1 files changed, 202 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheGpuAccessor.cs b/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheGpuAccessor.cs
new file mode 100644
index 00000000..b1c04eac
--- /dev/null
+++ b/Ryujinx.Graphics.Gpu/Shader/DiskCache/DiskCacheGpuAccessor.cs
@@ -0,0 +1,202 @@
+using Ryujinx.Common.Logging;
+using Ryujinx.Graphics.Gpu.Image;
+using Ryujinx.Graphics.Shader;
+using System;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Graphics.Gpu.Shader.DiskCache
+{
+    /// <summary>
+    /// Represents a GPU state and memory accessor.
+    /// </summary>
+    class DiskCacheGpuAccessor : GpuAccessorBase, IGpuAccessor
+    {
+        private readonly ReadOnlyMemory<byte> _data;
+        private readonly ReadOnlyMemory<byte> _cb1Data;
+        private readonly ShaderSpecializationState _oldSpecState;
+        private readonly ShaderSpecializationState _newSpecState;
+        private readonly int _stageIndex;
+        private ResourceCounts _resourceCounts;
+
+        /// <summary>
+        /// Creates a new instance of the cached GPU state accessor for shader translation.
+        /// </summary>
+        /// <param name="context">GPU context</param>
+        /// <param name="data">The data of the shader</param>
+        /// <param name="cb1Data">The constant buffer 1 data of the shader</param>
+        /// <param name="oldSpecState">Shader specialization state of the cached shader</param>
+        /// <param name="newSpecState">Shader specialization state of the recompiled shader</param>
+        /// <param name="stageIndex">Shader stage index</param>
+        public DiskCacheGpuAccessor(
+            GpuContext context,
+            ReadOnlyMemory<byte> data,
+            ReadOnlyMemory<byte> cb1Data,
+            ShaderSpecializationState oldSpecState,
+            ShaderSpecializationState newSpecState,
+            ResourceCounts counts,
+            int stageIndex) : base(context)
+        {
+            _data = data;
+            _cb1Data = cb1Data;
+            _oldSpecState = oldSpecState;
+            _newSpecState = newSpecState;
+            _stageIndex = stageIndex;
+            _resourceCounts = counts;
+        }
+
+        /// <inheritdoc/>
+        public uint ConstantBuffer1Read(int offset)
+        {
+            if (offset + sizeof(uint) > _cb1Data.Length)
+            {
+                throw new DiskCacheLoadException(DiskCacheLoadResult.InvalidCb1DataLength);
+            }
+
+            return MemoryMarshal.Cast<byte, uint>(_cb1Data.Span.Slice(offset))[0];
+        }
+
+        /// <inheritdoc/>
+        public void Log(string message)
+        {
+            Logger.Warning?.Print(LogClass.Gpu, $"Shader translator: {message}");
+        }
+
+        /// <inheritdoc/>
+        public ReadOnlySpan<ulong> GetCode(ulong address, int minimumSize)
+        {
+            return MemoryMarshal.Cast<byte, ulong>(_data.Span.Slice((int)address));
+        }
+
+        /// <inheritdoc/>
+        public int QueryBindingConstantBuffer(int index)
+        {
+            return _resourceCounts.UniformBuffersCount++;
+        }
+
+        /// <inheritdoc/>
+        public int QueryBindingStorageBuffer(int index)
+        {
+            return _resourceCounts.StorageBuffersCount++;
+        }
+
+        /// <inheritdoc/>
+        public int QueryBindingTexture(int index)
+        {
+            return _resourceCounts.TexturesCount++;
+        }
+
+        /// <inheritdoc/>
+        public int QueryBindingImage(int index)
+        {
+            return _resourceCounts.ImagesCount++;
+        }
+
+        /// <inheritdoc/>
+        public int QueryComputeLocalSizeX() => _oldSpecState.ComputeState.LocalSizeX;
+
+        /// <inheritdoc/>
+        public int QueryComputeLocalSizeY() => _oldSpecState.ComputeState.LocalSizeY;
+
+        /// <inheritdoc/>
+        public int QueryComputeLocalSizeZ() => _oldSpecState.ComputeState.LocalSizeZ;
+
+        /// <inheritdoc/>
+        public int QueryComputeLocalMemorySize() => _oldSpecState.ComputeState.LocalMemorySize;
+
+        /// <inheritdoc/>
+        public int QueryComputeSharedMemorySize() => _oldSpecState.ComputeState.SharedMemorySize;
+
+        /// <inheritdoc/>
+        public uint QueryConstantBufferUse()
+        {
+            _newSpecState.RecordConstantBufferUse(_stageIndex, _oldSpecState.ConstantBufferUse[_stageIndex]);
+            return _oldSpecState.ConstantBufferUse[_stageIndex];
+        }
+
+        /// <inheritdoc/>
+        public InputTopology QueryPrimitiveTopology()
+        {
+            _newSpecState.RecordPrimitiveTopology();
+            return ConvertToInputTopology(_oldSpecState.GraphicsState.Topology, _oldSpecState.GraphicsState.TessellationMode);
+        }
+
+        /// <inheritdoc/>
+        public bool QueryTessCw()
+        {
+            return _oldSpecState.GraphicsState.TessellationMode.UnpackCw();
+        }
+
+        /// <inheritdoc/>
+        public TessPatchType QueryTessPatchType()
+        {
+            return _oldSpecState.GraphicsState.TessellationMode.UnpackPatchType();
+        }
+
+        /// <inheritdoc/>
+        public TessSpacing QueryTessSpacing()
+        {
+            return _oldSpecState.GraphicsState.TessellationMode.UnpackSpacing();
+        }
+
+        /// <inheritdoc/>
+        public TextureFormat QueryTextureFormat(int handle, int cbufSlot)
+        {
+            _newSpecState.RecordTextureFormat(_stageIndex, handle, cbufSlot);
+            (uint format, bool formatSrgb) = _oldSpecState.GetFormat(_stageIndex, handle, cbufSlot);
+            return ConvertToTextureFormat(format, formatSrgb);
+        }
+
+        /// <inheritdoc/>
+        public SamplerType QuerySamplerType(int handle, int cbufSlot)
+        {
+            _newSpecState.RecordTextureSamplerType(_stageIndex, handle, cbufSlot);
+            return _oldSpecState.GetTextureTarget(_stageIndex, handle, cbufSlot).ConvertSamplerType();
+        }
+
+        /// <inheritdoc/>
+        public bool QueryTextureCoordNormalized(int handle, int cbufSlot)
+        {
+            _newSpecState.RecordTextureCoordNormalized(_stageIndex, handle, cbufSlot);
+            return _oldSpecState.GetCoordNormalized(_stageIndex, handle, cbufSlot);
+        }
+
+        /// <inheritdoc/>
+        public bool QueryTransformFeedbackEnabled()
+        {
+            return _oldSpecState.TransformFeedbackDescriptors != null;
+        }
+
+        /// <inheritdoc/>
+        public ReadOnlySpan<byte> QueryTransformFeedbackVaryingLocations(int bufferIndex)
+        {
+            return _oldSpecState.TransformFeedbackDescriptors[bufferIndex].AsSpan();
+        }
+
+        /// <inheritdoc/>
+        public int QueryTransformFeedbackStride(int bufferIndex)
+        {
+            return _oldSpecState.TransformFeedbackDescriptors[bufferIndex].Stride;
+        }
+
+        /// <inheritdoc/>
+        public bool QueryEarlyZForce()
+        {
+            _newSpecState.RecordEarlyZForce();
+            return _oldSpecState.GraphicsState.EarlyZForce;
+        }
+
+        /// <inheritdoc/>
+        public void RegisterTexture(int handle, int cbufSlot)
+        {
+            if (!_oldSpecState.TextureRegistered(_stageIndex, handle, cbufSlot))
+            {
+                throw new DiskCacheLoadException(DiskCacheLoadResult.MissingTextureDescriptor);
+            }
+
+            (uint format, bool formatSrgb) = _oldSpecState.GetFormat(_stageIndex, handle, cbufSlot);
+            TextureTarget target = _oldSpecState.GetTextureTarget(_stageIndex, handle, cbufSlot);
+            bool coordNormalized = _oldSpecState.GetCoordNormalized(_stageIndex, handle, cbufSlot);
+            _newSpecState.RegisterTexture(_stageIndex, handle, cbufSlot, format, formatSrgb, target, coordNormalized);
+        }
+    }
+}