commit b5ba549abf2ff783a1dd59d85cffbde4385c2be3
author Shahbaz Youssefi <syoussefi@chromium.org> Wed Jan 02 15:19:22 2019 -0500
committer Commit Bot <commit-bot@chromium.org> Wed Jan 09 17:36:19 2019 +0000
tree 8f6440754723e135c6a22cc4fab4ed7c8ba7a4d3
parent 73397e8e86bff666fc8191b6b30a96d35908acae

Vulkan: Shader path for texture copy when image is not initialized

This change implements staging image/texture copies when the destination
image is not yet fully initialized.  With this change, CPU readback for
glCopyTex[Sub]Image2D and glCopy[Sub]TextureCHROMIUM should happen only
if the texture formats don't allow a fragment-shader based copy.

Bug: angleproject:2958
Change-Id: I04087e14ea8fb6fbc731598c5493e44651c22c01
Reviewed-on: https://chromium-review.googlesource.com/c/1393909
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/libANGLE/renderer/vulkan/RenderbufferVk.cpp

diff --git a/src/libANGLE/renderer/vulkan/RenderbufferVk.cpp b/src/libANGLE/renderer/vulkan/RenderbufferVk.cpp
index f92b34f..c5ac794 100644
--- a/src/libANGLE/renderer/vulkan/RenderbufferVk.cpp
+++ b/src/libANGLE/renderer/vulkan/RenderbufferVk.cpp
@@ -70,7 +70,7 @@
             (isDepthOrStencilFormat ? VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT : 0);
 
         gl::Extents extents(static_cast<int>(width), static_cast<int>(height), 1);
-        ANGLE_TRY(mImage.init(contextVk, gl::TextureType::_2D, extents, vkFormat, 1, usage, 1));
+        ANGLE_TRY(mImage.init(contextVk, gl::TextureType::_2D, extents, vkFormat, 1, usage, 1, 1));
 
         VkMemoryPropertyFlags flags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
         ANGLE_TRY(mImage.initMemory(contextVk, renderer->getMemoryProperties(), flags));