From b46b63e06a36845175f68331edb5ddeeb34de27b Mon Sep 17 00:00:00 2001
From: gdkchan <gab.dark.100@gmail.com>
Date: Tue, 5 Jul 2022 19:58:36 -0300
Subject: Add support for alpha to coverage dithering (#3069)

* Add support for alpha to coverage dithering

* Shader cache version bump

* Fix wrong alpha register

* Ensure support buffer is cleared

* New shader specialization based approach
---
 .../Shader/GpuChannelGraphicsState.cs              | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

(limited to 'Ryujinx.Graphics.Gpu/Shader/GpuChannelGraphicsState.cs')

diff --git a/Ryujinx.Graphics.Gpu/Shader/GpuChannelGraphicsState.cs b/Ryujinx.Graphics.Gpu/Shader/GpuChannelGraphicsState.cs
index 92ec117f..fae670ea 100644
--- a/Ryujinx.Graphics.Gpu/Shader/GpuChannelGraphicsState.cs
+++ b/Ryujinx.Graphics.Gpu/Shader/GpuChannelGraphicsState.cs
@@ -30,6 +30,16 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// </summary>
         public readonly bool ViewportTransformDisable;
 
+        /// <summary>
+        /// Indicates whenever alpha-to-coverage is enabled.
+        /// </summary>
+        public readonly bool AlphaToCoverageEnable;
+
+        /// <summary>
+        /// Indicates whenever alpha-to-coverage dithering is enabled.
+        /// </summary>
+        public readonly bool AlphaToCoverageDitherEnable;
+
         /// <summary>
         /// Creates a new GPU graphics state.
         /// </summary>
@@ -37,12 +47,22 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <param name="topology">Primitive topology</param>
         /// <param name="tessellationMode">Tessellation mode</param>
         /// <param name="viewportTransformDisable">Indicates whenever the viewport transform is disabled</param>
-        public GpuChannelGraphicsState(bool earlyZForce, PrimitiveTopology topology, TessMode tessellationMode, bool viewportTransformDisable)
+        /// <param name="alphaToCoverageEnable">Indicates whenever alpha-to-coverage is enabled</param>
+        /// <param name="alphaToCoverageDitherEnable">Indicates whenever alpha-to-coverage dithering is enabled</param>
+        public GpuChannelGraphicsState(
+            bool earlyZForce,
+            PrimitiveTopology topology,
+            TessMode tessellationMode,
+            bool viewportTransformDisable,
+            bool alphaToCoverageEnable,
+            bool alphaToCoverageDitherEnable)
         {
             EarlyZForce = earlyZForce;
             Topology = topology;
             TessellationMode = tessellationMode;
             ViewportTransformDisable = viewportTransformDisable;
+            AlphaToCoverageEnable = alphaToCoverageEnable;
+            AlphaToCoverageDitherEnable = alphaToCoverageDitherEnable;
         }
     }
 }
\ No newline at end of file
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