367 lines
12 KiB
C#
367 lines
12 KiB
C#
using Ryujinx.Graphics.Shader.CodeGen.Glsl;
|
|
using Ryujinx.Graphics.Shader.Decoders;
|
|
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;
|
|
|
|
private struct FunctionCode
|
|
{
|
|
public Operation[] Code { get; }
|
|
|
|
public FunctionCode(Operation[] code)
|
|
{
|
|
Code = code;
|
|
}
|
|
}
|
|
|
|
public static ShaderProgram Translate(
|
|
ulong address,
|
|
IGpuAccessor gpuAccessor,
|
|
TranslationFlags flags,
|
|
TranslationCounts counts = null)
|
|
{
|
|
counts ??= new TranslationCounts();
|
|
|
|
return Translate(DecodeShader(address, gpuAccessor, flags, counts, out ShaderConfig config), config);
|
|
}
|
|
|
|
public static ShaderProgram Translate(
|
|
ulong addressA,
|
|
ulong addressB,
|
|
IGpuAccessor gpuAccessor,
|
|
TranslationFlags flags,
|
|
TranslationCounts counts = null)
|
|
{
|
|
counts ??= new TranslationCounts();
|
|
|
|
FunctionCode[] funcA = DecodeShader(addressA, gpuAccessor, flags | TranslationFlags.VertexA, counts, out ShaderConfig configA);
|
|
FunctionCode[] funcB = DecodeShader(addressB, gpuAccessor, flags, counts, out ShaderConfig config);
|
|
|
|
config.SetUsedFeature(configA.UsedFeatures);
|
|
|
|
return Translate(Combine(funcA, funcB), config, configA.Size);
|
|
}
|
|
|
|
private static ShaderProgram Translate(FunctionCode[] functions, ShaderConfig config, int sizeA = 0)
|
|
{
|
|
var cfgs = new ControlFlowGraph[functions.Length];
|
|
var frus = new RegisterUsage.FunctionRegisterUsage[functions.Length];
|
|
|
|
for (int i = 0; i < functions.Length; i++)
|
|
{
|
|
cfgs[i] = ControlFlowGraph.Create(functions[i].Code);
|
|
|
|
if (i != 0)
|
|
{
|
|
frus[i] = RegisterUsage.RunPass(cfgs[i]);
|
|
}
|
|
}
|
|
|
|
Function[] funcs = new Function[functions.Length];
|
|
|
|
for (int i = 0; i < functions.Length; i++)
|
|
{
|
|
var cfg = cfgs[i];
|
|
|
|
int inArgumentsCount = 0;
|
|
int outArgumentsCount = 0;
|
|
|
|
if (i != 0)
|
|
{
|
|
var fru = frus[i];
|
|
|
|
inArgumentsCount = fru.InArguments.Length;
|
|
outArgumentsCount = fru.OutArguments.Length;
|
|
}
|
|
|
|
if (cfg.Blocks.Length != 0)
|
|
{
|
|
RegisterUsage.FixupCalls(cfg.Blocks, frus);
|
|
|
|
Dominance.FindDominators(cfg);
|
|
|
|
Dominance.FindDominanceFrontiers(cfg.Blocks);
|
|
|
|
Ssa.Rename(cfg.Blocks);
|
|
|
|
Optimizer.RunPass(cfg.Blocks, config);
|
|
|
|
Rewriter.RunPass(cfg.Blocks, config);
|
|
}
|
|
|
|
funcs[i] = new Function(cfg.Blocks, $"fun{i}", false, inArgumentsCount, outArgumentsCount);
|
|
}
|
|
|
|
StructuredProgramInfo sInfo = StructuredProgram.MakeStructuredProgram(funcs, config);
|
|
|
|
GlslProgram program = GlslGenerator.Generate(sInfo, config);
|
|
|
|
ShaderProgramInfo spInfo = new ShaderProgramInfo(
|
|
program.CBufferDescriptors,
|
|
program.SBufferDescriptors,
|
|
program.TextureDescriptors,
|
|
program.ImageDescriptors,
|
|
sInfo.UsesInstanceId);
|
|
|
|
string glslCode = program.Code;
|
|
|
|
return new ShaderProgram(spInfo, config.Stage, glslCode, config.Size, sizeA);
|
|
}
|
|
|
|
private static FunctionCode[] DecodeShader(
|
|
ulong address,
|
|
IGpuAccessor gpuAccessor,
|
|
TranslationFlags flags,
|
|
TranslationCounts counts,
|
|
out ShaderConfig config)
|
|
{
|
|
Block[][] cfg;
|
|
|
|
if ((flags & TranslationFlags.Compute) != 0)
|
|
{
|
|
config = new ShaderConfig(gpuAccessor, flags, counts);
|
|
|
|
cfg = Decoder.Decode(gpuAccessor, address);
|
|
}
|
|
else
|
|
{
|
|
config = new ShaderConfig(new ShaderHeader(gpuAccessor, address), gpuAccessor, flags, counts);
|
|
|
|
cfg = Decoder.Decode(gpuAccessor, address + HeaderSize);
|
|
}
|
|
|
|
if (cfg == null)
|
|
{
|
|
gpuAccessor.Log("Invalid branch detected, failed to build CFG.");
|
|
|
|
return Array.Empty<FunctionCode>();
|
|
}
|
|
|
|
Dictionary<ulong, int> funcIds = new Dictionary<ulong, int>();
|
|
|
|
for (int funcIndex = 0; funcIndex < cfg.Length; funcIndex++)
|
|
{
|
|
funcIds.Add(cfg[funcIndex][0].Address, funcIndex);
|
|
}
|
|
|
|
List<FunctionCode> funcs = new List<FunctionCode>();
|
|
|
|
ulong maxEndAddress = 0;
|
|
|
|
for (int funcIndex = 0; funcIndex < cfg.Length; funcIndex++)
|
|
{
|
|
EmitterContext context = new EmitterContext(config, funcIndex != 0, funcIds);
|
|
|
|
for (int blkIndex = 0; blkIndex < cfg[funcIndex].Length; blkIndex++)
|
|
{
|
|
Block block = cfg[funcIndex][blkIndex];
|
|
|
|
if (maxEndAddress < block.EndAddress)
|
|
{
|
|
maxEndAddress = block.EndAddress;
|
|
}
|
|
|
|
context.CurrBlock = block;
|
|
|
|
context.MarkLabel(context.GetLabel(block.Address));
|
|
|
|
EmitOps(context, block);
|
|
}
|
|
|
|
funcs.Add(new FunctionCode(context.GetOperations()));
|
|
}
|
|
|
|
config.SizeAdd((int)maxEndAddress + (flags.HasFlag(TranslationFlags.Compute) ? 0 : HeaderSize));
|
|
|
|
return funcs.ToArray();
|
|
}
|
|
|
|
internal static void EmitOps(EmitterContext context, Block block)
|
|
{
|
|
for (int opIndex = 0; opIndex < block.OpCodes.Count; opIndex++)
|
|
{
|
|
OpCode op = block.OpCodes[opIndex];
|
|
|
|
if ((context.Config.Flags & TranslationFlags.DebugMode) != 0)
|
|
{
|
|
string instName;
|
|
|
|
if (op.Emitter != null)
|
|
{
|
|
instName = op.Emitter.Method.Name;
|
|
}
|
|
else
|
|
{
|
|
instName = "???";
|
|
|
|
context.Config.GpuAccessor.Log($"Invalid instruction at 0x{op.Address:X6} (0x{op.RawOpCode:X16}).");
|
|
}
|
|
|
|
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 is OpCodeBranch opBranch && !opBranch.PushTarget;
|
|
|
|
if (op is OpCodeBranchPop opBranchPop)
|
|
{
|
|
// If the instruction is a SYNC or BRK 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;
|
|
|
|
op.Emitter?.Invoke(context);
|
|
|
|
if (predSkipLbl != null)
|
|
{
|
|
context.MarkLabel(predSkipLbl);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static FunctionCode[] Combine(FunctionCode[] a, FunctionCode[] 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.
|
|
FunctionCode[] output = new FunctionCode[a.Length + b.Length - 1];
|
|
|
|
List<Operation> ops = new List<Operation>(a.Length + b.Length);
|
|
|
|
Operand[] temps = new Operand[AttributeConsts.UserAttributesCount * 4];
|
|
|
|
Operand lblB = Label();
|
|
|
|
for (int index = 0; index < a[0].Code.Length; index++)
|
|
{
|
|
Operation operation = a[0].Code[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)
|
|
{
|
|
ops.Add(new Operation(Instruction.Branch, lblB));
|
|
}
|
|
else
|
|
{
|
|
ops.Add(operation);
|
|
}
|
|
}
|
|
|
|
ops.Add(new Operation(Instruction.MarkLabel, lblB));
|
|
|
|
for (int index = 0; index < b[0].Code.Length; index++)
|
|
{
|
|
Operation operation = b[0].Code[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);
|
|
}
|
|
}
|
|
}
|
|
|
|
ops.Add(operation);
|
|
}
|
|
|
|
output[0] = new FunctionCode(ops.ToArray());
|
|
|
|
for (int i = 1; i < a.Length; i++)
|
|
{
|
|
output[i] = a[i];
|
|
}
|
|
|
|
for (int i = 1; i < b.Length; i++)
|
|
{
|
|
output[a.Length + i - 1] = b[i];
|
|
}
|
|
|
|
return output;
|
|
}
|
|
|
|
private static bool IsUserAttribute(Operand operand)
|
|
{
|
|
return operand != null &&
|
|
operand.Type == OperandType.Attribute &&
|
|
operand.Value >= AttributeConsts.UserAttributeBase &&
|
|
operand.Value < AttributeConsts.UserAttributeEnd;
|
|
}
|
|
}
|
|
} |