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ryujinx-final/Ryujinx.Graphics/Shader/StructuredIr/AstHelper.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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C#

using Ryujinx.Graphics.Shader.IntermediateRepresentation;
namespace Ryujinx.Graphics.Shader.StructuredIr
{
static class AstHelper
{
public static void AddUse(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Uses.Add(parent);
}
}
public static void AddDef(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Defs.Add(parent);
}
}
public static void RemoveUse(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Uses.Remove(parent);
}
}
public static void RemoveDef(IAstNode node, IAstNode parent)
{
if (node is AstOperand operand && operand.Type == OperandType.LocalVariable)
{
operand.Defs.Remove(parent);
}
}
public static AstAssignment Assign(IAstNode destination, IAstNode source)
{
return new AstAssignment(destination, source);
}
public static AstOperand Const(int value)
{
return new AstOperand(OperandType.Constant, value);
}
public static AstOperand Local(VariableType type)
{
AstOperand local = new AstOperand(OperandType.LocalVariable);
local.VarType = type;
return local;
}
public static IAstNode InverseCond(IAstNode cond)
{
return new AstOperation(Instruction.LogicalNot, cond);
}
public static IAstNode Next(IAstNode node)
{
return node.LLNode.Next?.Value;
}
public static IAstNode Previous(IAstNode node)
{
return node.LLNode.Previous?.Value;
}
}
}