Fix the source pipeline stage in the vkCmdPipelineBarrier call for the Compute Shader -> Transfer stage (#513)

Icohedron · web-flow · commit 74c7f49a6d53 · 2025-11-27T09:58:30.000-08:00
Fixes #329 and #328 The source pipeline stage being incorrect was causing the windows-amd machine to read 0s from the output buffer for image resources.
diff --git a/lib/API/VK/Device.cpp b/lib/API/VK/Device.cpp
@@ -1647,7 +1647,7 @@ class VKDevice : public offloadtest::Device {
 
       for (auto &ResRef : R.ResourceRefs) {
         ImageBarrier.image = ResRef.Image.Image;
-        vkCmdPipelineBarrier(IS.CmdBuffer, VK_PIPELINE_STAGE_HOST_BIT,
+        vkCmdPipelineBarrier(IS.CmdBuffer, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT,
                              VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0,
                              nullptr, 1, &ImageBarrier);
       }

Original file line number	Diff line number	Diff line change
`@@ -1647,7 +1647,7 @@ class VKDevice : public offloadtest::Device {`
`1647`	`1647`
`1648`	`1648`	`for (auto &ResRef : R.ResourceRefs) {`
`1649`	`1649`	`ImageBarrier.image = ResRef.Image.Image;`
`1650`		`- vkCmdPipelineBarrier(IS.CmdBuffer, VK_PIPELINE_STAGE_HOST_BIT,`
	`1650`	`+ vkCmdPipelineBarrier(IS.CmdBuffer, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT,`
`1651`	`1651`	`VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0,`
`1652`	`1652`	`nullptr, 1, &ImageBarrier);`
`1653`	`1653`	`}`