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https://github.com/Ryujinx/Ryujinx.git
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6b23a2c125
* 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
88 lines
3.2 KiB
C#
88 lines
3.2 KiB
C#
using Ryujinx.Graphics.Shader.Decoders;
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using Ryujinx.Graphics.Shader.IntermediateRepresentation;
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using Ryujinx.Graphics.Shader.Translation;
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using System;
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using static Ryujinx.Graphics.Shader.Instructions.InstEmitHelper;
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using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
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namespace Ryujinx.Graphics.Shader.Instructions
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{
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static class InstEmitAluHelper
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{
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public static int GetIntMin(IntegerType type)
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{
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switch (type)
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{
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case IntegerType.U8: return byte.MinValue;
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case IntegerType.S8: return sbyte.MinValue;
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case IntegerType.U16: return ushort.MinValue;
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case IntegerType.S16: return short.MinValue;
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case IntegerType.U32: return (int)uint.MinValue;
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case IntegerType.S32: return int.MinValue;
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}
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throw new ArgumentException($"The type \"{type}\" is not a supported int type.");
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}
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public static int GetIntMax(IntegerType type)
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{
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switch (type)
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{
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case IntegerType.U8: return byte.MaxValue;
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case IntegerType.S8: return sbyte.MaxValue;
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case IntegerType.U16: return ushort.MaxValue;
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case IntegerType.S16: return short.MaxValue;
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case IntegerType.U32: return unchecked((int)uint.MaxValue);
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case IntegerType.S32: return int.MaxValue;
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}
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throw new ArgumentException($"The type \"{type}\" is not a supported int type.");
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}
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public static Operand GetPredLogicalOp(
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EmitterContext context,
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LogicalOperation logicalOp,
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Operand input,
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Operand pred)
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{
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switch (logicalOp)
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{
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case LogicalOperation.And: return context.BitwiseAnd (input, pred);
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case LogicalOperation.Or: return context.BitwiseOr (input, pred);
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case LogicalOperation.ExclusiveOr: return context.BitwiseExclusiveOr(input, pred);
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}
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return input;
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}
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public static void SetZnFlags(EmitterContext context, Operand dest, bool setCC, bool extended = false)
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{
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if (!setCC)
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{
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return;
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}
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if (extended)
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{
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//When the operation is extended, it means we are doing
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//the operation on a long word with any number of bits,
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//so we need to AND the zero flag from result with the
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//previous result when extended is specified, to ensure
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//we have ZF set only if all words are zero, and not just
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//the last one.
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Operand oldZF = GetZF(context);
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Operand res = context.BitwiseAnd(context.ICompareEqual(dest, Const(0)), oldZF);
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context.Copy(GetZF(context), res);
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}
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else
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{
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context.Copy(GetZF(context), context.ICompareEqual(dest, Const(0)));
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}
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context.Copy(GetNF(context), context.ICompareLess(dest, Const(0)));
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}
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}
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} |