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vo_opengl_cb: do not block on flipping when redrawing

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Gives slightly better behavior when used with Qt. (Which tends not to
flip buffers when the window is not visible.)
This commit is contained in:
wm4 2015-11-12 22:40:02 +01:00
parent 49a41bf4df
commit b726fefe5d
1 changed files with 5 additions and 0 deletions
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5
video/out/vo_opengl_cb.c
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@ -70,6 +70,7 @@ struct mpv_opengl_cb_context {
struct vo_frame *next_frame; // next frame to draw
int64_t present_count; // incremented when next frame can be shown
int64_t expected_flip_count; // next vsync event for next_frame
bool redrawing; // next_frame was a redraw request
int64_t flip_count;
struct vo_frame *cur_frame;
struct mp_image_params img_params;
@ -350,6 +351,7 @@ static void draw_frame(struct vo *vo, struct vo_frame *frame)
assert(!p->ctx->next_frame);
p->ctx->next_frame = vo_frame_ref(frame);
p->ctx->expected_flip_count = p->ctx->flip_count + 1;
p->ctx->redrawing = frame ? frame->redraw : false;
update(p);
pthread_mutex_unlock(&p->ctx->lock);
}
@ -373,6 +375,9 @@ static void flip_page(struct vo *vo)
p->ctx->present_count += 1;
pthread_cond_signal(&p->ctx->wakeup);
if (p->ctx->redrawing)
goto done; // do not block for redrawing
// Wait until frame was presented
while (p->ctx->expected_flip_count > p->ctx->flip_count) {
// mpv_opengl_cb_report_flip() is declared as optional API.