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/CommandGraph.cpp

diff --git a/src/libANGLE/renderer/vulkan/CommandGraph.cpp b/src/libANGLE/renderer/vulkan/CommandGraph.cpp
index c22e1bc..6008574 100644
--- a/src/libANGLE/renderer/vulkan/CommandGraph.cpp
+++ b/src/libANGLE/renderer/vulkan/CommandGraph.cpp
@@ -205,7 +205,7 @@
     CommandGraphNode *readingNode = readingResource->mCurrentWritingNode;
     ASSERT(readingNode);
 
-    if (hasChildlessWritingNode())
+    if (mCurrentWritingNode)
     {
         // Ensure 'readingNode' happens after the current writing node.
         CommandGraphNode::SetHappensBeforeDependency(mCurrentWritingNode, readingNode);