Changed rendering to use a new shader included in OBS Studio 0.14.0

to convert pre-multiplied alpha to straight alpha

Author: OsirisNL

obs-browser/browser-source-base.cpp

@@ -69,12 +69,10 @@ void BrowserSource::Impl::RenderCurrentTexture(gs_effect_t *effect)
 
 	if (activeTexture != nullptr) {
 		gs_reset_blend_state();
-		gs_blend_function(GS_BLEND_DSTALPHA, GS_BLEND_INVSRCALPHA);
-		gs_effect_set_texture(
-				gs_effect_get_param_by_name(effect, "image"),
-				activeTexture);
-		gs_draw_sprite(activeTexture, 0, parent->GetWidth(), 
-				parent->GetHeight());
+
+		while (gs_effect_loop(obs_get_base_effect(OBS_EFFECT_PREMULTIPLIED_ALPHA), "Draw"))
+			obs_source_draw(activeTexture, 0, 0, 0, 0, false);
+
 		gs_reset_blend_state();
 	}
 

obs-browser/main-source.cpp

@@ -211,10 +211,7 @@ create_browser_source_info()
 	browser_source_info.id = "browser_source";
 	browser_source_info.type = OBS_SOURCE_TYPE_INPUT;
 	browser_source_info.output_flags = OBS_SOURCE_VIDEO |
-			OBS_SOURCE_INTERACTION | OBS_SOURCE_DO_NOT_DUPLICATE;
-#ifdef __APPLE__
-	browser_source_info.output_flags |= OBS_SOURCE_CUSTOM_DRAW;
-#endif
+			OBS_SOURCE_INTERACTION | OBS_SOURCE_DO_NOT_DUPLICATE | OBS_SOURCE_CUSTOM_DRAW;
 	// interaction
 	browser_source_info.mouse_click = browser_source_mouse_click;
 	browser_source_info.mouse_move = browser_source_mouse_move;