Fix incorrect fragment origin when YNegate is enabled (#4673)

* Fix incorrect fragment origin when YNegate is enabled

* Shader cache version bump

* Do not update support buffer if shader does not read gl_FragCoord

* Pass unscaled viewport size to the support buffer

src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheGpuAccessor.cs

@@ -247,6 +247,12 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
             return _oldSpecState.GraphicsState.ViewportTransformDisable;
         }
 
+        /// <inheritdoc/>
+        public bool QueryYNegateEnabled()
+        {
+            return _oldSpecState.GraphicsState.YNegateEnabled;
+        }
+
         /// <inheritdoc/>
         public void RegisterTexture(int handle, int cbufSlot)
         {

src/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheHostStorage.cs

@@ -22,7 +22,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
         private const ushort FileFormatVersionMajor = 1;
         private const ushort FileFormatVersionMinor = 2;
         private const uint FileFormatVersionPacked = ((uint)FileFormatVersionMajor << 16) | FileFormatVersionMinor;
-        private const uint CodeGenVersion = 5266;
+        private const uint CodeGenVersion = 4675;
 
         private const string SharedTocFileName = "shared.toc";
         private const string SharedDataFileName = "shared.data";
@@ -140,6 +140,11 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
             /// </summary>
             public ShaderStage Stage;
 
+            /// <summary>
+            /// Indicates if the fragment shader accesses the fragment coordinate built-in variable.
+            /// </summary>
+            public bool UsesFragCoord;
+
             /// <summary>
             /// Indicates if the shader accesses the Instance ID built-in variable.
             /// </summary>
@@ -781,6 +786,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
                 ShaderIdentification.None,
                 0,
                 dataInfo.Stage,
+                dataInfo.UsesFragCoord,
                 dataInfo.UsesInstanceId,
                 dataInfo.UsesDrawParameters,
                 dataInfo.UsesRtLayer,
@@ -807,6 +813,7 @@ namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
                 TexturesCount = (ushort)info.Textures.Count,
                 ImagesCount = (ushort)info.Images.Count,
                 Stage = info.Stage,
+                UsesFragCoord = info.UsesFragCoord,
                 UsesInstanceId = info.UsesInstanceId,
                 UsesDrawParameters = info.UsesDrawParameters,
                 UsesRtLayer = info.UsesRtLayer,

src/Ryujinx.Graphics.Gpu/Shader/GpuAccessor.cs

@@ -113,6 +113,13 @@ namespace Ryujinx.Graphics.Gpu.Shader
             return _state.GraphicsState.AttributeTypes[location];
         }
 
+        /// <inheritdoc/>
+        public bool QueryEarlyZForce()
+        {
+            _state.SpecializationState?.RecordEarlyZForce();
+            return _state.GraphicsState.EarlyZForce;
+        }
+
         /// <inheritdoc/>
         public AttributeType QueryFragmentOutputType(int location)
         {
@@ -275,19 +282,18 @@ namespace Ryujinx.Graphics.Gpu.Shader
             return _state.TransformFeedbackDescriptors[bufferIndex].Stride;
         }
 
-        /// <inheritdoc/>
-        public bool QueryEarlyZForce()
-        {
-            _state.SpecializationState?.RecordEarlyZForce();
-            return _state.GraphicsState.EarlyZForce;
-        }
-
         /// <inheritdoc/>
         public bool QueryViewportTransformDisable()
         {
             return _state.GraphicsState.ViewportTransformDisable;
         }
 
+        /// <inheritdoc/>
+        public bool QueryYNegateEnabled()
+        {
+            return _state.GraphicsState.YNegateEnabled;
+        }
+
         /// <inheritdoc/>
         public void RegisterTexture(int handle, int cbufSlot)
         {

src/Ryujinx.Graphics.Gpu/Shader/GpuChannelGraphicsState.cs

@@ -97,6 +97,11 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// </summary>
         public bool DualSourceBlendEnable;
 
+        /// <summary>
+        /// Indicates whether Y negate of the fragment coordinates is enabled.
+        /// </summary>
+        public bool YNegateEnabled;
+
         /// <summary>
         /// Creates a new GPU graphics state.
         /// </summary>
@@ -116,7 +121,8 @@ namespace Ryujinx.Graphics.Gpu.Shader
         /// <param name="hasConstantBufferDrawParameters">Indicates that the draw is writing the base vertex, base instance and draw index to Constant Buffer 0</param>
         /// <param name="hasUnalignedStorageBuffer">Indicates that any storage buffer use is unaligned</param>
         /// <param name="fragmentOutputTypes">Type of the fragment shader outputs</param>
-        /// <param name="dualSourceBlendEnable">Type of the vertex attributes consumed by the shader</param>
+        /// <param name="dualSourceBlendEnable">Indicates whether dual source blend is enabled</param>
+        /// <param name="yNegateEnabled">Indicates whether Y negate of the fragment coordinates is enabled</param>
         public GpuChannelGraphicsState(
             bool earlyZForce,
             PrimitiveTopology topology,
@@ -134,7 +140,8 @@ namespace Ryujinx.Graphics.Gpu.Shader
             bool hasConstantBufferDrawParameters,
             bool hasUnalignedStorageBuffer,
             ref Array8<AttributeType> fragmentOutputTypes,
-            bool dualSourceBlendEnable)
+            bool dualSourceBlendEnable,
+            bool yNegateEnabled)
         {
             EarlyZForce = earlyZForce;
             Topology = topology;
@@ -153,6 +160,7 @@ namespace Ryujinx.Graphics.Gpu.Shader
             HasUnalignedStorageBuffer = hasUnalignedStorageBuffer;
             FragmentOutputTypes = fragmentOutputTypes;
             DualSourceBlendEnable = dualSourceBlendEnable;
+            YNegateEnabled = yNegateEnabled;
         }
     }
 }

src/Ryujinx.Graphics.Gpu/Shader/ShaderSpecializationState.cs

@@ -540,6 +540,11 @@ namespace Ryujinx.Graphics.Gpu.Shader
                 return false;
             }
 
+            if (graphicsState.YNegateEnabled != GraphicsState.YNegateEnabled)
+            {
+                return false;
+            }
+
             return Matches(channel, ref poolState, checkTextures, isCompute: false);
         }