Remove resources ONLY when needed inside wgpu and not in user land (#4782)

Author: gents83

tests/tests/zero_init_texture_after_discard.rs

@@ -13,8 +13,11 @@ static DISCARDING_COLOR_TARGET_RESETS_TEXTURE_INIT_STATE_CHECK_VISIBLE_ON_COPY_A
         let mut case = TestCase::new(&mut ctx, TextureFormat::Rgba8UnormSrgb);
         case.create_command_encoder();
         case.discard();
+        case.submit_command_encoder();
+
+        case.create_command_encoder();
         case.copy_texture_to_buffer();
-        case.submit_command_encoder_and_wait();
+        case.submit_command_encoder();
 
         case.assert_buffers_are_zero();
     });
@@ -28,7 +31,7 @@ static DISCARDING_COLOR_TARGET_RESETS_TEXTURE_INIT_STATE_CHECK_VISIBLE_ON_COPY_I
         case.create_command_encoder();
         case.discard();
         case.copy_texture_to_buffer();
-        case.submit_command_encoder_and_wait();
+        case.submit_command_encoder();
 
         case.assert_buffers_are_zero();
     });
@@ -55,7 +58,7 @@ static DISCARDING_DEPTH_TARGET_RESETS_TEXTURE_INIT_STATE_CHECK_VISIBLE_ON_COPY_I
             case.create_command_encoder();
             case.discard();
             case.copy_texture_to_buffer();
-            case.submit_command_encoder_and_wait();
+            case.submit_command_encoder();
 
             case.assert_buffers_are_zero();
         }
@@ -70,13 +73,7 @@ static DISCARDING_EITHER_DEPTH_OR_STENCIL_ASPECT_TEST: GpuTestConfiguration =
                     DownlevelFlags::DEPTH_TEXTURE_AND_BUFFER_COPIES
                         | DownlevelFlags::COMPUTE_SHADERS,
                 )
-                .limits(Limits::downlevel_defaults())
-                // https://github.com/gfx-rs/wgpu/issues/4740
-                .expect_fail(
-                    FailureCase::backend_adapter(Backends::VULKAN, "llvmpipe")
-                        .panic("texture was not fully cleared")
-                        .flaky(),
-                ),
+                .limits(Limits::downlevel_defaults()),
         )
         .run_sync(|mut ctx| {
             for format in [
@@ -89,9 +86,15 @@ static DISCARDING_EITHER_DEPTH_OR_STENCIL_ASPECT_TEST: GpuTestConfiguration =
                 let mut case = TestCase::new(&mut ctx, format);
                 case.create_command_encoder();
                 case.discard_depth();
+                case.submit_command_encoder();
+
+                case.create_command_encoder();
                 case.discard_stencil();
+                case.submit_command_encoder();
+
+                case.create_command_encoder();
                 case.copy_texture_to_buffer();
-                case.submit_command_encoder_and_wait();
+                case.submit_command_encoder();
 
                 case.assert_buffers_are_zero();
             }
@@ -209,11 +212,10 @@ impl<'ctx> TestCase<'ctx> {
         )
     }
 
-    pub fn submit_command_encoder_and_wait(&mut self) {
+    pub fn submit_command_encoder(&mut self) {
         self.ctx
             .queue
             .submit([self.encoder.take().unwrap().finish()]);
-        self.ctx.device.poll(MaintainBase::Wait);
     }
 
     pub fn discard(&mut self) {

wgpu-core/src/device/global.rs

@@ -2004,7 +2004,7 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
                 // Wait for all work to finish before configuring the surface.
                 let fence = device.fence.read();
                 let fence = fence.as_ref().unwrap();
-                match device.maintain(hub, fence, wgt::Maintain::Wait) {
+                match device.maintain(fence, wgt::Maintain::Wait) {
                     Ok((closures, _)) => {
                         user_callbacks = closures;
                     }
@@ -2074,7 +2074,6 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
             return Err(InvalidDevice);
         }
         device.lock_life().triage_suspected(
-            hub,
             &device.trackers,
             #[cfg(feature = "trace")]
             None,
@@ -2109,7 +2108,7 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
                 .map_err(|_| DeviceError::Invalid)?;
             let fence = device.fence.read();
             let fence = fence.as_ref().unwrap();
-            device.maintain(hub, fence, maintain)?
+            device.maintain(fence, maintain)?
         };
 
         closures.fire();
@@ -2143,7 +2142,7 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
                 };
                 let fence = device.fence.read();
                 let fence = fence.as_ref().unwrap();
-                let (cbs, queue_empty) = device.maintain(hub, fence, maintain)?;
+                let (cbs, queue_empty) = device.maintain(fence, maintain)?;
                 all_queue_empty = all_queue_empty && queue_empty;
 
                 closures.extend(cbs);