metal: Make sure we have a command buffer available before trying to …

…present. This fixes a case where you render to the backbuffer, then render to a render target, set the current target back to the backbuffer, and then present without drawing anything else; in this circumstance, the Present command would never happen. Fixes Bugzilla #5011.
libsdl-org · Jul 17, 2020 · b7a4fdd · b7a4fdd
1 parent b5affd1
commit b7a4fdd
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/render/metal/SDL_render_metal.m b/src/render/metal/SDL_render_metal.m
@@ -1518,6 +1518,8 @@ - (void)dealloc
 { @autoreleasepool {
     METAL_RenderData *data = (__bridge METAL_RenderData *) renderer->driverdata;
 
+    METAL_ActivateRenderCommandEncoder(renderer, MTLLoadActionLoad, NULL, nil);
+
     if (data.mtlcmdencoder != nil) {
         [data.mtlcmdencoder endEncoding];
     }