From ef08738330d1df245b9752fe75153e8b9be0c042 Mon Sep 17 00:00:00 2001
From: Dzmitry Malyshau <kvark@fastmail.com>
Date: Thu, 2 Dec 2021 11:31:29 -0500
Subject: [PATCH] Insert texture barrier after initializing a texture

---
 wgpu-core/src/device/queue.rs | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/wgpu-core/src/device/queue.rs b/wgpu-core/src/device/queue.rs
index 11ab48e369..2cfe984f30 100644
--- a/wgpu-core/src/device/queue.rs
+++ b/wgpu-core/src/device/queue.rs
@@ -553,8 +553,21 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
                     encoder.copy_buffer_to_texture(
                         &device.zero_buffer,
                         dst_raw,
-                        zero_buffer_copy_regions.into_iter(),
+                        zero_buffer_copy_regions.iter().cloned(),
                     );
+                    encoder.transition_textures(zero_buffer_copy_regions.iter().map(|copy| {
+                        hal::TextureBarrier {
+                            texture: dst_raw,
+                            range: wgt::ImageSubresourceRange {
+                                aspect: wgt::TextureAspect::All,
+                                base_mip_level: copy.texture_base.mip_level,
+                                mip_level_count: NonZeroU32::new(1),
+                                base_array_layer: copy.texture_base.array_layer,
+                                array_layer_count: NonZeroU32::new(1),
+                            },
+                            usage: hal::TextureUses::COPY_DST..hal::TextureUses::COPY_DST,
+                        }
+                    }));
                 }
                 encoder.copy_buffer_to_texture(&stage.buffer, dst_raw, regions);
             }