681 lines
No EOL
24 KiB
C#
681 lines
No EOL
24 KiB
C#
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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using Ryujinx.Graphics.Shader.StructuredIr;
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using System;
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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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return texOp.Inst == Instruction.ImageLoad ? NumberFormatter.FormatFloat(0) : "// imageStore(bindless)";
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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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string texCall = texOp.Inst == Instruction.ImageLoad ? "imageLoad" : "imageStore";
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int srcIndex = isBindless ? 1 : 0;
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string Src(VariableType 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(VariableType.S32);
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}
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string imageName = OperandManager.GetImageName(context.Config.Stage, texOp, indexExpr);
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texCall += "(" + 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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texCall += ", " + str;
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}
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string ApplyScaling(string vector)
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{
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int index = context.FindImageDescriptorIndex(texOp);
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TextureUsageFlags flags = TextureUsageFlags.NeedsScaleValue;
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if ((context.Config.Stage == ShaderStage.Fragment || context.Config.Stage == ShaderStage.Compute) &&
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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.TextureDescriptors.Count + index;
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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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else
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{
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flags |= TextureUsageFlags.ResScaleUnsupported;
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}
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}
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else
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{
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flags |= TextureUsageFlags.ResScaleUnsupported;
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}
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if (!isBindless)
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{
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context.ImageDescriptors[index] = context.ImageDescriptors[index].SetFlag(flags);
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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(VariableType.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(VariableType.S32));
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}
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if (texOp.Inst == Instruction.ImageStore)
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{
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int texIndex = context.FindImageDescriptorIndex(texOp);
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context.ImageDescriptors[texIndex] = context.ImageDescriptors[texIndex].SetFlag(TextureUsageFlags.ImageStore);
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VariableType 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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VariableType.S32 => NumberFormatter.FormatInt(0),
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VariableType.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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VariableType.S32 => "i",
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VariableType.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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texCall += ")" + (texOp.Inst == Instruction.ImageLoad ? GetMask(texOp.Index) : "");
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return texCall;
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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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if (!(src1 is AstOperand attr) || attr.Type != OperandType.Attribute)
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{
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throw new InvalidOperationException("First source of LoadAttribute must be a attribute.");
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}
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string indexExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
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return OperandManager.GetAttributeName(attr, context.Config, isOutAttr: false, indexExpr);
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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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if (src1 is AstOperand oper && oper.Type == OperandType.Constant)
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{
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return OperandManager.GetConstantBufferName(oper.Value, offsetExpr, context.Config.Stage, context.CbIndexable);
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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, context.Config.Stage);
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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, bool forAtomic = false)
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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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if (forAtomic)
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{
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SetStorageWriteFlag(context, src1, context.Config.Stage);
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}
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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), VariableType.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), VariableType.F32);
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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), VariableType.F32);
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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 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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VariableType srcType = OperandManager.GetNodeDestType(context, src2);
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string src = TypeConversion.ReinterpretCast(context, src2, srcType, VariableType.U32);
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return $"{arrayName}[{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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VariableType srcType = OperandManager.GetNodeDestType(context, src3);
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string src = TypeConversion.ReinterpretCast(context, src3, srcType, VariableType.U32);
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SetStorageWriteFlag(context, src1, context.Config.Stage);
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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 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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// 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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// This combination is valid, but not available on GLSL.
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// For now, ignore the LOD level and do a normal sample.
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// TODO: How to implement it properly?
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if (hasLodLevel && isArray && isShadow)
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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 = isBindless ? 1 : 0;
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string Src(VariableType 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(VariableType.S32);
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}
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string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
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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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VariableType coordType = intCoords ? VariableType.S32 : VariableType.F32;
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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(VariableType.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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string ApplyScaling(string vector)
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{
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if (intCoords)
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{
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int index = context.FindTextureDescriptorIndex(texOp);
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TextureUsageFlags flags = TextureUsageFlags.NeedsScaleValue;
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if ((context.Config.Stage == ShaderStage.Fragment || context.Config.Stage == ShaderStage.Compute) &&
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!isBindless &&
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!isIndexed)
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{
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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, " + index + "), (" + 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 + ", " + index + ")";
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}
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else
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{
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flags |= TextureUsageFlags.ResScaleUnsupported;
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}
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}
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else
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{
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// Resolution scaling cannot be applied to this texture right now.
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// Flag so that we know to blacklist scaling on related textures when binding them.
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flags |= TextureUsageFlags.ResScaleUnsupported;
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}
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if (!isBindless)
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{
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context.TextureDescriptors[index] = context.TextureDescriptors[index].SetFlag(flags);
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}
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}
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return vector;
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}
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Append(ApplyScaling(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(VariableType.F32);
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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(VariableType.F32);
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}
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}
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if (hasExtraCompareArg)
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{
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Append(Src(VariableType.F32));
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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(VariableType.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++)
|
|
{
|
|
elems[index] = Src(VariableType.S32);
|
|
}
|
|
|
|
return "ivec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(VariableType.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(VariableType.F32));
|
|
}
|
|
|
|
// textureGather* optional extra component index,
|
|
// not needed for shadow samplers.
|
|
if (isGather && !isShadow)
|
|
{
|
|
Append(Src(VariableType.S32));
|
|
}
|
|
|
|
texCall += ")" + (isGather || !isShadow ? GetMask(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), VariableType.S32);
|
|
}
|
|
|
|
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
|
|
|
|
int lodSrcIndex = isBindless || isIndexed ? 1 : 0;
|
|
|
|
IAstNode lod = operation.GetSource(lodSrcIndex);
|
|
|
|
string lodExpr = GetSoureExpr(context, lod, GetSrcVarType(operation.Inst, lodSrcIndex));
|
|
|
|
if (texOp.Index == 3)
|
|
{
|
|
return $"textureQueryLevels({samplerName})";
|
|
}
|
|
else
|
|
{
|
|
return $"textureSize({samplerName}, {lodExpr}){GetMask(texOp.Index)}";
|
|
}
|
|
}
|
|
|
|
private static void SetStorageWriteFlag(CodeGenContext context, IAstNode indexExpr, ShaderStage stage)
|
|
{
|
|
// Attempt to find a BufferDescriptor with the given index.
|
|
// If it cannot be resolved or is not constant, assume that the slot expression could potentially index any of them,
|
|
// and set the flag on all storage buffers.
|
|
|
|
int index = -1;
|
|
|
|
if (indexExpr is AstOperand operand && operand.Type == OperandType.Constant)
|
|
{
|
|
index = context.SBufferDescriptors.FindIndex(buffer => buffer.Slot == operand.Value);
|
|
}
|
|
|
|
if (index != -1)
|
|
{
|
|
context.SBufferDescriptors[index] = context.SBufferDescriptors[index].SetFlag(BufferUsageFlags.Write);
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < context.SBufferDescriptors.Count; i++)
|
|
{
|
|
context.SBufferDescriptors[i] = context.SBufferDescriptors[i].SetFlag(BufferUsageFlags.Write);
|
|
}
|
|
}
|
|
}
|
|
|
|
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".Substring(index, 1);
|
|
}
|
|
}
|
|
} |