X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fcinelerra%2Frenderengine.C;h=bb8f43a865c86f4dc92a3afe4b0d4a6aa5a64ce9;hb=a0cf574cd7814600dc5730b8204b51cb91f8ad12;hp=970a91b0571f9afff27e1ca68c57f71b819db584;hpb=49f85559268fc040fe7ba5611cc0520793cf728b;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/cinelerra/renderengine.C b/cinelerra-5.1/cinelerra/renderengine.C
index 970a91b0..bb8f43a8 100644
--- a/cinelerra-5.1/cinelerra/renderengine.C
+++ b/cinelerra-5.1/cinelerra/renderengine.C
@@ -66,16 +66,12 @@ RenderEngine::RenderEngine(PlaybackEngine *playback_engine,
 
 	audio_cache = 0;
 	video_cache = 0;
-	if(playback_engine && playback_engine->mwindow)
-		mwindow = playback_engine->mwindow;
-	else
-		mwindow = 0;
-	show_tc = 0;
-
+	mwindow = !playback_engine ? 0 : playback_engine->mwindow;
 
 	input_lock = new Condition(1, "RenderEngine::input_lock");
 	start_lock = new Condition(1, "RenderEngine::start_lock");
 	output_lock = new Condition(1, "RenderEngine::output_lock");
+	render_active = new Condition(1,"RenderEngine::render_active");
 	interrupt_lock = new Mutex("RenderEngine::interrupt_lock");
 	first_frame_lock = new Condition(1, "RenderEngine::first_frame_lock");
 }
@@ -503,6 +499,7 @@ void RenderEngine::get_module_levels(ArrayList<double> *module_levels, int64_t p
 
 void RenderEngine::run()
 {
+	render_active->lock("RenderEngine::run");
 	start_render_threads();
 	start_lock->unlock();
 	interrupt_lock->unlock();
@@ -555,7 +552,13 @@ void RenderEngine::run()
 
 	input_lock->unlock();
 	interrupt_lock->unlock();
+	render_active->unlock();
 }
 
+void RenderEngine::wait_done()
+{
+	render_active->lock("RenderEngine::wait_done");
+	render_active->unlock();
+}