344 lines
11 KiB
C#
344 lines
11 KiB
C#
using Ryujinx.Graphics.Shader.CodeGen.Glsl;
|
|
using Ryujinx.Graphics.Shader.Decoders;
|
|
using Ryujinx.Graphics.Shader.Instructions;
|
|
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
|
|
using Ryujinx.Graphics.Shader.StructuredIr;
|
|
using Ryujinx.Graphics.Shader.Translation.Optimizations;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
|
|
using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
|
|
|
|
namespace Ryujinx.Graphics.Shader.Translation
|
|
{
|
|
public static class Translator
|
|
{
|
|
private const int HeaderSize = 0x50;
|
|
|
|
public static Span<byte> ExtractCode(Span<byte> code, bool compute, out int headerSize)
|
|
{
|
|
if (compute)
|
|
{
|
|
headerSize = 0;
|
|
}
|
|
else
|
|
{
|
|
headerSize = HeaderSize;
|
|
}
|
|
|
|
Block[] cfg = Decoder.Decode(code, (ulong)headerSize);
|
|
|
|
ulong endAddress = 0;
|
|
|
|
foreach (Block block in cfg)
|
|
{
|
|
if (endAddress < block.EndAddress)
|
|
{
|
|
endAddress = block.EndAddress;
|
|
}
|
|
}
|
|
|
|
return code.Slice(0, headerSize + (int)endAddress);
|
|
}
|
|
|
|
public static ShaderProgram Translate(Span<byte> code, TranslationConfig translationConfig)
|
|
{
|
|
bool compute = (translationConfig.Flags & TranslationFlags.Compute) != 0;
|
|
bool debugMode = (translationConfig.Flags & TranslationFlags.DebugMode) != 0;
|
|
|
|
Operation[] ops = DecodeShader(
|
|
code,
|
|
compute,
|
|
debugMode,
|
|
out ShaderHeader header,
|
|
out int size);
|
|
|
|
ShaderStage stage;
|
|
|
|
if (compute)
|
|
{
|
|
stage = ShaderStage.Compute;
|
|
}
|
|
else
|
|
{
|
|
stage = header.Stage;
|
|
}
|
|
|
|
int maxOutputVertexCount = 0;
|
|
|
|
OutputTopology outputTopology = OutputTopology.LineStrip;
|
|
|
|
if (!compute)
|
|
{
|
|
maxOutputVertexCount = header.MaxOutputVertexCount;
|
|
outputTopology = header.OutputTopology;
|
|
}
|
|
|
|
ShaderConfig config = new ShaderConfig(
|
|
stage,
|
|
translationConfig.Flags,
|
|
translationConfig.MaxCBufferSize,
|
|
maxOutputVertexCount,
|
|
outputTopology);
|
|
|
|
return Translate(ops, config, size);
|
|
}
|
|
|
|
public static ShaderProgram Translate(Span<byte> vpACode, Span<byte> vpBCode, TranslationConfig translationConfig)
|
|
{
|
|
bool debugMode = (translationConfig.Flags & TranslationFlags.DebugMode) != 0;
|
|
|
|
Operation[] vpAOps = DecodeShader(vpACode, compute: false, debugMode, out _, out _);
|
|
Operation[] vpBOps = DecodeShader(vpBCode, compute: false, debugMode, out ShaderHeader header, out int sizeB);
|
|
|
|
ShaderConfig config = new ShaderConfig(
|
|
header.Stage,
|
|
translationConfig.Flags,
|
|
translationConfig.MaxCBufferSize,
|
|
header.MaxOutputVertexCount,
|
|
header.OutputTopology);
|
|
|
|
return Translate(Combine(vpAOps, vpBOps), config, sizeB);
|
|
}
|
|
|
|
private static ShaderProgram Translate(Operation[] ops, ShaderConfig config, int size)
|
|
{
|
|
BasicBlock[] irBlocks = ControlFlowGraph.MakeCfg(ops);
|
|
|
|
Dominance.FindDominators(irBlocks[0], irBlocks.Length);
|
|
|
|
Dominance.FindDominanceFrontiers(irBlocks);
|
|
|
|
Ssa.Rename(irBlocks);
|
|
|
|
Optimizer.Optimize(irBlocks, config.Stage);
|
|
|
|
StructuredProgramInfo sInfo = StructuredProgram.MakeStructuredProgram(irBlocks, config);
|
|
|
|
GlslProgram program = GlslGenerator.Generate(sInfo, config);
|
|
|
|
ShaderProgramInfo spInfo = new ShaderProgramInfo(
|
|
program.CBufferDescriptors,
|
|
program.SBufferDescriptors,
|
|
program.TextureDescriptors,
|
|
program.ImageDescriptors,
|
|
sInfo.InterpolationQualifiers,
|
|
sInfo.UsesInstanceId);
|
|
|
|
string glslCode = program.Code;
|
|
|
|
return new ShaderProgram(spInfo, config.Stage, glslCode, size);
|
|
}
|
|
|
|
private static Operation[] DecodeShader(
|
|
Span<byte> code,
|
|
bool compute,
|
|
bool debugMode,
|
|
out ShaderHeader header,
|
|
out int size)
|
|
{
|
|
Block[] cfg;
|
|
|
|
EmitterContext context;
|
|
|
|
if (compute)
|
|
{
|
|
header = null;
|
|
|
|
cfg = Decoder.Decode(code, 0);
|
|
|
|
context = new EmitterContext(ShaderStage.Compute, header);
|
|
}
|
|
else
|
|
{
|
|
header = new ShaderHeader(code);
|
|
|
|
cfg = Decoder.Decode(code, HeaderSize);
|
|
|
|
context = new EmitterContext(header.Stage, header);
|
|
}
|
|
|
|
ulong maxEndAddress = 0;
|
|
|
|
for (int blkIndex = 0; blkIndex < cfg.Length; blkIndex++)
|
|
{
|
|
Block block = cfg[blkIndex];
|
|
|
|
if (maxEndAddress < block.EndAddress)
|
|
{
|
|
maxEndAddress = block.EndAddress;
|
|
}
|
|
|
|
context.CurrBlock = block;
|
|
|
|
context.MarkLabel(context.GetLabel(block.Address));
|
|
|
|
for (int opIndex = 0; opIndex < block.OpCodes.Count; opIndex++)
|
|
{
|
|
OpCode op = block.OpCodes[opIndex];
|
|
|
|
if (debugMode)
|
|
{
|
|
string instName;
|
|
|
|
if (op.Emitter != null)
|
|
{
|
|
instName = op.Emitter.Method.Name;
|
|
}
|
|
else
|
|
{
|
|
instName = "???";
|
|
}
|
|
|
|
string dbgComment = $"0x{op.Address:X6}: 0x{op.RawOpCode:X16} {instName}";
|
|
|
|
context.Add(new CommentNode(dbgComment));
|
|
}
|
|
|
|
if (op.NeverExecute)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
Operand predSkipLbl = null;
|
|
|
|
bool skipPredicateCheck = op.Emitter == InstEmit.Bra;
|
|
|
|
if (op is OpCodeBranchPop opBranchPop)
|
|
{
|
|
// If the instruction is a SYNC instruction with only one
|
|
// possible target address, then the instruction is basically
|
|
// just a simple branch, we can generate code similar to branch
|
|
// instructions, with the condition check on the branch itself.
|
|
skipPredicateCheck |= opBranchPop.Targets.Count < 2;
|
|
}
|
|
|
|
if (!(op.Predicate.IsPT || skipPredicateCheck))
|
|
{
|
|
Operand label;
|
|
|
|
if (opIndex == block.OpCodes.Count - 1 && block.Next != null)
|
|
{
|
|
label = context.GetLabel(block.Next.Address);
|
|
}
|
|
else
|
|
{
|
|
label = Label();
|
|
|
|
predSkipLbl = label;
|
|
}
|
|
|
|
Operand pred = Register(op.Predicate);
|
|
|
|
if (op.InvertPredicate)
|
|
{
|
|
context.BranchIfTrue(label, pred);
|
|
}
|
|
else
|
|
{
|
|
context.BranchIfFalse(label, pred);
|
|
}
|
|
}
|
|
|
|
context.CurrOp = op;
|
|
|
|
if (op.Emitter != null)
|
|
{
|
|
op.Emitter(context);
|
|
}
|
|
|
|
if (predSkipLbl != null)
|
|
{
|
|
context.MarkLabel(predSkipLbl);
|
|
}
|
|
}
|
|
}
|
|
|
|
size = (int)maxEndAddress + (compute ? 0 : HeaderSize);
|
|
|
|
return context.GetOperations();
|
|
}
|
|
|
|
private static Operation[] Combine(Operation[] a, Operation[] b)
|
|
{
|
|
// Here we combine two shaders.
|
|
// For shader A:
|
|
// - All user attribute stores on shader A are turned into copies to a
|
|
// temporary variable. It's assumed that shader B will consume them.
|
|
// - All return instructions are turned into branch instructions, the
|
|
// branch target being the start of the shader B code.
|
|
// For shader B:
|
|
// - All user attribute loads on shader B are turned into copies from a
|
|
// temporary variable, as long that attribute is written by shader A.
|
|
List<Operation> output = new List<Operation>(a.Length + b.Length);
|
|
|
|
Operand[] temps = new Operand[AttributeConsts.UserAttributesCount * 4];
|
|
|
|
Operand lblB = Label();
|
|
|
|
for (int index = 0; index < a.Length; index++)
|
|
{
|
|
Operation operation = a[index];
|
|
|
|
if (IsUserAttribute(operation.Dest))
|
|
{
|
|
int tIndex = (operation.Dest.Value - AttributeConsts.UserAttributeBase) / 4;
|
|
|
|
Operand temp = temps[tIndex];
|
|
|
|
if (temp == null)
|
|
{
|
|
temp = Local();
|
|
|
|
temps[tIndex] = temp;
|
|
}
|
|
|
|
operation.Dest = temp;
|
|
}
|
|
|
|
if (operation.Inst == Instruction.Return)
|
|
{
|
|
output.Add(new Operation(Instruction.Branch, lblB));
|
|
}
|
|
else
|
|
{
|
|
output.Add(operation);
|
|
}
|
|
}
|
|
|
|
output.Add(new Operation(Instruction.MarkLabel, lblB));
|
|
|
|
for (int index = 0; index < b.Length; index++)
|
|
{
|
|
Operation operation = b[index];
|
|
|
|
for (int srcIndex = 0; srcIndex < operation.SourcesCount; srcIndex++)
|
|
{
|
|
Operand src = operation.GetSource(srcIndex);
|
|
|
|
if (IsUserAttribute(src))
|
|
{
|
|
Operand temp = temps[(src.Value - AttributeConsts.UserAttributeBase) / 4];
|
|
|
|
if (temp != null)
|
|
{
|
|
operation.SetSource(srcIndex, temp);
|
|
}
|
|
}
|
|
}
|
|
|
|
output.Add(operation);
|
|
}
|
|
|
|
return output.ToArray();
|
|
}
|
|
|
|
private static bool IsUserAttribute(Operand operand)
|
|
{
|
|
return operand != null &&
|
|
operand.Type == OperandType.Attribute &&
|
|
operand.Value >= AttributeConsts.UserAttributeBase &&
|
|
operand.Value < AttributeConsts.UserAttributeEnd;
|
|
}
|
|
}
|
|
} |