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Ryujinx/Ryujinx.Graphics/Shader/Decoders/OpCodeTextureScalar.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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1.9 KiB
C#

using Ryujinx.Graphics.Shader.Instructions;
namespace Ryujinx.Graphics.Shader.Decoders
{
class OpCodeTextureScalar : OpCode
{
#region "Component mask LUT"
private const int ____ = 0x0;
private const int R___ = 0x1;
private const int _G__ = 0x2;
private const int RG__ = 0x3;
private const int __B_ = 0x4;
private const int RGB_ = 0x7;
private const int ___A = 0x8;
private const int R__A = 0x9;
private const int _G_A = 0xa;
private const int RG_A = 0xb;
private const int __BA = 0xc;
private const int R_BA = 0xd;
private const int _GBA = 0xe;
private const int RGBA = 0xf;
private static int[,] _maskLut = new int[,]
{
{ R___, _G__, __B_, ___A, RG__, R__A, _G_A, __BA },
{ RGB_, RG_A, R_BA, _GBA, RGBA, ____, ____, ____ }
};
#endregion
public Register Rd0 { get; }
public Register Ra { get; }
public Register Rb { get; }
public Register Rd1 { get; }
public int Immediate { get; }
public int ComponentMask { get; }
protected int RawType;
public bool IsFp16 { get; }
public OpCodeTextureScalar(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode)
{
Rd0 = new Register(opCode.Extract(0, 8), RegisterType.Gpr);
Ra = new Register(opCode.Extract(8, 8), RegisterType.Gpr);
Rb = new Register(opCode.Extract(20, 8), RegisterType.Gpr);
Rd1 = new Register(opCode.Extract(28, 8), RegisterType.Gpr);
Immediate = opCode.Extract(36, 13);
int compSel = opCode.Extract(50, 3);
RawType = opCode.Extract(53, 4);
IsFp16 = !opCode.Extract(59);
ComponentMask = _maskLut[Rd1.IsRZ ? 0 : 1, compSel];
}
}
}