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GS/VK: Fix for broken feedback transitions on Windows RDNA2.

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Co-authored-by: TheLastRar
This commit is contained in:
TJnotJT
2026-06-03 03:26:24 +02:00
committed by lightningterror
co-authored by TheLastRar
parent bbcd5ec25e
commit 7c255bd58d
1 changed files with 14 additions and 0 deletions
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pcsx2/GS/Renderers/Vulkan/GSTextureVK.cpp
+14
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@@ -609,6 +609,20 @@ void GSTextureVK::TransitionToLayout(VkCommandBuffer command_buffer, Layout new_
void GSTextureVK::TransitionSubresourcesToLayout(
VkCommandBuffer command_buffer, int start_level, int num_levels, Layout old_layout, Layout new_layout)
{
// Windows RDNA2 drivers don't always correctly transition the layout(?) when ROV is involved.
// ReadWriteImage -> Feedback transitions are broken.
// ReadWriteImage -> Read only layout -> Feedback transitions are broken.
// ReadWriteImage -> General layout -> Feedback transitions are broken.
// ReadWriteImage -> Write only layout -> Feedback transitions works fine.
// Not every broken transition gives broken rendering, the Shadow of the colossus eagle dump is fine after the 1st frame.
// Transition to a write only layout using an extra barrier, then to feedback fixes this issue.
if (old_layout == Layout::ReadWriteImage && new_layout != Layout::ColorAttachment && new_layout != Layout::ReadWriteImage)
{
GL_INS("VK: Doing extra transition for broken RDNA2 feedback transitions");
TransitionSubresourcesToLayout(command_buffer, 0, num_levels, old_layout, Layout::ColorAttachment);
old_layout = Layout::ColorAttachment;
}
VkImageAspectFlags aspect;
if (IsDepthStencil())
{