Ryujinx/Ryujinx.Graphics/Shader/Translation/EmitterContext.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

105 lines
2.8 KiB
C#

using Ryujinx.Graphics.Gal;
using Ryujinx.Graphics.Shader.Decoders;
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using System.Collections.Generic;
using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
namespace Ryujinx.Graphics.Shader.Translation
{
class EmitterContext
{
public Block CurrBlock { get; set; }
public OpCode CurrOp { get; set; }
private GalShaderType _shaderType;
private ShaderHeader _header;
private List<Operation> _operations;
private Dictionary<ulong, Operand> _labels;
public EmitterContext(GalShaderType shaderType, ShaderHeader header)
{
_shaderType = shaderType;
_header = header;
_operations = new List<Operation>();
_labels = new Dictionary<ulong, Operand>();
}
public Operand Add(Instruction inst, Operand dest = null, params Operand[] sources)
{
Operation operation = new Operation(inst, dest, sources);
Add(operation);
return dest;
}
public void Add(Operation operation)
{
_operations.Add(operation);
}
public void MarkLabel(Operand label)
{
Add(Instruction.MarkLabel, label);
}
public Operand GetLabel(ulong address)
{
if (!_labels.TryGetValue(address, out Operand label))
{
label = Label();
_labels.Add(address, label);
}
return label;
}
public void PrepareForReturn()
{
if (_shaderType == GalShaderType.Fragment)
{
if (_header.OmapDepth)
{
Operand dest = Attribute(AttributeConsts.FragmentOutputDepth);
Operand src = Register(_header.DepthRegister, RegisterType.Gpr);
this.Copy(dest, src);
}
int regIndex = 0;
for (int attachment = 0; attachment < 8; attachment++)
{
OutputMapTarget target = _header.OmapTargets[attachment];
for (int component = 0; component < 4; component++)
{
if (target.ComponentEnabled(component))
{
Operand dest = Attribute(AttributeConsts.FragmentOutputColorBase + regIndex * 4);
Operand src = Register(regIndex, RegisterType.Gpr);
this.Copy(dest, src);
regIndex++;
}
}
}
}
}
public Operation[] GetOperations()
{
return _operations.ToArray();
}
}
}