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Expose GBASync{Suspend/Resume}Drawing

This commit is contained in:
Jeffrey Pfau 2014-10-18 02:08:20 -07:00
parent 13a831d3b0
commit c0d1ca089c
2 changed files with 21 additions and 10 deletions
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28
src/gba/gba-thread.c
View File

@ -76,14 +76,14 @@ static void _pauseThread(struct GBAThread* threadContext, bool onThread) {
}
}
static void _changeVideoSync(struct GBAThread* threadContext, bool frameOn) {
static void _changeVideoSync(struct GBASync* sync, bool frameOn) {
// Make sure the video thread can process events while the GBA thread is paused
MutexLock(&threadContext->sync.videoFrameMutex);
if (frameOn != threadContext->sync.videoFrameOn) {
threadContext->sync.videoFrameOn = frameOn;
ConditionWake(&threadContext->sync.videoFrameAvailableCond);
MutexLock(&sync->videoFrameMutex);
if (frameOn != sync->videoFrameOn) {
sync->videoFrameOn = frameOn;
ConditionWake(&sync->videoFrameAvailableCond);
}
MutexUnlock(&threadContext->sync.videoFrameMutex);
MutexUnlock(&sync->videoFrameMutex);
}
static THREAD_ENTRY _GBAThreadRun(void* context) {
@ -434,7 +434,7 @@ void GBAThreadPause(struct GBAThread* threadContext) {
}
MutexUnlock(&threadContext->stateMutex);
_changeVideoSync(threadContext, frameOn);
_changeVideoSync(&threadContext->sync, frameOn);
}
void GBAThreadUnpause(struct GBAThread* threadContext) {
@ -446,7 +446,7 @@ void GBAThreadUnpause(struct GBAThread* threadContext) {
}
MutexUnlock(&threadContext->stateMutex);
_changeVideoSync(threadContext, true);
_changeVideoSync(&threadContext->sync, true);
}
bool GBAThreadIsPaused(struct GBAThread* threadContext) {
@ -471,7 +471,7 @@ void GBAThreadTogglePause(struct GBAThread* threadContext) {
}
MutexUnlock(&threadContext->stateMutex);
_changeVideoSync(threadContext, frameOn);
_changeVideoSync(&threadContext->sync, frameOn);
}
void GBAThreadPauseFromThread(struct GBAThread* threadContext) {
@ -484,7 +484,7 @@ void GBAThreadPauseFromThread(struct GBAThread* threadContext) {
}
MutexUnlock(&threadContext->stateMutex);
_changeVideoSync(threadContext, frameOn);
_changeVideoSync(&threadContext->sync, frameOn);
}
#ifdef USE_PTHREADS
@ -579,6 +579,14 @@ bool GBASyncDrawingFrame(struct GBASync* sync) {
return sync->videoFrameSkip <= 0;
}
void GBASyncSuspendDrawing(struct GBASync* sync) {
_changeVideoSync(sync, false);
}
void GBASyncResumeDrawing(struct GBASync* sync) {
_changeVideoSync(sync, true);
}
void GBASyncProduceAudio(struct GBASync* sync, bool wait) {
if (sync->audioWait && wait) {
// TODO loop properly in event of spurious wakeups

3
src/gba/gba-thread.h
View File

@ -121,6 +121,9 @@ bool GBASyncWaitFrameStart(struct GBASync* sync, int frameskip);
void GBASyncWaitFrameEnd(struct GBASync* sync);
bool GBASyncDrawingFrame(struct GBASync* sync);
void GBASyncSuspendDrawing(struct GBASync* sync);
void GBASyncResumeDrawing(struct GBASync* sync);
void GBASyncProduceAudio(struct GBASync* sync, bool wait);
void GBASyncLockAudio(struct GBASync* sync);
void GBASyncUnlockAudio(struct GBASync* sync);