From e65effcb05c40247fb717b3c2409abce7ffa10fc Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Thu, 23 May 2024 01:05:32 -0300
Subject: Workaround AMD bug on logic op with float framebuffer (#6852)

* Workaround AMD bug on logic op with float framebuffer

* Format whitespace

* Update comment
---
 src/Ryujinx.Graphics.Vulkan/PipelineState.cs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/Ryujinx.Graphics.Vulkan/PipelineState.cs')

diff --git a/src/Ryujinx.Graphics.Vulkan/PipelineState.cs b/src/Ryujinx.Graphics.Vulkan/PipelineState.cs
index 49c12b37..21160858 100644
--- a/src/Ryujinx.Graphics.Vulkan/PipelineState.cs
+++ b/src/Ryujinx.Graphics.Vulkan/PipelineState.cs
@@ -560,10 +560,14 @@ namespace Ryujinx.Graphics.Vulkan
                     }
                 }
 
+                // AMD has a bug where it enables logical operations even for float formats,
+                // so we need to force disable them here.
+                bool logicOpEnable = LogicOpEnable && (gd.Vendor != Vendor.Amd || Internal.LogicOpsAllowed);
+
                 var colorBlendState = new PipelineColorBlendStateCreateInfo
                 {
                     SType = StructureType.PipelineColorBlendStateCreateInfo,
-                    LogicOpEnable = LogicOpEnable,
+                    LogicOpEnable = logicOpEnable,
                     LogicOp = LogicOp,
                     AttachmentCount = ColorBlendAttachmentStateCount,
                     PAttachments = pColorBlendAttachmentState,
-- 
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