701 lines
25 KiB
C#
701 lines
25 KiB
C#
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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using Ryujinx.Graphics.Shader.StructuredIr;
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using Ryujinx.Graphics.Shader.Translation;
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using System;
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using System.Text;
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using static Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions.InstGenHelper;
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using static Ryujinx.Graphics.Shader.StructuredIr.InstructionInfo;
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namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
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{
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static class InstGenMemory
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{
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public static string ImageLoadOrStore(CodeGenContext context, AstOperation operation)
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{
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AstTextureOperation texOp = (AstTextureOperation)operation;
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bool isArray = (texOp.Type & SamplerType.Array) != 0;
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var texCallBuilder = new StringBuilder();
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if (texOp.Inst == Instruction.ImageAtomic)
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{
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texCallBuilder.Append((texOp.Flags & TextureFlags.AtomicMask) switch
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{
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#pragma warning disable IDE0055 // Disable formatting
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TextureFlags.Add => "imageAtomicAdd",
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TextureFlags.Minimum => "imageAtomicMin",
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TextureFlags.Maximum => "imageAtomicMax",
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TextureFlags.Increment => "imageAtomicAdd", // TODO: Clamp value.
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TextureFlags.Decrement => "imageAtomicAdd", // TODO: Clamp value.
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TextureFlags.BitwiseAnd => "imageAtomicAnd",
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TextureFlags.BitwiseOr => "imageAtomicOr",
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TextureFlags.BitwiseXor => "imageAtomicXor",
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TextureFlags.Swap => "imageAtomicExchange",
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TextureFlags.CAS => "imageAtomicCompSwap",
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_ => "imageAtomicAdd",
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#pragma warning restore IDE0055
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});
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}
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else
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{
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texCallBuilder.Append(texOp.Inst == Instruction.ImageLoad ? "imageLoad" : "imageStore");
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}
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int srcIndex = 0;
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string Src(AggregateType type)
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{
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return GetSourceExpr(context, texOp.GetSource(srcIndex++), type);
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}
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string imageName = GetImageName(context, texOp, ref srcIndex);
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texCallBuilder.Append('(');
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texCallBuilder.Append(imageName);
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int coordsCount = texOp.Type.GetDimensions();
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int pCount = coordsCount + (isArray ? 1 : 0);
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void Append(string str)
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{
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texCallBuilder.Append(", ");
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texCallBuilder.Append(str);
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}
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if (pCount > 1)
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{
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string[] elems = new string[pCount];
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for (int index = 0; index < pCount; index++)
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{
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elems[index] = Src(AggregateType.S32);
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}
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Append($"ivec{pCount}({string.Join(", ", elems)})");
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}
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else
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{
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Append(Src(AggregateType.S32));
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}
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if (texOp.Inst == Instruction.ImageStore)
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{
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AggregateType type = texOp.Format.GetComponentType();
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string[] cElems = new string[4];
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for (int index = 0; index < 4; index++)
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{
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if (srcIndex < texOp.SourcesCount)
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{
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cElems[index] = Src(type);
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}
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else
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{
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cElems[index] = type switch
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{
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AggregateType.S32 => NumberFormatter.FormatInt(0),
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AggregateType.U32 => NumberFormatter.FormatUint(0),
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_ => NumberFormatter.FormatFloat(0),
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};
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}
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}
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string prefix = type switch
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{
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AggregateType.S32 => "i",
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AggregateType.U32 => "u",
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_ => string.Empty,
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};
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Append($"{prefix}vec4({string.Join(", ", cElems)})");
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}
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if (texOp.Inst == Instruction.ImageAtomic)
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{
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AggregateType type = texOp.Format.GetComponentType();
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if ((texOp.Flags & TextureFlags.AtomicMask) == TextureFlags.CAS)
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{
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Append(Src(type)); // Compare value.
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}
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string value = (texOp.Flags & TextureFlags.AtomicMask) switch
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{
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TextureFlags.Increment => NumberFormatter.FormatInt(1, type), // TODO: Clamp value
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TextureFlags.Decrement => NumberFormatter.FormatInt(-1, type), // TODO: Clamp value
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_ => Src(type),
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};
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Append(value);
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texCallBuilder.Append(')');
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if (type != AggregateType.S32)
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{
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texCallBuilder
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.Insert(0, "int(")
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.Append(')');
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}
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}
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else
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{
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texCallBuilder.Append(')');
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if (texOp.Inst == Instruction.ImageLoad)
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{
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texCallBuilder.Append(GetMaskMultiDest(texOp.Index));
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}
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}
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return texCallBuilder.ToString();
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}
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public static string Load(CodeGenContext context, AstOperation operation)
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{
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return GenerateLoadOrStore(context, operation, isStore: false);
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}
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public static string Lod(CodeGenContext context, AstOperation operation)
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{
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AstTextureOperation texOp = (AstTextureOperation)operation;
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int coordsCount = texOp.Type.GetDimensions();
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int coordsIndex = 0;
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string samplerName = GetSamplerName(context, texOp, ref coordsIndex);
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string coordsExpr;
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if (coordsCount > 1)
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{
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string[] elems = new string[coordsCount];
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for (int index = 0; index < coordsCount; index++)
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{
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elems[index] = GetSourceExpr(context, texOp.GetSource(coordsIndex + index), AggregateType.FP32);
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}
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coordsExpr = "vec" + coordsCount + "(" + string.Join(", ", elems) + ")";
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}
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else
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{
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coordsExpr = GetSourceExpr(context, texOp.GetSource(coordsIndex), AggregateType.FP32);
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}
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return $"textureQueryLod({samplerName}, {coordsExpr}){GetMask(texOp.Index)}";
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}
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public static string Store(CodeGenContext context, AstOperation operation)
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{
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return GenerateLoadOrStore(context, operation, isStore: true);
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}
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public static string TextureSample(CodeGenContext context, AstOperation operation)
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{
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AstTextureOperation texOp = (AstTextureOperation)operation;
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bool isGather = (texOp.Flags & TextureFlags.Gather) != 0;
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bool hasDerivatives = (texOp.Flags & TextureFlags.Derivatives) != 0;
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bool intCoords = (texOp.Flags & TextureFlags.IntCoords) != 0;
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bool hasLodBias = (texOp.Flags & TextureFlags.LodBias) != 0;
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bool hasLodLevel = (texOp.Flags & TextureFlags.LodLevel) != 0;
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bool hasOffset = (texOp.Flags & TextureFlags.Offset) != 0;
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bool hasOffsets = (texOp.Flags & TextureFlags.Offsets) != 0;
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bool isArray = (texOp.Type & SamplerType.Array) != 0;
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bool isMultisample = (texOp.Type & SamplerType.Multisample) != 0;
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bool isShadow = (texOp.Type & SamplerType.Shadow) != 0;
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SamplerType type = texOp.Type & SamplerType.Mask;
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bool is2D = type == SamplerType.Texture2D;
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bool isCube = type == SamplerType.TextureCube;
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// 2D Array and Cube shadow samplers with LOD level or bias requires an extension.
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// If the extension is not supported, just remove the LOD parameter.
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if (isArray && isShadow && (is2D || isCube) && !context.HostCapabilities.SupportsTextureShadowLod)
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{
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hasLodBias = false;
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hasLodLevel = false;
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}
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// Cube shadow samplers with LOD level requires an extension.
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// If the extension is not supported, just remove the LOD level parameter.
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if (isShadow && isCube && !context.HostCapabilities.SupportsTextureShadowLod)
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{
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hasLodLevel = false;
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}
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string texCall = intCoords ? "texelFetch" : "texture";
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if (isGather)
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{
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texCall += "Gather";
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}
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else if (hasDerivatives)
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{
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texCall += "Grad";
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}
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else if (hasLodLevel && !intCoords)
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{
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texCall += "Lod";
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}
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if (hasOffset)
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{
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texCall += "Offset";
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}
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else if (hasOffsets)
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{
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texCall += "Offsets";
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}
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int srcIndex = 0;
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string Src(AggregateType type)
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{
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return GetSourceExpr(context, texOp.GetSource(srcIndex++), type);
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}
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string samplerName = GetSamplerName(context, texOp, ref srcIndex);
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texCall += "(" + samplerName;
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int coordsCount = texOp.Type.GetDimensions();
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int pCount = coordsCount;
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int arrayIndexElem = -1;
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if (isArray)
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{
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arrayIndexElem = pCount++;
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}
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// The sampler 1D shadow overload expects a
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// dummy value on the middle of the vector, who knows why...
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bool hasDummy1DShadowElem = texOp.Type == (SamplerType.Texture1D | SamplerType.Shadow);
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if (hasDummy1DShadowElem)
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{
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pCount++;
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}
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if (isShadow && !isGather)
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{
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pCount++;
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}
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// On textureGather*, the comparison value is
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// always specified as an extra argument.
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bool hasExtraCompareArg = isShadow && isGather;
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if (pCount == 5)
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{
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pCount = 4;
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hasExtraCompareArg = true;
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}
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void Append(string str)
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{
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texCall += ", " + str;
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}
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AggregateType coordType = intCoords ? AggregateType.S32 : AggregateType.FP32;
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string AssemblePVector(int count)
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{
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if (count > 1)
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{
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string[] elems = new string[count];
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for (int index = 0; index < count; index++)
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{
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if (arrayIndexElem == index)
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{
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elems[index] = Src(AggregateType.S32);
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if (!intCoords)
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{
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elems[index] = "float(" + elems[index] + ")";
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}
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}
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else if (index == 1 && hasDummy1DShadowElem)
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{
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elems[index] = NumberFormatter.FormatFloat(0);
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}
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else
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{
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elems[index] = Src(coordType);
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}
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}
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string prefix = intCoords ? "i" : string.Empty;
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return prefix + "vec" + count + "(" + string.Join(", ", elems) + ")";
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}
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else
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{
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return Src(coordType);
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}
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}
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Append(AssemblePVector(pCount));
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string AssembleDerivativesVector(int count)
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{
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if (count > 1)
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{
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string[] elems = new string[count];
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for (int index = 0; index < count; index++)
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{
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elems[index] = Src(AggregateType.FP32);
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}
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return "vec" + count + "(" + string.Join(", ", elems) + ")";
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}
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else
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{
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return Src(AggregateType.FP32);
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}
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}
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if (hasExtraCompareArg)
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{
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Append(Src(AggregateType.FP32));
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}
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if (hasDerivatives)
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{
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Append(AssembleDerivativesVector(coordsCount)); // dPdx
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Append(AssembleDerivativesVector(coordsCount)); // dPdy
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}
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if (isMultisample)
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{
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Append(Src(AggregateType.S32));
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}
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else if (hasLodLevel)
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{
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Append(Src(coordType));
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}
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string AssembleOffsetVector(int count)
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{
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if (count > 1)
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{
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string[] elems = new string[count];
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for (int index = 0; index < count; index++)
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{
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elems[index] = Src(AggregateType.S32);
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}
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return "ivec" + count + "(" + string.Join(", ", elems) + ")";
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}
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else
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{
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return Src(AggregateType.S32);
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}
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}
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if (hasOffset)
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{
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Append(AssembleOffsetVector(coordsCount));
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}
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else if (hasOffsets)
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{
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texCall += $", ivec{coordsCount}[4](";
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texCall += AssembleOffsetVector(coordsCount) + ", ";
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texCall += AssembleOffsetVector(coordsCount) + ", ";
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texCall += AssembleOffsetVector(coordsCount) + ", ";
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texCall += AssembleOffsetVector(coordsCount) + ")";
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}
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if (hasLodBias)
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{
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Append(Src(AggregateType.FP32));
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}
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// textureGather* optional extra component index,
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// not needed for shadow samplers.
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if (isGather && !isShadow)
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{
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Append(Src(AggregateType.S32));
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}
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bool colorIsVector = isGather || !isShadow;
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texCall += ")" + (colorIsVector ? GetMaskMultiDest(texOp.Index) : "");
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return texCall;
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}
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public static string TextureQuerySamples(CodeGenContext context, AstOperation operation)
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{
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AstTextureOperation texOp = (AstTextureOperation)operation;
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int srcIndex = 0;
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string samplerName = GetSamplerName(context, texOp, ref srcIndex);
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return $"textureSamples({samplerName})";
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}
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public static string TextureQuerySize(CodeGenContext context, AstOperation operation)
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{
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AstTextureOperation texOp = (AstTextureOperation)operation;
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int srcIndex = 0;
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string samplerName = GetSamplerName(context, texOp, ref srcIndex);
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if (texOp.Index == 3)
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{
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return $"textureQueryLevels({samplerName})";
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}
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else
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{
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context.Properties.Textures.TryGetValue(texOp.Binding, out TextureDefinition definition);
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bool hasLod = !definition.Type.HasFlag(SamplerType.Multisample) && (definition.Type & SamplerType.Mask) != SamplerType.TextureBuffer;
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string texCall;
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if (hasLod)
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{
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IAstNode lod = operation.GetSource(srcIndex);
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string lodExpr = GetSourceExpr(context, lod, GetSrcVarType(operation.Inst, srcIndex));
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texCall = $"textureSize({samplerName}, {lodExpr}){GetMask(texOp.Index)}";
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}
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else
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{
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texCall = $"textureSize({samplerName}){GetMask(texOp.Index)}";
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}
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return texCall;
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}
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}
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public static string GenerateLoadOrStore(CodeGenContext context, AstOperation operation, bool isStore)
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{
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StorageKind storageKind = operation.StorageKind;
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string varName;
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AggregateType varType;
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int srcIndex = 0;
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bool isStoreOrAtomic = operation.Inst == Instruction.Store || operation.Inst.IsAtomic();
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int inputsCount = isStoreOrAtomic ? operation.SourcesCount - 1 : operation.SourcesCount;
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if (operation.Inst == Instruction.AtomicCompareAndSwap)
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{
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inputsCount--;
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}
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switch (storageKind)
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{
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case StorageKind.ConstantBuffer:
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case StorageKind.StorageBuffer:
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if (operation.GetSource(srcIndex++) is not AstOperand bindingIndex || bindingIndex.Type != OperandType.Constant)
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{
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throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand.");
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}
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int binding = bindingIndex.Value;
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BufferDefinition buffer = storageKind == StorageKind.ConstantBuffer
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? context.Properties.ConstantBuffers[binding]
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: context.Properties.StorageBuffers[binding];
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if (operation.GetSource(srcIndex++) is not AstOperand fieldIndex || fieldIndex.Type != OperandType.Constant)
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{
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throw new InvalidOperationException($"Second input of {operation.Inst} with {storageKind} storage must be a constant operand.");
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}
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StructureField field = buffer.Type.Fields[fieldIndex.Value];
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varName = $"{buffer.Name}.{field.Name}";
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varType = field.Type;
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break;
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case StorageKind.LocalMemory:
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case StorageKind.SharedMemory:
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if (operation.GetSource(srcIndex++) is not AstOperand { Type: OperandType.Constant } bindingId)
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{
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throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand.");
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}
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MemoryDefinition memory = storageKind == StorageKind.LocalMemory
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? context.Properties.LocalMemories[bindingId.Value]
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: context.Properties.SharedMemories[bindingId.Value];
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varName = memory.Name;
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varType = memory.Type;
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break;
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case StorageKind.Input:
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case StorageKind.InputPerPatch:
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case StorageKind.Output:
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case StorageKind.OutputPerPatch:
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if (operation.GetSource(srcIndex++) is not AstOperand varId || varId.Type != OperandType.Constant)
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{
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throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand.");
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}
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IoVariable ioVariable = (IoVariable)varId.Value;
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bool isOutput = storageKind.IsOutput();
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bool isPerPatch = storageKind.IsPerPatch();
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int location = -1;
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int component = 0;
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if (context.Definitions.HasPerLocationInputOrOutput(ioVariable, isOutput))
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{
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if (operation.GetSource(srcIndex++) is not AstOperand vecIndex || vecIndex.Type != OperandType.Constant)
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{
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throw new InvalidOperationException($"Second input of {operation.Inst} with {storageKind} storage must be a constant operand.");
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}
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location = vecIndex.Value;
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if (operation.SourcesCount > srcIndex &&
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operation.GetSource(srcIndex) is AstOperand elemIndex &&
|
|
elemIndex.Type == OperandType.Constant &&
|
|
context.Definitions.HasPerLocationInputOrOutputComponent(ioVariable, location, elemIndex.Value, isOutput))
|
|
{
|
|
component = elemIndex.Value;
|
|
srcIndex++;
|
|
}
|
|
}
|
|
|
|
(varName, varType) = IoMap.GetGlslVariable(
|
|
context.Definitions,
|
|
context.HostCapabilities,
|
|
ioVariable,
|
|
location,
|
|
component,
|
|
isOutput,
|
|
isPerPatch);
|
|
|
|
if (IoMap.IsPerVertexBuiltIn(context.Definitions.Stage, ioVariable, isOutput))
|
|
{
|
|
// Since those exist both as input and output on geometry and tessellation shaders,
|
|
// we need the gl_in and gl_out prefixes to disambiguate.
|
|
|
|
if (storageKind == StorageKind.Input)
|
|
{
|
|
string expr = GetSourceExpr(context, operation.GetSource(srcIndex++), AggregateType.S32);
|
|
varName = $"gl_in[{expr}].{varName}";
|
|
}
|
|
else if (storageKind == StorageKind.Output)
|
|
{
|
|
string expr = GetSourceExpr(context, operation.GetSource(srcIndex++), AggregateType.S32);
|
|
varName = $"gl_out[{expr}].{varName}";
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
throw new InvalidOperationException($"Invalid storage kind {storageKind}.");
|
|
}
|
|
|
|
int firstSrcIndex = srcIndex;
|
|
|
|
for (; srcIndex < inputsCount; srcIndex++)
|
|
{
|
|
IAstNode src = operation.GetSource(srcIndex);
|
|
|
|
if ((varType & AggregateType.ElementCountMask) != 0 &&
|
|
srcIndex == inputsCount - 1 &&
|
|
src is AstOperand elementIndex &&
|
|
elementIndex.Type == OperandType.Constant)
|
|
{
|
|
varName += "." + "xyzw"[elementIndex.Value & 3];
|
|
}
|
|
else if (srcIndex == firstSrcIndex && context.Definitions.Stage == ShaderStage.TessellationControl && storageKind == StorageKind.Output)
|
|
{
|
|
// GLSL requires that for tessellation control shader outputs,
|
|
// that the index expression must be *exactly* "gl_InvocationID",
|
|
// otherwise the compilation fails.
|
|
// TODO: Get rid of this and use expression propagation to make sure we generate the correct code from IR.
|
|
varName += "[gl_InvocationID]";
|
|
}
|
|
else
|
|
{
|
|
varName += $"[{GetSourceExpr(context, src, AggregateType.S32)}]";
|
|
}
|
|
}
|
|
|
|
if (isStore)
|
|
{
|
|
varType &= AggregateType.ElementTypeMask;
|
|
varName = $"{varName} = {GetSourceExpr(context, operation.GetSource(srcIndex), varType)}";
|
|
}
|
|
|
|
return varName;
|
|
}
|
|
|
|
private static string GetSamplerName(CodeGenContext context, AstTextureOperation texOp, ref int srcIndex)
|
|
{
|
|
TextureDefinition textureDefinition = context.Properties.Textures[texOp.Binding];
|
|
string name = textureDefinition.Name;
|
|
|
|
if (textureDefinition.ArrayLength != 1)
|
|
{
|
|
name = $"{name}[{GetSourceExpr(context, texOp.GetSource(srcIndex++), AggregateType.S32)}]";
|
|
}
|
|
|
|
if (texOp.IsSeparate)
|
|
{
|
|
TextureDefinition samplerDefinition = context.Properties.Textures[texOp.SamplerBinding];
|
|
string samplerName = samplerDefinition.Name;
|
|
|
|
if (samplerDefinition.ArrayLength != 1)
|
|
{
|
|
samplerName = $"{samplerName}[{GetSourceExpr(context, texOp.GetSource(srcIndex++), AggregateType.S32)}]";
|
|
}
|
|
|
|
name = $"{texOp.Type.ToGlslSamplerType()}({name}, {samplerName})";
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
private static string GetImageName(CodeGenContext context, AstTextureOperation texOp, ref int srcIndex)
|
|
{
|
|
TextureDefinition definition = context.Properties.Images[texOp.Binding];
|
|
string name = definition.Name;
|
|
|
|
if (definition.ArrayLength != 1)
|
|
{
|
|
name = $"{name}[{GetSourceExpr(context, texOp.GetSource(srcIndex++), AggregateType.S32)}]";
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
private static string GetMask(int index)
|
|
{
|
|
return $".{"rgba".AsSpan(index, 1)}";
|
|
}
|
|
|
|
private static string GetMaskMultiDest(int mask)
|
|
{
|
|
StringBuilder swizzleBuilder = new();
|
|
swizzleBuilder.Append('.');
|
|
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
if ((mask & (1 << i)) != 0)
|
|
{
|
|
swizzleBuilder.Append("xyzw"[i]);
|
|
}
|
|
}
|
|
|
|
return swizzleBuilder.ToString();
|
|
}
|
|
}
|
|
}
|