mirror of
https://github.com/GreemDev/Ryujinx
synced 2024-11-29 21:12:33 +01:00
8d9d508dc7
* Experimental (GLSL, forced) * SPIR-V attempt * Add capability * Fix pCount == 1 on glsl * Fix typo
879 lines
No EOL
32 KiB
C#
879 lines
No EOL
32 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 isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
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// TODO: Bindless texture support. For now we just return 0/do nothing.
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if (isBindless)
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{
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switch (texOp.Inst)
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{
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case Instruction.ImageStore:
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return "// imageStore(bindless)";
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case Instruction.ImageLoad:
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AggregateType componentType = texOp.Format.GetComponentType();
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NumberFormatter.TryFormat(0, componentType, out string imageConst);
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AggregateType outputType = texOp.GetVectorType(componentType);
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if ((outputType & AggregateType.ElementCountMask) != 0)
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{
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return $"{Declarations.GetVarTypeName(context, outputType, precise: false)}({imageConst})";
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}
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return imageConst;
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default:
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return NumberFormatter.FormatInt(0);
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}
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}
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bool isArray = (texOp.Type & SamplerType.Array) != 0;
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bool isIndexed = (texOp.Type & SamplerType.Indexed) != 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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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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});
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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 = isBindless ? 1 : 0;
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string Src(AggregateType type)
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{
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return GetSoureExpr(context, texOp.GetSource(srcIndex++), type);
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}
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string indexExpr = null;
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if (isIndexed)
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{
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indexExpr = Src(AggregateType.S32);
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}
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string imageName = OperandManager.GetImageName(context.Config.Stage, texOp, indexExpr);
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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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string ApplyScaling(string vector)
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{
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if (context.Config.Stage.SupportsRenderScale() &&
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texOp.Inst == Instruction.ImageLoad &&
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!isBindless &&
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!isIndexed)
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{
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// Image scales start after texture ones.
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int scaleIndex = context.Config.GetTextureDescriptors().Length + context.Config.FindImageDescriptorIndex(texOp);
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if (pCount == 3 && isArray)
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{
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// The array index is not scaled, just x and y.
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vector = $"ivec3(Helper_TexelFetchScale(({vector}).xy, {scaleIndex}), ({vector}).z)";
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}
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else if (pCount == 2 && !isArray)
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{
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vector = $"Helper_TexelFetchScale({vector}, {scaleIndex})";
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}
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}
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return vector;
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}
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if (pCount > 1)
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{
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string[] elems = new string[pCount];
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for (int index = 0; index < pCount; index++)
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{
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elems[index] = Src(AggregateType.S32);
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}
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Append(ApplyScaling($"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 LoadAttribute(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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IAstNode src3 = operation.GetSource(2);
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if (!(src1 is AstOperand baseAttr) || baseAttr.Type != OperandType.Constant)
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{
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throw new InvalidOperationException($"First input of {nameof(Instruction.LoadAttribute)} must be a constant operand.");
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}
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string indexExpr = GetSoureExpr(context, src3, GetSrcVarType(operation.Inst, 2));
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if (src2 is AstOperand operand && operand.Type == OperandType.Constant)
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{
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int attrOffset = baseAttr.Value + (operand.Value << 2);
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return OperandManager.GetAttributeName(context, attrOffset, perPatch: false, isOutAttr: false, indexExpr);
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}
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else
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{
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string attrExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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attrExpr = Enclose(attrExpr, src2, Instruction.ShiftRightS32, isLhs: true);
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return OperandManager.GetAttributeName(attrExpr, context.Config, isOutAttr: false, indexExpr);
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}
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}
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public static string LoadConstant(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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offsetExpr = Enclose(offsetExpr, src2, Instruction.ShiftRightS32, isLhs: true);
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var config = context.Config;
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bool indexElement = !config.GpuAccessor.QueryHostHasVectorIndexingBug();
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if (src1 is AstOperand operand && operand.Type == OperandType.Constant)
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{
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bool cbIndexable = config.UsedFeatures.HasFlag(Translation.FeatureFlags.CbIndexing);
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return OperandManager.GetConstantBufferName(operand.Value, offsetExpr, config.Stage, cbIndexable, indexElement);
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}
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else
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{
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string slotExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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return OperandManager.GetConstantBufferName(slotExpr, offsetExpr, config.Stage, indexElement);
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}
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}
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public static string LoadLocal(CodeGenContext context, AstOperation operation)
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{
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return LoadLocalOrShared(context, operation, DefaultNames.LocalMemoryName);
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}
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public static string LoadShared(CodeGenContext context, AstOperation operation)
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{
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return LoadLocalOrShared(context, operation, DefaultNames.SharedMemoryName);
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}
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private static string LoadLocalOrShared(CodeGenContext context, AstOperation operation, string arrayName)
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{
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IAstNode src1 = operation.GetSource(0);
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string offsetExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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return $"{arrayName}[{offsetExpr}]";
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}
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public static string LoadStorage(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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string indexExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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return GetStorageBufferAccessor(indexExpr, offsetExpr, context.Config.Stage);
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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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bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
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// TODO: Bindless texture support. For now we just return 0.
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if (isBindless)
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{
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return NumberFormatter.FormatFloat(0);
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}
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bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0;
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string indexExpr = null;
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if (isIndexed)
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{
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indexExpr = GetSoureExpr(context, texOp.GetSource(0), AggregateType.S32);
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}
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string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
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int coordsIndex = isBindless || isIndexed ? 1 : 0;
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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] = GetSoureExpr(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 = GetSoureExpr(context, texOp.GetSource(coordsIndex), AggregateType.FP32);
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}
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return $"textureQueryLod({samplerName}, {coordsExpr}){GetMask(texOp.Index)}";
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}
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public static string StoreAttribute(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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IAstNode src3 = operation.GetSource(2);
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if (!(src1 is AstOperand baseAttr) || baseAttr.Type != OperandType.Constant)
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{
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throw new InvalidOperationException($"First input of {nameof(Instruction.StoreAttribute)} must be a constant operand.");
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}
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string attrName;
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if (src2 is AstOperand operand && operand.Type == OperandType.Constant)
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{
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int attrOffset = baseAttr.Value + (operand.Value << 2);
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attrName = OperandManager.GetAttributeName(context, attrOffset, perPatch: false, isOutAttr: true);
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}
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else
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{
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string attrExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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attrExpr = Enclose(attrExpr, src2, Instruction.ShiftRightS32, isLhs: true);
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attrName = OperandManager.GetAttributeName(attrExpr, context.Config, isOutAttr: true);
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}
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string value = GetSoureExpr(context, src3, GetSrcVarType(operation.Inst, 2));
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return $"{attrName} = {value}";
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}
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public static string StoreLocal(CodeGenContext context, AstOperation operation)
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{
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return StoreLocalOrShared(context, operation, DefaultNames.LocalMemoryName);
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}
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public static string StoreShared(CodeGenContext context, AstOperation operation)
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{
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return StoreLocalOrShared(context, operation, DefaultNames.SharedMemoryName);
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}
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private static string StoreLocalOrShared(CodeGenContext context, AstOperation operation, string arrayName)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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string offsetExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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AggregateType srcType = OperandManager.GetNodeDestType(context, src2);
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string src = TypeConversion.ReinterpretCast(context, src2, srcType, AggregateType.U32);
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return $"{arrayName}[{offsetExpr}] = {src}";
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}
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public static string StoreShared16(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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string offsetExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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AggregateType srcType = OperandManager.GetNodeDestType(context, src2);
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string src = TypeConversion.ReinterpretCast(context, src2, srcType, AggregateType.U32);
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return $"{HelperFunctionNames.StoreShared16}({offsetExpr}, {src})";
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}
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public static string StoreShared8(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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string offsetExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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AggregateType srcType = OperandManager.GetNodeDestType(context, src2);
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string src = TypeConversion.ReinterpretCast(context, src2, srcType, AggregateType.U32);
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return $"{HelperFunctionNames.StoreShared8}({offsetExpr}, {src})";
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}
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public static string StoreStorage(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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IAstNode src3 = operation.GetSource(2);
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string indexExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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AggregateType srcType = OperandManager.GetNodeDestType(context, src3);
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string src = TypeConversion.ReinterpretCast(context, src3, srcType, AggregateType.U32);
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string sb = GetStorageBufferAccessor(indexExpr, offsetExpr, context.Config.Stage);
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return $"{sb} = {src}";
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}
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public static string StoreStorage16(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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IAstNode src3 = operation.GetSource(2);
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string indexExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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AggregateType srcType = OperandManager.GetNodeDestType(context, src3);
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string src = TypeConversion.ReinterpretCast(context, src3, srcType, AggregateType.U32);
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string sb = GetStorageBufferAccessor(indexExpr, offsetExpr, context.Config.Stage);
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return $"{HelperFunctionNames.StoreStorage16}({indexExpr}, {offsetExpr}, {src})";
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}
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public static string StoreStorage8(CodeGenContext context, AstOperation operation)
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{
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IAstNode src1 = operation.GetSource(0);
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IAstNode src2 = operation.GetSource(1);
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IAstNode src3 = operation.GetSource(2);
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string indexExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
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string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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AggregateType srcType = OperandManager.GetNodeDestType(context, src3);
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string src = TypeConversion.ReinterpretCast(context, src3, srcType, AggregateType.U32);
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string sb = GetStorageBufferAccessor(indexExpr, offsetExpr, context.Config.Stage);
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return $"{HelperFunctionNames.StoreStorage8}({indexExpr}, {offsetExpr}, {src})";
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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 isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
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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 isIndexed = (texOp.Type & SamplerType.Indexed) != 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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bool colorIsVector = isGather || !isShadow;
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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.
|
|
// If the extension is not supported, just remove the LOD parameter.
|
|
if (isArray && isShadow && (is2D || isCube) && !context.Config.GpuAccessor.QueryHostSupportsTextureShadowLod())
|
|
{
|
|
hasLodBias = false;
|
|
hasLodLevel = false;
|
|
}
|
|
|
|
// Cube shadow samplers with LOD level requires an extension.
|
|
// If the extension is not supported, just remove the LOD level parameter.
|
|
if (isShadow && isCube && !context.Config.GpuAccessor.QueryHostSupportsTextureShadowLod())
|
|
{
|
|
hasLodLevel = false;
|
|
}
|
|
|
|
// TODO: Bindless texture support. For now we just return 0.
|
|
if (isBindless)
|
|
{
|
|
string scalarValue = NumberFormatter.FormatFloat(0);
|
|
|
|
if (colorIsVector)
|
|
{
|
|
AggregateType outputType = texOp.GetVectorType(AggregateType.FP32);
|
|
|
|
if ((outputType & AggregateType.ElementCountMask) != 0)
|
|
{
|
|
return $"{Declarations.GetVarTypeName(context, outputType, precise: false)}({scalarValue})";
|
|
}
|
|
}
|
|
|
|
return scalarValue;
|
|
}
|
|
|
|
string texCall = intCoords ? "texelFetch" : "texture";
|
|
|
|
if (isGather)
|
|
{
|
|
texCall += "Gather";
|
|
}
|
|
else if (hasDerivatives)
|
|
{
|
|
texCall += "Grad";
|
|
}
|
|
else if (hasLodLevel && !intCoords)
|
|
{
|
|
texCall += "Lod";
|
|
}
|
|
|
|
if (hasOffset)
|
|
{
|
|
texCall += "Offset";
|
|
}
|
|
else if (hasOffsets)
|
|
{
|
|
texCall += "Offsets";
|
|
}
|
|
|
|
int srcIndex = isBindless ? 1 : 0;
|
|
|
|
string Src(AggregateType type)
|
|
{
|
|
return GetSoureExpr(context, texOp.GetSource(srcIndex++), type);
|
|
}
|
|
|
|
string indexExpr = null;
|
|
|
|
if (isIndexed)
|
|
{
|
|
indexExpr = Src(AggregateType.S32);
|
|
}
|
|
|
|
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
|
|
|
|
texCall += "(" + samplerName;
|
|
|
|
int coordsCount = texOp.Type.GetDimensions();
|
|
|
|
int pCount = coordsCount;
|
|
|
|
int arrayIndexElem = -1;
|
|
|
|
if (isArray)
|
|
{
|
|
arrayIndexElem = pCount++;
|
|
}
|
|
|
|
// The sampler 1D shadow overload expects a
|
|
// dummy value on the middle of the vector, who knows why...
|
|
bool hasDummy1DShadowElem = texOp.Type == (SamplerType.Texture1D | SamplerType.Shadow);
|
|
|
|
if (hasDummy1DShadowElem)
|
|
{
|
|
pCount++;
|
|
}
|
|
|
|
if (isShadow && !isGather)
|
|
{
|
|
pCount++;
|
|
}
|
|
|
|
// On textureGather*, the comparison value is
|
|
// always specified as an extra argument.
|
|
bool hasExtraCompareArg = isShadow && isGather;
|
|
|
|
if (pCount == 5)
|
|
{
|
|
pCount = 4;
|
|
|
|
hasExtraCompareArg = true;
|
|
}
|
|
|
|
void Append(string str)
|
|
{
|
|
texCall += ", " + str;
|
|
}
|
|
|
|
AggregateType coordType = intCoords ? AggregateType.S32 : AggregateType.FP32;
|
|
|
|
string AssemblePVector(int count)
|
|
{
|
|
if (count > 1)
|
|
{
|
|
string[] elems = new string[count];
|
|
|
|
for (int index = 0; index < count; index++)
|
|
{
|
|
if (arrayIndexElem == index)
|
|
{
|
|
elems[index] = Src(AggregateType.S32);
|
|
|
|
if (!intCoords)
|
|
{
|
|
elems[index] = "float(" + elems[index] + ")";
|
|
}
|
|
}
|
|
else if (index == 1 && hasDummy1DShadowElem)
|
|
{
|
|
elems[index] = NumberFormatter.FormatFloat(0);
|
|
}
|
|
else
|
|
{
|
|
elems[index] = Src(coordType);
|
|
}
|
|
}
|
|
|
|
string prefix = intCoords ? "i" : string.Empty;
|
|
|
|
return prefix + "vec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(coordType);
|
|
}
|
|
}
|
|
|
|
string ApplyScaling(string vector)
|
|
{
|
|
if (intCoords)
|
|
{
|
|
if (context.Config.Stage.SupportsRenderScale() &&
|
|
!isBindless &&
|
|
!isIndexed)
|
|
{
|
|
int index = context.Config.FindTextureDescriptorIndex(texOp);
|
|
|
|
if (pCount == 3 && isArray)
|
|
{
|
|
// The array index is not scaled, just x and y.
|
|
vector = "ivec3(Helper_TexelFetchScale((" + vector + ").xy, " + index + "), (" + vector + ").z)";
|
|
}
|
|
else if (pCount == 2 && !isArray)
|
|
{
|
|
vector = "Helper_TexelFetchScale(" + vector + ", " + index + ")";
|
|
}
|
|
}
|
|
}
|
|
|
|
return vector;
|
|
}
|
|
|
|
string ApplyBias(string vector)
|
|
{
|
|
int gatherBiasPrecision = context.Config.GpuAccessor.QueryHostGatherBiasPrecision();
|
|
if (isGather && gatherBiasPrecision != 0)
|
|
{
|
|
// GPU requires texture gather to be slightly offset to match NVIDIA behaviour when point is exactly between two texels.
|
|
// Offset by the gather precision divided by 2 to correct for rounding.
|
|
|
|
if (pCount == 1)
|
|
{
|
|
vector = $"{vector} + (1.0 / (float(textureSize({samplerName}, 0)) * float({1 << (gatherBiasPrecision + 1)})))";
|
|
}
|
|
else
|
|
{
|
|
vector = $"{vector} + (1.0 / (vec{pCount}(textureSize({samplerName}, 0).{"xyz".Substring(0, pCount)}) * float({1 << (gatherBiasPrecision + 1)})))";
|
|
}
|
|
}
|
|
|
|
return vector;
|
|
}
|
|
|
|
Append(ApplyBias(ApplyScaling(AssemblePVector(pCount))));
|
|
|
|
string AssembleDerivativesVector(int count)
|
|
{
|
|
if (count > 1)
|
|
{
|
|
string[] elems = new string[count];
|
|
|
|
for (int index = 0; index < count; index++)
|
|
{
|
|
elems[index] = Src(AggregateType.FP32);
|
|
}
|
|
|
|
return "vec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(AggregateType.FP32);
|
|
}
|
|
}
|
|
|
|
if (hasExtraCompareArg)
|
|
{
|
|
Append(Src(AggregateType.FP32));
|
|
}
|
|
|
|
if (hasDerivatives)
|
|
{
|
|
Append(AssembleDerivativesVector(coordsCount)); // dPdx
|
|
Append(AssembleDerivativesVector(coordsCount)); // dPdy
|
|
}
|
|
|
|
if (isMultisample)
|
|
{
|
|
Append(Src(AggregateType.S32));
|
|
}
|
|
else if (hasLodLevel)
|
|
{
|
|
Append(Src(coordType));
|
|
}
|
|
|
|
string AssembleOffsetVector(int count)
|
|
{
|
|
if (count > 1)
|
|
{
|
|
string[] elems = new string[count];
|
|
|
|
for (int index = 0; index < count; index++)
|
|
{
|
|
elems[index] = Src(AggregateType.S32);
|
|
}
|
|
|
|
return "ivec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(AggregateType.S32);
|
|
}
|
|
}
|
|
|
|
if (hasOffset)
|
|
{
|
|
Append(AssembleOffsetVector(coordsCount));
|
|
}
|
|
else if (hasOffsets)
|
|
{
|
|
texCall += $", ivec{coordsCount}[4](";
|
|
|
|
texCall += AssembleOffsetVector(coordsCount) + ", ";
|
|
texCall += AssembleOffsetVector(coordsCount) + ", ";
|
|
texCall += AssembleOffsetVector(coordsCount) + ", ";
|
|
texCall += AssembleOffsetVector(coordsCount) + ")";
|
|
}
|
|
|
|
if (hasLodBias)
|
|
{
|
|
Append(Src(AggregateType.FP32));
|
|
}
|
|
|
|
// textureGather* optional extra component index,
|
|
// not needed for shadow samplers.
|
|
if (isGather && !isShadow)
|
|
{
|
|
Append(Src(AggregateType.S32));
|
|
}
|
|
|
|
texCall += ")" + (colorIsVector ? GetMaskMultiDest(texOp.Index) : "");
|
|
|
|
return texCall;
|
|
}
|
|
|
|
public static string TextureSize(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
|
|
|
|
// TODO: Bindless texture support. For now we just return 0.
|
|
if (isBindless)
|
|
{
|
|
return NumberFormatter.FormatInt(0);
|
|
}
|
|
|
|
bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0;
|
|
|
|
string indexExpr = null;
|
|
|
|
if (isIndexed)
|
|
{
|
|
indexExpr = GetSoureExpr(context, texOp.GetSource(0), AggregateType.S32);
|
|
}
|
|
|
|
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
|
|
|
|
if (texOp.Index == 3)
|
|
{
|
|
return $"textureQueryLevels({samplerName})";
|
|
}
|
|
else
|
|
{
|
|
(TextureDescriptor descriptor, int descriptorIndex) = context.Config.FindTextureDescriptor(texOp);
|
|
bool hasLod = !descriptor.Type.HasFlag(SamplerType.Multisample) && descriptor.Type != SamplerType.TextureBuffer;
|
|
string texCall;
|
|
|
|
if (hasLod)
|
|
{
|
|
int lodSrcIndex = isBindless || isIndexed ? 1 : 0;
|
|
IAstNode lod = operation.GetSource(lodSrcIndex);
|
|
string lodExpr = GetSoureExpr(context, lod, GetSrcVarType(operation.Inst, lodSrcIndex));
|
|
|
|
texCall = $"textureSize({samplerName}, {lodExpr}){GetMask(texOp.Index)}";
|
|
}
|
|
else
|
|
{
|
|
texCall = $"textureSize({samplerName}){GetMask(texOp.Index)}";
|
|
}
|
|
|
|
if (context.Config.Stage.SupportsRenderScale() &&
|
|
(texOp.Index < 2 || (texOp.Type & SamplerType.Mask) == SamplerType.Texture3D) &&
|
|
!isBindless &&
|
|
!isIndexed)
|
|
{
|
|
texCall = $"Helper_TextureSizeUnscale({texCall}, {descriptorIndex})";
|
|
}
|
|
|
|
return texCall;
|
|
}
|
|
}
|
|
|
|
private static string GetStorageBufferAccessor(string slotExpr, string offsetExpr, ShaderStage stage)
|
|
{
|
|
string sbName = OperandManager.GetShaderStagePrefix(stage);
|
|
|
|
sbName += "_" + DefaultNames.StorageNamePrefix;
|
|
|
|
return $"{sbName}[{slotExpr}].{DefaultNames.DataName}[{offsetExpr}]";
|
|
}
|
|
|
|
private static string GetMask(int index)
|
|
{
|
|
return $".{"rgba".AsSpan(index, 1)}";
|
|
}
|
|
|
|
private static string GetMaskMultiDest(int mask)
|
|
{
|
|
string swizzle = ".";
|
|
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
if ((mask & (1 << i)) != 0)
|
|
{
|
|
swizzle += "xyzw"[i];
|
|
}
|
|
}
|
|
|
|
return swizzle;
|
|
}
|
|
}
|
|
} |