Uint8 *GLCLDraw::GetBufPtr(Uint32 timeout)
{
Uint32 t = timeout / 10;
Uint32 i;
BOOL flag = FALSE;
if(timeout == 0) {
AG_MutexLock(&mutex_buffer);
return TransferBuffer;
} else {
for(i = 0; i < t; i++) {
if(AG_MutexTryLock(&mutex_buffer) == 0) {
flag = TRUE;
break;
}
AG_Delay(10);
}
if(flag == FALSE) {
t = timeout % 10;
AG_Delay(t);
if(AG_MutexTryLock(&mutex_buffer) == 0) flag = TRUE;
}
if(flag == FALSE) return NULL;
return TransferBuffer;
}
}
/* Animation processing loop */
static void *
AnimProc(void *arg)
{
AG_AnimState *ast = arg;
Uint32 delay;
while (ast->play) {
AG_MutexLock(&ast->lock);
AG_MutexLock(&ast->an->lock);
if (ast->an->n < 1) {
AG_MutexUnlock(&ast->an->lock);
AG_MutexUnlock(&ast->lock);
goto out;
}
if (ast->f & AG_ANIM_REVERSE) {
if (--ast->f < 0) {
if (ast->flags & AG_ANIM_LOOP) {
ast->f = (ast->an->n - 1);
} else if (ast->flags & AG_ANIM_PINGPONG) {
ast->f = 0;
ast->flags &= ~(AG_ANIM_REVERSE);
} else {
ast->play = 0;
AG_MutexUnlock(&ast->an->lock);
AG_MutexUnlock(&ast->lock);
goto out;
}
}
} else {
if (++ast->f >= ast->an->n) {
if (ast->flags & AG_ANIM_LOOP) {
ast->f = 0;
} else if (ast->flags & AG_ANIM_PINGPONG) {
ast->f--;
ast->flags |= AG_ANIM_REVERSE;
} else {
ast->play = 0;
AG_MutexUnlock(&ast->an->lock);
AG_MutexUnlock(&ast->lock);
goto out;
}
}
}
delay = (Uint32)(1000.0/ast->fps);
AG_MutexUnlock(&ast->an->lock);
AG_MutexUnlock(&ast->lock);
AG_Delay(delay);
}
out:
return (NULL);
}
static void *
drawVideoThread(void *data)
{
ffmpegPlayer *me = data;
AG_ObjectLock(me);
for (;;) {
SDL_ffmpegVideoFrame *frame = me->videoFrame[me->curVideoFrame];
if (!frame->ready) {
DEBUG("Video buffer underrun!");
SDL_ffmpegGetVideoFrame(me->file, frame);
}
uint64_t sync = getSync(me);
uint64_t pts = frame->pts;
if (pts >= sync) {
AG_ObjectUnlock(me);
/* condition variable waiting may be faster, test with 500mhz */
AG_Delay(pts - sync);
AG_ObjectLock(me);
if (me->file == NULL) {
/* FIXME */
break;
}
if (pts > getSync(me))
continue;
#ifdef USE_OVERLAY
if (frame->overlay != NULL) {
if (AG_WidgetVisible(me)) {
int frame_x = (AGWIDGET(me)->w - me->disp_w) / 2;
int frame_y = (AGWIDGET(me)->h - me->disp_h) / 2;
SDL_Rect rect = {
.x = AGWIDGET(me)->rView.x1 + frame_x,
.y = AGWIDGET(me)->rView.y1 + frame_y,
.w = me->disp_w,
.h = me->disp_h
};
SDL_DisplayYUVOverlay(frame->overlay, &rect);
}
}
#else
if (frame->surface != NULL) {
#ifdef USE_SDL_SHADOWSURFACE
if (me->surface != NULL)
AG_SDL_ShadowSurfaceFree(me->surface);
me->surface = AG_SDL_ShadowSurface(frame->surface);
#else
if (me->surface != NULL)
AG_SurfaceFree(me->surface);
me->surface = AG_SurfaceFromSDL(frame->surface);
#endif
if (me->surface == NULL) {
/* FIXME */
break;
}
AG_Redraw(AGWIDGET(me));
}
#endif
} else {
/* frame is skipped */
DEBUG("skip frame: %lums late", sync - frame->pts);
}
frame->ready = 0;
RR_INC(me->curVideoFrame, FFMPEGPLAYER_BUFSIZE);
/* wake up buffer-fill thread */
AG_CondSignal(&me->video_cond);
}