346 lines
No EOL
16 KiB
C#
346 lines
No EOL
16 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 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 =
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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.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.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("gl_SubGroupInvocationARB", VariableType.U32) },
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{ AttributeConsts.EqMask, new BuiltInAttribute("unpackUint2x32(gl_SubGroupEqMaskARB).x", VariableType.U32) },
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{ AttributeConsts.GeMask, new BuiltInAttribute("unpackUint2x32(gl_SubGroupGeMaskARB).x", VariableType.U32) },
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{ AttributeConsts.GtMask, new BuiltInAttribute("unpackUint2x32(gl_SubGroupGtMaskARB).x", VariableType.U32) },
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{ AttributeConsts.LeMask, new BuiltInAttribute("unpackUint2x32(gl_SubGroupLeMaskARB).x", VariableType.U32) },
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{ AttributeConsts.LtMask, new BuiltInAttribute("unpackUint2x32(gl_SubGroupLtMaskARB).x", VariableType.U32) },
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// Support uniforms.
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{ AttributeConsts.FragmentOutputIsBgraBase + 0, new BuiltInAttribute($"{DefaultNames.IsBgraName}[0]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 4, new BuiltInAttribute($"{DefaultNames.IsBgraName}[1]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 8, new BuiltInAttribute($"{DefaultNames.IsBgraName}[2]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 12, new BuiltInAttribute($"{DefaultNames.IsBgraName}[3]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 16, new BuiltInAttribute($"{DefaultNames.IsBgraName}[4]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 20, new BuiltInAttribute($"{DefaultNames.IsBgraName}[5]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 24, new BuiltInAttribute($"{DefaultNames.IsBgraName}[6]", VariableType.Bool) },
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{ AttributeConsts.FragmentOutputIsBgraBase + 28, new BuiltInAttribute($"{DefaultNames.IsBgraName}[7]", VariableType.Bool) }
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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 = $"{DefaultNames.LocalNamePrefix}_{_locals.Count}";
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_locals.Add(operand, name);
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return name;
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}
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public string GetExpression(AstOperand operand, ShaderConfig config, bool cbIndexable)
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{
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switch (operand.Type)
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{
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case OperandType.Argument:
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return GetArgumentName(operand.Value);
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case OperandType.Attribute:
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return GetAttributeName(operand, config);
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case OperandType.Constant:
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return NumberFormatter.FormatInt(operand.Value);
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case OperandType.ConstantBuffer:
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return GetConstantBufferName(operand.CbufSlot, operand.CbufOffset, config.Stage, cbIndexable);
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case OperandType.LocalVariable:
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return _locals[operand];
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case OperandType.Undefined:
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return DefaultNames.UndefinedName;
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}
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throw new ArgumentException($"Invalid operand type \"{operand.Type}\".");
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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)
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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)
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{
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return GetVec4Indexed(GetUbName(stage, slot, cbIndexable) + $"[{offsetExpr} >> 2]", offsetExpr + " & 3");
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}
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public static string GetConstantBufferName(string slotExpr, string offsetExpr, ShaderStage stage)
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{
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return GetVec4Indexed(GetUbName(stage, slotExpr) + $"[{offsetExpr} >> 2]", offsetExpr + " & 3");
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}
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public static string GetOutAttributeName(AstOperand attr, ShaderConfig config)
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{
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return GetAttributeName(attr, config, isOutAttr: true);
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}
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public static string GetAttributeName(AstOperand attr, ShaderConfig config, bool isOutAttr = false, string indexExpr = "0")
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{
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int value = attr.Value;
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char swzMask = GetSwizzleMask((value >> 2) & 3);
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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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if ((config.Flags & TranslationFlags.Feedback) != 0)
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{
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string name = $"{prefix}{(value >> 4)}_{swzMask}";
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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;
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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 (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 + '.' + 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 & ~3, out BuiltInAttribute builtInAttr))
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{
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// TODO: There must be a better way to handle this...
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if (config.Stage == ShaderStage.Fragment)
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{
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switch (value & ~3)
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{
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case AttributeConsts.PositionX: return "(gl_FragCoord.x / fp_renderScale[0])";
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case AttributeConsts.PositionY: return "(gl_FragCoord.y / fp_renderScale[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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}
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}
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string name = builtInAttr.Name;
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if (config.Stage == ShaderStage.Geometry && (value & AttributeConsts.SpecialMask) == 0 && !isOutAttr)
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{
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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 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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string suffix = texOp.CbufSlot < 0 ? $"_tcb_{texOp.Handle:X}" : $"_cb{texOp.CbufSlot}_{texOp.Handle:X}";
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if ((texOp.Type & SamplerType.Indexed) != 0)
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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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string suffix = texOp.CbufSlot < 0 ? $"_tcb_{texOp.Handle:X}_{texOp.Format.ToGlslFormat()}" : $"_cb{texOp.CbufSlot}_{texOp.Handle:X}_{texOp.Format.ToGlslFormat()}";
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if ((texOp.Type & SamplerType.Indexed) != 0)
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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)
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{
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if (node is AstOperation operation)
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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.Inst == Instruction.LoadAttribute)
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{
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return GetOperandVarType((AstOperand)operation.GetSource(0));
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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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{
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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(operand);
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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(AstOperand operand)
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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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}
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return OperandInfo.GetVarType(operand);
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}
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}
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} |