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Added back SDL 1.2 sources, without HW accel

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pelya
2010-07-16 17:16:21 +03:00
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Bugs are now managed in the SDL bug tracker, here:
http://bugzilla.libsdl.org/
You may report bugs there, and search to see if a given issue has already
been reported, discussed, and maybe even fixed.
You may also find help at the SDL mailing list. Subscription information:
http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org
Bug reports are welcome here, but we really appreciate if you use Bugzilla, as
bugs discussed on the mailing list may be forgotten or missed.

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Simple DirectMedia Layer CREDITS
Thanks to everyone who made this possible, including:
* Cliff Matthews, for giving me a reason to start this project. :)
-- Executor rocks! *grin*
* Scott Call, for making a home for SDL on the 'Net... Thanks! :)
* The Linux Fund, C Magazine, Educational Technology Resources Inc.,
Gareth Noyce, Jesse Pavel, Keith Kitchin, Jeremy Horvath, Thomas Nicholson,
Hans-Peter Gygax, the Eternal Lands Development Team, Lars Brubaker,
and Phoenix Kokido for financial contributions
* Gaëtan de Menten for writing the PHP and SQL behind the SDL website
* Tim Jones for the new look of the SDL website
* Marco Kraus for setting up SDL merchandise
* Martin Donlon for his work on the SDL Documentation Project
* Ryan Gordon for helping everybody out and keeping the dream alive. :)
* IBM R&D Lab for their PS3 SPE video acceleration code
* Mattias Engdegård, for help with the Solaris port and lots of other help
* Max Watson, Matt Slot, and Kyle for help with the MacOS Classic port
* Stan Shebs, for the initial Mac OS X port
* Eric Wing, Max Horn, and Darrell Walisser for unflagging work on the Mac OS X port
* Patrick Trainor, Jim Boucher, and Mike Gorchak for the QNX Neutrino port
* Carsten Griwodz for the AIX port
* Gabriele Greco, for the Amiga port
* Patrice Mandin, for the Atari port
* Hannu Viitala for the EPOC port
* Marcus Mertama for the S60 port.
* Peter Valchev for nagging me about the OpenBSD port until I got it right. :)
* Kent B Mein, for a place to do the IRIX port
* Ash, for a place to do the OSF/1 Alpha port
* David Sowsy, for help with the BeOS port
* Eugenia Loli, for endless work on porting SDL games to BeOS
* Jon Taylor for the GGI front-end
* Paulus Esterhazy, for the Visual C++ testing and libraries
* Brenda Tantzen, for Metrowerks CodeWarrior on MacOS
* Chris Nentwich, for the Hermes assembly blitters
* Michael Vance and Jim Kutter for the X11 OpenGL support
* Stephane Peter, for the AAlib front-end and multi-threaded timer idea.
* Jon Atkins for SDL_image, SDL_mixer and SDL_net documentation
* Peter Wiklund, for the 1998 winning SDL logo,
and Arto Hamara, Steven Wong, and Kent Mein for other logo entries.
* Arne Claus, for the 2004 winning SDL logo,
and Shandy Brown, Jac, Alex Lyman, Mikkel Gjoel, #Guy, Jonas Hartmann,
Daniel Liljeberg, Ronald Sowa, DocD, Pekka Jaervinen, Patrick Avella,
Erkki Kontilla, Levon Gavalian, Hal Emerich, David Wiktorsson,
S. Schury and F. Hufsky, Ciska de Ruyver, Shredweat, Tyler Montbriand,
Martin Andersson, Merlyn Wysard, Fernando Ibanez, David Miller,
Andre Bommele, lovesby.com, Francisco Camenforte Torres, and David Igreja
for other logo entries.
* Bob Pendleton and David Olofson for being long time contributors to
the SDL mailing list.
* Everybody at Loki Software, Inc. for their great contributions!
And a big hand to everyone else who gave me appreciation, advice,
and suggestions, especially the good folks on the SDL mailing list.
THANKS! :)
-- Sam Lantinga <slouken@libsdl.org>

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To compile and install SDL:
1. Run './configure; make; make install'
If you are compiling for Windows using gcc, read the FAQ at:
http://www.libsdl.org/faq.php?action=listentries&category=4#42
If you are compiling using Visual C++ on Win32, you should read
the file VisualC.html
2. Look at the example programs in ./test, and check out the HTML
documentation in ./docs to see how to use the SDL library.
3. Join the SDL developer mailing list by sending E-mail to
sdl-request@libsdl.org
and put "subscribe" in the subject of the message.
Or alternatively you can use the web interface:
http://www.libsdl.org/mailing-list.php
That's it!
Sam Lantinga <slouken@libsdl.org>

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Simple DirectMedia Layer
(SDL)
Version 1.2
---
http://www.libsdl.org/
This is the Simple DirectMedia Layer, a general API that provides low
level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL,
and 2D framebuffer across multiple platforms.
The current version supports Linux, Windows CE/95/98/ME/XP/Vista, BeOS,
MacOS Classic, Mac OS X, FreeBSD, NetBSD, OpenBSD, BSD/OS, Solaris, IRIX,
and QNX. The code contains support for Dreamcast, Atari, AIX, OSF/Tru64,
RISC OS, SymbianOS, Nintendo DS, and OS/2, but these are not officially
supported.
SDL is written in C, but works with C++ natively, and has bindings to
several other languages, including Ada, C#, Eiffel, Erlang, Euphoria,
Guile, Haskell, Java, Lisp, Lua, ML, Objective C, Pascal, Perl, PHP,
Pike, Pliant, Python, Ruby, and Smalltalk.
This library is distributed under GNU LGPL version 2, which can be
found in the file "COPYING". This license allows you to use SDL
freely in commercial programs as long as you link with the dynamic
library.
The best way to learn how to use SDL is to check out the header files in
the "include" subdirectory and the programs in the "test" subdirectory.
The header files and test programs are well commented and always up to date.
More documentation is available in HTML format in "docs/index.html", and
a documentation wiki is available online at:
http://www.libsdl.org/cgi/docwiki.cgi
The test programs in the "test" subdirectory are in the public domain.
Frequently asked questions are answered online:
http://www.libsdl.org/faq.php
If you need help with the library, or just want to discuss SDL related
issues, you can join the developers mailing list:
http://www.libsdl.org/mailing-list.php
Enjoy!
Sam Lantinga (slouken@libsdl.org)

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Please distribute this file with the SDL runtime environment:
The Simple DirectMedia Layer (SDL for short) is a cross-platfrom library
designed to make it easy to write multi-media software, such as games and
emulators.
The Simple DirectMedia Layer library source code is available from:
http://www.libsdl.org/
This library is distributed under the terms of the GNU LGPL license:
http://www.gnu.org/copyleft/lesser.html

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The latest development version of SDL is available via Mercurial.
Mercurial allows you to get up-to-the-minute fixes and enhancements;
as a developer works on a source tree, you can use "hg" to mirror that
source tree instead of waiting for an official release. Please look
at the Mercurial website ( http://mercurial.selenic.com/ ) for more
information on using hg, where you can also download software for
Mac OS X, Windows, and Unix systems.
hg clone -u SDL-1.2 http://hg.libsdl.org/SDL
If you are building SDL with an IDE, you will need to copy the file
include/SDL_config.h.default to include/SDL_config.h before building.
If you are building SDL via configure, you will need to run autogen.sh
before running configure.
There is a web interface to the subversion repository at:
http://hg.libsdl.org/SDL/
There is an RSS feed available at that URL, for those that want to
track commits in real time.

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* Porting To A New Platform
The first thing you have to do when porting to a new platform, is look at
include/SDL_platform.h and create an entry there for your operating system.
The standard format is __PLATFORM__, where PLATFORM is the name of the OS.
Ideally SDL_platform.h will be able to auto-detect the system it's building
on based on C preprocessor symbols.
There are two basic ways of building SDL at the moment:
1. The "UNIX" way: ./configure; make; make install
If you have a GNUish system, then you might try this. Edit configure.in,
take a look at the large section labelled:
"Set up the configuration based on the target platform!"
Add a section for your platform, and then re-run autogen.sh and build!
2. Using an IDE:
If you're using an IDE or other non-configure build system, you'll probably
want to create a custom SDL_config.h for your platform. Edit SDL_config.h,
add a section for your platform, and create a custom SDL_config_{platform}.h,
based on SDL_config.h.minimal and SDL_config.h.in
Add the top level include directory to the header search path, and then add
the following sources to the project:
src/*.c
src/audio/*.c
src/cdrom/*.c
src/cpuinfo/*.c
src/events/*.c
src/file/*.c
src/joystick/*.c
src/stdlib/*.c
src/thread/*.c
src/timer/*.c
src/video/*.c
src/audio/disk/*.c
src/video/dummy/*.c
src/joystick/dummy/*.c
src/cdrom/dummy/*.c
src/thread/generic/*.c
src/timer/dummy/*.c
src/loadso/dummy/*.c
Once you have a working library without any drivers, you can go back to each
of the major subsystems and start implementing drivers for your platform.
If you have any questions, don't hesitate to ask on the SDL mailing list:
http://www.libsdl.org/mailing-list.php
Enjoy!
Sam Lantinga (slouken@libsdl.org)

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Wish list for the 1.3 development branch:
http://bugzilla.libsdl.org/
* Add mousewheel events (new unified event architecture?)
* DirectInput joystick support needs to be implemented
* Be able to enumerate and select available audio and video drivers
* Fullscreen video mode support for Mac OS X
* Explicit vertical retrace wait (maybe separate from SDL_Flip?)
* Shaped windows, windows without borders
* Multiple windows, multiple display support
* SDL_INIT_EVENTTHREAD on Windows and MacOS?
* Add a timestamp to events
* Add audio input API
* Add hardware accelerated scaled blit
* Add hardware accelerated alpha blits
* Redesign blitting architecture to allow blit plugins
In the jump from 1.2 to 1.3, we should change the SDL_Rect members to
int and evaluate all the rest of the datatypes. This is the only place
we should do it though, since the 1.2 series should not break binary
compatibility in this way.
Requests:
* PCM and CDROM volume control (deprecated, but possible)

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This is a list of API changes in SDL's version history.
Version 1.0:
1.2.14:
Added cast macros for correct usage with C++:
SDL_reinterpret_cast(type, expression)
SDL_static_cast(type, expression)
Added SDL_VIDEO_FULLSCREEN_DISPLAY as a preferred synonym for
SDL_VIDEO_FULLSCREEN_HEAD on X11.
Added SDL_DISABLE_LOCK_KEYS environment variable to enable normal
up/down events for Caps-Lock and Num-Lock keys.
1.2.13:
Added SDL_BUTTON_X1 and SDL_BUTTON_X2 constants.
1.2.12:
Added SDL_VIDEO_ALLOW_SCREENSAVER to override SDL's disabling
of the screensaver on Mac OS X and X11.
1.2.10:
If SDL_OpenAudio() is passed zero for the desired format
fields, the following environment variables will be used
to fill them in:
SDL_AUDIO_FREQUENCY
SDL_AUDIO_FORMAT
SDL_AUDIO_CHANNELS
SDL_AUDIO_SAMPLES
If an environment variable is not specified, it will be set
to a reasonable default value.
Added support for the SDL_VIDEO_FULLSCREEN_HEAD environment
variable, currently supported on X11 Xinerama configurations.
Added SDL_GL_SWAP_CONTROL to wait for vsync in OpenGL applications.
Added SDL_GL_ACCELERATED_VISUAL to guarantee hardware acceleration.
Added current_w and current_h to the SDL_VideoInfo structure,
which is set to the desktop resolution during video intialization,
and then set to the current resolution when a video mode is set.
SDL_SetVideoMode() now accepts 0 for width or height and will use
the current video mode (or the desktop mode if no mode has been set.)
Added SDL_GetKeyRepeat()
Added SDL_config.h, with defaults for various build environments.
1.2.7:
Added CPU feature detection functions to SDL_cpuinfo.h:
SDL_HasRDTSC(), SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE(),
SDL_HasAltiVec()
Added function to create RWops from const memory: SDL_RWFromConstMem()
1.2.6:
Added SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject()
Added SDL_GL_MULTISAMPLEBUFFERS and SDL_GL_MULTISAMPLESAMPLES for FSAA
1.2.5:
Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
Added SDL_GL_STEREO for stereoscopic OpenGL contexts
1.2.0:
Added SDL_VIDEOEXPOSE event to signal that the screen needs to
be redrawn. This is currently only delivered to OpenGL windows
on X11, though it may be delivered in the future when the video
memory is lost under DirectX.
1.1.8:
You can pass SDL_NOFRAME to SDL_VideoMode() to create a window
that has no title bar or frame decoration. Fullscreen video
modes automatically have this flag set.
Added a function to query the clipping rectangle for a surface:
void SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect)
Added a function to query the current event filter:
SDL_EventFilter SDL_GetEventFilter(void)
If you pass -1 to SDL_ShowCursor(), it won't change the current
cursor visibility state, but will still return it.
SDL_LockSurface() and SDL_UnlockSurface() are recursive, meaning
you can nest them as deep as you want, as long as each lock call
has a matching unlock call. The surface remains locked until the
last matching unlock call.
Note that you may not blit to or from a locked surface.
1.1.7:
The SDL_SetGammaRamp() and SDL_GetGammaRamp() functions now take
arrays of Uint16 values instead of Uint8 values. For the most part,
you can just take your old values and shift them up 8 bits to get
new correct values for your gamma ramps.
You can pass SDL_RLEACCEL in flags passed to SDL_ConvertSurface()
and SDL will try to RLE accelerate colorkey and alpha blits in the
resulting surface.
1.1.6:
Added a function to return the thread ID of a specific thread:
Uint32 SDL_GetThreadID(SDL_Thread *thread)
If 'thread' is NULL, this function returns the id for this thread.
1.1.5:
The YUV overlay structure has been changed to use an array of
pitches and pixels representing the planes of a YUV image, to
better enable hardware acceleration. The YV12 and IYUV formats
each have three planes, corresponding to the Y, U, and V portions
of the image, while packed pixel YUV formats just have one plane.
For palettized mode (8bpp), the screen colormap is now split in
a physical and a logical palette. The physical palette determines
what colours the screen pixels will get when displayed, and the
logical palette controls the mapping from blits to/from the screen.
A new function, SDL_SetPalette() has been added to change
logical and physical palettes separately. SDL_SetColors() works
just as before, and is equivalent to calling SDL_SetPalette() with
a flag argument of (SDL_LOGPAL|SDL_PHYSPAL).
SDL_BlitSurface() no longer modifies the source rectangle, only the
destination rectangle. The width/height members of the destination
rectangle are ignored, only the position is used.
The old source clipping function SDL_SetClipping() has been replaced
with a more useful function to set the destination clipping rectangle:
SDL_bool SDL_SetClipRect(SDL_Surface *surface, SDL_Rect *rect)
Added a function to see what subsystems have been initialized:
Uint32 SDL_WasInit(Uint32 flags)
The Big Alpha Flip: SDL now treats alpha as opacity like everybody
else, and not as transparency:
A new cpp symbol: SDL_ALPHA_OPAQUE is defined as 255
A new cpp symbol: SDL_ALPHA_TRANSPARENT is defined as 0
Values between 0 and 255 vary from fully transparent to fully opaque.
New functions:
SDL_DisplayFormatAlpha()
Returns a surface converted to a format with alpha-channel
that can be blit efficiently to the screen. (In other words,
like SDL_DisplayFormat() but the resulting surface has
an alpha channel.) This is useful for surfaces with alpha.
SDL_MapRGBA()
Works as SDL_MapRGB() but takes an additional alpha parameter.
SDL_GetRGBA()
Works as SDL_GetRGB() but also returns the alpha value
(SDL_ALPHA_OPAQUE for formats without an alpha channel)
Both SDL_GetRGB() and SDL_GetRGBA() now always return values in
the [0..255] interval. Previously, SDL_GetRGB() would return
(0xf8, 0xfc, 0xf8) for a completely white pixel in RGB565 format.
(N.B.: This is broken for bit fields < 3 bits.)
SDL_MapRGB() returns pixels in which the alpha channel is set opaque.
SDL_SetAlpha() can now be used for both setting the per-surface
alpha, using the new way of thinking of alpha, and also to enable
and disable per-pixel alpha blending for surfaces with an alpha
channel:
To disable alpha blending:
SDL_SetAlpha(surface, 0, 0);
To re-enable alpha blending:
SDL_SetAlpha(surface, SDL_SRCALPHA, 0);
Surfaces with an alpha channel have blending enabled by default.
SDL_SetAlpha() now accepts SDL_RLEACCEL as a flag, which requests
RLE acceleration of blits, just as like with SDL_SetColorKey().
This flag can be set for both surfaces with an alpha channel
and surfaces with an alpha value set by SDL_SetAlpha().
As always, RLE surfaces must be locked before pixel access is
allowed, and unlocked before any other SDL operations are done
on it.
The blit semantics for surfaces with and without alpha and colorkey
have now been defined:
RGBA->RGB:
SDL_SRCALPHA set:
alpha-blend (using alpha-channel).
SDL_SRCCOLORKEY ignored.
SDL_SRCALPHA not set:
copy RGB.
if SDL_SRCCOLORKEY set, only copy the pixels matching the
RGB values of the source colour key, ignoring alpha in the
comparison.
RGB->RGBA:
SDL_SRCALPHA set:
alpha-blend (using the source per-surface alpha value);
set destination alpha to opaque.
SDL_SRCALPHA not set:
copy RGB, set destination alpha to opaque.
both:
if SDL_SRCCOLORKEY set, only copy the pixels matching the
source colour key.
RGBA->RGBA:
SDL_SRCALPHA set:
alpha-blend (using the source alpha channel) the RGB values;
leave destination alpha untouched. [Note: is this correct?]
SDL_SRCCOLORKEY ignored.
SDL_SRCALPHA not set:
copy all of RGBA to the destination.
if SDL_SRCCOLORKEY set, only copy the pixels matching the
RGB values of the source colour key, ignoring alpha in the
comparison.
RGB->RGB:
SDL_SRCALPHA set:
alpha-blend (using the source per-surface alpha value).
SDL_SRCALPHA not set:
copy RGB.
both:
if SDL_SRCCOLORKEY set, only copy the pixels matching the
source colour key.
As a special case, blits from surfaces with per-surface alpha
value of 128 (50% transparency) are optimised and much faster
than other alpha values. This does not apply to surfaces with
alpha channels (per-pixel alpha).
New functions for manipulating the gamma of the display have
been added:
int SDL_SetGamma(float red, float green, float blue);
int SDL_SetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue);
int SDL_GetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue);
Gamma ramps are tables with 256 entries which map the screen color
components into actually displayed colors. For an example of
implementing gamma correction and gamma fades, see test/testgamma.c
Gamma control is not supported on all hardware.
1.1.4:
The size of the SDL_CDtrack structure changed from 8 to 12 bytes
as the size of the length member was extended to 32 bits.
You can now use SDL for 2D blitting with a GL mode by passing the
SDL_OPENGLBLIT flag to SDL_SetVideoMode(). You can specify 16 or
32 bpp, and the data in the framebuffer is put into the GL scene
when you call SDL_UpdateRects(), and the scene will be visible
when you call SDL_GL_SwapBuffers().
Run the "testgl" test program with the -logo command line option
to see an example of this blending of 2D and 3D in SDL.
1.1.3:
Added SDL_FreeRW() to the API, to complement SDL_AllocRW()
Added resizable window support - just add SDL_RESIZABLE to the
SDL_SetVideoMode() flags, and then wait for SDL_VIDEORESIZE events.
See SDL_events.h for details on the new SDL_ResizeEvent structure.
Added condition variable support, based on mutexes and semaphores.
SDL_CreateCond()
SDL_DestroyCond()
SDL_CondSignal()
SDL_CondBroadcast()
SDL_CondWait()
SDL_CondTimedWait()
The new function prototypes are in SDL_mutex.h
Added counting semaphore support, based on the mutex primitive.
SDL_CreateSemaphore()
SDL_DestroySemaphore()
SDL_SemWait()
SDL_SemTryWait()
SDL_SemWaitTimeout()
SDL_SemPost()
SDL_SemValue()
The new function prototypes are in SDL_mutex.h
Added support for asynchronous blitting. To take advantage of this,
you must set the SDL_ASYNCBLIT flag when setting the video mode and
creating surfaces that you want accelerated in this way. You must
lock surfaces that have this flag set, and the lock will block until
any queued blits have completed.
Added YUV video overlay support.
The supported YUV formats are: YV12, IYUV, YUY2, UYVY, and YVYU.
This function creates an overlay surface:
SDL_CreateYUVOverlay()
You must lock and unlock the overlay to get access to the data:
SDL_LockYUVOverlay() SDL_UnlockYUVOverlay()
You can then display the overlay:
SDL_DisplayYUVOverlay()
You must free the overlay when you are done using it:
SDL_FreeYUVOverlay()
See SDL_video.h for the full function prototypes.
The joystick hat position constants have been changed:
Old constant New constant
------------ ------------
0 SDL_HAT_CENTERED
1 SDL_HAT_UP
2 SDL_HAT_RIGHTUP
3 SDL_HAT_RIGHT
4 SDL_HAT_RIGHTDOWN
5 SDL_HAT_DOWN
6 SDL_HAT_LEFTDOWN
7 SDL_HAT_LEFT
8 SDL_HAT_LEFTUP
The new constants are bitmasks, so you can check for the
individual axes like this:
if ( hat_position & SDL_HAT_UP ) {
}
and you'll catch left-up, up, and right-up.
1.1.2:
Added multiple timer support:
SDL_AddTimer() and SDL_RemoveTimer()
SDL_WM_SetIcon() now respects the icon colorkey if mask is NULL.
1.1.0:
Added initial OpenGL support.
First set GL attributes (such as RGB depth, alpha depth, etc.)
SDL_GL_SetAttribute()
Then call SDL_SetVideoMode() with the SDL_OPENGL flag.
Perform all of your normal GL drawing.
Finally swap the buffers with the new SDL function:
SDL_GL_SwapBuffers()
See the new 'testgl' test program for an example of using GL with SDL.
You can load GL extension functions by using the function:
SDL_GL_LoadProcAddress()
Added functions to initialize and cleanup specific SDL subsystems:
SDL_InitSubSystem() and SDL_QuitSubSystem()
Added user-defined event type:
typedef struct {
Uint8 type;
int code;
void *data1;
void *data2;
} SDL_UserEvent;
This structure is in the "user" member of an SDL_Event.
Added a function to push events into the event queue:
SDL_PushEvent()
Example of using the new SDL user-defined events:
{
SDL_Event event;
event.type = SDL_USEREVENT;
event.user.code = my_event_code;
event.user.data1 = significant_data;
event.user.data2 = 0;
SDL_PushEvent(&event);
}
Added a function to get mouse deltas since last query:
SDL_GetRelativeMouseState()
Added a boolean datatype to SDL_types.h:
SDL_bool = { SDL_TRUE, SDL_FALSE }
Added a function to get the current audio status:
SDL_GetAudioState();
It returns one of:
SDL_AUDIO_STOPPED,
SDL_AUDIO_PLAYING,
SDL_AUDIO_PAUSED
Added an AAlib driver (ASCII Art) - by Stephane Peter.
1.0.6:
The input grab state is reset after each call to SDL_SetVideoMode().
The input is grabbed by default in fullscreen mode, and ungrabbed in
windowed mode. If you want to set input grab to a particular value,
you should set it after each call to SDL_SetVideoMode().
1.0.5:
Exposed SDL_AudioInit(), SDL_VideoInit()
Added SDL_AudioDriverName() and SDL_VideoDriverName()
Added new window manager function:
SDL_WM_ToggleFullScreen()
This is currently implemented only on Linux
The ALT-ENTER code has been removed - it's not appropriate for a
lib to bind keys when they aren't even emergency escape sequences.
ALT-ENTER functionality can be implemented with the following code:
int Handle_AltEnter(const SDL_Event *event)
{
if ( event->type == SDL_KEYDOWN ) {
if ( (event->key.keysym.sym == SDLK_RETURN) &&
(event->key.keysym.mod & KMOD_ALT) ) {
SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
return(0);
}
}
return(1);
}
SDL_SetEventFilter(Handle_AltEnter);
1.0.3:
Under X11, if you grab the input and hide the mouse cursor,
the mouse will go into a "relative motion" mode where you
will always get relative motion events no matter how far in
each direction you move the mouse - relative motion is not
bounded by the edges of the window (though the absolute values
of the mouse positions are clamped by the size of the window).
The SVGAlib, framebuffer console, and DirectInput drivers all
have this behavior naturally, and the GDI and BWindow drivers
never go into "relative motion" mode.
1.0.2:
Added a function to enable keyboard repeat:
SDL_EnableKeyRepeat()
Added a function to grab the mouse and keyboard input
SDL_WM_GrabInput()
Added a function to iconify the window.
SDL_WM_IconifyWindow()
If this function succeeds, the application will receive an event
signaling SDL_APPACTIVE event
1.0.1:
Added constants to SDL_audio.h for 16-bit native byte ordering:
AUDIO_U16SYS, AUDIO_S16SYS
1.0.0:
New public release
Version 0.11:
0.11.5:
A new function SDL_GetVideoSurface() has been added, and returns
a pointer to the current display surface.
SDL_AllocSurface() has been renamed SDL_CreateRGBSurface(), and
a new function SDL_CreateRGBSurfaceFrom() has been added to allow
creating an SDL surface from an existing pixel data buffer.
Added SDL_GetRGB() to the headers and documentation.
0.11.4:
SDL_SetLibraryPath() is no longer meaningful, and has been removed.
0.11.3:
A new flag for SDL_Init(), SDL_INIT_NOPARACHUTE, prevents SDL from
installing fatal signal handlers on operating systems that support
them.
Version 0.9:
0.9.15:
SDL_CreateColorCursor() has been removed. Color cursors should
be implemented as sprites, blitted by the application when the
cursor moves. To get smooth color cursor updates when the app
is busy, pass the SDL_INIT_EVENTTHREAD flag to SDL_Init(). This
allows you to handle the mouse motion in another thread from an
event filter function, but is currently only supported by Linux
and BeOS. Note that you'll have to protect the display surface
from multi-threaded access by using mutexes if you do this.
Thread-safe surface support has been removed from SDL.
This makes blitting somewhat faster, by removing SDL_MiddleBlit().
Code that used SDL_MiddleBlit() should use SDL_LowerBlit() instead.
You can make your surfaces thread-safe by allocating your own
mutex and making lock/unlock calls around accesses to your surface.
0.9.14:
SDL_GetMouseState() now takes pointers to int rather than Uint16.
If you set the SDL_WINDOWID environment variable under UNIX X11,
SDL will use that as the main window instead of creating it's own.
This is an unsupported extension to SDL, and not portable at all.
0.9.13:
Added a function SDL_SetLibraryPath() which can be used to specify
the directory containing the SDL dynamic libraries. This is useful
for commercial applications which ship with particular versions
of the libraries, and for security on multi-user systems.
If this function is not used, the default system directories are
searched using the native dynamic object loading mechanism.
In order to support C linkage under Visual C++, you must declare
main() without any return type:
main(int argc, char *argv[]) {
/* Do the program... */
return(0);
}
C++ programs should also return a value if compiled under VC++.
The blit_endian member of the SDL_VideoInfo struct has been removed.
SDL_SymToASCII() has been replaced with SDL_GetKeyName(), so there
is now no longer any function to translate a keysym to a character.
The SDL_keysym structure has been extended with a 'scancode' and
'unicode' member. The 'scancode' is a hardware specific scancode
for the key that was pressed, and may be 0. The 'unicode' member
is a 16-bit UNICODE translation of the key that was pressed along
with any modifiers or compose keys that have been pressed.
If no UNICODE translation exists for the key, 'unicode' will be 0.
Added a function SDL_EnableUNICODE() to enable/disable UNICODE
translation of character keypresses. Translation defaults off.
To convert existing code to use the new API, change code which
uses SDL_SymToASCII() to get the keyname to use SDL_GetKeyName(),
and change code which uses it to get the ASCII value of a sym to
use the 'unicode' member of the event keysym.
0.9.12:
There is partial support for 64-bit datatypes. I don't recommend
you use this if you have a choice, because 64-bit datatypes are not
supported on many platforms. On platforms for which it is supported,
the SDL_HAS_64BIT_TYPE C preprocessor define will be enabled, and
you can use the Uint64 and Sint64 datatypes.
Added functions to SDL_endian.h to support 64-bit datatypes:
SDL_SwapLE64(), SDL_SwapBE64(),
SDL_ReadLE64(), SDL_ReadBE64(), SDL_WriteLE64(), SDL_WriteBE64()
A new member "len_ratio" has been added to the SDL_AudioCVT structure,
and allows you to determine either the original buffer length or the
converted buffer length, given the other.
A new function SDL_FreeWAV() has been added to the API to free data
allocated by SDL_LoadWAV_RW(). This is necessary under Win32 since
the gcc compiled DLL uses a different heap than VC++ compiled apps.
SDL now has initial support for international keyboards using the
Latin character set.
If a particular mapping is desired, you can set the DEFAULT_KEYBOARD
compile-time variable, or you can set the environment variable
"SDL_KEYBOARD" to a string identifying the keyboard mapping you desire.
The valid values for these variables can be found in SDL_keyboard.c
Full support for German and French keyboards under X11 is implemented.
0.9.11:
The THREADED_EVENTS compile-time define has been replaced with the
SDL_INIT_EVENTTHREAD flag. If this flag is passed to SDL_Init(),
SDL will create a separate thread to perform input event handling.
If this flag is passed to SDL_Init(), and the OS doesn't support
event handling in a separate thread, SDL_Init() will fail.
Be sure to add calls to SDL_Delay() in your main thread to allow
the OS to schedule your event thread, or it may starve, leading
to slow event delivery and/or dropped events.
Currently MacOS and Win32 do not support this flag, while BeOS
and Linux do support it. I recommend that your application only
use this flag if absolutely necessary.
The SDL thread function passed to SDL_CreateThread() now returns a
status. This status can be retrieved by passing a non-NULL pointer
as the 'status' argument to SDL_WaitThread().
The volume parameter to SDL_MixAudio() has been increased in range
from (0-8) to (0-128)
SDL now has a data source abstraction which can encompass a file,
an area of memory, or any custom object you can envision. It uses
these abstractions, SDL_RWops, in the endian read/write functions,
and the built-in WAV and BMP file loaders. This means you can load
WAV chunks from memory mapped files, compressed archives, network
pipes, or anything else that has a data read abstraction.
There are three built-in data source abstractions:
SDL_RWFromFile(), SDL_RWFromFP(), SDL_RWFromMem()
along with a generic data source allocation function:
SDL_AllocRW()
These data sources can be used like stdio file pointers with the
following convenience functions:
SDL_RWseek(), SDL_RWread(), SDL_RWwrite(), SDL_RWclose()
These functions are defined in the new header file "SDL_rwops.h"
The endian swapping functions have been turned into macros for speed
and SDL_CalculateEndian() has been removed. SDL_endian.h now defines
SDL_BYTEORDER as either SDL_BIG_ENDIAN or SDL_LIL_ENDIAN depending on
the endianness of the host system.
The endian read/write functions now take an SDL_RWops pointer
instead of a stdio FILE pointer, to support the new data source
abstraction.
The SDL_*LoadWAV() functions have been replaced with a single
SDL_LoadWAV_RW() function that takes a SDL_RWops pointer as it's
first parameter, and a flag whether or not to automatically
free it as the second parameter. SDL_LoadWAV() is a macro for
backward compatibility and convenience:
SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
The SDL_*LoadBMP()/SDL_*SaveBMP() functions have each been replaced
with a single function that takes a SDL_RWops pointer as it's
first parameter, and a flag whether or not to automatically
free it as the second parameter. SDL_LoadBMP() and SDL_SaveBMP()
are macros for backward compatibility and convenience:
SDL_LoadBMP_RW(SDL_RWFromFile("sample.bmp", "rb"), 1, ...);
SDL_SaveBMP_RW(SDL_RWFromFile("sample.bmp", "wb"), 1, ...);
Note that these functions use SDL_RWseek() extensively, and should
not be used on pipes or other non-seekable data sources.
0.9.10:
The Linux SDL_SysWMInfo and SDL_SysWMMsg structures have been
extended to support multiple types of display drivers, as well as
safe access to the X11 display when THREADED_EVENTS is enabled.
The new structures are documented in the SDL_syswm.h header file.
Thanks to John Elliott <jce@seasip.demon.co.uk>, the UK keyboard
should now work properly, as well as the "Windows" keys on US
keyboards.
The Linux CD-ROM code now reads the CD-ROM devices from /etc/fstab
instead of trying to open each block device on the system.
The CD must be listed in /etc/fstab as using the iso9660 filesystem.
On Linux, if you define THREADED_EVENTS at compile time, a separate
thread will be spawned to gather X events asynchronously from the
graphics updates. This hasn't been extensively tested, but it does
provide a means of handling keyboard and mouse input in a separate
thread from the graphics thread. (This is now enabled by default.)
A special access function SDL_PeepEvents() allows you to manipulate
the event queue in a thread-safe manner, including peeking at events,
removing events of a specified type, and adding new events of arbitrary
type to the queue (use the new 'user' member of the SDL_Event type).
If you use SDL_PeepEvents() to gather events, then the main graphics
thread needs to call SDL_PumpEvents() periodically to drive the event
loop and generate input events. This is not necessary if SDL has been
compiled with THREADED_EVENTS defined, but doesn't hurt.
A new function SDL_ThreadID() returns the identifier associated with
the current thread.
0.9.9:
The AUDIO_STEREO format flag has been replaced with a new 'channels'
member of the SDL_AudioSpec structure. The channels are 1 for mono
audio, and 2 for stereo audio. In the future more channels may be
supported for 3D surround sound.
The SDL_MixAudio() function now takes an additional volume parameter,
which should be set to SDL_MIX_MAXVOLUME for compatibility with the
original function.
The CD-ROM functions which take a 'cdrom' parameter can now be
passed NULL, and will act on the last successfully opened CD-ROM.
0.9.8:
No changes, bugfixes only.
0.9.7:
No changes, bugfixes only.
0.9.6:
Added a fast rectangle fill function: SDL_FillRect()
Addition of a useful function for getting info on the video hardware:
const SDL_VideoInfo *SDL_GetVideoInfo(void)
This function replaces SDL_GetDisplayFormat().
Initial support for double-buffering:
Use the SDL_DOUBLEBUF flag in SDL_SetVideoMode()
Update the screen with a new function: SDL_Flip()
SDL_AllocSurface() takes two new flags:
SDL_SRCCOLORKEY means that the surface will be used for colorkey blits
and if the hardware supports hardware acceleration of colorkey blits
between two surfaces in video memory, to place the surface in video
memory if possible, otherwise it will be placed in system memory.
SDL_SRCALPHA means that the surface will be used for alpha blits and
if the hardware supports hardware acceleration of alpha blits between
two surfaces in video memory, to place the surface in video memory
if possible, otherwise it will be placed in system memory.
SDL_HWSURFACE now means that the surface will be created with the
same format as the display surface, since having surfaces in video
memory is only useful for fast blitting to the screen, and you can't
blit surfaces with different surface formats in video memory.
0.9.5:
You can now pass a NULL mask to SDL_WM_SetIcon(), and it will assume
that the icon consists of the entire image.
SDL_LowerBlit() is back -- but don't use it on the display surface.
It is exactly the same as SDL_MiddleBlit(), but doesn't check for
thread safety.
Added SDL_FPLoadBMP(), SDL_FPSaveBMP(), SDL_FPLoadWAV(), which take
a FILE pointer instead of a file name.
Added CD-ROM audio control API:
SDL_CDNumDrives()
SDL_CDName()
SDL_CDOpen()
SDL_CDStatus()
SDL_CDPlayTracks()
SDL_CDPlay()
SDL_CDPause()
SDL_CDResume()
SDL_CDStop()
SDL_CDEject()
SDL_CDClose()
0.9.4:
No changes, bugfixes only.
0.9.3:
Mouse motion event now includes relative motion information:
Sint16 event->motion.xrel, Sint16 event->motion.yrel
X11 keyrepeat handling can be disabled by defining IGNORE_X_KEYREPEAT
(Add -DIGNORE_X_KEYREPEAT to CFLAGS line in obj/x11Makefile)
0.9.2:
No changes, bugfixes only.
0.9.1:
Removed SDL_MapSurface() and SDL_UnmapSurface() -- surfaces are now
automatically mapped on blit.
0.8.0:
SDL stable release

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL.h
* Main include header for the SDL library
*/
#ifndef _SDL_H
#define _SDL_H
#include "SDL_main.h"
#include "SDL_stdinc.h"
#include "SDL_audio.h"
#include "SDL_cdrom.h"
#include "SDL_cpuinfo.h"
#include "SDL_endian.h"
#include "SDL_error.h"
#include "SDL_events.h"
#include "SDL_loadso.h"
#include "SDL_mutex.h"
#include "SDL_rwops.h"
#include "SDL_thread.h"
#include "SDL_timer.h"
#include "SDL_video.h"
#include "SDL_version.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @file SDL.h
* @note As of version 0.5, SDL is loaded dynamically into the application
*/
/** @name SDL_INIT Flags
* These are the flags which may be passed to SDL_Init() -- you should
* specify the subsystems which you will be using in your application.
*/
/*@{*/
#define SDL_INIT_TIMER 0x00000001
#define SDL_INIT_AUDIO 0x00000010
#define SDL_INIT_VIDEO 0x00000020
#define SDL_INIT_CDROM 0x00000100
#define SDL_INIT_JOYSTICK 0x00000200
#define SDL_INIT_NOPARACHUTE 0x00100000 /**< Don't catch fatal signals */
#define SDL_INIT_EVENTTHREAD 0x01000000 /**< Not supported on all OS's */
#define SDL_INIT_EVERYTHING 0x0000FFFF
/*@}*/
/** This function loads the SDL dynamically linked library and initializes
* the subsystems specified by 'flags' (and those satisfying dependencies)
* Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup
* signal handlers for some commonly ignored fatal signals (like SIGSEGV)
*/
extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags);
/** This function initializes specific SDL subsystems */
extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags);
/** This function cleans up specific SDL subsystems */
extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags);
/** This function returns mask of the specified subsystems which have
* been initialized.
* If 'flags' is 0, it returns a mask of all initialized subsystems.
*/
extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags);
/** This function cleans up all initialized subsystems and unloads the
* dynamically linked library. You should call it upon all exit conditions.
*/
extern DECLSPEC void SDLCALL SDL_Quit(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_H */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_active.h
* Include file for SDL application focus event handling
*/
#ifndef _SDL_active_h
#define _SDL_active_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @name The available application states */
/*@{*/
#define SDL_APPMOUSEFOCUS 0x01 /**< The app has mouse coverage */
#define SDL_APPINPUTFOCUS 0x02 /**< The app has input focus */
#define SDL_APPACTIVE 0x04 /**< The application is active */
/*@}*/
/* Function prototypes */
/**
* This function returns the current state of the application, which is a
* bitwise combination of SDL_APPMOUSEFOCUS, SDL_APPINPUTFOCUS, and
* SDL_APPACTIVE. If SDL_APPACTIVE is set, then the user is able to
* see your application, otherwise it has been iconified or disabled.
*/
extern DECLSPEC Uint8 SDLCALL SDL_GetAppState(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_active_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_audio.h
* Access to the raw audio mixing buffer for the SDL library
*/
#ifndef _SDL_audio_h
#define _SDL_audio_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_endian.h"
#include "SDL_mutex.h"
#include "SDL_thread.h"
#include "SDL_rwops.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* When filling in the desired audio spec structure,
* - 'desired->freq' should be the desired audio frequency in samples-per-second.
* - 'desired->format' should be the desired audio format.
* - 'desired->samples' is the desired size of the audio buffer, in samples.
* This number should be a power of two, and may be adjusted by the audio
* driver to a value more suitable for the hardware. Good values seem to
* range between 512 and 8096 inclusive, depending on the application and
* CPU speed. Smaller values yield faster response time, but can lead
* to underflow if the application is doing heavy processing and cannot
* fill the audio buffer in time. A stereo sample consists of both right
* and left channels in LR ordering.
* Note that the number of samples is directly related to time by the
* following formula: ms = (samples*1000)/freq
* - 'desired->size' is the size in bytes of the audio buffer, and is
* calculated by SDL_OpenAudio().
* - 'desired->silence' is the value used to set the buffer to silence,
* and is calculated by SDL_OpenAudio().
* - 'desired->callback' should be set to a function that will be called
* when the audio device is ready for more data. It is passed a pointer
* to the audio buffer, and the length in bytes of the audio buffer.
* This function usually runs in a separate thread, and so you should
* protect data structures that it accesses by calling SDL_LockAudio()
* and SDL_UnlockAudio() in your code.
* - 'desired->userdata' is passed as the first parameter to your callback
* function.
*
* @note The calculated values in this structure are calculated by SDL_OpenAudio()
*
*/
typedef struct SDL_AudioSpec {
int freq; /**< DSP frequency -- samples per second */
Uint16 format; /**< Audio data format */
Uint8 channels; /**< Number of channels: 1 mono, 2 stereo */
Uint8 silence; /**< Audio buffer silence value (calculated) */
Uint16 samples; /**< Audio buffer size in samples (power of 2) */
Uint16 padding; /**< Necessary for some compile environments */
Uint32 size; /**< Audio buffer size in bytes (calculated) */
/**
* This function is called when the audio device needs more data.
*
* @param[out] stream A pointer to the audio data buffer
* @param[in] len The length of the audio buffer in bytes.
*
* Once the callback returns, the buffer will no longer be valid.
* Stereo samples are stored in a LRLRLR ordering.
*/
void (SDLCALL *callback)(void *userdata, Uint8 *stream, int len);
void *userdata;
} SDL_AudioSpec;
/**
* @name Audio format flags
* defaults to LSB byte order
*/
/*@{*/
#define AUDIO_U8 0x0008 /**< Unsigned 8-bit samples */
#define AUDIO_S8 0x8008 /**< Signed 8-bit samples */
#define AUDIO_U16LSB 0x0010 /**< Unsigned 16-bit samples */
#define AUDIO_S16LSB 0x8010 /**< Signed 16-bit samples */
#define AUDIO_U16MSB 0x1010 /**< As above, but big-endian byte order */
#define AUDIO_S16MSB 0x9010 /**< As above, but big-endian byte order */
#define AUDIO_U16 AUDIO_U16LSB
#define AUDIO_S16 AUDIO_S16LSB
/**
* @name Native audio byte ordering
*/
/*@{*/
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define AUDIO_U16SYS AUDIO_U16LSB
#define AUDIO_S16SYS AUDIO_S16LSB
#else
#define AUDIO_U16SYS AUDIO_U16MSB
#define AUDIO_S16SYS AUDIO_S16MSB
#endif
/*@}*/
/*@}*/
/** A structure to hold a set of audio conversion filters and buffers */
typedef struct SDL_AudioCVT {
int needed; /**< Set to 1 if conversion possible */
Uint16 src_format; /**< Source audio format */
Uint16 dst_format; /**< Target audio format */
double rate_incr; /**< Rate conversion increment */
Uint8 *buf; /**< Buffer to hold entire audio data */
int len; /**< Length of original audio buffer */
int len_cvt; /**< Length of converted audio buffer */
int len_mult; /**< buffer must be len*len_mult big */
double len_ratio; /**< Given len, final size is len*len_ratio */
void (SDLCALL *filters[10])(struct SDL_AudioCVT *cvt, Uint16 format);
int filter_index; /**< Current audio conversion function */
} SDL_AudioCVT;
/* Function prototypes */
/**
* @name Audio Init and Quit
* These functions are used internally, and should not be used unless you
* have a specific need to specify the audio driver you want to use.
* You should normally use SDL_Init() or SDL_InitSubSystem().
*/
/*@{*/
extern DECLSPEC int SDLCALL SDL_AudioInit(const char *driver_name);
extern DECLSPEC void SDLCALL SDL_AudioQuit(void);
/*@}*/
/**
* This function fills the given character buffer with the name of the
* current audio driver, and returns a pointer to it if the audio driver has
* been initialized. It returns NULL if no driver has been initialized.
*/
extern DECLSPEC char * SDLCALL SDL_AudioDriverName(char *namebuf, int maxlen);
/**
* This function opens the audio device with the desired parameters, and
* returns 0 if successful, placing the actual hardware parameters in the
* structure pointed to by 'obtained'. If 'obtained' is NULL, the audio
* data passed to the callback function will be guaranteed to be in the
* requested format, and will be automatically converted to the hardware
* audio format if necessary. This function returns -1 if it failed
* to open the audio device, or couldn't set up the audio thread.
*
* The audio device starts out playing silence when it's opened, and should
* be enabled for playing by calling SDL_PauseAudio(0) when you are ready
* for your audio callback function to be called. Since the audio driver
* may modify the requested size of the audio buffer, you should allocate
* any local mixing buffers after you open the audio device.
*
* @sa SDL_AudioSpec
*/
extern DECLSPEC int SDLCALL SDL_OpenAudio(SDL_AudioSpec *desired, SDL_AudioSpec *obtained);
typedef enum {
SDL_AUDIO_STOPPED = 0,
SDL_AUDIO_PLAYING,
SDL_AUDIO_PAUSED
} SDL_audiostatus;
/** Get the current audio state */
extern DECLSPEC SDL_audiostatus SDLCALL SDL_GetAudioStatus(void);
/**
* This function pauses and unpauses the audio callback processing.
* It should be called with a parameter of 0 after opening the audio
* device to start playing sound. This is so you can safely initialize
* data for your callback function after opening the audio device.
* Silence will be written to the audio device during the pause.
*/
extern DECLSPEC void SDLCALL SDL_PauseAudio(int pause_on);
/**
* This function loads a WAVE from the data source, automatically freeing
* that source if 'freesrc' is non-zero. For example, to load a WAVE file,
* you could do:
* @code SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...); @endcode
*
* If this function succeeds, it returns the given SDL_AudioSpec,
* filled with the audio data format of the wave data, and sets
* 'audio_buf' to a malloc()'d buffer containing the audio data,
* and sets 'audio_len' to the length of that audio buffer, in bytes.
* You need to free the audio buffer with SDL_FreeWAV() when you are
* done with it.
*
* This function returns NULL and sets the SDL error message if the
* wave file cannot be opened, uses an unknown data format, or is
* corrupt. Currently raw and MS-ADPCM WAVE files are supported.
*/
extern DECLSPEC SDL_AudioSpec * SDLCALL SDL_LoadWAV_RW(SDL_RWops *src, int freesrc, SDL_AudioSpec *spec, Uint8 **audio_buf, Uint32 *audio_len);
/** Compatibility convenience function -- loads a WAV from a file */
#define SDL_LoadWAV(file, spec, audio_buf, audio_len) \
SDL_LoadWAV_RW(SDL_RWFromFile(file, "rb"),1, spec,audio_buf,audio_len)
/**
* This function frees data previously allocated with SDL_LoadWAV_RW()
*/
extern DECLSPEC void SDLCALL SDL_FreeWAV(Uint8 *audio_buf);
/**
* This function takes a source format and rate and a destination format
* and rate, and initializes the 'cvt' structure with information needed
* by SDL_ConvertAudio() to convert a buffer of audio data from one format
* to the other.
*
* @return This function returns 0, or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_BuildAudioCVT(SDL_AudioCVT *cvt,
Uint16 src_format, Uint8 src_channels, int src_rate,
Uint16 dst_format, Uint8 dst_channels, int dst_rate);
/**
* Once you have initialized the 'cvt' structure using SDL_BuildAudioCVT(),
* created an audio buffer cvt->buf, and filled it with cvt->len bytes of
* audio data in the source format, this function will convert it in-place
* to the desired format.
* The data conversion may expand the size of the audio data, so the buffer
* cvt->buf should be allocated after the cvt structure is initialized by
* SDL_BuildAudioCVT(), and should be cvt->len*cvt->len_mult bytes long.
*/
extern DECLSPEC int SDLCALL SDL_ConvertAudio(SDL_AudioCVT *cvt);
#define SDL_MIX_MAXVOLUME 128
/**
* This takes two audio buffers of the playing audio format and mixes
* them, performing addition, volume adjustment, and overflow clipping.
* The volume ranges from 0 - 128, and should be set to SDL_MIX_MAXVOLUME
* for full audio volume. Note this does not change hardware volume.
* This is provided for convenience -- you can mix your own audio data.
*/
extern DECLSPEC void SDLCALL SDL_MixAudio(Uint8 *dst, const Uint8 *src, Uint32 len, int volume);
/**
* @name Audio Locks
* The lock manipulated by these functions protects the callback function.
* During a LockAudio/UnlockAudio pair, you can be guaranteed that the
* callback function is not running. Do not call these from the callback
* function or you will cause deadlock.
*/
/*@{*/
extern DECLSPEC void SDLCALL SDL_LockAudio(void);
extern DECLSPEC void SDLCALL SDL_UnlockAudio(void);
/*@}*/
/**
* This function shuts down audio processing and closes the audio device.
*/
extern DECLSPEC void SDLCALL SDL_CloseAudio(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_audio_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_byteorder.h
* @deprecated Use SDL_endian.h instead
*/
/* DEPRECATED */
#include "SDL_endian.h"

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_cdrom.h
* This is the CD-audio control API for Simple DirectMedia Layer
*/
#ifndef _SDL_cdrom_h
#define _SDL_cdrom_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file SDL_cdrom.h
* In order to use these functions, SDL_Init() must have been called
* with the SDL_INIT_CDROM flag. This causes SDL to scan the system
* for CD-ROM drives, and load appropriate drivers.
*/
/** The maximum number of CD-ROM tracks on a disk */
#define SDL_MAX_TRACKS 99
/** @name Track Types
* The types of CD-ROM track possible
*/
/*@{*/
#define SDL_AUDIO_TRACK 0x00
#define SDL_DATA_TRACK 0x04
/*@}*/
/** The possible states which a CD-ROM drive can be in. */
typedef enum {
CD_TRAYEMPTY,
CD_STOPPED,
CD_PLAYING,
CD_PAUSED,
CD_ERROR = -1
} CDstatus;
/** Given a status, returns true if there's a disk in the drive */
#define CD_INDRIVE(status) ((int)(status) > 0)
typedef struct SDL_CDtrack {
Uint8 id; /**< Track number */
Uint8 type; /**< Data or audio track */
Uint16 unused;
Uint32 length; /**< Length, in frames, of this track */
Uint32 offset; /**< Offset, in frames, from start of disk */
} SDL_CDtrack;
/** This structure is only current as of the last call to SDL_CDStatus() */
typedef struct SDL_CD {
int id; /**< Private drive identifier */
CDstatus status; /**< Current drive status */
/** The rest of this structure is only valid if there's a CD in drive */
/*@{*/
int numtracks; /**< Number of tracks on disk */
int cur_track; /**< Current track position */
int cur_frame; /**< Current frame offset within current track */
SDL_CDtrack track[SDL_MAX_TRACKS+1];
/*@}*/
} SDL_CD;
/** @name Frames / MSF Conversion Functions
* Conversion functions from frames to Minute/Second/Frames and vice versa
*/
/*@{*/
#define CD_FPS 75
#define FRAMES_TO_MSF(f, M,S,F) { \
int value = f; \
*(F) = value%CD_FPS; \
value /= CD_FPS; \
*(S) = value%60; \
value /= 60; \
*(M) = value; \
}
#define MSF_TO_FRAMES(M, S, F) ((M)*60*CD_FPS+(S)*CD_FPS+(F))
/*@}*/
/* CD-audio API functions: */
/**
* Returns the number of CD-ROM drives on the system, or -1 if
* SDL_Init() has not been called with the SDL_INIT_CDROM flag.
*/
extern DECLSPEC int SDLCALL SDL_CDNumDrives(void);
/**
* Returns a human-readable, system-dependent identifier for the CD-ROM.
* Example:
* - "/dev/cdrom"
* - "E:"
* - "/dev/disk/ide/1/master"
*/
extern DECLSPEC const char * SDLCALL SDL_CDName(int drive);
/**
* Opens a CD-ROM drive for access. It returns a drive handle on success,
* or NULL if the drive was invalid or busy. This newly opened CD-ROM
* becomes the default CD used when other CD functions are passed a NULL
* CD-ROM handle.
* Drives are numbered starting with 0. Drive 0 is the system default CD-ROM.
*/
extern DECLSPEC SDL_CD * SDLCALL SDL_CDOpen(int drive);
/**
* This function returns the current status of the given drive.
* If the drive has a CD in it, the table of contents of the CD and current
* play position of the CD will be stored in the SDL_CD structure.
*/
extern DECLSPEC CDstatus SDLCALL SDL_CDStatus(SDL_CD *cdrom);
/**
* Play the given CD starting at 'start_track' and 'start_frame' for 'ntracks'
* tracks and 'nframes' frames. If both 'ntrack' and 'nframe' are 0, play
* until the end of the CD. This function will skip data tracks.
* This function should only be called after calling SDL_CDStatus() to
* get track information about the CD.
* For example:
* @code
* // Play entire CD:
* if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
* SDL_CDPlayTracks(cdrom, 0, 0, 0, 0);
* // Play last track:
* if ( CD_INDRIVE(SDL_CDStatus(cdrom)) ) {
* SDL_CDPlayTracks(cdrom, cdrom->numtracks-1, 0, 0, 0);
* }
* // Play first and second track and 10 seconds of third track:
* if ( CD_INDRIVE(SDL_CDStatus(cdrom)) )
* SDL_CDPlayTracks(cdrom, 0, 0, 2, 10);
* @endcode
*
* @return This function returns 0, or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_CDPlayTracks(SDL_CD *cdrom,
int start_track, int start_frame, int ntracks, int nframes);
/**
* Play the given CD starting at 'start' frame for 'length' frames.
* @return It returns 0, or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_CDPlay(SDL_CD *cdrom, int start, int length);
/** Pause play
* @return returns 0, or -1 on error
*/
extern DECLSPEC int SDLCALL SDL_CDPause(SDL_CD *cdrom);
/** Resume play
* @return returns 0, or -1 on error
*/
extern DECLSPEC int SDLCALL SDL_CDResume(SDL_CD *cdrom);
/** Stop play
* @return returns 0, or -1 on error
*/
extern DECLSPEC int SDLCALL SDL_CDStop(SDL_CD *cdrom);
/** Eject CD-ROM
* @return returns 0, or -1 on error
*/
extern DECLSPEC int SDLCALL SDL_CDEject(SDL_CD *cdrom);
/** Closes the handle for the CD-ROM drive */
extern DECLSPEC void SDLCALL SDL_CDClose(SDL_CD *cdrom);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_video_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_h
#define _SDL_config_h
#include "SDL_platform.h"
/* Add any platform that doesn't build using the configure system */
#if defined(__DREAMCAST__)
#include "SDL_config_dreamcast.h"
#elif defined(__MACOS__)
#include "SDL_config_macos.h"
#elif defined(__MACOSX__)
#include "SDL_config_macosx.h"
#elif defined(__SYMBIAN32__)
#include "SDL_config_symbian.h" /* must be before win32! */
#elif defined(__WIN32__)
#include "SDL_config_win32.h"
#elif defined(__OS2__)
#include "SDL_config_os2.h"
#elif defined(ANDROID)
#include "SDL_config_android.h"
#else
#include "SDL_config_minimal.h"
#endif /* platform config */
#endif /* _SDL_config_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_h
#define _SDL_config_h
#include "SDL_platform.h"
/* Add any platform that doesn't build using the configure system */
#if defined(__DREAMCAST__)
#include "SDL_config_dreamcast.h"
#elif defined(__MACOS__)
#include "SDL_config_macos.h"
#elif defined(__MACOSX__)
#include "SDL_config_macosx.h"
#elif defined(__SYMBIAN32__)
#include "SDL_config_symbian.h" /* must be before win32! */
#elif defined(__WIN32__)
#include "SDL_config_win32.h"
#elif defined(__OS2__)
#include "SDL_config_os2.h"
#else
#include "SDL_config_minimal.h"
#endif /* platform config */
#endif /* _SDL_config_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_h
#define _SDL_config_h
/* This is a set of defines to configure the SDL features */
/* General platform specific identifiers */
#include "SDL_platform.h"
/* Make sure that this isn't included by Visual C++ */
#ifdef _MSC_VER
#error You should copy include/SDL_config.h.default to include/SDL_config.h
#endif
/* C language features */
#undef const
#undef inline
#undef volatile
/* C datatypes */
#undef size_t
#undef int8_t
#undef uint8_t
#undef int16_t
#undef uint16_t
#undef int32_t
#undef uint32_t
#undef int64_t
#undef uint64_t
#undef uintptr_t
#undef SDL_HAS_64BIT_TYPE
/* Endianness */
#undef SDL_BYTEORDER
/* Comment this if you want to build without any C library requirements */
#undef HAVE_LIBC
#if HAVE_LIBC
/* Useful headers */
#undef HAVE_ALLOCA_H
#undef HAVE_SYS_TYPES_H
#undef HAVE_STDIO_H
#undef STDC_HEADERS
#undef HAVE_STDLIB_H
#undef HAVE_STDARG_H
#undef HAVE_MALLOC_H
#undef HAVE_MEMORY_H
#undef HAVE_STRING_H
#undef HAVE_STRINGS_H
#undef HAVE_INTTYPES_H
#undef HAVE_STDINT_H
#undef HAVE_CTYPE_H
#undef HAVE_MATH_H
#undef HAVE_ICONV_H
#undef HAVE_SIGNAL_H
#undef HAVE_ALTIVEC_H
/* C library functions */
#undef HAVE_MALLOC
#undef HAVE_CALLOC
#undef HAVE_REALLOC
#undef HAVE_FREE
#undef HAVE_ALLOCA
#ifndef _WIN32 /* Don't use C runtime versions of these on Windows */
#undef HAVE_GETENV
#undef HAVE_PUTENV
#undef HAVE_UNSETENV
#endif
#undef HAVE_QSORT
#undef HAVE_ABS
#undef HAVE_BCOPY
#undef HAVE_MEMSET
#undef HAVE_MEMCPY
#undef HAVE_MEMMOVE
#undef HAVE_MEMCMP
#undef HAVE_STRLEN
#undef HAVE_STRLCPY
#undef HAVE_STRLCAT
#undef HAVE_STRDUP
#undef HAVE__STRREV
#undef HAVE__STRUPR
#undef HAVE__STRLWR
#undef HAVE_INDEX
#undef HAVE_RINDEX
#undef HAVE_STRCHR
#undef HAVE_STRRCHR
#undef HAVE_STRSTR
#undef HAVE_ITOA
#undef HAVE__LTOA
#undef HAVE__UITOA
#undef HAVE__ULTOA
#undef HAVE_STRTOL
#undef HAVE_STRTOUL
#undef HAVE__I64TOA
#undef HAVE__UI64TOA
#undef HAVE_STRTOLL
#undef HAVE_STRTOULL
#undef HAVE_STRTOD
#undef HAVE_ATOI
#undef HAVE_ATOF
#undef HAVE_STRCMP
#undef HAVE_STRNCMP
#undef HAVE__STRICMP
#undef HAVE_STRCASECMP
#undef HAVE__STRNICMP
#undef HAVE_STRNCASECMP
#undef HAVE_SSCANF
#undef HAVE_SNPRINTF
#undef HAVE_VSNPRINTF
#undef HAVE_ICONV
#undef HAVE_SIGACTION
#undef HAVE_SETJMP
#undef HAVE_NANOSLEEP
#undef HAVE_CLOCK_GETTIME
#undef HAVE_GETPAGESIZE
#undef HAVE_MPROTECT
#else
/* We may need some replacement for stdarg.h here */
#include <stdarg.h>
#endif /* HAVE_LIBC */
/* Allow disabling of core subsystems */
#undef SDL_AUDIO_DISABLED
#undef SDL_CDROM_DISABLED
#undef SDL_CPUINFO_DISABLED
#undef SDL_EVENTS_DISABLED
#undef SDL_FILE_DISABLED
#undef SDL_JOYSTICK_DISABLED
#undef SDL_LOADSO_DISABLED
#undef SDL_THREADS_DISABLED
#undef SDL_TIMERS_DISABLED
#undef SDL_VIDEO_DISABLED
/* Enable various audio drivers */
#undef SDL_AUDIO_DRIVER_ALSA
#undef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
#undef SDL_AUDIO_DRIVER_ARTS
#undef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
#undef SDL_AUDIO_DRIVER_BAUDIO
#undef SDL_AUDIO_DRIVER_BSD
#undef SDL_AUDIO_DRIVER_COREAUDIO
#undef SDL_AUDIO_DRIVER_DART
#undef SDL_AUDIO_DRIVER_DC
#undef SDL_AUDIO_DRIVER_DISK
#undef SDL_AUDIO_DRIVER_DUMMY
#undef SDL_AUDIO_DRIVER_DMEDIA
#undef SDL_AUDIO_DRIVER_DSOUND
#undef SDL_AUDIO_DRIVER_PULSE
#undef SDL_AUDIO_DRIVER_PULSE_DYNAMIC
#undef SDL_AUDIO_DRIVER_ESD
#undef SDL_AUDIO_DRIVER_ESD_DYNAMIC
#undef SDL_AUDIO_DRIVER_MINT
#undef SDL_AUDIO_DRIVER_MMEAUDIO
#undef SDL_AUDIO_DRIVER_NAS
#undef SDL_AUDIO_DRIVER_NAS_DYNAMIC
#undef SDL_AUDIO_DRIVER_OSS
#undef SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H
#undef SDL_AUDIO_DRIVER_PAUD
#undef SDL_AUDIO_DRIVER_QNXNTO
#undef SDL_AUDIO_DRIVER_SNDMGR
#undef SDL_AUDIO_DRIVER_SUNAUDIO
#undef SDL_AUDIO_DRIVER_WAVEOUT
/* Enable various cdrom drivers */
#undef SDL_CDROM_AIX
#undef SDL_CDROM_BEOS
#undef SDL_CDROM_BSDI
#undef SDL_CDROM_DC
#undef SDL_CDROM_DUMMY
#undef SDL_CDROM_FREEBSD
#undef SDL_CDROM_LINUX
#undef SDL_CDROM_MACOS
#undef SDL_CDROM_MACOSX
#undef SDL_CDROM_MINT
#undef SDL_CDROM_OPENBSD
#undef SDL_CDROM_OS2
#undef SDL_CDROM_OSF
#undef SDL_CDROM_QNX
#undef SDL_CDROM_WIN32
/* Enable various input drivers */
#undef SDL_INPUT_LINUXEV
#undef SDL_INPUT_TSLIB
#undef SDL_JOYSTICK_BEOS
#undef SDL_JOYSTICK_DC
#undef SDL_JOYSTICK_DUMMY
#undef SDL_JOYSTICK_IOKIT
#undef SDL_JOYSTICK_LINUX
#undef SDL_JOYSTICK_MACOS
#undef SDL_JOYSTICK_MINT
#undef SDL_JOYSTICK_OS2
#undef SDL_JOYSTICK_RISCOS
#undef SDL_JOYSTICK_WINMM
#undef SDL_JOYSTICK_USBHID
#undef SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H
/* Enable various shared object loading systems */
#undef SDL_LOADSO_BEOS
#undef SDL_LOADSO_DLCOMPAT
#undef SDL_LOADSO_DLOPEN
#undef SDL_LOADSO_DUMMY
#undef SDL_LOADSO_LDG
#undef SDL_LOADSO_MACOS
#undef SDL_LOADSO_OS2
#undef SDL_LOADSO_WIN32
/* Enable various threading systems */
#undef SDL_THREAD_BEOS
#undef SDL_THREAD_DC
#undef SDL_THREAD_OS2
#undef SDL_THREAD_PTH
#undef SDL_THREAD_PTHREAD
#undef SDL_THREAD_PTHREAD_RECURSIVE_MUTEX
#undef SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP
#undef SDL_THREAD_SPROC
#undef SDL_THREAD_WIN32
/* Enable various timer systems */
#undef SDL_TIMER_BEOS
#undef SDL_TIMER_DC
#undef SDL_TIMER_DUMMY
#undef SDL_TIMER_MACOS
#undef SDL_TIMER_MINT
#undef SDL_TIMER_OS2
#undef SDL_TIMER_RISCOS
#undef SDL_TIMER_UNIX
#undef SDL_TIMER_WIN32
#undef SDL_TIMER_WINCE
/* Enable various video drivers */
#undef SDL_VIDEO_DRIVER_AALIB
#undef SDL_VIDEO_DRIVER_BWINDOW
#undef SDL_VIDEO_DRIVER_CACA
#undef SDL_VIDEO_DRIVER_DC
#undef SDL_VIDEO_DRIVER_DDRAW
#undef SDL_VIDEO_DRIVER_DGA
#undef SDL_VIDEO_DRIVER_DIRECTFB
#undef SDL_VIDEO_DRIVER_DRAWSPROCKET
#undef SDL_VIDEO_DRIVER_DUMMY
#undef SDL_VIDEO_DRIVER_FBCON
#undef SDL_VIDEO_DRIVER_GAPI
#undef SDL_VIDEO_DRIVER_GEM
#undef SDL_VIDEO_DRIVER_GGI
#undef SDL_VIDEO_DRIVER_IPOD
#undef SDL_VIDEO_DRIVER_NANOX
#undef SDL_VIDEO_DRIVER_OS2FS
#undef SDL_VIDEO_DRIVER_PHOTON
#undef SDL_VIDEO_DRIVER_PICOGUI
#undef SDL_VIDEO_DRIVER_PS2GS
#undef SDL_VIDEO_DRIVER_PS3
#undef SDL_VIDEO_DRIVER_QTOPIA
#undef SDL_VIDEO_DRIVER_QUARTZ
#undef SDL_VIDEO_DRIVER_RISCOS
#undef SDL_VIDEO_DRIVER_SVGALIB
#undef SDL_VIDEO_DRIVER_TOOLBOX
#undef SDL_VIDEO_DRIVER_VGL
#undef SDL_VIDEO_DRIVER_WINDIB
#undef SDL_VIDEO_DRIVER_WSCONS
#undef SDL_VIDEO_DRIVER_X11
#undef SDL_VIDEO_DRIVER_X11_DGAMOUSE
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR
#undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER
#undef SDL_VIDEO_DRIVER_X11_VIDMODE
#undef SDL_VIDEO_DRIVER_X11_XINERAMA
#undef SDL_VIDEO_DRIVER_X11_XME
#undef SDL_VIDEO_DRIVER_X11_XRANDR
#undef SDL_VIDEO_DRIVER_X11_XV
#undef SDL_VIDEO_DRIVER_XBIOS
/* Enable OpenGL support */
#undef SDL_VIDEO_OPENGL
#undef SDL_VIDEO_OPENGL_GLX
#undef SDL_VIDEO_OPENGL_WGL
#undef SDL_VIDEO_OPENGL_OSMESA
#undef SDL_VIDEO_OPENGL_OSMESA_DYNAMIC
/* Disable screensaver */
#undef SDL_VIDEO_DISABLE_SCREENSAVER
/* Enable assembly routines */
#undef SDL_ASSEMBLY_ROUTINES
#undef SDL_HERMES_BLITTERS
#undef SDL_ALTIVEC_BLITTERS
#endif /* _SDL_config_h */

1
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../../sdl-1.3/include/SDL_config_android.h

106
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_dreamcast_h
#define _SDL_config_dreamcast_h
#include "SDL_platform.h"
/* This is a set of defines to configure the SDL features */
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
typedef unsigned long uintptr_t;
#define SDL_HAS_64BIT_TYPE 1
/* Useful headers */
#define HAVE_SYS_TYPES_H 1
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STRING_H 1
#define HAVE_CTYPE_H 1
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_GETENV 1
#define HAVE_PUTENV 1
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_BCOPY 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE_STRDUP 1
#define HAVE_INDEX 1
#define HAVE_RINDEX 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_STRTOL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE_STRICMP 1
#define HAVE_STRCASECMP 1
#define HAVE_SSCANF 1
#define HAVE_SNPRINTF 1
#define HAVE_VSNPRINTF 1
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_DC 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various cdrom drivers */
#define SDL_CDROM_DC 1
/* Enable various input drivers */
#define SDL_JOYSTICK_DC 1
/* Enable various shared object loading systems */
#define SDL_LOADSO_DUMMY 1
/* Enable various threading systems */
#define SDL_THREAD_DC 1
/* Enable various timer systems */
#define SDL_TIMER_DC 1
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_DC 1
#define SDL_VIDEO_DRIVER_DUMMY 1
#endif /* _SDL_config_dreamcast_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_macos_h
#define _SDL_config_macos_h
#include "SDL_platform.h"
/* This is a set of defines to configure the SDL features */
#include <MacTypes.h>
typedef SInt8 int8_t;
typedef UInt8 uint8_t;
typedef SInt16 int16_t;
typedef UInt16 uint16_t;
typedef SInt32 int32_t;
typedef UInt32 uint32_t;
typedef SInt64 int64_t;
typedef UInt64 uint64_t;
typedef unsigned long uintptr_t;
#define SDL_HAS_64BIT_TYPE 1
/* Useful headers */
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STRING_H 1
#define HAVE_CTYPE_H 1
#define HAVE_MATH_H 1
#define HAVE_SIGNAL_H 1
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_ABS 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_ITOA 1
#define HAVE_STRTOL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE_SSCANF 1
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_SNDMGR 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various cdrom drivers */
#if TARGET_API_MAC_CARBON
#define SDL_CDROM_DUMMY 1
#else
#define SDL_CDROM_MACOS 1
#endif
/* Enable various input drivers */
#if TARGET_API_MAC_CARBON
#define SDL_JOYSTICK_DUMMY 1
#else
#define SDL_JOYSTICK_MACOS 1
#endif
/* Enable various shared object loading systems */
#define SDL_LOADSO_MACOS 1
/* Enable various threading systems */
#define SDL_THREADS_DISABLED 1
/* Enable various timer systems */
#define SDL_TIMER_MACOS 1
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_DUMMY 1
#define SDL_VIDEO_DRIVER_DRAWSPROCKET 1
#define SDL_VIDEO_DRIVER_TOOLBOX 1
/* Enable OpenGL support */
#define SDL_VIDEO_OPENGL 1
#endif /* _SDL_config_macos_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_macosx_h
#define _SDL_config_macosx_h
#include "SDL_platform.h"
/* This gets us MAC_OS_X_VERSION_MIN_REQUIRED... */
#include <AvailabilityMacros.h>
/* This is a set of defines to configure the SDL features */
#define SDL_HAS_64BIT_TYPE 1
/* Useful headers */
/* If we specified an SDK or have a post-PowerPC chip, then alloca.h exists. */
#if ( (MAC_OS_X_VERSION_MIN_REQUIRED >= 1030) || (!defined(__POWERPC__)) )
#define HAVE_ALLOCA_H 1
#endif
#define HAVE_SYS_TYPES_H 1
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STRING_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_CTYPE_H 1
#define HAVE_MATH_H 1
#define HAVE_SIGNAL_H 1
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_GETENV 1
#define HAVE_PUTENV 1
#define HAVE_UNSETENV 1
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_BCOPY 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE_STRLCPY 1
#define HAVE_STRLCAT 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_STRTOL 1
#define HAVE_STRTOUL 1
#define HAVE_STRTOLL 1
#define HAVE_STRTOULL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE_STRCASECMP 1
#define HAVE_STRNCASECMP 1
#define HAVE_SSCANF 1
#define HAVE_SNPRINTF 1
#define HAVE_VSNPRINTF 1
#define HAVE_SIGACTION 1
#define HAVE_SETJMP 1
#define HAVE_NANOSLEEP 1
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_COREAUDIO 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various cdrom drivers */
#define SDL_CDROM_MACOSX 1
/* Enable various input drivers */
#define SDL_JOYSTICK_IOKIT 1
/* Enable various shared object loading systems */
#ifdef __ppc__
/* For Mac OS X 10.2 compatibility */
#define SDL_LOADSO_DLCOMPAT 1
#else
#define SDL_LOADSO_DLOPEN 1
#endif
/* Enable various threading systems */
#define SDL_THREAD_PTHREAD 1
#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX 1
/* Enable various timer systems */
#define SDL_TIMER_UNIX 1
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_DUMMY 1
#if ((defined TARGET_API_MAC_CARBON) && (TARGET_API_MAC_CARBON))
#define SDL_VIDEO_DRIVER_TOOLBOX 1
#else
#define SDL_VIDEO_DRIVER_QUARTZ 1
#endif
#define SDL_VIDEO_DRIVER_DGA 1
#define SDL_VIDEO_DRIVER_X11 1
#define SDL_VIDEO_DRIVER_X11_DGAMOUSE 1
#define SDL_VIDEO_DRIVER_X11_DYNAMIC "/usr/X11R6/lib/libX11.6.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT "/usr/X11R6/lib/libXext.6.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR "/usr/X11R6/lib/libXrandr.2.dylib"
#define SDL_VIDEO_DRIVER_X11_DYNAMIC_XRENDER "/usr/X11R6/lib/libXrender.1.dylib"
#define SDL_VIDEO_DRIVER_X11_VIDMODE 1
#define SDL_VIDEO_DRIVER_X11_XINERAMA 1
#define SDL_VIDEO_DRIVER_X11_XME 1
#define SDL_VIDEO_DRIVER_X11_XRANDR 1
#define SDL_VIDEO_DRIVER_X11_XV 1
/* Enable OpenGL support */
#define SDL_VIDEO_OPENGL 1
#define SDL_VIDEO_OPENGL_GLX 1
/* Disable screensaver */
#define SDL_VIDEO_DISABLE_SCREENSAVER 1
/* Enable assembly routines */
#define SDL_ASSEMBLY_ROUTINES 1
#ifdef __ppc__
#define SDL_ALTIVEC_BLITTERS 1
#endif
#endif /* _SDL_config_macosx_h */

62
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_minimal_h
#define _SDL_config_minimal_h
#include "SDL_platform.h"
/* This is the minimal configuration that can be used to build SDL */
#include <stdarg.h>
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef unsigned int size_t;
typedef unsigned long uintptr_t;
/* Enable the dummy audio driver (src/audio/dummy/\*.c) */
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable the stub cdrom driver (src/cdrom/dummy/\*.c) */
#define SDL_CDROM_DISABLED 1
/* Enable the stub joystick driver (src/joystick/dummy/\*.c) */
#define SDL_JOYSTICK_DISABLED 1
/* Enable the stub shared object loader (src/loadso/dummy/\*.c) */
#define SDL_LOADSO_DISABLED 1
/* Enable the stub thread support (src/thread/generic/\*.c) */
#define SDL_THREADS_DISABLED 1
/* Enable the stub timer support (src/timer/dummy/\*.c) */
#define SDL_TIMERS_DISABLED 1
/* Enable the dummy video driver (src/video/dummy/\*.c) */
#define SDL_VIDEO_DRIVER_DUMMY 1
#endif /* _SDL_config_minimal_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_nds_h
#define _SDL_config_nds_h
#include "SDL_platform.h"
/* This is a set of defines to configure the SDL features */
/* General platform specific identifiers */
#include "SDL_platform.h"
/* C datatypes */
#define SDL_HAS_64BIT_TYPE 1
/* Endianness */
#define SDL_BYTEORDER 1234
/* Useful headers */
#define HAVE_ALLOCA_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STDLIB_H 1
#define HAVE_STDARG_H 1
#define HAVE_MALLOC_H 1
#define HAVE_STRING_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_CTYPE_H 1
#define HAVE_MATH_H 1
#define HAVE_ICONV_H 1
#define HAVE_SIGNAL_H 1
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_GETENV 1
#define HAVE_PUTENV 1
#define HAVE_UNSETENV 1
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_BCOPY 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_STRLEN 1
#define HAVE_STRLCPY 1
#define HAVE_STRLCAT 1
#define HAVE_STRDUP 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_STRTOL 1
#define HAVE_STRTOUL 1
#define HAVE_STRTOLL 1
#define HAVE_STRTOULL 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE_STRCASECMP 1
#define HAVE_STRNCASECMP 1
#define HAVE_SSCANF 1
#define HAVE_SNPRINTF 1
#define HAVE_VSNPRINTF 1
#define HAVE_SETJMP 1
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_NDS 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable the stub cdrom driver (src/cdrom/dummy/\*.c) */
#define SDL_CDROM_DISABLED 1
/* Enable various input drivers */
#define SDL_JOYSTICK_NDS 1
/* Enable the stub shared object loader (src/loadso/dummy/\*.c) */
#define SDL_LOADSO_DISABLED 1
/* Enable the stub thread support (src/thread/generic/\*.c) */
#define SDL_THREADS_DISABLED 1
/* Enable various timer systems */
#define SDL_TIMER_NDS 1
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_NDS 1
#define SDL_VIDEO_DRIVER_DUMMY 1
#endif /* _SDL_config_nds_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_os2_h
#define _SDL_config_os2_h
#include "SDL_platform.h"
/* This is a set of defines to configure the SDL features */
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef unsigned int size_t;
typedef unsigned long uintptr_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
#define SDL_HAS_64BIT_TYPE 1
/* Use Watcom's LIBC */
#define HAVE_LIBC 1
/* Useful headers */
#define HAVE_SYS_TYPES_H 1
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STDLIB_H 1
#define HAVE_STDARG_H 1
#define HAVE_MALLOC_H 1
#define HAVE_MEMORY_H 1
#define HAVE_STRING_H 1
#define HAVE_STRINGS_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_CTYPE_H 1
#define HAVE_MATH_H 1
#define HAVE_SIGNAL_H 1
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_GETENV 1
#define HAVE_PUTENV 1
#define HAVE_UNSETENV 1
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_BCOPY 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE_STRLCPY 1
#define HAVE_STRLCAT 1
#define HAVE_STRDUP 1
#define HAVE__STRREV 1
#define HAVE__STRUPR 1
#define HAVE__STRLWR 1
#define HAVE_INDEX 1
#define HAVE_RINDEX 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_ITOA 1
#define HAVE__LTOA 1
#define HAVE__UITOA 1
#define HAVE__ULTOA 1
#define HAVE_STRTOL 1
#define HAVE__I64TOA 1
#define HAVE__UI64TOA 1
#define HAVE_STRTOLL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE_STRICMP 1
#define HAVE_STRCASECMP 1
#define HAVE_SSCANF 1
#define HAVE_SNPRINTF 1
#define HAVE_VSNPRINTF 1
#define HAVE_SETJMP 1
#define HAVE_CLOCK_GETTIME 1
/* Enable various audio drivers */
#define SDL_AUDIO_DRIVER_DART 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various cdrom drivers */
#define SDL_CDROM_OS2 1
/* Enable various input drivers */
#define SDL_JOYSTICK_OS2 1
/* Enable various shared object loading systems */
#define SDL_LOADSO_OS2 1
/* Enable various threading systems */
#define SDL_THREAD_OS2 1
/* Enable various timer systems */
#define SDL_TIMER_OS2 1
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_DUMMY 1
#define SDL_VIDEO_DRIVER_OS2FS 1
/* Enable OpenGL support */
/* Nothing here yet for OS/2... :( */
/* Enable assembly routines where available */
#define SDL_ASSEMBLY_ROUTINES 1
#endif /* _SDL_config_os2_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/*
Symbian version Markus Mertama
*/
#ifndef _SDL_CONFIG_SYMBIAN_H
#define _SDL_CONFIG_SYMBIAN_H
#include "SDL_platform.h"
/* This is the minimal configuration that can be used to build SDL */
#include <stdarg.h>
#include <stddef.h>
#ifdef __GCCE__
#define SYMBIAN32_GCCE
#endif
#ifndef _SIZE_T_DEFINED
typedef unsigned int size_t;
#endif
#ifndef _INTPTR_T_DECLARED
typedef unsigned int uintptr_t;
#endif
#ifndef _INT8_T_DECLARED
typedef signed char int8_t;
#endif
#ifndef _UINT8_T_DECLARED
typedef unsigned char uint8_t;
#endif
#ifndef _INT16_T_DECLARED
typedef signed short int16_t;
#endif
#ifndef _UINT16_T_DECLARED
typedef unsigned short uint16_t;
#endif
#ifndef _INT32_T_DECLARED
typedef signed int int32_t;
#endif
#ifndef _UINT32_T_DECLARED
typedef unsigned int uint32_t;
#endif
#ifndef _INT64_T_DECLARED
typedef signed long long int64_t;
#endif
#ifndef _UINT64_T_DECLARED
typedef unsigned long long uint64_t;
#endif
#define SDL_AUDIO_DRIVER_EPOCAUDIO 1
/* Enable the stub cdrom driver (src/cdrom/dummy/\*.c) */
#define SDL_CDROM_DISABLED 1
/* Enable the stub joystick driver (src/joystick/dummy/\*.c) */
#define SDL_JOYSTICK_DISABLED 1
/* Enable the stub shared object loader (src/loadso/dummy/\*.c) */
#define SDL_LOADSO_DISABLED 1
#define SDL_THREAD_SYMBIAN 1
#define SDL_VIDEO_DRIVER_EPOC 1
#define SDL_VIDEO_OPENGL 0
#define SDL_HAS_64BIT_TYPE 1
#define HAVE_LIBC 1
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STRING_H 1
#define HAVE_CTYPE_H 1
#define HAVE_MATH_H 1
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
/*#define HAVE_ALLOCA 1*/
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE__STRUPR 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_ITOA 1
#define HAVE_STRTOL 1
#define HAVE_STRTOUL 1
#define HAVE_STRTOLL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
/*#define HAVE__STRICMP 1*/
#define HAVE__STRNICMP 1
#define HAVE_SSCANF 1
#define HAVE_STDARG_H 1
#define HAVE_STDDEF_H 1
#endif /* _SDL_CONFIG_SYMBIAN_H */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_config_win32_h
#define _SDL_config_win32_h
#include "SDL_platform.h"
/* This is a set of defines to configure the SDL features */
#if defined(__GNUC__) || defined(__DMC__)
#define HAVE_STDINT_H 1
#elif defined(_MSC_VER)
typedef signed __int8 int8_t;
typedef unsigned __int8 uint8_t;
typedef signed __int16 int16_t;
typedef unsigned __int16 uint16_t;
typedef signed __int32 int32_t;
typedef unsigned __int32 uint32_t;
typedef signed __int64 int64_t;
typedef unsigned __int64 uint64_t;
#ifndef _UINTPTR_T_DEFINED
#ifdef _WIN64
typedef unsigned __int64 uintptr_t;
#else
typedef unsigned int uintptr_t;
#endif
#define _UINTPTR_T_DEFINED
#endif
/* Older Visual C++ headers don't have the Win64-compatible typedefs... */
#if ((_MSC_VER <= 1200) && (!defined(DWORD_PTR)))
#define DWORD_PTR DWORD
#endif
#if ((_MSC_VER <= 1200) && (!defined(LONG_PTR)))
#define LONG_PTR LONG
#endif
#else /* !__GNUC__ && !_MSC_VER */
typedef signed char int8_t;
typedef unsigned char uint8_t;
typedef signed short int16_t;
typedef unsigned short uint16_t;
typedef signed int int32_t;
typedef unsigned int uint32_t;
typedef signed long long int64_t;
typedef unsigned long long uint64_t;
#ifndef _SIZE_T_DEFINED_
#define _SIZE_T_DEFINED_
typedef unsigned int size_t;
#endif
typedef unsigned int uintptr_t;
#endif /* __GNUC__ || _MSC_VER */
#define SDL_HAS_64BIT_TYPE 1
/* Enabled for SDL 1.2 (binary compatibility) */
#define HAVE_LIBC 1
#ifdef HAVE_LIBC
/* Useful headers */
#define HAVE_STDIO_H 1
#define STDC_HEADERS 1
#define HAVE_STRING_H 1
#define HAVE_CTYPE_H 1
#define HAVE_MATH_H 1
#ifndef _WIN32_WCE
#define HAVE_SIGNAL_H 1
#endif
/* C library functions */
#define HAVE_MALLOC 1
#define HAVE_CALLOC 1
#define HAVE_REALLOC 1
#define HAVE_FREE 1
#define HAVE_ALLOCA 1
#define HAVE_QSORT 1
#define HAVE_ABS 1
#define HAVE_MEMSET 1
#define HAVE_MEMCPY 1
#define HAVE_MEMMOVE 1
#define HAVE_MEMCMP 1
#define HAVE_STRLEN 1
#define HAVE__STRREV 1
#define HAVE__STRUPR 1
#define HAVE__STRLWR 1
#define HAVE_STRCHR 1
#define HAVE_STRRCHR 1
#define HAVE_STRSTR 1
#define HAVE_ITOA 1
#define HAVE__LTOA 1
#define HAVE__ULTOA 1
#define HAVE_STRTOL 1
#define HAVE_STRTOUL 1
#define HAVE_STRTOLL 1
#define HAVE_STRTOD 1
#define HAVE_ATOI 1
#define HAVE_ATOF 1
#define HAVE_STRCMP 1
#define HAVE_STRNCMP 1
#define HAVE__STRICMP 1
#define HAVE__STRNICMP 1
#define HAVE_SSCANF 1
#else
#define HAVE_STDARG_H 1
#define HAVE_STDDEF_H 1
#endif
/* Enable various audio drivers */
#ifndef _WIN32_WCE
#define SDL_AUDIO_DRIVER_DSOUND 1
#endif
#define SDL_AUDIO_DRIVER_WAVEOUT 1
#define SDL_AUDIO_DRIVER_DISK 1
#define SDL_AUDIO_DRIVER_DUMMY 1
/* Enable various cdrom drivers */
#ifdef _WIN32_WCE
#define SDL_CDROM_DISABLED 1
#else
#define SDL_CDROM_WIN32 1
#endif
/* Enable various input drivers */
#ifdef _WIN32_WCE
#define SDL_JOYSTICK_DISABLED 1
#else
#define SDL_JOYSTICK_WINMM 1
#endif
/* Enable various shared object loading systems */
#define SDL_LOADSO_WIN32 1
/* Enable various threading systems */
#define SDL_THREAD_WIN32 1
/* Enable various timer systems */
#ifdef _WIN32_WCE
#define SDL_TIMER_WINCE 1
#else
#define SDL_TIMER_WIN32 1
#endif
/* Enable various video drivers */
#ifdef _WIN32_WCE
#define SDL_VIDEO_DRIVER_GAPI 1
#endif
#ifndef _WIN32_WCE
#define SDL_VIDEO_DRIVER_DDRAW 1
#endif
#define SDL_VIDEO_DRIVER_DUMMY 1
#define SDL_VIDEO_DRIVER_WINDIB 1
/* Enable OpenGL support */
#ifndef _WIN32_WCE
#define SDL_VIDEO_OPENGL 1
#define SDL_VIDEO_OPENGL_WGL 1
#endif
/* Disable screensaver */
#define SDL_VIDEO_DISABLE_SCREENSAVER 1
/* Enable assembly routines (Win64 doesn't have inline asm) */
#ifndef _WIN64
#define SDL_ASSEMBLY_ROUTINES 1
#endif
#endif /* _SDL_config_win32_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_cpuinfo.h
* CPU feature detection for SDL
*/
#ifndef _SDL_cpuinfo_h
#define _SDL_cpuinfo_h
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** This function returns true if the CPU has the RDTSC instruction */
extern DECLSPEC SDL_bool SDLCALL SDL_HasRDTSC(void);
/** This function returns true if the CPU has MMX features */
extern DECLSPEC SDL_bool SDLCALL SDL_HasMMX(void);
/** This function returns true if the CPU has MMX Ext. features */
extern DECLSPEC SDL_bool SDLCALL SDL_HasMMXExt(void);
/** This function returns true if the CPU has 3DNow features */
extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNow(void);
/** This function returns true if the CPU has 3DNow! Ext. features */
extern DECLSPEC SDL_bool SDLCALL SDL_Has3DNowExt(void);
/** This function returns true if the CPU has SSE features */
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE(void);
/** This function returns true if the CPU has SSE2 features */
extern DECLSPEC SDL_bool SDLCALL SDL_HasSSE2(void);
/** This function returns true if the CPU has AltiVec features */
extern DECLSPEC SDL_bool SDLCALL SDL_HasAltiVec(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_cpuinfo_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_endian.h
* Functions for reading and writing endian-specific values
*/
#ifndef _SDL_endian_h
#define _SDL_endian_h
#include "SDL_stdinc.h"
/** @name SDL_ENDIANs
* The two types of endianness
*/
/*@{*/
#define SDL_LIL_ENDIAN 1234
#define SDL_BIG_ENDIAN 4321
/*@}*/
#ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */
#if defined(__hppa__) || \
defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \
(defined(__MIPS__) && defined(__MISPEB__)) || \
defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \
defined(__sparc__)
#define SDL_BYTEORDER SDL_BIG_ENDIAN
#else
#define SDL_BYTEORDER SDL_LIL_ENDIAN
#endif
#endif /* !SDL_BYTEORDER */
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name SDL_Swap Functions
* Use inline functions for compilers that support them, and static
* functions for those that do not. Because these functions become
* static for compilers that do not support inline functions, this
* header should only be included in files that actually use them.
*/
/*@{*/
#if defined(__GNUC__) && defined(__i386__) && \
!(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
__asm__("xchgb %b0,%h0" : "=q" (x) : "0" (x));
return x;
}
#elif defined(__GNUC__) && defined(__x86_64__)
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
__asm__("xchgb %b0,%h0" : "=Q" (x) : "0" (x));
return x;
}
#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
Uint16 result;
__asm__("rlwimi %0,%2,8,16,23" : "=&r" (result) : "0" (x >> 8), "r" (x));
return result;
}
#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__)
static __inline__ Uint16 SDL_Swap16(Uint16 x)
{
__asm__("rorw #8,%0" : "=d" (x) : "0" (x) : "cc");
return x;
}
#else
static __inline__ Uint16 SDL_Swap16(Uint16 x) {
return SDL_static_cast(Uint16, ((x<<8)|(x>>8)));
}
#endif
#if defined(__GNUC__) && defined(__i386__) && \
!(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
__asm__("bswap %0" : "=r" (x) : "0" (x));
return x;
}
#elif defined(__GNUC__) && defined(__x86_64__)
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
__asm__("bswapl %0" : "=r" (x) : "0" (x));
return x;
}
#elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__))
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
Uint32 result;
__asm__("rlwimi %0,%2,24,16,23" : "=&r" (result) : "0" (x>>24), "r" (x));
__asm__("rlwimi %0,%2,8,8,15" : "=&r" (result) : "0" (result), "r" (x));
__asm__("rlwimi %0,%2,24,0,7" : "=&r" (result) : "0" (result), "r" (x));
return result;
}
#elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) && !defined(__mcoldfire__)
static __inline__ Uint32 SDL_Swap32(Uint32 x)
{
__asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0" : "=d" (x) : "0" (x) : "cc");
return x;
}
#else
static __inline__ Uint32 SDL_Swap32(Uint32 x) {
return SDL_static_cast(Uint32, ((x<<24)|((x<<8)&0x00FF0000)|((x>>8)&0x0000FF00)|(x>>24)));
}
#endif
#ifdef SDL_HAS_64BIT_TYPE
#if defined(__GNUC__) && defined(__i386__) && \
!(__GNUC__ == 2 && __GNUC_MINOR__ <= 95 /* broken gcc version */)
static __inline__ Uint64 SDL_Swap64(Uint64 x)
{
union {
struct { Uint32 a,b; } s;
Uint64 u;
} v;
v.u = x;
__asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
: "=r" (v.s.a), "=r" (v.s.b)
: "0" (v.s.a), "1" (v.s.b));
return v.u;
}
#elif defined(__GNUC__) && defined(__x86_64__)
static __inline__ Uint64 SDL_Swap64(Uint64 x)
{
__asm__("bswapq %0" : "=r" (x) : "0" (x));
return x;
}
#else
static __inline__ Uint64 SDL_Swap64(Uint64 x)
{
Uint32 hi, lo;
/* Separate into high and low 32-bit values and swap them */
lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
x >>= 32;
hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF);
x = SDL_Swap32(lo);
x <<= 32;
x |= SDL_Swap32(hi);
return (x);
}
#endif
#else
/* This is mainly to keep compilers from complaining in SDL code.
* If there is no real 64-bit datatype, then compilers will complain about
* the fake 64-bit datatype that SDL provides when it compiles user code.
*/
#define SDL_Swap64(X) (X)
#endif /* SDL_HAS_64BIT_TYPE */
/*@}*/
/**
* @name SDL_SwapLE and SDL_SwapBE Functions
* Byteswap item from the specified endianness to the native endianness
*/
/*@{*/
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
#define SDL_SwapLE16(X) (X)
#define SDL_SwapLE32(X) (X)
#define SDL_SwapLE64(X) (X)
#define SDL_SwapBE16(X) SDL_Swap16(X)
#define SDL_SwapBE32(X) SDL_Swap32(X)
#define SDL_SwapBE64(X) SDL_Swap64(X)
#else
#define SDL_SwapLE16(X) SDL_Swap16(X)
#define SDL_SwapLE32(X) SDL_Swap32(X)
#define SDL_SwapLE64(X) SDL_Swap64(X)
#define SDL_SwapBE16(X) (X)
#define SDL_SwapBE32(X) (X)
#define SDL_SwapBE64(X) (X)
#endif
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_endian_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_error.h
* Simple error message routines for SDL
*/
#ifndef _SDL_error_h
#define _SDL_error_h
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* @name Public functions
*/
/*@{*/
extern DECLSPEC void SDLCALL SDL_SetError(const char *fmt, ...);
extern DECLSPEC char * SDLCALL SDL_GetError(void);
extern DECLSPEC void SDLCALL SDL_ClearError(void);
/*@}*/
/**
* @name Private functions
* @internal Private error message function - used internally
*/
/*@{*/
#define SDL_OutOfMemory() SDL_Error(SDL_ENOMEM)
#define SDL_Unsupported() SDL_Error(SDL_UNSUPPORTED)
typedef enum {
SDL_ENOMEM,
SDL_EFREAD,
SDL_EFWRITE,
SDL_EFSEEK,
SDL_UNSUPPORTED,
SDL_LASTERROR
} SDL_errorcode;
extern DECLSPEC void SDLCALL SDL_Error(SDL_errorcode code);
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_error_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file SDL_events.h
* Include file for SDL event handling
*/
#ifndef _SDL_events_h
#define _SDL_events_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_active.h"
#include "SDL_keyboard.h"
#include "SDL_mouse.h"
#include "SDL_joystick.h"
#include "SDL_quit.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @name General keyboard/mouse state definitions */
/*@{*/
#define SDL_RELEASED 0
#define SDL_PRESSED 1
/*@}*/
/** Event enumerations */
typedef enum {
SDL_NOEVENT = 0, /**< Unused (do not remove) */
SDL_ACTIVEEVENT, /**< Application loses/gains visibility */
SDL_KEYDOWN, /**< Keys pressed */
SDL_KEYUP, /**< Keys released */
SDL_MOUSEMOTION, /**< Mouse moved */
SDL_MOUSEBUTTONDOWN, /**< Mouse button pressed */
SDL_MOUSEBUTTONUP, /**< Mouse button released */
SDL_JOYAXISMOTION, /**< Joystick axis motion */
SDL_JOYBALLMOTION, /**< Joystick trackball motion */
SDL_JOYHATMOTION, /**< Joystick hat position change */
SDL_JOYBUTTONDOWN, /**< Joystick button pressed */
SDL_JOYBUTTONUP, /**< Joystick button released */
SDL_QUIT, /**< User-requested quit */
SDL_SYSWMEVENT, /**< System specific event */
SDL_EVENT_RESERVEDA, /**< Reserved for future use.. */
SDL_EVENT_RESERVEDB, /**< Reserved for future use.. */
SDL_VIDEORESIZE, /**< User resized video mode */
SDL_VIDEOEXPOSE, /**< Screen needs to be redrawn */
SDL_EVENT_RESERVED2, /**< Reserved for future use.. */
SDL_EVENT_RESERVED3, /**< Reserved for future use.. */
SDL_EVENT_RESERVED4, /**< Reserved for future use.. */
SDL_EVENT_RESERVED5, /**< Reserved for future use.. */
SDL_EVENT_RESERVED6, /**< Reserved for future use.. */
SDL_EVENT_RESERVED7, /**< Reserved for future use.. */
/** Events SDL_USEREVENT through SDL_MAXEVENTS-1 are for your use */
SDL_USEREVENT = 24,
/** This last event is only for bounding internal arrays
* It is the number of bits in the event mask datatype -- Uint32
*/
SDL_NUMEVENTS = 32
} SDL_EventType;
/** @name Predefined event masks */
/*@{*/
#define SDL_EVENTMASK(X) (1<<(X))
typedef enum {
SDL_ACTIVEEVENTMASK = SDL_EVENTMASK(SDL_ACTIVEEVENT),
SDL_KEYDOWNMASK = SDL_EVENTMASK(SDL_KEYDOWN),
SDL_KEYUPMASK = SDL_EVENTMASK(SDL_KEYUP),
SDL_KEYEVENTMASK = SDL_EVENTMASK(SDL_KEYDOWN)|
SDL_EVENTMASK(SDL_KEYUP),
SDL_MOUSEMOTIONMASK = SDL_EVENTMASK(SDL_MOUSEMOTION),
SDL_MOUSEBUTTONDOWNMASK = SDL_EVENTMASK(SDL_MOUSEBUTTONDOWN),
SDL_MOUSEBUTTONUPMASK = SDL_EVENTMASK(SDL_MOUSEBUTTONUP),
SDL_MOUSEEVENTMASK = SDL_EVENTMASK(SDL_MOUSEMOTION)|
SDL_EVENTMASK(SDL_MOUSEBUTTONDOWN)|
SDL_EVENTMASK(SDL_MOUSEBUTTONUP),
SDL_JOYAXISMOTIONMASK = SDL_EVENTMASK(SDL_JOYAXISMOTION),
SDL_JOYBALLMOTIONMASK = SDL_EVENTMASK(SDL_JOYBALLMOTION),
SDL_JOYHATMOTIONMASK = SDL_EVENTMASK(SDL_JOYHATMOTION),
SDL_JOYBUTTONDOWNMASK = SDL_EVENTMASK(SDL_JOYBUTTONDOWN),
SDL_JOYBUTTONUPMASK = SDL_EVENTMASK(SDL_JOYBUTTONUP),
SDL_JOYEVENTMASK = SDL_EVENTMASK(SDL_JOYAXISMOTION)|
SDL_EVENTMASK(SDL_JOYBALLMOTION)|
SDL_EVENTMASK(SDL_JOYHATMOTION)|
SDL_EVENTMASK(SDL_JOYBUTTONDOWN)|
SDL_EVENTMASK(SDL_JOYBUTTONUP),
SDL_VIDEORESIZEMASK = SDL_EVENTMASK(SDL_VIDEORESIZE),
SDL_VIDEOEXPOSEMASK = SDL_EVENTMASK(SDL_VIDEOEXPOSE),
SDL_QUITMASK = SDL_EVENTMASK(SDL_QUIT),
SDL_SYSWMEVENTMASK = SDL_EVENTMASK(SDL_SYSWMEVENT)
} SDL_EventMask ;
#define SDL_ALLEVENTS 0xFFFFFFFF
/*@}*/
/** Application visibility event structure */
typedef struct SDL_ActiveEvent {
Uint8 type; /**< SDL_ACTIVEEVENT */
Uint8 gain; /**< Whether given states were gained or lost (1/0) */
Uint8 state; /**< A mask of the focus states */
} SDL_ActiveEvent;
/** Keyboard event structure */
typedef struct SDL_KeyboardEvent {
Uint8 type; /**< SDL_KEYDOWN or SDL_KEYUP */
Uint8 which; /**< The keyboard device index */
Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
SDL_keysym keysym;
} SDL_KeyboardEvent;
/** Mouse motion event structure */
typedef struct SDL_MouseMotionEvent {
Uint8 type; /**< SDL_MOUSEMOTION */
Uint8 which; /**< The mouse device index */
Uint8 state; /**< The current button state */
Uint16 x, y; /**< The X/Y coordinates of the mouse */
Sint16 xrel; /**< The relative motion in the X direction */
Sint16 yrel; /**< The relative motion in the Y direction */
} SDL_MouseMotionEvent;
/** Mouse button event structure */
typedef struct SDL_MouseButtonEvent {
Uint8 type; /**< SDL_MOUSEBUTTONDOWN or SDL_MOUSEBUTTONUP */
Uint8 which; /**< The mouse device index */
Uint8 button; /**< The mouse button index */
Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
Uint16 x, y; /**< The X/Y coordinates of the mouse at press time */
} SDL_MouseButtonEvent;
/** Joystick axis motion event structure */
typedef struct SDL_JoyAxisEvent {
Uint8 type; /**< SDL_JOYAXISMOTION */
Uint8 which; /**< The joystick device index */
Uint8 axis; /**< The joystick axis index */
Sint16 value; /**< The axis value (range: -32768 to 32767) */
} SDL_JoyAxisEvent;
/** Joystick trackball motion event structure */
typedef struct SDL_JoyBallEvent {
Uint8 type; /**< SDL_JOYBALLMOTION */
Uint8 which; /**< The joystick device index */
Uint8 ball; /**< The joystick trackball index */
Sint16 xrel; /**< The relative motion in the X direction */
Sint16 yrel; /**< The relative motion in the Y direction */
} SDL_JoyBallEvent;
/** Joystick hat position change event structure */
typedef struct SDL_JoyHatEvent {
Uint8 type; /**< SDL_JOYHATMOTION */
Uint8 which; /**< The joystick device index */
Uint8 hat; /**< The joystick hat index */
Uint8 value; /**< The hat position value:
* SDL_HAT_LEFTUP SDL_HAT_UP SDL_HAT_RIGHTUP
* SDL_HAT_LEFT SDL_HAT_CENTERED SDL_HAT_RIGHT
* SDL_HAT_LEFTDOWN SDL_HAT_DOWN SDL_HAT_RIGHTDOWN
* Note that zero means the POV is centered.
*/
} SDL_JoyHatEvent;
/** Joystick button event structure */
typedef struct SDL_JoyButtonEvent {
Uint8 type; /**< SDL_JOYBUTTONDOWN or SDL_JOYBUTTONUP */
Uint8 which; /**< The joystick device index */
Uint8 button; /**< The joystick button index */
Uint8 state; /**< SDL_PRESSED or SDL_RELEASED */
} SDL_JoyButtonEvent;
/** The "window resized" event
* When you get this event, you are responsible for setting a new video
* mode with the new width and height.
*/
typedef struct SDL_ResizeEvent {
Uint8 type; /**< SDL_VIDEORESIZE */
int w; /**< New width */
int h; /**< New height */
} SDL_ResizeEvent;
/** The "screen redraw" event */
typedef struct SDL_ExposeEvent {
Uint8 type; /**< SDL_VIDEOEXPOSE */
} SDL_ExposeEvent;
/** The "quit requested" event */
typedef struct SDL_QuitEvent {
Uint8 type; /**< SDL_QUIT */
} SDL_QuitEvent;
/** A user-defined event type */
typedef struct SDL_UserEvent {
Uint8 type; /**< SDL_USEREVENT through SDL_NUMEVENTS-1 */
int code; /**< User defined event code */
void *data1; /**< User defined data pointer */
void *data2; /**< User defined data pointer */
} SDL_UserEvent;
/** If you want to use this event, you should include SDL_syswm.h */
struct SDL_SysWMmsg;
typedef struct SDL_SysWMmsg SDL_SysWMmsg;
typedef struct SDL_SysWMEvent {
Uint8 type;
SDL_SysWMmsg *msg;
} SDL_SysWMEvent;
/** General event structure */
typedef union SDL_Event {
Uint8 type;
SDL_ActiveEvent active;
SDL_KeyboardEvent key;
SDL_MouseMotionEvent motion;
SDL_MouseButtonEvent button;
SDL_JoyAxisEvent jaxis;
SDL_JoyBallEvent jball;
SDL_JoyHatEvent jhat;
SDL_JoyButtonEvent jbutton;
SDL_ResizeEvent resize;
SDL_ExposeEvent expose;
SDL_QuitEvent quit;
SDL_UserEvent user;
SDL_SysWMEvent syswm;
} SDL_Event;
/* Function prototypes */
/** Pumps the event loop, gathering events from the input devices.
* This function updates the event queue and internal input device state.
* This should only be run in the thread that sets the video mode.
*/
extern DECLSPEC void SDLCALL SDL_PumpEvents(void);
typedef enum {
SDL_ADDEVENT,
SDL_PEEKEVENT,
SDL_GETEVENT
} SDL_eventaction;
/**
* Checks the event queue for messages and optionally returns them.
*
* If 'action' is SDL_ADDEVENT, up to 'numevents' events will be added to
* the back of the event queue.
* If 'action' is SDL_PEEKEVENT, up to 'numevents' events at the front
* of the event queue, matching 'mask', will be returned and will not
* be removed from the queue.
* If 'action' is SDL_GETEVENT, up to 'numevents' events at the front
* of the event queue, matching 'mask', will be returned and will be
* removed from the queue.
*
* @return
* This function returns the number of events actually stored, or -1
* if there was an error.
*
* This function is thread-safe.
*/
extern DECLSPEC int SDLCALL SDL_PeepEvents(SDL_Event *events, int numevents,
SDL_eventaction action, Uint32 mask);
/** Polls for currently pending events, and returns 1 if there are any pending
* events, or 0 if there are none available. If 'event' is not NULL, the next
* event is removed from the queue and stored in that area.
*/
extern DECLSPEC int SDLCALL SDL_PollEvent(SDL_Event *event);
/** Waits indefinitely for the next available event, returning 1, or 0 if there
* was an error while waiting for events. If 'event' is not NULL, the next
* event is removed from the queue and stored in that area.
*/
extern DECLSPEC int SDLCALL SDL_WaitEvent(SDL_Event *event);
/** Add an event to the event queue.
* This function returns 0 on success, or -1 if the event queue was full
* or there was some other error.
*/
extern DECLSPEC int SDLCALL SDL_PushEvent(SDL_Event *event);
/** @name Event Filtering */
/*@{*/
typedef int (SDLCALL *SDL_EventFilter)(const SDL_Event *event);
/**
* This function sets up a filter to process all events before they
* change internal state and are posted to the internal event queue.
*
* The filter is protypted as:
* @code typedef int (SDLCALL *SDL_EventFilter)(const SDL_Event *event); @endcode
*
* If the filter returns 1, then the event will be added to the internal queue.
* If it returns 0, then the event will be dropped from the queue, but the
* internal state will still be updated. This allows selective filtering of
* dynamically arriving events.
*
* @warning Be very careful of what you do in the event filter function, as
* it may run in a different thread!
*
* There is one caveat when dealing with the SDL_QUITEVENT event type. The
* event filter is only called when the window manager desires to close the
* application window. If the event filter returns 1, then the window will
* be closed, otherwise the window will remain open if possible.
* If the quit event is generated by an interrupt signal, it will bypass the
* internal queue and be delivered to the application at the next event poll.
*/
extern DECLSPEC void SDLCALL SDL_SetEventFilter(SDL_EventFilter filter);
/**
* Return the current event filter - can be used to "chain" filters.
* If there is no event filter set, this function returns NULL.
*/
extern DECLSPEC SDL_EventFilter SDLCALL SDL_GetEventFilter(void);
/*@}*/
/** @name Event State */
/*@{*/
#define SDL_QUERY -1
#define SDL_IGNORE 0
#define SDL_DISABLE 0
#define SDL_ENABLE 1
/*@}*/
/**
* This function allows you to set the state of processing certain events.
* If 'state' is set to SDL_IGNORE, that event will be automatically dropped
* from the event queue and will not event be filtered.
* If 'state' is set to SDL_ENABLE, that event will be processed normally.
* If 'state' is set to SDL_QUERY, SDL_EventState() will return the
* current processing state of the specified event.
*/
extern DECLSPEC Uint8 SDLCALL SDL_EventState(Uint8 type, int state);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_events_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_getenv.h
* @deprecated Use SDL_stdinc.h instead
*/
/* DEPRECATED */
#include "SDL_stdinc.h"

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_joystick.h
* Include file for SDL joystick event handling
*/
#ifndef _SDL_joystick_h
#define _SDL_joystick_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @file SDL_joystick.h
* @note In order to use these functions, SDL_Init() must have been called
* with the SDL_INIT_JOYSTICK flag. This causes SDL to scan the system
* for joysticks, and load appropriate drivers.
*/
/** The joystick structure used to identify an SDL joystick */
struct _SDL_Joystick;
typedef struct _SDL_Joystick SDL_Joystick;
/* Function prototypes */
/**
* Count the number of joysticks attached to the system
*/
extern DECLSPEC int SDLCALL SDL_NumJoysticks(void);
/**
* Get the implementation dependent name of a joystick.
*
* This can be called before any joysticks are opened.
* If no name can be found, this function returns NULL.
*/
extern DECLSPEC const char * SDLCALL SDL_JoystickName(int device_index);
/**
* Open a joystick for use.
*
* @param[in] device_index
* The index passed as an argument refers to
* the N'th joystick on the system. This index is the value which will
* identify this joystick in future joystick events.
*
* @return This function returns a joystick identifier, or NULL if an error occurred.
*/
extern DECLSPEC SDL_Joystick * SDLCALL SDL_JoystickOpen(int device_index);
/**
* Returns 1 if the joystick has been opened, or 0 if it has not.
*/
extern DECLSPEC int SDLCALL SDL_JoystickOpened(int device_index);
/**
* Get the device index of an opened joystick.
*/
extern DECLSPEC int SDLCALL SDL_JoystickIndex(SDL_Joystick *joystick);
/**
* Get the number of general axis controls on a joystick
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumAxes(SDL_Joystick *joystick);
/**
* Get the number of trackballs on a joystick
*
* Joystick trackballs have only relative motion events associated
* with them and their state cannot be polled.
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumBalls(SDL_Joystick *joystick);
/**
* Get the number of POV hats on a joystick
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumHats(SDL_Joystick *joystick);
/**
* Get the number of buttons on a joystick
*/
extern DECLSPEC int SDLCALL SDL_JoystickNumButtons(SDL_Joystick *joystick);
/**
* Update the current state of the open joysticks.
*
* This is called automatically by the event loop if any joystick
* events are enabled.
*/
extern DECLSPEC void SDLCALL SDL_JoystickUpdate(void);
/**
* Enable/disable joystick event polling.
*
* If joystick events are disabled, you must call SDL_JoystickUpdate()
* yourself and check the state of the joystick when you want joystick
* information.
*
* @param[in] state The state can be one of SDL_QUERY, SDL_ENABLE or SDL_IGNORE.
*/
extern DECLSPEC int SDLCALL SDL_JoystickEventState(int state);
/**
* Get the current state of an axis control on a joystick
*
* @param[in] axis The axis indices start at index 0.
*
* @return The state is a value ranging from -32768 to 32767.
*/
extern DECLSPEC Sint16 SDLCALL SDL_JoystickGetAxis(SDL_Joystick *joystick, int axis);
/**
* @name Hat Positions
* The return value of SDL_JoystickGetHat() is one of the following positions:
*/
/*@{*/
#define SDL_HAT_CENTERED 0x00
#define SDL_HAT_UP 0x01
#define SDL_HAT_RIGHT 0x02
#define SDL_HAT_DOWN 0x04
#define SDL_HAT_LEFT 0x08
#define SDL_HAT_RIGHTUP (SDL_HAT_RIGHT|SDL_HAT_UP)
#define SDL_HAT_RIGHTDOWN (SDL_HAT_RIGHT|SDL_HAT_DOWN)
#define SDL_HAT_LEFTUP (SDL_HAT_LEFT|SDL_HAT_UP)
#define SDL_HAT_LEFTDOWN (SDL_HAT_LEFT|SDL_HAT_DOWN)
/*@}*/
/**
* Get the current state of a POV hat on a joystick
*
* @param[in] hat The hat indices start at index 0.
*/
extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetHat(SDL_Joystick *joystick, int hat);
/**
* Get the ball axis change since the last poll
*
* @param[in] ball The ball indices start at index 0.
*
* @return This returns 0, or -1 if you passed it invalid parameters.
*/
extern DECLSPEC int SDLCALL SDL_JoystickGetBall(SDL_Joystick *joystick, int ball, int *dx, int *dy);
/**
* Get the current state of a button on a joystick
*
* @param[in] button The button indices start at index 0.
*/
extern DECLSPEC Uint8 SDLCALL SDL_JoystickGetButton(SDL_Joystick *joystick, int button);
/**
* Close a joystick previously opened with SDL_JoystickOpen()
*/
extern DECLSPEC void SDLCALL SDL_JoystickClose(SDL_Joystick *joystick);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_joystick_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_keyboard.h
* Include file for SDL keyboard event handling
*/
#ifndef _SDL_keyboard_h
#define _SDL_keyboard_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_keysym.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** Keysym structure
*
* - The scancode is hardware dependent, and should not be used by general
* applications. If no hardware scancode is available, it will be 0.
*
* - The 'unicode' translated character is only available when character
* translation is enabled by the SDL_EnableUNICODE() API. If non-zero,
* this is a UNICODE character corresponding to the keypress. If the
* high 9 bits of the character are 0, then this maps to the equivalent
* ASCII character:
* @code
* char ch;
* if ( (keysym.unicode & 0xFF80) == 0 ) {
* ch = keysym.unicode & 0x7F;
* } else {
* An international character..
* }
* @endcode
*/
typedef struct SDL_keysym {
Uint8 scancode; /**< hardware specific scancode */
SDLKey sym; /**< SDL virtual keysym */
SDLMod mod; /**< current key modifiers */
Uint16 unicode; /**< translated character */
} SDL_keysym;
/** This is the mask which refers to all hotkey bindings */
#define SDL_ALL_HOTKEYS 0xFFFFFFFF
/* Function prototypes */
/**
* Enable/Disable UNICODE translation of keyboard input.
*
* This translation has some overhead, so translation defaults off.
*
* @param[in] enable
* If 'enable' is 1, translation is enabled.
* If 'enable' is 0, translation is disabled.
* If 'enable' is -1, the translation state is not changed.
*
* @return It returns the previous state of keyboard translation.
*/
extern DECLSPEC int SDLCALL SDL_EnableUNICODE(int enable);
#define SDL_DEFAULT_REPEAT_DELAY 500
#define SDL_DEFAULT_REPEAT_INTERVAL 30
/**
* Enable/Disable keyboard repeat. Keyboard repeat defaults to off.
*
* @param[in] delay
* 'delay' is the initial delay in ms between the time when a key is
* pressed, and keyboard repeat begins.
*
* @param[in] interval
* 'interval' is the time in ms between keyboard repeat events.
*
* If 'delay' is set to 0, keyboard repeat is disabled.
*/
extern DECLSPEC int SDLCALL SDL_EnableKeyRepeat(int delay, int interval);
extern DECLSPEC void SDLCALL SDL_GetKeyRepeat(int *delay, int *interval);
/**
* Get a snapshot of the current state of the keyboard.
* Returns an array of keystates, indexed by the SDLK_* syms.
* Usage:
* @code
* Uint8 *keystate = SDL_GetKeyState(NULL);
* if ( keystate[SDLK_RETURN] ) //... \<RETURN> is pressed.
* @endcode
*/
extern DECLSPEC Uint8 * SDLCALL SDL_GetKeyState(int *numkeys);
/**
* Get the current key modifier state
*/
extern DECLSPEC SDLMod SDLCALL SDL_GetModState(void);
/**
* Set the current key modifier state.
* This does not change the keyboard state, only the key modifier flags.
*/
extern DECLSPEC void SDLCALL SDL_SetModState(SDLMod modstate);
/**
* Get the name of an SDL virtual keysym
*/
extern DECLSPEC char * SDLCALL SDL_GetKeyName(SDLKey key);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_keyboard_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_keysym_h
#define _SDL_keysym_h
/** What we really want is a mapping of every raw key on the keyboard.
* To support international keyboards, we use the range 0xA1 - 0xFF
* as international virtual keycodes. We'll follow in the footsteps of X11...
* @brief The names of the keys
*/
typedef enum {
/** @name ASCII mapped keysyms
* The keyboard syms have been cleverly chosen to map to ASCII
*/
/*@{*/
SDLK_UNKNOWN = 0,
SDLK_FIRST = 0,
SDLK_BACKSPACE = 8,
SDLK_TAB = 9,
SDLK_CLEAR = 12,
SDLK_RETURN = 13,
SDLK_PAUSE = 19,
SDLK_ESCAPE = 27,
SDLK_SPACE = 32,
SDLK_EXCLAIM = 33,
SDLK_QUOTEDBL = 34,
SDLK_HASH = 35,
SDLK_DOLLAR = 36,
SDLK_AMPERSAND = 38,
SDLK_QUOTE = 39,
SDLK_LEFTPAREN = 40,
SDLK_RIGHTPAREN = 41,
SDLK_ASTERISK = 42,
SDLK_PLUS = 43,
SDLK_COMMA = 44,
SDLK_MINUS = 45,
SDLK_PERIOD = 46,
SDLK_SLASH = 47,
SDLK_0 = 48,
SDLK_1 = 49,
SDLK_2 = 50,
SDLK_3 = 51,
SDLK_4 = 52,
SDLK_5 = 53,
SDLK_6 = 54,
SDLK_7 = 55,
SDLK_8 = 56,
SDLK_9 = 57,
SDLK_COLON = 58,
SDLK_SEMICOLON = 59,
SDLK_LESS = 60,
SDLK_EQUALS = 61,
SDLK_GREATER = 62,
SDLK_QUESTION = 63,
SDLK_AT = 64,
/*
Skip uppercase letters
*/
SDLK_LEFTBRACKET = 91,
SDLK_BACKSLASH = 92,
SDLK_RIGHTBRACKET = 93,
SDLK_CARET = 94,
SDLK_UNDERSCORE = 95,
SDLK_BACKQUOTE = 96,
SDLK_a = 97,
SDLK_b = 98,
SDLK_c = 99,
SDLK_d = 100,
SDLK_e = 101,
SDLK_f = 102,
SDLK_g = 103,
SDLK_h = 104,
SDLK_i = 105,
SDLK_j = 106,
SDLK_k = 107,
SDLK_l = 108,
SDLK_m = 109,
SDLK_n = 110,
SDLK_o = 111,
SDLK_p = 112,
SDLK_q = 113,
SDLK_r = 114,
SDLK_s = 115,
SDLK_t = 116,
SDLK_u = 117,
SDLK_v = 118,
SDLK_w = 119,
SDLK_x = 120,
SDLK_y = 121,
SDLK_z = 122,
SDLK_DELETE = 127,
/* End of ASCII mapped keysyms */
/*@}*/
/** @name International keyboard syms */
/*@{*/
SDLK_WORLD_0 = 160, /* 0xA0 */
SDLK_WORLD_1 = 161,
SDLK_WORLD_2 = 162,
SDLK_WORLD_3 = 163,
SDLK_WORLD_4 = 164,
SDLK_WORLD_5 = 165,
SDLK_WORLD_6 = 166,
SDLK_WORLD_7 = 167,
SDLK_WORLD_8 = 168,
SDLK_WORLD_9 = 169,
SDLK_WORLD_10 = 170,
SDLK_WORLD_11 = 171,
SDLK_WORLD_12 = 172,
SDLK_WORLD_13 = 173,
SDLK_WORLD_14 = 174,
SDLK_WORLD_15 = 175,
SDLK_WORLD_16 = 176,
SDLK_WORLD_17 = 177,
SDLK_WORLD_18 = 178,
SDLK_WORLD_19 = 179,
SDLK_WORLD_20 = 180,
SDLK_WORLD_21 = 181,
SDLK_WORLD_22 = 182,
SDLK_WORLD_23 = 183,
SDLK_WORLD_24 = 184,
SDLK_WORLD_25 = 185,
SDLK_WORLD_26 = 186,
SDLK_WORLD_27 = 187,
SDLK_WORLD_28 = 188,
SDLK_WORLD_29 = 189,
SDLK_WORLD_30 = 190,
SDLK_WORLD_31 = 191,
SDLK_WORLD_32 = 192,
SDLK_WORLD_33 = 193,
SDLK_WORLD_34 = 194,
SDLK_WORLD_35 = 195,
SDLK_WORLD_36 = 196,
SDLK_WORLD_37 = 197,
SDLK_WORLD_38 = 198,
SDLK_WORLD_39 = 199,
SDLK_WORLD_40 = 200,
SDLK_WORLD_41 = 201,
SDLK_WORLD_42 = 202,
SDLK_WORLD_43 = 203,
SDLK_WORLD_44 = 204,
SDLK_WORLD_45 = 205,
SDLK_WORLD_46 = 206,
SDLK_WORLD_47 = 207,
SDLK_WORLD_48 = 208,
SDLK_WORLD_49 = 209,
SDLK_WORLD_50 = 210,
SDLK_WORLD_51 = 211,
SDLK_WORLD_52 = 212,
SDLK_WORLD_53 = 213,
SDLK_WORLD_54 = 214,
SDLK_WORLD_55 = 215,
SDLK_WORLD_56 = 216,
SDLK_WORLD_57 = 217,
SDLK_WORLD_58 = 218,
SDLK_WORLD_59 = 219,
SDLK_WORLD_60 = 220,
SDLK_WORLD_61 = 221,
SDLK_WORLD_62 = 222,
SDLK_WORLD_63 = 223,
SDLK_WORLD_64 = 224,
SDLK_WORLD_65 = 225,
SDLK_WORLD_66 = 226,
SDLK_WORLD_67 = 227,
SDLK_WORLD_68 = 228,
SDLK_WORLD_69 = 229,
SDLK_WORLD_70 = 230,
SDLK_WORLD_71 = 231,
SDLK_WORLD_72 = 232,
SDLK_WORLD_73 = 233,
SDLK_WORLD_74 = 234,
SDLK_WORLD_75 = 235,
SDLK_WORLD_76 = 236,
SDLK_WORLD_77 = 237,
SDLK_WORLD_78 = 238,
SDLK_WORLD_79 = 239,
SDLK_WORLD_80 = 240,
SDLK_WORLD_81 = 241,
SDLK_WORLD_82 = 242,
SDLK_WORLD_83 = 243,
SDLK_WORLD_84 = 244,
SDLK_WORLD_85 = 245,
SDLK_WORLD_86 = 246,
SDLK_WORLD_87 = 247,
SDLK_WORLD_88 = 248,
SDLK_WORLD_89 = 249,
SDLK_WORLD_90 = 250,
SDLK_WORLD_91 = 251,
SDLK_WORLD_92 = 252,
SDLK_WORLD_93 = 253,
SDLK_WORLD_94 = 254,
SDLK_WORLD_95 = 255, /* 0xFF */
/*@}*/
/** @name Numeric keypad */
/*@{*/
SDLK_KP0 = 256,
SDLK_KP1 = 257,
SDLK_KP2 = 258,
SDLK_KP3 = 259,
SDLK_KP4 = 260,
SDLK_KP5 = 261,
SDLK_KP6 = 262,
SDLK_KP7 = 263,
SDLK_KP8 = 264,
SDLK_KP9 = 265,
SDLK_KP_PERIOD = 266,
SDLK_KP_DIVIDE = 267,
SDLK_KP_MULTIPLY = 268,
SDLK_KP_MINUS = 269,
SDLK_KP_PLUS = 270,
SDLK_KP_ENTER = 271,
SDLK_KP_EQUALS = 272,
/*@}*/
/** @name Arrows + Home/End pad */
/*@{*/
SDLK_UP = 273,
SDLK_DOWN = 274,
SDLK_RIGHT = 275,
SDLK_LEFT = 276,
SDLK_INSERT = 277,
SDLK_HOME = 278,
SDLK_END = 279,
SDLK_PAGEUP = 280,
SDLK_PAGEDOWN = 281,
/*@}*/
/** @name Function keys */
/*@{*/
SDLK_F1 = 282,
SDLK_F2 = 283,
SDLK_F3 = 284,
SDLK_F4 = 285,
SDLK_F5 = 286,
SDLK_F6 = 287,
SDLK_F7 = 288,
SDLK_F8 = 289,
SDLK_F9 = 290,
SDLK_F10 = 291,
SDLK_F11 = 292,
SDLK_F12 = 293,
SDLK_F13 = 294,
SDLK_F14 = 295,
SDLK_F15 = 296,
/*@}*/
/** @name Key state modifier keys */
/*@{*/
SDLK_NUMLOCK = 300,
SDLK_CAPSLOCK = 301,
SDLK_SCROLLOCK = 302,
SDLK_RSHIFT = 303,
SDLK_LSHIFT = 304,
SDLK_RCTRL = 305,
SDLK_LCTRL = 306,
SDLK_RALT = 307,
SDLK_LALT = 308,
SDLK_RMETA = 309,
SDLK_LMETA = 310,
SDLK_LSUPER = 311, /**< Left "Windows" key */
SDLK_RSUPER = 312, /**< Right "Windows" key */
SDLK_MODE = 313, /**< "Alt Gr" key */
SDLK_COMPOSE = 314, /**< Multi-key compose key */
/*@}*/
/** @name Miscellaneous function keys */
/*@{*/
SDLK_HELP = 315,
SDLK_PRINT = 316,
SDLK_SYSREQ = 317,
SDLK_BREAK = 318,
SDLK_MENU = 319,
SDLK_POWER = 320, /**< Power Macintosh power key */
SDLK_EURO = 321, /**< Some european keyboards */
SDLK_UNDO = 322, /**< Atari keyboard has Undo */
/*@}*/
/* Add any other keys here */
SDLK_LAST
} SDLKey;
/** Enumeration of valid key mods (possibly OR'd together) */
typedef enum {
KMOD_NONE = 0x0000,
KMOD_LSHIFT= 0x0001,
KMOD_RSHIFT= 0x0002,
KMOD_LCTRL = 0x0040,
KMOD_RCTRL = 0x0080,
KMOD_LALT = 0x0100,
KMOD_RALT = 0x0200,
KMOD_LMETA = 0x0400,
KMOD_RMETA = 0x0800,
KMOD_NUM = 0x1000,
KMOD_CAPS = 0x2000,
KMOD_MODE = 0x4000,
KMOD_RESERVED = 0x8000
} SDLMod;
#define KMOD_CTRL (KMOD_LCTRL|KMOD_RCTRL)
#define KMOD_SHIFT (KMOD_LSHIFT|KMOD_RSHIFT)
#define KMOD_ALT (KMOD_LALT|KMOD_RALT)
#define KMOD_META (KMOD_LMETA|KMOD_RMETA)
#endif /* _SDL_keysym_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_loadso.h
* System dependent library loading routines
*/
/** @file SDL_loadso.h
* Some things to keep in mind:
* - These functions only work on C function names. Other languages may
* have name mangling and intrinsic language support that varies from
* compiler to compiler.
* - Make sure you declare your function pointers with the same calling
* convention as the actual library function. Your code will crash
* mysteriously if you do not do this.
* - Avoid namespace collisions. If you load a symbol from the library,
* it is not defined whether or not it goes into the global symbol
* namespace for the application. If it does and it conflicts with
* symbols in your code or other shared libraries, you will not get
* the results you expect. :)
*/
#ifndef _SDL_loadso_h
#define _SDL_loadso_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/**
* This function dynamically loads a shared object and returns a pointer
* to the object handle (or NULL if there was an error).
* The 'sofile' parameter is a system dependent name of the object file.
*/
extern DECLSPEC void * SDLCALL SDL_LoadObject(const char *sofile);
/**
* Given an object handle, this function looks up the address of the
* named function in the shared object and returns it. This address
* is no longer valid after calling SDL_UnloadObject().
*/
extern DECLSPEC void * SDLCALL SDL_LoadFunction(void *handle, const char *name);
/** Unload a shared object from memory */
extern DECLSPEC void SDLCALL SDL_UnloadObject(void *handle);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_loadso_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_main_h
#define _SDL_main_h
#include "SDL_stdinc.h"
/** @file SDL_main.h
* Redefine main() on Win32 and MacOS so that it is called by winmain.c
*/
#if defined(__WIN32__) || \
(defined(__MWERKS__) && !defined(__BEOS__)) || \
defined(__MACOS__) || defined(__MACOSX__) || \
defined(__SYMBIAN32__) || defined(QWS)
#ifdef __cplusplus
#define C_LINKAGE "C"
#else
#define C_LINKAGE
#endif /* __cplusplus */
/** The application's main() function must be called with C linkage,
* and should be declared like this:
* @code
* #ifdef __cplusplus
* extern "C"
* #endif
* int main(int argc, char *argv[])
* {
* }
* @endcode
*/
#define main SDL_main
/** The prototype for the application's main() function */
extern C_LINKAGE int SDL_main(int argc, char *argv[]);
/** @name From the SDL library code -- needed for registering the app on Win32 */
/*@{*/
#ifdef __WIN32__
#include "begin_code.h"
#ifdef __cplusplus
extern "C" {
#endif
/** This should be called from your WinMain() function, if any */
extern DECLSPEC void SDLCALL SDL_SetModuleHandle(void *hInst);
/** This can also be called, but is no longer necessary */
extern DECLSPEC int SDLCALL SDL_RegisterApp(char *name, Uint32 style, void *hInst);
/** This can also be called, but is no longer necessary (SDL_Quit calls it) */
extern DECLSPEC void SDLCALL SDL_UnregisterApp(void);
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif
/*@}*/
/** @name From the SDL library code -- needed for registering QuickDraw on MacOS */
/*@{*/
#if defined(__MACOS__)
#include "begin_code.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Forward declaration so we don't need to include QuickDraw.h */
struct QDGlobals;
/** This should be called from your main() function, if any */
extern DECLSPEC void SDLCALL SDL_InitQuickDraw(struct QDGlobals *the_qd);
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif
/*@}*/
#endif /* Need to redefine main()? */
#endif /* _SDL_main_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_mouse.h
* Include file for SDL mouse event handling
*/
#ifndef _SDL_mouse_h
#define _SDL_mouse_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_video.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
typedef struct WMcursor WMcursor; /**< Implementation dependent */
typedef struct SDL_Cursor {
SDL_Rect area; /**< The area of the mouse cursor */
Sint16 hot_x, hot_y; /**< The "tip" of the cursor */
Uint8 *data; /**< B/W cursor data */
Uint8 *mask; /**< B/W cursor mask */
Uint8 *save[2]; /**< Place to save cursor area */
WMcursor *wm_cursor; /**< Window-manager cursor */
} SDL_Cursor;
/* Function prototypes */
/**
* Retrieve the current state of the mouse.
* The current button state is returned as a button bitmask, which can
* be tested using the SDL_BUTTON(X) macros, and x and y are set to the
* current mouse cursor position. You can pass NULL for either x or y.
*/
extern DECLSPEC Uint8 SDLCALL SDL_GetMouseState(int *x, int *y);
/**
* Retrieve the current state of the mouse.
* The current button state is returned as a button bitmask, which can
* be tested using the SDL_BUTTON(X) macros, and x and y are set to the
* mouse deltas since the last call to SDL_GetRelativeMouseState().
*/
extern DECLSPEC Uint8 SDLCALL SDL_GetRelativeMouseState(int *x, int *y);
/**
* Set the position of the mouse cursor (generates a mouse motion event)
*/
extern DECLSPEC void SDLCALL SDL_WarpMouse(Uint16 x, Uint16 y);
/**
* Create a cursor using the specified data and mask (in MSB format).
* The cursor width must be a multiple of 8 bits.
*
* The cursor is created in black and white according to the following:
* data mask resulting pixel on screen
* 0 1 White
* 1 1 Black
* 0 0 Transparent
* 1 0 Inverted color if possible, black if not.
*
* Cursors created with this function must be freed with SDL_FreeCursor().
*/
extern DECLSPEC SDL_Cursor * SDLCALL SDL_CreateCursor
(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y);
/**
* Set the currently active cursor to the specified one.
* If the cursor is currently visible, the change will be immediately
* represented on the display.
*/
extern DECLSPEC void SDLCALL SDL_SetCursor(SDL_Cursor *cursor);
/**
* Returns the currently active cursor.
*/
extern DECLSPEC SDL_Cursor * SDLCALL SDL_GetCursor(void);
/**
* Deallocates a cursor created with SDL_CreateCursor().
*/
extern DECLSPEC void SDLCALL SDL_FreeCursor(SDL_Cursor *cursor);
/**
* Toggle whether or not the cursor is shown on the screen.
* The cursor start off displayed, but can be turned off.
* SDL_ShowCursor() returns 1 if the cursor was being displayed
* before the call, or 0 if it was not. You can query the current
* state by passing a 'toggle' value of -1.
*/
extern DECLSPEC int SDLCALL SDL_ShowCursor(int toggle);
/*@{*/
/** Used as a mask when testing buttons in buttonstate
* Button 1: Left mouse button
* Button 2: Middle mouse button
* Button 3: Right mouse button
* Button 4: Mouse wheel up (may also be a real button)
* Button 5: Mouse wheel down (may also be a real button)
*/
#define SDL_BUTTON(X) (1 << ((X)-1))
#define SDL_BUTTON_LEFT 1
#define SDL_BUTTON_MIDDLE 2
#define SDL_BUTTON_RIGHT 3
#define SDL_BUTTON_WHEELUP 4
#define SDL_BUTTON_WHEELDOWN 5
#define SDL_BUTTON_X1 6
#define SDL_BUTTON_X2 7
#define SDL_BUTTON_LMASK SDL_BUTTON(SDL_BUTTON_LEFT)
#define SDL_BUTTON_MMASK SDL_BUTTON(SDL_BUTTON_MIDDLE)
#define SDL_BUTTON_RMASK SDL_BUTTON(SDL_BUTTON_RIGHT)
#define SDL_BUTTON_X1MASK SDL_BUTTON(SDL_BUTTON_X1)
#define SDL_BUTTON_X2MASK SDL_BUTTON(SDL_BUTTON_X2)
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_mouse_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_mutex_h
#define _SDL_mutex_h
/** @file SDL_mutex.h
* Functions to provide thread synchronization primitives
*
* @note These are independent of the other SDL routines.
*/
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** Synchronization functions which can time out return this value
* if they time out.
*/
#define SDL_MUTEX_TIMEDOUT 1
/** This is the timeout value which corresponds to never time out */
#define SDL_MUTEX_MAXWAIT (~(Uint32)0)
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** @name Mutex functions */ /*@{*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** The SDL mutex structure, defined in SDL_mutex.c */
struct SDL_mutex;
typedef struct SDL_mutex SDL_mutex;
/** Create a mutex, initialized unlocked */
extern DECLSPEC SDL_mutex * SDLCALL SDL_CreateMutex(void);
#define SDL_LockMutex(m) SDL_mutexP(m)
/** Lock the mutex
* @return 0, or -1 on error
*/
extern DECLSPEC int SDLCALL SDL_mutexP(SDL_mutex *mutex);
#define SDL_UnlockMutex(m) SDL_mutexV(m)
/** Unlock the mutex
* @return 0, or -1 on error
*
* It is an error to unlock a mutex that has not been locked by
* the current thread, and doing so results in undefined behavior.
*/
extern DECLSPEC int SDLCALL SDL_mutexV(SDL_mutex *mutex);
/** Destroy a mutex */
extern DECLSPEC void SDLCALL SDL_DestroyMutex(SDL_mutex *mutex);
/*@}*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** @name Semaphore functions */ /*@{*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** The SDL semaphore structure, defined in SDL_sem.c */
struct SDL_semaphore;
typedef struct SDL_semaphore SDL_sem;
/** Create a semaphore, initialized with value, returns NULL on failure. */
extern DECLSPEC SDL_sem * SDLCALL SDL_CreateSemaphore(Uint32 initial_value);
/** Destroy a semaphore */
extern DECLSPEC void SDLCALL SDL_DestroySemaphore(SDL_sem *sem);
/**
* This function suspends the calling thread until the semaphore pointed
* to by sem has a positive count. It then atomically decreases the semaphore
* count.
*/
extern DECLSPEC int SDLCALL SDL_SemWait(SDL_sem *sem);
/** Non-blocking variant of SDL_SemWait().
* @return 0 if the wait succeeds,
* SDL_MUTEX_TIMEDOUT if the wait would block, and -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_SemTryWait(SDL_sem *sem);
/** Variant of SDL_SemWait() with a timeout in milliseconds, returns 0 if
* the wait succeeds, SDL_MUTEX_TIMEDOUT if the wait does not succeed in
* the allotted time, and -1 on error.
*
* On some platforms this function is implemented by looping with a delay
* of 1 ms, and so should be avoided if possible.
*/
extern DECLSPEC int SDLCALL SDL_SemWaitTimeout(SDL_sem *sem, Uint32 ms);
/** Atomically increases the semaphore's count (not blocking).
* @return 0, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_SemPost(SDL_sem *sem);
/** Returns the current count of the semaphore */
extern DECLSPEC Uint32 SDLCALL SDL_SemValue(SDL_sem *sem);
/*@}*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** @name Condition_variable_functions */ /*@{*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*@{*/
/** The SDL condition variable structure, defined in SDL_cond.c */
struct SDL_cond;
typedef struct SDL_cond SDL_cond;
/*@}*/
/** Create a condition variable */
extern DECLSPEC SDL_cond * SDLCALL SDL_CreateCond(void);
/** Destroy a condition variable */
extern DECLSPEC void SDLCALL SDL_DestroyCond(SDL_cond *cond);
/** Restart one of the threads that are waiting on the condition variable,
* @return 0 or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_CondSignal(SDL_cond *cond);
/** Restart all threads that are waiting on the condition variable,
* @return 0 or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_CondBroadcast(SDL_cond *cond);
/** Wait on the condition variable, unlocking the provided mutex.
* The mutex must be locked before entering this function!
* The mutex is re-locked once the condition variable is signaled.
* @return 0 when it is signaled, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_CondWait(SDL_cond *cond, SDL_mutex *mut);
/** Waits for at most 'ms' milliseconds, and returns 0 if the condition
* variable is signaled, SDL_MUTEX_TIMEDOUT if the condition is not
* signaled in the allotted time, and -1 on error.
* On some platforms this function is implemented by looping with a delay
* of 1 ms, and so should be avoided if possible.
*/
extern DECLSPEC int SDLCALL SDL_CondWaitTimeout(SDL_cond *cond, SDL_mutex *mutex, Uint32 ms);
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_mutex_h */

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#ifndef _SDLname_h_
#define _SDLname_h_
#if defined(__STDC__) || defined(__cplusplus)
#define NeedFunctionPrototypes 1
#endif
#define SDL_NAME(X) SDL_##X
#endif /* _SDLname_h_ */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_platform.h
* Try to get a standard set of platform defines
*/
#ifndef _SDL_platform_h
#define _SDL_platform_h
#if defined(_AIX)
#undef __AIX__
#define __AIX__ 1
#endif
#if defined(__BEOS__)
#undef __BEOS__
#define __BEOS__ 1
#endif
#if defined(__HAIKU__)
#undef __HAIKU__
#define __HAIKU__ 1
#endif
#if defined(bsdi) || defined(__bsdi) || defined(__bsdi__)
#undef __BSDI__
#define __BSDI__ 1
#endif
#if defined(_arch_dreamcast)
#undef __DREAMCAST__
#define __DREAMCAST__ 1
#endif
#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
#undef __FREEBSD__
#define __FREEBSD__ 1
#endif
#if defined(__HAIKU__)
#undef __HAIKU__
#define __HAIKU__ 1
#endif
#if defined(hpux) || defined(__hpux) || defined(__hpux__)
#undef __HPUX__
#define __HPUX__ 1
#endif
#if defined(sgi) || defined(__sgi) || defined(__sgi__) || defined(_SGI_SOURCE)
#undef __IRIX__
#define __IRIX__ 1
#endif
#if defined(linux) || defined(__linux) || defined(__linux__)
#undef __LINUX__
#define __LINUX__ 1
#endif
#if defined(__APPLE__)
#undef __MACOSX__
#define __MACOSX__ 1
#elif defined(macintosh)
#undef __MACOS__
#define __MACOS__ 1
#endif
#if defined(__NetBSD__)
#undef __NETBSD__
#define __NETBSD__ 1
#endif
#if defined(__OpenBSD__)
#undef __OPENBSD__
#define __OPENBSD__ 1
#endif
#if defined(__OS2__)
#undef __OS2__
#define __OS2__ 1
#endif
#if defined(osf) || defined(__osf) || defined(__osf__) || defined(_OSF_SOURCE)
#undef __OSF__
#define __OSF__ 1
#endif
#if defined(__QNXNTO__)
#undef __QNXNTO__
#define __QNXNTO__ 1
#endif
#if defined(riscos) || defined(__riscos) || defined(__riscos__)
#undef __RISCOS__
#define __RISCOS__ 1
#endif
#if defined(__SVR4)
#undef __SOLARIS__
#define __SOLARIS__ 1
#endif
#if defined(WIN32) || defined(_WIN32)
#undef __WIN32__
#define __WIN32__ 1
#endif
#endif /* _SDL_platform_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_quit.h
* Include file for SDL quit event handling
*/
#ifndef _SDL_quit_h
#define _SDL_quit_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
/** @file SDL_quit.h
* An SDL_QUITEVENT is generated when the user tries to close the application
* window. If it is ignored or filtered out, the window will remain open.
* If it is not ignored or filtered, it is queued normally and the window
* is allowed to close. When the window is closed, screen updates will
* complete, but have no effect.
*
* SDL_Init() installs signal handlers for SIGINT (keyboard interrupt)
* and SIGTERM (system termination request), if handlers do not already
* exist, that generate SDL_QUITEVENT events as well. There is no way
* to determine the cause of an SDL_QUITEVENT, but setting a signal
* handler in your application will override the default generation of
* quit events for that signal.
*/
/** @file SDL_quit.h
* There are no functions directly affecting the quit event
*/
#define SDL_QuitRequested() \
(SDL_PumpEvents(), SDL_PeepEvents(NULL,0,SDL_PEEKEVENT,SDL_QUITMASK))
#endif /* _SDL_quit_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_rwops.h
* This file provides a general interface for SDL to read and write
* data sources. It can easily be extended to files, memory, etc.
*/
#ifndef _SDL_rwops_h
#define _SDL_rwops_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** This is the read/write operation structure -- very basic */
typedef struct SDL_RWops {
/** Seek to 'offset' relative to whence, one of stdio's whence values:
* SEEK_SET, SEEK_CUR, SEEK_END
* Returns the final offset in the data source.
*/
int (SDLCALL *seek)(struct SDL_RWops *context, int offset, int whence);
/** Read up to 'maxnum' objects each of size 'size' from the data
* source to the area pointed at by 'ptr'.
* Returns the number of objects read, or -1 if the read failed.
*/
int (SDLCALL *read)(struct SDL_RWops *context, void *ptr, int size, int maxnum);
/** Write exactly 'num' objects each of size 'objsize' from the area
* pointed at by 'ptr' to data source.
* Returns 'num', or -1 if the write failed.
*/
int (SDLCALL *write)(struct SDL_RWops *context, const void *ptr, int size, int num);
/** Close and free an allocated SDL_FSops structure */
int (SDLCALL *close)(struct SDL_RWops *context);
Uint32 type;
union {
#if defined(__WIN32__) && !defined(__SYMBIAN32__)
struct {
int append;
void *h;
struct {
void *data;
int size;
int left;
} buffer;
} win32io;
#endif
#ifdef HAVE_STDIO_H
struct {
int autoclose;
FILE *fp;
} stdio;
#endif
struct {
Uint8 *base;
Uint8 *here;
Uint8 *stop;
} mem;
struct {
void *data1;
} unknown;
} hidden;
} SDL_RWops;
/** @name Functions to create SDL_RWops structures from various data sources */
/*@{*/
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFile(const char *file, const char *mode);
#ifdef HAVE_STDIO_H
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromFP(FILE *fp, int autoclose);
#endif
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromMem(void *mem, int size);
extern DECLSPEC SDL_RWops * SDLCALL SDL_RWFromConstMem(const void *mem, int size);
extern DECLSPEC SDL_RWops * SDLCALL SDL_AllocRW(void);
extern DECLSPEC void SDLCALL SDL_FreeRW(SDL_RWops *area);
/*@}*/
/** @name Seek Reference Points */
/*@{*/
#define RW_SEEK_SET 0 /**< Seek from the beginning of data */
#define RW_SEEK_CUR 1 /**< Seek relative to current read point */
#define RW_SEEK_END 2 /**< Seek relative to the end of data */
/*@}*/
/** @name Macros to easily read and write from an SDL_RWops structure */
/*@{*/
#define SDL_RWseek(ctx, offset, whence) (ctx)->seek(ctx, offset, whence)
#define SDL_RWtell(ctx) (ctx)->seek(ctx, 0, RW_SEEK_CUR)
#define SDL_RWread(ctx, ptr, size, n) (ctx)->read(ctx, ptr, size, n)
#define SDL_RWwrite(ctx, ptr, size, n) (ctx)->write(ctx, ptr, size, n)
#define SDL_RWclose(ctx) (ctx)->close(ctx)
/*@}*/
/** @name Read an item of the specified endianness and return in native format */
/*@{*/
extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops *src);
extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops *src);
extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops *src);
extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops *src);
extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops *src);
extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops *src);
/*@}*/
/** @name Write an item of native format to the specified endianness */
/*@{*/
extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops *dst, Uint16 value);
extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops *dst, Uint16 value);
extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops *dst, Uint32 value);
extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops *dst, Uint32 value);
extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops *dst, Uint64 value);
extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops *dst, Uint64 value);
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_rwops_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_stdinc.h
* This is a general header that includes C language support
*/
#ifndef _SDL_stdinc_h
#define _SDL_stdinc_h
#include "SDL_config.h"
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_STDIO_H
#include <stdio.h>
#endif
#if defined(STDC_HEADERS)
# include <stdlib.h>
# include <stddef.h>
# include <stdarg.h>
#else
# if defined(HAVE_STDLIB_H)
# include <stdlib.h>
# elif defined(HAVE_MALLOC_H)
# include <malloc.h>
# endif
# if defined(HAVE_STDDEF_H)
# include <stddef.h>
# endif
# if defined(HAVE_STDARG_H)
# include <stdarg.h>
# endif
#endif
#ifdef HAVE_STRING_H
# if !defined(STDC_HEADERS) && defined(HAVE_MEMORY_H)
# include <memory.h>
# endif
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#if defined(HAVE_INTTYPES_H)
# include <inttypes.h>
#elif defined(HAVE_STDINT_H)
# include <stdint.h>
#endif
#ifdef HAVE_CTYPE_H
# include <ctype.h>
#endif
#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
# include <iconv.h>
#endif
/** The number of elements in an array */
#define SDL_arraysize(array) (sizeof(array)/sizeof(array[0]))
#define SDL_TABLESIZE(table) SDL_arraysize(table)
/* Use proper C++ casts when compiled as C++ to be compatible with the option
-Wold-style-cast of GCC (and -Werror=old-style-cast in GCC 4.2 and above. */
#ifdef __cplusplus
#define SDL_reinterpret_cast(type, expression) reinterpret_cast<type>(expression)
#define SDL_static_cast(type, expression) static_cast<type>(expression)
#else
#define SDL_reinterpret_cast(type, expression) ((type)(expression))
#define SDL_static_cast(type, expression) ((type)(expression))
#endif
/** @name Basic data types */
/*@{*/
typedef enum {
SDL_FALSE = 0,
SDL_TRUE = 1
} SDL_bool;
typedef int8_t Sint8;
typedef uint8_t Uint8;
typedef int16_t Sint16;
typedef uint16_t Uint16;
typedef int32_t Sint32;
typedef uint32_t Uint32;
#ifdef SDL_HAS_64BIT_TYPE
typedef int64_t Sint64;
#ifndef SYMBIAN32_GCCE
typedef uint64_t Uint64;
#endif
#else
/* This is really just a hack to prevent the compiler from complaining */
typedef struct {
Uint32 hi;
Uint32 lo;
} Uint64, Sint64;
#endif
/*@}*/
/** @name Make sure the types really have the right sizes */
/*@{*/
#define SDL_COMPILE_TIME_ASSERT(name, x) \
typedef int SDL_dummy_ ## name[(x) * 2 - 1]
SDL_COMPILE_TIME_ASSERT(uint8, sizeof(Uint8) == 1);
SDL_COMPILE_TIME_ASSERT(sint8, sizeof(Sint8) == 1);
SDL_COMPILE_TIME_ASSERT(uint16, sizeof(Uint16) == 2);
SDL_COMPILE_TIME_ASSERT(sint16, sizeof(Sint16) == 2);
SDL_COMPILE_TIME_ASSERT(uint32, sizeof(Uint32) == 4);
SDL_COMPILE_TIME_ASSERT(sint32, sizeof(Sint32) == 4);
SDL_COMPILE_TIME_ASSERT(uint64, sizeof(Uint64) == 8);
SDL_COMPILE_TIME_ASSERT(sint64, sizeof(Sint64) == 8);
/*@}*/
/** @name Enum Size Check
* Check to make sure enums are the size of ints, for structure packing.
* For both Watcom C/C++ and Borland C/C++ the compiler option that makes
* enums having the size of an int must be enabled.
* This is "-b" for Borland C/C++ and "-ei" for Watcom C/C++ (v11).
*/
/* Enable enums always int in CodeWarrior (for MPW use "-enum int") */
#ifdef __MWERKS__
#pragma enumsalwaysint on
#endif
typedef enum {
DUMMY_ENUM_VALUE
} SDL_DUMMY_ENUM;
#ifndef __NDS__
SDL_COMPILE_TIME_ASSERT(enum, sizeof(SDL_DUMMY_ENUM) == sizeof(int));
#endif
/*@}*/
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
#ifdef HAVE_MALLOC
#define SDL_malloc malloc
#else
extern DECLSPEC void * SDLCALL SDL_malloc(size_t size);
#endif
#ifdef HAVE_CALLOC
#define SDL_calloc calloc
#else
extern DECLSPEC void * SDLCALL SDL_calloc(size_t nmemb, size_t size);
#endif
#ifdef HAVE_REALLOC
#define SDL_realloc realloc
#else
extern DECLSPEC void * SDLCALL SDL_realloc(void *mem, size_t size);
#endif
#ifdef HAVE_FREE
#define SDL_free free
#else
extern DECLSPEC void SDLCALL SDL_free(void *mem);
#endif
#if defined(HAVE_ALLOCA) && !defined(alloca)
# if defined(HAVE_ALLOCA_H)
# include <alloca.h>
# elif defined(__GNUC__)
# define alloca __builtin_alloca
# elif defined(_MSC_VER)
# include <malloc.h>
# define alloca _alloca
# elif defined(__WATCOMC__)
# include <malloc.h>
# elif defined(__BORLANDC__)
# include <malloc.h>
# elif defined(__DMC__)
# include <stdlib.h>
# elif defined(__AIX__)
#pragma alloca
# elif defined(__MRC__)
void *alloca (unsigned);
# else
char *alloca ();
# endif
#endif
#ifdef HAVE_ALLOCA
#define SDL_stack_alloc(type, count) (type*)alloca(sizeof(type)*(count))
#define SDL_stack_free(data)
#else
#define SDL_stack_alloc(type, count) (type*)SDL_malloc(sizeof(type)*(count))
#define SDL_stack_free(data) SDL_free(data)
#endif
#ifdef HAVE_GETENV
#define SDL_getenv getenv
#else
extern DECLSPEC char * SDLCALL SDL_getenv(const char *name);
#endif
#ifdef HAVE_PUTENV
#define SDL_putenv putenv
#else
extern DECLSPEC int SDLCALL SDL_putenv(const char *variable);
#endif
#ifdef HAVE_QSORT
#define SDL_qsort qsort
#else
extern DECLSPEC void SDLCALL SDL_qsort(void *base, size_t nmemb, size_t size,
int (*compare)(const void *, const void *));
#endif
#ifdef HAVE_ABS
#define SDL_abs abs
#else
#define SDL_abs(X) ((X) < 0 ? -(X) : (X))
#endif
#define SDL_min(x, y) (((x) < (y)) ? (x) : (y))
#define SDL_max(x, y) (((x) > (y)) ? (x) : (y))
#ifdef HAVE_CTYPE_H
#define SDL_isdigit(X) isdigit(X)
#define SDL_isspace(X) isspace(X)
#define SDL_toupper(X) toupper(X)
#define SDL_tolower(X) tolower(X)
#else
#define SDL_isdigit(X) (((X) >= '0') && ((X) <= '9'))
#define SDL_isspace(X) (((X) == ' ') || ((X) == '\t') || ((X) == '\r') || ((X) == '\n'))
#define SDL_toupper(X) (((X) >= 'a') && ((X) <= 'z') ? ('A'+((X)-'a')) : (X))
#define SDL_tolower(X) (((X) >= 'A') && ((X) <= 'Z') ? ('a'+((X)-'A')) : (X))
#endif
#ifdef HAVE_MEMSET
#define SDL_memset memset
#else
extern DECLSPEC void * SDLCALL SDL_memset(void *dst, int c, size_t len);
#endif
#if defined(__GNUC__) && defined(i386)
#define SDL_memset4(dst, val, len) \
do { \
int u0, u1, u2; \
__asm__ __volatile__ ( \
"cld\n\t" \
"rep ; stosl\n\t" \
: "=&D" (u0), "=&a" (u1), "=&c" (u2) \
: "0" (dst), "1" (val), "2" (SDL_static_cast(Uint32, len)) \
: "memory" ); \
} while(0)
#endif
#ifndef SDL_memset4
#define SDL_memset4(dst, val, len) \
do { \
unsigned _count = (len); \
unsigned _n = (_count + 3) / 4; \
Uint32 *_p = SDL_static_cast(Uint32 *, dst); \
Uint32 _val = (val); \
if (len == 0) break; \
switch (_count % 4) { \
case 0: do { *_p++ = _val; \
case 3: *_p++ = _val; \
case 2: *_p++ = _val; \
case 1: *_p++ = _val; \
} while ( --_n ); \
} \
} while(0)
#endif
/* We can count on memcpy existing on Mac OS X and being well-tuned. */
#if defined(__MACH__) && defined(__APPLE__)
#define SDL_memcpy(dst, src, len) memcpy(dst, src, len)
#elif defined(__GNUC__) && defined(i386)
#define SDL_memcpy(dst, src, len) \
do { \
int u0, u1, u2; \
__asm__ __volatile__ ( \
"cld\n\t" \
"rep ; movsl\n\t" \
"testb $2,%b4\n\t" \
"je 1f\n\t" \
"movsw\n" \
"1:\ttestb $1,%b4\n\t" \
"je 2f\n\t" \
"movsb\n" \
"2:" \
: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
: "0" (SDL_static_cast(unsigned, len)/4), "q" (len), "1" (dst),"2" (src) \
: "memory" ); \
} while(0)
#endif
#ifndef SDL_memcpy
#ifdef HAVE_MEMCPY
#define SDL_memcpy memcpy
#elif defined(HAVE_BCOPY)
#define SDL_memcpy(d, s, n) bcopy((s), (d), (n))
#else
extern DECLSPEC void * SDLCALL SDL_memcpy(void *dst, const void *src, size_t len);
#endif
#endif
/* We can count on memcpy existing on Mac OS X and being well-tuned. */
#if defined(__MACH__) && defined(__APPLE__)
#define SDL_memcpy4(dst, src, len) memcpy(dst, src, (len)*4)
#elif defined(__GNUC__) && defined(i386)
#define SDL_memcpy4(dst, src, len) \
do { \
int ecx, edi, esi; \
__asm__ __volatile__ ( \
"cld\n\t" \
"rep ; movsl" \
: "=&c" (ecx), "=&D" (edi), "=&S" (esi) \
: "0" (SDL_static_cast(unsigned, len)), "1" (dst), "2" (src) \
: "memory" ); \
} while(0)
#endif
#ifndef SDL_memcpy4
#define SDL_memcpy4(dst, src, len) SDL_memcpy(dst, src, (len) << 2)
#endif
#if defined(__GNUC__) && defined(i386)
#define SDL_revcpy(dst, src, len) \
do { \
int u0, u1, u2; \
char *dstp = SDL_static_cast(char *, dst); \
char *srcp = SDL_static_cast(char *, src); \
int n = (len); \
if ( n >= 4 ) { \
__asm__ __volatile__ ( \
"std\n\t" \
"rep ; movsl\n\t" \
"cld\n\t" \
: "=&c" (u0), "=&D" (u1), "=&S" (u2) \
: "0" (n >> 2), \
"1" (dstp+(n-4)), "2" (srcp+(n-4)) \
: "memory" ); \
} \
switch (n & 3) { \
case 3: dstp[2] = srcp[2]; \
case 2: dstp[1] = srcp[1]; \
case 1: dstp[0] = srcp[0]; \
break; \
default: \
break; \
} \
} while(0)
#endif
#ifndef SDL_revcpy
extern DECLSPEC void * SDLCALL SDL_revcpy(void *dst, const void *src, size_t len);
#endif
#ifdef HAVE_MEMMOVE
#define SDL_memmove memmove
#elif defined(HAVE_BCOPY)
#define SDL_memmove(d, s, n) bcopy((s), (d), (n))
#else
#define SDL_memmove(dst, src, len) \
do { \
if ( dst < src ) { \
SDL_memcpy(dst, src, len); \
} else { \
SDL_revcpy(dst, src, len); \
} \
} while(0)
#endif
#ifdef HAVE_MEMCMP
#define SDL_memcmp memcmp
#else
extern DECLSPEC int SDLCALL SDL_memcmp(const void *s1, const void *s2, size_t len);
#endif
#ifdef HAVE_STRLEN
#define SDL_strlen strlen
#else
extern DECLSPEC size_t SDLCALL SDL_strlen(const char *string);
#endif
#ifdef HAVE_STRLCPY
#define SDL_strlcpy strlcpy
#else
extern DECLSPEC size_t SDLCALL SDL_strlcpy(char *dst, const char *src, size_t maxlen);
#endif
#ifdef HAVE_STRLCAT
#define SDL_strlcat strlcat
#else
extern DECLSPEC size_t SDLCALL SDL_strlcat(char *dst, const char *src, size_t maxlen);
#endif
#ifdef HAVE_STRDUP
#define SDL_strdup strdup
#else
extern DECLSPEC char * SDLCALL SDL_strdup(const char *string);
#endif
#ifdef HAVE__STRREV
#define SDL_strrev _strrev
#else
extern DECLSPEC char * SDLCALL SDL_strrev(char *string);
#endif
#ifdef HAVE__STRUPR
#define SDL_strupr _strupr
#else
extern DECLSPEC char * SDLCALL SDL_strupr(char *string);
#endif
#ifdef HAVE__STRLWR
#define SDL_strlwr _strlwr
#else
extern DECLSPEC char * SDLCALL SDL_strlwr(char *string);
#endif
#ifdef HAVE_STRCHR
#define SDL_strchr strchr
#elif defined(HAVE_INDEX)
#define SDL_strchr index
#else
extern DECLSPEC char * SDLCALL SDL_strchr(const char *string, int c);
#endif
#ifdef HAVE_STRRCHR
#define SDL_strrchr strrchr
#elif defined(HAVE_RINDEX)
#define SDL_strrchr rindex
#else
extern DECLSPEC char * SDLCALL SDL_strrchr(const char *string, int c);
#endif
#ifdef HAVE_STRSTR
#define SDL_strstr strstr
#else
extern DECLSPEC char * SDLCALL SDL_strstr(const char *haystack, const char *needle);
#endif
#ifdef HAVE_ITOA
#define SDL_itoa itoa
#else
#define SDL_itoa(value, string, radix) SDL_ltoa((long)value, string, radix)
#endif
#ifdef HAVE__LTOA
#define SDL_ltoa _ltoa
#else
extern DECLSPEC char * SDLCALL SDL_ltoa(long value, char *string, int radix);
#endif
#ifdef HAVE__UITOA
#define SDL_uitoa _uitoa
#else
#define SDL_uitoa(value, string, radix) SDL_ultoa((long)value, string, radix)
#endif
#ifdef HAVE__ULTOA
#define SDL_ultoa _ultoa
#else
extern DECLSPEC char * SDLCALL SDL_ultoa(unsigned long value, char *string, int radix);
#endif
#ifdef HAVE_STRTOL
#define SDL_strtol strtol
#else
extern DECLSPEC long SDLCALL SDL_strtol(const char *string, char **endp, int base);
#endif
#ifdef HAVE_STRTOUL
#define SDL_strtoul strtoul
#else
extern DECLSPEC unsigned long SDLCALL SDL_strtoul(const char *string, char **endp, int base);
#endif
#ifdef SDL_HAS_64BIT_TYPE
#ifdef HAVE__I64TOA
#define SDL_lltoa _i64toa
#else
extern DECLSPEC char* SDLCALL SDL_lltoa(Sint64 value, char *string, int radix);
#endif
#ifdef HAVE__UI64TOA
#define SDL_ulltoa _ui64toa
#else
extern DECLSPEC char* SDLCALL SDL_ulltoa(Uint64 value, char *string, int radix);
#endif
#ifdef HAVE_STRTOLL
#define SDL_strtoll strtoll
#else
extern DECLSPEC Sint64 SDLCALL SDL_strtoll(const char *string, char **endp, int base);
#endif
#ifdef HAVE_STRTOULL
#define SDL_strtoull strtoull
#else
extern DECLSPEC Uint64 SDLCALL SDL_strtoull(const char *string, char **endp, int base);
#endif
#endif /* SDL_HAS_64BIT_TYPE */
#ifdef HAVE_STRTOD
#define SDL_strtod strtod
#else
extern DECLSPEC double SDLCALL SDL_strtod(const char *string, char **endp);
#endif
#ifdef HAVE_ATOI
#define SDL_atoi atoi
#else
#define SDL_atoi(X) SDL_strtol(X, NULL, 0)
#endif
#ifdef HAVE_ATOF
#define SDL_atof atof
#else
#define SDL_atof(X) SDL_strtod(X, NULL)
#endif
#ifdef HAVE_STRCMP
#define SDL_strcmp strcmp
#else
extern DECLSPEC int SDLCALL SDL_strcmp(const char *str1, const char *str2);
#endif
#ifdef HAVE_STRNCMP
#define SDL_strncmp strncmp
#else
extern DECLSPEC int SDLCALL SDL_strncmp(const char *str1, const char *str2, size_t maxlen);
#endif
#ifdef HAVE_STRCASECMP
#define SDL_strcasecmp strcasecmp
#elif defined(HAVE__STRICMP)
#define SDL_strcasecmp _stricmp
#else
extern DECLSPEC int SDLCALL SDL_strcasecmp(const char *str1, const char *str2);
#endif
#ifdef HAVE_STRNCASECMP
#define SDL_strncasecmp strncasecmp
#elif defined(HAVE__STRNICMP)
#define SDL_strncasecmp _strnicmp
#else
extern DECLSPEC int SDLCALL SDL_strncasecmp(const char *str1, const char *str2, size_t maxlen);
#endif
#ifdef HAVE_SSCANF
#define SDL_sscanf sscanf
#else
extern DECLSPEC int SDLCALL SDL_sscanf(const char *text, const char *fmt, ...);
#endif
#ifdef HAVE_SNPRINTF
#define SDL_snprintf snprintf
#else
extern DECLSPEC int SDLCALL SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...);
#endif
#ifdef HAVE_VSNPRINTF
#define SDL_vsnprintf vsnprintf
#else
extern DECLSPEC int SDLCALL SDL_vsnprintf(char *text, size_t maxlen, const char *fmt, va_list ap);
#endif
/** @name SDL_ICONV Error Codes
* The SDL implementation of iconv() returns these error codes
*/
/*@{*/
#define SDL_ICONV_ERROR (size_t)-1
#define SDL_ICONV_E2BIG (size_t)-2
#define SDL_ICONV_EILSEQ (size_t)-3
#define SDL_ICONV_EINVAL (size_t)-4
/*@}*/
#if defined(HAVE_ICONV) && defined(HAVE_ICONV_H)
#define SDL_iconv_t iconv_t
#define SDL_iconv_open iconv_open
#define SDL_iconv_close iconv_close
#else
typedef struct _SDL_iconv_t *SDL_iconv_t;
extern DECLSPEC SDL_iconv_t SDLCALL SDL_iconv_open(const char *tocode, const char *fromcode);
extern DECLSPEC int SDLCALL SDL_iconv_close(SDL_iconv_t cd);
#endif
extern DECLSPEC size_t SDLCALL SDL_iconv(SDL_iconv_t cd, const char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
/** This function converts a string between encodings in one pass, returning a
* string that must be freed with SDL_free() or NULL on error.
*/
extern DECLSPEC char * SDLCALL SDL_iconv_string(const char *tocode, const char *fromcode, const char *inbuf, size_t inbytesleft);
#define SDL_iconv_utf8_locale(S) SDL_iconv_string("", "UTF-8", S, SDL_strlen(S)+1)
#define SDL_iconv_utf8_ucs2(S) (Uint16 *)SDL_iconv_string("UCS-2", "UTF-8", S, SDL_strlen(S)+1)
#define SDL_iconv_utf8_ucs4(S) (Uint32 *)SDL_iconv_string("UCS-4", "UTF-8", S, SDL_strlen(S)+1)
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_stdinc_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_syswm.h
* Include file for SDL custom system window manager hooks
*/
#ifndef _SDL_syswm_h
#define _SDL_syswm_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_version.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @file SDL_syswm.h
* Your application has access to a special type of event 'SDL_SYSWMEVENT',
* which contains window-manager specific information and arrives whenever
* an unhandled window event occurs. This event is ignored by default, but
* you can enable it with SDL_EventState()
*/
#ifdef SDL_PROTOTYPES_ONLY
struct SDL_SysWMinfo;
typedef struct SDL_SysWMinfo SDL_SysWMinfo;
#else
/* This is the structure for custom window manager events */
#if defined(SDL_VIDEO_DRIVER_X11)
#if defined(__APPLE__) && defined(__MACH__)
/* conflicts with Quickdraw.h */
#define Cursor X11Cursor
#endif
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#if defined(__APPLE__) && defined(__MACH__)
/* matches the re-define above */
#undef Cursor
#endif
/** These are the various supported subsystems under UNIX */
typedef enum {
SDL_SYSWM_X11
} SDL_SYSWM_TYPE;
/** The UNIX custom event structure */
struct SDL_SysWMmsg {
SDL_version version;
SDL_SYSWM_TYPE subsystem;
union {
XEvent xevent;
} event;
};
/** The UNIX custom window manager information structure.
* When this structure is returned, it holds information about which
* low level system it is using, and will be one of SDL_SYSWM_TYPE.
*/
typedef struct SDL_SysWMinfo {
SDL_version version;
SDL_SYSWM_TYPE subsystem;
union {
struct {
Display *display; /**< The X11 display */
Window window; /**< The X11 display window */
/** These locking functions should be called around
* any X11 functions using the display variable,
* but not the gfxdisplay variable.
* They lock the event thread, so should not be
* called around event functions or from event filters.
*/
/*@{*/
void (*lock_func)(void);
void (*unlock_func)(void);
/*@}*/
/** @name Introduced in SDL 1.0.2 */
/*@{*/
Window fswindow; /**< The X11 fullscreen window */
Window wmwindow; /**< The X11 managed input window */
/*@}*/
/** @name Introduced in SDL 1.2.12 */
/*@{*/
Display *gfxdisplay; /**< The X11 display to which rendering is done */
/*@}*/
} x11;
} info;
} SDL_SysWMinfo;
#elif defined(SDL_VIDEO_DRIVER_NANOX)
#include <microwin/nano-X.h>
/** The generic custom event structure */
struct SDL_SysWMmsg {
SDL_version version;
int data;
};
/** The windows custom window manager information structure */
typedef struct SDL_SysWMinfo {
SDL_version version ;
GR_WINDOW_ID window ; /* The display window */
} SDL_SysWMinfo;
#elif defined(SDL_VIDEO_DRIVER_WINDIB) || defined(SDL_VIDEO_DRIVER_DDRAW) || defined(SDL_VIDEO_DRIVER_GAPI)
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
/** The windows custom event structure */
struct SDL_SysWMmsg {
SDL_version version;
HWND hwnd; /**< The window for the message */
UINT msg; /**< The type of message */
WPARAM wParam; /**< WORD message parameter */
LPARAM lParam; /**< LONG message parameter */
};
/** The windows custom window manager information structure */
typedef struct SDL_SysWMinfo {
SDL_version version;
HWND window; /**< The Win32 display window */
HGLRC hglrc; /**< The OpenGL context, if any */
} SDL_SysWMinfo;
#elif defined(SDL_VIDEO_DRIVER_RISCOS)
/** RISC OS custom event structure */
struct SDL_SysWMmsg {
SDL_version version;
int eventCode; /**< The window for the message */
int pollBlock[64];
};
/** The RISC OS custom window manager information structure */
typedef struct SDL_SysWMinfo {
SDL_version version;
int wimpVersion; /**< Wimp version running under */
int taskHandle; /**< The RISC OS task handle */
int window; /**< The RISC OS display window */
} SDL_SysWMinfo;
#elif defined(SDL_VIDEO_DRIVER_PHOTON)
#include <sys/neutrino.h>
#include <Ph.h>
/** The QNX custom event structure */
struct SDL_SysWMmsg {
SDL_version version;
int data;
};
/** The QNX custom window manager information structure */
typedef struct SDL_SysWMinfo {
SDL_version version;
int data;
} SDL_SysWMinfo;
#else
/** The generic custom event structure */
struct SDL_SysWMmsg {
SDL_version version;
int data;
};
/** The generic custom window manager information structure */
typedef struct SDL_SysWMinfo {
SDL_version version;
int data;
} SDL_SysWMinfo;
#endif /* video driver type */
#endif /* SDL_PROTOTYPES_ONLY */
/* Function prototypes */
/**
* This function gives you custom hooks into the window manager information.
* It fills the structure pointed to by 'info' with custom information and
* returns 1 if the function is implemented. If it's not implemented, or
* the version member of the 'info' structure is invalid, it returns 0.
*
* You typically use this function like this:
* @code
* SDL_SysWMInfo info;
* SDL_VERSION(&info.version);
* if ( SDL_GetWMInfo(&info) ) { ... }
* @endcode
*/
extern DECLSPEC int SDLCALL SDL_GetWMInfo(SDL_SysWMinfo *info);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_syswm_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_thread_h
#define _SDL_thread_h
/** @file SDL_thread.h
* Header for the SDL thread management routines
*
* @note These are independent of the other SDL routines.
*/
#include "SDL_stdinc.h"
#include "SDL_error.h"
/* Thread synchronization primitives */
#include "SDL_mutex.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** The SDL thread structure, defined in SDL_thread.c */
struct SDL_Thread;
typedef struct SDL_Thread SDL_Thread;
/** Create a thread */
#if ((defined(__WIN32__) && !defined(HAVE_LIBC)) || defined(__OS2__)) && !defined(__SYMBIAN32__)
/**
* We compile SDL into a DLL on OS/2. This means, that it's the DLL which
* creates a new thread for the calling process with the SDL_CreateThread()
* API. There is a problem with this, that only the RTL of the SDL.DLL will
* be initialized for those threads, and not the RTL of the calling application!
* To solve this, we make a little hack here.
* We'll always use the caller's _beginthread() and _endthread() APIs to
* start a new thread. This way, if it's the SDL.DLL which uses this API,
* then the RTL of SDL.DLL will be used to create the new thread, and if it's
* the application, then the RTL of the application will be used.
* So, in short:
* Always use the _beginthread() and _endthread() of the calling runtime library!
*/
#define SDL_PASSED_BEGINTHREAD_ENDTHREAD
#ifndef _WIN32_WCE
#include <process.h> /* This has _beginthread() and _endthread() defined! */
#endif
#ifdef __OS2__
typedef int (*pfnSDL_CurrentBeginThread)(void (*func)(void *), void *, unsigned, void *arg);
typedef void (*pfnSDL_CurrentEndThread)(void);
#elif __GNUC__
typedef unsigned long (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned,
unsigned (__stdcall *func)(void *), void *arg,
unsigned, unsigned *threadID);
typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code);
#else
typedef uintptr_t (__cdecl *pfnSDL_CurrentBeginThread) (void *, unsigned,
unsigned (__stdcall *func)(void *), void *arg,
unsigned, unsigned *threadID);
typedef void (__cdecl *pfnSDL_CurrentEndThread)(unsigned code);
#endif
extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread);
#ifdef __OS2__
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread)
#elif defined(_WIN32_WCE)
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL)
#else
#define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex)
#endif
#else
extern DECLSPEC SDL_Thread * SDLCALL SDL_CreateThread(int (SDLCALL *fn)(void *), void *data);
#endif
/** Get the 32-bit thread identifier for the current thread */
extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void);
/** Get the 32-bit thread identifier for the specified thread,
* equivalent to SDL_ThreadID() if the specified thread is NULL.
*/
extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread *thread);
/** Wait for a thread to finish.
* The return code for the thread function is placed in the area
* pointed to by 'status', if 'status' is not NULL.
*/
extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread *thread, int *status);
/** Forcefully kill a thread without worrying about its state */
extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread *thread);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_thread_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#ifndef _SDL_timer_h
#define _SDL_timer_h
/** @file SDL_timer.h
* Header for the SDL time management routines
*/
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** This is the OS scheduler timeslice, in milliseconds */
#define SDL_TIMESLICE 10
/** This is the maximum resolution of the SDL timer on all platforms */
#define TIMER_RESOLUTION 10 /**< Experimentally determined */
/**
* Get the number of milliseconds since the SDL library initialization.
* Note that this value wraps if the program runs for more than ~49 days.
*/
extern DECLSPEC Uint32 SDLCALL SDL_GetTicks(void);
/** Wait a specified number of milliseconds before returning */
extern DECLSPEC void SDLCALL SDL_Delay(Uint32 ms);
/** Function prototype for the timer callback function */
typedef Uint32 (SDLCALL *SDL_TimerCallback)(Uint32 interval);
/**
* Set a callback to run after the specified number of milliseconds has
* elapsed. The callback function is passed the current timer interval
* and returns the next timer interval. If the returned value is the
* same as the one passed in, the periodic alarm continues, otherwise a
* new alarm is scheduled. If the callback returns 0, the periodic alarm
* is cancelled.
*
* To cancel a currently running timer, call SDL_SetTimer(0, NULL);
*
* The timer callback function may run in a different thread than your
* main code, and so shouldn't call any functions from within itself.
*
* The maximum resolution of this timer is 10 ms, which means that if
* you request a 16 ms timer, your callback will run approximately 20 ms
* later on an unloaded system. If you wanted to set a flag signaling
* a frame update at 30 frames per second (every 33 ms), you might set a
* timer for 30 ms:
* @code SDL_SetTimer((33/10)*10, flag_update); @endcode
*
* If you use this function, you need to pass SDL_INIT_TIMER to SDL_Init().
*
* Under UNIX, you should not use raise or use SIGALRM and this function
* in the same program, as it is implemented using setitimer(). You also
* should not use this function in multi-threaded applications as signals
* to multi-threaded apps have undefined behavior in some implementations.
*
* This function returns 0 if successful, or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_SetTimer(Uint32 interval, SDL_TimerCallback callback);
/** @name New timer API
* New timer API, supports multiple timers
* Written by Stephane Peter <megastep@lokigames.com>
*/
/*@{*/
/**
* Function prototype for the new timer callback function.
* The callback function is passed the current timer interval and returns
* the next timer interval. If the returned value is the same as the one
* passed in, the periodic alarm continues, otherwise a new alarm is
* scheduled. If the callback returns 0, the periodic alarm is cancelled.
*/
typedef Uint32 (SDLCALL *SDL_NewTimerCallback)(Uint32 interval, void *param);
/** Definition of the timer ID type */
typedef struct _SDL_TimerID *SDL_TimerID;
/** Add a new timer to the pool of timers already running.
* Returns a timer ID, or NULL when an error occurs.
*/
extern DECLSPEC SDL_TimerID SDLCALL SDL_AddTimer(Uint32 interval, SDL_NewTimerCallback callback, void *param);
/**
* Remove one of the multiple timers knowing its ID.
* Returns a boolean value indicating success.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_RemoveTimer(SDL_TimerID t);
/*@}*/
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_timer_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_types.h
* @deprecated Use SDL_stdinc.h instead.
*/
/* DEPRECATED */
#include "SDL_stdinc.h"

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_version.h
* This header defines the current SDL version
*/
#ifndef _SDL_version_h
#define _SDL_version_h
#include "SDL_stdinc.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @name Version Number
* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL
*/
/*@{*/
#define SDL_MAJOR_VERSION 1
#define SDL_MINOR_VERSION 2
#define SDL_PATCHLEVEL 14
/*@}*/
typedef struct SDL_version {
Uint8 major;
Uint8 minor;
Uint8 patch;
} SDL_version;
/**
* This macro can be used to fill a version structure with the compile-time
* version of the SDL library.
*/
#define SDL_VERSION(X) \
{ \
(X)->major = SDL_MAJOR_VERSION; \
(X)->minor = SDL_MINOR_VERSION; \
(X)->patch = SDL_PATCHLEVEL; \
}
/** This macro turns the version numbers into a numeric value:
* (1,2,3) -> (1203)
* This assumes that there will never be more than 100 patchlevels
*/
#define SDL_VERSIONNUM(X, Y, Z) \
((X)*1000 + (Y)*100 + (Z))
/** This is the version number macro for the current SDL version */
#define SDL_COMPILEDVERSION \
SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL)
/** This macro will evaluate to true if compiled with SDL at least X.Y.Z */
#define SDL_VERSION_ATLEAST(X, Y, Z) \
(SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z))
/** This function gets the version of the dynamically linked SDL library.
* it should NOT be used to fill a version structure, instead you should
* use the SDL_Version() macro.
*/
extern DECLSPEC const SDL_version * SDLCALL SDL_Linked_Version(void);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_version_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
/** @file SDL_video.h
* Header file for access to the SDL raw framebuffer window
*/
#ifndef _SDL_video_h
#define _SDL_video_h
#include "SDL_stdinc.h"
#include "SDL_error.h"
#include "SDL_rwops.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif
/** @name Transparency definitions
* These define alpha as the opacity of a surface
*/
/*@{*/
#define SDL_ALPHA_OPAQUE 255
#define SDL_ALPHA_TRANSPARENT 0
/*@}*/
/** @name Useful data types */
/*@{*/
typedef struct SDL_Rect {
Sint16 x, y;
Uint16 w, h;
} SDL_Rect;
typedef struct SDL_Color {
Uint8 r;
Uint8 g;
Uint8 b;
Uint8 unused;
} SDL_Color;
#define SDL_Colour SDL_Color
typedef struct SDL_Palette {
int ncolors;
SDL_Color *colors;
} SDL_Palette;
/*@}*/
/** Everything in the pixel format structure is read-only */
typedef struct SDL_PixelFormat {
SDL_Palette *palette;
Uint8 BitsPerPixel;
Uint8 BytesPerPixel;
Uint8 Rloss;
Uint8 Gloss;
Uint8 Bloss;
Uint8 Aloss;
Uint8 Rshift;
Uint8 Gshift;
Uint8 Bshift;
Uint8 Ashift;
Uint32 Rmask;
Uint32 Gmask;
Uint32 Bmask;
Uint32 Amask;
/** RGB color key information */
Uint32 colorkey;
/** Alpha value information (per-surface alpha) */
Uint8 alpha;
} SDL_PixelFormat;
/** This structure should be treated as read-only, except for 'pixels',
* which, if not NULL, contains the raw pixel data for the surface.
*/
typedef struct SDL_Surface {
Uint32 flags; /**< Read-only */
SDL_PixelFormat *format; /**< Read-only */
int w, h; /**< Read-only */
Uint16 pitch; /**< Read-only */
void *pixels; /**< Read-write */
int offset; /**< Private */
/** Hardware-specific surface info */
struct private_hwdata *hwdata;
/** clipping information */
SDL_Rect clip_rect; /**< Read-only */
Uint32 unused1; /**< for binary compatibility */
/** Allow recursive locks */
Uint32 locked; /**< Private */
/** info for fast blit mapping to other surfaces */
struct SDL_BlitMap *map; /**< Private */
/** format version, bumped at every change to invalidate blit maps */
unsigned int format_version; /**< Private */
/** Reference count -- used when freeing surface */
int refcount; /**< Read-mostly */
} SDL_Surface;
/** @name SDL_Surface Flags
* These are the currently supported flags for the SDL_surface
*/
/*@{*/
/** Available for SDL_CreateRGBSurface() or SDL_SetVideoMode() */
/*@{*/
#define SDL_SWSURFACE 0x00000000 /**< Surface is in system memory */
#define SDL_HWSURFACE 0x00000001 /**< Surface is in video memory */
#define SDL_ASYNCBLIT 0x00000004 /**< Use asynchronous blits if possible */
/*@}*/
/** Available for SDL_SetVideoMode() */
/*@{*/
#define SDL_ANYFORMAT 0x10000000 /**< Allow any video depth/pixel-format */
#define SDL_HWPALETTE 0x20000000 /**< Surface has exclusive palette */
#define SDL_DOUBLEBUF 0x40000000 /**< Set up double-buffered video mode */
#define SDL_FULLSCREEN 0x80000000 /**< Surface is a full screen display */
#define SDL_OPENGL 0x00000002 /**< Create an OpenGL rendering context */
#define SDL_OPENGLBLIT 0x0000000A /**< Create an OpenGL rendering context and use it for blitting */
#define SDL_RESIZABLE 0x00000010 /**< This video mode may be resized */
#define SDL_NOFRAME 0x00000020 /**< No window caption or edge frame */
/*@}*/
/** Used internally (read-only) */
/*@{*/
#define SDL_HWACCEL 0x00000100 /**< Blit uses hardware acceleration */
#define SDL_SRCCOLORKEY 0x00001000 /**< Blit uses a source color key */
#define SDL_RLEACCELOK 0x00002000 /**< Private flag */
#define SDL_RLEACCEL 0x00004000 /**< Surface is RLE encoded */
#define SDL_SRCALPHA 0x00010000 /**< Blit uses source alpha blending */
#define SDL_PREALLOC 0x01000000 /**< Surface uses preallocated memory */
/*@}*/
/*@}*/
/** Evaluates to true if the surface needs to be locked before access */
#define SDL_MUSTLOCK(surface) \
(surface->offset || \
((surface->flags & (SDL_HWSURFACE|SDL_ASYNCBLIT|SDL_RLEACCEL)) != 0))
/** typedef for private surface blitting functions */
typedef int (*SDL_blit)(struct SDL_Surface *src, SDL_Rect *srcrect,
struct SDL_Surface *dst, SDL_Rect *dstrect);
/** Useful for determining the video hardware capabilities */
typedef struct SDL_VideoInfo {
Uint32 hw_available :1; /**< Flag: Can you create hardware surfaces? */
Uint32 wm_available :1; /**< Flag: Can you talk to a window manager? */
Uint32 UnusedBits1 :6;
Uint32 UnusedBits2 :1;
Uint32 blit_hw :1; /**< Flag: Accelerated blits HW --> HW */
Uint32 blit_hw_CC :1; /**< Flag: Accelerated blits with Colorkey */
Uint32 blit_hw_A :1; /**< Flag: Accelerated blits with Alpha */
Uint32 blit_sw :1; /**< Flag: Accelerated blits SW --> HW */
Uint32 blit_sw_CC :1; /**< Flag: Accelerated blits with Colorkey */
Uint32 blit_sw_A :1; /**< Flag: Accelerated blits with Alpha */
Uint32 blit_fill :1; /**< Flag: Accelerated color fill */
Uint32 UnusedBits3 :16;
Uint32 video_mem; /**< The total amount of video memory (in K) */
SDL_PixelFormat *vfmt; /**< Value: The format of the video surface */
int current_w; /**< Value: The current video mode width */
int current_h; /**< Value: The current video mode height */
} SDL_VideoInfo;
/** @name Overlay Formats
* The most common video overlay formats.
* For an explanation of these pixel formats, see:
* http://www.webartz.com/fourcc/indexyuv.htm
*
* For information on the relationship between color spaces, see:
* http://www.neuro.sfc.keio.ac.jp/~aly/polygon/info/color-space-faq.html
*/
/*@{*/
#define SDL_YV12_OVERLAY 0x32315659 /**< Planar mode: Y + V + U (3 planes) */
#define SDL_IYUV_OVERLAY 0x56555949 /**< Planar mode: Y + U + V (3 planes) */
#define SDL_YUY2_OVERLAY 0x32595559 /**< Packed mode: Y0+U0+Y1+V0 (1 plane) */
#define SDL_UYVY_OVERLAY 0x59565955 /**< Packed mode: U0+Y0+V0+Y1 (1 plane) */
#define SDL_YVYU_OVERLAY 0x55595659 /**< Packed mode: Y0+V0+Y1+U0 (1 plane) */
/*@}*/
/** The YUV hardware video overlay */
typedef struct SDL_Overlay {
Uint32 format; /**< Read-only */
int w, h; /**< Read-only */
int planes; /**< Read-only */
Uint16 *pitches; /**< Read-only */
Uint8 **pixels; /**< Read-write */
/** @name Hardware-specific surface info */
/*@{*/
struct private_yuvhwfuncs *hwfuncs;
struct private_yuvhwdata *hwdata;
/*@{*/
/** @name Special flags */
/*@{*/
Uint32 hw_overlay :1; /**< Flag: This overlay hardware accelerated? */
Uint32 UnusedBits :31;
/*@}*/
} SDL_Overlay;
/** Public enumeration for setting the OpenGL window attributes. */
typedef enum {
SDL_GL_RED_SIZE,
SDL_GL_GREEN_SIZE,
SDL_GL_BLUE_SIZE,
SDL_GL_ALPHA_SIZE,
SDL_GL_BUFFER_SIZE,
SDL_GL_DOUBLEBUFFER,
SDL_GL_DEPTH_SIZE,
SDL_GL_STENCIL_SIZE,
SDL_GL_ACCUM_RED_SIZE,
SDL_GL_ACCUM_GREEN_SIZE,
SDL_GL_ACCUM_BLUE_SIZE,
SDL_GL_ACCUM_ALPHA_SIZE,
SDL_GL_STEREO,
SDL_GL_MULTISAMPLEBUFFERS,
SDL_GL_MULTISAMPLESAMPLES,
SDL_GL_ACCELERATED_VISUAL,
SDL_GL_SWAP_CONTROL
} SDL_GLattr;
/** @name flags for SDL_SetPalette() */
/*@{*/
#define SDL_LOGPAL 0x01
#define SDL_PHYSPAL 0x02
/*@}*/
/* Function prototypes */
/**
* @name Video Init and Quit
* These functions are used internally, and should not be used unless you
* have a specific need to specify the video driver you want to use.
* You should normally use SDL_Init() or SDL_InitSubSystem().
*/
/*@{*/
/**
* Initializes the video subsystem. Sets up a connection
* to the window manager, etc, and determines the current video mode and
* pixel format, but does not initialize a window or graphics mode.
* Note that event handling is activated by this routine.
*
* If you use both sound and video in your application, you need to call
* SDL_Init() before opening the sound device, otherwise under Win32 DirectX,
* you won't be able to set full-screen display modes.
*/
extern DECLSPEC int SDLCALL SDL_VideoInit(const char *driver_name, Uint32 flags);
extern DECLSPEC void SDLCALL SDL_VideoQuit(void);
/*@}*/
/**
* This function fills the given character buffer with the name of the
* video driver, and returns a pointer to it if the video driver has
* been initialized. It returns NULL if no driver has been initialized.
*/
extern DECLSPEC char * SDLCALL SDL_VideoDriverName(char *namebuf, int maxlen);
/**
* This function returns a pointer to the current display surface.
* If SDL is doing format conversion on the display surface, this
* function returns the publicly visible surface, not the real video
* surface.
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_GetVideoSurface(void);
/**
* This function returns a read-only pointer to information about the
* video hardware. If this is called before SDL_SetVideoMode(), the 'vfmt'
* member of the returned structure will contain the pixel format of the
* "best" video mode.
*/
extern DECLSPEC const SDL_VideoInfo * SDLCALL SDL_GetVideoInfo(void);
/**
* Check to see if a particular video mode is supported.
* It returns 0 if the requested mode is not supported under any bit depth,
* or returns the bits-per-pixel of the closest available mode with the
* given width and height. If this bits-per-pixel is different from the
* one used when setting the video mode, SDL_SetVideoMode() will succeed,
* but will emulate the requested bits-per-pixel with a shadow surface.
*
* The arguments to SDL_VideoModeOK() are the same ones you would pass to
* SDL_SetVideoMode()
*/
extern DECLSPEC int SDLCALL SDL_VideoModeOK(int width, int height, int bpp, Uint32 flags);
/**
* Return a pointer to an array of available screen dimensions for the
* given format and video flags, sorted largest to smallest. Returns
* NULL if there are no dimensions available for a particular format,
* or (SDL_Rect **)-1 if any dimension is okay for the given format.
*
* If 'format' is NULL, the mode list will be for the format given
* by SDL_GetVideoInfo()->vfmt
*/
extern DECLSPEC SDL_Rect ** SDLCALL SDL_ListModes(SDL_PixelFormat *format, Uint32 flags);
/**
* Set up a video mode with the specified width, height and bits-per-pixel.
*
* If 'bpp' is 0, it is treated as the current display bits per pixel.
*
* If SDL_ANYFORMAT is set in 'flags', the SDL library will try to set the
* requested bits-per-pixel, but will return whatever video pixel format is
* available. The default is to emulate the requested pixel format if it
* is not natively available.
*
* If SDL_HWSURFACE is set in 'flags', the video surface will be placed in
* video memory, if possible, and you may have to call SDL_LockSurface()
* in order to access the raw framebuffer. Otherwise, the video surface
* will be created in system memory.
*
* If SDL_ASYNCBLIT is set in 'flags', SDL will try to perform rectangle
* updates asynchronously, but you must always lock before accessing pixels.
* SDL will wait for updates to complete before returning from the lock.
*
* If SDL_HWPALETTE is set in 'flags', the SDL library will guarantee
* that the colors set by SDL_SetColors() will be the colors you get.
* Otherwise, in 8-bit mode, SDL_SetColors() may not be able to set all
* of the colors exactly the way they are requested, and you should look
* at the video surface structure to determine the actual palette.
* If SDL cannot guarantee that the colors you request can be set,
* i.e. if the colormap is shared, then the video surface may be created
* under emulation in system memory, overriding the SDL_HWSURFACE flag.
*
* If SDL_FULLSCREEN is set in 'flags', the SDL library will try to set
* a fullscreen video mode. The default is to create a windowed mode
* if the current graphics system has a window manager.
* If the SDL library is able to set a fullscreen video mode, this flag
* will be set in the surface that is returned.
*
* If SDL_DOUBLEBUF is set in 'flags', the SDL library will try to set up
* two surfaces in video memory and swap between them when you call
* SDL_Flip(). This is usually slower than the normal single-buffering
* scheme, but prevents "tearing" artifacts caused by modifying video
* memory while the monitor is refreshing. It should only be used by
* applications that redraw the entire screen on every update.
*
* If SDL_RESIZABLE is set in 'flags', the SDL library will allow the
* window manager, if any, to resize the window at runtime. When this
* occurs, SDL will send a SDL_VIDEORESIZE event to you application,
* and you must respond to the event by re-calling SDL_SetVideoMode()
* with the requested size (or another size that suits the application).
*
* If SDL_NOFRAME is set in 'flags', the SDL library will create a window
* without any title bar or frame decoration. Fullscreen video modes have
* this flag set automatically.
*
* This function returns the video framebuffer surface, or NULL if it fails.
*
* If you rely on functionality provided by certain video flags, check the
* flags of the returned surface to make sure that functionality is available.
* SDL will fall back to reduced functionality if the exact flags you wanted
* are not available.
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_SetVideoMode
(int width, int height, int bpp, Uint32 flags);
/** @name SDL_Update Functions
* These functions should not be called while 'screen' is locked.
*/
/*@{*/
/**
* Makes sure the given list of rectangles is updated on the given screen.
*/
extern DECLSPEC void SDLCALL SDL_UpdateRects
(SDL_Surface *screen, int numrects, SDL_Rect *rects);
/**
* If 'x', 'y', 'w' and 'h' are all 0, SDL_UpdateRect will update the entire
* screen.
*/
extern DECLSPEC void SDLCALL SDL_UpdateRect
(SDL_Surface *screen, Sint32 x, Sint32 y, Uint32 w, Uint32 h);
/*@}*/
/**
* On hardware that supports double-buffering, this function sets up a flip
* and returns. The hardware will wait for vertical retrace, and then swap
* video buffers before the next video surface blit or lock will return.
* On hardware that doesn not support double-buffering, this is equivalent
* to calling SDL_UpdateRect(screen, 0, 0, 0, 0);
* The SDL_DOUBLEBUF flag must have been passed to SDL_SetVideoMode() when
* setting the video mode for this function to perform hardware flipping.
* This function returns 0 if successful, or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_Flip(SDL_Surface *screen);
/**
* Set the gamma correction for each of the color channels.
* The gamma values range (approximately) between 0.1 and 10.0
*
* If this function isn't supported directly by the hardware, it will
* be emulated using gamma ramps, if available. If successful, this
* function returns 0, otherwise it returns -1.
*/
extern DECLSPEC int SDLCALL SDL_SetGamma(float red, float green, float blue);
/**
* Set the gamma translation table for the red, green, and blue channels
* of the video hardware. Each table is an array of 256 16-bit quantities,
* representing a mapping between the input and output for that channel.
* The input is the index into the array, and the output is the 16-bit
* gamma value at that index, scaled to the output color precision.
*
* You may pass NULL for any of the channels to leave it unchanged.
* If the call succeeds, it will return 0. If the display driver or
* hardware does not support gamma translation, or otherwise fails,
* this function will return -1.
*/
extern DECLSPEC int SDLCALL SDL_SetGammaRamp(const Uint16 *red, const Uint16 *green, const Uint16 *blue);
/**
* Retrieve the current values of the gamma translation tables.
*
* You must pass in valid pointers to arrays of 256 16-bit quantities.
* Any of the pointers may be NULL to ignore that channel.
* If the call succeeds, it will return 0. If the display driver or
* hardware does not support gamma translation, or otherwise fails,
* this function will return -1.
*/
extern DECLSPEC int SDLCALL SDL_GetGammaRamp(Uint16 *red, Uint16 *green, Uint16 *blue);
/**
* Sets a portion of the colormap for the given 8-bit surface. If 'surface'
* is not a palettized surface, this function does nothing, returning 0.
* If all of the colors were set as passed to SDL_SetColors(), it will
* return 1. If not all the color entries were set exactly as given,
* it will return 0, and you should look at the surface palette to
* determine the actual color palette.
*
* When 'surface' is the surface associated with the current display, the
* display colormap will be updated with the requested colors. If
* SDL_HWPALETTE was set in SDL_SetVideoMode() flags, SDL_SetColors()
* will always return 1, and the palette is guaranteed to be set the way
* you desire, even if the window colormap has to be warped or run under
* emulation.
*/
extern DECLSPEC int SDLCALL SDL_SetColors(SDL_Surface *surface,
SDL_Color *colors, int firstcolor, int ncolors);
/**
* Sets a portion of the colormap for a given 8-bit surface.
* 'flags' is one or both of:
* SDL_LOGPAL -- set logical palette, which controls how blits are mapped
* to/from the surface,
* SDL_PHYSPAL -- set physical palette, which controls how pixels look on
* the screen
* Only screens have physical palettes. Separate change of physical/logical
* palettes is only possible if the screen has SDL_HWPALETTE set.
*
* The return value is 1 if all colours could be set as requested, and 0
* otherwise.
*
* SDL_SetColors() is equivalent to calling this function with
* flags = (SDL_LOGPAL|SDL_PHYSPAL).
*/
extern DECLSPEC int SDLCALL SDL_SetPalette(SDL_Surface *surface, int flags,
SDL_Color *colors, int firstcolor,
int ncolors);
/**
* Maps an RGB triple to an opaque pixel value for a given pixel format
*/
extern DECLSPEC Uint32 SDLCALL SDL_MapRGB
(const SDL_PixelFormat * const format,
const Uint8 r, const Uint8 g, const Uint8 b);
/**
* Maps an RGBA quadruple to a pixel value for a given pixel format
*/
extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA
(const SDL_PixelFormat * const format,
const Uint8 r, const Uint8 g, const Uint8 b, const Uint8 a);
/**
* Maps a pixel value into the RGB components for a given pixel format
*/
extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel,
const SDL_PixelFormat * const fmt,
Uint8 *r, Uint8 *g, Uint8 *b);
/**
* Maps a pixel value into the RGBA components for a given pixel format
*/
extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel,
const SDL_PixelFormat * const fmt,
Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a);
/** @sa SDL_CreateRGBSurface */
#define SDL_AllocSurface SDL_CreateRGBSurface
/**
* Allocate and free an RGB surface (must be called after SDL_SetVideoMode)
* If the depth is 4 or 8 bits, an empty palette is allocated for the surface.
* If the depth is greater than 8 bits, the pixel format is set using the
* flags '[RGB]mask'.
* If the function runs out of memory, it will return NULL.
*
* The 'flags' tell what kind of surface to create.
* SDL_SWSURFACE means that the surface should be created in system memory.
* SDL_HWSURFACE means that the surface should be created in video memory,
* with the same format as the display surface. This is useful for surfaces
* that will not change much, to take advantage of hardware acceleration
* when being blitted to the display surface.
* SDL_ASYNCBLIT means that SDL will try to perform asynchronous blits with
* this surface, but you must always lock it before accessing the pixels.
* SDL will wait for current blits to finish before returning from the lock.
* SDL_SRCCOLORKEY indicates that the surface will be used for colorkey blits.
* If the hardware supports acceleration of colorkey blits between
* two surfaces in video memory, SDL will try to place the surface in
* video memory. If this isn't possible or if there is no hardware
* acceleration available, the surface will be placed in system memory.
* SDL_SRCALPHA means that the surface will be used for alpha blits and
* if the hardware supports hardware acceleration of alpha blits between
* two surfaces in video memory, to place the surface in video memory
* if possible, otherwise it will be placed in system memory.
* If the surface is created in video memory, blits will be _much_ faster,
* but the surface format must be identical to the video surface format,
* and the only way to access the pixels member of the surface is to use
* the SDL_LockSurface() and SDL_UnlockSurface() calls.
* If the requested surface actually resides in video memory, SDL_HWSURFACE
* will be set in the flags member of the returned surface. If for some
* reason the surface could not be placed in video memory, it will not have
* the SDL_HWSURFACE flag set, and will be created in system memory instead.
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_CreateRGBSurface
(Uint32 flags, int width, int height, int depth,
Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
/** @sa SDL_CreateRGBSurface */
extern DECLSPEC SDL_Surface * SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels,
int width, int height, int depth, int pitch,
Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface *surface);
/**
* SDL_LockSurface() sets up a surface for directly accessing the pixels.
* Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write
* to and read from 'surface->pixels', using the pixel format stored in
* 'surface->format'. Once you are done accessing the surface, you should
* use SDL_UnlockSurface() to release it.
*
* Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates
* to 0, then you can read and write to the surface at any time, and the
* pixel format of the surface will not change. In particular, if the
* SDL_HWSURFACE flag is not given when calling SDL_SetVideoMode(), you
* will not need to lock the display surface before accessing it.
*
* No operating system or library calls should be made between lock/unlock
* pairs, as critical system locks may be held during this time.
*
* SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked.
*/
extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface *surface);
extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface *surface);
/**
* Load a surface from a seekable SDL data source (memory or file.)
* If 'freesrc' is non-zero, the source will be closed after being read.
* Returns the new surface, or NULL if there was an error.
* The new surface should be freed with SDL_FreeSurface().
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_LoadBMP_RW(SDL_RWops *src, int freesrc);
/** Convenience macro -- load a surface from a file */
#define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_RWFromFile(file, "rb"), 1)
/**
* Save a surface to a seekable SDL data source (memory or file.)
* If 'freedst' is non-zero, the source will be closed after being written.
* Returns 0 if successful or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
(SDL_Surface *surface, SDL_RWops *dst, int freedst);
/** Convenience macro -- save a surface to a file */
#define SDL_SaveBMP(surface, file) \
SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1)
/**
* Sets the color key (transparent pixel) in a blittable surface.
* If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL),
* 'key' will be the transparent pixel in the source image of a blit.
* SDL_RLEACCEL requests RLE acceleration for the surface if present,
* and removes RLE acceleration if absent.
* If 'flag' is 0, this function clears any current color key.
* This function returns 0, or -1 if there was an error.
*/
extern DECLSPEC int SDLCALL SDL_SetColorKey
(SDL_Surface *surface, Uint32 flag, Uint32 key);
/**
* This function sets the alpha value for the entire surface, as opposed to
* using the alpha component of each pixel. This value measures the range
* of transparency of the surface, 0 being completely transparent to 255
* being completely opaque. An 'alpha' value of 255 causes blits to be
* opaque, the source pixels copied to the destination (the default). Note
* that per-surface alpha can be combined with colorkey transparency.
*
* If 'flag' is 0, alpha blending is disabled for the surface.
* If 'flag' is SDL_SRCALPHA, alpha blending is enabled for the surface.
* OR:ing the flag with SDL_RLEACCEL requests RLE acceleration for the
* surface; if SDL_RLEACCEL is not specified, the RLE accel will be removed.
*
* The 'alpha' parameter is ignored for surfaces that have an alpha channel.
*/
extern DECLSPEC int SDLCALL SDL_SetAlpha(SDL_Surface *surface, Uint32 flag, Uint8 alpha);
/**
* Sets the clipping rectangle for the destination surface in a blit.
*
* If the clip rectangle is NULL, clipping will be disabled.
* If the clip rectangle doesn't intersect the surface, the function will
* return SDL_FALSE and blits will be completely clipped. Otherwise the
* function returns SDL_TRUE and blits to the surface will be clipped to
* the intersection of the surface area and the clipping rectangle.
*
* Note that blits are automatically clipped to the edges of the source
* and destination surfaces.
*/
extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface *surface, const SDL_Rect *rect);
/**
* Gets the clipping rectangle for the destination surface in a blit.
* 'rect' must be a pointer to a valid rectangle which will be filled
* with the correct values.
*/
extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect);
/**
* Creates a new surface of the specified format, and then copies and maps
* the given surface to it so the blit of the converted surface will be as
* fast as possible. If this function fails, it returns NULL.
*
* The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those
* semantics. You can also pass SDL_RLEACCEL in the flags parameter and
* SDL will try to RLE accelerate colorkey and alpha blits in the resulting
* surface.
*
* This function is used internally by SDL_DisplayFormat().
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_ConvertSurface
(SDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags);
/**
* This performs a fast blit from the source surface to the destination
* surface. It assumes that the source and destination rectangles are
* the same size. If either 'srcrect' or 'dstrect' are NULL, the entire
* surface (src or dst) is copied. The final blit rectangles are saved
* in 'srcrect' and 'dstrect' after all clipping is performed.
* If the blit is successful, it returns 0, otherwise it returns -1.
*
* The blit function should not be called on a locked surface.
*
* The blit semantics for surfaces with and without alpha and colorkey
* are defined as follows:
*
* RGBA->RGB:
* SDL_SRCALPHA set:
* alpha-blend (using alpha-channel).
* SDL_SRCCOLORKEY ignored.
* SDL_SRCALPHA not set:
* copy RGB.
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source colour key, ignoring alpha in the
* comparison.
*
* RGB->RGBA:
* SDL_SRCALPHA set:
* alpha-blend (using the source per-surface alpha value);
* set destination alpha to opaque.
* SDL_SRCALPHA not set:
* copy RGB, set destination alpha to source per-surface alpha value.
* both:
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* source colour key.
*
* RGBA->RGBA:
* SDL_SRCALPHA set:
* alpha-blend (using the source alpha channel) the RGB values;
* leave destination alpha untouched. [Note: is this correct?]
* SDL_SRCCOLORKEY ignored.
* SDL_SRCALPHA not set:
* copy all of RGBA to the destination.
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source colour key, ignoring alpha in the
* comparison.
*
* RGB->RGB:
* SDL_SRCALPHA set:
* alpha-blend (using the source per-surface alpha value).
* SDL_SRCALPHA not set:
* copy RGB.
* both:
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* source colour key.
*
* If either of the surfaces were in video memory, and the blit returns -2,
* the video memory was lost, so it should be reloaded with artwork and
* re-blitted:
* @code
* while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) {
* while ( SDL_LockSurface(image) < 0 )
* Sleep(10);
* -- Write image pixels to image->pixels --
* SDL_UnlockSurface(image);
* }
* @endcode
*
* This happens under DirectX 5.0 when the system switches away from your
* fullscreen application. The lock will also fail until you have access
* to the video memory again.
*
* You should call SDL_BlitSurface() unless you know exactly how SDL
* blitting works internally and how to use the other blit functions.
*/
#define SDL_BlitSurface SDL_UpperBlit
/** This is the public blit function, SDL_BlitSurface(), and it performs
* rectangle validation and clipping before passing it to SDL_LowerBlit()
*/
extern DECLSPEC int SDLCALL SDL_UpperBlit
(SDL_Surface *src, SDL_Rect *srcrect,
SDL_Surface *dst, SDL_Rect *dstrect);
/** This is a semi-private blit function and it performs low-level surface
* blitting only.
*/
extern DECLSPEC int SDLCALL SDL_LowerBlit
(SDL_Surface *src, SDL_Rect *srcrect,
SDL_Surface *dst, SDL_Rect *dstrect);
/**
* This function performs a fast fill of the given rectangle with 'color'
* The given rectangle is clipped to the destination surface clip area
* and the final fill rectangle is saved in the passed in pointer.
* If 'dstrect' is NULL, the whole surface will be filled with 'color'
* The color should be a pixel of the format used by the surface, and
* can be generated by the SDL_MapRGB() function.
* This function returns 0 on success, or -1 on error.
*/
extern DECLSPEC int SDLCALL SDL_FillRect
(SDL_Surface *dst, SDL_Rect *dstrect, Uint32 color);
/**
* This function takes a surface and copies it to a new surface of the
* pixel format and colors of the video framebuffer, suitable for fast
* blitting onto the display surface. It calls SDL_ConvertSurface()
*
* If you want to take advantage of hardware colorkey or alpha blit
* acceleration, you should set the colorkey and alpha value before
* calling this function.
*
* If the conversion fails or runs out of memory, it returns NULL
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_DisplayFormat(SDL_Surface *surface);
/**
* This function takes a surface and copies it to a new surface of the
* pixel format and colors of the video framebuffer (if possible),
* suitable for fast alpha blitting onto the display surface.
* The new surface will always have an alpha channel.
*
* If you want to take advantage of hardware colorkey or alpha blit
* acceleration, you should set the colorkey and alpha value before
* calling this function.
*
* If the conversion fails or runs out of memory, it returns NULL
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_DisplayFormatAlpha(SDL_Surface *surface);
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** @name YUV video surface overlay functions */ /*@{*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** This function creates a video output overlay
* Calling the returned surface an overlay is something of a misnomer because
* the contents of the display surface underneath the area where the overlay
* is shown is undefined - it may be overwritten with the converted YUV data.
*/
extern DECLSPEC SDL_Overlay * SDLCALL SDL_CreateYUVOverlay(int width, int height,
Uint32 format, SDL_Surface *display);
/** Lock an overlay for direct access, and unlock it when you are done */
extern DECLSPEC int SDLCALL SDL_LockYUVOverlay(SDL_Overlay *overlay);
extern DECLSPEC void SDLCALL SDL_UnlockYUVOverlay(SDL_Overlay *overlay);
/** Blit a video overlay to the display surface.
* The contents of the video surface underneath the blit destination are
* not defined.
* The width and height of the destination rectangle may be different from
* that of the overlay, but currently only 2x scaling is supported.
*/
extern DECLSPEC int SDLCALL SDL_DisplayYUVOverlay(SDL_Overlay *overlay, SDL_Rect *dstrect);
/** Free a video overlay */
extern DECLSPEC void SDLCALL SDL_FreeYUVOverlay(SDL_Overlay *overlay);
/*@}*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** @name OpenGL support functions. */ /*@{*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**
* Dynamically load an OpenGL library, or the default one if path is NULL
*
* If you do this, you need to retrieve all of the GL functions used in
* your program from the dynamic library using SDL_GL_GetProcAddress().
*/
extern DECLSPEC int SDLCALL SDL_GL_LoadLibrary(const char *path);
/**
* Get the address of a GL function
*/
extern DECLSPEC void * SDLCALL SDL_GL_GetProcAddress(const char* proc);
/**
* Set an attribute of the OpenGL subsystem before intialization.
*/
extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value);
/**
* Get an attribute of the OpenGL subsystem from the windowing
* interface, such as glX. This is of course different from getting
* the values from SDL's internal OpenGL subsystem, which only
* stores the values you request before initialization.
*
* Developers should track the values they pass into SDL_GL_SetAttribute
* themselves if they want to retrieve these values.
*/
extern DECLSPEC int SDLCALL SDL_GL_GetAttribute(SDL_GLattr attr, int* value);
/**
* Swap the OpenGL buffers, if double-buffering is supported.
*/
extern DECLSPEC void SDLCALL SDL_GL_SwapBuffers(void);
/** @name OpenGL Internal Functions
* Internal functions that should not be called unless you have read
* and understood the source code for these functions.
*/
/*@{*/
extern DECLSPEC void SDLCALL SDL_GL_UpdateRects(int numrects, SDL_Rect* rects);
extern DECLSPEC void SDLCALL SDL_GL_Lock(void);
extern DECLSPEC void SDLCALL SDL_GL_Unlock(void);
/*@}*/
/*@}*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/** @name Window Manager Functions */
/** These functions allow interaction with the window manager, if any. */ /*@{*/
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/**
* Sets the title and icon text of the display window (UTF-8 encoded)
*/
extern DECLSPEC void SDLCALL SDL_WM_SetCaption(const char *title, const char *icon);
/**
* Gets the title and icon text of the display window (UTF-8 encoded)
*/
extern DECLSPEC void SDLCALL SDL_WM_GetCaption(char **title, char **icon);
/**
* Sets the icon for the display window.
* This function must be called before the first call to SDL_SetVideoMode().
* It takes an icon surface, and a mask in MSB format.
* If 'mask' is NULL, the entire icon surface will be used as the icon.
*/
extern DECLSPEC void SDLCALL SDL_WM_SetIcon(SDL_Surface *icon, Uint8 *mask);
/**
* This function iconifies the window, and returns 1 if it succeeded.
* If the function succeeds, it generates an SDL_APPACTIVE loss event.
* This function is a noop and returns 0 in non-windowed environments.
*/
extern DECLSPEC int SDLCALL SDL_WM_IconifyWindow(void);
/**
* Toggle fullscreen mode without changing the contents of the screen.
* If the display surface does not require locking before accessing
* the pixel information, then the memory pointers will not change.
*
* If this function was able to toggle fullscreen mode (change from
* running in a window to fullscreen, or vice-versa), it will return 1.
* If it is not implemented, or fails, it returns 0.
*
* The next call to SDL_SetVideoMode() will set the mode fullscreen
* attribute based on the flags parameter - if SDL_FULLSCREEN is not
* set, then the display will be windowed by default where supported.
*
* This is currently only implemented in the X11 video driver.
*/
extern DECLSPEC int SDLCALL SDL_WM_ToggleFullScreen(SDL_Surface *surface);
typedef enum {
SDL_GRAB_QUERY = -1,
SDL_GRAB_OFF = 0,
SDL_GRAB_ON = 1,
SDL_GRAB_FULLSCREEN /**< Used internally */
} SDL_GrabMode;
/**
* This function allows you to set and query the input grab state of
* the application. It returns the new input grab state.
*
* Grabbing means that the mouse is confined to the application window,
* and nearly all keyboard input is passed directly to the application,
* and not interpreted by a window manager, if any.
*/
extern DECLSPEC SDL_GrabMode SDLCALL SDL_WM_GrabInput(SDL_GrabMode mode);
/*@}*/
/** @internal Not in public API at the moment - do not use! */
extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface *src, SDL_Rect *srcrect,
SDL_Surface *dst, SDL_Rect *dstrect);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif
#include "close_code.h"
#endif /* _SDL_video_h */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file begin_code.h
* This file sets things up for C dynamic library function definitions,
* static inlined functions, and structures aligned at 4-byte alignment.
* If you don't like ugly C preprocessor code, don't look at this file. :)
*/
/**
* @file begin_code.h
* This shouldn't be nested -- included it around code only.
*/
#ifdef _begin_code_h
#error Nested inclusion of begin_code.h
#endif
#define _begin_code_h
/**
* @def DECLSPEC
* Some compilers use a special export keyword
*/
#ifndef DECLSPEC
# if defined(__BEOS__) || defined(__HAIKU__)
# if defined(__GNUC__)
# define DECLSPEC __declspec(dllexport)
# else
# define DECLSPEC __declspec(export)
# endif
# elif defined(__WIN32__)
# ifdef __BORLANDC__
# ifdef BUILD_SDL
# define DECLSPEC
# else
# define DECLSPEC __declspec(dllimport)
# endif
# else
# define DECLSPEC __declspec(dllexport)
# endif
# elif defined(__OS2__)
# ifdef __WATCOMC__
# ifdef BUILD_SDL
# define DECLSPEC __declspec(dllexport)
# else
# define DECLSPEC
# endif
# elif defined (__GNUC__) && __GNUC__ < 4
# /* Added support for GCC-EMX <v4.x */
# /* this is needed for XFree86/OS2 developement */
# /* F. Ambacher(anakor@snafu.de) 05.2008 */
# ifdef BUILD_SDL
# define DECLSPEC __declspec(dllexport)
# else
# define DECLSPEC
# endif
# else
# define DECLSPEC
# endif
# else
# if defined(__GNUC__) && __GNUC__ >= 4
# define DECLSPEC __attribute__ ((visibility("default")))
# else
# define DECLSPEC
# endif
# endif
#endif
/**
* @def SDLCALL
* By default SDL uses the C calling convention
*/
#ifndef SDLCALL
# if defined(__WIN32__) && !defined(__GNUC__)
# define SDLCALL __cdecl
# elif defined(__OS2__)
# if defined (__GNUC__) && __GNUC__ < 4
# /* Added support for GCC-EMX <v4.x */
# /* this is needed for XFree86/OS2 developement */
# /* F. Ambacher(anakor@snafu.de) 05.2008 */
# define SDLCALL _cdecl
# else
# /* On other compilers on OS/2, we use the _System calling convention */
# /* to be compatible with every compiler */
# define SDLCALL _System
# endif
# else
# define SDLCALL
# endif
#endif /* SDLCALL */
#ifdef __SYMBIAN32__
#ifndef EKA2
#undef DECLSPEC
#define DECLSPEC
#elif !defined(__WINS__)
#undef DECLSPEC
#define DECLSPEC __declspec(dllexport)
#endif /* !EKA2 */
#endif /* __SYMBIAN32__ */
/**
* @file begin_code.h
* Force structure packing at 4 byte alignment.
* This is necessary if the header is included in code which has structure
* packing set to an alternate value, say for loading structures from disk.
* The packing is reset to the previous value in close_code.h
*/
#if defined(_MSC_VER) || defined(__MWERKS__) || defined(__BORLANDC__)
#ifdef _MSC_VER
#pragma warning(disable: 4103)
#endif
#ifdef __BORLANDC__
#pragma nopackwarning
#endif
#pragma pack(push,4)
#elif (defined(__MWERKS__) && defined(__MACOS__))
#pragma options align=mac68k4byte
#pragma enumsalwaysint on
#endif /* Compiler needs structure packing set */
/**
* @def SDL_INLINE_OKAY
* Set up compiler-specific options for inlining functions
*/
#ifndef SDL_INLINE_OKAY
#ifdef __GNUC__
#define SDL_INLINE_OKAY
#else
/* Add any special compiler-specific cases here */
#if defined(_MSC_VER) || defined(__BORLANDC__) || \
defined(__DMC__) || defined(__SC__) || \
defined(__WATCOMC__) || defined(__LCC__) || \
defined(__DECC) || defined(__EABI__)
#ifndef __inline__
#define __inline__ __inline
#endif
#define SDL_INLINE_OKAY
#else
#if !defined(__MRC__) && !defined(_SGI_SOURCE)
#ifndef __inline__
#define __inline__ inline
#endif
#define SDL_INLINE_OKAY
#endif /* Not a funky compiler */
#endif /* Visual C++ */
#endif /* GNU C */
#endif /* SDL_INLINE_OKAY */
/**
* @def __inline__
* If inlining isn't supported, remove "__inline__", turning static
* inlined functions into static functions (resulting in code bloat
* in all files which include the offending header files)
*/
#ifndef SDL_INLINE_OKAY
#define __inline__
#endif
/**
* @def NULL
* Apparently this is needed by several Windows compilers
*/
#if !defined(__MACH__)
#ifndef NULL
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((void *)0)
#endif
#endif /* NULL */
#endif /* ! Mac OS X - breaks precompiled headers */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
/**
* @file close_code.h
* This file reverses the effects of begin_code.h and should be included
* after you finish any function and structure declarations in your headers
*/
#undef _begin_code_h
/**
* @file close_code.h
* Reset structure packing at previous byte alignment
*/
#if defined(_MSC_VER) || defined(__MWERKS__) || defined(__WATCOMC__) || defined(__BORLANDC__)
#ifdef __BORLANDC__
#pragma nopackwarning
#endif
#if (defined(__MWERKS__) && defined(__MACOS__))
#pragma options align=reset
#pragma enumsalwaysint reset
#else
#pragma pack(pop)
#endif
#endif /* Compiler needs structure packing set */

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# Doxyfile 1.2.16
# This file describes the settings to be used by the documentation system
# doxygen (www.doxygen.org) for a project
#
# All text after a hash (#) is considered a comment and will be ignored
# The format is:
# TAG = value [value, ...]
# For lists items can also be appended using:
# TAG += value [value, ...]
# Values that contain spaces should be placed between quotes (" ")
#---------------------------------------------------------------------------
# General configuration options
#---------------------------------------------------------------------------
# The PROJECT_NAME tag is a single word (or a sequence of words surrounded
# by quotes) that should identify the project.
PROJECT_NAME = SDL
# The PROJECT_NUMBER tag can be used to enter a project or revision number.
# This could be handy for archiving the generated documentation or
# if some version control system is used.
PROJECT_NUMBER = 1.2.14
# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute)
# base path where the generated documentation will be put.
# If a relative path is entered, it will be relative to the location
# where doxygen was started. If left blank the current directory will be used.
OUTPUT_DIRECTORY = docs
# The OUTPUT_LANGUAGE tag is used to specify the language in which all
# documentation generated by doxygen is written. Doxygen will use this
# information to generate all constant output in the proper language.
# The default language is English, other supported languages are:
# Brazilian, Chinese, Chinese-Traditional, Croatian, Czech, Danish, Dutch,
# Finnish, French, German, Greek, Hungarian, Italian, Japanese, Korean,
# Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Slovene,
# Spanish, Swedish and Ukrainian.
OUTPUT_LANGUAGE = English
# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
# documentation are documented, even if no documentation was available.
# Private class members and static file members will be hidden unless
# the EXTRACT_PRIVATE and EXTRACT_STATIC tags are set to YES
EXTRACT_ALL = NO
# If the EXTRACT_PRIVATE tag is set to YES all private members of a class
# will be included in the documentation.
EXTRACT_PRIVATE = NO
# If the EXTRACT_STATIC tag is set to YES all static members of a file
# will be included in the documentation.
EXTRACT_STATIC = NO
# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs)
# defined locally in source files will be included in the documentation.
# If set to NO only classes defined in header files are included.
EXTRACT_LOCAL_CLASSES = NO
# If the HIDE_UNDOC_MEMBERS tag is set to YES, Doxygen will hide all
# undocumented members of documented classes, files or namespaces.
# If set to NO (the default) these members will be included in the
# various overviews, but no documentation section is generated.
# This option has no effect if EXTRACT_ALL is enabled.
HIDE_UNDOC_MEMBERS = NO
# If the HIDE_UNDOC_CLASSES tag is set to YES, Doxygen will hide all
# undocumented classes that are normally visible in the class hierarchy.
# If set to NO (the default) these class will be included in the various
# overviews. This option has no effect if EXTRACT_ALL is enabled.
HIDE_UNDOC_CLASSES = NO
# If the BRIEF_MEMBER_DESC tag is set to YES (the default) Doxygen will
# include brief member descriptions after the members that are listed in
# the file and class documentation (similar to JavaDoc).
# Set to NO to disable this.
BRIEF_MEMBER_DESC = YES
# If the REPEAT_BRIEF tag is set to YES (the default) Doxygen will prepend
# the brief description of a member or function before the detailed description.
# Note: if both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
# brief descriptions will be completely suppressed.
REPEAT_BRIEF = YES
# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
# Doxygen will generate a detailed section even if there is only a brief
# description.
ALWAYS_DETAILED_SEC = NO
# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all inherited
# members of a class in the documentation of that class as if those members were
# ordinary class members. Constructors, destructors and assignment operators of
# the base classes will not be shown.
INLINE_INHERITED_MEMB = NO
# If the FULL_PATH_NAMES tag is set to YES then Doxygen will prepend the full
# path before files name in the file list and in the header files. If set
# to NO the shortest path that makes the file name unique will be used.
FULL_PATH_NAMES = NO
# If the FULL_PATH_NAMES tag is set to YES then the STRIP_FROM_PATH tag
# can be used to strip a user defined part of the path. Stripping is
# only done if one of the specified strings matches the left-hand part of
# the path. It is allowed to use relative paths in the argument list.
STRIP_FROM_PATH =
# The INTERNAL_DOCS tag determines if documentation
# that is typed after a \internal command is included. If the tag is set
# to NO (the default) then the documentation will be excluded.
# Set it to YES to include the internal documentation.
INTERNAL_DOCS = NO
# Setting the STRIP_CODE_COMMENTS tag to YES (the default) will instruct
# doxygen to hide any special comment blocks from generated source code
# fragments. Normal C and C++ comments will always remain visible.
STRIP_CODE_COMMENTS = YES
# If the CASE_SENSE_NAMES tag is set to NO then Doxygen will only generate
# file names in lower case letters. If set to YES upper case letters are also
# allowed. This is useful if you have classes or files whose names only differ
# in case and if your file system supports case sensitive file names. Windows
# users are adviced to set this option to NO.
CASE_SENSE_NAMES = YES
# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter
# (but less readable) file names. This can be useful is your file systems
# doesn't support long names like on DOS, Mac, or CD-ROM.
SHORT_NAMES = NO
# If the HIDE_SCOPE_NAMES tag is set to NO (the default) then Doxygen
# will show members with their full class and namespace scopes in the
# documentation. If set to YES the scope will be hidden.
HIDE_SCOPE_NAMES = NO
# If the VERBATIM_HEADERS tag is set to YES (the default) then Doxygen
# will generate a verbatim copy of the header file for each class for
# which an include is specified. Set to NO to disable this.
VERBATIM_HEADERS = YES
# If the SHOW_INCLUDE_FILES tag is set to YES (the default) then Doxygen
# will put list of the files that are included by a file in the documentation
# of that file.
SHOW_INCLUDE_FILES = YES
# If the JAVADOC_AUTOBRIEF tag is set to YES then Doxygen
# will interpret the first line (until the first dot) of a JavaDoc-style
# comment as the brief description. If set to NO, the JavaDoc
# comments will behave just like the Qt-style comments (thus requiring an
# explict @brief command for a brief description.
JAVADOC_AUTOBRIEF = NO
# If the DETAILS_AT_TOP tag is set to YES then Doxygen
# will output the detailed description near the top, like JavaDoc.
# If set to NO, the detailed description appears after the member
# documentation.
DETAILS_AT_TOP = NO
# If the INHERIT_DOCS tag is set to YES (the default) then an undocumented
# member inherits the documentation from any documented member that it
# reimplements.
INHERIT_DOCS = YES
# If the INLINE_INFO tag is set to YES (the default) then a tag [inline]
# is inserted in the documentation for inline members.
INLINE_INFO = YES
# If the SORT_MEMBER_DOCS tag is set to YES (the default) then doxygen
# will sort the (detailed) documentation of file and class members
# alphabetically by member name. If set to NO the members will appear in
# declaration order.
SORT_MEMBER_DOCS = YES
# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
# tag is set to YES, then doxygen will reuse the documentation of the first
# member in the group (if any) for the other members of the group. By default
# all members of a group must be documented explicitly.
DISTRIBUTE_GROUP_DOC = NO
# The TAB_SIZE tag can be used to set the number of spaces in a tab.
# Doxygen uses this value to replace tabs by spaces in code fragments.
TAB_SIZE = 4
# The GENERATE_TODOLIST tag can be used to enable (YES) or
# disable (NO) the todo list. This list is created by putting \todo
# commands in the documentation.
GENERATE_TODOLIST = YES
# The GENERATE_TESTLIST tag can be used to enable (YES) or
# disable (NO) the test list. This list is created by putting \test
# commands in the documentation.
GENERATE_TESTLIST = YES
# The GENERATE_BUGLIST tag can be used to enable (YES) or
# disable (NO) the bug list. This list is created by putting \bug
# commands in the documentation.
GENERATE_BUGLIST = YES
# This tag can be used to specify a number of aliases that acts
# as commands in the documentation. An alias has the form "name=value".
# For example adding "sideeffect=\par Side Effects:\n" will allow you to
# put the command \sideeffect (or @sideeffect) in the documentation, which
# will result in a user defined paragraph with heading "Side Effects:".
# You can put \n's in the value part of an alias to insert newlines.
ALIASES =
# The ENABLED_SECTIONS tag can be used to enable conditional
# documentation sections, marked by \if sectionname ... \endif.
ENABLED_SECTIONS =
# The MAX_INITIALIZER_LINES tag determines the maximum number of lines
# the initial value of a variable or define consist of for it to appear in
# the documentation. If the initializer consists of more lines than specified
# here it will be hidden. Use a value of 0 to hide initializers completely.
# The appearance of the initializer of individual variables and defines in the
# documentation can be controlled using \showinitializer or \hideinitializer
# command in the documentation regardless of this setting.
MAX_INITIALIZER_LINES = 30
# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
# only. Doxygen will then generate output that is more tailored for C.
# For instance some of the names that are used will be different. The list
# of all members will be omitted, etc.
OPTIMIZE_OUTPUT_FOR_C = YES
# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java sources
# only. Doxygen will then generate output that is more tailored for Java.
# For instance namespaces will be presented as packages, qualified scopes
# will look different, etc.
OPTIMIZE_OUTPUT_JAVA = NO
# Set the SHOW_USED_FILES tag to NO to disable the list of files generated
# at the bottom of the documentation of classes and structs. If set to YES the
# list will mention the files that were used to generate the documentation.
SHOW_USED_FILES = YES
#---------------------------------------------------------------------------
# configuration options related to warning and progress messages
#---------------------------------------------------------------------------
# The QUIET tag can be used to turn on/off the messages that are generated
# by doxygen. Possible values are YES and NO. If left blank NO is used.
QUIET = NO
# The WARNINGS tag can be used to turn on/off the warning messages that are
# generated by doxygen. Possible values are YES and NO. If left blank
# NO is used.
WARNINGS = YES
# If WARN_IF_UNDOCUMENTED is set to YES, then doxygen will generate warnings
# for undocumented members. If EXTRACT_ALL is set to YES then this flag will
# automatically be disabled.
WARN_IF_UNDOCUMENTED = YES
# The WARN_FORMAT tag determines the format of the warning messages that
# doxygen can produce. The string should contain the $file, $line, and $text
# tags, which will be replaced by the file and line number from which the
# warning originated and the warning text.
WARN_FORMAT = "$file:$line: $text"
# The WARN_LOGFILE tag can be used to specify a file to which warning
# and error messages should be written. If left blank the output is written
# to stderr.
WARN_LOGFILE =
#---------------------------------------------------------------------------
# configuration options related to the input files
#---------------------------------------------------------------------------
# The INPUT tag can be used to specify the files and/or directories that contain
# documented source files. You may enter file names like "myfile.cpp" or
# directories like "/usr/src/myproject". Separate the files or directories
# with spaces.
INPUT = include
# If the value of the INPUT tag contains directories, you can use the
# FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
# and *.h) to filter out the source-files in the directories. If left
# blank the following patterns are tested:
# *.c *.cc *.cxx *.cpp *.c++ *.java *.ii *.ixx *.ipp *.i++ *.inl *.h *.hh *.hxx *.hpp
# *.h++ *.idl *.odl
FILE_PATTERNS = *.h
# The RECURSIVE tag can be used to turn specify whether or not subdirectories
# should be searched for input files as well. Possible values are YES and NO.
# If left blank NO is used.
RECURSIVE = NO
# The EXCLUDE tag can be used to specify files and/or directories that should
# excluded from the INPUT source files. This way you can easily exclude a
# subdirectory from a directory tree whose root is specified with the INPUT tag.
EXCLUDE =
# The EXCLUDE_SYMLINKS tag can be used select whether or not files or directories
# that are symbolic links (a Unix filesystem feature) are excluded from the input.
EXCLUDE_SYMLINKS = NO
# If the value of the INPUT tag contains directories, you can use the
# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
# certain files from those directories.
EXCLUDE_PATTERNS =
# The EXAMPLE_PATH tag can be used to specify one or more files or
# directories that contain example code fragments that are included (see
# the \include command).
EXAMPLE_PATH =
# If the value of the EXAMPLE_PATH tag contains directories, you can use the
# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
# and *.h) to filter out the source-files in the directories. If left
# blank all files are included.
EXAMPLE_PATTERNS =
# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
# searched for input files to be used with the \include or \dontinclude
# commands irrespective of the value of the RECURSIVE tag.
# Possible values are YES and NO. If left blank NO is used.
EXAMPLE_RECURSIVE = NO
# The IMAGE_PATH tag can be used to specify one or more files or
# directories that contain image that are included in the documentation (see
# the \image command).
IMAGE_PATH =
# The INPUT_FILTER tag can be used to specify a program that doxygen should
# invoke to filter for each input file. Doxygen will invoke the filter program
# by executing (via popen()) the command <filter> <input-file>, where <filter>
# is the value of the INPUT_FILTER tag, and <input-file> is the name of an
# input file. Doxygen will then use the output that the filter program writes
# to standard output.
INPUT_FILTER =
# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
# INPUT_FILTER) will be used to filter the input files when producing source
# files to browse.
FILTER_SOURCE_FILES = NO
#---------------------------------------------------------------------------
# configuration options related to source browsing
#---------------------------------------------------------------------------
# If the SOURCE_BROWSER tag is set to YES then a list of source files will
# be generated. Documented entities will be cross-referenced with these sources.
SOURCE_BROWSER = NO
# Setting the INLINE_SOURCES tag to YES will include the body
# of functions and classes directly in the documentation.
INLINE_SOURCES = NO
# If the REFERENCED_BY_RELATION tag is set to YES (the default)
# then for each documented function all documented
# functions referencing it will be listed.
REFERENCED_BY_RELATION = YES
# If the REFERENCES_RELATION tag is set to YES (the default)
# then for each documented function all documented entities
# called/used by that function will be listed.
REFERENCES_RELATION = YES
#---------------------------------------------------------------------------
# configuration options related to the alphabetical class index
#---------------------------------------------------------------------------
# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index
# of all compounds will be generated. Enable this if the project
# contains a lot of classes, structs, unions or interfaces.
ALPHABETICAL_INDEX = NO
# If the alphabetical index is enabled (see ALPHABETICAL_INDEX) then
# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns
# in which this list will be split (can be a number in the range [1..20])
COLS_IN_ALPHA_INDEX = 5
# In case all classes in a project start with a common prefix, all
# classes will be put under the same header in the alphabetical index.
# The IGNORE_PREFIX tag can be used to specify one or more prefixes that
# should be ignored while generating the index headers.
IGNORE_PREFIX =
#---------------------------------------------------------------------------
# configuration options related to the HTML output
#---------------------------------------------------------------------------
# If the GENERATE_HTML tag is set to YES (the default) Doxygen will
# generate HTML output.
GENERATE_HTML = YES
# The HTML_OUTPUT tag is used to specify where the HTML docs will be put.
# If a relative path is entered the value of OUTPUT_DIRECTORY will be
# put in front of it. If left blank `html' will be used as the default path.
HTML_OUTPUT = html
# The HTML_FILE_EXTENSION tag can be used to specify the file extension for
# each generated HTML page (for example: .htm,.php,.asp). If it is left blank
# doxygen will generate files with .html extension.
HTML_FILE_EXTENSION = .html
# The HTML_HEADER tag can be used to specify a personal HTML header for
# each generated HTML page. If it is left blank doxygen will generate a
# standard header.
HTML_HEADER =
# The HTML_FOOTER tag can be used to specify a personal HTML footer for
# each generated HTML page. If it is left blank doxygen will generate a
# standard footer.
HTML_FOOTER =
# The HTML_STYLESHEET tag can be used to specify a user defined cascading
# style sheet that is used by each HTML page. It can be used to
# fine-tune the look of the HTML output. If the tag is left blank doxygen
# will generate a default style sheet
HTML_STYLESHEET =
# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
# files or namespaces will be aligned in HTML using tables. If set to
# NO a bullet list will be used.
HTML_ALIGN_MEMBERS = YES
# If the GENERATE_HTMLHELP tag is set to YES, additional index files
# will be generated that can be used as input for tools like the
# Microsoft HTML help workshop to generate a compressed HTML help file (.chm)
# of the generated HTML documentation.
GENERATE_HTMLHELP = NO
# If the GENERATE_HTMLHELP tag is set to YES, the GENERATE_CHI flag
# controls if a separate .chi index file is generated (YES) or that
# it should be included in the master .chm file (NO).
GENERATE_CHI = NO
# If the GENERATE_HTMLHELP tag is set to YES, the BINARY_TOC flag
# controls whether a binary table of contents is generated (YES) or a
# normal table of contents (NO) in the .chm file.
BINARY_TOC = NO
# The TOC_EXPAND flag can be set to YES to add extra items for group members
# to the contents of the Html help documentation and to the tree view.
TOC_EXPAND = NO
# The DISABLE_INDEX tag can be used to turn on/off the condensed index at
# top of each HTML page. The value NO (the default) enables the index and
# the value YES disables it.
DISABLE_INDEX = NO
# This tag can be used to set the number of enum values (range [1..20])
# that doxygen will group on one line in the generated HTML documentation.
ENUM_VALUES_PER_LINE = 4
# If the GENERATE_TREEVIEW tag is set to YES, a side panel will be
# generated containing a tree-like index structure (just like the one that
# is generated for HTML Help). For this to work a browser that supports
# JavaScript and frames is required (for instance Mozilla, Netscape 4.0+,
# or Internet explorer 4.0+). Note that for large projects the tree generation
# can take a very long time. In such cases it is better to disable this feature.
# Windows users are probably better off using the HTML help feature.
GENERATE_TREEVIEW = NO
# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
# used to set the initial width (in pixels) of the frame in which the tree
# is shown.
TREEVIEW_WIDTH = 250
#---------------------------------------------------------------------------
# configuration options related to the LaTeX output
#---------------------------------------------------------------------------
# If the GENERATE_LATEX tag is set to YES (the default) Doxygen will
# generate Latex output.
GENERATE_LATEX = NO
# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put.
# If a relative path is entered the value of OUTPUT_DIRECTORY will be
# put in front of it. If left blank `latex' will be used as the default path.
LATEX_OUTPUT = latex
# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be invoked. If left blank `latex' will be used as the default command name.
LATEX_CMD_NAME = latex
# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to
# generate index for LaTeX. If left blank `makeindex' will be used as the
# default command name.
MAKEINDEX_CMD_NAME = makeindex
# If the COMPACT_LATEX tag is set to YES Doxygen generates more compact
# LaTeX documents. This may be useful for small projects and may help to
# save some trees in general.
COMPACT_LATEX = NO
# The PAPER_TYPE tag can be used to set the paper type that is used
# by the printer. Possible values are: a4, a4wide, letter, legal and
# executive. If left blank a4wide will be used.
PAPER_TYPE = a4wide
# The EXTRA_PACKAGES tag can be to specify one or more names of LaTeX
# packages that should be included in the LaTeX output.
EXTRA_PACKAGES =
# The LATEX_HEADER tag can be used to specify a personal LaTeX header for
# the generated latex document. The header should contain everything until
# the first chapter. If it is left blank doxygen will generate a
# standard header. Notice: only use this tag if you know what you are doing!
LATEX_HEADER =
# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated
# is prepared for conversion to pdf (using ps2pdf). The pdf file will
# contain links (just like the HTML output) instead of page references
# This makes the output suitable for online browsing using a pdf viewer.
PDF_HYPERLINKS = NO
# If the USE_PDFLATEX tag is set to YES, pdflatex will be used instead of
# plain latex in the generated Makefile. Set this option to YES to get a
# higher quality PDF documentation.
USE_PDFLATEX = NO
# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \\batchmode.
# command to the generated LaTeX files. This will instruct LaTeX to keep
# running if errors occur, instead of asking the user for help.
# This option is also used when generating formulas in HTML.
LATEX_BATCHMODE = NO
#---------------------------------------------------------------------------
# configuration options related to the RTF output
#---------------------------------------------------------------------------
# If the GENERATE_RTF tag is set to YES Doxygen will generate RTF output
# The RTF output is optimised for Word 97 and may not look very pretty with
# other RTF readers or editors.
GENERATE_RTF = YES
# The RTF_OUTPUT tag is used to specify where the RTF docs will be put.
# If a relative path is entered the value of OUTPUT_DIRECTORY will be
# put in front of it. If left blank `rtf' will be used as the default path.
RTF_OUTPUT = rtf
# If the COMPACT_RTF tag is set to YES Doxygen generates more compact
# RTF documents. This may be useful for small projects and may help to
# save some trees in general.
COMPACT_RTF = NO
# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated
# will contain hyperlink fields. The RTF file will
# contain links (just like the HTML output) instead of page references.
# This makes the output suitable for online browsing using WORD or other
# programs which support those fields.
# Note: wordpad (write) and others do not support links.
RTF_HYPERLINKS = NO
# Load stylesheet definitions from file. Syntax is similar to doxygen's
# config file, i.e. a series of assigments. You only have to provide
# replacements, missing definitions are set to their default value.
RTF_STYLESHEET_FILE =
# Set optional variables used in the generation of an rtf document.
# Syntax is similar to doxygen's config file.
RTF_EXTENSIONS_FILE =
#---------------------------------------------------------------------------
# configuration options related to the man page output
#---------------------------------------------------------------------------
# If the GENERATE_MAN tag is set to YES (the default) Doxygen will
# generate man pages
GENERATE_MAN = YES
# The MAN_OUTPUT tag is used to specify where the man pages will be put.
# If a relative path is entered the value of OUTPUT_DIRECTORY will be
# put in front of it. If left blank `man' will be used as the default path.
MAN_OUTPUT = man
# The MAN_EXTENSION tag determines the extension that is added to
# the generated man pages (default is the subroutine's section .3)
MAN_EXTENSION = .3
# If the MAN_LINKS tag is set to YES and Doxygen generates man output,
# then it will generate one additional man file for each entity
# documented in the real man page(s). These additional files
# only source the real man page, but without them the man command
# would be unable to find the correct page. The default is NO.
MAN_LINKS = YES
#---------------------------------------------------------------------------
# configuration options related to the XML output
#---------------------------------------------------------------------------
# If the GENERATE_XML tag is set to YES Doxygen will
# generate an XML file that captures the structure of
# the code including all documentation. Note that this
# feature is still experimental and incomplete at the
# moment.
GENERATE_XML = NO
#---------------------------------------------------------------------------
# configuration options for the AutoGen Definitions output
#---------------------------------------------------------------------------
# If the GENERATE_AUTOGEN_DEF tag is set to YES Doxygen will
# generate an AutoGen Definitions (see autogen.sf.net) file
# that captures the structure of the code including all
# documentation. Note that this feature is still experimental
# and incomplete at the moment.
GENERATE_AUTOGEN_DEF = NO
#---------------------------------------------------------------------------
# Configuration options related to the preprocessor
#---------------------------------------------------------------------------
# If the ENABLE_PREPROCESSING tag is set to YES (the default) Doxygen will
# evaluate all C-preprocessor directives found in the sources and include
# files.
ENABLE_PREPROCESSING = YES
# If the MACRO_EXPANSION tag is set to YES Doxygen will expand all macro
# names in the source code. If set to NO (the default) only conditional
# compilation will be performed. Macro expansion can be done in a controlled
# way by setting EXPAND_ONLY_PREDEF to YES.
MACRO_EXPANSION = YES
# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES
# then the macro expansion is limited to the macros specified with the
# PREDEFINED and EXPAND_AS_PREDEFINED tags.
EXPAND_ONLY_PREDEF = YES
# If the SEARCH_INCLUDES tag is set to YES (the default) the includes files
# in the INCLUDE_PATH (see below) will be search if a #include is found.
SEARCH_INCLUDES = YES
# The INCLUDE_PATH tag can be used to specify one or more directories that
# contain include files that are not input files but should be processed by
# the preprocessor.
INCLUDE_PATH =
# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
# patterns (like *.h and *.hpp) to filter out the header-files in the
# directories. If left blank, the patterns specified with FILE_PATTERNS will
# be used.
INCLUDE_FILE_PATTERNS =
# The PREDEFINED tag can be used to specify one or more macro names that
# are defined before the preprocessor is started (similar to the -D option of
# gcc). The argument of the tag is a list of macros of the form: name
# or name=definition (no spaces). If the definition and the = are
# omitted =1 is assumed.
PREDEFINED = DOXYGEN_SHOULD_IGNORE_THIS=1 SDLCALL= SNDDECLSPEC=
# If the MACRO_EXPANSION and EXPAND_PREDEF_ONLY tags are set to YES then
# this tag can be used to specify a list of macro names that should be expanded.
# The macro definition that is found in the sources will be used.
# Use the PREDEFINED tag if you want to use a different macro definition.
EXPAND_AS_DEFINED =
# If the SKIP_FUNCTION_MACROS tag is set to YES (the default) then
# doxygen's preprocessor will remove all function-like macros that are alone
# on a line and do not end with a semicolon. Such function macros are typically
# used for boiler-plate code, and will confuse the parser if not removed.
SKIP_FUNCTION_MACROS = YES
#---------------------------------------------------------------------------
# Configuration::addtions related to external references
#---------------------------------------------------------------------------
# The TAGFILES tag can be used to specify one or more tagfiles.
TAGFILES =
# When a file name is specified after GENERATE_TAGFILE, doxygen will create
# a tag file that is based on the input files it reads.
GENERATE_TAGFILE =
# If the ALLEXTERNALS tag is set to YES all external classes will be listed
# in the class index. If set to NO only the inherited external classes
# will be listed.
ALLEXTERNALS = NO
# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed
# in the modules index. If set to NO, only the current project's groups will
# be listed.
EXTERNAL_GROUPS = YES
# The PERL_PATH should be the absolute path and name of the perl script
# interpreter (i.e. the result of `which perl').
PERL_PATH = /usr/bin/perl
#---------------------------------------------------------------------------
# Configuration options related to the dot tool
#---------------------------------------------------------------------------
# If the CLASS_DIAGRAMS tag is set to YES (the default) Doxygen will
# generate a inheritance diagram (in Html, RTF and LaTeX) for classes with base or
# super classes. Setting the tag to NO turns the diagrams off. Note that this
# option is superceded by the HAVE_DOT option below. This is only a fallback. It is
# recommended to install and use dot, since it yields more powerful graphs.
CLASS_DIAGRAMS = NO
# If set to YES, the inheritance and collaboration graphs will hide
# inheritance and usage relations if the target is undocumented
# or is not a class.
HIDE_UNDOC_RELATIONS = YES
# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
# available from the path. This tool is part of Graphviz, a graph visualization
# toolkit from AT&T and Lucent Bell Labs. The other options in this section
# have no effect if this option is set to NO (the default)
HAVE_DOT = NO
# If the CLASS_GRAPH and HAVE_DOT tags are set to YES then doxygen
# will generate a graph for each documented class showing the direct and
# indirect inheritance relations. Setting this tag to YES will force the
# the CLASS_DIAGRAMS tag to NO.
CLASS_GRAPH = NO
# If the COLLABORATION_GRAPH and HAVE_DOT tags are set to YES then doxygen
# will generate a graph for each documented class showing the direct and
# indirect implementation dependencies (inheritance, containment, and
# class references variables) of the class with other documented classes.
COLLABORATION_GRAPH = NO
# If set to YES, the inheritance and collaboration graphs will show the
# relations between templates and their instances.
TEMPLATE_RELATIONS = NO
# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDE_GRAPH, and HAVE_DOT
# tags are set to YES then doxygen will generate a graph for each documented
# file showing the direct and indirect include dependencies of the file with
# other documented files.
INCLUDE_GRAPH = NO
# If the ENABLE_PREPROCESSING, SEARCH_INCLUDES, INCLUDED_BY_GRAPH, and
# HAVE_DOT tags are set to YES then doxygen will generate a graph for each
# documented header file showing the documented files that directly or
# indirectly include this file.
INCLUDED_BY_GRAPH = YES
# If the GRAPHICAL_HIERARCHY and HAVE_DOT tags are set to YES then doxygen
# will graphical hierarchy of all classes instead of a textual one.
GRAPHICAL_HIERARCHY = YES
# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
# generated by dot. Possible values are png, jpg, or gif
# If left blank png will be used.
DOT_IMAGE_FORMAT = png
# The tag DOT_PATH can be used to specify the path where the dot tool can be
# found. If left blank, it is assumed the dot tool can be found on the path.
DOT_PATH =
# The DOTFILE_DIRS tag can be used to specify one or more directories that
# contain dot files that are included in the documentation (see the
# \dotfile command).
DOTFILE_DIRS =
# The MAX_DOT_GRAPH_WIDTH tag can be used to set the maximum allowed width
# (in pixels) of the graphs generated by dot. If a graph becomes larger than
# this value, doxygen will try to truncate the graph, so that it fits within
# the specified constraint. Beware that most browsers cannot cope with very
# large images.
MAX_DOT_GRAPH_WIDTH = 1024
# The MAX_DOT_GRAPH_HEIGHT tag can be used to set the maximum allows height
# (in pixels) of the graphs generated by dot. If a graph becomes larger than
# this value, doxygen will try to truncate the graph, so that it fits within
# the specified constraint. Beware that most browsers cannot cope with very
# large images.
MAX_DOT_GRAPH_HEIGHT = 1024
# If the GENERATE_LEGEND tag is set to YES (the default) Doxygen will
# generate a legend page explaining the meaning of the various boxes and
# arrows in the dot generated graphs.
GENERATE_LEGEND = YES
# If the DOT_CLEANUP tag is set to YES (the default) Doxygen will
# remove the intermedate dot files that are used to generate
# the various graphs.
DOT_CLEANUP = YES
#---------------------------------------------------------------------------
# Configuration::addtions related to the search engine
#---------------------------------------------------------------------------
# The SEARCHENGINE tag specifies whether or not a search engine should be
# used. If set to NO the values of all tags below this one will be ignored.
SEARCHENGINE = NO
# The CGI_NAME tag should be the name of the CGI script that
# starts the search engine (doxysearch) with the correct parameters.
# A script with this name will be generated by doxygen.
CGI_NAME = search.cgi
# The CGI_URL tag should be the absolute URL to the directory where the
# cgi binaries are located. See the documentation of your http daemon for
# details.
CGI_URL =
# The DOC_URL tag should be the absolute URL to the directory where the
# documentation is located. If left blank the absolute path to the
# documentation, with file:// prepended to it, will be used.
DOC_URL =
# The DOC_ABSPATH tag should be the absolute path to the directory where the
# documentation is located. If left blank the directory on the local machine
# will be used.
DOC_ABSPATH =
# The BIN_ABSPATH tag must point to the directory where the doxysearch binary
# is installed.
BIN_ABSPATH = /usr/local/bin/
# The EXT_DOC_PATHS tag can be used to specify one or more paths to
# documentation generated for other projects. This allows doxysearch to search
# the documentation for these projects as well.
EXT_DOC_PATHS =

350
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Initialization code for SDL */
#include "SDL.h"
#include "SDL_fatal.h"
#if !SDL_VIDEO_DISABLED
#include "video/SDL_leaks.h"
#endif
#if SDL_THREAD_PTH
#include <pth.h>
#endif
/* Initialization/Cleanup routines */
#if !SDL_JOYSTICK_DISABLED
extern int SDL_JoystickInit(void);
extern void SDL_JoystickQuit(void);
#endif
#if !SDL_CDROM_DISABLED
extern int SDL_CDROMInit(void);
extern void SDL_CDROMQuit(void);
#endif
#if !SDL_TIMERS_DISABLED
extern void SDL_StartTicks(void);
extern int SDL_TimerInit(void);
extern void SDL_TimerQuit(void);
#endif
/* The current SDL version */
static SDL_version version =
{ SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL };
/* The initialized subsystems */
static Uint32 SDL_initialized = 0;
#if !SDL_TIMERS_DISABLED
static Uint32 ticks_started = 0;
#endif
#ifdef CHECK_LEAKS
int surfaces_allocated = 0;
#endif
int SDL_InitSubSystem(Uint32 flags)
{
#if !SDL_VIDEO_DISABLED
/* Initialize the video/event subsystem */
if ( (flags & SDL_INIT_VIDEO) && !(SDL_initialized & SDL_INIT_VIDEO) ) {
if ( SDL_VideoInit(SDL_getenv("SDL_VIDEODRIVER"),
(flags&SDL_INIT_EVENTTHREAD)) < 0 ) {
return(-1);
}
SDL_initialized |= SDL_INIT_VIDEO;
}
#else
if ( flags & SDL_INIT_VIDEO ) {
SDL_SetError("SDL not built with video support");
return(-1);
}
#endif
#if !SDL_AUDIO_DISABLED
/* Initialize the audio subsystem */
if ( (flags & SDL_INIT_AUDIO) && !(SDL_initialized & SDL_INIT_AUDIO) ) {
if ( SDL_AudioInit(SDL_getenv("SDL_AUDIODRIVER")) < 0 ) {
return(-1);
}
SDL_initialized |= SDL_INIT_AUDIO;
}
#else
if ( flags & SDL_INIT_AUDIO ) {
SDL_SetError("SDL not built with audio support");
return(-1);
}
#endif
#if !SDL_TIMERS_DISABLED
/* Initialize the timer subsystem */
if ( ! ticks_started ) {
SDL_StartTicks();
ticks_started = 1;
}
if ( (flags & SDL_INIT_TIMER) && !(SDL_initialized & SDL_INIT_TIMER) ) {
if ( SDL_TimerInit() < 0 ) {
return(-1);
}
SDL_initialized |= SDL_INIT_TIMER;
}
#else
if ( flags & SDL_INIT_TIMER ) {
SDL_SetError("SDL not built with timer support");
return(-1);
}
#endif
#if !SDL_JOYSTICK_DISABLED
/* Initialize the joystick subsystem */
if ( (flags & SDL_INIT_JOYSTICK) &&
!(SDL_initialized & SDL_INIT_JOYSTICK) ) {
if ( SDL_JoystickInit() < 0 ) {
return(-1);
}
SDL_initialized |= SDL_INIT_JOYSTICK;
}
#else
if ( flags & SDL_INIT_JOYSTICK ) {
SDL_SetError("SDL not built with joystick support");
return(-1);
}
#endif
#if !SDL_CDROM_DISABLED
/* Initialize the CD-ROM subsystem */
if ( (flags & SDL_INIT_CDROM) && !(SDL_initialized & SDL_INIT_CDROM) ) {
if ( SDL_CDROMInit() < 0 ) {
return(-1);
}
SDL_initialized |= SDL_INIT_CDROM;
}
#else
if ( flags & SDL_INIT_CDROM ) {
SDL_SetError("SDL not built with cdrom support");
return(-1);
}
#endif
return(0);
}
int SDL_Init(Uint32 flags)
{
#if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
if (!pth_init()) {
return -1;
}
#endif
/* Clear the error message */
SDL_ClearError();
/* Initialize the desired subsystems */
if ( SDL_InitSubSystem(flags) < 0 ) {
return(-1);
}
/* Everything is initialized */
if ( !(flags & SDL_INIT_NOPARACHUTE) ) {
SDL_InstallParachute();
}
return(0);
}
void SDL_QuitSubSystem(Uint32 flags)
{
/* Shut down requested initialized subsystems */
#if !SDL_CDROM_DISABLED
if ( (flags & SDL_initialized & SDL_INIT_CDROM) ) {
SDL_CDROMQuit();
SDL_initialized &= ~SDL_INIT_CDROM;
}
#endif
#if !SDL_JOYSTICK_DISABLED
if ( (flags & SDL_initialized & SDL_INIT_JOYSTICK) ) {
SDL_JoystickQuit();
SDL_initialized &= ~SDL_INIT_JOYSTICK;
}
#endif
#if !SDL_TIMERS_DISABLED
if ( (flags & SDL_initialized & SDL_INIT_TIMER) ) {
SDL_TimerQuit();
SDL_initialized &= ~SDL_INIT_TIMER;
}
#endif
#if !SDL_AUDIO_DISABLED
if ( (flags & SDL_initialized & SDL_INIT_AUDIO) ) {
SDL_AudioQuit();
SDL_initialized &= ~SDL_INIT_AUDIO;
}
#endif
#if !SDL_VIDEO_DISABLED
if ( (flags & SDL_initialized & SDL_INIT_VIDEO) ) {
SDL_VideoQuit();
SDL_initialized &= ~SDL_INIT_VIDEO;
}
#endif
}
Uint32 SDL_WasInit(Uint32 flags)
{
if ( ! flags ) {
flags = SDL_INIT_EVERYTHING;
}
return (SDL_initialized&flags);
}
void SDL_Quit(void)
{
/* Quit all subsystems */
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : Enter! Calling QuitSubSystem()\n"); fflush(stdout);
#endif
SDL_QuitSubSystem(SDL_INIT_EVERYTHING);
#ifdef CHECK_LEAKS
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : CHECK_LEAKS\n"); fflush(stdout);
#endif
/* Print the number of surfaces not freed */
if ( surfaces_allocated != 0 ) {
fprintf(stderr, "SDL Warning: %d SDL surfaces extant\n",
surfaces_allocated);
}
#endif
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : SDL_UninstallParachute()\n"); fflush(stdout);
#endif
/* Uninstall any parachute signal handlers */
SDL_UninstallParachute();
#if !SDL_THREADS_DISABLED && SDL_THREAD_PTH
pth_kill();
#endif
#ifdef DEBUG_BUILD
printf("[SDL_Quit] : Returning!\n"); fflush(stdout);
#endif
}
/* Return the library version number */
const SDL_version * SDL_Linked_Version(void)
{
return(&version);
}
#if defined(__OS2__)
/* Building for OS/2 */
#ifdef __WATCOMC__
#define INCL_DOSERRORS
#define INCL_DOSEXCEPTIONS
#include <os2.h>
/* Exception handler to prevent the Audio thread hanging, making a zombie process! */
ULONG _System SDL_Main_ExceptionHandler(PEXCEPTIONREPORTRECORD pERepRec,
PEXCEPTIONREGISTRATIONRECORD pERegRec,
PCONTEXTRECORD pCtxRec,
PVOID p)
{
if (pERepRec->fHandlerFlags & EH_EXIT_UNWIND)
return XCPT_CONTINUE_SEARCH;
if (pERepRec->fHandlerFlags & EH_UNWINDING)
return XCPT_CONTINUE_SEARCH;
if (pERepRec->fHandlerFlags & EH_NESTED_CALL)
return XCPT_CONTINUE_SEARCH;
/* Do cleanup at every fatal exception! */
if (((pERepRec->ExceptionNum & XCPT_SEVERITY_CODE) == XCPT_FATAL_EXCEPTION) &&
(pERepRec->ExceptionNum != XCPT_BREAKPOINT) &&
(pERepRec->ExceptionNum != XCPT_SINGLE_STEP)
)
{
if (SDL_initialized & SDL_INIT_AUDIO)
{
/* This removes the zombie audio thread in case of emergency. */
#ifdef DEBUG_BUILD
printf("[SDL_Main_ExceptionHandler] : Calling SDL_CloseAudio()!\n");
#endif
SDL_CloseAudio();
}
}
return (XCPT_CONTINUE_SEARCH);
}
EXCEPTIONREGISTRATIONRECORD SDL_Main_xcpthand = {0, SDL_Main_ExceptionHandler};
/* The main DLL entry for DLL Initialization and Uninitialization: */
unsigned _System LibMain(unsigned hmod, unsigned termination)
{
if (termination)
{
#ifdef DEBUG_BUILD
/* printf("[SDL DLL Unintialization] : Removing exception handler\n"); */
#endif
DosUnsetExceptionHandler(&SDL_Main_xcpthand);
return 1;
} else
{
#ifdef DEBUG_BUILD
/* Make stdout and stderr unbuffered! */
setbuf(stdout, NULL);
setbuf(stderr, NULL);
#endif
/* Fire up exception handler */
#ifdef DEBUG_BUILD
/* printf("[SDL DLL Initialization] : Setting exception handler\n"); */
#endif
/* Set exception handler */
DosSetExceptionHandler(&SDL_Main_xcpthand);
return 1;
}
}
#endif /* __WATCOMC__ */
#elif defined(__WIN32__) && !defined(__SYMBIAN32__)
#if !defined(HAVE_LIBC) || (defined(__WATCOMC__) && defined(BUILD_DLL))
/* Need to include DllMain() on Watcom C for some reason.. */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
BOOL APIENTRY _DllMainCRTStartup( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved )
{
switch (ul_reason_for_call) {
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}
#endif /* building DLL with Watcom C */
#endif /* OS/2 elif __WIN32__ */

238
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Simple error handling in SDL */
#include "SDL_error.h"
#include "SDL_error_c.h"
/* Routine to get the thread-specific error variable */
#if SDL_THREADS_DISABLED
/* The SDL_arraysize(The ),default (non-thread-safe) global error variable */
static SDL_error SDL_global_error;
#define SDL_GetErrBuf() (&SDL_global_error)
#else
extern SDL_error *SDL_GetErrBuf(void);
#endif /* SDL_THREADS_DISABLED */
#define SDL_ERRBUFIZE 1024
/* Private functions */
static const char *SDL_LookupString(const char *key)
{
/* FIXME: Add code to lookup key in language string hash-table */
return key;
}
/* Public functions */
void SDL_SetError (const char *fmt, ...)
{
va_list ap;
SDL_error *error;
/* Copy in the key, mark error as valid */
error = SDL_GetErrBuf();
error->error = 1;
SDL_strlcpy((char *)error->key, fmt, sizeof(error->key));
va_start(ap, fmt);
error->argc = 0;
while ( *fmt ) {
if ( *fmt++ == '%' ) {
while ( *fmt == '.' || (*fmt >= '0' && *fmt <= '9') ) {
++fmt;
}
switch (*fmt++) {
case 0: /* Malformed format string.. */
--fmt;
break;
case 'c':
case 'i':
case 'd':
case 'u':
case 'o':
case 'x':
case 'X':
error->args[error->argc++].value_i =
va_arg(ap, int);
break;
case 'f':
error->args[error->argc++].value_f =
va_arg(ap, double);
break;
case 'p':
error->args[error->argc++].value_ptr =
va_arg(ap, void *);
break;
case 's':
{
int i = error->argc;
const char *str = va_arg(ap, const char *);
if (str == NULL)
str = "(null)";
SDL_strlcpy((char *)error->args[i].buf, str, ERR_MAX_STRLEN);
error->argc++;
}
break;
default:
break;
}
if ( error->argc >= ERR_MAX_ARGS ) {
break;
}
}
}
va_end(ap);
/* If we are in debug mode, print out an error message */
#ifdef DEBUG_ERROR
fprintf(stderr, "SDL_SetError: %s\n", SDL_GetError());
#endif
}
/* This function has a bit more overhead than most error functions
so that it supports internationalization and thread-safe errors.
*/
char *SDL_GetErrorMsg(char *errstr, unsigned int maxlen)
{
SDL_error *error;
/* Clear the error string */
*errstr = '\0'; --maxlen;
/* Get the thread-safe error, and print it out */
error = SDL_GetErrBuf();
if ( error->error ) {
const char *fmt;
char *msg = errstr;
int len;
int argi;
fmt = SDL_LookupString(error->key);
argi = 0;
while ( *fmt && (maxlen > 0) ) {
if ( *fmt == '%' ) {
char tmp[32], *spot = tmp;
*spot++ = *fmt++;
while ( (*fmt == '.' || (*fmt >= '0' && *fmt <= '9')) && spot < (tmp+SDL_arraysize(tmp)-2) ) {
*spot++ = *fmt++;
}
*spot++ = *fmt++;
*spot++ = '\0';
switch (spot[-2]) {
case '%':
*msg++ = '%';
maxlen -= 1;
break;
case 'c':
case 'i':
case 'd':
case 'u':
case 'o':
case 'x':
case 'X':
len = SDL_snprintf(msg, maxlen, tmp, error->args[argi++].value_i);
msg += len;
maxlen -= len;
break;
case 'f':
len = SDL_snprintf(msg, maxlen, tmp, error->args[argi++].value_f);
msg += len;
maxlen -= len;
break;
case 'p':
len = SDL_snprintf(msg, maxlen, tmp, error->args[argi++].value_ptr);
msg += len;
maxlen -= len;
break;
case 's':
len = SDL_snprintf(msg, maxlen, tmp, SDL_LookupString(error->args[argi++].buf));
msg += len;
maxlen -= len;
break;
}
} else {
*msg++ = *fmt++;
maxlen -= 1;
}
}
*msg = 0; /* NULL terminate the string */
}
return(errstr);
}
/* Available for backwards compatibility */
char *SDL_GetError (void)
{
static char errmsg[SDL_ERRBUFIZE];
return((char *)SDL_GetErrorMsg(errmsg, SDL_ERRBUFIZE));
}
void SDL_ClearError(void)
{
SDL_error *error;
error = SDL_GetErrBuf();
error->error = 0;
}
/* Very common errors go here */
void SDL_Error(SDL_errorcode code)
{
switch (code) {
case SDL_ENOMEM:
SDL_SetError("Out of memory");
break;
case SDL_EFREAD:
SDL_SetError("Error reading from datastream");
break;
case SDL_EFWRITE:
SDL_SetError("Error writing to datastream");
break;
case SDL_EFSEEK:
SDL_SetError("Error seeking in datastream");
break;
default:
SDL_SetError("Unknown SDL error");
break;
}
}
#ifdef TEST_ERROR
int main(int argc, char *argv[])
{
char buffer[BUFSIZ+1];
SDL_SetError("Hi there!");
printf("Error 1: %s\n", SDL_GetError());
SDL_ClearError();
SDL_memset(buffer, '1', BUFSIZ);
buffer[BUFSIZ] = 0;
SDL_SetError("This is the error: %s (%f)", buffer, 1.0);
printf("Error 2: %s\n", SDL_GetError());
exit(0);
}
#endif

58
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* This file defines a structure that carries language-independent
error messages
*/
#ifndef _SDL_error_c_h
#define _SDL_error_c_h
#define ERR_MAX_STRLEN 128
#define ERR_MAX_ARGS 5
typedef struct SDL_error {
/* This is a numeric value corresponding to the current error */
int error;
/* This is a key used to index into a language hashtable containing
internationalized versions of the SDL error messages. If the key
is not in the hashtable, or no hashtable is available, the key is
used directly as an error message format string.
*/
char key[ERR_MAX_STRLEN];
/* These are the arguments for the error functions */
int argc;
union {
void *value_ptr;
#if 0 /* What is a character anyway? (UNICODE issues) */
unsigned char value_c;
#endif
int value_i;
double value_f;
char buf[ERR_MAX_STRLEN];
} args[ERR_MAX_ARGS];
} SDL_error;
#endif /* _SDL_error_c_h */

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alienblaster/project/sdl/sdl-1.2/src/SDL_fatal.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* General fatal signal handling code for SDL */
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#include "SDL.h"
#include "SDL_fatal.h"
/* This installs some signal handlers for the more common fatal signals,
so that if the programmer is lazy, the app doesn't die so horribly if
the program crashes.
*/
static void SDL_Parachute(int sig)
{
signal(sig, SIG_DFL);
SDL_Quit();
raise(sig);
}
static int SDL_fatal_signals[] = {
SIGSEGV,
#ifdef SIGBUS
SIGBUS,
#endif
#ifdef SIGFPE
SIGFPE,
#endif
#ifdef SIGQUIT
SIGQUIT,
#endif
0
};
void SDL_InstallParachute(void)
{
/* Set a handler for any fatal signal not already handled */
int i;
#ifdef HAVE_SIGACTION
struct sigaction action;
for ( i=0; SDL_fatal_signals[i]; ++i ) {
sigaction(SDL_fatal_signals[i], NULL, &action);
if ( action.sa_handler == SIG_DFL ) {
action.sa_handler = SDL_Parachute;
sigaction(SDL_fatal_signals[i], &action, NULL);
}
}
#ifdef SIGALRM
/* Set SIGALRM to be ignored -- necessary on Solaris */
sigaction(SIGALRM, NULL, &action);
if ( action.sa_handler == SIG_DFL ) {
action.sa_handler = SIG_IGN;
sigaction(SIGALRM, &action, NULL);
}
#endif
#else
void (*ohandler)(int);
for ( i=0; SDL_fatal_signals[i]; ++i ) {
ohandler = signal(SDL_fatal_signals[i], SDL_Parachute);
if ( ohandler != SIG_DFL ) {
signal(SDL_fatal_signals[i], ohandler);
}
}
#endif /* HAVE_SIGACTION */
return;
}
void SDL_UninstallParachute(void)
{
/* Remove a handler for any fatal signal handled */
int i;
#ifdef HAVE_SIGACTION
struct sigaction action;
for ( i=0; SDL_fatal_signals[i]; ++i ) {
sigaction(SDL_fatal_signals[i], NULL, &action);
if ( action.sa_handler == SDL_Parachute ) {
action.sa_handler = SIG_DFL;
sigaction(SDL_fatal_signals[i], &action, NULL);
}
}
#else
void (*ohandler)(int);
for ( i=0; SDL_fatal_signals[i]; ++i ) {
ohandler = signal(SDL_fatal_signals[i], SIG_DFL);
if ( ohandler != SDL_Parachute ) {
signal(SDL_fatal_signals[i], ohandler);
}
}
#endif /* HAVE_SIGACTION */
}
#else
/* No signals on this platform, nothing to do.. */
void SDL_InstallParachute(void)
{
return;
}
void SDL_UninstallParachute(void)
{
return;
}
#endif /* HAVE_SIGNAL_H */

28
alienblaster/project/sdl/sdl-1.2/src/SDL_fatal.h Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* General fatal signal handling code for SDL */
extern void SDL_InstallParachute(void);
extern void SDL_UninstallParachute(void);

706
alienblaster/project/sdl/sdl-1.2/src/audio/SDL_audio.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include "SDL.h"
#include "SDL_audio_c.h"
#include "SDL_audiomem.h"
#include "SDL_sysaudio.h"
#ifdef __OS2__
/* We'll need the DosSetPriority() API! */
#define INCL_DOSPROCESS
#include <os2.h>
#endif
/* Available audio drivers */
static AudioBootStrap *bootstrap[] = {
#if SDL_AUDIO_DRIVER_BSD
&BSD_AUDIO_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_PULSE
&PULSE_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_ALSA
&ALSA_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_OSS
&DSP_bootstrap,
&DMA_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_QNXNTO
&QNXNTOAUDIO_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_SUNAUDIO
&SUNAUDIO_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_DMEDIA
&DMEDIA_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_ARTS
&ARTS_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_ESD
&ESD_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_NAS
&NAS_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_DSOUND
&DSOUND_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_WAVEOUT
&WAVEOUT_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_PAUD
&Paud_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_BAUDIO
&BAUDIO_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_COREAUDIO
&COREAUDIO_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_SNDMGR
&SNDMGR_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_MINT
&MINTAUDIO_GSXB_bootstrap,
&MINTAUDIO_MCSN_bootstrap,
&MINTAUDIO_STFA_bootstrap,
&MINTAUDIO_XBIOS_bootstrap,
&MINTAUDIO_DMA8_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_DISK
&DISKAUD_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_DUMMY
&DUMMYAUD_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_DC
&DCAUD_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_NDS
&NDSAUD_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_MMEAUDIO
&MMEAUDIO_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_DART
&DART_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_EPOCAUDIO
&EPOCAudio_bootstrap,
#endif
#if SDL_AUDIO_DRIVER_ANDROID
&ANDROIDAUD_bootstrap,
#endif
NULL
};
SDL_AudioDevice *current_audio = NULL;
/* Various local functions */
int SDL_AudioInit(const char *driver_name);
void SDL_AudioQuit(void);
/* The general mixing thread function */
int SDLCALL SDL_RunAudio(void *audiop)
{
SDL_AudioDevice *audio = (SDL_AudioDevice *)audiop;
Uint8 *stream;
int stream_len;
void *udata;
void (SDLCALL *fill)(void *userdata,Uint8 *stream, int len);
int silence;
/* Perform any thread setup */
if ( audio->ThreadInit ) {
audio->ThreadInit(audio);
}
audio->threadid = SDL_ThreadID();
/* Set up the mixing function */
fill = audio->spec.callback;
udata = audio->spec.userdata;
if ( audio->convert.needed ) {
if ( audio->convert.src_format == AUDIO_U8 ) {
silence = 0x80;
} else {
silence = 0;
}
stream_len = audio->convert.len;
} else {
silence = audio->spec.silence;
stream_len = audio->spec.size;
}
#ifdef __OS2__
/* Increase the priority of this thread to make sure that
the audio will be continuous all the time! */
#ifdef USE_DOSSETPRIORITY
if (SDL_getenv("SDL_USE_TIMECRITICAL_AUDIO"))
{
#ifdef DEBUG_BUILD
printf("[SDL_RunAudio] : Setting priority to TimeCritical+0! (TID%d)\n", SDL_ThreadID());
#endif
DosSetPriority(PRTYS_THREAD, PRTYC_TIMECRITICAL, 0, 0);
}
else
{
#ifdef DEBUG_BUILD
printf("[SDL_RunAudio] : Setting priority to ForegroundServer+0! (TID%d)\n", SDL_ThreadID());
#endif
DosSetPriority(PRTYS_THREAD, PRTYC_FOREGROUNDSERVER, 0, 0);
}
#endif
#endif
/* Loop, filling the audio buffers */
while ( audio->enabled ) {
/* Fill the current buffer with sound */
if ( audio->convert.needed ) {
if ( audio->convert.buf ) {
stream = audio->convert.buf;
} else {
continue;
}
} else {
stream = audio->GetAudioBuf(audio);
if ( stream == NULL ) {
stream = audio->fake_stream;
}
}
SDL_memset(stream, silence, stream_len);
if ( ! audio->paused ) {
SDL_mutexP(audio->mixer_lock);
(*fill)(udata, stream, stream_len);
SDL_mutexV(audio->mixer_lock);
}
/* Convert the audio if necessary */
if ( audio->convert.needed ) {
SDL_ConvertAudio(&audio->convert);
stream = audio->GetAudioBuf(audio);
if ( stream == NULL ) {
stream = audio->fake_stream;
}
SDL_memcpy(stream, audio->convert.buf,
audio->convert.len_cvt);
}
/* Ready current buffer for play and change current buffer */
if ( stream != audio->fake_stream ) {
audio->PlayAudio(audio);
}
/* Wait for an audio buffer to become available */
if ( stream == audio->fake_stream ) {
SDL_Delay((audio->spec.samples*1000)/audio->spec.freq);
} else {
audio->WaitAudio(audio);
}
}
/* Wait for the audio to drain.. */
if ( audio->WaitDone ) {
audio->WaitDone(audio);
}
#ifdef __OS2__
#ifdef DEBUG_BUILD
printf("[SDL_RunAudio] : Task exiting. (TID%d)\n", SDL_ThreadID());
#endif
#endif
return(0);
}
static void SDL_LockAudio_Default(SDL_AudioDevice *audio)
{
if ( audio->thread && (SDL_ThreadID() == audio->threadid) ) {
return;
}
SDL_mutexP(audio->mixer_lock);
}
static void SDL_UnlockAudio_Default(SDL_AudioDevice *audio)
{
if ( audio->thread && (SDL_ThreadID() == audio->threadid) ) {
return;
}
SDL_mutexV(audio->mixer_lock);
}
static Uint16 SDL_ParseAudioFormat(const char *string)
{
Uint16 format = 0;
switch (*string) {
case 'U':
++string;
format |= 0x0000;
break;
case 'S':
++string;
format |= 0x8000;
break;
default:
return 0;
}
switch (SDL_atoi(string)) {
case 8:
string += 1;
format |= 8;
break;
case 16:
string += 2;
format |= 16;
if ( SDL_strcmp(string, "LSB") == 0
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
|| SDL_strcmp(string, "SYS") == 0
#endif
) {
format |= 0x0000;
}
if ( SDL_strcmp(string, "MSB") == 0
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
|| SDL_strcmp(string, "SYS") == 0
#endif
) {
format |= 0x1000;
}
break;
default:
return 0;
}
return format;
}
int SDL_AudioInit(const char *driver_name)
{
SDL_AudioDevice *audio;
int i = 0, idx;
/* Check to make sure we don't overwrite 'current_audio' */
if ( current_audio != NULL ) {
SDL_AudioQuit();
}
/* Select the proper audio driver */
audio = NULL;
idx = 0;
#if SDL_AUDIO_DRIVER_ESD
if ( (driver_name == NULL) && (SDL_getenv("ESPEAKER") != NULL) ) {
/* Ahem, we know that if ESPEAKER is set, user probably wants
to use ESD, but don't start it if it's not already running.
This probably isn't the place to do this, but... Shh! :)
*/
for ( i=0; bootstrap[i]; ++i ) {
if ( SDL_strcasecmp(bootstrap[i]->name, "esd") == 0 ) {
#ifdef HAVE_PUTENV
const char *esd_no_spawn;
/* Don't start ESD if it's not running */
esd_no_spawn = getenv("ESD_NO_SPAWN");
if ( esd_no_spawn == NULL ) {
putenv("ESD_NO_SPAWN=1");
}
#endif
if ( bootstrap[i]->available() ) {
audio = bootstrap[i]->create(0);
break;
}
#ifdef HAVE_UNSETENV
if ( esd_no_spawn == NULL ) {
unsetenv("ESD_NO_SPAWN");
}
#endif
}
}
}
#endif /* SDL_AUDIO_DRIVER_ESD */
if ( audio == NULL ) {
if ( driver_name != NULL ) {
#if 0 /* This will be replaced with a better driver selection API */
if ( SDL_strrchr(driver_name, ':') != NULL ) {
idx = atoi(SDL_strrchr(driver_name, ':')+1);
}
#endif
for ( i=0; bootstrap[i]; ++i ) {
if (SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) {
if ( bootstrap[i]->available() ) {
audio=bootstrap[i]->create(idx);
break;
}
}
}
} else {
for ( i=0; bootstrap[i]; ++i ) {
if ( bootstrap[i]->available() ) {
audio = bootstrap[i]->create(idx);
if ( audio != NULL ) {
break;
}
}
}
}
if ( audio == NULL ) {
SDL_SetError("No available audio device");
#if 0 /* Don't fail SDL_Init() if audio isn't available.
SDL_OpenAudio() will handle it at that point. *sigh*
*/
return(-1);
#endif
}
}
current_audio = audio;
if ( current_audio ) {
current_audio->name = bootstrap[i]->name;
if ( !current_audio->LockAudio && !current_audio->UnlockAudio ) {
current_audio->LockAudio = SDL_LockAudio_Default;
current_audio->UnlockAudio = SDL_UnlockAudio_Default;
}
}
return(0);
}
char *SDL_AudioDriverName(char *namebuf, int maxlen)
{
if ( current_audio != NULL ) {
SDL_strlcpy(namebuf, current_audio->name, maxlen);
return(namebuf);
}
return(NULL);
}
int SDL_OpenAudio(SDL_AudioSpec *desired, SDL_AudioSpec *obtained)
{
SDL_AudioDevice *audio;
const char *env;
/* Start up the audio driver, if necessary */
if ( ! current_audio ) {
if ( (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) ||
(current_audio == NULL) ) {
return(-1);
}
}
audio = current_audio;
if (audio->opened) {
SDL_SetError("Audio device is already opened");
return(-1);
}
/* Verify some parameters */
if ( desired->freq == 0 ) {
env = SDL_getenv("SDL_AUDIO_FREQUENCY");
if ( env ) {
desired->freq = SDL_atoi(env);
}
}
if ( desired->freq == 0 ) {
/* Pick some default audio frequency */
desired->freq = 22050;
}
if ( desired->format == 0 ) {
env = SDL_getenv("SDL_AUDIO_FORMAT");
if ( env ) {
desired->format = SDL_ParseAudioFormat(env);
}
}
if ( desired->format == 0 ) {
/* Pick some default audio format */
desired->format = AUDIO_S16;
}
if ( desired->channels == 0 ) {
env = SDL_getenv("SDL_AUDIO_CHANNELS");
if ( env ) {
desired->channels = (Uint8)SDL_atoi(env);
}
}
if ( desired->channels == 0 ) {
/* Pick a default number of channels */
desired->channels = 2;
}
switch ( desired->channels ) {
case 1: /* Mono */
case 2: /* Stereo */
case 4: /* surround */
case 6: /* surround with center and lfe */
break;
default:
SDL_SetError("1 (mono) and 2 (stereo) channels supported");
return(-1);
}
if ( desired->samples == 0 ) {
env = SDL_getenv("SDL_AUDIO_SAMPLES");
if ( env ) {
desired->samples = (Uint16)SDL_atoi(env);
}
}
if ( desired->samples == 0 ) {
/* Pick a default of ~46 ms at desired frequency */
int samples = (desired->freq / 1000) * 46;
int power2 = 1;
while ( power2 < samples ) {
power2 *= 2;
}
desired->samples = power2;
}
if ( desired->callback == NULL ) {
SDL_SetError("SDL_OpenAudio() passed a NULL callback");
return(-1);
}
#if SDL_THREADS_DISABLED
/* Uses interrupt driven audio, without thread */
#else
/* Create a semaphore for locking the sound buffers */
audio->mixer_lock = SDL_CreateMutex();
if ( audio->mixer_lock == NULL ) {
SDL_SetError("Couldn't create mixer lock");
SDL_CloseAudio();
return(-1);
}
#endif /* SDL_THREADS_DISABLED */
/* Calculate the silence and size of the audio specification */
SDL_CalculateAudioSpec(desired);
/* Open the audio subsystem */
SDL_memcpy(&audio->spec, desired, sizeof(audio->spec));
audio->convert.needed = 0;
audio->enabled = 1;
audio->paused = 1;
audio->opened = audio->OpenAudio(audio, &audio->spec)+1;
if ( ! audio->opened ) {
SDL_CloseAudio();
return(-1);
}
/* If the audio driver changes the buffer size, accept it */
if ( audio->spec.samples != desired->samples ) {
desired->samples = audio->spec.samples;
SDL_CalculateAudioSpec(desired);
}
/* Allocate a fake audio memory buffer */
audio->fake_stream = SDL_AllocAudioMem(audio->spec.size);
if ( audio->fake_stream == NULL ) {
SDL_CloseAudio();
SDL_OutOfMemory();
return(-1);
}
/* See if we need to do any conversion */
if ( obtained != NULL ) {
SDL_memcpy(obtained, &audio->spec, sizeof(audio->spec));
} else if ( desired->freq != audio->spec.freq ||
desired->format != audio->spec.format ||
desired->channels != audio->spec.channels ) {
/* Build an audio conversion block */
if ( SDL_BuildAudioCVT(&audio->convert,
desired->format, desired->channels,
desired->freq,
audio->spec.format, audio->spec.channels,
audio->spec.freq) < 0 ) {
SDL_CloseAudio();
return(-1);
}
if ( audio->convert.needed ) {
audio->convert.len = (int) ( ((double) audio->spec.size) /
audio->convert.len_ratio );
audio->convert.buf =(Uint8 *)SDL_AllocAudioMem(
audio->convert.len*audio->convert.len_mult);
if ( audio->convert.buf == NULL ) {
SDL_CloseAudio();
SDL_OutOfMemory();
return(-1);
}
}
}
/* Start the audio thread if necessary */
switch (audio->opened) {
case 1:
/* Start the audio thread */
#if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC) && !defined(__SYMBIAN32__)
#undef SDL_CreateThread
audio->thread = SDL_CreateThread(SDL_RunAudio, audio, NULL, NULL);
#else
audio->thread = SDL_CreateThread(SDL_RunAudio, audio);
#endif
if ( audio->thread == NULL ) {
SDL_CloseAudio();
SDL_SetError("Couldn't create audio thread");
return(-1);
}
break;
default:
/* The audio is now playing */
break;
}
return(0);
}
SDL_audiostatus SDL_GetAudioStatus(void)
{
SDL_AudioDevice *audio = current_audio;
SDL_audiostatus status;
status = SDL_AUDIO_STOPPED;
if ( audio && audio->enabled ) {
if ( audio->paused ) {
status = SDL_AUDIO_PAUSED;
} else {
status = SDL_AUDIO_PLAYING;
}
}
return(status);
}
void SDL_PauseAudio (int pause_on)
{
SDL_AudioDevice *audio = current_audio;
if ( audio ) {
audio->paused = pause_on;
}
}
void SDL_LockAudio (void)
{
SDL_AudioDevice *audio = current_audio;
/* Obtain a lock on the mixing buffers */
if ( audio && audio->LockAudio ) {
audio->LockAudio(audio);
}
}
void SDL_UnlockAudio (void)
{
SDL_AudioDevice *audio = current_audio;
/* Release lock on the mixing buffers */
if ( audio && audio->UnlockAudio ) {
audio->UnlockAudio(audio);
}
}
void SDL_CloseAudio (void)
{
SDL_QuitSubSystem(SDL_INIT_AUDIO);
}
void SDL_AudioQuit(void)
{
SDL_AudioDevice *audio = current_audio;
if ( audio ) {
audio->enabled = 0;
if ( audio->thread != NULL ) {
SDL_WaitThread(audio->thread, NULL);
}
if ( audio->mixer_lock != NULL ) {
SDL_DestroyMutex(audio->mixer_lock);
}
if ( audio->fake_stream != NULL ) {
SDL_FreeAudioMem(audio->fake_stream);
}
if ( audio->convert.needed ) {
SDL_FreeAudioMem(audio->convert.buf);
}
if ( audio->opened ) {
audio->CloseAudio(audio);
audio->opened = 0;
}
/* Free the driver data */
audio->free(audio);
current_audio = NULL;
}
}
#define NUM_FORMATS 6
static int format_idx;
static int format_idx_sub;
static Uint16 format_list[NUM_FORMATS][NUM_FORMATS] = {
{ AUDIO_U8, AUDIO_S8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB },
{ AUDIO_S8, AUDIO_U8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB },
{ AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, AUDIO_S8 },
{ AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8 },
{ AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U8, AUDIO_S8 },
{ AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_U8, AUDIO_S8 },
};
Uint16 SDL_FirstAudioFormat(Uint16 format)
{
for ( format_idx=0; format_idx < NUM_FORMATS; ++format_idx ) {
if ( format_list[format_idx][0] == format ) {
break;
}
}
format_idx_sub = 0;
return(SDL_NextAudioFormat());
}
Uint16 SDL_NextAudioFormat(void)
{
if ( (format_idx == NUM_FORMATS) || (format_idx_sub == NUM_FORMATS) ) {
return(0);
}
return(format_list[format_idx][format_idx_sub++]);
}
void SDL_CalculateAudioSpec(SDL_AudioSpec *spec)
{
switch (spec->format) {
case AUDIO_U8:
spec->silence = 0x80;
break;
default:
spec->silence = 0x00;
break;
}
spec->size = (spec->format&0xFF)/8;
spec->size *= spec->channels;
spec->size *= spec->samples;
}
void SDL_Audio_SetCaption(const char *caption)
{
if ((current_audio) && (current_audio->SetCaption)) {
current_audio->SetCaption(current_audio, caption);
}
}

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Functions and variables exported from SDL_audio.c for SDL_sysaudio.c */
/* Functions to get a list of "close" audio formats */
extern Uint16 SDL_FirstAudioFormat(Uint16 format);
extern Uint16 SDL_NextAudioFormat(void);
/* Function to calculate the size and silence for a SDL_AudioSpec */
extern void SDL_CalculateAudioSpec(SDL_AudioSpec *spec);
/* The actual mixing thread function */
extern int SDLCALL SDL_RunAudio(void *audiop);

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Get the name of the audio device we use for output */
#if SDL_AUDIO_DRIVER_BSD || SDL_AUDIO_DRIVER_OSS || SDL_AUDIO_DRIVER_SUNAUDIO
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include "SDL_stdinc.h"
#include "SDL_audiodev_c.h"
#ifndef _PATH_DEV_DSP
#if defined(__NETBSD__) || defined(__OPENBSD__)
#define _PATH_DEV_DSP "/dev/audio"
#else
#define _PATH_DEV_DSP "/dev/dsp"
#endif
#endif
#ifndef _PATH_DEV_DSP24
#define _PATH_DEV_DSP24 "/dev/sound/dsp"
#endif
#ifndef _PATH_DEV_AUDIO
#define _PATH_DEV_AUDIO "/dev/audio"
#endif
int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic)
{
const char *audiodev;
int audio_fd;
char audiopath[1024];
/* Figure out what our audio device is */
if ( ((audiodev=SDL_getenv("SDL_PATH_DSP")) == NULL) &&
((audiodev=SDL_getenv("AUDIODEV")) == NULL) ) {
if ( classic ) {
audiodev = _PATH_DEV_AUDIO;
} else {
struct stat sb;
/* Added support for /dev/sound/\* in Linux 2.4 */
if ( ((stat("/dev/sound", &sb) == 0) && S_ISDIR(sb.st_mode)) &&
((stat(_PATH_DEV_DSP24, &sb) == 0) && S_ISCHR(sb.st_mode)) ) {
audiodev = _PATH_DEV_DSP24;
} else {
audiodev = _PATH_DEV_DSP;
}
}
}
audio_fd = open(audiodev, flags, 0);
/* If the first open fails, look for other devices */
if ( (audio_fd < 0) && (SDL_strlen(audiodev) < (sizeof(audiopath)-3)) ) {
int exists, instance;
struct stat sb;
instance = 1;
do { /* Don't use errno ENOENT - it may not be thread-safe */
SDL_snprintf(audiopath, SDL_arraysize(audiopath),
"%s%d", audiodev, instance++);
exists = 0;
if ( stat(audiopath, &sb) == 0 ) {
exists = 1;
audio_fd = open(audiopath, flags, 0);
}
} while ( exists && (audio_fd < 0) );
audiodev = audiopath;
}
if ( path != NULL ) {
SDL_strlcpy(path, audiodev, maxlen);
path[maxlen-1] = '\0';
}
return(audio_fd);
}
#elif SDL_AUDIO_DRIVER_PAUD
/* Get the name of the audio device we use for output */
#include <sys/types.h>
#include <sys/stat.h>
#include "SDL_stdinc.h"
#include "SDL_audiodev_c.h"
#ifndef _PATH_DEV_DSP
#define _PATH_DEV_DSP "/dev/%caud%c/%c"
#endif
char devsettings[][3] =
{
{ 'p', '0', '1' }, { 'p', '0', '2' }, { 'p', '0', '3' }, { 'p', '0', '4' },
{ 'p', '1', '1' }, { 'p', '1', '2' }, { 'p', '1', '3' }, { 'p', '1', '4' },
{ 'p', '2', '1' }, { 'p', '2', '2' }, { 'p', '2', '3' }, { 'p', '2', '4' },
{ 'p', '3', '1' }, { 'p', '3', '2' }, { 'p', '3', '3' }, { 'p', '3', '4' },
{ 'b', '0', '1' }, { 'b', '0', '2' }, { 'b', '0', '3' }, { 'b', '0', '4' },
{ 'b', '1', '1' }, { 'b', '1', '2' }, { 'b', '1', '3' }, { 'b', '1', '4' },
{ 'b', '2', '1' }, { 'b', '2', '2' }, { 'b', '2', '3' }, { 'b', '2', '4' },
{ 'b', '3', '1' }, { 'b', '3', '2' }, { 'b', '3', '3' }, { 'b', '3', '4' },
{ '\0', '\0', '\0' }
};
static int OpenUserDefinedDevice(char *path, int maxlen, int flags)
{
const char *audiodev;
int audio_fd;
/* Figure out what our audio device is */
if ((audiodev=SDL_getenv("SDL_PATH_DSP")) == NULL) {
audiodev=SDL_getenv("AUDIODEV");
}
if ( audiodev == NULL ) {
return -1;
}
audio_fd = open(audiodev, flags, 0);
if ( path != NULL ) {
SDL_strlcpy(path, audiodev, maxlen);
path[maxlen-1] = '\0';
}
return audio_fd;
}
int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic)
{
struct stat sb;
int audio_fd;
char audiopath[1024];
int cycle;
audio_fd = OpenUserDefinedDevice(path,maxlen,flags);
if ( audio_fd != -1 ) {
return audio_fd;
}
cycle = 0;
while( devsettings[cycle][0] != '\0' ) {
SDL_snprintf( audiopath, SDL_arraysize(audiopath),
_PATH_DEV_DSP,
devsettings[cycle][0],
devsettings[cycle][1],
devsettings[cycle][2]);
if ( stat(audiopath, &sb) == 0 ) {
audio_fd = open(audiopath, flags, 0);
if ( audio_fd > 0 ) {
if ( path != NULL ) {
SDL_strlcpy( path, audiopath, maxlen );
}
return audio_fd;
}
}
}
return -1;
}
#endif /* Audio driver selection */

26
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Open the audio device, storing the pathname in 'path' */
extern int SDL_OpenAudioPath(char *path, int maxlen, int flags, int classic);

25
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#define SDL_AllocAudioMem SDL_malloc
#define SDL_FreeAudioMem SDL_free

264
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* This provides the default mixing callback for the SDL audio routines */
#include "SDL_cpuinfo.h"
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "SDL_sysaudio.h"
#include "SDL_mixer_MMX.h"
#include "SDL_mixer_MMX_VC.h"
#include "SDL_mixer_m68k.h"
/* This table is used to add two sound values together and pin
* the value to avoid overflow. (used with permission from ARDI)
* Changed to use 0xFE instead of 0xFF for better sound quality.
*/
static const Uint8 mix8[] =
{
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03,
0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E,
0x0F, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19,
0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23, 0x24,
0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A,
0x3B, 0x3C, 0x3D, 0x3E, 0x3F, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45,
0x46, 0x47, 0x48, 0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0x5B,
0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71,
0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0x7B, 0x7C,
0x7D, 0x7E, 0x7F, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92,
0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9A, 0x9B, 0x9C, 0x9D,
0x9E, 0x9F, 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8,
0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3,
0xB4, 0xB5, 0xB6, 0xB7, 0xB8, 0xB9, 0xBA, 0xBB, 0xBC, 0xBD, 0xBE,
0xBF, 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9,
0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4,
0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA, 0xDB, 0xDC, 0xDD, 0xDE, 0xDF,
0xE0, 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0xE7, 0xE8, 0xE9, 0xEA,
0xEB, 0xEC, 0xED, 0xEE, 0xEF, 0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5,
0xF6, 0xF7, 0xF8, 0xF9, 0xFA, 0xFB, 0xFC, 0xFD, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE,
0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE
};
/* The volume ranges from 0 - 128 */
#define ADJUST_VOLUME(s, v) (s = (s*v)/SDL_MIX_MAXVOLUME)
#define ADJUST_VOLUME_U8(s, v) (s = (((s-128)*v)/SDL_MIX_MAXVOLUME)+128)
void SDL_MixAudio (Uint8 *dst, const Uint8 *src, Uint32 len, int volume)
{
Uint16 format;
if ( volume == 0 ) {
return;
}
/* Mix the user-level audio format */
if ( current_audio ) {
if ( current_audio->convert.needed ) {
format = current_audio->convert.src_format;
} else {
format = current_audio->spec.format;
}
} else {
/* HACK HACK HACK */
format = AUDIO_S16;
}
switch (format) {
case AUDIO_U8: {
#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_U8((char*)dst,(char*)src,(unsigned long)len,(long)volume,(char *)mix8);
#else
Uint8 src_sample;
while ( len-- ) {
src_sample = *src;
ADJUST_VOLUME_U8(src_sample, volume);
*dst = mix8[*dst+src_sample];
++dst;
++src;
}
#endif
}
break;
case AUDIO_S8: {
#if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX())
{
SDL_MixAudio_MMX_S8((char*)dst,(char*)src,(unsigned int)len,(int)volume);
}
else
#elif ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX())
{
SDL_MixAudio_MMX_S8_VC((char*)dst,(char*)src,(unsigned int)len,(int)volume);
}
else
#endif
#endif
#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_S8((char*)dst,(char*)src,(unsigned long)len,(long)volume);
#else
{
Sint8 *dst8, *src8;
Sint8 src_sample;
int dst_sample;
const int max_audioval = ((1<<(8-1))-1);
const int min_audioval = -(1<<(8-1));
src8 = (Sint8 *)src;
dst8 = (Sint8 *)dst;
while ( len-- ) {
src_sample = *src8;
ADJUST_VOLUME(src_sample, volume);
dst_sample = *dst8 + src_sample;
if ( dst_sample > max_audioval ) {
*dst8 = max_audioval;
} else
if ( dst_sample < min_audioval ) {
*dst8 = min_audioval;
} else {
*dst8 = dst_sample;
}
++dst8;
++src8;
}
}
#endif
}
break;
case AUDIO_S16LSB: {
#if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX())
{
SDL_MixAudio_MMX_S16((char*)dst,(char*)src,(unsigned int)len,(int)volume);
}
else
#elif ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
if (SDL_HasMMX())
{
SDL_MixAudio_MMX_S16_VC((char*)dst,(char*)src,(unsigned int)len,(int)volume);
}
else
#endif
#endif
#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_S16LSB((short*)dst,(short*)src,(unsigned long)len,(long)volume);
#else
{
Sint16 src1, src2;
int dst_sample;
const int max_audioval = ((1<<(16-1))-1);
const int min_audioval = -(1<<(16-1));
len /= 2;
while ( len-- ) {
src1 = ((src[1])<<8|src[0]);
ADJUST_VOLUME(src1, volume);
src2 = ((dst[1])<<8|dst[0]);
src += 2;
dst_sample = src1+src2;
if ( dst_sample > max_audioval ) {
dst_sample = max_audioval;
} else
if ( dst_sample < min_audioval ) {
dst_sample = min_audioval;
}
dst[0] = dst_sample&0xFF;
dst_sample >>= 8;
dst[1] = dst_sample&0xFF;
dst += 2;
}
}
#endif
}
break;
case AUDIO_S16MSB: {
#if defined(__GNUC__) && defined(__M68000__) && !defined(__mcoldfire__) && defined(SDL_ASSEMBLY_ROUTINES)
SDL_MixAudio_m68k_S16MSB((short*)dst,(short*)src,(unsigned long)len,(long)volume);
#else
Sint16 src1, src2;
int dst_sample;
const int max_audioval = ((1<<(16-1))-1);
const int min_audioval = -(1<<(16-1));
len /= 2;
while ( len-- ) {
src1 = ((src[0])<<8|src[1]);
ADJUST_VOLUME(src1, volume);
src2 = ((dst[0])<<8|dst[1]);
src += 2;
dst_sample = src1+src2;
if ( dst_sample > max_audioval ) {
dst_sample = max_audioval;
} else
if ( dst_sample < min_audioval ) {
dst_sample = min_audioval;
}
dst[1] = dst_sample&0xFF;
dst_sample >>= 8;
dst[0] = dst_sample&0xFF;
dst += 2;
}
#endif
}
break;
default: /* If this happens... FIXME! */
SDL_SetError("SDL_MixAudio(): unknown audio format");
return;
}
}

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
MMX assembler version of SDL_MixAudio for signed little endian 16 bit samples and signed 8 bit samples
Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
This code is licensed under the LGPL (see COPYING for details)
Assumes buffer size in bytes is a multiple of 16
Assumes SDL_MIX_MAXVOLUME = 128
*/
/***********************************************
* Mixing for 16 bit signed buffers
***********************************************/
#if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
void SDL_MixAudio_MMX_S16(char* dst,char* src,unsigned int size,int volume)
{
__asm__ __volatile__ (
" movl %3,%%eax\n" /* eax = volume */
" movl %2,%%edx\n" /* edx = size */
" shrl $4,%%edx\n" /* process 16 bytes per iteration = 8 samples */
" jz .endS16\n"
" pxor %%mm0,%%mm0\n"
" movd %%eax,%%mm0\n"
" movq %%mm0,%%mm1\n"
" psllq $16,%%mm0\n"
" por %%mm1,%%mm0\n"
" psllq $16,%%mm0\n"
" por %%mm1,%%mm0\n"
" psllq $16,%%mm0\n"
" por %%mm1,%%mm0\n" /* mm0 = vol|vol|vol|vol */
".align 8\n"
" .mixloopS16:\n"
" movq (%1),%%mm1\n" /* mm1 = a|b|c|d */
" movq %%mm1,%%mm2\n" /* mm2 = a|b|c|d */
" movq 8(%1),%%mm4\n" /* mm4 = e|f|g|h */
/* pré charger le buffer dst dans mm7 */
" movq (%0),%%mm7\n" /* mm7 = dst[0] */
/* multiplier par le volume */
" pmullw %%mm0,%%mm1\n" /* mm1 = l(a*v)|l(b*v)|l(c*v)|l(d*v) */
" pmulhw %%mm0,%%mm2\n" /* mm2 = h(a*v)|h(b*v)|h(c*v)|h(d*v) */
" movq %%mm4,%%mm5\n" /* mm5 = e|f|g|h */
" pmullw %%mm0,%%mm4\n" /* mm4 = l(e*v)|l(f*v)|l(g*v)|l(h*v) */
" pmulhw %%mm0,%%mm5\n" /* mm5 = h(e*v)|h(f*v)|h(g*v)|h(h*v) */
" movq %%mm1,%%mm3\n" /* mm3 = l(a*v)|l(b*v)|l(c*v)|l(d*v) */
" punpckhwd %%mm2,%%mm1\n" /* mm1 = a*v|b*v */
" movq %%mm4,%%mm6\n" /* mm6 = l(e*v)|l(f*v)|l(g*v)|l(h*v) */
" punpcklwd %%mm2,%%mm3\n" /* mm3 = c*v|d*v */
" punpckhwd %%mm5,%%mm4\n" /* mm4 = e*f|f*v */
" punpcklwd %%mm5,%%mm6\n" /* mm6 = g*v|h*v */
/* pré charger le buffer dst dans mm5 */
" movq 8(%0),%%mm5\n" /* mm5 = dst[1] */
/* diviser par 128 */
" psrad $7,%%mm1\n" /* mm1 = a*v/128|b*v/128 , 128 = SDL_MIX_MAXVOLUME */
" add $16,%1\n"
" psrad $7,%%mm3\n" /* mm3 = c*v/128|d*v/128 */
" psrad $7,%%mm4\n" /* mm4 = e*v/128|f*v/128 */
/* mm1 = le sample avec le volume modifié */
" packssdw %%mm1,%%mm3\n" /* mm3 = s(a*v|b*v|c*v|d*v) */
" psrad $7,%%mm6\n" /* mm6= g*v/128|h*v/128 */
" paddsw %%mm7,%%mm3\n" /* mm3 = adjust_volume(src)+dst */
/* mm4 = le sample avec le volume modifié */
" packssdw %%mm4,%%mm6\n" /* mm6 = s(e*v|f*v|g*v|h*v) */
" movq %%mm3,(%0)\n"
" paddsw %%mm5,%%mm6\n" /* mm6 = adjust_volume(src)+dst */
" movq %%mm6,8(%0)\n"
" add $16,%0\n"
" dec %%edx\n"
" jnz .mixloopS16\n"
" emms\n"
".endS16:\n"
:
: "r" (dst), "r"(src),"m"(size),
"m"(volume)
: "eax","edx","memory"
);
}
/*////////////////////////////////////////////// */
/* Mixing for 8 bit signed buffers */
/*////////////////////////////////////////////// */
void SDL_MixAudio_MMX_S8(char* dst,char* src,unsigned int size,int volume)
{
__asm__ __volatile__ (
" movl %3,%%eax\n" /* eax = volume */
" movd %%eax,%%mm0\n"
" movq %%mm0,%%mm1\n"
" psllq $16,%%mm0\n"
" por %%mm1,%%mm0\n"
" psllq $16,%%mm0\n"
" por %%mm1,%%mm0\n"
" psllq $16,%%mm0\n"
" por %%mm1,%%mm0\n"
" movl %2,%%edx\n" /* edx = size */
" shr $3,%%edx\n" /* process 8 bytes per iteration = 8 samples */
" cmp $0,%%edx\n"
" je .endS8\n"
".align 8\n"
" .mixloopS8:\n"
" pxor %%mm2,%%mm2\n" /* mm2 = 0 */
" movq (%1),%%mm1\n" /* mm1 = a|b|c|d|e|f|g|h */
" movq %%mm1,%%mm3\n" /* mm3 = a|b|c|d|e|f|g|h */
/* on va faire le "sign extension" en faisant un cmp avec 0 qui retourne 1 si <0, 0 si >0 */
" pcmpgtb %%mm1,%%mm2\n" /* mm2 = 11111111|00000000|00000000.... */
" punpckhbw %%mm2,%%mm1\n" /* mm1 = 0|a|0|b|0|c|0|d */
" punpcklbw %%mm2,%%mm3\n" /* mm3 = 0|e|0|f|0|g|0|h */
" movq (%0),%%mm2\n" /* mm2 = destination */
" pmullw %%mm0,%%mm1\n" /* mm1 = v*a|v*b|v*c|v*d */
" add $8,%1\n"
" pmullw %%mm0,%%mm3\n" /* mm3 = v*e|v*f|v*g|v*h */
" psraw $7,%%mm1\n" /* mm1 = v*a/128|v*b/128|v*c/128|v*d/128 */
" psraw $7,%%mm3\n" /* mm3 = v*e/128|v*f/128|v*g/128|v*h/128 */
" packsswb %%mm1,%%mm3\n" /* mm1 = v*a/128|v*b/128|v*c/128|v*d/128|v*e/128|v*f/128|v*g/128|v*h/128 */
" paddsb %%mm2,%%mm3\n" /* add to destination buffer */
" movq %%mm3,(%0)\n" /* store back to ram */
" add $8,%0\n"
" dec %%edx\n"
" jnz .mixloopS8\n"
".endS8:\n"
" emms\n"
:
: "r" (dst), "r"(src),"m"(size),
"m"(volume)
: "eax","edx","memory"
);
}
#endif
#endif

17
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/*
headers for MMX assembler version of SDL_MixAudio
Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
This code is licensed under the LGPL (see COPYING for details)
Assumes buffer size in bytes is a multiple of 16
Assumes SDL_MIX_MAXVOLUME = 128
*/
#include "SDL_config.h"
#if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
#if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES)
void SDL_MixAudio_MMX_S16(char* ,char* ,unsigned int ,int );
void SDL_MixAudio_MMX_S8(char* ,char* ,unsigned int ,int );
#endif
#endif

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include "SDL_mixer_MMX_VC.h"
#if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
#if ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
// MMX assembler version of SDL_MixAudio for signed little endian 16 bit samples and signed 8 bit samples
// Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
// Converted to Intel ASM notation by Cth
// This code is licensed under the LGPL (see COPYING for details)
//
// Assumes buffer size in bytes is a multiple of 16
// Assumes SDL_MIX_MAXVOLUME = 128
////////////////////////////////////////////////
// Mixing for 16 bit signed buffers
////////////////////////////////////////////////
void SDL_MixAudio_MMX_S16_VC(char* dst,char* src,unsigned int nSize,int volume)
{
__asm
{
push edi
push esi
push ebx
mov edi, dst // edi = dst
mov esi, src // esi = src
mov eax, volume // eax = volume
mov ebx, nSize // ebx = size
shr ebx, 4 // process 16 bytes per iteration = 8 samples
jz endS16
pxor mm0, mm0
movd mm0, eax //%%eax,%%mm0
movq mm1, mm0 //%%mm0,%%mm1
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0 // mm0 = vol|vol|vol|vol
#ifndef __WATCOMC__
align 16
#endif
mixloopS16:
movq mm1, [esi] //(%%esi),%%mm1\n" // mm1 = a|b|c|d
movq mm2, mm1 //%%mm1,%%mm2\n" // mm2 = a|b|c|d
movq mm4, [esi + 8] //8(%%esi),%%mm4\n" // mm4 = e|f|g|h
// pre charger le buffer dst dans mm7
movq mm7, [edi] //(%%edi),%%mm7\n" // mm7 = dst[0]"
// multiplier par le volume
pmullw mm1, mm0 //%%mm0,%%mm1\n" // mm1 = l(a*v)|l(b*v)|l(c*v)|l(d*v)
pmulhw mm2, mm0 //%%mm0,%%mm2\n" // mm2 = h(a*v)|h(b*v)|h(c*v)|h(d*v)
movq mm5, mm4 //%%mm4,%%mm5\n" // mm5 = e|f|g|h
pmullw mm4, mm0 //%%mm0,%%mm4\n" // mm4 = l(e*v)|l(f*v)|l(g*v)|l(h*v)
pmulhw mm5, mm0 //%%mm0,%%mm5\n" // mm5 = h(e*v)|h(f*v)|h(g*v)|h(h*v)
movq mm3, mm1 //%%mm1,%%mm3\n" // mm3 = l(a*v)|l(b*v)|l(c*v)|l(d*v)
punpckhwd mm1, mm2 //%%mm2,%%mm1\n" // mm1 = a*v|b*v
movq mm6, mm4 //%%mm4,%%mm6\n" // mm6 = l(e*v)|l(f*v)|l(g*v)|l(h*v)
punpcklwd mm3, mm2 //%%mm2,%%mm3\n" // mm3 = c*v|d*v
punpckhwd mm4, mm5 //%%mm5,%%mm4\n" // mm4 = e*f|f*v
punpcklwd mm6, mm5 //%%mm5,%%mm6\n" // mm6 = g*v|h*v
// pre charger le buffer dst dans mm5
movq mm5, [edi + 8] //8(%%edi),%%mm5\n" // mm5 = dst[1]
// diviser par 128
psrad mm1, 7 //$7,%%mm1\n" // mm1 = a*v/128|b*v/128 , 128 = SDL_MIX_MAXVOLUME
add esi, 16 //$16,%%esi\n"
psrad mm3, 7 //$7,%%mm3\n" // mm3 = c*v/128|d*v/128
psrad mm4, 7 //$7,%%mm4\n" // mm4 = e*v/128|f*v/128
// mm1 = le sample avec le volume modifie
packssdw mm3, mm1 //%%mm1,%%mm3\n" // mm3 = s(a*v|b*v|c*v|d*v)
psrad mm6, 7 //$7,%%mm6\n" // mm6= g*v/128|h*v/128
paddsw mm3, mm7 //%%mm7,%%mm3\n" // mm3 = adjust_volume(src)+dst
// mm4 = le sample avec le volume modifie
packssdw mm6, mm4 //%%mm4,%%mm6\n" // mm6 = s(e*v|f*v|g*v|h*v)
movq [edi], mm3 //%%mm3,(%%edi)\n"
paddsw mm6, mm5 //%%mm5,%%mm6\n" // mm6 = adjust_volume(src)+dst
movq [edi + 8], mm6 //%%mm6,8(%%edi)\n"
add edi, 16 //$16,%%edi\n"
dec ebx //%%ebx\n"
jnz mixloopS16
endS16:
emms
pop ebx
pop esi
pop edi
}
}
////////////////////////////////////////////////
// Mixing for 8 bit signed buffers
////////////////////////////////////////////////
void SDL_MixAudio_MMX_S8_VC(char* dst,char* src,unsigned int nSize,int volume)
{
_asm
{
push edi
push esi
push ebx
mov edi, dst //movl %0,%%edi // edi = dst
mov esi, src //%1,%%esi // esi = src
mov eax, volume //%3,%%eax // eax = volume
movd mm0, eax //%%eax,%%mm0
movq mm1, mm0 //%%mm0,%%mm1
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
psllq mm0, 16 //$16,%%mm0
por mm0, mm1 //%%mm1,%%mm0
mov ebx, nSize //%2,%%ebx // ebx = size
shr ebx, 3 //$3,%%ebx // process 8 bytes per iteration = 8 samples
cmp ebx, 0 //$0,%%ebx
je endS8
#ifndef __WATCOMC__
align 16
#endif
mixloopS8:
pxor mm2, mm2 //%%mm2,%%mm2 // mm2 = 0
movq mm1, [esi] //(%%esi),%%mm1 // mm1 = a|b|c|d|e|f|g|h
movq mm3, mm1 //%%mm1,%%mm3 // mm3 = a|b|c|d|e|f|g|h
// on va faire le "sign extension" en faisant un cmp avec 0 qui retourne 1 si <0, 0 si >0
pcmpgtb mm2, mm1 //%%mm1,%%mm2 // mm2 = 11111111|00000000|00000000....
punpckhbw mm1, mm2 //%%mm2,%%mm1 // mm1 = 0|a|0|b|0|c|0|d
punpcklbw mm3, mm2 //%%mm2,%%mm3 // mm3 = 0|e|0|f|0|g|0|h
movq mm2, [edi] //(%%edi),%%mm2 // mm2 = destination
pmullw mm1, mm0 //%%mm0,%%mm1 // mm1 = v*a|v*b|v*c|v*d
add esi, 8 //$8,%%esi
pmullw mm3, mm0 //%%mm0,%%mm3 // mm3 = v*e|v*f|v*g|v*h
psraw mm1, 7 //$7,%%mm1 // mm1 = v*a/128|v*b/128|v*c/128|v*d/128
psraw mm3, 7 //$7,%%mm3 // mm3 = v*e/128|v*f/128|v*g/128|v*h/128
packsswb mm3, mm1 //%%mm1,%%mm3 // mm1 = v*a/128|v*b/128|v*c/128|v*d/128|v*e/128|v*f/128|v*g/128|v*h/128
paddsb mm3, mm2 //%%mm2,%%mm3 // add to destination buffer
movq [edi], mm3 //%%mm3,(%%edi) // store back to ram
add edi, 8 //$8,%%edi
dec ebx //%%ebx
jnz mixloopS8
endS8:
emms
pop ebx
pop esi
pop edi
}
}
#endif /* SDL_ASSEMBLY_ROUTINES */
#endif /* SDL_BUGGY_MMX_MIXERS */

38
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
#if ((defined(_MSC_VER) && defined(_M_IX86)) || defined(__WATCOMC__)) && defined(SDL_ASSEMBLY_ROUTINES)
/* headers for MMX assembler version of SDL_MixAudio
Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr)
Converted to Intel ASM notation by Cth
This code is licensed under the LGPL (see COPYING for details)
Assumes buffer size in bytes is a multiple of 16
Assumes SDL_MIX_MAXVOLUME = 128
*/
void SDL_MixAudio_MMX_S16_VC(char* ,char* ,unsigned int ,int );
void SDL_MixAudio_MMX_S8_VC(char* ,char* ,unsigned int ,int );
#endif
#endif

210
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
m68k assembly mix routines
Patrice Mandin
*/
#if defined(__M68000__) && !defined(__mcoldfire__) && defined(__GNUC__)
void SDL_MixAudio_m68k_U8(char* dst, char* src, long len, long volume, char* mix8)
{
__asm__ __volatile__ (
"tstl %2\n"
" beqs stoploop_u8\n"
"mixloop_u8:\n"
/* Mix a sample */
" moveq #0,%%d0\n"
" moveq #0,%%d1\n"
" moveb %1@+,%%d0\n" /* d0 = *src++ */
" sub #128,%%d0\n" /* d0 -= 128 */
" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" moveb %0@,%%d1\n" /* d1 = *dst */
" asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" add #128,%%d0\n" /* d0 += 128 */
" add %%d1,%%d0\n"
" moveb %4@(%%d0:w),%0@+\n"
/* Loop till done */
" subql #1,%2\n"
" bhis mixloop_u8\n"
"stoploop_u8:\n"
: /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume), "a"(mix8)
: /* clobbered registers */
"d0", "d1", "cc", "memory"
);
}
void SDL_MixAudio_m68k_S8(char* dst, char* src, long len, long volume)
{
__asm__ __volatile__ (
"tstl %2\n"
" beqs stoploop_s8\n"
" moveq #-128,%%d2\n"
" moveq #127,%%d3\n"
"mixloop_s8:\n"
/* Mix a sample */
" moveq #0,%%d0\n"
" moveq #0,%%d1\n"
" moveb %1@+,%%d0\n" /* d0 = *src++ */
" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" moveb %0@,%%d1\n" /* d1 = *dst */
" asr #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" add %%d1,%%d0\n"
" cmp %%d2,%%d0\n"
" bges lower_limit_s8\n"
" move %%d2,%%d0\n"
"lower_limit_s8:\n"
" cmp %%d3,%%d0\n"
" bles upper_limit_s8\n"
" move %%d3,%%d0\n"
"upper_limit_s8:\n"
" moveb %%d0,%0@+\n"
/* Loop till done */
" subql #1,%2\n"
" bhis mixloop_s8\n"
"stoploop_s8:\n"
: /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume)
: /* clobbered registers */
"d0", "d1", "d2", "d3", "cc", "memory"
);
}
void SDL_MixAudio_m68k_S16MSB(short* dst, short* src, long len, long volume)
{
__asm__ __volatile__ (
"tstl %2\n"
" beqs stoploop_s16msb\n"
" movel #-32768,%%d2\n"
" movel #32767,%%d3\n"
" lsrl #1,%2\n"
"mixloop_s16msb:\n"
/* Mix a sample */
" move %1@+,%%d0\n" /* d0 = *src++ */
" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" move %0@,%%d1\n" /* d1 = *dst */
" extl %%d1\n" /* extend d1 to 32 bits */
" asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" addl %%d1,%%d0\n"
" cmpl %%d2,%%d0\n"
" bges lower_limit_s16msb\n"
" move %%d2,%%d0\n"
"lower_limit_s16msb:\n"
" cmpl %%d3,%%d0\n"
" bles upper_limit_s16msb\n"
" move %%d3,%%d0\n"
"upper_limit_s16msb:\n"
" move %%d0,%0@+\n"
/* Loop till done */
" subql #1,%2\n"
" bhis mixloop_s16msb\n"
"stoploop_s16msb:\n"
: /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume)
: /* clobbered registers */
"d0", "d1", "d2", "d3", "cc", "memory"
);
}
void SDL_MixAudio_m68k_S16LSB(short* dst, short* src, long len, long volume)
{
__asm__ __volatile__ (
"tstl %2\n"
" beqs stoploop_s16lsb\n"
" movel #-32768,%%d2\n"
" movel #32767,%%d3\n"
" lsrl #1,%2\n"
"mixloop_s16lsb:\n"
/* Mix a sample */
" move %1@+,%%d0\n" /* d0 = *src++ */
" rorw #8,%%d0\n"
" muls %3,%%d0\n" /* d0 *= volume (0<=volume<=128) */
" move %0@,%%d1\n" /* d1 = *dst */
" rorw #8,%%d1\n"
" extl %%d1\n" /* extend d1 to 32 bits */
" asrl #7,%%d0\n" /* d0 /= 128 (SDL_MIX_MAXVOLUME) */
" addl %%d1,%%d0\n"
" cmpl %%d2,%%d0\n"
" bges lower_limit_s16lsb\n"
" move %%d2,%%d0\n"
"lower_limit_s16lsb:\n"
" cmpl %%d3,%%d0\n"
" bles upper_limit_s16lsb\n"
" move %%d3,%%d0\n"
"upper_limit_s16lsb:\n"
" rorw #8,%%d0\n"
" move %%d0,%0@+\n"
/* Loop till done */
" subql #1,%2\n"
" bhis mixloop_s16lsb\n"
"stoploop_s16lsb:\n"
: /* no return value */
: /* input */
"a"(dst), "a"(src), "d"(len), "d"(volume)
: /* clobbered registers */
"d0", "d1", "d2", "d3", "cc", "memory"
);
}
#endif

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
m68k assembly mix routines
Patrice Mandin
*/
#if defined(__M68000__) && defined(__GNUC__)
void SDL_MixAudio_m68k_U8(char* dst,char* src, long len, long volume, char* mix8);
void SDL_MixAudio_m68k_S8(char* dst,char* src, long len, long volume);
void SDL_MixAudio_m68k_S16MSB(short* dst,short* src, long len, long volume);
void SDL_MixAudio_m68k_S16LSB(short* dst,short* src, long len, long volume);
#endif

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is SDL_free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_sysaudio_h
#define _SDL_sysaudio_h
#include "SDL_mutex.h"
#include "SDL_thread.h"
/* The SDL audio driver */
typedef struct SDL_AudioDevice SDL_AudioDevice;
/* Define the SDL audio driver structure */
#define _THIS SDL_AudioDevice *_this
#ifndef _STATUS
#define _STATUS SDL_status *status
#endif
struct SDL_AudioDevice {
/* * * */
/* The name of this audio driver */
const char *name;
/* * * */
/* The description of this audio driver */
const char *desc;
/* * * */
/* Public driver functions */
int (*OpenAudio)(_THIS, SDL_AudioSpec *spec);
void (*ThreadInit)(_THIS); /* Called by audio thread at start */
void (*WaitAudio)(_THIS);
void (*PlayAudio)(_THIS);
Uint8 *(*GetAudioBuf)(_THIS);
void (*WaitDone)(_THIS);
void (*CloseAudio)(_THIS);
/* * * */
/* Lock / Unlock functions added for the Mac port */
void (*LockAudio)(_THIS);
void (*UnlockAudio)(_THIS);
void (*SetCaption)(_THIS, const char *caption);
/* * * */
/* Data common to all devices */
/* The current audio specification (shared with audio thread) */
SDL_AudioSpec spec;
/* An audio conversion block for audio format emulation */
SDL_AudioCVT convert;
/* Current state flags */
int enabled;
int paused;
int opened;
/* Fake audio buffer for when the audio hardware is busy */
Uint8 *fake_stream;
/* A semaphore for locking the mixing buffers */
SDL_mutex *mixer_lock;
/* A thread to feed the audio device */
SDL_Thread *thread;
Uint32 threadid;
/* * * */
/* Data private to this driver */
struct SDL_PrivateAudioData *hidden;
/* * * */
/* The function used to dispose of this structure */
void (*free)(_THIS);
};
#undef _THIS
typedef struct AudioBootStrap {
const char *name;
const char *desc;
int (*available)(void);
SDL_AudioDevice *(*create)(int devindex);
} AudioBootStrap;
#if SDL_AUDIO_DRIVER_BSD
extern AudioBootStrap BSD_AUDIO_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_PULSE
extern AudioBootStrap PULSE_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_ALSA
extern AudioBootStrap ALSA_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_OSS
extern AudioBootStrap DSP_bootstrap;
extern AudioBootStrap DMA_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_QNXNTO
extern AudioBootStrap QNXNTOAUDIO_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_SUNAUDIO
extern AudioBootStrap SUNAUDIO_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_DMEDIA
extern AudioBootStrap DMEDIA_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_ARTS
extern AudioBootStrap ARTS_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_ESD
extern AudioBootStrap ESD_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_NAS
extern AudioBootStrap NAS_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_DSOUND
extern AudioBootStrap DSOUND_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_WAVEOUT
extern AudioBootStrap WAVEOUT_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_PAUD
extern AudioBootStrap Paud_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_BAUDIO
extern AudioBootStrap BAUDIO_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_COREAUDIO
extern AudioBootStrap COREAUDIO_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_SNDMGR
extern AudioBootStrap SNDMGR_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_MINT
extern AudioBootStrap MINTAUDIO_GSXB_bootstrap;
extern AudioBootStrap MINTAUDIO_MCSN_bootstrap;
extern AudioBootStrap MINTAUDIO_STFA_bootstrap;
extern AudioBootStrap MINTAUDIO_XBIOS_bootstrap;
extern AudioBootStrap MINTAUDIO_DMA8_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_DISK
extern AudioBootStrap DISKAUD_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_DUMMY
extern AudioBootStrap DUMMYAUD_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_DC
extern AudioBootStrap DCAUD_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_NDS
extern AudioBootStrap NDSAUD_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_MMEAUDIO
extern AudioBootStrap MMEAUDIO_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_DART
extern AudioBootStrap DART_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_EPOCAUDIO
extern AudioBootStrap EPOCAudio_bootstrap;
#endif
#if SDL_AUDIO_DRIVER_ANDROID
extern AudioBootStrap ANDROIDAUD_bootstrap;
#endif
/* This is the current audio device */
extern SDL_AudioDevice *current_audio;
#endif /* _SDL_sysaudio_h */

600
alienblaster/project/sdl/sdl-1.2/src/audio/SDL_wave.c Normal file
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@@ -0,0 +1,600 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Microsoft WAVE file loading routines */
#include "SDL_audio.h"
#include "SDL_wave.h"
static int ReadChunk(SDL_RWops *src, Chunk *chunk);
struct MS_ADPCM_decodestate {
Uint8 hPredictor;
Uint16 iDelta;
Sint16 iSamp1;
Sint16 iSamp2;
};
static struct MS_ADPCM_decoder {
WaveFMT wavefmt;
Uint16 wSamplesPerBlock;
Uint16 wNumCoef;
Sint16 aCoeff[7][2];
/* * * */
struct MS_ADPCM_decodestate state[2];
} MS_ADPCM_state;
static int InitMS_ADPCM(WaveFMT *format)
{
Uint8 *rogue_feel;
Uint16 extra_info;
int i;
/* Set the rogue pointer to the MS_ADPCM specific data */
MS_ADPCM_state.wavefmt.encoding = SDL_SwapLE16(format->encoding);
MS_ADPCM_state.wavefmt.channels = SDL_SwapLE16(format->channels);
MS_ADPCM_state.wavefmt.frequency = SDL_SwapLE32(format->frequency);
MS_ADPCM_state.wavefmt.byterate = SDL_SwapLE32(format->byterate);
MS_ADPCM_state.wavefmt.blockalign = SDL_SwapLE16(format->blockalign);
MS_ADPCM_state.wavefmt.bitspersample =
SDL_SwapLE16(format->bitspersample);
rogue_feel = (Uint8 *)format+sizeof(*format);
if ( sizeof(*format) == 16 ) {
extra_info = ((rogue_feel[1]<<8)|rogue_feel[0]);
rogue_feel += sizeof(Uint16);
}
MS_ADPCM_state.wSamplesPerBlock = ((rogue_feel[1]<<8)|rogue_feel[0]);
rogue_feel += sizeof(Uint16);
MS_ADPCM_state.wNumCoef = ((rogue_feel[1]<<8)|rogue_feel[0]);
rogue_feel += sizeof(Uint16);
if ( MS_ADPCM_state.wNumCoef != 7 ) {
SDL_SetError("Unknown set of MS_ADPCM coefficients");
return(-1);
}
for ( i=0; i<MS_ADPCM_state.wNumCoef; ++i ) {
MS_ADPCM_state.aCoeff[i][0] = ((rogue_feel[1]<<8)|rogue_feel[0]);
rogue_feel += sizeof(Uint16);
MS_ADPCM_state.aCoeff[i][1] = ((rogue_feel[1]<<8)|rogue_feel[0]);
rogue_feel += sizeof(Uint16);
}
return(0);
}
static Sint32 MS_ADPCM_nibble(struct MS_ADPCM_decodestate *state,
Uint8 nybble, Sint16 *coeff)
{
const Sint32 max_audioval = ((1<<(16-1))-1);
const Sint32 min_audioval = -(1<<(16-1));
const Sint32 adaptive[] = {
230, 230, 230, 230, 307, 409, 512, 614,
768, 614, 512, 409, 307, 230, 230, 230
};
Sint32 new_sample, delta;
new_sample = ((state->iSamp1 * coeff[0]) +
(state->iSamp2 * coeff[1]))/256;
if ( nybble & 0x08 ) {
new_sample += state->iDelta * (nybble-0x10);
} else {
new_sample += state->iDelta * nybble;
}
if ( new_sample < min_audioval ) {
new_sample = min_audioval;
} else
if ( new_sample > max_audioval ) {
new_sample = max_audioval;
}
delta = ((Sint32)state->iDelta * adaptive[nybble])/256;
if ( delta < 16 ) {
delta = 16;
}
state->iDelta = (Uint16)delta;
state->iSamp2 = state->iSamp1;
state->iSamp1 = (Sint16)new_sample;
return(new_sample);
}
static int MS_ADPCM_decode(Uint8 **audio_buf, Uint32 *audio_len)
{
struct MS_ADPCM_decodestate *state[2];
Uint8 *freeable, *encoded, *decoded;
Sint32 encoded_len, samplesleft;
Sint8 nybble, stereo;
Sint16 *coeff[2];
Sint32 new_sample;
/* Allocate the proper sized output buffer */
encoded_len = *audio_len;
encoded = *audio_buf;
freeable = *audio_buf;
*audio_len = (encoded_len/MS_ADPCM_state.wavefmt.blockalign) *
MS_ADPCM_state.wSamplesPerBlock*
MS_ADPCM_state.wavefmt.channels*sizeof(Sint16);
*audio_buf = (Uint8 *)SDL_malloc(*audio_len);
if ( *audio_buf == NULL ) {
SDL_Error(SDL_ENOMEM);
return(-1);
}
decoded = *audio_buf;
/* Get ready... Go! */
stereo = (MS_ADPCM_state.wavefmt.channels == 2);
state[0] = &MS_ADPCM_state.state[0];
state[1] = &MS_ADPCM_state.state[stereo];
while ( encoded_len >= MS_ADPCM_state.wavefmt.blockalign ) {
/* Grab the initial information for this block */
state[0]->hPredictor = *encoded++;
if ( stereo ) {
state[1]->hPredictor = *encoded++;
}
state[0]->iDelta = ((encoded[1]<<8)|encoded[0]);
encoded += sizeof(Sint16);
if ( stereo ) {
state[1]->iDelta = ((encoded[1]<<8)|encoded[0]);
encoded += sizeof(Sint16);
}
state[0]->iSamp1 = ((encoded[1]<<8)|encoded[0]);
encoded += sizeof(Sint16);
if ( stereo ) {
state[1]->iSamp1 = ((encoded[1]<<8)|encoded[0]);
encoded += sizeof(Sint16);
}
state[0]->iSamp2 = ((encoded[1]<<8)|encoded[0]);
encoded += sizeof(Sint16);
if ( stereo ) {
state[1]->iSamp2 = ((encoded[1]<<8)|encoded[0]);
encoded += sizeof(Sint16);
}
coeff[0] = MS_ADPCM_state.aCoeff[state[0]->hPredictor];
coeff[1] = MS_ADPCM_state.aCoeff[state[1]->hPredictor];
/* Store the two initial samples we start with */
decoded[0] = state[0]->iSamp2&0xFF;
decoded[1] = state[0]->iSamp2>>8;
decoded += 2;
if ( stereo ) {
decoded[0] = state[1]->iSamp2&0xFF;
decoded[1] = state[1]->iSamp2>>8;
decoded += 2;
}
decoded[0] = state[0]->iSamp1&0xFF;
decoded[1] = state[0]->iSamp1>>8;
decoded += 2;
if ( stereo ) {
decoded[0] = state[1]->iSamp1&0xFF;
decoded[1] = state[1]->iSamp1>>8;
decoded += 2;
}
/* Decode and store the other samples in this block */
samplesleft = (MS_ADPCM_state.wSamplesPerBlock-2)*
MS_ADPCM_state.wavefmt.channels;
while ( samplesleft > 0 ) {
nybble = (*encoded)>>4;
new_sample = MS_ADPCM_nibble(state[0],nybble,coeff[0]);
decoded[0] = new_sample&0xFF;
new_sample >>= 8;
decoded[1] = new_sample&0xFF;
decoded += 2;
nybble = (*encoded)&0x0F;
new_sample = MS_ADPCM_nibble(state[1],nybble,coeff[1]);
decoded[0] = new_sample&0xFF;
new_sample >>= 8;
decoded[1] = new_sample&0xFF;
decoded += 2;
++encoded;
samplesleft -= 2;
}
encoded_len -= MS_ADPCM_state.wavefmt.blockalign;
}
SDL_free(freeable);
return(0);
}
struct IMA_ADPCM_decodestate {
Sint32 sample;
Sint8 index;
};
static struct IMA_ADPCM_decoder {
WaveFMT wavefmt;
Uint16 wSamplesPerBlock;
/* * * */
struct IMA_ADPCM_decodestate state[2];
} IMA_ADPCM_state;
static int InitIMA_ADPCM(WaveFMT *format)
{
Uint8 *rogue_feel;
Uint16 extra_info;
/* Set the rogue pointer to the IMA_ADPCM specific data */
IMA_ADPCM_state.wavefmt.encoding = SDL_SwapLE16(format->encoding);
IMA_ADPCM_state.wavefmt.channels = SDL_SwapLE16(format->channels);
IMA_ADPCM_state.wavefmt.frequency = SDL_SwapLE32(format->frequency);
IMA_ADPCM_state.wavefmt.byterate = SDL_SwapLE32(format->byterate);
IMA_ADPCM_state.wavefmt.blockalign = SDL_SwapLE16(format->blockalign);
IMA_ADPCM_state.wavefmt.bitspersample =
SDL_SwapLE16(format->bitspersample);
rogue_feel = (Uint8 *)format+sizeof(*format);
if ( sizeof(*format) == 16 ) {
extra_info = ((rogue_feel[1]<<8)|rogue_feel[0]);
rogue_feel += sizeof(Uint16);
}
IMA_ADPCM_state.wSamplesPerBlock = ((rogue_feel[1]<<8)|rogue_feel[0]);
return(0);
}
static Sint32 IMA_ADPCM_nibble(struct IMA_ADPCM_decodestate *state,Uint8 nybble)
{
const Sint32 max_audioval = ((1<<(16-1))-1);
const Sint32 min_audioval = -(1<<(16-1));
const int index_table[16] = {
-1, -1, -1, -1,
2, 4, 6, 8,
-1, -1, -1, -1,
2, 4, 6, 8
};
const Sint32 step_table[89] = {
7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 19, 21, 23, 25, 28, 31,
34, 37, 41, 45, 50, 55, 60, 66, 73, 80, 88, 97, 107, 118, 130,
143, 157, 173, 190, 209, 230, 253, 279, 307, 337, 371, 408,
449, 494, 544, 598, 658, 724, 796, 876, 963, 1060, 1166, 1282,
1411, 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024, 3327,
3660, 4026, 4428, 4871, 5358, 5894, 6484, 7132, 7845, 8630,
9493, 10442, 11487, 12635, 13899, 15289, 16818, 18500, 20350,
22385, 24623, 27086, 29794, 32767
};
Sint32 delta, step;
/* Compute difference and new sample value */
step = step_table[state->index];
delta = step >> 3;
if ( nybble & 0x04 ) delta += step;
if ( nybble & 0x02 ) delta += (step >> 1);
if ( nybble & 0x01 ) delta += (step >> 2);
if ( nybble & 0x08 ) delta = -delta;
state->sample += delta;
/* Update index value */
state->index += index_table[nybble];
if ( state->index > 88 ) {
state->index = 88;
} else
if ( state->index < 0 ) {
state->index = 0;
}
/* Clamp output sample */
if ( state->sample > max_audioval ) {
state->sample = max_audioval;
} else
if ( state->sample < min_audioval ) {
state->sample = min_audioval;
}
return(state->sample);
}
/* Fill the decode buffer with a channel block of data (8 samples) */
static void Fill_IMA_ADPCM_block(Uint8 *decoded, Uint8 *encoded,
int channel, int numchannels, struct IMA_ADPCM_decodestate *state)
{
int i;
Sint8 nybble;
Sint32 new_sample;
decoded += (channel * 2);
for ( i=0; i<4; ++i ) {
nybble = (*encoded)&0x0F;
new_sample = IMA_ADPCM_nibble(state, nybble);
decoded[0] = new_sample&0xFF;
new_sample >>= 8;
decoded[1] = new_sample&0xFF;
decoded += 2 * numchannels;
nybble = (*encoded)>>4;
new_sample = IMA_ADPCM_nibble(state, nybble);
decoded[0] = new_sample&0xFF;
new_sample >>= 8;
decoded[1] = new_sample&0xFF;
decoded += 2 * numchannels;
++encoded;
}
}
static int IMA_ADPCM_decode(Uint8 **audio_buf, Uint32 *audio_len)
{
struct IMA_ADPCM_decodestate *state;
Uint8 *freeable, *encoded, *decoded;
Sint32 encoded_len, samplesleft;
unsigned int c, channels;
/* Check to make sure we have enough variables in the state array */
channels = IMA_ADPCM_state.wavefmt.channels;
if ( channels > SDL_arraysize(IMA_ADPCM_state.state) ) {
SDL_SetError("IMA ADPCM decoder can only handle %d channels",
SDL_arraysize(IMA_ADPCM_state.state));
return(-1);
}
state = IMA_ADPCM_state.state;
/* Allocate the proper sized output buffer */
encoded_len = *audio_len;
encoded = *audio_buf;
freeable = *audio_buf;
*audio_len = (encoded_len/IMA_ADPCM_state.wavefmt.blockalign) *
IMA_ADPCM_state.wSamplesPerBlock*
IMA_ADPCM_state.wavefmt.channels*sizeof(Sint16);
*audio_buf = (Uint8 *)SDL_malloc(*audio_len);
if ( *audio_buf == NULL ) {
SDL_Error(SDL_ENOMEM);
return(-1);
}
decoded = *audio_buf;
/* Get ready... Go! */
while ( encoded_len >= IMA_ADPCM_state.wavefmt.blockalign ) {
/* Grab the initial information for this block */
for ( c=0; c<channels; ++c ) {
/* Fill the state information for this block */
state[c].sample = ((encoded[1]<<8)|encoded[0]);
encoded += 2;
if ( state[c].sample & 0x8000 ) {
state[c].sample -= 0x10000;
}
state[c].index = *encoded++;
/* Reserved byte in buffer header, should be 0 */
if ( *encoded++ != 0 ) {
/* Uh oh, corrupt data? Buggy code? */;
}
/* Store the initial sample we start with */
decoded[0] = (Uint8)(state[c].sample&0xFF);
decoded[1] = (Uint8)(state[c].sample>>8);
decoded += 2;
}
/* Decode and store the other samples in this block */
samplesleft = (IMA_ADPCM_state.wSamplesPerBlock-1)*channels;
while ( samplesleft > 0 ) {
for ( c=0; c<channels; ++c ) {
Fill_IMA_ADPCM_block(decoded, encoded,
c, channels, &state[c]);
encoded += 4;
samplesleft -= 8;
}
decoded += (channels * 8 * 2);
}
encoded_len -= IMA_ADPCM_state.wavefmt.blockalign;
}
SDL_free(freeable);
return(0);
}
SDL_AudioSpec * SDL_LoadWAV_RW (SDL_RWops *src, int freesrc,
SDL_AudioSpec *spec, Uint8 **audio_buf, Uint32 *audio_len)
{
int was_error;
Chunk chunk;
int lenread;
int MS_ADPCM_encoded, IMA_ADPCM_encoded;
int samplesize;
/* WAV magic header */
Uint32 RIFFchunk;
Uint32 wavelen = 0;
Uint32 WAVEmagic;
Uint32 headerDiff = 0;
/* FMT chunk */
WaveFMT *format = NULL;
/* Make sure we are passed a valid data source */
was_error = 0;
if ( src == NULL ) {
was_error = 1;
goto done;
}
/* Check the magic header */
RIFFchunk = SDL_ReadLE32(src);
wavelen = SDL_ReadLE32(src);
if ( wavelen == WAVE ) { /* The RIFFchunk has already been read */
WAVEmagic = wavelen;
wavelen = RIFFchunk;
RIFFchunk = RIFF;
} else {
WAVEmagic = SDL_ReadLE32(src);
}
if ( (RIFFchunk != RIFF) || (WAVEmagic != WAVE) ) {
SDL_SetError("Unrecognized file type (not WAVE)");
was_error = 1;
goto done;
}
headerDiff += sizeof(Uint32); /* for WAVE */
/* Read the audio data format chunk */
chunk.data = NULL;
do {
if ( chunk.data != NULL ) {
SDL_free(chunk.data);
chunk.data = NULL;
}
lenread = ReadChunk(src, &chunk);
if ( lenread < 0 ) {
was_error = 1;
goto done;
}
/* 2 Uint32's for chunk header+len, plus the lenread */
headerDiff += lenread + 2 * sizeof(Uint32);
} while ( (chunk.magic == FACT) || (chunk.magic == LIST) );
/* Decode the audio data format */
format = (WaveFMT *)chunk.data;
if ( chunk.magic != FMT ) {
SDL_SetError("Complex WAVE files not supported");
was_error = 1;
goto done;
}
MS_ADPCM_encoded = IMA_ADPCM_encoded = 0;
switch (SDL_SwapLE16(format->encoding)) {
case PCM_CODE:
/* We can understand this */
break;
case MS_ADPCM_CODE:
/* Try to understand this */
if ( InitMS_ADPCM(format) < 0 ) {
was_error = 1;
goto done;
}
MS_ADPCM_encoded = 1;
break;
case IMA_ADPCM_CODE:
/* Try to understand this */
if ( InitIMA_ADPCM(format) < 0 ) {
was_error = 1;
goto done;
}
IMA_ADPCM_encoded = 1;
break;
case MP3_CODE:
SDL_SetError("MPEG Layer 3 data not supported",
SDL_SwapLE16(format->encoding));
was_error = 1;
goto done;
default:
SDL_SetError("Unknown WAVE data format: 0x%.4x",
SDL_SwapLE16(format->encoding));
was_error = 1;
goto done;
}
SDL_memset(spec, 0, (sizeof *spec));
spec->freq = SDL_SwapLE32(format->frequency);
switch (SDL_SwapLE16(format->bitspersample)) {
case 4:
if ( MS_ADPCM_encoded || IMA_ADPCM_encoded ) {
spec->format = AUDIO_S16;
} else {
was_error = 1;
}
break;
case 8:
spec->format = AUDIO_U8;
break;
case 16:
spec->format = AUDIO_S16;
break;
default:
was_error = 1;
break;
}
if ( was_error ) {
SDL_SetError("Unknown %d-bit PCM data format",
SDL_SwapLE16(format->bitspersample));
goto done;
}
spec->channels = (Uint8)SDL_SwapLE16(format->channels);
spec->samples = 4096; /* Good default buffer size */
/* Read the audio data chunk */
*audio_buf = NULL;
do {
if ( *audio_buf != NULL ) {
SDL_free(*audio_buf);
*audio_buf = NULL;
}
lenread = ReadChunk(src, &chunk);
if ( lenread < 0 ) {
was_error = 1;
goto done;
}
*audio_len = lenread;
*audio_buf = chunk.data;
if(chunk.magic != DATA) headerDiff += lenread + 2 * sizeof(Uint32);
} while ( chunk.magic != DATA );
headerDiff += 2 * sizeof(Uint32); /* for the data chunk and len */
if ( MS_ADPCM_encoded ) {
if ( MS_ADPCM_decode(audio_buf, audio_len) < 0 ) {
was_error = 1;
goto done;
}
}
if ( IMA_ADPCM_encoded ) {
if ( IMA_ADPCM_decode(audio_buf, audio_len) < 0 ) {
was_error = 1;
goto done;
}
}
/* Don't return a buffer that isn't a multiple of samplesize */
samplesize = ((spec->format & 0xFF)/8)*spec->channels;
*audio_len &= ~(samplesize-1);
done:
if ( format != NULL ) {
SDL_free(format);
}
if ( src ) {
if ( freesrc ) {
SDL_RWclose(src);
} else {
/* seek to the end of the file (given by the RIFF chunk) */
SDL_RWseek(src, wavelen - chunk.length - headerDiff, RW_SEEK_CUR);
}
}
if ( was_error ) {
spec = NULL;
}
return(spec);
}
/* Since the WAV memory is allocated in the shared library, it must also
be freed here. (Necessary under Win32, VC++)
*/
void SDL_FreeWAV(Uint8 *audio_buf)
{
if ( audio_buf != NULL ) {
SDL_free(audio_buf);
}
}
static int ReadChunk(SDL_RWops *src, Chunk *chunk)
{
chunk->magic = SDL_ReadLE32(src);
chunk->length = SDL_ReadLE32(src);
chunk->data = (Uint8 *)SDL_malloc(chunk->length);
if ( chunk->data == NULL ) {
SDL_Error(SDL_ENOMEM);
return(-1);
}
if ( SDL_RWread(src, chunk->data, chunk->length, 1) != 1 ) {
SDL_Error(SDL_EFREAD);
SDL_free(chunk->data);
chunk->data = NULL;
return(-1);
}
return(chunk->length);
}

62
alienblaster/project/sdl/sdl-1.2/src/audio/SDL_wave.h Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is SDL_free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* WAVE files are little-endian */
/*******************************************/
/* Define values for Microsoft WAVE format */
/*******************************************/
#define RIFF 0x46464952 /* "RIFF" */
#define WAVE 0x45564157 /* "WAVE" */
#define FACT 0x74636166 /* "fact" */
#define LIST 0x5453494c /* "LIST" */
#define FMT 0x20746D66 /* "fmt " */
#define DATA 0x61746164 /* "data" */
#define PCM_CODE 0x0001
#define MS_ADPCM_CODE 0x0002
#define IMA_ADPCM_CODE 0x0011
#define MP3_CODE 0x0055
#define WAVE_MONO 1
#define WAVE_STEREO 2
/* Normally, these three chunks come consecutively in a WAVE file */
typedef struct WaveFMT {
/* Not saved in the chunk we read:
Uint32 FMTchunk;
Uint32 fmtlen;
*/
Uint16 encoding;
Uint16 channels; /* 1 = mono, 2 = stereo */
Uint32 frequency; /* One of 11025, 22050, or 44100 Hz */
Uint32 byterate; /* Average bytes per second */
Uint16 blockalign; /* Bytes per sample block */
Uint16 bitspersample; /* One of 8, 12, 16, or 4 for ADPCM */
} WaveFMT;
/* The general chunk found in the WAVE file */
typedef struct Chunk {
Uint32 magic;
Uint32 length;
Uint8 *data;
} Chunk;

611
alienblaster/project/sdl/sdl-1.2/src/audio/alsa/SDL_alsa_audio.c Normal file
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@@ -0,0 +1,611 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include <sys/types.h>
#include <signal.h> /* For kill() */
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_alsa_audio.h"
#ifdef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
#include "SDL_name.h"
#include "SDL_loadso.h"
#else
#define SDL_NAME(X) X
#endif
/* The tag name used by ALSA audio */
#define DRIVER_NAME "alsa"
/* Audio driver functions */
static int ALSA_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void ALSA_WaitAudio(_THIS);
static void ALSA_PlayAudio(_THIS);
static Uint8 *ALSA_GetAudioBuf(_THIS);
static void ALSA_CloseAudio(_THIS);
#ifdef SDL_AUDIO_DRIVER_ALSA_DYNAMIC
static const char *alsa_library = SDL_AUDIO_DRIVER_ALSA_DYNAMIC;
static void *alsa_handle = NULL;
static int alsa_loaded = 0;
static int (*SDL_NAME(snd_pcm_open))(snd_pcm_t **pcm, const char *name, snd_pcm_stream_t stream, int mode);
static int (*SDL_NAME(snd_pcm_close))(snd_pcm_t *pcm);
static snd_pcm_sframes_t (*SDL_NAME(snd_pcm_writei))(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
static int (*SDL_NAME(snd_pcm_recover))(snd_pcm_t *pcm, int err, int silent);
static int (*SDL_NAME(snd_pcm_prepare))(snd_pcm_t *pcm);
static int (*SDL_NAME(snd_pcm_drain))(snd_pcm_t *pcm);
static const char *(*SDL_NAME(snd_strerror))(int errnum);
static size_t (*SDL_NAME(snd_pcm_hw_params_sizeof))(void);
static size_t (*SDL_NAME(snd_pcm_sw_params_sizeof))(void);
static void (*SDL_NAME(snd_pcm_hw_params_copy))(snd_pcm_hw_params_t *dst, const snd_pcm_hw_params_t *src);
static int (*SDL_NAME(snd_pcm_hw_params_any))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
static int (*SDL_NAME(snd_pcm_hw_params_set_access))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_access_t access);
static int (*SDL_NAME(snd_pcm_hw_params_set_format))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_format_t val);
static int (*SDL_NAME(snd_pcm_hw_params_set_channels))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int val);
static int (*SDL_NAME(snd_pcm_hw_params_get_channels))(const snd_pcm_hw_params_t *params, unsigned int *val);
static int (*SDL_NAME(snd_pcm_hw_params_set_rate_near))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
static int (*SDL_NAME(snd_pcm_hw_params_set_period_size_near))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val, int *dir);
static int (*SDL_NAME(snd_pcm_hw_params_get_period_size))(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *frames, int *dir);
static int (*SDL_NAME(snd_pcm_hw_params_set_periods_near))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
static int (*SDL_NAME(snd_pcm_hw_params_get_periods))(const snd_pcm_hw_params_t *params, unsigned int *val, int *dir);
static int (*SDL_NAME(snd_pcm_hw_params_set_buffer_size_near))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
static int (*SDL_NAME(snd_pcm_hw_params_get_buffer_size))(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);
static int (*SDL_NAME(snd_pcm_hw_params))(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
/*
*/
static int (*SDL_NAME(snd_pcm_sw_params_current))(snd_pcm_t *pcm, snd_pcm_sw_params_t *swparams);
static int (*SDL_NAME(snd_pcm_sw_params_set_start_threshold))(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val);
static int (*SDL_NAME(snd_pcm_sw_params))(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
static int (*SDL_NAME(snd_pcm_nonblock))(snd_pcm_t *pcm, int nonblock);
static int (*SDL_NAME(snd_pcm_wait))(snd_pcm_t *pcm, int timeout);
#define snd_pcm_hw_params_sizeof SDL_NAME(snd_pcm_hw_params_sizeof)
#define snd_pcm_sw_params_sizeof SDL_NAME(snd_pcm_sw_params_sizeof)
/* cast funcs to char* first, to please GCC's strict aliasing rules. */
static struct {
const char *name;
void **func;
} alsa_functions[] = {
{ "snd_pcm_open", (void**)(char*)&SDL_NAME(snd_pcm_open) },
{ "snd_pcm_close", (void**)(char*)&SDL_NAME(snd_pcm_close) },
{ "snd_pcm_writei", (void**)(char*)&SDL_NAME(snd_pcm_writei) },
{ "snd_pcm_recover", (void**)(char*)&SDL_NAME(snd_pcm_recover) },
{ "snd_pcm_prepare", (void**)(char*)&SDL_NAME(snd_pcm_prepare) },
{ "snd_pcm_drain", (void**)(char*)&SDL_NAME(snd_pcm_drain) },
{ "snd_strerror", (void**)(char*)&SDL_NAME(snd_strerror) },
{ "snd_pcm_hw_params_sizeof", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_sizeof) },
{ "snd_pcm_sw_params_sizeof", (void**)(char*)&SDL_NAME(snd_pcm_sw_params_sizeof) },
{ "snd_pcm_hw_params_copy", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_copy) },
{ "snd_pcm_hw_params_any", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_any) },
{ "snd_pcm_hw_params_set_access", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_set_access) },
{ "snd_pcm_hw_params_set_format", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_set_format) },
{ "snd_pcm_hw_params_set_channels", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_set_channels) },
{ "snd_pcm_hw_params_get_channels", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_get_channels) },
{ "snd_pcm_hw_params_set_rate_near", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_set_rate_near) },
{ "snd_pcm_hw_params_set_period_size_near", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_set_period_size_near) },
{ "snd_pcm_hw_params_get_period_size", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_get_period_size) },
{ "snd_pcm_hw_params_set_periods_near", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_set_periods_near) },
{ "snd_pcm_hw_params_get_periods", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_get_periods) },
{ "snd_pcm_hw_params_set_buffer_size_near", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_set_buffer_size_near) },
{ "snd_pcm_hw_params_get_buffer_size", (void**)(char*)&SDL_NAME(snd_pcm_hw_params_get_buffer_size) },
{ "snd_pcm_hw_params", (void**)(char*)&SDL_NAME(snd_pcm_hw_params) },
{ "snd_pcm_sw_params_current", (void**)(char*)&SDL_NAME(snd_pcm_sw_params_current) },
{ "snd_pcm_sw_params_set_start_threshold", (void**)(char*)&SDL_NAME(snd_pcm_sw_params_set_start_threshold) },
{ "snd_pcm_sw_params", (void**)(char*)&SDL_NAME(snd_pcm_sw_params) },
{ "snd_pcm_nonblock", (void**)(char*)&SDL_NAME(snd_pcm_nonblock) },
{ "snd_pcm_wait", (void**)(char*)&SDL_NAME(snd_pcm_wait) },
};
static void UnloadALSALibrary(void) {
if (alsa_loaded) {
SDL_UnloadObject(alsa_handle);
alsa_handle = NULL;
alsa_loaded = 0;
}
}
static int LoadALSALibrary(void) {
int i, retval = -1;
alsa_handle = SDL_LoadObject(alsa_library);
if (alsa_handle) {
alsa_loaded = 1;
retval = 0;
for (i = 0; i < SDL_arraysize(alsa_functions); i++) {
*alsa_functions[i].func = SDL_LoadFunction(alsa_handle,alsa_functions[i].name);
if (!*alsa_functions[i].func) {
retval = -1;
UnloadALSALibrary();
break;
}
}
}
return retval;
}
#else
static void UnloadALSALibrary(void) {
return;
}
static int LoadALSALibrary(void) {
return 0;
}
#endif /* SDL_AUDIO_DRIVER_ALSA_DYNAMIC */
static const char *get_audio_device(int channels)
{
const char *device;
device = SDL_getenv("AUDIODEV"); /* Is there a standard variable name? */
if ( device == NULL ) {
switch (channels) {
case 6:
device = "plug:surround51";
break;
case 4:
device = "plug:surround40";
break;
default:
device = "default";
break;
}
}
return device;
}
/* Audio driver bootstrap functions */
static int Audio_Available(void)
{
int available;
int status;
snd_pcm_t *handle;
available = 0;
if (LoadALSALibrary() < 0) {
return available;
}
status = SDL_NAME(snd_pcm_open)(&handle, get_audio_device(2), SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
if ( status >= 0 ) {
available = 1;
SDL_NAME(snd_pcm_close)(handle);
}
UnloadALSALibrary();
return(available);
}
static void Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
UnloadALSALibrary();
}
static SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
LoadALSALibrary();
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this ) {
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
SDL_free(this);
}
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Set the function pointers */
this->OpenAudio = ALSA_OpenAudio;
this->WaitAudio = ALSA_WaitAudio;
this->PlayAudio = ALSA_PlayAudio;
this->GetAudioBuf = ALSA_GetAudioBuf;
this->CloseAudio = ALSA_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap ALSA_bootstrap = {
DRIVER_NAME, "ALSA PCM audio",
Audio_Available, Audio_CreateDevice
};
/* This function waits until it is possible to write a full sound buffer */
static void ALSA_WaitAudio(_THIS)
{
/* We're in blocking mode, so there's nothing to do here */
}
/*
* http://bugzilla.libsdl.org/show_bug.cgi?id=110
* "For Linux ALSA, this is FL-FR-RL-RR-C-LFE
* and for Windows DirectX [and CoreAudio], this is FL-FR-C-LFE-RL-RR"
*/
#define SWIZ6(T) \
T *ptr = (T *) mixbuf; \
Uint32 i; \
for (i = 0; i < this->spec.samples; i++, ptr += 6) { \
T tmp; \
tmp = ptr[2]; ptr[2] = ptr[4]; ptr[4] = tmp; \
tmp = ptr[3]; ptr[3] = ptr[5]; ptr[5] = tmp; \
}
static __inline__ void swizzle_alsa_channels_6_64bit(_THIS) { SWIZ6(Uint64); }
static __inline__ void swizzle_alsa_channels_6_32bit(_THIS) { SWIZ6(Uint32); }
static __inline__ void swizzle_alsa_channels_6_16bit(_THIS) { SWIZ6(Uint16); }
static __inline__ void swizzle_alsa_channels_6_8bit(_THIS) { SWIZ6(Uint8); }
#undef SWIZ6
/*
* Called right before feeding this->mixbuf to the hardware. Swizzle channels
* from Windows/Mac order to the format alsalib will want.
*/
static __inline__ void swizzle_alsa_channels(_THIS)
{
if (this->spec.channels == 6) {
const Uint16 fmtsize = (this->spec.format & 0xFF); /* bits/channel. */
if (fmtsize == 16)
swizzle_alsa_channels_6_16bit(this);
else if (fmtsize == 8)
swizzle_alsa_channels_6_8bit(this);
else if (fmtsize == 32)
swizzle_alsa_channels_6_32bit(this);
else if (fmtsize == 64)
swizzle_alsa_channels_6_64bit(this);
}
/* !!! FIXME: update this for 7.1 if needed, later. */
}
static void ALSA_PlayAudio(_THIS)
{
int status;
snd_pcm_uframes_t frames_left;
const Uint8 *sample_buf = (const Uint8 *) mixbuf;
const int frame_size = (((int) (this->spec.format & 0xFF)) / 8) * this->spec.channels;
swizzle_alsa_channels(this);
frames_left = ((snd_pcm_uframes_t) this->spec.samples);
while ( frames_left > 0 && this->enabled ) {
/* This works, but needs more testing before going live */
/*SDL_NAME(snd_pcm_wait)(pcm_handle, -1);*/
status = SDL_NAME(snd_pcm_writei)(pcm_handle, sample_buf, frames_left);
if ( status < 0 ) {
if ( status == -EAGAIN ) {
/* Apparently snd_pcm_recover() doesn't handle this case - does it assume snd_pcm_wait() above? */
SDL_Delay(1);
continue;
}
status = SDL_NAME(snd_pcm_recover)(pcm_handle, status, 0);
if ( status < 0 ) {
/* Hmm, not much we can do - abort */
fprintf(stderr, "ALSA write failed (unrecoverable): %s\n", SDL_NAME(snd_strerror)(status));
this->enabled = 0;
return;
}
continue;
}
sample_buf += status * frame_size;
frames_left -= status;
}
}
static Uint8 *ALSA_GetAudioBuf(_THIS)
{
return(mixbuf);
}
static void ALSA_CloseAudio(_THIS)
{
if ( mixbuf != NULL ) {
SDL_FreeAudioMem(mixbuf);
mixbuf = NULL;
}
if ( pcm_handle ) {
SDL_NAME(snd_pcm_drain)(pcm_handle);
SDL_NAME(snd_pcm_close)(pcm_handle);
pcm_handle = NULL;
}
}
static int ALSA_finalize_hardware(_THIS, SDL_AudioSpec *spec, snd_pcm_hw_params_t *hwparams, int override)
{
int status;
snd_pcm_uframes_t bufsize;
/* "set" the hardware with the desired parameters */
status = SDL_NAME(snd_pcm_hw_params)(pcm_handle, hwparams);
if ( status < 0 ) {
return(-1);
}
/* Get samples for the actual buffer size */
status = SDL_NAME(snd_pcm_hw_params_get_buffer_size)(hwparams, &bufsize);
if ( status < 0 ) {
return(-1);
}
if ( !override && bufsize != spec->samples * 2 ) {
return(-1);
}
/* FIXME: Is this safe to do? */
spec->samples = bufsize / 2;
/* This is useful for debugging */
if ( getenv("SDL_AUDIO_ALSA_DEBUG") ) {
snd_pcm_uframes_t persize = 0;
unsigned int periods = 0;
SDL_NAME(snd_pcm_hw_params_get_period_size)(hwparams, &persize, NULL);
SDL_NAME(snd_pcm_hw_params_get_periods)(hwparams, &periods, NULL);
fprintf(stderr, "ALSA: period size = %ld, periods = %u, buffer size = %lu\n", persize, periods, bufsize);
}
return(0);
}
static int ALSA_set_period_size(_THIS, SDL_AudioSpec *spec, snd_pcm_hw_params_t *params, int override)
{
const char *env;
int status;
snd_pcm_hw_params_t *hwparams;
snd_pcm_uframes_t frames;
unsigned int periods;
/* Copy the hardware parameters for this setup */
snd_pcm_hw_params_alloca(&hwparams);
SDL_NAME(snd_pcm_hw_params_copy)(hwparams, params);
if ( !override ) {
env = getenv("SDL_AUDIO_ALSA_SET_PERIOD_SIZE");
if ( env ) {
override = SDL_atoi(env);
if ( override == 0 ) {
return(-1);
}
}
}
frames = spec->samples;
status = SDL_NAME(snd_pcm_hw_params_set_period_size_near)(pcm_handle, hwparams, &frames, NULL);
if ( status < 0 ) {
return(-1);
}
periods = 2;
status = SDL_NAME(snd_pcm_hw_params_set_periods_near)(pcm_handle, hwparams, &periods, NULL);
if ( status < 0 ) {
return(-1);
}
return ALSA_finalize_hardware(this, spec, hwparams, override);
}
static int ALSA_set_buffer_size(_THIS, SDL_AudioSpec *spec, snd_pcm_hw_params_t *params, int override)
{
const char *env;
int status;
snd_pcm_hw_params_t *hwparams;
snd_pcm_uframes_t frames;
/* Copy the hardware parameters for this setup */
snd_pcm_hw_params_alloca(&hwparams);
SDL_NAME(snd_pcm_hw_params_copy)(hwparams, params);
if ( !override ) {
env = getenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE");
if ( env ) {
override = SDL_atoi(env);
if ( override == 0 ) {
return(-1);
}
}
}
frames = spec->samples * 2;
status = SDL_NAME(snd_pcm_hw_params_set_buffer_size_near)(pcm_handle, hwparams, &frames);
if ( status < 0 ) {
return(-1);
}
return ALSA_finalize_hardware(this, spec, hwparams, override);
}
static int ALSA_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
int status;
snd_pcm_hw_params_t *hwparams;
snd_pcm_sw_params_t *swparams;
snd_pcm_format_t format;
unsigned int rate;
unsigned int channels;
Uint16 test_format;
/* Open the audio device */
/* Name of device should depend on # channels in spec */
status = SDL_NAME(snd_pcm_open)(&pcm_handle, get_audio_device(spec->channels), SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);
if ( status < 0 ) {
SDL_SetError("Couldn't open audio device: %s", SDL_NAME(snd_strerror)(status));
return(-1);
}
/* Figure out what the hardware is capable of */
snd_pcm_hw_params_alloca(&hwparams);
status = SDL_NAME(snd_pcm_hw_params_any)(pcm_handle, hwparams);
if ( status < 0 ) {
SDL_SetError("Couldn't get hardware config: %s", SDL_NAME(snd_strerror)(status));
ALSA_CloseAudio(this);
return(-1);
}
/* SDL only uses interleaved sample output */
status = SDL_NAME(snd_pcm_hw_params_set_access)(pcm_handle, hwparams, SND_PCM_ACCESS_RW_INTERLEAVED);
if ( status < 0 ) {
SDL_SetError("Couldn't set interleaved access: %s", SDL_NAME(snd_strerror)(status));
ALSA_CloseAudio(this);
return(-1);
}
/* Try for a closest match on audio format */
status = -1;
for ( test_format = SDL_FirstAudioFormat(spec->format);
test_format && (status < 0); ) {
switch ( test_format ) {
case AUDIO_U8:
format = SND_PCM_FORMAT_U8;
break;
case AUDIO_S8:
format = SND_PCM_FORMAT_S8;
break;
case AUDIO_S16LSB:
format = SND_PCM_FORMAT_S16_LE;
break;
case AUDIO_S16MSB:
format = SND_PCM_FORMAT_S16_BE;
break;
case AUDIO_U16LSB:
format = SND_PCM_FORMAT_U16_LE;
break;
case AUDIO_U16MSB:
format = SND_PCM_FORMAT_U16_BE;
break;
default:
format = 0;
break;
}
if ( format != 0 ) {
status = SDL_NAME(snd_pcm_hw_params_set_format)(pcm_handle, hwparams, format);
}
if ( status < 0 ) {
test_format = SDL_NextAudioFormat();
}
}
if ( status < 0 ) {
SDL_SetError("Couldn't find any hardware audio formats");
ALSA_CloseAudio(this);
return(-1);
}
spec->format = test_format;
/* Set the number of channels */
status = SDL_NAME(snd_pcm_hw_params_set_channels)(pcm_handle, hwparams, spec->channels);
channels = spec->channels;
if ( status < 0 ) {
status = SDL_NAME(snd_pcm_hw_params_get_channels)(hwparams, &channels);
if ( status < 0 ) {
SDL_SetError("Couldn't set audio channels");
ALSA_CloseAudio(this);
return(-1);
}
spec->channels = channels;
}
/* Set the audio rate */
rate = spec->freq;
status = SDL_NAME(snd_pcm_hw_params_set_rate_near)(pcm_handle, hwparams, &rate, NULL);
if ( status < 0 ) {
SDL_SetError("Couldn't set audio frequency: %s", SDL_NAME(snd_strerror)(status));
ALSA_CloseAudio(this);
return(-1);
}
spec->freq = rate;
/* Set the buffer size, in samples */
if ( ALSA_set_period_size(this, spec, hwparams, 0) < 0 &&
ALSA_set_buffer_size(this, spec, hwparams, 0) < 0 ) {
/* Failed to set desired buffer size, do the best you can... */
if ( ALSA_set_period_size(this, spec, hwparams, 1) < 0 ) {
SDL_SetError("Couldn't set hardware audio parameters: %s", SDL_NAME(snd_strerror)(status));
ALSA_CloseAudio(this);
return(-1);
}
}
/* Set the software parameters */
snd_pcm_sw_params_alloca(&swparams);
status = SDL_NAME(snd_pcm_sw_params_current)(pcm_handle, swparams);
if ( status < 0 ) {
SDL_SetError("Couldn't get software config: %s", SDL_NAME(snd_strerror)(status));
ALSA_CloseAudio(this);
return(-1);
}
status = SDL_NAME(snd_pcm_sw_params_set_start_threshold)(pcm_handle, swparams, 1);
if ( status < 0 ) {
SDL_SetError("Couldn't set start threshold: %s", SDL_NAME(snd_strerror)(status));
ALSA_CloseAudio(this);
return(-1);
}
status = SDL_NAME(snd_pcm_sw_params)(pcm_handle, swparams);
if ( status < 0 ) {
SDL_SetError("Couldn't set software audio parameters: %s", SDL_NAME(snd_strerror)(status));
ALSA_CloseAudio(this);
return(-1);
}
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(spec);
/* Allocate mixing buffer */
mixlen = spec->size;
mixbuf = (Uint8 *)SDL_AllocAudioMem(mixlen);
if ( mixbuf == NULL ) {
ALSA_CloseAudio(this);
return(-1);
}
SDL_memset(mixbuf, spec->silence, spec->size);
/* Switch to blocking mode for playback */
SDL_NAME(snd_pcm_nonblock)(pcm_handle, 0);
/* We're ready to rock and roll. :-) */
return(0);
}

48
alienblaster/project/sdl/sdl-1.2/src/audio/alsa/SDL_alsa_audio.h Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _ALSA_PCM_audio_h
#define _ALSA_PCM_audio_h
#include <alsa/asoundlib.h>
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The audio device handle */
snd_pcm_t *pcm_handle;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
};
/* Old variable names */
#define pcm_handle (this->hidden->pcm_handle)
#define mixbuf (this->hidden->mixbuf)
#define mixlen (this->hidden->mixlen)
#endif /* _ALSA_PCM_audio_h */

1
alienblaster/project/sdl/sdl-1.2/src/audio/android/SDL_androidaudio.c Symbolic link
View File

@@ -0,0 +1 @@
../../../../sdl-1.3/src/audio/android/SDL_androidaudio.c

1
alienblaster/project/sdl/sdl-1.2/src/audio/android/SDL_androidaudio.h Symbolic link
View File

@@ -0,0 +1 @@
../../../../sdl-1.3/src/audio/android/SDL_androidaudio.h

348
alienblaster/project/sdl/sdl-1.2/src/audio/arts/SDL_artsaudio.c Normal file
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@@ -0,0 +1,348 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#include <unistd.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_artsaudio.h"
#ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
#include "SDL_name.h"
#include "SDL_loadso.h"
#else
#define SDL_NAME(X) X
#endif
/* The tag name used by artsc audio */
#define ARTS_DRIVER_NAME "arts"
/* Audio driver functions */
static int ARTS_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void ARTS_WaitAudio(_THIS);
static void ARTS_PlayAudio(_THIS);
static Uint8 *ARTS_GetAudioBuf(_THIS);
static void ARTS_CloseAudio(_THIS);
#ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
static const char *arts_library = SDL_AUDIO_DRIVER_ARTS_DYNAMIC;
static void *arts_handle = NULL;
static int arts_loaded = 0;
static int (*SDL_NAME(arts_init))(void);
static void (*SDL_NAME(arts_free))(void);
static arts_stream_t (*SDL_NAME(arts_play_stream))(int rate, int bits, int channels, const char *name);
static int (*SDL_NAME(arts_stream_set))(arts_stream_t s, arts_parameter_t param, int value);
static int (*SDL_NAME(arts_stream_get))(arts_stream_t s, arts_parameter_t param);
static int (*SDL_NAME(arts_write))(arts_stream_t s, const void *buffer, int count);
static void (*SDL_NAME(arts_close_stream))(arts_stream_t s);
static int (*SDL_NAME(arts_suspended))(void);
static const char *(*SDL_NAME(arts_error_text))(int errorcode);
static struct {
const char *name;
void **func;
} arts_functions[] = {
{ "arts_init", (void **)&SDL_NAME(arts_init) },
{ "arts_free", (void **)&SDL_NAME(arts_free) },
{ "arts_play_stream", (void **)&SDL_NAME(arts_play_stream) },
{ "arts_stream_set", (void **)&SDL_NAME(arts_stream_set) },
{ "arts_stream_get", (void **)&SDL_NAME(arts_stream_get) },
{ "arts_write", (void **)&SDL_NAME(arts_write) },
{ "arts_close_stream", (void **)&SDL_NAME(arts_close_stream) },
{ "arts_suspended", (void **)&SDL_NAME(arts_suspended) },
{ "arts_error_text", (void **)&SDL_NAME(arts_error_text) },
};
static void UnloadARTSLibrary()
{
if ( arts_loaded ) {
SDL_UnloadObject(arts_handle);
arts_handle = NULL;
arts_loaded = 0;
}
}
static int LoadARTSLibrary(void)
{
int i, retval = -1;
arts_handle = SDL_LoadObject(arts_library);
if ( arts_handle ) {
arts_loaded = 1;
retval = 0;
for ( i=0; i<SDL_arraysize(arts_functions); ++i ) {
*arts_functions[i].func = SDL_LoadFunction(arts_handle, arts_functions[i].name);
if ( !*arts_functions[i].func ) {
retval = -1;
UnloadARTSLibrary();
break;
}
}
}
return retval;
}
#else
static void UnloadARTSLibrary()
{
return;
}
static int LoadARTSLibrary(void)
{
return 0;
}
#endif /* SDL_AUDIO_DRIVER_ARTS_DYNAMIC */
/* Audio driver bootstrap functions */
static int Audio_Available(void)
{
int available = 0;
if ( LoadARTSLibrary() < 0 ) {
return available;
}
if ( SDL_NAME(arts_init)() == 0 ) {
if ( SDL_NAME(arts_suspended)() ) {
/* Play a stream so aRts doesn't crash */
arts_stream_t stream2;
stream2=SDL_NAME(arts_play_stream)(44100, 16, 2, "SDL");
SDL_NAME(arts_write)(stream2, "", 0);
SDL_NAME(arts_close_stream)(stream2);
available = 1;
}
SDL_NAME(arts_free)();
}
UnloadARTSLibrary();
return available;
}
static void Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
UnloadARTSLibrary();
}
static SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
LoadARTSLibrary();
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this ) {
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
SDL_free(this);
}
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
stream = 0;
/* Set the function pointers */
this->OpenAudio = ARTS_OpenAudio;
this->WaitAudio = ARTS_WaitAudio;
this->PlayAudio = ARTS_PlayAudio;
this->GetAudioBuf = ARTS_GetAudioBuf;
this->CloseAudio = ARTS_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap ARTS_bootstrap = {
ARTS_DRIVER_NAME, "Analog Realtime Synthesizer",
Audio_Available, Audio_CreateDevice
};
/* This function waits until it is possible to write a full sound buffer */
static void ARTS_WaitAudio(_THIS)
{
Sint32 ticks;
/* Check to see if the thread-parent process is still alive */
{ static int cnt = 0;
/* Note that this only works with thread implementations
that use a different process id for each thread.
*/
if (parent && (((++cnt)%10) == 0)) { /* Check every 10 loops */
if ( kill(parent, 0) < 0 ) {
this->enabled = 0;
}
}
}
/* Use timer for general audio synchronization */
ticks = ((Sint32)(next_frame - SDL_GetTicks()))-FUDGE_TICKS;
if ( ticks > 0 ) {
SDL_Delay(ticks);
}
}
static void ARTS_PlayAudio(_THIS)
{
int written;
/* Write the audio data */
written = SDL_NAME(arts_write)(stream, mixbuf, mixlen);
/* If timer synchronization is enabled, set the next write frame */
if ( frame_ticks ) {
next_frame += frame_ticks;
}
/* If we couldn't write, assume fatal error for now */
if ( written < 0 ) {
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", written);
#endif
}
static Uint8 *ARTS_GetAudioBuf(_THIS)
{
return(mixbuf);
}
static void ARTS_CloseAudio(_THIS)
{
if ( mixbuf != NULL ) {
SDL_FreeAudioMem(mixbuf);
mixbuf = NULL;
}
if ( stream ) {
SDL_NAME(arts_close_stream)(stream);
stream = 0;
}
SDL_NAME(arts_free)();
}
static int ARTS_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
int bits, frag_spec;
Uint16 test_format, format;
int error_code;
/* Reset the timer synchronization flag */
frame_ticks = 0.0;
mixbuf = NULL;
/* Try for a closest match on audio format */
format = 0;
bits = 0;
for ( test_format = SDL_FirstAudioFormat(spec->format);
! format && test_format; ) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
switch ( test_format ) {
case AUDIO_U8:
bits = 8;
format = 1;
break;
case AUDIO_S16LSB:
bits = 16;
format = 1;
break;
default:
format = 0;
break;
}
if ( ! format ) {
test_format = SDL_NextAudioFormat();
}
}
if ( format == 0 ) {
SDL_SetError("Couldn't find any hardware audio formats");
return(-1);
}
spec->format = test_format;
error_code = SDL_NAME(arts_init)();
if ( error_code != 0 ) {
SDL_SetError("Unable to initialize ARTS: %s", SDL_NAME(arts_error_text)(error_code));
return(-1);
}
if ( ! SDL_NAME(arts_suspended)() ) {
SDL_SetError("ARTS can not open audio device");
return(-1);
}
stream = SDL_NAME(arts_play_stream)(spec->freq, bits, spec->channels, "SDL");
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(spec);
/* Determine the power of two of the fragment size */
for ( frag_spec = 0; (0x01<<frag_spec) < spec->size; ++frag_spec );
if ( (0x01<<frag_spec) != spec->size ) {
SDL_SetError("Fragment size must be a power of two");
return(-1);
}
frag_spec |= 0x00020000; /* two fragments, for low latency */
#ifdef ARTS_P_PACKET_SETTINGS
SDL_NAME(arts_stream_set)(stream, ARTS_P_PACKET_SETTINGS, frag_spec);
#else
SDL_NAME(arts_stream_set)(stream, ARTS_P_PACKET_SIZE, frag_spec&0xffff);
SDL_NAME(arts_stream_set)(stream, ARTS_P_PACKET_COUNT, frag_spec>>16);
#endif
spec->size = SDL_NAME(arts_stream_get)(stream, ARTS_P_PACKET_SIZE);
/* Allocate mixing buffer */
mixlen = spec->size;
mixbuf = (Uint8 *)SDL_AllocAudioMem(mixlen);
if ( mixbuf == NULL ) {
return(-1);
}
SDL_memset(mixbuf, spec->silence, spec->size);
/* Get the parent process id (we're the parent of the audio thread) */
parent = getpid();
/* We're ready to rock and roll. :-) */
return(0);
}

60
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_artscaudio_h
#define _SDL_artscaudio_h
#include <artsc.h>
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The stream descriptor for the audio device */
arts_stream_t stream;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
/* Support for audio timing using a timer, in addition to select() */
float frame_ticks;
float next_frame;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
/* Old variable names */
#define stream (this->hidden->stream)
#define parent (this->hidden->parent)
#define mixbuf (this->hidden->mixbuf)
#define mixlen (this->hidden->mixlen)
#define frame_ticks (this->hidden->frame_ticks)
#define next_frame (this->hidden->next_frame)
#endif /* _SDL_artscaudio_h */

225
alienblaster/project/sdl/sdl-1.2/src/audio/baudio/SDL_beaudio.cc Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to the audio stream on BeOS */
#include <SoundPlayer.h>
#include "../../main/beos/SDL_BeApp.h"
extern "C" {
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "../SDL_sysaudio.h"
#include "../../thread/beos/SDL_systhread_c.h"
#include "SDL_beaudio.h"
/* Audio driver functions */
static int BE_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void BE_WaitAudio(_THIS);
static void BE_PlayAudio(_THIS);
static Uint8 *BE_GetAudioBuf(_THIS);
static void BE_CloseAudio(_THIS);
/* Audio driver bootstrap functions */
static int Audio_Available(void)
{
return(1);
}
static void Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *device;
/* Initialize all variables that we clean on shutdown */
device = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( device ) {
SDL_memset(device, 0, (sizeof *device));
device->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *device->hidden));
}
if ( (device == NULL) || (device->hidden == NULL) ) {
SDL_OutOfMemory();
if ( device ) {
SDL_free(device);
}
return(0);
}
SDL_memset(device->hidden, 0, (sizeof *device->hidden));
/* Set the function pointers */
device->OpenAudio = BE_OpenAudio;
device->WaitAudio = BE_WaitAudio;
device->PlayAudio = BE_PlayAudio;
device->GetAudioBuf = BE_GetAudioBuf;
device->CloseAudio = BE_CloseAudio;
device->free = Audio_DeleteDevice;
return device;
}
AudioBootStrap BAUDIO_bootstrap = {
"baudio", "BeOS BSoundPlayer",
Audio_Available, Audio_CreateDevice
};
/* The BeOS callback for handling the audio buffer */
static void FillSound(void *device, void *stream, size_t len,
const media_raw_audio_format &format)
{
SDL_AudioDevice *audio = (SDL_AudioDevice *)device;
/* Silence the buffer, since it's ours */
SDL_memset(stream, audio->spec.silence, len);
/* Only do soemthing if audio is enabled */
if ( ! audio->enabled )
return;
if ( ! audio->paused ) {
if ( audio->convert.needed ) {
SDL_mutexP(audio->mixer_lock);
(*audio->spec.callback)(audio->spec.userdata,
(Uint8 *)audio->convert.buf,audio->convert.len);
SDL_mutexV(audio->mixer_lock);
SDL_ConvertAudio(&audio->convert);
SDL_memcpy(stream,audio->convert.buf,audio->convert.len_cvt);
} else {
SDL_mutexP(audio->mixer_lock);
(*audio->spec.callback)(audio->spec.userdata,
(Uint8 *)stream, len);
SDL_mutexV(audio->mixer_lock);
}
}
return;
}
/* Dummy functions -- we don't use thread-based audio */
void BE_WaitAudio(_THIS)
{
return;
}
void BE_PlayAudio(_THIS)
{
return;
}
Uint8 *BE_GetAudioBuf(_THIS)
{
return(NULL);
}
void BE_CloseAudio(_THIS)
{
if ( audio_obj ) {
audio_obj->Stop();
delete audio_obj;
audio_obj = NULL;
}
/* Quit the Be Application, if there's nothing left to do */
SDL_QuitBeApp();
}
int BE_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
int valid_datatype = 0;
media_raw_audio_format format;
Uint16 test_format = SDL_FirstAudioFormat(spec->format);
/* Parse the audio format and fill the Be raw audio format */
memset(&format, '\0', sizeof (media_raw_audio_format));
format.byte_order = B_MEDIA_LITTLE_ENDIAN;
format.frame_rate = (float) spec->freq;
format.channel_count = spec->channels; /* !!! FIXME: support > 2? */
while ((!valid_datatype) && (test_format)) {
valid_datatype = 1;
spec->format = test_format;
switch (test_format) {
case AUDIO_S8:
format.format = media_raw_audio_format::B_AUDIO_CHAR;
break;
case AUDIO_U8:
format.format = media_raw_audio_format::B_AUDIO_UCHAR;
break;
case AUDIO_S16LSB:
format.format = media_raw_audio_format::B_AUDIO_SHORT;
break;
case AUDIO_S16MSB:
format.format = media_raw_audio_format::B_AUDIO_SHORT;
format.byte_order = B_MEDIA_BIG_ENDIAN;
break;
default:
valid_datatype = 0;
test_format = SDL_NextAudioFormat();
break;
}
}
if (!valid_datatype) { /* shouldn't happen, but just in case... */
SDL_SetError("Unsupported audio format");
return (-1);
}
/* Initialize the Be Application, if it's not already started */
if (SDL_InitBeApp() < 0) {
return (-1);
}
format.buffer_size = spec->samples;
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(spec);
/* Subscribe to the audio stream (creates a new thread) */
{ sigset_t omask;
SDL_MaskSignals(&omask);
audio_obj = new BSoundPlayer(&format, "SDL Audio", FillSound,
NULL, _this);
SDL_UnmaskSignals(&omask);
}
if ( audio_obj->Start() == B_NO_ERROR ) {
audio_obj->SetHasData(true);
} else {
SDL_SetError("Unable to start Be audio");
return(-1);
}
/* We're running! */
return(1);
}
}; /* Extern C */

39
alienblaster/project/sdl/sdl-1.2/src/audio/baudio/SDL_beaudio.h Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_lowaudio_h
#define _SDL_lowaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *_this
struct SDL_PrivateAudioData {
BSoundPlayer *audio_obj;
};
/* Old variable names */
#define audio_obj (_this->hidden->audio_obj)
#endif /* _SDL_lowaudio_h */

404
alienblaster/project/sdl/sdl-1.2/src/audio/bsd/SDL_bsdaudio.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/*
* Driver for native OpenBSD/NetBSD audio(4).
* vedge@vedge.com.ar.
*/
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/audioio.h>
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_bsdaudio.h"
/* The tag name used by NetBSD/OpenBSD audio */
#ifdef __NetBSD__
#define BSD_AUDIO_DRIVER_NAME "netbsd"
#define BSD_AUDIO_DRIVER_DESC "Native NetBSD audio"
#else
#define BSD_AUDIO_DRIVER_NAME "openbsd"
#define BSD_AUDIO_DRIVER_DESC "Native OpenBSD audio"
#endif
/* Open the audio device for playback, and don't block if busy */
/* #define USE_BLOCKING_WRITES */
/* Use timer for synchronization */
/* #define USE_TIMER_SYNC */
/* #define DEBUG_AUDIO */
/* #define DEBUG_AUDIO_STREAM */
#ifdef USE_BLOCKING_WRITES
#define OPEN_FLAGS O_WRONLY
#else
#define OPEN_FLAGS (O_WRONLY|O_NONBLOCK)
#endif
/* Audio driver functions */
static void OBSD_WaitAudio(_THIS);
static int OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void OBSD_PlayAudio(_THIS);
static Uint8 *OBSD_GetAudioBuf(_THIS);
static void OBSD_CloseAudio(_THIS);
#ifdef DEBUG_AUDIO
static void OBSD_Status(_THIS);
#endif
/* Audio driver bootstrap functions */
static int
Audio_Available(void)
{
int fd;
int available;
available = 0;
fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 0);
if(fd >= 0) {
available = 1;
close(fd);
}
return(available);
}
static void
Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_AudioDevice
*Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
this = (SDL_AudioDevice*)SDL_malloc(sizeof(SDL_AudioDevice));
if(this) {
SDL_memset(this, 0, (sizeof *this));
this->hidden =
(struct SDL_PrivateAudioData*)SDL_malloc((sizeof *this->hidden));
}
if((this == NULL) || (this->hidden == NULL)) {
SDL_OutOfMemory();
if(this) SDL_free(this);
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
audio_fd = -1;
/* Set the function pointers */
this->OpenAudio = OBSD_OpenAudio;
this->WaitAudio = OBSD_WaitAudio;
this->PlayAudio = OBSD_PlayAudio;
this->GetAudioBuf = OBSD_GetAudioBuf;
this->CloseAudio = OBSD_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap BSD_AUDIO_bootstrap = {
BSD_AUDIO_DRIVER_NAME, BSD_AUDIO_DRIVER_DESC,
Audio_Available, Audio_CreateDevice
};
/* This function waits until it is possible to write a full sound buffer */
static void
OBSD_WaitAudio(_THIS)
{
#ifndef USE_BLOCKING_WRITES /* Not necessary when using blocking writes */
/* See if we need to use timed audio synchronization */
if ( frame_ticks ) {
/* Use timer for general audio synchronization */
Sint32 ticks;
ticks = ((Sint32)(next_frame - SDL_GetTicks()))-FUDGE_TICKS;
if ( ticks > 0 ) {
SDL_Delay(ticks);
}
} else {
/* Use select() for audio synchronization */
fd_set fdset;
struct timeval timeout;
FD_ZERO(&fdset);
FD_SET(audio_fd, &fdset);
timeout.tv_sec = 10;
timeout.tv_usec = 0;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Waiting for audio to get ready\n");
#endif
if ( select(audio_fd+1, NULL, &fdset, NULL, &timeout) <= 0 ) {
const char *message =
"Audio timeout - buggy audio driver? (disabled)";
/* In general we should never print to the screen,
but in this case we have no other way of letting
the user know what happened.
*/
fprintf(stderr, "SDL: %s\n", message);
this->enabled = 0;
/* Don't try to close - may hang */
audio_fd = -1;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Done disabling audio\n");
#endif
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Ready!\n");
#endif
}
#endif /* !USE_BLOCKING_WRITES */
}
static void
OBSD_PlayAudio(_THIS)
{
int written, p=0;
/* Write the audio data, checking for EAGAIN on broken audio drivers */
do {
written = write(audio_fd, &mixbuf[p], mixlen-p);
if (written>0)
p += written;
if (written == -1 && errno != 0 && errno != EAGAIN && errno != EINTR)
{
/* Non recoverable error has occurred. It should be reported!!! */
perror("audio");
break;
}
if ( p < written || ((written < 0) && ((errno == 0) || (errno == EAGAIN))) ) {
SDL_Delay(1); /* Let a little CPU time go by */
}
} while ( p < written );
/* If timer synchronization is enabled, set the next write frame */
if ( frame_ticks ) {
next_frame += frame_ticks;
}
/* If we couldn't write, assume fatal error for now */
if ( written < 0 ) {
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", written);
#endif
}
static Uint8
*OBSD_GetAudioBuf(_THIS)
{
return(mixbuf);
}
static void
OBSD_CloseAudio(_THIS)
{
if(mixbuf != NULL) {
SDL_FreeAudioMem(mixbuf);
mixbuf = NULL;
}
if(audio_fd >= 0) {
close(audio_fd);
audio_fd = -1;
}
}
#ifdef DEBUG_AUDIO
void
OBSD_Status(_THIS)
{
audio_info_t info;
if(ioctl(audio_fd, AUDIO_GETINFO, &info) < 0) {
fprintf(stderr,"AUDIO_GETINFO failed.\n");
return;
}
fprintf(stderr,"\n"
"[play/record info]\n"
"buffer size : %d bytes\n"
"sample rate : %i Hz\n"
"channels : %i\n"
"precision : %i-bit\n"
"encoding : 0x%x\n"
"seek : %i\n"
"sample count : %i\n"
"EOF count : %i\n"
"paused : %s\n"
"error occured : %s\n"
"waiting : %s\n"
"active : %s\n"
"",
info.play.buffer_size,
info.play.sample_rate,
info.play.channels,
info.play.precision,
info.play.encoding,
info.play.seek,
info.play.samples,
info.play.eof,
info.play.pause ? "yes" : "no",
info.play.error ? "yes" : "no",
info.play.waiting ? "yes" : "no",
info.play.active ? "yes": "no");
fprintf(stderr,"\n"
"[audio info]\n"
"monitor_gain : %i\n"
"hw block size : %d bytes\n"
"hi watermark : %i\n"
"lo watermark : %i\n"
"audio mode : %s\n"
"",
info.monitor_gain,
info.blocksize,
info.hiwat, info.lowat,
(info.mode == AUMODE_PLAY) ? "PLAY"
: (info.mode = AUMODE_RECORD) ? "RECORD"
: (info.mode == AUMODE_PLAY_ALL ? "PLAY_ALL"
: "?"));
}
#endif /* DEBUG_AUDIO */
static int
OBSD_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
char audiodev[64];
Uint16 format;
audio_info_t info;
AUDIO_INITINFO(&info);
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(spec);
#ifdef USE_TIMER_SYNC
frame_ticks = 0.0;
#endif
/* Open the audio device */
audio_fd = SDL_OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 0);
if(audio_fd < 0) {
SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
return(-1);
}
/* Set to play mode */
info.mode = AUMODE_PLAY;
if(ioctl(audio_fd, AUDIO_SETINFO, &info) < 0) {
SDL_SetError("Couldn't put device into play mode");
return(-1);
}
mixbuf = NULL;
AUDIO_INITINFO(&info);
for (format = SDL_FirstAudioFormat(spec->format);
format; format = SDL_NextAudioFormat())
{
switch(format) {
case AUDIO_U8:
info.play.encoding = AUDIO_ENCODING_ULINEAR;
info.play.precision = 8;
break;
case AUDIO_S8:
info.play.encoding = AUDIO_ENCODING_SLINEAR;
info.play.precision = 8;
break;
case AUDIO_S16LSB:
info.play.encoding = AUDIO_ENCODING_SLINEAR_LE;
info.play.precision = 16;
break;
case AUDIO_S16MSB:
info.play.encoding = AUDIO_ENCODING_SLINEAR_BE;
info.play.precision = 16;
break;
case AUDIO_U16LSB:
info.play.encoding = AUDIO_ENCODING_ULINEAR_LE;
info.play.precision = 16;
break;
case AUDIO_U16MSB:
info.play.encoding = AUDIO_ENCODING_ULINEAR_BE;
info.play.precision = 16;
break;
default:
continue;
}
if (ioctl(audio_fd, AUDIO_SETINFO, &info) == 0)
break;
}
if(!format) {
SDL_SetError("No supported encoding for 0x%x", spec->format);
return(-1);
}
spec->format = format;
AUDIO_INITINFO(&info);
info.play.channels = spec->channels;
if (ioctl(audio_fd, AUDIO_SETINFO, &info) == -1)
spec->channels = 1;
AUDIO_INITINFO(&info);
info.play.sample_rate = spec->freq;
info.blocksize = spec->size;
info.hiwat = 5;
info.lowat = 3;
(void)ioctl(audio_fd, AUDIO_SETINFO, &info);
(void)ioctl(audio_fd, AUDIO_GETINFO, &info);
spec->freq = info.play.sample_rate;
/* Allocate mixing buffer */
mixlen = spec->size;
mixbuf = (Uint8*)SDL_AllocAudioMem(mixlen);
if(mixbuf == NULL) {
return(-1);
}
SDL_memset(mixbuf, spec->silence, spec->size);
/* Get the parent process id (we're the parent of the audio thread) */
parent = getpid();
#ifdef DEBUG_AUDIO
OBSD_Status(this);
#endif
/* We're ready to rock and roll. :-) */
return(0);
}

58
alienblaster/project/sdl/sdl-1.2/src/audio/bsd/SDL_bsdaudio.h Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_openbsdaudio_h
#define _SDL_openbsdaudio_h
#include "../SDL_sysaudio.h"
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData
{
/* The file descriptor for the audio device */
int audio_fd;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
/* Support for audio timing using a timer, in addition to select() */
float frame_ticks;
float next_frame;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
/* Old variable names */
#define audio_fd (this->hidden->audio_fd)
#define parent (this->hidden->parent)
#define mixbuf (this->hidden->mixbuf)
#define mixlen (this->hidden->mixlen)
#define frame_ticks (this->hidden->frame_ticks)
#define next_frame (this->hidden->next_frame)
#endif /* _SDL_openbsdaudio_h */

441
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "SDL_dart.h"
// Buffer states:
#define BUFFER_EMPTY 0
#define BUFFER_USED 1
typedef struct _tMixBufferDesc {
int iBufferUsage; // BUFFER_EMPTY or BUFFER_USED
SDL_AudioDevice *pSDLAudioDevice;
} tMixBufferDesc, *pMixBufferDesc;
//---------------------------------------------------------------------
// DARTEventFunc
//
// This function is called by DART, when an event occures, like end of
// playback of a buffer, etc...
//---------------------------------------------------------------------
LONG APIENTRY DARTEventFunc(ULONG ulStatus,
PMCI_MIX_BUFFER pBuffer,
ULONG ulFlags)
{
if (ulFlags && MIX_WRITE_COMPLETE)
{ // Playback of buffer completed!
// Get pointer to buffer description
pMixBufferDesc pBufDesc;
if (pBuffer)
{
pBufDesc = (pMixBufferDesc) (*pBuffer).ulUserParm;
if (pBufDesc)
{
SDL_AudioDevice *pSDLAudioDevice = pBufDesc->pSDLAudioDevice;
// Set the buffer to be empty
pBufDesc->iBufferUsage = BUFFER_EMPTY;
// And notify DART feeder thread that it will have to work a bit.
if (pSDLAudioDevice)
DosPostEventSem(pSDLAudioDevice->hidden->hevAudioBufferPlayed);
}
}
}
return TRUE;
}
int DART_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
Uint16 test_format = SDL_FirstAudioFormat(spec->format);
int valid_datatype = 0;
MCI_AMP_OPEN_PARMS AmpOpenParms;
MCI_GENERIC_PARMS GenericParms;
int iDeviceOrd = 0; // Default device to be used
int bOpenShared = 1; // Try opening it shared
int iBits = 16; // Default is 16 bits signed
int iFreq = 44100; // Default is 44KHz
int iChannels = 2; // Default is 2 channels (Stereo)
int iNumBufs = 2; // Number of audio buffers: 2
int iBufSize;
int iOpenMode;
int iSilence;
int rc;
// First thing is to try to open a given DART device!
SDL_memset(&AmpOpenParms, 0, sizeof(MCI_AMP_OPEN_PARMS));
// pszDeviceType should contain the device type in low word, and device ordinal in high word!
AmpOpenParms.pszDeviceType = (PSZ) (MCI_DEVTYPE_AUDIO_AMPMIX | (iDeviceOrd << 16));
iOpenMode = MCI_WAIT | MCI_OPEN_TYPE_ID;
if (bOpenShared) iOpenMode |= MCI_OPEN_SHAREABLE;
rc = mciSendCommand( 0, MCI_OPEN,
iOpenMode,
(PVOID) &AmpOpenParms, 0);
if (rc!=MCIERR_SUCCESS) // No audio available??
return (-1);
// Save the device ID we got from DART!
// We will use this in the next calls!
iDeviceOrd = AmpOpenParms.usDeviceID;
// Determine the audio parameters from the AudioSpec
if (spec->channels > 2)
spec->channels = 2; // !!! FIXME: more than stereo support in OS/2?
while ((!valid_datatype) && (test_format)) {
spec->format = test_format;
valid_datatype = 1;
switch (test_format) {
case AUDIO_U8:
// Unsigned 8 bit audio data
iSilence = 0x80;
iBits = 8;
break;
case AUDIO_S16LSB:
// Signed 16 bit audio data
iSilence = 0x00;
iBits = 16;
break;
default:
valid_datatype = 0;
test_format = SDL_NextAudioFormat();
break;
}
}
if (!valid_datatype) { // shouldn't happen, but just in case...
// Close DART, and exit with error code!
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
SDL_SetError("Unsupported audio format");
return (-1);
}
iFreq = spec->freq;
iChannels = spec->channels;
/* Update the fragment size as size in bytes */
SDL_CalculateAudioSpec(spec);
iBufSize = spec->size;
// Now query this device if it supports the given freq/bits/channels!
SDL_memset(&(_this->hidden->MixSetupParms), 0, sizeof(MCI_MIXSETUP_PARMS));
_this->hidden->MixSetupParms.ulBitsPerSample = iBits;
_this->hidden->MixSetupParms.ulFormatTag = MCI_WAVE_FORMAT_PCM;
_this->hidden->MixSetupParms.ulSamplesPerSec = iFreq;
_this->hidden->MixSetupParms.ulChannels = iChannels;
_this->hidden->MixSetupParms.ulFormatMode = MCI_PLAY;
_this->hidden->MixSetupParms.ulDeviceType = MCI_DEVTYPE_WAVEFORM_AUDIO;
_this->hidden->MixSetupParms.pmixEvent = DARTEventFunc;
rc = mciSendCommand (iDeviceOrd, MCI_MIXSETUP,
MCI_WAIT | MCI_MIXSETUP_QUERYMODE,
&(_this->hidden->MixSetupParms), 0);
if (rc!=MCIERR_SUCCESS)
{ // The device cannot handle this format!
// Close DART, and exit with error code!
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
SDL_SetError("Audio device doesn't support requested audio format");
return(-1);
}
// The device can handle this format, so initialize!
rc = mciSendCommand(iDeviceOrd, MCI_MIXSETUP,
MCI_WAIT | MCI_MIXSETUP_INIT,
&(_this->hidden->MixSetupParms), 0);
if (rc!=MCIERR_SUCCESS)
{ // The device could not be opened!
// Close DART, and exit with error code!
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
SDL_SetError("Audio device could not be set up");
return(-1);
}
// Ok, the device is initialized.
// Now we should allocate buffers. For this, we need a place where
// the buffer descriptors will be:
_this->hidden->pMixBuffers = (MCI_MIX_BUFFER *) SDL_malloc(sizeof(MCI_MIX_BUFFER)*iNumBufs);
if (!(_this->hidden->pMixBuffers))
{ // Not enough memory!
// Close DART, and exit with error code!
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
SDL_SetError("Not enough memory for audio buffer descriptors");
return(-1);
}
// Now that we have the place for buffer list, we can ask DART for the
// buffers!
_this->hidden->BufferParms.ulNumBuffers = iNumBufs; // Number of buffers
_this->hidden->BufferParms.ulBufferSize = iBufSize; // each with this size
_this->hidden->BufferParms.pBufList = _this->hidden->pMixBuffers; // getting descriptorts into this list
// Allocate buffers!
rc = mciSendCommand(iDeviceOrd, MCI_BUFFER,
MCI_WAIT | MCI_ALLOCATE_MEMORY,
&(_this->hidden->BufferParms), 0);
if ((rc!=MCIERR_SUCCESS) || (iNumBufs != _this->hidden->BufferParms.ulNumBuffers) || (_this->hidden->BufferParms.ulBufferSize==0))
{ // Could not allocate memory!
// Close DART, and exit with error code!
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
SDL_SetError("DART could not allocate buffers");
return(-1);
}
// Ok, we have all the buffers allocated, let's mark them!
{
int i;
for (i=0; i<iNumBufs; i++)
{
pMixBufferDesc pBufferDesc = (pMixBufferDesc) SDL_malloc(sizeof(tMixBufferDesc));;
// Check if this buffer was really allocated by DART
if ((!(_this->hidden->pMixBuffers[i].pBuffer)) || (!pBufferDesc))
{ // Wrong buffer!
// Close DART, and exit with error code!
// Free buffer descriptions
{ int j;
for (j=0; j<i; j++) SDL_free((void *)(_this->hidden->pMixBuffers[j].ulUserParm));
}
// and cleanup
mciSendCommand(iDeviceOrd, MCI_BUFFER, MCI_WAIT | MCI_DEALLOCATE_MEMORY, &(_this->hidden->BufferParms), 0);
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
SDL_SetError("Error at internal buffer check");
return(-1);
}
pBufferDesc->iBufferUsage = BUFFER_EMPTY;
pBufferDesc->pSDLAudioDevice = _this;
_this->hidden->pMixBuffers[i].ulBufferLength = _this->hidden->BufferParms.ulBufferSize;
_this->hidden->pMixBuffers[i].ulUserParm = (ULONG) pBufferDesc; // User parameter: Description of buffer
_this->hidden->pMixBuffers[i].ulFlags = 0; // Some stuff should be flagged here for DART, like end of
// audio data, but as we will continously send
// audio data, there will be no end.:)
SDL_memset(_this->hidden->pMixBuffers[i].pBuffer, iSilence, iBufSize);
}
}
_this->hidden->iNextFreeBuffer = 0;
_this->hidden->iLastPlayedBuf = -1;
// Create event semaphore
if (DosCreateEventSem(NULL, &(_this->hidden->hevAudioBufferPlayed), 0, FALSE)!=NO_ERROR)
{
// Could not create event semaphore!
{
int i;
for (i=0; i<iNumBufs; i++) SDL_free((void *)(_this->hidden->pMixBuffers[i].ulUserParm));
}
mciSendCommand(iDeviceOrd, MCI_BUFFER, MCI_WAIT | MCI_DEALLOCATE_MEMORY, &(_this->hidden->BufferParms), 0);
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
mciSendCommand(iDeviceOrd, MCI_CLOSE, MCI_WAIT, &GenericParms, 0);
SDL_SetError("Could not create event semaphore");
return(-1);
}
// Store the new settings in global variables
_this->hidden->iCurrDeviceOrd = iDeviceOrd;
_this->hidden->iCurrFreq = iFreq;
_this->hidden->iCurrBits = iBits;
_this->hidden->iCurrChannels = iChannels;
_this->hidden->iCurrNumBufs = iNumBufs;
_this->hidden->iCurrBufSize = iBufSize;
return (0);
}
void DART_ThreadInit(_THIS)
{
return;
}
/* This function waits until it is possible to write a full sound buffer */
void DART_WaitAudio(_THIS)
{
int i;
pMixBufferDesc pBufDesc;
ULONG ulPostCount;
DosResetEventSem(_this->hidden->hevAudioBufferPlayed, &ulPostCount);
// If there is already an empty buffer, then return now!
for (i=0; i<_this->hidden->iCurrNumBufs; i++)
{
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[i].ulUserParm;
if (pBufDesc->iBufferUsage == BUFFER_EMPTY)
return;
}
// If there is no empty buffer, wait for one to be empty!
DosWaitEventSem(_this->hidden->hevAudioBufferPlayed, 1000); // Wait max 1 sec!!! Important!
return;
}
void DART_PlayAudio(_THIS)
{
int iFreeBuf = _this->hidden->iNextFreeBuffer;
pMixBufferDesc pBufDesc;
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[iFreeBuf].ulUserParm;
pBufDesc->iBufferUsage = BUFFER_USED;
// Send it to DART to be queued
_this->hidden->MixSetupParms.pmixWrite(_this->hidden->MixSetupParms.ulMixHandle,
&(_this->hidden->pMixBuffers[iFreeBuf]), 1);
_this->hidden->iLastPlayedBuf = iFreeBuf;
iFreeBuf = (iFreeBuf+1) % _this->hidden->iCurrNumBufs;
_this->hidden->iNextFreeBuffer = iFreeBuf;
}
Uint8 *DART_GetAudioBuf(_THIS)
{
int iFreeBuf;
Uint8 *pResult;
pMixBufferDesc pBufDesc;
if (_this)
{
if (_this->hidden)
{
iFreeBuf = _this->hidden->iNextFreeBuffer;
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[iFreeBuf].ulUserParm;
if (pBufDesc)
{
if (pBufDesc->iBufferUsage == BUFFER_EMPTY)
{
pResult = _this->hidden->pMixBuffers[iFreeBuf].pBuffer;
return pResult;
}
} else
printf("[DART_GetAudioBuf] : ERROR! pBufDesc = %p\n", pBufDesc);
} else
printf("[DART_GetAudioBuf] : ERROR! _this->hidden = %p\n", _this->hidden);
} else
printf("[DART_GetAudioBuf] : ERROR! _this = %p\n", _this);
return NULL;
}
void DART_WaitDone(_THIS)
{
pMixBufferDesc pBufDesc;
ULONG ulPostCount;
APIRET rc;
pBufDesc = (pMixBufferDesc) _this->hidden->pMixBuffers[_this->hidden->iLastPlayedBuf].ulUserParm;
rc = NO_ERROR;
while ((pBufDesc->iBufferUsage != BUFFER_EMPTY) && (rc==NO_ERROR))
{
DosResetEventSem(_this->hidden->hevAudioBufferPlayed, &ulPostCount);
rc = DosWaitEventSem(_this->hidden->hevAudioBufferPlayed, 1000); // 1 sec timeout! Important!
}
}
void DART_CloseAudio(_THIS)
{
MCI_GENERIC_PARMS GenericParms;
int rc;
// Stop DART playback
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_STOP, MCI_WAIT, &GenericParms, 0);
if (rc!=MCIERR_SUCCESS)
{
#ifdef SFX_DEBUG_BUILD
printf("Could not stop DART playback!\n");
fflush(stdout);
#endif
}
// Close event semaphore
DosCloseEventSem(_this->hidden->hevAudioBufferPlayed);
// Free memory of buffer descriptions
{
int i;
for (i=0; i<_this->hidden->iCurrNumBufs; i++) SDL_free((void *)(_this->hidden->pMixBuffers[i].ulUserParm));
}
// Deallocate buffers
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_BUFFER, MCI_WAIT | MCI_DEALLOCATE_MEMORY, &(_this->hidden->BufferParms), 0);
// Free bufferlist
SDL_free(_this->hidden->pMixBuffers); _this->hidden->pMixBuffers = NULL;
// Close dart
rc = mciSendCommand(_this->hidden->iCurrDeviceOrd, MCI_CLOSE, MCI_WAIT, &(GenericParms), 0);
}
/* Audio driver bootstrap functions */
int Audio_Available(void)
{
return(1);
}
void Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this )
{
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) )
{
SDL_OutOfMemory();
if ( this )
SDL_free(this);
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Set the function pointers */
this->OpenAudio = DART_OpenAudio;
this->ThreadInit = DART_ThreadInit;
this->WaitAudio = DART_WaitAudio;
this->PlayAudio = DART_PlayAudio;
this->GetAudioBuf = DART_GetAudioBuf;
this->WaitDone = DART_WaitDone;
this->CloseAudio = DART_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap DART_bootstrap = {
"dart", "OS/2 Direct Audio RouTines (DART)",
Audio_Available, Audio_CreateDevice
};

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_lowaudio_h
#define _SDL_lowaudio_h
#define INCL_TYPES
#define INCL_DOSSEMAPHORES
#define INCL_DOSRESOURCES
#define INCL_DOSMISC
#define INCL_DOSERRORS
#define INCL_OS2MM
#define INCL_MMIOOS2
#define INCL_MCIOS2
#include <os2.h>
#include <os2me.h> // DART stuff and MMIO stuff
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *_this
/* The DirectSound objects */
struct SDL_PrivateAudioData
{
int iCurrDeviceOrd;
int iCurrFreq;
int iCurrBits;
int iCurrChannels;
int iCurrNumBufs;
int iCurrBufSize;
int iLastPlayedBuf;
int iNextFreeBuffer;
MCI_BUFFER_PARMS BufferParms; // Sound buffer parameters
MCI_MIX_BUFFER *pMixBuffers; // Sound buffers
MCI_MIXSETUP_PARMS MixSetupParms; // Mixer setup parameters
HEV hevAudioBufferPlayed; // Event semaphore to indicate that an audio buffer has been played by DART
};
#endif /* _SDL_lowaudio_h */

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alienblaster/project/sdl/sdl-1.2/src/audio/dc/SDL_dcaudio.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Output dreamcast aica */
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_dcaudio.h"
#include "aica.h"
#include <dc/spu.h>
/* Audio driver functions */
static int DCAUD_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void DCAUD_WaitAudio(_THIS);
static void DCAUD_PlayAudio(_THIS);
static Uint8 *DCAUD_GetAudioBuf(_THIS);
static void DCAUD_CloseAudio(_THIS);
/* Audio driver bootstrap functions */
static int DCAUD_Available(void)
{
return 1;
}
static void DCAUD_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_AudioDevice *DCAUD_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this ) {
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
SDL_free(this);
}
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Set the function pointers */
this->OpenAudio = DCAUD_OpenAudio;
this->WaitAudio = DCAUD_WaitAudio;
this->PlayAudio = DCAUD_PlayAudio;
this->GetAudioBuf = DCAUD_GetAudioBuf;
this->CloseAudio = DCAUD_CloseAudio;
this->free = DCAUD_DeleteDevice;
spu_init();
return this;
}
AudioBootStrap DCAUD_bootstrap = {
"dcaudio", "Dreamcast AICA audio",
DCAUD_Available, DCAUD_CreateDevice
};
/* This function waits until it is possible to write a full sound buffer */
static void DCAUD_WaitAudio(_THIS)
{
if (this->hidden->playing) {
/* wait */
while(aica_get_pos(0)/this->spec.samples == this->hidden->nextbuf) {
thd_pass();
}
}
}
#define SPU_RAM_BASE 0xa0800000
static void spu_memload_stereo8(int leftpos,int rightpos,void *src0,size_t size)
{
uint8 *src = src0;
uint32 *left = (uint32*)(leftpos +SPU_RAM_BASE);
uint32 *right = (uint32*)(rightpos+SPU_RAM_BASE);
size = (size+7)/8;
while(size--) {
unsigned lval,rval;
lval = *src++;
rval = *src++;
lval|= (*src++)<<8;
rval|= (*src++)<<8;
lval|= (*src++)<<16;
rval|= (*src++)<<16;
lval|= (*src++)<<24;
rval|= (*src++)<<24;
g2_write_32(left++,lval);
g2_write_32(right++,rval);
g2_fifo_wait();
}
}
static void spu_memload_stereo16(int leftpos,int rightpos,void *src0,size_t size)
{
uint16 *src = src0;
uint32 *left = (uint32*)(leftpos +SPU_RAM_BASE);
uint32 *right = (uint32*)(rightpos+SPU_RAM_BASE);
size = (size+7)/8;
while(size--) {
unsigned lval,rval;
lval = *src++;
rval = *src++;
lval|= (*src++)<<16;
rval|= (*src++)<<16;
g2_write_32(left++,lval);
g2_write_32(right++,rval);
g2_fifo_wait();
}
}
static void DCAUD_PlayAudio(_THIS)
{
SDL_AudioSpec *spec = &this->spec;
unsigned int offset;
if (this->hidden->playing) {
/* wait */
while(aica_get_pos(0)/spec->samples == this->hidden->nextbuf) {
thd_pass();
}
}
offset = this->hidden->nextbuf*spec->size;
this->hidden->nextbuf^=1;
/* Write the audio data, checking for EAGAIN on broken audio drivers */
if (spec->channels==1) {
spu_memload(this->hidden->leftpos+offset,this->hidden->mixbuf,this->hidden->mixlen);
} else {
offset/=2;
if ((this->spec.format&255)==8) {
spu_memload_stereo8(this->hidden->leftpos+offset,this->hidden->rightpos+offset,this->hidden->mixbuf,this->hidden->mixlen);
} else {
spu_memload_stereo16(this->hidden->leftpos+offset,this->hidden->rightpos+offset,this->hidden->mixbuf,this->hidden->mixlen);
}
}
if (!this->hidden->playing) {
int mode;
this->hidden->playing = 1;
mode = (spec->format==AUDIO_S8)?SM_8BIT:SM_16BIT;
if (spec->channels==1) {
aica_play(0,mode,this->hidden->leftpos,0,spec->samples*2,spec->freq,255,128,1);
} else {
aica_play(0,mode,this->hidden->leftpos ,0,spec->samples*2,spec->freq,255,0,1);
aica_play(1,mode,this->hidden->rightpos,0,spec->samples*2,spec->freq,255,255,1);
}
}
}
static Uint8 *DCAUD_GetAudioBuf(_THIS)
{
return(this->hidden->mixbuf);
}
static void DCAUD_CloseAudio(_THIS)
{
aica_stop(0);
if (this->spec.channels==2) aica_stop(1);
if ( this->hidden->mixbuf != NULL ) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
}
static int DCAUD_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
Uint16 test_format = SDL_FirstAudioFormat(spec->format);
int valid_datatype = 0;
while ((!valid_datatype) && (test_format)) {
spec->format = test_format;
switch (test_format) {
/* only formats Dreamcast accepts... */
case AUDIO_S8:
case AUDIO_S16LSB:
valid_datatype = 1;
break;
default:
test_format = SDL_NextAudioFormat();
break;
}
}
if (!valid_datatype) { /* shouldn't happen, but just in case... */
SDL_SetError("Unsupported audio format");
return (-1);
}
if (spec->channels > 2)
spec->channels = 2; /* no more than stereo on the Dreamcast. */
/* Update the fragment size as size in bytes */
SDL_CalculateAudioSpec(spec);
/* Allocate mixing buffer */
this->hidden->mixlen = spec->size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if ( this->hidden->mixbuf == NULL ) {
return(-1);
}
SDL_memset(this->hidden->mixbuf, spec->silence, spec->size);
this->hidden->leftpos = 0x11000;
this->hidden->rightpos = 0x11000+spec->size;
this->hidden->playing = 0;
this->hidden->nextbuf = 0;
/* We're ready to rock and roll. :-) */
return(0);
}

41
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_dcaudio_h
#define _SDL_dcaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The file descriptor for the audio device */
Uint8 *mixbuf;
Uint32 mixlen;
int playing;
int leftpos,rightpos;
int nextbuf;
};
#endif /* _SDL_dcaudio_h */

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/* This file is part of the Dreamcast function library.
* Please see libdream.c for further details.
*
* (c)2000 Dan Potter
* modify BERO
*/
#include "aica.h"
#include <arch/irq.h>
#include <dc/spu.h>
/* #define dc_snd_base ((volatile unsigned char *)0x00800000) */ /* arm side */
#define dc_snd_base ((volatile unsigned char *)0xa0700000) /* dc side */
/* Some convienence macros */
#define SNDREGADDR(x) (0xa0700000 + (x))
#define CHNREGADDR(ch,x) SNDREGADDR(0x80*(ch)+(x))
#define SNDREG32(x) (*(volatile unsigned long *)SNDREGADDR(x))
#define SNDREG8(x) (*(volatile unsigned char *)SNDREGADDR(x))
#define CHNREG32(ch, x) (*(volatile unsigned long *)CHNREGADDR(ch,x))
#define CHNREG8(ch, x) (*(volatile unsigned long *)CHNREGADDR(ch,x))
#define G2_LOCK(OLD) \
do { \
if (!irq_inside_int()) \
OLD = irq_disable(); \
/* suspend any G2 DMA here... */ \
while((*(volatile unsigned int *)0xa05f688c) & 0x20) \
; \
} while(0)
#define G2_UNLOCK(OLD) \
do { \
/* resume any G2 DMA here... */ \
if (!irq_inside_int()) \
irq_restore(OLD); \
} while(0)
void aica_init() {
int i, j, old = 0;
/* Initialize AICA channels */
G2_LOCK(old);
SNDREG32(0x2800) = 0x0000;
for (i=0; i<64; i++) {
for (j=0; j<0x80; j+=4) {
if ((j&31)==0) g2_fifo_wait();
CHNREG32(i, j) = 0;
}
g2_fifo_wait();
CHNREG32(i,0) = 0x8000;
CHNREG32(i,20) = 0x1f;
}
SNDREG32(0x2800) = 0x000f;
g2_fifo_wait();
G2_UNLOCK(old);
}
/* Translates a volume from linear form to logarithmic form (required by
the AICA chip */
/* int logs[] = {
0, 40, 50, 58, 63, 68, 73, 77, 80, 83, 86, 89, 92, 94, 97, 99, 101, 103,
105, 107, 109, 111, 112, 114, 116, 117, 119, 120, 122, 123, 125, 126, 127,
129, 130, 131, 133, 134, 135, 136, 137, 139, 140, 141, 142, 143, 144, 145,
146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 156, 157, 158, 159,
160, 161, 162, 162, 163, 164, 165, 166, 166, 167, 168, 169, 170, 170, 171,
172, 172, 173, 174, 175, 175, 176, 177, 177, 178, 179, 180, 180, 181, 182,
182, 183, 183, 184, 185, 185, 186, 187, 187, 188, 188, 189, 190, 190, 191,
191, 192, 193, 193, 194, 194, 195, 196, 196, 197, 197, 198, 198, 199, 199,
200, 201, 201, 202, 202, 203, 203, 204, 204, 205, 205, 206, 206, 207, 207,
208, 208, 209, 209, 210, 210, 211, 211, 212, 212, 213, 213, 214, 214, 215,
215, 216, 216, 217, 217, 217, 218, 218, 219, 219, 220, 220, 221, 221, 222,
222, 222, 223, 223, 224, 224, 225, 225, 225, 226, 226, 227, 227, 228, 228,
228, 229, 229, 230, 230, 230, 231, 231, 232, 232, 232, 233, 233, 234, 234,
234, 235, 235, 236, 236, 236, 237, 237, 238, 238, 238, 239, 239, 240, 240,
240, 241, 241, 241, 242, 242, 243, 243, 243, 244, 244, 244, 245, 245, 245,
246, 246, 247, 247, 247, 248, 248, 248, 249, 249, 249, 250, 250, 250, 251,
251, 251, 252, 252, 252, 253, 253, 253, 254, 254, 254, 255
}; */
const static unsigned char logs[] = {
0, 15, 22, 27, 31, 35, 39, 42, 45, 47, 50, 52, 55, 57, 59, 61,
63, 65, 67, 69, 71, 73, 74, 76, 78, 79, 81, 82, 84, 85, 87, 88,
90, 91, 92, 94, 95, 96, 98, 99, 100, 102, 103, 104, 105, 106,
108, 109, 110, 111, 112, 113, 114, 116, 117, 118, 119, 120, 121,
122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134,
135, 136, 137, 138, 138, 139, 140, 141, 142, 143, 144, 145, 146,
146, 147, 148, 149, 150, 151, 152, 152, 153, 154, 155, 156, 156,
157, 158, 159, 160, 160, 161, 162, 163, 164, 164, 165, 166, 167,
167, 168, 169, 170, 170, 171, 172, 173, 173, 174, 175, 176, 176,
177, 178, 178, 179, 180, 181, 181, 182, 183, 183, 184, 185, 185,
186, 187, 187, 188, 189, 189, 190, 191, 191, 192, 193, 193, 194,
195, 195, 196, 197, 197, 198, 199, 199, 200, 200, 201, 202, 202,
203, 204, 204, 205, 205, 206, 207, 207, 208, 209, 209, 210, 210,
211, 212, 212, 213, 213, 214, 215, 215, 216, 216, 217, 217, 218,
219, 219, 220, 220, 221, 221, 222, 223, 223, 224, 224, 225, 225,
226, 227, 227, 228, 228, 229, 229, 230, 230, 231, 232, 232, 233,
233, 234, 234, 235, 235, 236, 236, 237, 237, 238, 239, 239, 240,
240, 241, 241, 242, 242, 243, 243, 244, 244, 245, 245, 246, 246,
247, 247, 248, 248, 249, 249, 250, 250, 251, 251, 252, 252, 253, 254, 255
};
/* For the moment this is going to have to suffice, until we really
figure out what these mean. */
#define AICA_PAN(x) ((x)==0x80?(0):((x)<0x80?(0x1f):(0x0f)))
#define AICA_VOL(x) (0xff - logs[128 + (((x) & 0xff) / 2)])
//#define AICA_VOL(x) (0xff - logs[x&255])
static inline unsigned AICA_FREQ(unsigned freq) {
unsigned long freq_lo, freq_base = 5644800;
int freq_hi = 7;
/* Need to convert frequency to floating point format
(freq_hi is exponent, freq_lo is mantissa)
Formula is ferq = 44100*2^freq_hi*(1+freq_lo/1024) */
while (freq < freq_base && freq_hi > -8) {
freq_base >>= 1;
--freq_hi;
}
while (freq < freq_base && freq_hi > -8) {
freq_base >>= 1;
freq_hi--;
}
freq_lo = (freq<<10) / freq_base;
return (freq_hi << 11) | (freq_lo & 1023);
}
/* Sets up a sound channel completely. This is generally good if you want
a quick and dirty way to play notes. If you want a more comprehensive
set of routines (more like PC wavetable cards) see below.
ch is the channel to play on (0 - 63)
smpptr is the pointer to the sound data; if you're running off the
SH4, then this ought to be (ptr - 0xa0800000); otherwise it's just
ptr. Basically, it's an offset into sound ram.
mode is one of the mode constants (16 bit, 8 bit, ADPCM)
nsamp is the number of samples to play (not number of bytes!)
freq is the sampling rate of the sound
vol is the volume, 0 to 0xff (0xff is louder)
pan is a panning constant -- 0 is left, 128 is center, 255 is right.
This routine (and the similar ones) owe a lot to Marcus' sound example --
I hadn't gotten quite this far into dissecting the individual regs yet. */
void aica_play(int ch,int mode,unsigned long smpptr,int loopst,int loopend,int freq,int vol,int pan,int loopflag) {
/* int i;
*/
int val;
int old = 0;
/* Stop the channel (if it's already playing) */
aica_stop(ch);
/* doesn't seem to be needed, but it's here just in case */
/*
for (i=0; i<256; i++) {
asm("nop");
asm("nop");
asm("nop");
asm("nop");
}
*/
G2_LOCK(old);
/* Envelope setup. The first of these is the loop point,
e.g., where the sample starts over when it loops. The second
is the loop end. This is the full length of the sample when
you are not looping, or the loop end point when you are (though
storing more than that is a waste of memory if you're not doing
volume enveloping). */
CHNREG32(ch, 8) = loopst & 0xffff;
CHNREG32(ch, 12) = loopend & 0xffff;
/* Write resulting values */
CHNREG32(ch, 24) = AICA_FREQ(freq);
/* Set volume, pan, and some other things that we don't know what
they do =) */
CHNREG32(ch, 36) = AICA_PAN(pan) | (0xf<<8);
/* Convert the incoming volume and pan into hardware values */
/* Vol starts at zero so we can ramp */
vol = AICA_VOL(vol);
CHNREG32(ch, 40) = 0x24 | (vol<<8);
/* Convert the incoming volume and pan into hardware values */
/* Vol starts at zero so we can ramp */
/* If we supported volume envelopes (which we don't yet) then
this value would set that up. The top 4 bits determine the
envelope speed. f is the fastest, 1 is the slowest, and 0
seems to be an invalid value and does weird things). The
default (below) sets it into normal mode (play and terminate/loop).
CHNREG32(ch, 16) = 0xf010;
*/
CHNREG32(ch, 16) = 0x1f; /* No volume envelope */
/* Set sample format, buffer address, and looping control. If
0x0200 mask is set on reg 0, the sample loops infinitely. If
it's not set, the sample plays once and terminates. We'll
also set the bits to start playback here. */
CHNREG32(ch, 4) = smpptr & 0xffff;
val = 0xc000 | 0x0000 | (mode<<7) | (smpptr >> 16);
if (loopflag) val|=0x200;
CHNREG32(ch, 0) = val;
G2_UNLOCK(old);
/* Enable playback */
/* CHNREG32(ch, 0) |= 0xc000; */
g2_fifo_wait();
#if 0
for (i=0xff; i>=vol; i--) {
if ((i&7)==0) g2_fifo_wait();
CHNREG32(ch, 40) = 0x24 | (i<<8);;
}
g2_fifo_wait();
#endif
}
/* Stop the sound on a given channel */
void aica_stop(int ch) {
g2_write_32(CHNREGADDR(ch, 0),(g2_read_32(CHNREGADDR(ch, 0)) & ~0x4000) | 0x8000);
g2_fifo_wait();
}
/* The rest of these routines can change the channel in mid-stride so you
can do things like vibrato and panning effects. */
/* Set channel volume */
void aica_vol(int ch,int vol) {
// g2_write_8(CHNREGADDR(ch, 41),AICA_VOL(vol));
g2_write_32(CHNREGADDR(ch, 40),(g2_read_32(CHNREGADDR(ch, 40))&0xffff00ff)|(AICA_VOL(vol)<<8) );
g2_fifo_wait();
}
/* Set channel pan */
void aica_pan(int ch,int pan) {
// g2_write_8(CHNREGADDR(ch, 36),AICA_PAN(pan));
g2_write_32(CHNREGADDR(ch, 36),(g2_read_32(CHNREGADDR(ch, 36))&0xffffff00)|(AICA_PAN(pan)) );
g2_fifo_wait();
}
/* Set channel frequency */
void aica_freq(int ch,int freq) {
g2_write_32(CHNREGADDR(ch, 24),AICA_FREQ(freq));
g2_fifo_wait();
}
/* Get channel position */
int aica_get_pos(int ch) {
#if 1
/* Observe channel ch */
g2_write_32(SNDREGADDR(0x280c),(g2_read_32(SNDREGADDR(0x280c))&0xffff00ff) | (ch<<8));
g2_fifo_wait();
/* Update position counters */
return g2_read_32(SNDREGADDR(0x2814)) & 0xffff;
#else
/* Observe channel ch */
g2_write_8(SNDREGADDR(0x280d),ch);
/* Update position counters */
return g2_read_32(SNDREGADDR(0x2814)) & 0xffff;
#endif
}

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _AICA_H_
#define _AICA_H_
#define AICA_MEM 0xa0800000
#define SM_8BIT 1
#define SM_16BIT 0
#define SM_ADPCM 2
void aica_play(int ch,int mode,unsigned long smpptr,int looptst,int loopend,int freq,int vol,int pan,int loopflag);
void aica_stop(int ch);
void aica_vol(int ch,int vol);
void aica_pan(int ch,int pan);
void aica_freq(int ch,int freq);
int aica_get_pos(int ch);
#endif

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
This file written by Ryan C. Gordon (icculus@icculus.org)
*/
#include "SDL_config.h"
/* Output raw audio data to a file. */
#if HAVE_STDIO_H
#include <stdio.h>
#endif
#include "SDL_rwops.h"
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_diskaudio.h"
/* The tag name used by DISK audio */
#define DISKAUD_DRIVER_NAME "disk"
/* environment variables and defaults. */
#define DISKENVR_OUTFILE "SDL_DISKAUDIOFILE"
#define DISKDEFAULT_OUTFILE "sdlaudio.raw"
#define DISKENVR_WRITEDELAY "SDL_DISKAUDIODELAY"
#define DISKDEFAULT_WRITEDELAY 150
/* Audio driver functions */
static int DISKAUD_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void DISKAUD_WaitAudio(_THIS);
static void DISKAUD_PlayAudio(_THIS);
static Uint8 *DISKAUD_GetAudioBuf(_THIS);
static void DISKAUD_CloseAudio(_THIS);
static const char *DISKAUD_GetOutputFilename(void)
{
const char *envr = SDL_getenv(DISKENVR_OUTFILE);
return((envr != NULL) ? envr : DISKDEFAULT_OUTFILE);
}
/* Audio driver bootstrap functions */
static int DISKAUD_Available(void)
{
const char *envr = SDL_getenv("SDL_AUDIODRIVER");
if (envr && (SDL_strcmp(envr, DISKAUD_DRIVER_NAME) == 0)) {
return(1);
}
return(0);
}
static void DISKAUD_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_AudioDevice *DISKAUD_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
const char *envr;
/* Initialize all variables that we clean on shutdown */
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this ) {
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
SDL_free(this);
}
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
envr = SDL_getenv(DISKENVR_WRITEDELAY);
this->hidden->write_delay = (envr) ? SDL_atoi(envr) : DISKDEFAULT_WRITEDELAY;
/* Set the function pointers */
this->OpenAudio = DISKAUD_OpenAudio;
this->WaitAudio = DISKAUD_WaitAudio;
this->PlayAudio = DISKAUD_PlayAudio;
this->GetAudioBuf = DISKAUD_GetAudioBuf;
this->CloseAudio = DISKAUD_CloseAudio;
this->free = DISKAUD_DeleteDevice;
return this;
}
AudioBootStrap DISKAUD_bootstrap = {
DISKAUD_DRIVER_NAME, "direct-to-disk audio",
DISKAUD_Available, DISKAUD_CreateDevice
};
/* This function waits until it is possible to write a full sound buffer */
static void DISKAUD_WaitAudio(_THIS)
{
SDL_Delay(this->hidden->write_delay);
}
static void DISKAUD_PlayAudio(_THIS)
{
int written;
/* Write the audio data */
written = SDL_RWwrite(this->hidden->output,
this->hidden->mixbuf, 1,
this->hidden->mixlen);
/* If we couldn't write, assume fatal error for now */
if ( (Uint32)written != this->hidden->mixlen ) {
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", written);
#endif
}
static Uint8 *DISKAUD_GetAudioBuf(_THIS)
{
return(this->hidden->mixbuf);
}
static void DISKAUD_CloseAudio(_THIS)
{
if ( this->hidden->mixbuf != NULL ) {
SDL_FreeAudioMem(this->hidden->mixbuf);
this->hidden->mixbuf = NULL;
}
if ( this->hidden->output != NULL ) {
SDL_RWclose(this->hidden->output);
this->hidden->output = NULL;
}
}
static int DISKAUD_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
const char *fname = DISKAUD_GetOutputFilename();
/* Open the audio device */
this->hidden->output = SDL_RWFromFile(fname, "wb");
if ( this->hidden->output == NULL ) {
return(-1);
}
#if HAVE_STDIO_H
fprintf(stderr, "WARNING: You are using the SDL disk writer"
" audio driver!\n Writing to file [%s].\n", fname);
#endif
/* Allocate mixing buffer */
this->hidden->mixlen = spec->size;
this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
if ( this->hidden->mixbuf == NULL ) {
return(-1);
}
SDL_memset(this->hidden->mixbuf, spec->silence, spec->size);
/* We're ready to rock and roll. :-) */
return(0);
}

41
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_diskaudio_h
#define _SDL_diskaudio_h
#include "SDL_rwops.h"
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The file descriptor for the audio device */
SDL_RWops *output;
Uint8 *mixbuf;
Uint32 mixlen;
Uint32 write_delay;
};
#endif /* _SDL_diskaudio_h */

455
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include <stdio.h>
#include <string.h> /* For strerror() */
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/mman.h>
#if SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H
/* This is installed on some systems */
#include <soundcard.h>
#else
/* This is recommended by OSS */
#include <sys/soundcard.h>
#endif
#ifndef MAP_FAILED
#define MAP_FAILED ((Uint8 *)-1)
#endif
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_dmaaudio.h"
/* The tag name used by DMA audio */
#define DMA_DRIVER_NAME "dma"
/* Open the audio device for playback, and don't block if busy */
#define OPEN_FLAGS (O_RDWR|O_NONBLOCK)
/* Audio driver functions */
static int DMA_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void DMA_WaitAudio(_THIS);
static void DMA_PlayAudio(_THIS);
static Uint8 *DMA_GetAudioBuf(_THIS);
static void DMA_CloseAudio(_THIS);
/* Audio driver bootstrap functions */
static int Audio_Available(void)
{
int available;
int fd;
available = 0;
fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 0);
if ( fd >= 0 ) {
int caps;
struct audio_buf_info info;
if ( (ioctl(fd, SNDCTL_DSP_GETCAPS, &caps) == 0) &&
(caps & DSP_CAP_TRIGGER) && (caps & DSP_CAP_MMAP) &&
(ioctl(fd, SNDCTL_DSP_GETOSPACE, &info) == 0) ) {
available = 1;
}
close(fd);
}
return(available);
}
static void Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this ) {
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
SDL_free(this);
}
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
audio_fd = -1;
/* Set the function pointers */
this->OpenAudio = DMA_OpenAudio;
this->WaitAudio = DMA_WaitAudio;
this->PlayAudio = DMA_PlayAudio;
this->GetAudioBuf = DMA_GetAudioBuf;
this->CloseAudio = DMA_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap DMA_bootstrap = {
DMA_DRIVER_NAME, "OSS /dev/dsp DMA audio",
Audio_Available, Audio_CreateDevice
};
/* This function waits until it is possible to write a full sound buffer */
static void DMA_WaitAudio(_THIS)
{
fd_set fdset;
/* Check to see if the thread-parent process is still alive */
{ static int cnt = 0;
/* Note that this only works with thread implementations
that use a different process id for each thread.
*/
if (parent && (((++cnt)%10) == 0)) { /* Check every 10 loops */
if ( kill(parent, 0) < 0 ) {
this->enabled = 0;
}
}
}
/* See if we need to use timed audio synchronization */
if ( frame_ticks ) {
/* Use timer for general audio synchronization */
Sint32 ticks;
ticks = ((Sint32)(next_frame - SDL_GetTicks()))-FUDGE_TICKS;
if ( ticks > 0 ) {
SDL_Delay(ticks);
}
} else {
/* Use select() for audio synchronization */
struct timeval timeout;
FD_ZERO(&fdset);
FD_SET(audio_fd, &fdset);
timeout.tv_sec = 10;
timeout.tv_usec = 0;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Waiting for audio to get ready\n");
#endif
if ( select(audio_fd+1, NULL, &fdset, NULL, &timeout) <= 0 ) {
const char *message =
#ifdef AUDIO_OSPACE_HACK
"Audio timeout - buggy audio driver? (trying ospace)";
#else
"Audio timeout - buggy audio driver? (disabled)";
#endif
/* In general we should never print to the screen,
but in this case we have no other way of letting
the user know what happened.
*/
fprintf(stderr, "SDL: %s\n", message);
#ifdef AUDIO_OSPACE_HACK
/* We may be able to use GET_OSPACE trick */
frame_ticks = (float)(this->spec->samples*1000) /
this->spec->freq;
next_frame = SDL_GetTicks()+frame_ticks;
#else
this->enabled = 0;
/* Don't try to close - may hang */
audio_fd = -1;
#ifdef DEBUG_AUDIO
fprintf(stderr, "Done disabling audio\n");
#endif
#endif /* AUDIO_OSPACE_HACK */
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Ready!\n");
#endif
}
}
static void DMA_PlayAudio(_THIS)
{
/* If timer synchronization is enabled, set the next write frame */
if ( frame_ticks ) {
next_frame += frame_ticks;
}
return;
}
static Uint8 *DMA_GetAudioBuf(_THIS)
{
count_info info;
int playing;
int filling;
/* Get number of blocks, looping if we're not using select() */
do {
if ( ioctl(audio_fd, SNDCTL_DSP_GETOPTR, &info) < 0 ) {
/* Uh oh... */
this->enabled = 0;
return(NULL);
}
} while ( frame_ticks && (info.blocks < 1) );
#ifdef DEBUG_AUDIO
if ( info.blocks > 1 ) {
printf("Warning: audio underflow (%d frags)\n", info.blocks-1);
}
#endif
playing = info.ptr / this->spec.size;
filling = (playing + 1)%num_buffers;
return (dma_buf + (filling * this->spec.size));
}
static void DMA_CloseAudio(_THIS)
{
if ( dma_buf != NULL ) {
munmap(dma_buf, dma_len);
dma_buf = NULL;
}
if ( audio_fd >= 0 ) {
close(audio_fd);
audio_fd = -1;
}
}
static int DMA_ReopenAudio(_THIS, const char *audiodev, int format, int stereo,
SDL_AudioSpec *spec)
{
int frag_spec;
int value;
/* Close and then reopen the audio device */
close(audio_fd);
audio_fd = open(audiodev, O_RDWR, 0);
if ( audio_fd < 0 ) {
SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
return(-1);
}
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(spec);
/* Determine the power of two of the fragment size */
for ( frag_spec = 0; (0x01<<frag_spec) < spec->size; ++frag_spec );
if ( (0x01<<frag_spec) != spec->size ) {
SDL_SetError("Fragment size must be a power of two");
return(-1);
}
/* Set the audio buffering parameters */
if ( ioctl(audio_fd, SNDCTL_DSP_SETFRAGMENT, &frag_spec) < 0 ) {
SDL_SetError("Couldn't set audio fragment spec");
return(-1);
}
/* Set the audio format */
value = format;
if ( (ioctl(audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) ||
(value != format) ) {
SDL_SetError("Couldn't set audio format");
return(-1);
}
/* Set mono or stereo audio */
value = (spec->channels > 1);
if ( (ioctl(audio_fd, SNDCTL_DSP_STEREO, &stereo) < 0) ||
(value != stereo) ) {
SDL_SetError("Couldn't set audio channels");
return(-1);
}
/* Set the DSP frequency */
value = spec->freq;
if ( ioctl(audio_fd, SNDCTL_DSP_SPEED, &value) < 0 ) {
SDL_SetError("Couldn't set audio frequency");
return(-1);
}
spec->freq = value;
/* We successfully re-opened the audio */
return(0);
}
static int DMA_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
char audiodev[1024];
int format;
int stereo;
int value;
Uint16 test_format;
struct audio_buf_info info;
/* Reset the timer synchronization flag */
frame_ticks = 0.0;
/* Open the audio device */
audio_fd = SDL_OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 0);
if ( audio_fd < 0 ) {
SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
return(-1);
}
dma_buf = NULL;
ioctl(audio_fd, SNDCTL_DSP_RESET, 0);
/* Get a list of supported hardware formats */
if ( ioctl(audio_fd, SNDCTL_DSP_GETFMTS, &value) < 0 ) {
SDL_SetError("Couldn't get audio format list");
return(-1);
}
/* Try for a closest match on audio format */
format = 0;
for ( test_format = SDL_FirstAudioFormat(spec->format);
! format && test_format; ) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
switch ( test_format ) {
case AUDIO_U8:
if ( value & AFMT_U8 ) {
format = AFMT_U8;
}
break;
case AUDIO_S8:
if ( value & AFMT_S8 ) {
format = AFMT_S8;
}
break;
case AUDIO_S16LSB:
if ( value & AFMT_S16_LE ) {
format = AFMT_S16_LE;
}
break;
case AUDIO_S16MSB:
if ( value & AFMT_S16_BE ) {
format = AFMT_S16_BE;
}
break;
case AUDIO_U16LSB:
if ( value & AFMT_U16_LE ) {
format = AFMT_U16_LE;
}
break;
case AUDIO_U16MSB:
if ( value & AFMT_U16_BE ) {
format = AFMT_U16_BE;
}
break;
default:
format = 0;
break;
}
if ( ! format ) {
test_format = SDL_NextAudioFormat();
}
}
if ( format == 0 ) {
SDL_SetError("Couldn't find any hardware audio formats");
return(-1);
}
spec->format = test_format;
/* Set the audio format */
value = format;
if ( (ioctl(audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) ||
(value != format) ) {
SDL_SetError("Couldn't set audio format");
return(-1);
}
/* Set mono or stereo audio (currently only two channels supported) */
stereo = (spec->channels > 1);
ioctl(audio_fd, SNDCTL_DSP_STEREO, &stereo);
if ( stereo ) {
spec->channels = 2;
} else {
spec->channels = 1;
}
/* Because some drivers don't allow setting the buffer size
after setting the format, we must re-open the audio device
once we know what format and channels are supported
*/
if ( DMA_ReopenAudio(this, audiodev, format, stereo, spec) < 0 ) {
/* Error is set by DMA_ReopenAudio() */
return(-1);
}
/* Memory map the audio buffer */
if ( ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info) < 0 ) {
SDL_SetError("Couldn't get OSPACE parameters");
return(-1);
}
spec->size = info.fragsize;
spec->samples = spec->size / ((spec->format & 0xFF) / 8);
spec->samples /= spec->channels;
num_buffers = info.fragstotal;
dma_len = num_buffers*spec->size;
dma_buf = (Uint8 *)mmap(NULL, dma_len, PROT_WRITE, MAP_SHARED,
audio_fd, 0);
if ( dma_buf == MAP_FAILED ) {
SDL_SetError("DMA memory map failed");
dma_buf = NULL;
return(-1);
}
SDL_memset(dma_buf, spec->silence, dma_len);
/* Check to see if we need to use select() workaround */
{ char *workaround;
workaround = SDL_getenv("SDL_DSP_NOSELECT");
if ( workaround ) {
frame_ticks = (float)(spec->samples*1000)/spec->freq;
next_frame = SDL_GetTicks()+frame_ticks;
}
}
/* Trigger audio playback */
value = 0;
ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &value);
value = PCM_ENABLE_OUTPUT;
if ( ioctl(audio_fd, SNDCTL_DSP_SETTRIGGER, &value) < 0 ) {
SDL_SetError("Couldn't trigger audio output");
return(-1);
}
/* Get the parent process id (we're the parent of the audio thread) */
parent = getpid();
/* We're ready to rock and roll. :-) */
return(0);
}

59
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_dspaudio_h
#define _SDL_dspaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The file descriptor for the audio device */
int audio_fd;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *dma_buf;
int dma_len;
int num_buffers;
/* Support for audio timing using a timer, in addition to select() */
float frame_ticks;
float next_frame;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
/* Old variable names */
#define audio_fd (this->hidden->audio_fd)
#define parent (this->hidden->parent)
#define dma_buf (this->hidden->dma_buf)
#define dma_len (this->hidden->dma_len)
#define num_buffers (this->hidden->num_buffers)
#define frame_ticks (this->hidden->frame_ticks)
#define next_frame (this->hidden->next_frame)
#endif /* _SDL_dspaudio_h */

242
alienblaster/project/sdl/sdl-1.2/src/audio/dmedia/SDL_irixaudio.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer (For IRIX 6.5 and higher) */
/* patch for IRIX 5 by Georg Schwarz 18/07/2004 */
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "SDL_irixaudio.h"
#ifndef AL_RESOURCE /* as a test whether we use the old IRIX audio libraries */
#define OLD_IRIX_AUDIO
#define alClosePort(x) ALcloseport(x)
#define alFreeConfig(x) ALfreeconfig(x)
#define alGetFillable(x) ALgetfillable(x)
#define alNewConfig() ALnewconfig()
#define alOpenPort(x,y,z) ALopenport(x,y,z)
#define alSetChannels(x,y) ALsetchannels(x,y)
#define alSetQueueSize(x,y) ALsetqueuesize(x,y)
#define alSetSampFmt(x,y) ALsetsampfmt(x,y)
#define alSetWidth(x,y) ALsetwidth(x,y)
#endif
/* Audio driver functions */
static int AL_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void AL_WaitAudio(_THIS);
static void AL_PlayAudio(_THIS);
static Uint8 *AL_GetAudioBuf(_THIS);
static void AL_CloseAudio(_THIS);
/* Audio driver bootstrap functions */
static int Audio_Available(void)
{
return 1;
}
static void Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this ) {
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
SDL_free(this);
}
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
/* Set the function pointers */
this->OpenAudio = AL_OpenAudio;
this->WaitAudio = AL_WaitAudio;
this->PlayAudio = AL_PlayAudio;
this->GetAudioBuf = AL_GetAudioBuf;
this->CloseAudio = AL_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap DMEDIA_bootstrap = {
"AL", "IRIX DMedia audio",
Audio_Available, Audio_CreateDevice
};
void static AL_WaitAudio(_THIS)
{
Sint32 timeleft;
timeleft = this->spec.samples - alGetFillable(audio_port);
if ( timeleft > 0 ) {
timeleft /= (this->spec.freq/1000);
SDL_Delay((Uint32)timeleft);
}
}
static void AL_PlayAudio(_THIS)
{
/* Write the audio data out */
if ( alWriteFrames(audio_port, mixbuf, this->spec.samples) < 0 ) {
/* Assume fatal error, for now */
this->enabled = 0;
}
}
static Uint8 *AL_GetAudioBuf(_THIS)
{
return(mixbuf);
}
static void AL_CloseAudio(_THIS)
{
if ( mixbuf != NULL ) {
SDL_FreeAudioMem(mixbuf);
mixbuf = NULL;
}
if ( audio_port != NULL ) {
alClosePort(audio_port);
audio_port = NULL;
}
}
static int AL_OpenAudio(_THIS, SDL_AudioSpec * spec)
{
Uint16 test_format = SDL_FirstAudioFormat(spec->format);
long width = 0;
long fmt = 0;
int valid = 0;
#ifdef OLD_IRIX_AUDIO
{
long audio_param[2];
audio_param[0] = AL_OUTPUT_RATE;
audio_param[1] = spec->freq;
valid = (ALsetparams(AL_DEFAULT_DEVICE, audio_param, 2) < 0);
}
#else
{
ALpv audio_param;
audio_param.param = AL_RATE;
audio_param.value.i = spec->freq;
valid = (alSetParams(AL_DEFAULT_OUTPUT, &audio_param, 1) < 0);
}
#endif
while ((!valid) && (test_format)) {
valid = 1;
spec->format = test_format;
switch (test_format) {
case AUDIO_S8:
width = AL_SAMPLE_8;
fmt = AL_SAMPFMT_TWOSCOMP;
break;
case AUDIO_S16SYS:
width = AL_SAMPLE_16;
fmt = AL_SAMPFMT_TWOSCOMP;
break;
default:
valid = 0;
test_format = SDL_NextAudioFormat();
break;
}
if (valid) {
ALconfig audio_config = alNewConfig();
valid = 0;
if (audio_config) {
if (alSetChannels(audio_config, spec->channels) < 0) {
if (spec->channels > 2) { /* can't handle > stereo? */
spec->channels = 2; /* try again below. */
}
}
if ((alSetSampFmt(audio_config, fmt) >= 0) &&
((!width) || (alSetWidth(audio_config, width) >= 0)) &&
(alSetQueueSize(audio_config, spec->samples * 2) >= 0) &&
(alSetChannels(audio_config, spec->channels) >= 0)) {
audio_port = alOpenPort("SDL audio", "w", audio_config);
if (audio_port == NULL) {
/* docs say AL_BAD_CHANNELS happens here, too. */
int err = oserror();
if (err == AL_BAD_CHANNELS) {
spec->channels = 2;
alSetChannels(audio_config, spec->channels);
audio_port = alOpenPort("SDL audio", "w",
audio_config);
}
}
if (audio_port != NULL) {
valid = 1;
}
}
alFreeConfig(audio_config);
}
}
}
if (!valid) {
SDL_SetError("Unsupported audio format");
return (-1);
}
/* Update the fragment size as size in bytes */
SDL_CalculateAudioSpec(spec);
/* Allocate mixing buffer */
mixbuf = (Uint8 *) SDL_AllocAudioMem(spec->size);
if (mixbuf == NULL) {
SDL_OutOfMemory();
return (-1);
}
SDL_memset(mixbuf, spec->silence, spec->size);
/* We're ready to rock and roll. :-) */
return (0);
}

45
alienblaster/project/sdl/sdl-1.2/src/audio/dmedia/SDL_irixaudio.h Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_lowaudio_h
#define _SDL_lowaudio_h
#include <dmedia/audio.h>
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the audio functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The handle for the audio device */
ALport audio_port;
Uint8 *mixbuf; /* The app mixing buffer */
};
/* Old variable names */
#define audio_port (this->hidden->audio_port)
#define mixbuf (this->hidden->mixbuf)
#endif /* _SDL_lowaudio_h */

340
alienblaster/project/sdl/sdl-1.2/src/audio/dsp/SDL_dspaudio.c Normal file
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
Modified in Oct 2004 by Hannu Savolainen
hannu@opensound.com
*/
#include "SDL_config.h"
/* Allow access to a raw mixing buffer */
#include <stdio.h> /* For perror() */
#include <string.h> /* For strerror() */
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#if SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H
/* This is installed on some systems */
#include <soundcard.h>
#else
/* This is recommended by OSS */
#include <sys/soundcard.h>
#endif
#include "SDL_timer.h"
#include "SDL_audio.h"
#include "../SDL_audiomem.h"
#include "../SDL_audio_c.h"
#include "../SDL_audiodev_c.h"
#include "SDL_dspaudio.h"
/* The tag name used by DSP audio */
#define DSP_DRIVER_NAME "dsp"
/* Open the audio device for playback, and don't block if busy */
#define OPEN_FLAGS (O_WRONLY|O_NONBLOCK)
/* Audio driver functions */
static int DSP_OpenAudio(_THIS, SDL_AudioSpec *spec);
static void DSP_WaitAudio(_THIS);
static void DSP_PlayAudio(_THIS);
static Uint8 *DSP_GetAudioBuf(_THIS);
static void DSP_CloseAudio(_THIS);
/* Audio driver bootstrap functions */
static int Audio_Available(void)
{
int fd;
int available;
available = 0;
fd = SDL_OpenAudioPath(NULL, 0, OPEN_FLAGS, 0);
if ( fd >= 0 ) {
available = 1;
close(fd);
}
return(available);
}
static void Audio_DeleteDevice(SDL_AudioDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_AudioDevice *Audio_CreateDevice(int devindex)
{
SDL_AudioDevice *this;
/* Initialize all variables that we clean on shutdown */
this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice));
if ( this ) {
SDL_memset(this, 0, (sizeof *this));
this->hidden = (struct SDL_PrivateAudioData *)
SDL_malloc((sizeof *this->hidden));
}
if ( (this == NULL) || (this->hidden == NULL) ) {
SDL_OutOfMemory();
if ( this ) {
SDL_free(this);
}
return(0);
}
SDL_memset(this->hidden, 0, (sizeof *this->hidden));
audio_fd = -1;
/* Set the function pointers */
this->OpenAudio = DSP_OpenAudio;
this->WaitAudio = DSP_WaitAudio;
this->PlayAudio = DSP_PlayAudio;
this->GetAudioBuf = DSP_GetAudioBuf;
this->CloseAudio = DSP_CloseAudio;
this->free = Audio_DeleteDevice;
return this;
}
AudioBootStrap DSP_bootstrap = {
DSP_DRIVER_NAME, "OSS /dev/dsp standard audio",
Audio_Available, Audio_CreateDevice
};
/* This function waits until it is possible to write a full sound buffer */
static void DSP_WaitAudio(_THIS)
{
/* Not needed at all since OSS handles waiting automagically */
}
static void DSP_PlayAudio(_THIS)
{
if (write(audio_fd, mixbuf, mixlen)==-1)
{
perror("Audio write");
this->enabled = 0;
}
#ifdef DEBUG_AUDIO
fprintf(stderr, "Wrote %d bytes of audio data\n", mixlen);
#endif
}
static Uint8 *DSP_GetAudioBuf(_THIS)
{
return(mixbuf);
}
static void DSP_CloseAudio(_THIS)
{
if ( mixbuf != NULL ) {
SDL_FreeAudioMem(mixbuf);
mixbuf = NULL;
}
if ( audio_fd >= 0 ) {
close(audio_fd);
audio_fd = -1;
}
}
static int DSP_OpenAudio(_THIS, SDL_AudioSpec *spec)
{
char audiodev[1024];
int format;
int value;
int frag_spec;
Uint16 test_format;
/* Make sure fragment size stays a power of 2, or OSS fails. */
/* I don't know which of these are actually legal values, though... */
if (spec->channels > 8)
spec->channels = 8;
else if (spec->channels > 4)
spec->channels = 4;
else if (spec->channels > 2)
spec->channels = 2;
/* Open the audio device */
audio_fd = SDL_OpenAudioPath(audiodev, sizeof(audiodev), OPEN_FLAGS, 0);
if ( audio_fd < 0 ) {
SDL_SetError("Couldn't open %s: %s", audiodev, strerror(errno));
return(-1);
}
mixbuf = NULL;
/* Make the file descriptor use blocking writes with fcntl() */
{ long flags;
flags = fcntl(audio_fd, F_GETFL);
flags &= ~O_NONBLOCK;
if ( fcntl(audio_fd, F_SETFL, flags) < 0 ) {
SDL_SetError("Couldn't set audio blocking mode");
DSP_CloseAudio(this);
return(-1);
}
}
/* Get a list of supported hardware formats */
if ( ioctl(audio_fd, SNDCTL_DSP_GETFMTS, &value) < 0 ) {
perror("SNDCTL_DSP_GETFMTS");
SDL_SetError("Couldn't get audio format list");
DSP_CloseAudio(this);
return(-1);
}
/* Try for a closest match on audio format */
format = 0;
for ( test_format = SDL_FirstAudioFormat(spec->format);
! format && test_format; ) {
#ifdef DEBUG_AUDIO
fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
#endif
switch ( test_format ) {
case AUDIO_U8:
if ( value & AFMT_U8 ) {
format = AFMT_U8;
}
break;
case AUDIO_S16LSB:
if ( value & AFMT_S16_LE ) {
format = AFMT_S16_LE;
}
break;
case AUDIO_S16MSB:
if ( value & AFMT_S16_BE ) {
format = AFMT_S16_BE;
}
break;
#if 0
/*
* These formats are not used by any real life systems so they are not
* needed here.
*/
case AUDIO_S8:
if ( value & AFMT_S8 ) {
format = AFMT_S8;
}
break;
case AUDIO_U16LSB:
if ( value & AFMT_U16_LE ) {
format = AFMT_U16_LE;
}
break;
case AUDIO_U16MSB:
if ( value & AFMT_U16_BE ) {
format = AFMT_U16_BE;
}
break;
#endif
default:
format = 0;
break;
}
if ( ! format ) {
test_format = SDL_NextAudioFormat();
}
}
if ( format == 0 ) {
SDL_SetError("Couldn't find any hardware audio formats");
DSP_CloseAudio(this);
return(-1);
}
spec->format = test_format;
/* Set the audio format */
value = format;
if ( (ioctl(audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) ||
(value != format) ) {
perror("SNDCTL_DSP_SETFMT");
SDL_SetError("Couldn't set audio format");
DSP_CloseAudio(this);
return(-1);
}
/* Set the number of channels of output */
value = spec->channels;
if ( ioctl(audio_fd, SNDCTL_DSP_CHANNELS, &value) < 0 ) {
perror("SNDCTL_DSP_CHANNELS");
SDL_SetError("Cannot set the number of channels");
DSP_CloseAudio(this);
return(-1);
}
spec->channels = value;
/* Set the DSP frequency */
value = spec->freq;
if ( ioctl(audio_fd, SNDCTL_DSP_SPEED, &value) < 0 ) {
perror("SNDCTL_DSP_SPEED");
SDL_SetError("Couldn't set audio frequency");
DSP_CloseAudio(this);
return(-1);
}
spec->freq = value;
/* Calculate the final parameters for this audio specification */
SDL_CalculateAudioSpec(spec);
/* Determine the power of two of the fragment size */
for ( frag_spec = 0; (0x01U<<frag_spec) < spec->size; ++frag_spec );
if ( (0x01U<<frag_spec) != spec->size ) {
SDL_SetError("Fragment size must be a power of two");
DSP_CloseAudio(this);
return(-1);
}
frag_spec |= 0x00020000; /* two fragments, for low latency */
/* Set the audio buffering parameters */
#ifdef DEBUG_AUDIO
fprintf(stderr, "Requesting %d fragments of size %d\n",
(frag_spec >> 16), 1<<(frag_spec&0xFFFF));
#endif
if ( ioctl(audio_fd, SNDCTL_DSP_SETFRAGMENT, &frag_spec) < 0 ) {
perror("SNDCTL_DSP_SETFRAGMENT");
}
#ifdef DEBUG_AUDIO
{ audio_buf_info info;
ioctl(audio_fd, SNDCTL_DSP_GETOSPACE, &info);
fprintf(stderr, "fragments = %d\n", info.fragments);
fprintf(stderr, "fragstotal = %d\n", info.fragstotal);
fprintf(stderr, "fragsize = %d\n", info.fragsize);
fprintf(stderr, "bytes = %d\n", info.bytes);
}
#endif
/* Allocate mixing buffer */
mixlen = spec->size;
mixbuf = (Uint8 *)SDL_AllocAudioMem(mixlen);
if ( mixbuf == NULL ) {
DSP_CloseAudio(this);
return(-1);
}
SDL_memset(mixbuf, spec->silence, spec->size);
/* Get the parent process id (we're the parent of the audio thread) */
parent = getpid();
/* We're ready to rock and roll. :-) */
return(0);
}

53
alienblaster/project/sdl/sdl-1.2/src/audio/dsp/SDL_dspaudio.h Normal file
View File

@@ -0,0 +1,53 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2009 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#ifndef _SDL_dspaudio_h
#define _SDL_dspaudio_h
#include "../SDL_sysaudio.h"
/* Hidden "this" pointer for the video functions */
#define _THIS SDL_AudioDevice *this
struct SDL_PrivateAudioData {
/* The file descriptor for the audio device */
int audio_fd;
/* The parent process id, to detect when application quits */
pid_t parent;
/* Raw mixing buffer */
Uint8 *mixbuf;
int mixlen;
};
#define FUDGE_TICKS 10 /* The scheduler overhead ticks per frame */
/* Old variable names */
#define audio_fd (this->hidden->audio_fd)
#define parent (this->hidden->parent)
#define mixbuf (this->hidden->mixbuf)
#define mixlen (this->hidden->mixlen)
#define frame_ticks (this->hidden->frame_ticks)
#define next_frame (this->hidden->next_frame)
#endif /* _SDL_dspaudio_h */

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