Changed directory structure to contain less symlinks so dependencies will get recalculated correctly by make

This commit is contained in:
pelya
2010-10-12 19:04:21 +03:00
parent a5ff12846e
commit 2e1a4992d3
1349 changed files with 33 additions and 48 deletions

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
/* The system dependent timer handling functions */
#include "SDL_timer.h"
#include "SDL_timer_c.h"
/* Initialize the system dependent timer subsystem */
extern int SDL_SYS_TimerInit(void);
/* Quit the system dependent timer subsystem */
extern void SDL_SYS_TimerQuit(void);
/* Start a timer set up by SDL_SetTimer() */
extern int SDL_SYS_StartTimer(void);
/* Stop a previously started timer */
extern void SDL_SYS_StopTimer(void);
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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_timer.h"
#include "SDL_timer_c.h"
#include "SDL_mutex.h"
#include "SDL_systimer.h"
/* #define DEBUG_TIMERS */
int SDL_timer_started = 0;
int SDL_timer_running = 0;
/* Data to handle a single periodic alarm */
Uint32 SDL_alarm_interval = 0;
SDL_TimerCallback SDL_alarm_callback;
/* Data used for a thread-based timer */
static int SDL_timer_threaded = 0;
struct _SDL_TimerID
{
Uint32 interval;
SDL_NewTimerCallback cb;
void *param;
Uint32 last_alarm;
struct _SDL_TimerID *next;
};
static SDL_TimerID SDL_timers = NULL;
static SDL_mutex *SDL_timer_mutex;
static volatile SDL_bool list_changed = SDL_FALSE;
/* Set whether or not the timer should use a thread.
This should not be called while the timer subsystem is running.
*/
int
SDL_SetTimerThreaded(int value)
{
int retval;
if (SDL_timer_started) {
SDL_SetError("Timer already initialized");
retval = -1;
} else {
retval = 0;
SDL_timer_threaded = value;
}
return retval;
}
int
SDL_TimerInit(void)
{
int retval;
retval = 0;
if (SDL_timer_started) {
SDL_TimerQuit();
}
if (!SDL_timer_threaded) {
retval = SDL_SYS_TimerInit();
}
if (SDL_timer_threaded) {
SDL_timer_mutex = SDL_CreateMutex();
}
if (retval == 0) {
SDL_timer_started = 1;
}
return (retval);
}
void
SDL_TimerQuit(void)
{
SDL_SetTimer(0, NULL);
if (SDL_timer_threaded < 2) {
SDL_SYS_TimerQuit();
}
if (SDL_timer_threaded) {
SDL_DestroyMutex(SDL_timer_mutex);
SDL_timer_mutex = NULL;
}
SDL_timer_started = 0;
SDL_timer_threaded = 0;
}
void
SDL_ThreadedTimerCheck(void)
{
Uint32 now, ms;
SDL_TimerID t, prev, next;
SDL_bool removed;
SDL_mutexP(SDL_timer_mutex);
list_changed = SDL_FALSE;
now = SDL_GetTicks();
for (prev = NULL, t = SDL_timers; t; t = next) {
removed = SDL_FALSE;
ms = t->interval - SDL_TIMESLICE;
next = t->next;
if ((int) (now - t->last_alarm) > (int) ms) {
struct _SDL_TimerID timer;
if ((now - t->last_alarm) < t->interval) {
t->last_alarm += t->interval;
} else {
t->last_alarm = now;
}
#ifdef DEBUG_TIMERS
printf("Executing timer %p (thread = %lu)\n", t, SDL_ThreadID());
#endif
timer = *t;
SDL_mutexV(SDL_timer_mutex);
ms = timer.cb(timer.interval, timer.param);
SDL_mutexP(SDL_timer_mutex);
if (list_changed) {
/* Abort, list of timers modified */
/* FIXME: what if ms was changed? */
break;
}
if (ms != t->interval) {
if (ms) {
t->interval = ROUND_RESOLUTION(ms);
} else {
/* Remove timer from the list */
#ifdef DEBUG_TIMERS
printf("SDL: Removing timer %p\n", t);
#endif
if (prev) {
prev->next = next;
} else {
SDL_timers = next;
}
SDL_free(t);
--SDL_timer_running;
removed = SDL_TRUE;
}
}
}
/* Don't update prev if the timer has disappeared */
if (!removed) {
prev = t;
}
}
SDL_mutexV(SDL_timer_mutex);
}
static SDL_TimerID
SDL_AddTimerInternal(Uint32 interval, SDL_NewTimerCallback callback,
void *param)
{
SDL_TimerID t;
t = (SDL_TimerID) SDL_malloc(sizeof(struct _SDL_TimerID));
if (t) {
t->interval = ROUND_RESOLUTION(interval);
t->cb = callback;
t->param = param;
t->last_alarm = SDL_GetTicks();
t->next = SDL_timers;
SDL_timers = t;
++SDL_timer_running;
list_changed = SDL_TRUE;
}
#ifdef DEBUG_TIMERS
printf("SDL_AddTimer(%d) = %08x num_timers = %d\n", interval, (Uint32) t,
SDL_timer_running);
#endif
return t;
}
SDL_TimerID
SDL_AddTimer(Uint32 interval, SDL_NewTimerCallback callback, void *param)
{
SDL_TimerID t;
if (!SDL_timer_mutex) {
if (SDL_timer_started) {
SDL_SetError("This platform doesn't support multiple timers");
} else {
SDL_SetError("You must call SDL_Init(SDL_INIT_TIMER) first");
}
return NULL;
}
if (!SDL_timer_threaded) {
SDL_SetError("Multiple timers require threaded events!");
return NULL;
}
SDL_mutexP(SDL_timer_mutex);
t = SDL_AddTimerInternal(interval, callback, param);
SDL_mutexV(SDL_timer_mutex);
return t;
}
SDL_bool
SDL_RemoveTimer(SDL_TimerID id)
{
SDL_TimerID t, prev = NULL;
SDL_bool removed;
removed = SDL_FALSE;
SDL_mutexP(SDL_timer_mutex);
/* Look for id in the linked list of timers */
for (t = SDL_timers; t; prev = t, t = t->next) {
if (t == id) {
if (prev) {
prev->next = t->next;
} else {
SDL_timers = t->next;
}
SDL_free(t);
--SDL_timer_running;
removed = SDL_TRUE;
list_changed = SDL_TRUE;
break;
}
}
#ifdef DEBUG_TIMERS
printf("SDL_RemoveTimer(%08x) = %d num_timers = %d thread = %lu\n",
(Uint32) id, removed, SDL_timer_running, SDL_ThreadID());
#endif
SDL_mutexV(SDL_timer_mutex);
return removed;
}
/* Old style callback functions are wrapped through this */
static Uint32 SDLCALL
callback_wrapper(Uint32 ms, void *param)
{
SDL_TimerCallback func = (SDL_TimerCallback) param;
return (*func) (ms);
}
int
SDL_SetTimer(Uint32 ms, SDL_TimerCallback callback)
{
int retval;
#ifdef DEBUG_TIMERS
printf("SDL_SetTimer(%d)\n", ms);
#endif
retval = 0;
if (SDL_timer_threaded) {
SDL_mutexP(SDL_timer_mutex);
}
if (SDL_timer_running) { /* Stop any currently running timer */
if (SDL_timer_threaded) {
while (SDL_timers) {
SDL_TimerID freeme = SDL_timers;
SDL_timers = SDL_timers->next;
SDL_free(freeme);
}
SDL_timer_running = 0;
list_changed = SDL_TRUE;
} else {
SDL_SYS_StopTimer();
SDL_timer_running = 0;
}
}
if (ms) {
if (SDL_timer_threaded) {
if (SDL_AddTimerInternal
(ms, callback_wrapper, (void *) callback) == NULL) {
retval = -1;
}
} else {
SDL_timer_running = 1;
SDL_alarm_interval = ms;
SDL_alarm_callback = callback;
retval = SDL_SYS_StartTimer();
}
}
if (SDL_timer_threaded) {
SDL_mutexV(SDL_timer_mutex);
}
return retval;
}
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
/* Useful functions and variables from SDL_timer.c */
#include "SDL_timer.h"
#define ROUND_RESOLUTION(X) \
(((X+TIMER_RESOLUTION-1)/TIMER_RESOLUTION)*TIMER_RESOLUTION)
extern int SDL_timer_started;
extern int SDL_timer_running;
/* Data to handle a single periodic alarm */
extern Uint32 SDL_alarm_interval;
extern SDL_TimerCallback SDL_alarm_callback;
/* Set whether or not the timer should use a thread.
This should be called while the timer subsystem is running.
*/
extern int SDL_SetTimerThreaded(int value);
extern int SDL_TimerInit(void);
extern void SDL_TimerQuit(void);
/* This function is called from the SDL event thread if it is available */
extern void SDL_ThreadedTimerCheck(void);
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
#ifdef SDL_TIMER_BEOS
#include <be/kernel/OS.h>
#include "SDL_thread.h"
#include "SDL_timer.h"
#include "../SDL_timer_c.h"
static bigtime_t start;
void
SDL_StartTicks(void)
{
/* Set first ticks value */
start = system_time();
}
Uint32
SDL_GetTicks(void)
{
return ((system_time() - start) / 1000);
}
void
SDL_Delay(Uint32 ms)
{
snooze(ms * 1000);
}
/* Data to handle a single periodic alarm */
static int timer_alive = 0;
static SDL_Thread *timer = NULL;
static int
RunTimer(void *unused)
{
while (timer_alive) {
if (SDL_timer_running) {
SDL_ThreadedTimerCheck();
}
SDL_Delay(10);
}
return (0);
}
/* This is only called if the event thread is not running */
int
SDL_SYS_TimerInit(void)
{
timer_alive = 1;
timer = SDL_CreateThread(RunTimer, NULL);
if (timer == NULL)
return (-1);
return (SDL_SetTimerThreaded(1));
}
void
SDL_SYS_TimerQuit(void)
{
timer_alive = 0;
if (timer) {
SDL_WaitThread(timer, NULL);
timer = NULL;
}
}
int
SDL_SYS_StartTimer(void)
{
SDL_SetError("Internal logic error: BeOS uses threaded timer");
return (-1);
}
void
SDL_SYS_StopTimer(void)
{
return;
}
#endif /* SDL_TIMER_BEOS */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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_TIMER_DUMMY) || defined(SDL_TIMERS_DISABLED)
#include "SDL_timer.h"
#include "../SDL_timer_c.h"
void
SDL_StartTicks(void)
{
}
Uint32
SDL_GetTicks(void)
{
SDL_Unsupported();
return 0;
}
void
SDL_Delay(Uint32 ms)
{
SDL_Unsupported();
}
#include "SDL_thread.h"
/* Data to handle a single periodic alarm */
static int timer_alive = 0;
static SDL_Thread *timer = NULL;
static int
RunTimer(void *unused)
{
while (timer_alive) {
if (SDL_timer_running) {
SDL_ThreadedTimerCheck();
}
SDL_Delay(1);
}
return (0);
}
/* This is only called if the event thread is not running */
int
SDL_SYS_TimerInit(void)
{
timer_alive = 1;
timer = SDL_CreateThread(RunTimer, NULL);
if (timer == NULL)
return (-1);
return (SDL_SetTimerThreaded(1));
}
void
SDL_SYS_TimerQuit(void)
{
timer_alive = 0;
if (timer) {
SDL_WaitThread(timer, NULL);
timer = NULL;
}
}
int
SDL_SYS_StartTimer(void)
{
SDL_SetError("Internal logic error: threaded timer in use");
return (-1);
}
void
SDL_SYS_StopTimer(void)
{
return;
}
#endif /* SDL_TIMER_DUMMY || SDL_TIMERS_DISABLED */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
#ifdef SDL_TIMER_NDS
#include <nds.h>
#include <nds/timers.h>
#include "SDL_timer.h"
#include "../SDL_timer_c.h"
#include "../SDL_systimer.h"
/* Data to handle a single periodic alarm */
static int timer_alive = 0;
static Uint32 timer_ticks;
void
SDL_StartTicks(void)
{
if (!timer_alive) {
SDL_SYS_TimerInit();
SDL_SYS_StartTimer();
}
timer_ticks = 0;
}
Uint32
SDL_GetTicks(void)
{
return timer_ticks;
}
void
SDL_Delay(Uint32 ms)
{
Uint32 start = SDL_GetTicks();
while (timer_alive) {
if ((SDL_GetTicks() - start) >= ms)
break;
}
}
static int
RunTimer(void *unused)
{
while (timer_alive) {
if (SDL_timer_running) {
}
SDL_Delay(1);
}
return (0);
}
void
NDS_TimerInterrupt(void)
{
timer_ticks++;
}
/* This is only called if the event thread is not running */
int
SDL_SYS_TimerInit(void)
{
timer_alive = 1;
timer_ticks = 0;
TIMER_CR(3) = TIMER_DIV_1024 | TIMER_IRQ_REQ;
TIMER_DATA(3) = TIMER_FREQ_1024(1000);
irqSet(IRQ_TIMER3, NDS_TimerInterrupt);
irqEnable(IRQ_TIMER3);
return 0;
}
void
SDL_SYS_TimerQuit(void)
{
if (timer_alive) {
TIMER_CR(3) = 0;
}
timer_alive = 0;
irqDisable(IRQ_TIMER3);
}
int
SDL_SYS_StartTimer(void)
{
TIMER_CR(3) |= TIMER_ENABLE;
return 0;
}
void
SDL_SYS_StopTimer(void)
{
TIMER_CR(3) &= ~TIMER_ENABLE;
return;
}
#endif /* SDL_TIMER_NDS */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
#ifdef SDL_TIMER_RISCOS
#include <stdio.h>
#include <time.h>
#include <sys/time.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "SDL_timer.h"
#include "../SDL_timer_c.h"
#if SDL_THREADS_DISABLED
/* Timer SDL_arraysize(Timer ),start/reset time */
static Uint32 timerStart;
/* Timer running function */
void RISCOS_CheckTimer();
#else
#include <pthread.h>
extern SDL_threadID riscos_main_thread;
extern int riscos_using_threads;
extern SDL_threadID SDL_ThreadID();
extern SDL_threadID SDL_EventThreadID(void);
#endif
extern void RISCOS_BackgroundTasks(void);
/* The first ticks value of the application */
clock_t start;
void
SDL_StartTicks(void)
{
/* Set first ticks value */
start = clock();
}
Uint32
SDL_GetTicks(void)
{
clock_t ticks;
ticks = clock() - start;
#if CLOCKS_PER_SEC == 1000
return (ticks);
#elif CLOCKS_PER_SEC == 100
return (ticks * 10);
#else
return ticks * (1000 / CLOCKS_PER_SEC);
#endif
}
void
SDL_Delay(Uint32 ms)
{
Uint32 now, then, elapsed;
#if !SDL_THREADS_DISABLED
int is_event_thread;
if (riscos_using_threads) {
is_event_thread = 0;
if (SDL_EventThreadID()) {
if (SDL_EventThreadID() == SDL_ThreadID())
is_event_thread = 1;
} else if (SDL_ThreadID() == riscos_main_thread)
is_event_thread = 1;
} else
is_event_thread = 1;
#endif
/*TODO: Next version of Unixlib may allow us to use usleep here */
/* for non event threads */
/* Set the timeout interval - Linux only needs to do this once */
then = SDL_GetTicks();
do {
/* Do background tasks required while sleeping as we are not multithreaded */
#if SDL_THREADS_DISABLED
RISCOS_BackgroundTasks();
#else
/* For threaded build only run background tasks in event thread */
if (is_event_thread)
RISCOS_BackgroundTasks();
#endif
/* Calculate the time interval left (in case of interrupt) */
now = SDL_GetTicks();
elapsed = (now - then);
then = now;
if (elapsed >= ms) {
break;
}
ms -= elapsed;
#if !SDL_THREADS_DISABLED
/* Need to yield to let other threads have a go */
if (riscos_using_threads)
pthread_yield();
#endif
} while (1);
}
#if SDL_THREADS_DISABLED
/* Non-threaded version of timer */
int
SDL_SYS_TimerInit(void)
{
return (0);
}
void
SDL_SYS_TimerQuit(void)
{
SDL_SetTimer(0, NULL);
}
int
SDL_SYS_StartTimer(void)
{
timerStart = SDL_GetTicks();
return (0);
}
void
SDL_SYS_StopTimer(void)
{
/* Don't need to do anything as we use SDL_timer_running
to detect if we need to check the timer */
}
void
RISCOS_CheckTimer()
{
if (SDL_timer_running
&& SDL_GetTicks() - timerStart >= SDL_alarm_interval) {
Uint32 ms;
ms = SDL_alarm_callback(SDL_alarm_interval);
if (ms != SDL_alarm_interval) {
if (ms) {
SDL_alarm_interval = ROUND_RESOLUTION(ms);
} else {
SDL_alarm_interval = 0;
SDL_timer_running = 0;
}
}
if (SDL_alarm_interval)
timerStart = SDL_GetTicks();
}
}
#else
/* Threaded version of timer - based on code for linux */
#include "SDL_thread.h"
/* Data to handle a single periodic alarm */
static int timer_alive = 0;
static SDL_Thread *timer = NULL;
static int
RunTimer(void *unused)
{
while (timer_alive) {
if (SDL_timer_running) {
SDL_ThreadedTimerCheck();
}
SDL_Delay(1);
}
return (0);
}
/* This is only called if the event thread is not running */
int
SDL_SYS_TimerInit(void)
{
timer_alive = 1;
timer = SDL_CreateThread(RunTimer, NULL);
if (timer == NULL)
return (-1);
return (SDL_SetTimerThreaded(1));
}
void
SDL_SYS_TimerQuit(void)
{
timer_alive = 0;
if (timer) {
SDL_WaitThread(timer, NULL);
timer = NULL;
}
}
int
SDL_SYS_StartTimer(void)
{
SDL_SetError("Internal logic error: RISC OS uses threaded timer");
return (-1);
}
void
SDL_SYS_StopTimer(void)
{
return;
}
#endif /* SDL_THREADS_DISABLED */
#endif /* SDL_TIMER_RISCOS */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
#ifdef SDL_TIMER_UNIX
#include <stdio.h>
#include <sys/time.h>
#include <signal.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "SDL_timer.h"
#include "../SDL_systimer.h"
#include "../SDL_timer_c.h"
/* The clock_gettime provides monotonous time, so we should use it if
it's available. The clock_gettime function is behind ifdef
for __USE_POSIX199309
Tommi Kyntola (tommi.kyntola@ray.fi) 27/09/2005
*/
#if HAVE_NANOSLEEP || HAVE_CLOCK_GETTIME
#include <time.h>
#endif
#if SDL_THREADS_DISABLED
#define USE_ITIMER
#endif
/* The first ticks value of the application */
#ifdef HAVE_CLOCK_GETTIME
static struct timespec start;
#else
static struct timeval start;
#endif /* HAVE_CLOCK_GETTIME */
void
SDL_StartTicks(void)
{
/* Set first ticks value */
#if HAVE_CLOCK_GETTIME
clock_gettime(CLOCK_MONOTONIC, &start);
#else
gettimeofday(&start, NULL);
#endif
}
Uint32
SDL_GetTicks(void)
{
#if HAVE_CLOCK_GETTIME
Uint32 ticks;
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
ticks =
(now.tv_sec - start.tv_sec) * 1000 + (now.tv_nsec -
start.tv_nsec) / 1000000;
return (ticks);
#else
Uint32 ticks;
struct timeval now;
gettimeofday(&now, NULL);
ticks =
(now.tv_sec - start.tv_sec) * 1000 + (now.tv_usec -
start.tv_usec) / 1000;
return (ticks);
#endif
}
void
SDL_Delay(Uint32 ms)
{
int was_error;
#if HAVE_NANOSLEEP
struct timespec elapsed, tv;
#else
struct timeval tv;
Uint32 then, now, elapsed;
#endif
/* Set the timeout interval */
#if HAVE_NANOSLEEP
elapsed.tv_sec = ms / 1000;
elapsed.tv_nsec = (ms % 1000) * 1000000;
#else
then = SDL_GetTicks();
#endif
do {
errno = 0;
#if HAVE_NANOSLEEP
tv.tv_sec = elapsed.tv_sec;
tv.tv_nsec = elapsed.tv_nsec;
was_error = nanosleep(&tv, &elapsed);
#else
/* Calculate the time interval left (in case of interrupt) */
now = SDL_GetTicks();
elapsed = (now - then);
then = now;
if (elapsed >= ms) {
break;
}
ms -= elapsed;
tv.tv_sec = ms / 1000;
tv.tv_usec = (ms % 1000) * 1000;
was_error = select(0, NULL, NULL, NULL, &tv);
#endif /* HAVE_NANOSLEEP */
} while (was_error && (errno == EINTR));
}
#ifdef USE_ITIMER
static void
HandleAlarm(int sig)
{
Uint32 ms;
if (SDL_alarm_callback) {
ms = (*SDL_alarm_callback) (SDL_alarm_interval);
if (ms != SDL_alarm_interval) {
SDL_SetTimer(ms, SDL_alarm_callback);
}
}
}
int
SDL_SYS_TimerInit(void)
{
struct sigaction action;
/* Set the alarm handler (Linux specific) */
SDL_memset(&action, 0, sizeof(action));
action.sa_handler = HandleAlarm;
action.sa_flags = SA_RESTART;
sigemptyset(&action.sa_mask);
sigaction(SIGALRM, &action, NULL);
return (0);
}
void
SDL_SYS_TimerQuit(void)
{
SDL_SetTimer(0, NULL);
}
int
SDL_SYS_StartTimer(void)
{
struct itimerval timer;
timer.it_value.tv_sec = (SDL_alarm_interval / 1000);
timer.it_value.tv_usec = (SDL_alarm_interval % 1000) * 1000;
timer.it_interval.tv_sec = (SDL_alarm_interval / 1000);
timer.it_interval.tv_usec = (SDL_alarm_interval % 1000) * 1000;
setitimer(ITIMER_REAL, &timer, NULL);
return (0);
}
void
SDL_SYS_StopTimer(void)
{
struct itimerval timer;
SDL_memset(&timer, 0, (sizeof timer));
setitimer(ITIMER_REAL, &timer, NULL);
}
#else /* USE_ITIMER */
#include "SDL_thread.h"
/* Data to handle a single periodic alarm */
static int timer_alive = 0;
static SDL_Thread *timer = NULL;
static int
RunTimer(void *unused)
{
while (timer_alive) {
if (SDL_timer_running) {
SDL_ThreadedTimerCheck();
}
SDL_Delay(1);
}
return (0);
}
/* This is only called if the event thread is not running */
int
SDL_SYS_TimerInit(void)
{
timer_alive = 1;
timer = SDL_CreateThread(RunTimer, NULL);
if (timer == NULL)
return (-1);
return (SDL_SetTimerThreaded(1));
}
void
SDL_SYS_TimerQuit(void)
{
timer_alive = 0;
if (timer) {
SDL_WaitThread(timer, NULL);
timer = NULL;
}
}
int
SDL_SYS_StartTimer(void)
{
SDL_SetError("Internal logic error: Linux uses threaded timer");
return (-1);
}
void
SDL_SYS_StopTimer(void)
{
return;
}
#endif /* USE_ITIMER */
#endif /* SDL_TIMER_UNIX */
/* vi: set ts=4 sw=4 expandtab: */

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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
#ifdef SDL_TIMER_WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <mmsystem.h>
#include "SDL_timer.h"
#include "../SDL_timer_c.h"
#ifdef _WIN32_WCE
#error This is WinCE. Please use src/timer/wince/SDL_systimer.c instead.
#endif
#define TIME_WRAP_VALUE (~(DWORD)0)
/* The first (low-resolution) ticks value of the application */
static DWORD start;
#ifndef USE_GETTICKCOUNT
/* Store if a high-resolution performance counter exists on the system */
static BOOL hires_timer_available;
/* The first high-resolution ticks value of the application */
static LARGE_INTEGER hires_start_ticks;
/* The number of ticks per second of the high-resolution performance counter */
static LARGE_INTEGER hires_ticks_per_second;
#endif
void
SDL_StartTicks(void)
{
/* Set first ticks value */
#ifdef USE_GETTICKCOUNT
start = GetTickCount();
#else
#if 0 /* Apparently there are problems with QPC on Win2K */
if (QueryPerformanceFrequency(&hires_ticks_per_second) == TRUE) {
hires_timer_available = TRUE;
QueryPerformanceCounter(&hires_start_ticks);
} else
#endif
{
hires_timer_available = FALSE;
timeBeginPeriod(1); /* use 1 ms timer precision */
start = timeGetTime();
}
#endif
}
Uint32
SDL_GetTicks(void)
{
DWORD now, ticks;
#ifndef USE_GETTICKCOUNT
LARGE_INTEGER hires_now;
#endif
#ifdef USE_GETTICKCOUNT
now = GetTickCount();
#else
if (hires_timer_available) {
QueryPerformanceCounter(&hires_now);
hires_now.QuadPart -= hires_start_ticks.QuadPart;
hires_now.QuadPart *= 1000;
hires_now.QuadPart /= hires_ticks_per_second.QuadPart;
return (DWORD) hires_now.QuadPart;
} else {
now = timeGetTime();
}
#endif
if (now < start) {
ticks = (TIME_WRAP_VALUE - start) + now;
} else {
ticks = (now - start);
}
return (ticks);
}
void
SDL_Delay(Uint32 ms)
{
Sleep(ms);
}
/* Data to handle a single periodic alarm */
static UINT timerID = 0;
static void CALLBACK
HandleAlarm(UINT uID, UINT uMsg, DWORD_PTR dwUser,
DWORD_PTR dw1, DWORD_PTR dw2)
{
SDL_ThreadedTimerCheck();
}
int
SDL_SYS_TimerInit(void)
{
MMRESULT result;
/* Set timer resolution */
result = timeBeginPeriod(TIMER_RESOLUTION);
if (result != TIMERR_NOERROR) {
SDL_SetError("Warning: Can't set %d ms timer resolution",
TIMER_RESOLUTION);
}
/* Allow 10 ms of drift so we don't chew on CPU */
timerID =
timeSetEvent(TIMER_RESOLUTION, 1, HandleAlarm, 0, TIME_PERIODIC);
if (!timerID) {
SDL_SetError("timeSetEvent() failed");
return (-1);
}
return (SDL_SetTimerThreaded(1));
}
void
SDL_SYS_TimerQuit(void)
{
if (timerID) {
timeKillEvent(timerID);
}
timeEndPeriod(TIMER_RESOLUTION);
}
int
SDL_SYS_StartTimer(void)
{
SDL_SetError("Internal logic error: Win32 uses threaded timer");
return (-1);
}
void
SDL_SYS_StopTimer(void)
{
return;
}
#endif /* SDL_TIMER_WIN32 */
/* vi: set ts=4 sw=4 expandtab: */

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@@ -0,0 +1,211 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2010 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"
#ifdef SDL_TIMER_WINCE
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <mmsystem.h>
#include "SDL_thread.h"
#include "SDL_timer.h"
#include "../SDL_timer_c.h"
static Uint64 start_date;
static Uint64 start_ticks;
static Uint64
wce_ticks(void)
{
return ((Uint64) GetTickCount());
}
static Uint64
wce_date(void)
{
union
{
FILETIME ftime;
Uint64 itime;
} ftime;
SYSTEMTIME stime;
GetSystemTime(&stime);
SystemTimeToFileTime(&stime, &ftime.ftime);
ftime.itime /= 10000; // Convert 100ns intervals to 1ms intervals
// Remove ms portion, which can't be relied on
ftime.itime -= (ftime.itime % 1000);
return (ftime.itime);
}
static Sint32
wce_rel_ticks(void)
{
return ((Sint32) (wce_ticks() - start_ticks));
}
static Sint32
wce_rel_date(void)
{
return ((Sint32) (wce_date() - start_date));
}
/* Return time in ms relative to when SDL was started */
Uint32
SDL_GetTicks()
{
Sint32 offset = wce_rel_date() - wce_rel_ticks();
if ((offset < -1000) || (offset > 1000)) {
// fprintf(stderr,"Time desync(%+d), resyncing\n",offset/1000);
start_ticks -= offset;
}
return ((Uint32) wce_rel_ticks());
}
/* Give up approx. givem milliseconds to the OS. */
void
SDL_Delay(Uint32 ms)
{
Sleep(ms);
}
/* Recard start-time of application for reference */
void
SDL_StartTicks(void)
{
start_date = wce_date();
start_ticks = wce_ticks();
}
static UINT WIN_timer;
#if ( _WIN32_WCE <= 420 )
static HANDLE timersThread = 0;
static HANDLE timersQuitEvent = 0;
DWORD
TimersThreadProc(void *data)
{
while (WaitForSingleObject(timersQuitEvent, 10) == WAIT_TIMEOUT) {
SDL_ThreadedTimerCheck();
}
return 0;
}
int
SDL_SYS_TimerInit(void)
{
// create a thread to process a threaded timers
// SetTimer does not suit the needs because
// TimerCallbackProc will be called only when WM_TIMER occured
timersQuitEvent = CreateEvent(0, TRUE, FALSE, 0);
if (!timersQuitEvent) {
SDL_SetError("Cannot create event for timers thread");
return -1;
}
timersThread = CreateThread(NULL, 0, TimersThreadProc, 0, 0, 0);
if (!timersThread) {
SDL_SetError
("Cannot create timers thread, check amount of RAM available");
return -1;
}
SetThreadPriority(timersThread, THREAD_PRIORITY_HIGHEST);
return (SDL_SetTimerThreaded(1));
}
void
SDL_SYS_TimerQuit(void)
{
SetEvent(timersQuitEvent);
if (WaitForSingleObject(timersThread, 2000) == WAIT_TIMEOUT)
TerminateThread(timersThread, 0);
CloseHandle(timersThread);
CloseHandle(timersQuitEvent);
return;
}
#else
#pragma comment(lib, "mmtimer.lib")
/* Data to handle a single periodic alarm */
static UINT timerID = 0;
static void CALLBACK
HandleAlarm(UINT uID, UINT uMsg, DWORD dwUser, DWORD dw1, DWORD dw2)
{
SDL_ThreadedTimerCheck();
}
int
SDL_SYS_TimerInit(void)
{
MMRESULT result;
/* Set timer resolution */
result = timeBeginPeriod(TIMER_RESOLUTION);
if (result != TIMERR_NOERROR) {
SDL_SetError("Warning: Can't set %d ms timer resolution",
TIMER_RESOLUTION);
}
/* Allow 10 ms of drift so we don't chew on CPU */
timerID =
timeSetEvent(TIMER_RESOLUTION, 1, HandleAlarm, 0, TIME_PERIODIC);
if (!timerID) {
SDL_SetError("timeSetEvent() failed");
return (-1);
}
return (SDL_SetTimerThreaded(1));
}
void
SDL_SYS_TimerQuit(void)
{
if (timerID) {
timeKillEvent(timerID);
}
timeEndPeriod(TIMER_RESOLUTION);
}
#endif
int
SDL_SYS_StartTimer(void)
{
SDL_SetError("Internal logic error: WinCE uses threaded timer");
return (-1);
}
void
SDL_SYS_StopTimer(void)
{
return;
}
#endif /* SDL_TIMER_WINCE */
/* vi: set ts=4 sw=4 expandtab: */