forked from Mirror/Ryujinx
479 lines
No EOL
23 KiB
C#
479 lines
No EOL
23 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.Collections.Generic;
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using System.Diagnostics;
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using static Ryujinx.Graphics.Shader.StructuredIr.InstructionInfo;
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namespace Ryujinx.Graphics.Shader.CodeGen.Glsl
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{
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class OperandManager
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{
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private static readonly string[] StagePrefixes = new string[] { "cp", "vp", "tcp", "tep", "gp", "fp" };
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private struct BuiltInAttribute
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{
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public string Name { get; }
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public VariableType Type { get; }
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public BuiltInAttribute(string name, VariableType type)
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{
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Name = name;
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Type = type;
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}
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}
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private static Dictionary<int, BuiltInAttribute> _builtInAttributes = new Dictionary<int, BuiltInAttribute>()
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{
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{ AttributeConsts.Layer, new BuiltInAttribute("gl_Layer", VariableType.S32) },
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{ AttributeConsts.PointSize, new BuiltInAttribute("gl_PointSize", VariableType.F32) },
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{ AttributeConsts.PositionX, new BuiltInAttribute("gl_Position.x", VariableType.F32) },
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{ AttributeConsts.PositionY, new BuiltInAttribute("gl_Position.y", VariableType.F32) },
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{ AttributeConsts.PositionZ, new BuiltInAttribute("gl_Position.z", VariableType.F32) },
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{ AttributeConsts.PositionW, new BuiltInAttribute("gl_Position.w", VariableType.F32) },
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{ AttributeConsts.ClipDistance0, new BuiltInAttribute("gl_ClipDistance[0]", VariableType.F32) },
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{ AttributeConsts.ClipDistance1, new BuiltInAttribute("gl_ClipDistance[1]", VariableType.F32) },
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{ AttributeConsts.ClipDistance2, new BuiltInAttribute("gl_ClipDistance[2]", VariableType.F32) },
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{ AttributeConsts.ClipDistance3, new BuiltInAttribute("gl_ClipDistance[3]", VariableType.F32) },
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{ AttributeConsts.ClipDistance4, new BuiltInAttribute("gl_ClipDistance[4]", VariableType.F32) },
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{ AttributeConsts.ClipDistance5, new BuiltInAttribute("gl_ClipDistance[5]", VariableType.F32) },
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{ AttributeConsts.ClipDistance6, new BuiltInAttribute("gl_ClipDistance[6]", VariableType.F32) },
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{ AttributeConsts.ClipDistance7, new BuiltInAttribute("gl_ClipDistance[7]", VariableType.F32) },
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{ AttributeConsts.PointCoordX, new BuiltInAttribute("gl_PointCoord.x", VariableType.F32) },
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{ AttributeConsts.PointCoordY, new BuiltInAttribute("gl_PointCoord.y", VariableType.F32) },
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{ AttributeConsts.TessCoordX, new BuiltInAttribute("gl_TessCoord.x", VariableType.F32) },
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{ AttributeConsts.TessCoordY, new BuiltInAttribute("gl_TessCoord.y", VariableType.F32) },
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{ AttributeConsts.InstanceId, new BuiltInAttribute("gl_InstanceID", VariableType.S32) },
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{ AttributeConsts.VertexId, new BuiltInAttribute("gl_VertexID", VariableType.S32) },
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{ AttributeConsts.BaseInstance, new BuiltInAttribute("gl_BaseInstance", VariableType.S32) },
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{ AttributeConsts.BaseVertex, new BuiltInAttribute("gl_BaseVertex", VariableType.S32) },
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{ AttributeConsts.InstanceIndex, new BuiltInAttribute("gl_InstanceIndex", VariableType.S32) },
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{ AttributeConsts.VertexIndex, new BuiltInAttribute("gl_VertexIndex", VariableType.S32) },
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{ AttributeConsts.FrontFacing, new BuiltInAttribute("gl_FrontFacing", VariableType.Bool) },
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// Special.
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{ AttributeConsts.FragmentOutputDepth, new BuiltInAttribute("gl_FragDepth", VariableType.F32) },
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{ AttributeConsts.ThreadKill, new BuiltInAttribute("gl_HelperInvocation", VariableType.Bool) },
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{ AttributeConsts.ThreadIdX, new BuiltInAttribute("gl_LocalInvocationID.x", VariableType.U32) },
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{ AttributeConsts.ThreadIdY, new BuiltInAttribute("gl_LocalInvocationID.y", VariableType.U32) },
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{ AttributeConsts.ThreadIdZ, new BuiltInAttribute("gl_LocalInvocationID.z", VariableType.U32) },
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{ AttributeConsts.CtaIdX, new BuiltInAttribute("gl_WorkGroupID.x", VariableType.U32) },
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{ AttributeConsts.CtaIdY, new BuiltInAttribute("gl_WorkGroupID.y", VariableType.U32) },
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{ AttributeConsts.CtaIdZ, new BuiltInAttribute("gl_WorkGroupID.z", VariableType.U32) },
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{ AttributeConsts.LaneId, new BuiltInAttribute(null, VariableType.U32) },
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{ AttributeConsts.InvocationId, new BuiltInAttribute("gl_InvocationID", VariableType.S32) },
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{ AttributeConsts.PrimitiveId, new BuiltInAttribute("gl_PrimitiveID", VariableType.S32) },
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{ AttributeConsts.PatchVerticesIn, new BuiltInAttribute("gl_PatchVerticesIn", VariableType.S32) },
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{ AttributeConsts.EqMask, new BuiltInAttribute(null, VariableType.U32) },
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{ AttributeConsts.GeMask, new BuiltInAttribute(null, VariableType.U32) },
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{ AttributeConsts.GtMask, new BuiltInAttribute(null, VariableType.U32) },
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{ AttributeConsts.LeMask, new BuiltInAttribute(null, VariableType.U32) },
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{ AttributeConsts.LtMask, new BuiltInAttribute(null, VariableType.U32) },
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// Support uniforms.
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{ AttributeConsts.FragmentOutputIsBgraBase + 0, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[0]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 4, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[1]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 8, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[2]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 12, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[3]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 16, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[4]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 20, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[5]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 24, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[6]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 28, new BuiltInAttribute($"{DefaultNames.SupportBlockIsBgraName}[7]", VariableType.Bool) },
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{ AttributeConsts.SupportBlockViewInverseX, new BuiltInAttribute($"{DefaultNames.SupportBlockViewportInverse}.x", VariableType.F32) },
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{ AttributeConsts.SupportBlockViewInverseY, new BuiltInAttribute($"{DefaultNames.SupportBlockViewportInverse}.y", VariableType.F32) }
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};
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private Dictionary<AstOperand, string> _locals;
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public OperandManager()
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{
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_locals = new Dictionary<AstOperand, string>();
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}
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public string DeclareLocal(AstOperand operand)
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{
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string name = $"{DefaultNames.LocalNamePrefix}_{_locals.Count}";
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_locals.Add(operand, name);
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return name;
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}
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public string GetExpression(AstOperand operand, ShaderConfig config)
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{
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return operand.Type switch
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{
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OperandType.Argument => GetArgumentName(operand.Value),
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OperandType.Attribute => GetAttributeName(operand.Value, config, perPatch: false),
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OperandType.AttributePerPatch => GetAttributeName(operand.Value, config, perPatch: true),
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OperandType.Constant => NumberFormatter.FormatInt(operand.Value),
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OperandType.ConstantBuffer => GetConstantBufferName(operand, config),
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OperandType.LocalVariable => _locals[operand],
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OperandType.Undefined => DefaultNames.UndefinedName,
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_ => throw new ArgumentException($"Invalid operand type \"{operand.Type}\".")
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};
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}
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private static string GetConstantBufferName(AstOperand operand, ShaderConfig config)
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{
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return GetConstantBufferName(operand.CbufSlot, operand.CbufOffset, config.Stage, config.UsedFeatures.HasFlag(FeatureFlags.CbIndexing));
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}
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public static string GetConstantBufferName(int slot, int offset, ShaderStage stage, bool cbIndexable)
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{
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return $"{GetUbName(stage, slot, cbIndexable)}[{offset >> 2}].{GetSwizzleMask(offset & 3)}";
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}
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private static string GetVec4Indexed(string vectorName, string indexExpr, bool indexElement)
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{
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if (indexElement)
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{
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return $"{vectorName}[{indexExpr}]";
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}
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string result = $"{vectorName}.x";
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for (int i = 1; i < 4; i++)
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{
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result = $"(({indexExpr}) == {i}) ? ({vectorName}.{GetSwizzleMask(i)}) : ({result})";
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}
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return $"({result})";
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}
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public static string GetConstantBufferName(int slot, string offsetExpr, ShaderStage stage, bool cbIndexable, bool indexElement)
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{
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return GetVec4Indexed(GetUbName(stage, slot, cbIndexable) + $"[{offsetExpr} >> 2]", offsetExpr + " & 3", indexElement);
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}
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public static string GetConstantBufferName(string slotExpr, string offsetExpr, ShaderStage stage, bool indexElement)
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{
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return GetVec4Indexed(GetUbName(stage, slotExpr) + $"[{offsetExpr} >> 2]", offsetExpr + " & 3", indexElement);
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}
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public static string GetOutAttributeName(int value, ShaderConfig config, bool perPatch)
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{
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return GetAttributeName(value, config, perPatch, isOutAttr: true);
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}
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public static string GetAttributeName(int value, ShaderConfig config, bool perPatch, bool isOutAttr = false, string indexExpr = "0")
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{
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if ((value & AttributeConsts.LoadOutputMask) != 0)
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{
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isOutAttr = true;
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}
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value &= AttributeConsts.Mask & ~3;
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char swzMask = GetSwizzleMask((value >> 2) & 3);
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if (perPatch)
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{
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if (value >= AttributeConsts.UserAttributePerPatchBase && value < AttributeConsts.UserAttributePerPatchEnd)
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{
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value -= AttributeConsts.UserAttributePerPatchBase;
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return $"{DefaultNames.PerPatchAttributePrefix}{(value >> 4)}.{swzMask}";
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}
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else if (value < AttributeConsts.UserAttributePerPatchBase)
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{
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return value switch
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{
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AttributeConsts.TessLevelOuter0 => "gl_TessLevelOuter[0]",
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AttributeConsts.TessLevelOuter1 => "gl_TessLevelOuter[1]",
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AttributeConsts.TessLevelOuter2 => "gl_TessLevelOuter[2]",
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AttributeConsts.TessLevelOuter3 => "gl_TessLevelOuter[3]",
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AttributeConsts.TessLevelInner0 => "gl_TessLevelInner[0]",
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AttributeConsts.TessLevelInner1 => "gl_TessLevelInner[1]",
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_ => null
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};
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}
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}
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else if (value >= AttributeConsts.UserAttributeBase && value < AttributeConsts.UserAttributeEnd)
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{
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value -= AttributeConsts.UserAttributeBase;
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string prefix = isOutAttr
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? DefaultNames.OAttributePrefix
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: DefaultNames.IAttributePrefix;
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bool indexable = config.UsedFeatures.HasFlag(isOutAttr ? FeatureFlags.OaIndexing : FeatureFlags.IaIndexing);
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if (indexable)
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{
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string name = prefix;
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if (config.Stage == ShaderStage.Geometry && !isOutAttr)
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{
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name += $"[{indexExpr}]";
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}
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return name + $"[{(value >> 4)}]." + swzMask;
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}
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else if (config.TransformFeedbackEnabled &&
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((config.LastInVertexPipeline && isOutAttr) ||
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(config.Stage == ShaderStage.Fragment && !isOutAttr)))
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{
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string name = $"{prefix}{(value >> 4)}_{swzMask}";
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if (AttributeInfo.IsArrayAttributeGlsl(config.Stage, isOutAttr))
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{
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name += isOutAttr ? "[gl_InvocationID]" : $"[{indexExpr}]";
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}
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return name;
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}
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else
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{
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string name = $"{prefix}{(value >> 4)}";
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if (AttributeInfo.IsArrayAttributeGlsl(config.Stage, isOutAttr))
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{
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name += isOutAttr ? "[gl_InvocationID]" : $"[{indexExpr}]";
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}
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return name + '.' + swzMask;
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}
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}
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else
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{
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if (value >= AttributeConsts.FragmentOutputColorBase && value < AttributeConsts.FragmentOutputColorEnd)
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{
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value -= AttributeConsts.FragmentOutputColorBase;
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return $"{DefaultNames.OAttributePrefix}{(value >> 4)}.{swzMask}";
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}
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else if (_builtInAttributes.TryGetValue(value, out BuiltInAttribute builtInAttr))
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{
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string subgroupMask = value switch
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{
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AttributeConsts.EqMask => "Eq",
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AttributeConsts.GeMask => "Ge",
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AttributeConsts.GtMask => "Gt",
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AttributeConsts.LeMask => "Le",
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AttributeConsts.LtMask => "Lt",
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_ => null
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};
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if (subgroupMask != null)
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{
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return config.GpuAccessor.QueryHostSupportsShaderBallot()
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? $"unpackUint2x32(gl_SubGroup{subgroupMask}MaskARB).x"
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: $"gl_Subgroup{subgroupMask}Mask.x";
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}
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else if (value == AttributeConsts.LaneId)
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{
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return config.GpuAccessor.QueryHostSupportsShaderBallot()
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? "gl_SubGroupInvocationARB"
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: "gl_SubgroupInvocationID";
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}
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if (config.Stage == ShaderStage.Fragment)
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{
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// TODO: There must be a better way to handle this...
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switch (value)
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{
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case AttributeConsts.PositionX: return $"(gl_FragCoord.x / {DefaultNames.SupportBlockRenderScaleName}[0])";
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case AttributeConsts.PositionY: return $"(gl_FragCoord.y / {DefaultNames.SupportBlockRenderScaleName}[0])";
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case AttributeConsts.PositionZ: return "gl_FragCoord.z";
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case AttributeConsts.PositionW: return "gl_FragCoord.w";
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case AttributeConsts.FrontFacing:
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if (config.GpuAccessor.QueryHostHasFrontFacingBug())
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{
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// This is required for Intel on Windows, gl_FrontFacing sometimes returns incorrect
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// (flipped) values. Doing this seems to fix it.
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return "(-floatBitsToInt(float(gl_FrontFacing)) < 0)";
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}
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break;
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}
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}
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string name = builtInAttr.Name;
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if (AttributeInfo.IsArrayAttributeGlsl(config.Stage, isOutAttr) && AttributeInfo.IsArrayBuiltIn(value))
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{
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name = isOutAttr ? $"gl_out[gl_InvocationID].{name}" : $"gl_in[{indexExpr}].{name}";
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}
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return name;
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}
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}
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// TODO: Warn about unknown built-in attribute.
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return isOutAttr ? "// bad_attr0x" + value.ToString("X") : "0.0";
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}
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public static string GetAttributeName(string attrExpr, ShaderConfig config, bool isOutAttr = false, string indexExpr = "0")
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{
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string name = isOutAttr
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? DefaultNames.OAttributePrefix
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: DefaultNames.IAttributePrefix;
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if (config.Stage == ShaderStage.Geometry && !isOutAttr)
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{
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name += $"[{indexExpr}]";
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}
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return $"{name}[{attrExpr} >> 2][{attrExpr} & 3]";
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}
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public static string GetUbName(ShaderStage stage, int slot, bool cbIndexable)
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{
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if (cbIndexable)
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{
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return GetUbName(stage, NumberFormatter.FormatInt(slot, VariableType.S32));
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}
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return $"{GetShaderStagePrefix(stage)}_{DefaultNames.UniformNamePrefix}{slot}_{DefaultNames.UniformNameSuffix}";
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}
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private static string GetUbName(ShaderStage stage, string slotExpr)
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{
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return $"{GetShaderStagePrefix(stage)}_{DefaultNames.UniformNamePrefix}[{slotExpr}].{DefaultNames.DataName}";
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}
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public static string GetSamplerName(ShaderStage stage, AstTextureOperation texOp, string indexExpr)
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{
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return GetSamplerName(stage, texOp.CbufSlot, texOp.Handle, texOp.Type.HasFlag(SamplerType.Indexed), indexExpr);
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}
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public static string GetSamplerName(ShaderStage stage, int cbufSlot, int handle, bool indexed, string indexExpr)
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{
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string suffix = cbufSlot < 0 ? $"_tcb_{handle:X}" : $"_cb{cbufSlot}_{handle:X}";
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if (indexed)
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{
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suffix += $"a[{indexExpr}]";
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}
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return GetShaderStagePrefix(stage) + "_" + DefaultNames.SamplerNamePrefix + suffix;
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}
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public static string GetImageName(ShaderStage stage, AstTextureOperation texOp, string indexExpr)
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{
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return GetImageName(stage, texOp.CbufSlot, texOp.Handle, texOp.Format, texOp.Type.HasFlag(SamplerType.Indexed), indexExpr);
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}
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public static string GetImageName(
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ShaderStage stage,
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int cbufSlot,
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int handle,
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TextureFormat format,
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bool indexed,
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string indexExpr)
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{
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string suffix = cbufSlot < 0
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? $"_tcb_{handle:X}_{format.ToGlslFormat()}"
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: $"_cb{cbufSlot}_{handle:X}_{format.ToGlslFormat()}";
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if (indexed)
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{
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suffix += $"a[{indexExpr}]";
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}
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return GetShaderStagePrefix(stage) + "_" + DefaultNames.ImageNamePrefix + suffix;
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}
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public static string GetShaderStagePrefix(ShaderStage stage)
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{
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int index = (int)stage;
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if ((uint)index >= StagePrefixes.Length)
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{
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return "invalid";
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}
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return StagePrefixes[index];
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}
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private static char GetSwizzleMask(int value)
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{
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return "xyzw"[value];
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}
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public static string GetArgumentName(int argIndex)
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{
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return $"{DefaultNames.ArgumentNamePrefix}{argIndex}";
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}
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public static VariableType GetNodeDestType(CodeGenContext context, IAstNode node, bool isAsgDest = false)
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{
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if (node is AstOperation operation)
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{
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if (operation.Inst == Instruction.LoadAttribute)
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{
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// Load attribute basically just returns the attribute value.
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// Some built-in attributes may have different types, so we need
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// to return the type based on the attribute that is being read.
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if (operation.GetSource(0) is AstOperand operand && operand.Type == OperandType.Constant)
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{
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if (_builtInAttributes.TryGetValue(operand.Value & ~3, out BuiltInAttribute builtInAttr))
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{
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return builtInAttr.Type;
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}
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}
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return OperandInfo.GetVarType(OperandType.Attribute);
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}
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else if (operation.Inst == Instruction.Call)
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{
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AstOperand funcId = (AstOperand)operation.GetSource(0);
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Debug.Assert(funcId.Type == OperandType.Constant);
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return context.GetFunction(funcId.Value).ReturnType;
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}
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else if (operation is AstTextureOperation texOp &&
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(texOp.Inst == Instruction.ImageLoad ||
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texOp.Inst == Instruction.ImageStore ||
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texOp.Inst == Instruction.ImageAtomic))
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{
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return texOp.Format.GetComponentType();
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}
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return GetDestVarType(operation.Inst);
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}
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else if (node is AstOperand operand)
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{
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if (operand.Type == OperandType.Argument)
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{
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int argIndex = operand.Value;
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return context.CurrentFunction.GetArgumentType(argIndex);
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}
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return GetOperandVarType(context, operand, isAsgDest);
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}
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else
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{
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throw new ArgumentException($"Invalid node type \"{node?.GetType().Name ?? "null"}\".");
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}
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}
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private static VariableType GetOperandVarType(CodeGenContext context, AstOperand operand, bool isAsgDest = false)
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{
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if (operand.Type == OperandType.Attribute)
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|
{
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if (_builtInAttributes.TryGetValue(operand.Value & ~3, out BuiltInAttribute builtInAttr))
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{
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return builtInAttr.Type;
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}
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else if (context.Config.Stage == ShaderStage.Vertex && !isAsgDest &&
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operand.Value >= AttributeConsts.UserAttributeBase &&
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operand.Value < AttributeConsts.UserAttributeEnd)
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{
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|
int location = (operand.Value - AttributeConsts.UserAttributeBase) / 16;
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AttributeType type = context.Config.GpuAccessor.QueryAttributeType(location);
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return type.ToVariableType();
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}
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}
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return OperandInfo.GetVarType(operand);
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}
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|
}
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} |