Ryujinx/Ryujinx.Graphics.Shader/Decoders/Block.cs

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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 01:57:08 +02:00
using System;
using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.Decoders
{
class Block
{
public ulong Address { get; set; }
public ulong EndAddress { get; set; }
public Block Next { get; set; }
public Block Branch { get; set; }
public List<OpCode> OpCodes { get; }
public List<OpCodeSsy> SsyOpCodes { get; }
public Block(ulong address)
{
Address = address;
OpCodes = new List<OpCode>();
SsyOpCodes = new List<OpCodeSsy>();
}
public void Split(Block rightBlock)
{
int splitIndex = BinarySearch(OpCodes, rightBlock.Address);
if (OpCodes[splitIndex].Address < rightBlock.Address)
{
splitIndex++;
}
int splitCount = OpCodes.Count - splitIndex;
if (splitCount <= 0)
{
throw new ArgumentException("Can't split at right block address.");
}
rightBlock.EndAddress = EndAddress;
rightBlock.Next = Next;
rightBlock.Branch = Branch;
rightBlock.OpCodes.AddRange(OpCodes.GetRange(splitIndex, splitCount));
rightBlock.UpdateSsyOpCodes();
EndAddress = rightBlock.Address;
Next = rightBlock;
Branch = null;
OpCodes.RemoveRange(splitIndex, splitCount);
UpdateSsyOpCodes();
}
private static int BinarySearch(List<OpCode> opCodes, ulong address)
{
int left = 0;
int middle = 0;
int right = opCodes.Count - 1;
while (left <= right)
{
int size = right - left;
middle = left + (size >> 1);
OpCode opCode = opCodes[middle];
if (address == opCode.Address)
{
break;
}
if (address < opCode.Address)
{
right = middle - 1;
}
else
{
left = middle + 1;
}
}
return middle;
}
public OpCode GetLastOp()
{
if (OpCodes.Count != 0)
{
return OpCodes[OpCodes.Count - 1];
}
return null;
}
public void UpdateSsyOpCodes()
{
SsyOpCodes.Clear();
for (int index = 0; index < OpCodes.Count; index++)
{
if (!(OpCodes[index] is OpCodeSsy op))
{
continue;
}
SsyOpCodes.Add(op);
}
}
}
}