Updated SDL 1.3 to the latest hg-5868:33245988e8a2 , video resize is not supported yet
This commit is contained in:
@@ -1,42 +0,0 @@
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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/* The system dependent timer handling functions */
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#include "SDL_timer.h"
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#include "SDL_timer_c.h"
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/* Initialize the system dependent timer subsystem */
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extern int SDL_SYS_TimerInit(void);
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/* Quit the system dependent timer subsystem */
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extern void SDL_SYS_TimerQuit(void);
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/* Start a timer set up by SDL_SetTimer() */
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extern int SDL_SYS_StartTimer(void);
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/* Stop a previously started timer */
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extern void SDL_SYS_StopTimer(void);
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/* vi: set ts=4 sw=4 expandtab: */
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@@ -1,300 +1,386 @@
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/*
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SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2010 Sam Lantinga
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Simple DirectMedia Layer
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Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Sam Lantinga
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slouken@libsdl.org
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_config.h"
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#include "SDL_timer.h"
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#include "SDL_timer_c.h"
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#include "SDL_mutex.h"
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#include "SDL_systimer.h"
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#include "SDL_atomic.h"
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#include "SDL_cpuinfo.h"
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#include "SDL_thread.h"
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/* #define DEBUG_TIMERS */
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int SDL_timer_started = 0;
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int SDL_timer_running = 0;
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/* Data to handle a single periodic alarm */
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Uint32 SDL_alarm_interval = 0;
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SDL_TimerCallback SDL_alarm_callback;
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/* Data used for a thread-based timer */
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static int SDL_timer_threaded = 0;
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struct _SDL_TimerID
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typedef struct _SDL_Timer
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{
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Uint32 interval;
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SDL_NewTimerCallback cb;
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int timerID;
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SDL_TimerCallback callback;
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void *param;
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Uint32 last_alarm;
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struct _SDL_TimerID *next;
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};
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Uint32 interval;
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Uint32 scheduled;
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volatile SDL_bool canceled;
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struct _SDL_Timer *next;
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} SDL_Timer;
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static SDL_TimerID SDL_timers = NULL;
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static SDL_mutex *SDL_timer_mutex;
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static volatile SDL_bool list_changed = SDL_FALSE;
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/* Set whether or not the timer should use a thread.
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This should not be called while the timer subsystem is running.
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*/
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int
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SDL_SetTimerThreaded(int value)
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typedef struct _SDL_TimerMap
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{
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int retval;
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int timerID;
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SDL_Timer *timer;
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struct _SDL_TimerMap *next;
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} SDL_TimerMap;
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if (SDL_timer_started) {
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SDL_SetError("Timer already initialized");
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retval = -1;
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} else {
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retval = 0;
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SDL_timer_threaded = value;
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/* The timers are kept in a sorted list */
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typedef struct {
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/* Data used by the main thread */
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SDL_Thread *thread;
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SDL_atomic_t nextID;
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SDL_TimerMap *timermap;
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SDL_mutex *timermap_lock;
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/* Padding to separate cache lines between threads */
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char cache_pad[SDL_CACHELINE_SIZE];
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/* Data used to communicate with the timer thread */
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SDL_SpinLock lock;
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SDL_sem *sem;
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SDL_Timer * volatile pending;
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SDL_Timer * volatile freelist;
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volatile SDL_bool active;
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/* List of timers - this is only touched by the timer thread */
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SDL_Timer *timers;
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} SDL_TimerData;
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static SDL_TimerData SDL_timer_data;
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/* The idea here is that any thread might add a timer, but a single
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* thread manages the active timer queue, sorted by scheduling time.
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*
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* Timers are removed by simply setting a canceled flag
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*/
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static void
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SDL_AddTimerInternal(SDL_TimerData *data, SDL_Timer *timer)
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{
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SDL_Timer *prev, *curr;
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prev = NULL;
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for (curr = data->timers; curr; prev = curr, curr = curr->next) {
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if ((Sint32)(timer->scheduled-curr->scheduled) < 0) {
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break;
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}
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}
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return retval;
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/* Insert the timer here! */
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if (prev) {
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prev->next = timer;
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} else {
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data->timers = timer;
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}
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timer->next = curr;
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}
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static int
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SDL_TimerThread(void *_data)
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{
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SDL_TimerData *data = (SDL_TimerData *)_data;
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SDL_Timer *pending;
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SDL_Timer *current;
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SDL_Timer *freelist_head = NULL;
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SDL_Timer *freelist_tail = NULL;
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Uint32 tick, now, interval, delay;
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/* Threaded timer loop:
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* 1. Queue timers added by other threads
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* 2. Handle any timers that should dispatch this cycle
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* 3. Wait until next dispatch time or new timer arrives
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*/
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for ( ; ; ) {
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/* Pending and freelist maintenance */
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SDL_AtomicLock(&data->lock);
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{
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/* Get any timers ready to be queued */
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pending = data->pending;
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data->pending = NULL;
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/* Make any unused timer structures available */
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if (freelist_head) {
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freelist_tail->next = data->freelist;
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data->freelist = freelist_head;
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}
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}
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SDL_AtomicUnlock(&data->lock);
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/* Sort the pending timers into our list */
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while (pending) {
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current = pending;
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pending = pending->next;
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SDL_AddTimerInternal(data, current);
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}
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freelist_head = NULL;
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freelist_tail = NULL;
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/* Check to see if we're still running, after maintenance */
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if (!data->active) {
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break;
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}
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/* Initial delay if there are no timers */
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delay = SDL_MUTEX_MAXWAIT;
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tick = SDL_GetTicks();
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/* Process all the pending timers for this tick */
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while (data->timers) {
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current = data->timers;
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if ((Sint32)(tick-current->scheduled) < 0) {
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/* Scheduled for the future, wait a bit */
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delay = (current->scheduled - tick);
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break;
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}
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/* We're going to do something with this timer */
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data->timers = current->next;
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if (current->canceled) {
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interval = 0;
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} else {
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interval = current->callback(current->interval, current->param);
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}
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if (interval > 0) {
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/* Reschedule this timer */
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current->scheduled = tick + interval;
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SDL_AddTimerInternal(data, current);
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} else {
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if (!freelist_head) {
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freelist_head = current;
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}
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if (freelist_tail) {
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freelist_tail->next = current;
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}
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freelist_tail = current;
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current->canceled = SDL_TRUE;
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}
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}
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/* Adjust the delay based on processing time */
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now = SDL_GetTicks();
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interval = (now - tick);
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if (interval > delay) {
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delay = 0;
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} else {
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delay -= interval;
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}
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/* Note that each time a timer is added, this will return
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immediately, but we process the timers added all at once.
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That's okay, it just means we run through the loop a few
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extra times.
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*/
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SDL_SemWaitTimeout(data->sem, delay);
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}
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return 0;
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}
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int
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SDL_TimerInit(void)
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{
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int retval;
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SDL_TimerData *data = &SDL_timer_data;
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retval = 0;
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if (SDL_timer_started) {
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SDL_TimerQuit();
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if (!data->active) {
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const char *name = "SDLTimer";
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data->timermap_lock = SDL_CreateMutex();
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if (!data->timermap_lock) {
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return -1;
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}
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data->sem = SDL_CreateSemaphore(0);
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if (!data->sem) {
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SDL_DestroyMutex(data->timermap_lock);
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return -1;
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}
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data->active = SDL_TRUE;
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/* !!! FIXME: this is nasty. */
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#if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
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#undef SDL_CreateThread
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data->thread = SDL_CreateThread(SDL_TimerThread, name, data, NULL, NULL);
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#else
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data->thread = SDL_CreateThread(SDL_TimerThread, name, data);
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#endif
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if (!data->thread) {
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SDL_TimerQuit();
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return -1;
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}
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SDL_AtomicSet(&data->nextID, 1);
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}
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if (!SDL_timer_threaded) {
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retval = SDL_SYS_TimerInit();
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}
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if (SDL_timer_threaded) {
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SDL_timer_mutex = SDL_CreateMutex();
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}
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if (retval == 0) {
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SDL_timer_started = 1;
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}
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return (retval);
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return 0;
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}
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void
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SDL_TimerQuit(void)
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{
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SDL_SetTimer(0, NULL);
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if (SDL_timer_threaded < 2) {
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SDL_SYS_TimerQuit();
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}
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if (SDL_timer_threaded) {
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SDL_DestroyMutex(SDL_timer_mutex);
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SDL_timer_mutex = NULL;
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}
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SDL_timer_started = 0;
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SDL_timer_threaded = 0;
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}
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SDL_TimerData *data = &SDL_timer_data;
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SDL_Timer *timer;
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SDL_TimerMap *entry;
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void
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SDL_ThreadedTimerCheck(void)
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{
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Uint32 now, ms;
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SDL_TimerID t, prev, next;
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SDL_bool removed;
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if (data->active) {
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data->active = SDL_FALSE;
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SDL_mutexP(SDL_timer_mutex);
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list_changed = SDL_FALSE;
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now = SDL_GetTicks();
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for (prev = NULL, t = SDL_timers; t; t = next) {
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removed = SDL_FALSE;
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ms = t->interval - SDL_TIMESLICE;
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next = t->next;
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if ((int) (now - t->last_alarm) > (int) ms) {
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struct _SDL_TimerID timer;
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if ((now - t->last_alarm) < t->interval) {
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t->last_alarm += t->interval;
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} else {
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t->last_alarm = now;
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}
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#ifdef DEBUG_TIMERS
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printf("Executing timer %p (thread = %lu)\n", t, SDL_ThreadID());
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#endif
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timer = *t;
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SDL_mutexV(SDL_timer_mutex);
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ms = timer.cb(timer.interval, timer.param);
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SDL_mutexP(SDL_timer_mutex);
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if (list_changed) {
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/* Abort, list of timers modified */
|
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/* FIXME: what if ms was changed? */
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break;
|
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}
|
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if (ms != t->interval) {
|
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if (ms) {
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t->interval = ROUND_RESOLUTION(ms);
|
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} else {
|
||||
/* Remove timer from the list */
|
||||
#ifdef DEBUG_TIMERS
|
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printf("SDL: Removing timer %p\n", t);
|
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#endif
|
||||
if (prev) {
|
||||
prev->next = next;
|
||||
} else {
|
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SDL_timers = next;
|
||||
}
|
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SDL_free(t);
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--SDL_timer_running;
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removed = SDL_TRUE;
|
||||
}
|
||||
}
|
||||
/* Shutdown the timer thread */
|
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if (data->thread) {
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SDL_SemPost(data->sem);
|
||||
SDL_WaitThread(data->thread, NULL);
|
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data->thread = NULL;
|
||||
}
|
||||
/* Don't update prev if the timer has disappeared */
|
||||
if (!removed) {
|
||||
prev = t;
|
||||
}
|
||||
}
|
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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;
|
||||
SDL_DestroySemaphore(data->sem);
|
||||
data->sem = NULL;
|
||||
|
||||
/* Clean up the timer entries */
|
||||
while (data->timers) {
|
||||
timer = data->timers;
|
||||
data->timers = timer->next;
|
||||
SDL_free(timer);
|
||||
}
|
||||
while (data->freelist) {
|
||||
timer = data->freelist;
|
||||
data->freelist = timer->next;
|
||||
SDL_free(timer);
|
||||
}
|
||||
while (data->timermap) {
|
||||
entry = data->timermap;
|
||||
data->timermap = entry->next;
|
||||
SDL_free(entry);
|
||||
}
|
||||
|
||||
SDL_DestroyMutex(data->timermap_lock);
|
||||
data->timermap_lock = NULL;
|
||||
}
|
||||
#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_AddTimer(Uint32 interval, SDL_TimerCallback 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");
|
||||
SDL_TimerData *data = &SDL_timer_data;
|
||||
SDL_Timer *timer;
|
||||
SDL_TimerMap *entry;
|
||||
|
||||
if (!data->active) {
|
||||
int status = 0;
|
||||
|
||||
SDL_AtomicLock(&data->lock);
|
||||
if (!data->active) {
|
||||
status = SDL_TimerInit();
|
||||
}
|
||||
SDL_AtomicUnlock(&data->lock);
|
||||
|
||||
if (status < 0) {
|
||||
return 0;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
if (!SDL_timer_threaded) {
|
||||
SDL_SetError("Multiple timers require threaded events!");
|
||||
return NULL;
|
||||
|
||||
SDL_AtomicLock(&data->lock);
|
||||
timer = data->freelist;
|
||||
if (timer) {
|
||||
data->freelist = timer->next;
|
||||
}
|
||||
SDL_mutexP(SDL_timer_mutex);
|
||||
t = SDL_AddTimerInternal(interval, callback, param);
|
||||
SDL_mutexV(SDL_timer_mutex);
|
||||
return t;
|
||||
SDL_AtomicUnlock(&data->lock);
|
||||
|
||||
if (timer) {
|
||||
SDL_RemoveTimer(timer->timerID);
|
||||
} else {
|
||||
timer = (SDL_Timer *)SDL_malloc(sizeof(*timer));
|
||||
if (!timer) {
|
||||
SDL_OutOfMemory();
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
timer->timerID = SDL_AtomicIncRef(&data->nextID);
|
||||
timer->callback = callback;
|
||||
timer->param = param;
|
||||
timer->interval = interval;
|
||||
timer->scheduled = SDL_GetTicks() + interval;
|
||||
timer->canceled = SDL_FALSE;
|
||||
|
||||
entry = (SDL_TimerMap *)SDL_malloc(sizeof(*entry));
|
||||
if (!entry) {
|
||||
SDL_free(timer);
|
||||
SDL_OutOfMemory();
|
||||
return 0;
|
||||
}
|
||||
entry->timer = timer;
|
||||
entry->timerID = timer->timerID;
|
||||
|
||||
SDL_mutexP(data->timermap_lock);
|
||||
entry->next = data->timermap;
|
||||
data->timermap = entry;
|
||||
SDL_mutexV(data->timermap_lock);
|
||||
|
||||
/* Add the timer to the pending list for the timer thread */
|
||||
SDL_AtomicLock(&data->lock);
|
||||
timer->next = data->pending;
|
||||
data->pending = timer;
|
||||
SDL_AtomicUnlock(&data->lock);
|
||||
|
||||
/* Wake up the timer thread if necessary */
|
||||
SDL_SemPost(data->sem);
|
||||
|
||||
return entry->timerID;
|
||||
}
|
||||
|
||||
SDL_bool
|
||||
SDL_RemoveTimer(SDL_TimerID id)
|
||||
{
|
||||
SDL_TimerID t, prev = NULL;
|
||||
SDL_bool removed;
|
||||
SDL_TimerData *data = &SDL_timer_data;
|
||||
SDL_TimerMap *prev, *entry;
|
||||
SDL_bool canceled = SDL_FALSE;
|
||||
|
||||
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) {
|
||||
/* Find the timer */
|
||||
SDL_mutexP(data->timermap_lock);
|
||||
prev = NULL;
|
||||
for (entry = data->timermap; entry; prev = entry, entry = entry->next) {
|
||||
if (entry->timerID == id) {
|
||||
if (prev) {
|
||||
prev->next = t->next;
|
||||
prev->next = entry->next;
|
||||
} else {
|
||||
SDL_timers = t->next;
|
||||
data->timermap = entry->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;
|
||||
}
|
||||
SDL_mutexV(data->timermap_lock);
|
||||
|
||||
/* 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 (entry) {
|
||||
if (!entry->timer->canceled) {
|
||||
entry->timer->canceled = SDL_TRUE;
|
||||
canceled = SDL_TRUE;
|
||||
}
|
||||
SDL_free(entry);
|
||||
}
|
||||
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;
|
||||
return canceled;
|
||||
}
|
||||
|
||||
/* vi: set ts=4 sw=4 expandtab: */
|
||||
|
||||
@@ -1,23 +1,22 @@
|
||||
/*
|
||||
SDL - Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2010 Sam Lantinga
|
||||
Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
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 software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
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.
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
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
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
#include "SDL_config.h"
|
||||
|
||||
@@ -27,21 +26,7 @@
|
||||
#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: */
|
||||
|
||||
@@ -1,23 +1,22 @@
|
||||
/*
|
||||
SDL - Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2010 Sam Lantinga
|
||||
Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
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 software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
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.
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
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
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
#include "SDL_config.h"
|
||||
|
||||
@@ -25,9 +24,7 @@
|
||||
|
||||
#include <be/kernel/OS.h>
|
||||
|
||||
#include "SDL_thread.h"
|
||||
#include "SDL_timer.h"
|
||||
#include "../SDL_timer_c.h"
|
||||
|
||||
static bigtime_t start;
|
||||
|
||||
@@ -44,61 +41,24 @@ SDL_GetTicks(void)
|
||||
return ((system_time() - start) / 1000);
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceCounter(void)
|
||||
{
|
||||
return system_time();
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceFrequency(void)
|
||||
{
|
||||
return 1000000;
|
||||
}
|
||||
|
||||
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: */
|
||||
|
||||
@@ -1,30 +1,28 @@
|
||||
/*
|
||||
SDL - Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2010 Sam Lantinga
|
||||
Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
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 software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
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.
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
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
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
#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)
|
||||
@@ -38,63 +36,24 @@ SDL_GetTicks(void)
|
||||
return 0;
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceCounter(void)
|
||||
{
|
||||
return SDL_GetTicks();
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceFrequency(void)
|
||||
{
|
||||
return 1000;
|
||||
}
|
||||
|
||||
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: */
|
||||
|
||||
@@ -1,23 +1,22 @@
|
||||
/*
|
||||
SDL - Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2010 Sam Lantinga
|
||||
Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
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 software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
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.
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
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
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
#include "SDL_config.h"
|
||||
|
||||
@@ -27,22 +26,23 @@
|
||||
#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;
|
||||
/* Will wrap after 49 days. Shouldn't be an issue. */
|
||||
static volatile Uint32 timer_ticks;
|
||||
|
||||
static void
|
||||
NDS_TimerInterrupt(void)
|
||||
{
|
||||
timer_ticks++;
|
||||
}
|
||||
|
||||
void
|
||||
SDL_StartTicks(void)
|
||||
{
|
||||
if (!timer_alive) {
|
||||
SDL_SYS_TimerInit();
|
||||
SDL_SYS_StartTimer();
|
||||
}
|
||||
|
||||
timer_ticks = 0;
|
||||
|
||||
/* Set timer 2 to fire every ms. */
|
||||
timerStart(2, ClockDivider_1024, TIMER_FREQ_1024(1000), NDS_TimerInterrupt);
|
||||
}
|
||||
|
||||
Uint32
|
||||
@@ -51,70 +51,28 @@ SDL_GetTicks(void)
|
||||
return timer_ticks;
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceCounter(void)
|
||||
{
|
||||
return SDL_GetTicks();
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceFrequency(void)
|
||||
{
|
||||
return 1000;
|
||||
}
|
||||
|
||||
void
|
||||
SDL_Delay(Uint32 ms)
|
||||
{
|
||||
Uint32 start = SDL_GetTicks();
|
||||
while (timer_alive) {
|
||||
while (1) {
|
||||
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: */
|
||||
|
||||
@@ -1,248 +0,0 @@
|
||||
/*
|
||||
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: */
|
||||
@@ -1,23 +1,22 @@
|
||||
/*
|
||||
SDL - Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2010 Sam Lantinga
|
||||
Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
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 software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
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.
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
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
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
#include "SDL_config.h"
|
||||
|
||||
@@ -25,14 +24,10 @@
|
||||
|
||||
#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
|
||||
@@ -43,10 +38,6 @@
|
||||
#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;
|
||||
@@ -72,6 +63,7 @@ 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 -
|
||||
@@ -80,6 +72,7 @@ SDL_GetTicks(void)
|
||||
#else
|
||||
Uint32 ticks;
|
||||
struct timeval now;
|
||||
|
||||
gettimeofday(&now, NULL);
|
||||
ticks =
|
||||
(now.tv_sec - start.tv_sec) * 1000 + (now.tv_usec -
|
||||
@@ -88,6 +81,40 @@ SDL_GetTicks(void)
|
||||
#endif
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceCounter(void)
|
||||
{
|
||||
#if HAVE_CLOCK_GETTIME
|
||||
Uint64 ticks;
|
||||
struct timespec now;
|
||||
|
||||
clock_gettime(CLOCK_MONOTONIC, &now);
|
||||
ticks = now.tv_sec;
|
||||
ticks *= 1000000000;
|
||||
ticks += now.tv_nsec;
|
||||
return (ticks);
|
||||
#else
|
||||
Uint64 ticks;
|
||||
struct timeval now;
|
||||
|
||||
gettimeofday(&now, NULL);
|
||||
ticks = now.tv_sec;
|
||||
ticks *= 1000000;
|
||||
ticks += now.tv_usec;
|
||||
return (ticks);
|
||||
#endif
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceFrequency(void)
|
||||
{
|
||||
#if HAVE_CLOCK_GETTIME
|
||||
return 1000000000;
|
||||
#else
|
||||
return 1000000;
|
||||
#endif
|
||||
}
|
||||
|
||||
void
|
||||
SDL_Delay(Uint32 ms)
|
||||
{
|
||||
@@ -131,118 +158,6 @@ SDL_Delay(Uint32 ms)
|
||||
} 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: */
|
||||
|
||||
@@ -1,165 +0,0 @@
|
||||
/*
|
||||
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: */
|
||||
@@ -1,35 +1,30 @@
|
||||
/*
|
||||
SDL - Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2010 Sam Lantinga
|
||||
Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
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 software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
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.
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
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
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
#include "SDL_config.h"
|
||||
|
||||
#ifdef SDL_TIMER_WINCE
|
||||
|
||||
#define WIN32_LEAN_AND_MEAN
|
||||
#include <windows.h>
|
||||
#include <mmsystem.h>
|
||||
#include "../../core/windows/SDL_windows.h"
|
||||
|
||||
#include "SDL_thread.h"
|
||||
#include "SDL_timer.h"
|
||||
#include "../SDL_timer_c.h"
|
||||
|
||||
static Uint64 start_date;
|
||||
static Uint64 start_ticks;
|
||||
@@ -70,6 +65,14 @@ wce_rel_date(void)
|
||||
return ((Sint32) (wce_date() - start_date));
|
||||
}
|
||||
|
||||
/* Recard start-time of application for reference */
|
||||
void
|
||||
SDL_StartTicks(void)
|
||||
{
|
||||
start_date = wce_date();
|
||||
start_ticks = wce_ticks();
|
||||
}
|
||||
|
||||
/* Return time in ms relative to when SDL was started */
|
||||
Uint32
|
||||
SDL_GetTicks()
|
||||
@@ -83,6 +86,18 @@ SDL_GetTicks()
|
||||
return ((Uint32) wce_rel_ticks());
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceCounter(void)
|
||||
{
|
||||
return SDL_GetTicks();
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceFrequency(void)
|
||||
{
|
||||
return 1000;
|
||||
}
|
||||
|
||||
/* Give up approx. givem milliseconds to the OS. */
|
||||
void
|
||||
SDL_Delay(Uint32 ms)
|
||||
@@ -90,122 +105,6 @@ 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: */
|
||||
|
||||
131
project/jni/sdl-1.3/src/timer/windows/SDL_systimer.c
Normal file
131
project/jni/sdl-1.3/src/timer/windows/SDL_systimer.c
Normal file
@@ -0,0 +1,131 @@
|
||||
/*
|
||||
Simple DirectMedia Layer
|
||||
Copyright (C) 1997-2011 Sam Lantinga <slouken@libsdl.org>
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
*/
|
||||
#include "SDL_config.h"
|
||||
|
||||
#ifdef SDL_TIMER_WINDOWS
|
||||
|
||||
#include "../../core/windows/SDL_windows.h"
|
||||
#include <mmsystem.h>
|
||||
|
||||
#include "SDL_timer.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);
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceCounter(void)
|
||||
{
|
||||
LARGE_INTEGER counter;
|
||||
|
||||
if (!QueryPerformanceCounter(&counter)) {
|
||||
return SDL_GetTicks();
|
||||
}
|
||||
return counter.QuadPart;
|
||||
}
|
||||
|
||||
Uint64
|
||||
SDL_GetPerformanceFrequency(void)
|
||||
{
|
||||
LARGE_INTEGER frequency;
|
||||
|
||||
if (!QueryPerformanceFrequency(&frequency)) {
|
||||
return 1000;
|
||||
}
|
||||
return frequency.QuadPart;
|
||||
}
|
||||
|
||||
void
|
||||
SDL_Delay(Uint32 ms)
|
||||
{
|
||||
Sleep(ms);
|
||||
}
|
||||
|
||||
#endif /* SDL_TIMER_WINDOWS */
|
||||
|
||||
/* vi: set ts=4 sw=4 expandtab: */
|
||||
Reference in New Issue
Block a user