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ryujinx-fork/Ryujinx.Graphics/Shader/StructuredIr/InstructionInfo.cs
gdkchan 6b23a2c125 New shader translator implementation (#654) 
* Start implementing a new shader translator

* Fix shift instructions and a typo

* Small refactoring on StructuredProgram, move RemovePhis method to a separate class

* Initial geometry shader support

* Implement TLD4

* Fix -- There's no negation on FMUL32I

* Add constant folding and algebraic simplification optimizations, nits

* Some leftovers from constant folding

* Avoid cast for constant assignments

* Add a branch elimination pass, and misc small fixes

* Remove redundant branches, add expression propagation and other improvements on the code

* Small leftovers -- add missing break and continue, remove unused properties, other improvements

* Add null check to handle empty block cases on block visitor

* Add HADD2 and HMUL2 half float shader instructions

* Optimize pack/unpack sequences, some fixes related to half float instructions

* Add TXQ, TLD, TLDS and TLD4S shader texture instructions, and some support for bindless textures, some refactoring on codegen

* Fix copy paste mistake that caused RZ to be ignored on the AST instruction

* Add workaround for conditional exit, and fix half float instruction with constant buffer

* Add missing 0.0 source for TLDS.LZ variants

* Simplify the switch for TLDS.LZ

* Texture instructions related fixes

* Implement the HFMA instruction, and some misc. fixes

* Enable constant folding on UnpackHalf2x16 instructions

* Refactor HFMA to use OpCode* for opcode decoding rather than on the helper methods

* Remove the old shader translator

* Remove ShaderDeclInfo and other unused things

* Add dual vertex shader support

* Add ShaderConfig, used to pass shader type and maximum cbuffer size

* Move and rename some instruction enums

* Move texture instructions into a separate file

* Move operand GetExpression and locals management to OperandManager

* Optimize opcode decoding using a simple list and binary search

* Add missing condition for do-while on goto elimination

* Misc. fixes on texture instructions

* Simplify TLDS switch

* Address PR feedback, and a nit
2019-04-18 09:57:08 +10:00

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using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using System;
namespace Ryujinx.Graphics.Shader.StructuredIr
{
static class InstructionInfo
{
private struct InstInfo
{
public VariableType DestType { get; }
public VariableType[] SrcTypes { get; }
public InstInfo(VariableType destType, params VariableType[] srcTypes)
{
DestType = destType;
SrcTypes = srcTypes;
}
}
private static InstInfo[] _infoTbl;
static InstructionInfo()
{
_infoTbl = new InstInfo[(int)Instruction.Count];
Add(Instruction.Absolute, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.Add, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.BitfieldExtractS32, VariableType.S32, VariableType.S32, VariableType.S32, VariableType.S32);
Add(Instruction.BitfieldExtractU32, VariableType.U32, VariableType.U32, VariableType.S32, VariableType.S32);
Add(Instruction.BitfieldInsert, VariableType.Int, VariableType.Int, VariableType.Int, VariableType.S32, VariableType.S32);
Add(Instruction.BitfieldReverse, VariableType.Int, VariableType.Int);
Add(Instruction.BitwiseAnd, VariableType.Int, VariableType.Int, VariableType.Int);
Add(Instruction.BitwiseExclusiveOr, VariableType.Int, VariableType.Int, VariableType.Int);
Add(Instruction.BitwiseNot, VariableType.Int, VariableType.Int);
Add(Instruction.BitwiseOr, VariableType.Int, VariableType.Int, VariableType.Int);
Add(Instruction.BranchIfTrue, VariableType.None, VariableType.Bool);
Add(Instruction.BranchIfFalse, VariableType.None, VariableType.Bool);
Add(Instruction.Ceiling, VariableType.F32, VariableType.F32, VariableType.F32);
Add(Instruction.Clamp, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.ClampU32, VariableType.U32, VariableType.U32, VariableType.U32, VariableType.U32);
Add(Instruction.CompareEqual, VariableType.Bool, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.CompareGreater, VariableType.Bool, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.CompareGreaterOrEqual, VariableType.Bool, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.CompareGreaterOrEqualU32, VariableType.Bool, VariableType.U32, VariableType.U32);
Add(Instruction.CompareGreaterU32, VariableType.Bool, VariableType.U32, VariableType.U32);
Add(Instruction.CompareLess, VariableType.Bool, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.CompareLessOrEqual, VariableType.Bool, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.CompareLessOrEqualU32, VariableType.Bool, VariableType.U32, VariableType.U32);
Add(Instruction.CompareLessU32, VariableType.Bool, VariableType.U32, VariableType.U32);
Add(Instruction.CompareNotEqual, VariableType.Bool, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.ConditionalSelect, VariableType.Scalar, VariableType.Bool, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.ConvertFPToS32, VariableType.S32, VariableType.F32);
Add(Instruction.ConvertS32ToFP, VariableType.F32, VariableType.S32);
Add(Instruction.ConvertU32ToFP, VariableType.F32, VariableType.U32);
Add(Instruction.Cosine, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.Divide, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.ExponentB2, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.Floor, VariableType.F32, VariableType.F32);
Add(Instruction.FusedMultiplyAdd, VariableType.F32, VariableType.F32, VariableType.F32, VariableType.F32);
Add(Instruction.IsNan, VariableType.Bool, VariableType.F32);
Add(Instruction.LoadConstant, VariableType.F32, VariableType.S32, VariableType.S32);
Add(Instruction.LogarithmB2, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.LogicalAnd, VariableType.Bool, VariableType.Bool, VariableType.Bool);
Add(Instruction.LogicalExclusiveOr, VariableType.Bool, VariableType.Bool, VariableType.Bool);
Add(Instruction.LogicalNot, VariableType.Bool, VariableType.Bool);
Add(Instruction.LogicalOr, VariableType.Bool, VariableType.Bool, VariableType.Bool);
Add(Instruction.ShiftLeft, VariableType.Int, VariableType.Int, VariableType.Int);
Add(Instruction.ShiftRightS32, VariableType.S32, VariableType.S32, VariableType.Int);
Add(Instruction.ShiftRightU32, VariableType.U32, VariableType.U32, VariableType.Int);
Add(Instruction.Maximum, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.MaximumU32, VariableType.U32, VariableType.U32, VariableType.U32);
Add(Instruction.Minimum, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.MinimumU32, VariableType.U32, VariableType.U32, VariableType.U32);
Add(Instruction.Multiply, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.Negate, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.PackHalf2x16, VariableType.U32, VariableType.F32, VariableType.F32);
Add(Instruction.ReciprocalSquareRoot, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.Sine, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.SquareRoot, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.Subtract, VariableType.Scalar, VariableType.Scalar, VariableType.Scalar);
Add(Instruction.TextureSample, VariableType.F32);
Add(Instruction.TextureSize, VariableType.S32, VariableType.S32, VariableType.S32);
Add(Instruction.Truncate, VariableType.F32, VariableType.F32);
Add(Instruction.UnpackHalf2x16, VariableType.F32, VariableType.U32);
}
private static void Add(Instruction inst, VariableType destType, params VariableType[] srcTypes)
{
_infoTbl[(int)inst] = new InstInfo(destType, srcTypes);
}
public static VariableType GetDestVarType(Instruction inst)
{
return GetFinalVarType(_infoTbl[(int)(inst & Instruction.Mask)].DestType, inst);
}
public static VariableType GetSrcVarType(Instruction inst, int index)
{
if (inst == Instruction.TextureSample)
{
return VariableType.F32;
}
return GetFinalVarType(_infoTbl[(int)(inst & Instruction.Mask)].SrcTypes[index], inst);
}
private static VariableType GetFinalVarType(VariableType type, Instruction inst)
{
if (type == VariableType.Scalar)
{
return (inst & Instruction.FP) != 0
? VariableType.F32
: VariableType.S32;
}
else if (type == VariableType.Int)
{
return VariableType.S32;
}
else if (type == VariableType.None)
{
throw new ArgumentException($"Invalid operand for instruction \"{inst}\".");
}
return type;
}
public static bool IsUnary(Instruction inst)
{
if (inst == Instruction.Copy)
{
return true;
}
else if (inst == Instruction.TextureSample)
{
return false;
}
return _infoTbl[(int)(inst & Instruction.Mask)].SrcTypes.Length == 1;
}
}
}
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