Mirrors/Ryujinx
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add partial support for the BRX shader instruction

Browse source
This commit is contained in:
gdk 2019-11-14 14:20:30 -03:00 committed by Thog
parent d274328c31
commit f0a59f345c
15 changed files with 242 additions and 126 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
Ryujinx.Graphics.Shader/Decoders/Block.cs
View file

@ -11,15 +11,17 @@ namespace Ryujinx.Graphics.Shader.Decoders
public Block Next { get; set; } public Block Next { get; set; }
public Block Branch { get; set; } public Block Branch { get; set; }
public List<OpCode> OpCodes { get; } public OpCodeBranchIndir BrIndir { get; set; }
public List<OpCodeSsy> SsyOpCodes { get; }
public List<OpCode> OpCodes { get; }
public List<OpCodePush> PushOpCodes { get; }
public Block(ulong address) public Block(ulong address)
{ {
Address = address; Address = address;
OpCodes = new List<OpCode>(); OpCodes = new List<OpCode>();
SsyOpCodes = new List<OpCodeSsy>(); PushOpCodes = new List<OpCodePush>();
} }
public void Split(Block rightBlock) public void Split(Block rightBlock)
@ -45,7 +47,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
rightBlock.OpCodes.AddRange(OpCodes.GetRange(splitIndex, splitCount)); rightBlock.OpCodes.AddRange(OpCodes.GetRange(splitIndex, splitCount));
rightBlock.UpdateSsyOpCodes(); rightBlock.UpdatePushOps();
EndAddress = rightBlock.Address; EndAddress = rightBlock.Address;
@ -54,7 +56,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
OpCodes.RemoveRange(splitIndex, splitCount); OpCodes.RemoveRange(splitIndex, splitCount);
UpdateSsyOpCodes(); UpdatePushOps();
} }
private static int BinarySearch(List<OpCode> opCodes, ulong address) private static int BinarySearch(List<OpCode> opCodes, ulong address)
@ -99,18 +101,18 @@ namespace Ryujinx.Graphics.Shader.Decoders
return null; return null;
} }
public void UpdateSsyOpCodes() public void UpdatePushOps()
{ {
SsyOpCodes.Clear(); PushOpCodes.Clear();
for (int index = 0; index < OpCodes.Count; index++) for (int index = 0; index < OpCodes.Count; index++)
{ {
if (!(OpCodes[index] is OpCodeSsy op)) if (!(OpCodes[index] is OpCodePush op))
{ {
continue; continue;
} }
SsyOpCodes.Add(op); PushOpCodes.Add(op);
} }
} }
} }

140
Ryujinx.Graphics.Shader/Decoders/Decoder.cs
View file

@ -43,9 +43,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
return block; return block;
} }
ulong startAddress = headerSize; GetBlock(0);
GetBlock(startAddress);
while (workQueue.TryDequeue(out Block currBlock)) while (workQueue.TryDequeue(out Block currBlock))
{ {
@ -67,7 +65,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
} }
// If we have a block after the current one, set the limit address. // If we have a block after the current one, set the limit address.
ulong limitAddress = (ulong)code.Length; ulong limitAddress = (ulong)code.Length - headerSize;
if (nBlkIndex != blocks.Count) if (nBlkIndex != blocks.Count)
{ {
@ -85,13 +83,15 @@ namespace Ryujinx.Graphics.Shader.Decoders
} }
} }
FillBlock(code, currBlock, limitAddress, startAddress); FillBlock(code, currBlock, limitAddress, headerSize);
if (currBlock.OpCodes.Count != 0) if (currBlock.OpCodes.Count != 0)
{ {
foreach (OpCodeSsy ssyOp in currBlock.SsyOpCodes) // We should have blocks for all possible branch targets,
// including those from SSY/PBK instructions.
foreach (OpCodePush pushOp in currBlock.PushOpCodes)
{ {
GetBlock(ssyOp.GetAbsoluteAddress()); GetBlock(pushOp.GetAbsoluteAddress());
} }
// Set child blocks. "Branch" is the block the branch instruction // Set child blocks. "Branch" is the block the branch instruction
@ -100,9 +100,25 @@ namespace Ryujinx.Graphics.Shader.Decoders
// or end of program, Next is null. // or end of program, Next is null.
OpCode lastOp = currBlock.GetLastOp(); OpCode lastOp = currBlock.GetLastOp();
if (lastOp is OpCodeBranch op) if (lastOp is OpCodeBranch opBr)
{ {
currBlock.Branch = GetBlock(op.GetAbsoluteAddress()); currBlock.Branch = GetBlock(opBr.GetAbsoluteAddress());
}
else if (lastOp is OpCodeBranchIndir opBrIndir)
{
// An indirect branch could go anywhere, we don't know the target.
// Those instructions are usually used on a switch to jump table
// compiler optimization, and in those cases the possible targets
// seems to be always right after the BRX itself. We can assume
// that the possible targets are all the blocks in-between the
// instruction right after the BRX, and the common target that
// all the "cases" should eventually jump to, acting as the
// switch break.
Block firstTarget = GetBlock(currBlock.EndAddress);
firstTarget.BrIndir = opBrIndir;
opBrIndir.PossibleTargets.Add(firstTarget);
} }
if (!IsUnconditionalBranch(lastOp)) if (!IsUnconditionalBranch(lastOp))
@ -122,13 +138,28 @@ namespace Ryujinx.Graphics.Shader.Decoders
{ {
blocks.Add(currBlock); blocks.Add(currBlock);
} }
// Do we have a block after the current one?
if (!IsExit(currBlock.GetLastOp()) && currBlock.BrIndir != null)
{
bool targetVisited = visited.ContainsKey(currBlock.EndAddress);
Block possibleTarget = GetBlock(currBlock.EndAddress);
currBlock.BrIndir.PossibleTargets.Add(possibleTarget);
if (!targetVisited)
{
possibleTarget.BrIndir = currBlock.BrIndir;
}
}
} }
foreach (Block ssyBlock in blocks.Where(x => x.SsyOpCodes.Count != 0)) foreach (Block block in blocks.Where(x => x.PushOpCodes.Count != 0))
{ {
for (int ssyIndex = 0; ssyIndex < ssyBlock.SsyOpCodes.Count; ssyIndex++) for (int pushOpIndex = 0; pushOpIndex < block.PushOpCodes.Count; pushOpIndex++)
{ {
PropagateSsy(visited, ssyBlock, ssyIndex); PropagatePushOp(visited, block, pushOpIndex);
} }
} }
@ -180,21 +211,21 @@ namespace Ryujinx.Graphics.Shader.Decoders
do do
{ {
if (address >= limitAddress) if (address + 7 >= limitAddress)
{ {
break; break;
} }
// Ignore scheduling instructions, which are written every 32 bytes. // Ignore scheduling instructions, which are written every 32 bytes.
if (((address - startAddress) & 0x1f) == 0) if ((address & 0x1f) == 0)
{ {
address += 8; address += 8;
continue; continue;
} }
uint word0 = BinaryPrimitives.ReadUInt32LittleEndian(code.Slice((int)address)); uint word0 = BinaryPrimitives.ReadUInt32LittleEndian(code.Slice((int)(startAddress + address)));
uint word1 = BinaryPrimitives.ReadUInt32LittleEndian(code.Slice((int)address + 4)); uint word1 = BinaryPrimitives.ReadUInt32LittleEndian(code.Slice((int)(startAddress + address + 4)));
ulong opAddress = address; ulong opAddress = address;
@ -221,7 +252,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
block.EndAddress = address; block.EndAddress = address;
block.UpdateSsyOpCodes(); block.UpdatePushOps();
} }
private static bool IsUnconditionalBranch(OpCode opCode) private static bool IsUnconditionalBranch(OpCode opCode)
@ -242,10 +273,16 @@ namespace Ryujinx.Graphics.Shader.Decoders
private static bool IsBranch(OpCode opCode) private static bool IsBranch(OpCode opCode)
{ {
return (opCode is OpCodeBranch opBranch && !opBranch.PushTarget) || return (opCode is OpCodeBranch opBranch && !opBranch.PushTarget) ||
opCode is OpCodeSync || opCode is OpCodeBranchIndir ||
opCode is OpCodeBranchPop ||
opCode is OpCodeExit; opCode is OpCodeExit;
} }
private static bool IsExit(OpCode opCode)
{
return opCode is OpCodeExit;
}
private static OpCode MakeOpCode(Type type, InstEmitter emitter, ulong address, long opCode) private static OpCode MakeOpCode(Type type, InstEmitter emitter, ulong address, long opCode)
{ {
if (type == null) if (type == null)
@ -282,8 +319,8 @@ namespace Ryujinx.Graphics.Shader.Decoders
private enum RestoreType private enum RestoreType
{ {
None, None,
PopSsy, PopPushOp,
PushSync PushBranchOp
} }
private RestoreType _restoreType; private RestoreType _restoreType;
@ -299,45 +336,45 @@ namespace Ryujinx.Graphics.Shader.Decoders
_restoreValue = 0; _restoreValue = 0;
} }
public PathBlockState(int oldSsyStackSize) public PathBlockState(int oldStackSize)
{ {
Block = null; Block = null;
_restoreType = RestoreType.PopSsy; _restoreType = RestoreType.PopPushOp;
_restoreValue = (ulong)oldSsyStackSize; _restoreValue = (ulong)oldStackSize;
} }
public PathBlockState(ulong syncAddress) public PathBlockState(ulong syncAddress)
{ {
Block = null; Block = null;
_restoreType = RestoreType.PushSync; _restoreType = RestoreType.PushBranchOp;
_restoreValue = syncAddress; _restoreValue = syncAddress;
} }
public void RestoreStackState(Stack<ulong> ssyStack) public void RestoreStackState(Stack<ulong> branchStack)
{ {
if (_restoreType == RestoreType.PushSync) if (_restoreType == RestoreType.PushBranchOp)
{ {
ssyStack.Push(_restoreValue); branchStack.Push(_restoreValue);
} }
else if (_restoreType == RestoreType.PopSsy) else if (_restoreType == RestoreType.PopPushOp)
{ {
while (ssyStack.Count > (uint)_restoreValue) while (branchStack.Count > (uint)_restoreValue)
{ {
ssyStack.Pop(); branchStack.Pop();
} }
} }
} }
} }
private static void PropagateSsy(Dictionary<ulong, Block> blocks, Block ssyBlock, int ssyIndex) private static void PropagatePushOp(Dictionary<ulong, Block> blocks, Block currBlock, int pushOpIndex)
{ {
OpCodeSsy ssyOp = ssyBlock.SsyOpCodes[ssyIndex]; OpCodePush pushOp = currBlock.PushOpCodes[pushOpIndex];
Stack<PathBlockState> workQueue = new Stack<PathBlockState>(); Stack<PathBlockState> workQueue = new Stack<PathBlockState>();
HashSet<Block> visited = new HashSet<Block>(); HashSet<Block> visited = new HashSet<Block>();
Stack<ulong> ssyStack = new Stack<ulong>(); Stack<ulong> branchStack = new Stack<ulong>();
void Push(PathBlockState pbs) void Push(PathBlockState pbs)
{ {
@ -347,32 +384,32 @@ namespace Ryujinx.Graphics.Shader.Decoders
} }
} }
Push(new PathBlockState(ssyBlock)); Push(new PathBlockState(currBlock));
while (workQueue.TryPop(out PathBlockState pbs)) while (workQueue.TryPop(out PathBlockState pbs))
{ {
if (pbs.ReturningFromVisit) if (pbs.ReturningFromVisit)
{ {
pbs.RestoreStackState(ssyStack); pbs.RestoreStackState(branchStack);
continue; continue;
} }
Block current = pbs.Block; Block current = pbs.Block;
int ssyOpCodesCount = current.SsyOpCodes.Count; int pushOpsCount = current.PushOpCodes.Count;
if (ssyOpCodesCount != 0) if (pushOpsCount != 0)
{ {
Push(new PathBlockState(ssyStack.Count)); Push(new PathBlockState(branchStack.Count));
for (int index = ssyIndex; index < ssyOpCodesCount; index++) for (int index = pushOpIndex; index < pushOpsCount; index++)
{ {
ssyStack.Push(current.SsyOpCodes[index].GetAbsoluteAddress()); branchStack.Push(current.PushOpCodes[index].GetAbsoluteAddress());
} }
} }
ssyIndex = 0; pushOpIndex = 0;
if (current.Next != null) if (current.Next != null)
{ {
@ -383,17 +420,24 @@ namespace Ryujinx.Graphics.Shader.Decoders
{ {
Push(new PathBlockState(current.Branch)); Push(new PathBlockState(current.Branch));
} }
else if (current.GetLastOp() is OpCodeSync op) else if (current.GetLastOp() is OpCodeBranchIndir brIndir)
{ {
ulong syncAddress = ssyStack.Pop(); foreach (Block possibleTarget in brIndir.PossibleTargets)
if (ssyStack.Count == 0)
{ {
ssyStack.Push(syncAddress); Push(new PathBlockState(possibleTarget));
}
}
else if (current.GetLastOp() is OpCodeBranchPop op)
{
ulong syncAddress = branchStack.Pop();
op.Targets.Add(ssyOp, op.Targets.Count); if (branchStack.Count == 0)
{
branchStack.Push(syncAddress);
ssyOp.Syncs.TryAdd(op, Local()); op.Targets.Add(pushOp, op.Targets.Count);
pushOp.PopOps.TryAdd(op, Local());
} }
else else
{ {

2
Ryujinx.Graphics.Shader/Decoders/FmulScale.cs → Ryujinx.Graphics.Shader/Decoders/FPMultiplyScale.cs
View file

@ -1,6 +1,6 @@
namespace Ryujinx.Graphics.Shader.Decoders namespace Ryujinx.Graphics.Shader.Decoders
{ {
enum FmulScale enum FPMultiplyScale
{ {
None = 0, None = 0,
Divide2 = 1, Divide2 = 1,

2
Ryujinx.Graphics.Shader/Decoders/IOpCodeFArith.cs
View file

@ -4,7 +4,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
{ {
RoundingMode RoundingMode { get; } RoundingMode RoundingMode { get; }
FmulScale Scale { get; } FPMultiplyScale Scale { get; }
bool FlushToZero { get; } bool FlushToZero { get; }
bool AbsoluteA { get; } bool AbsoluteA { get; }

23
Ryujinx.Graphics.Shader/Decoders/OpCodeBranchIndir.cs Normal file
View file

@ -0,0 +1,23 @@
using Ryujinx.Graphics.Shader.Instructions;
using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.Decoders
{
class OpCodeBranchIndir : OpCode
{
public HashSet<Block> PossibleTargets { get; }
public Register Ra { get; }
public int Offset { get; }
public OpCodeBranchIndir(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode)
{
PossibleTargets = new HashSet<Block>();
Ra = new Register(opCode.Extract(8, 8), RegisterType.Gpr);
Offset = ((int)(opCode >> 20) << 8) >> 8;
}
}
}

15
Ryujinx.Graphics.Shader/Decoders/OpCodeBranchPop.cs Normal file
View file

@ -0,0 +1,15 @@
using Ryujinx.Graphics.Shader.Instructions;
using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.Decoders
{
class OpCodeBranchPop : OpCode
{
public Dictionary<OpCodePush, int> Targets { get; }
public OpCodeBranchPop(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode)
{
Targets = new Dictionary<OpCodePush, int>();
}
}
}

4
Ryujinx.Graphics.Shader/Decoders/OpCodeFArith.cs
View file

@ -6,7 +6,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
{ {
public RoundingMode RoundingMode { get; } public RoundingMode RoundingMode { get; }
public FmulScale Scale { get; } public FPMultiplyScale Scale { get; }
public bool FlushToZero { get; } public bool FlushToZero { get; }
public bool AbsoluteA { get; } public bool AbsoluteA { get; }
@ -15,7 +15,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
{ {
RoundingMode = (RoundingMode)opCode.Extract(39, 2); RoundingMode = (RoundingMode)opCode.Extract(39, 2);
Scale = (FmulScale)opCode.Extract(41, 3); Scale = (FPMultiplyScale)opCode.Extract(41, 3);
FlushToZero = opCode.Extract(44); FlushToZero = opCode.Extract(44);
AbsoluteA = opCode.Extract(46); AbsoluteA = opCode.Extract(46);

2
Ryujinx.Graphics.Shader/Decoders/OpCodeFArithImm32.cs
View file

@ -7,7 +7,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
{ {
public RoundingMode RoundingMode => RoundingMode.ToNearest; public RoundingMode RoundingMode => RoundingMode.ToNearest;
public FmulScale Scale => FmulScale.None; public FPMultiplyScale Scale => FPMultiplyScale.None;
public bool FlushToZero { get; } public bool FlushToZero { get; }
public bool AbsoluteA { get; } public bool AbsoluteA { get; }

8
Ryujinx.Graphics.Shader/Decoders/OpCodeSsy.cs → Ryujinx.Graphics.Shader/Decoders/OpCodePush.cs
View file

@ -4,13 +4,13 @@ using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.Decoders namespace Ryujinx.Graphics.Shader.Decoders
{ {
class OpCodeSsy : OpCodeBranch class OpCodePush : OpCodeBranch
{ {
public Dictionary<OpCodeSync, Operand> Syncs { get; } public Dictionary<OpCodeBranchPop, Operand> PopOps { get; }
public OpCodeSsy(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode) public OpCodePush(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode)
{ {
Syncs = new Dictionary<OpCodeSync, Operand>(); PopOps = new Dictionary<OpCodeBranchPop, Operand>();
Predicate = new Register(RegisterConsts.PredicateTrueIndex, RegisterType.Predicate); Predicate = new Register(RegisterConsts.PredicateTrueIndex, RegisterType.Predicate);

15
Ryujinx.Graphics.Shader/Decoders/OpCodeSync.cs
View file

@ -1,15 +0,0 @@
using Ryujinx.Graphics.Shader.Instructions;
using System.Collections.Generic;
namespace Ryujinx.Graphics.Shader.Decoders
{
class OpCodeSync : OpCode
{
public Dictionary<OpCodeSsy, int> Targets { get; }
public OpCodeSync(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode)
{
Targets = new Dictionary<OpCodeSsy, int>();
}
}
}

9
Ryujinx.Graphics.Shader/Decoders/OpCodeTable.cs
View file

@ -41,7 +41,8 @@ namespace Ryujinx.Graphics.Shader.Decoders
Set("0101001111110x", InstEmit.Bfi, typeof(OpCodeAluRegCbuf)); Set("0101001111110x", InstEmit.Bfi, typeof(OpCodeAluRegCbuf));
Set("0101101111110x", InstEmit.Bfi, typeof(OpCodeAluReg)); Set("0101101111110x", InstEmit.Bfi, typeof(OpCodeAluReg));
Set("111000100100xx", InstEmit.Bra, typeof(OpCodeBranch)); Set("111000100100xx", InstEmit.Bra, typeof(OpCodeBranch));
Set("111000110100xx", InstEmit.Brk, typeof(OpCodeSync)); Set("111000110100xx", InstEmit.Brk, typeof(OpCodeBranchPop));
Set("111000100101xx", InstEmit.Brx, typeof(OpCodeBranchIndir));
Set("0101000010100x", InstEmit.Csetp, typeof(OpCodePsetp)); Set("0101000010100x", InstEmit.Csetp, typeof(OpCodePsetp));
Set("111000110000xx", InstEmit.Exit, typeof(OpCodeExit)); Set("111000110000xx", InstEmit.Exit, typeof(OpCodeExit));
Set("0100110010101x", InstEmit.F2F, typeof(OpCodeFArithCbuf)); Set("0100110010101x", InstEmit.F2F, typeof(OpCodeFArithCbuf));
@ -137,7 +138,7 @@ namespace Ryujinx.Graphics.Shader.Decoders
Set("0101110010011x", InstEmit.Mov, typeof(OpCodeAluReg)); Set("0101110010011x", InstEmit.Mov, typeof(OpCodeAluReg));
Set("0101000010000x", InstEmit.Mufu, typeof(OpCodeFArith)); Set("0101000010000x", InstEmit.Mufu, typeof(OpCodeFArith));
Set("1111101111100x", InstEmit.Out, typeof(OpCode)); Set("1111101111100x", InstEmit.Out, typeof(OpCode));
Set("111000101010xx", InstEmit.Pbk, typeof(OpCodeSsy)); Set("111000101010xx", InstEmit.Pbk, typeof(OpCodePush));
Set("0100110000001x", InstEmit.Popc, typeof(OpCodeAluCbuf)); Set("0100110000001x", InstEmit.Popc, typeof(OpCodeAluCbuf));
Set("0011100x00001x", InstEmit.Popc, typeof(OpCodeAluImm)); Set("0011100x00001x", InstEmit.Popc, typeof(OpCodeAluImm));
Set("0101110000001x", InstEmit.Popc, typeof(OpCodeAluReg)); Set("0101110000001x", InstEmit.Popc, typeof(OpCodeAluReg));
@ -157,12 +158,12 @@ namespace Ryujinx.Graphics.Shader.Decoders
Set("0100110000101x", InstEmit.Shr, typeof(OpCodeAluCbuf)); Set("0100110000101x", InstEmit.Shr, typeof(OpCodeAluCbuf));
Set("0011100x00101x", InstEmit.Shr, typeof(OpCodeAluImm)); Set("0011100x00101x", InstEmit.Shr, typeof(OpCodeAluImm));
Set("0101110000101x", InstEmit.Shr, typeof(OpCodeAluReg)); Set("0101110000101x", InstEmit.Shr, typeof(OpCodeAluReg));
Set("111000101001xx", InstEmit.Ssy, typeof(OpCodeSsy)); Set("111000101001xx", InstEmit.Ssy, typeof(OpCodePush));
Set("1110111101010x", InstEmit.St, typeof(OpCodeMemory)); Set("1110111101010x", InstEmit.St, typeof(OpCodeMemory));
Set("1110111011011x", InstEmit.Stg, typeof(OpCodeMemory)); Set("1110111011011x", InstEmit.Stg, typeof(OpCodeMemory));
Set("1110111101011x", InstEmit.Sts, typeof(OpCodeMemory)); Set("1110111101011x", InstEmit.Sts, typeof(OpCodeMemory));
Set("11101011001xxx", InstEmit.Sust, typeof(OpCodeImage)); Set("11101011001xxx", InstEmit.Sust, typeof(OpCodeImage));
Set("1111000011111x", InstEmit.Sync, typeof(OpCodeSync)); Set("1111000011111x", InstEmit.Sync, typeof(OpCodeBranchPop));
Set("110000xxxx111x", InstEmit.Tex, typeof(OpCodeTex)); Set("110000xxxx111x", InstEmit.Tex, typeof(OpCodeTex));
Set("1101111010111x", InstEmit.TexB, typeof(OpCodeTexB)); Set("1101111010111x", InstEmit.TexB, typeof(OpCodeTexB));
Set("1101x00xxxxxxx", InstEmit.Texs, typeof(OpCodeTexs)); Set("1101x00xxxxxxx", InstEmit.Texs, typeof(OpCodeTexs));

14
Ryujinx.Graphics.Shader/Instructions/InstEmitFArith.cs
View file

@ -97,14 +97,14 @@ namespace Ryujinx.Graphics.Shader.Instructions
switch (op.Scale) switch (op.Scale)
{ {
case FmulScale.None: break; case FPMultiplyScale.None: break;
case FmulScale.Divide2: srcA = context.FPDivide (srcA, ConstF(2)); break; case FPMultiplyScale.Divide2: srcA = context.FPDivide (srcA, ConstF(2)); break;
case FmulScale.Divide4: srcA = context.FPDivide (srcA, ConstF(4)); break; case FPMultiplyScale.Divide4: srcA = context.FPDivide (srcA, ConstF(4)); break;
case FmulScale.Divide8: srcA = context.FPDivide (srcA, ConstF(8)); break; case FPMultiplyScale.Divide8: srcA = context.FPDivide (srcA, ConstF(8)); break;
case FmulScale.Multiply2: srcA = context.FPMultiply(srcA, ConstF(2)); break; case FPMultiplyScale.Multiply2: srcA = context.FPMultiply(srcA, ConstF(2)); break;
case FmulScale.Multiply4: srcA = context.FPMultiply(srcA, ConstF(4)); break; case FPMultiplyScale.Multiply4: srcA = context.FPMultiply(srcA, ConstF(4)); break;
case FmulScale.Multiply8: srcA = context.FPMultiply(srcA, ConstF(8)); break; case FPMultiplyScale.Multiply8: srcA = context.FPMultiply(srcA, ConstF(8)); break;
default: break; //TODO: Warning. default: break; //TODO: Warning.
} }

60
Ryujinx.Graphics.Shader/Instructions/InstEmitFlow.cs
View file

@ -20,6 +20,36 @@ namespace Ryujinx.Graphics.Shader.Instructions
EmitBrkOrSync(context); EmitBrkOrSync(context);
} }
public static void Brx(EmitterContext context)
{
OpCodeBranchIndir op = (OpCodeBranchIndir)context.CurrOp;
int offset = (int)op.Address + 8 + op.Offset;
Operand address = context.IAdd(Register(op.Ra), Const(offset));
// Sorting the target addresses in descending order improves the code,
// since it will always check the most distant targets first, then the
// near ones. This can be easily transformed into if/else statements.
IOrderedEnumerable<Block> sortedTargets = op.PossibleTargets.OrderByDescending(x => x.Address);
Block lastTarget = sortedTargets.LastOrDefault();
foreach (Block possibleTarget in sortedTargets)
{
Operand label = context.GetLabel(possibleTarget.Address);
if (possibleTarget != lastTarget)
{
context.BranchIfTrue(label, context.ICompareEqual(address, Const((int)possibleTarget.Address)));
}
else
{
context.Branch(label);
}
}
}
public static void Exit(EmitterContext context) public static void Exit(EmitterContext context)
{ {
OpCodeExit op = (OpCodeExit)context.CurrOp; OpCodeExit op = (OpCodeExit)context.CurrOp;
@ -54,45 +84,45 @@ namespace Ryujinx.Graphics.Shader.Instructions
private static void EmitPbkOrSsy(EmitterContext context) private static void EmitPbkOrSsy(EmitterContext context)
{ {
OpCodeSsy op = (OpCodeSsy)context.CurrOp; OpCodePush op = (OpCodePush)context.CurrOp;
foreach (KeyValuePair<OpCodeSync, Operand> kv in op.Syncs) foreach (KeyValuePair<OpCodeBranchPop, Operand> kv in op.PopOps)
{ {
OpCodeSync opSync = kv.Key; OpCodeBranchPop opSync = kv.Key;
Operand local = kv.Value; Operand local = kv.Value;
int ssyIndex = opSync.Targets[op]; int pushOpIndex = opSync.Targets[op];
context.Copy(local, Const(ssyIndex)); context.Copy(local, Const(pushOpIndex));
} }
} }
private static void EmitBrkOrSync(EmitterContext context) private static void EmitBrkOrSync(EmitterContext context)
{ {
OpCodeSync op = (OpCodeSync)context.CurrOp; OpCodeBranchPop op = (OpCodeBranchPop)context.CurrOp;
if (op.Targets.Count == 1) if (op.Targets.Count == 1)
{ {
// If we have only one target, then the SSY is basically // If we have only one target, then the SSY/PBK is basically
// a branch, we can produce better codegen for this case. // a branch, we can produce better codegen for this case.
OpCodeSsy opSsy = op.Targets.Keys.First(); OpCodePush pushOp = op.Targets.Keys.First();
EmitBranch(context, opSsy.GetAbsoluteAddress()); EmitBranch(context, pushOp.GetAbsoluteAddress());
} }
else else
{ {
foreach (KeyValuePair<OpCodeSsy, int> kv in op.Targets) foreach (KeyValuePair<OpCodePush, int> kv in op.Targets)
{ {
OpCodeSsy opSsy = kv.Key; OpCodePush pushOp = kv.Key;
Operand label = context.GetLabel(opSsy.GetAbsoluteAddress()); Operand label = context.GetLabel(pushOp.GetAbsoluteAddress());
Operand local = opSsy.Syncs[op]; Operand local = pushOp.PopOps[op];
int ssyIndex = kv.Value; int pushOpIndex = kv.Value;
context.BranchIfTrue(label, context.ICompareEqual(local, Const(ssyIndex))); context.BranchIfTrue(label, context.ICompareEqual(local, Const(pushOpIndex)));
} }
} }
} }

5
Ryujinx.Graphics.Shader/ShaderProgram.cs
View file

@ -10,11 +10,14 @@ namespace Ryujinx.Graphics.Shader
public string Code { get; private set; } public string Code { get; private set; }
internal ShaderProgram(ShaderProgramInfo info, ShaderStage stage, string code) public int Size { get; }
internal ShaderProgram(ShaderProgramInfo info, ShaderStage stage, string code, int size)
{ {
Info = info; Info = info;
Stage = stage; Stage = stage;
Code = code; Code = code;
Size = size;
} }
public void Prepend(string line) public void Prepend(string line)

47
Ryujinx.Graphics.Shader/Translation/Translator.cs
View file

@ -46,7 +46,12 @@ namespace Ryujinx.Graphics.Shader.Translation
bool compute = (translationConfig.Flags & TranslationFlags.Compute) != 0; bool compute = (translationConfig.Flags & TranslationFlags.Compute) != 0;
bool debugMode = (translationConfig.Flags & TranslationFlags.DebugMode) != 0; bool debugMode = (translationConfig.Flags & TranslationFlags.DebugMode) != 0;
Operation[] ops = DecodeShader(code, compute, debugMode, out ShaderHeader header); Operation[] ops = DecodeShader(
code,
compute,
debugMode,
out ShaderHeader header,
out int size);
ShaderStage stage; ShaderStage stage;
@ -76,15 +81,15 @@ namespace Ryujinx.Graphics.Shader.Translation
maxOutputVertexCount, maxOutputVertexCount,
outputTopology); outputTopology);
return Translate(ops, config); return Translate(ops, config, size);
} }
public static ShaderProgram Translate(Span<byte> vpACode, Span<byte> vpBCode, TranslationConfig translationConfig) public static ShaderProgram Translate(Span<byte> vpACode, Span<byte> vpBCode, TranslationConfig translationConfig)
{ {
bool debugMode = (translationConfig.Flags & TranslationFlags.DebugMode) != 0; bool debugMode = (translationConfig.Flags & TranslationFlags.DebugMode) != 0;
Operation[] vpAOps = DecodeShader(vpACode, compute: false, debugMode, out _); Operation[] vpAOps = DecodeShader(vpACode, compute: false, debugMode, out _, out _);
Operation[] vpBOps = DecodeShader(vpBCode, compute: false, debugMode, out ShaderHeader header); Operation[] vpBOps = DecodeShader(vpBCode, compute: false, debugMode, out ShaderHeader header, out int sizeB);
ShaderConfig config = new ShaderConfig( ShaderConfig config = new ShaderConfig(
header.Stage, header.Stage,
@ -93,10 +98,10 @@ namespace Ryujinx.Graphics.Shader.Translation
header.MaxOutputVertexCount, header.MaxOutputVertexCount,
header.OutputTopology); header.OutputTopology);
return Translate(Combine(vpAOps, vpBOps), config); return Translate(Combine(vpAOps, vpBOps), config, sizeB);
} }
private static ShaderProgram Translate(Operation[] ops, ShaderConfig config) private static ShaderProgram Translate(Operation[] ops, ShaderConfig config, int size)
{ {
BasicBlock[] irBlocks = ControlFlowGraph.MakeCfg(ops); BasicBlock[] irBlocks = ControlFlowGraph.MakeCfg(ops);
@ -122,17 +127,20 @@ namespace Ryujinx.Graphics.Shader.Translation
string glslCode = program.Code; string glslCode = program.Code;
return new ShaderProgram(spInfo, config.Stage, glslCode); return new ShaderProgram(spInfo, config.Stage, glslCode, size);
} }
private static Operation[] DecodeShader(Span<byte> code, bool compute, bool debugMode, out ShaderHeader header) private static Operation[] DecodeShader(
Span<byte> code,
bool compute,
bool debugMode,
out ShaderHeader header,
out int size)
{ {
Block[] cfg; Block[] cfg;
EmitterContext context; EmitterContext context;
ulong headerSize;
if (compute) if (compute)
{ {
header = null; header = null;
@ -140,8 +148,6 @@ namespace Ryujinx.Graphics.Shader.Translation
cfg = Decoder.Decode(code, 0); cfg = Decoder.Decode(code, 0);
context = new EmitterContext(ShaderStage.Compute, header); context = new EmitterContext(ShaderStage.Compute, header);
headerSize = 0;
} }
else else
{ {
@ -150,14 +156,19 @@ namespace Ryujinx.Graphics.Shader.Translation
cfg = Decoder.Decode(code, HeaderSize); cfg = Decoder.Decode(code, HeaderSize);
context = new EmitterContext(header.Stage, header); context = new EmitterContext(header.Stage, header);
headerSize = HeaderSize;
} }
ulong maxEndAddress = 0;
for (int blkIndex = 0; blkIndex < cfg.Length; blkIndex++) for (int blkIndex = 0; blkIndex < cfg.Length; blkIndex++)
{ {
Block block = cfg[blkIndex]; Block block = cfg[blkIndex];
if (maxEndAddress < block.EndAddress)
{
maxEndAddress = block.EndAddress;
}
context.CurrBlock = block; context.CurrBlock = block;
context.MarkLabel(context.GetLabel(block.Address)); context.MarkLabel(context.GetLabel(block.Address));
@ -179,7 +190,7 @@ namespace Ryujinx.Graphics.Shader.Translation
instName = "???"; instName = "???";
} }
string dbgComment = $"0x{(op.Address - headerSize):X6}: 0x{op.RawOpCode:X16} {instName}"; string dbgComment = $"0x{op.Address:X6}: 0x{op.RawOpCode:X16} {instName}";
context.Add(new CommentNode(dbgComment)); context.Add(new CommentNode(dbgComment));
} }
@ -193,13 +204,13 @@ namespace Ryujinx.Graphics.Shader.Translation
bool skipPredicateCheck = op.Emitter == InstEmit.Bra; bool skipPredicateCheck = op.Emitter == InstEmit.Bra;
if (op is OpCodeSync opSync) if (op is OpCodeBranchPop opBranchPop)
{ {
// If the instruction is a SYNC instruction with only one // If the instruction is a SYNC instruction with only one
// possible target address, then the instruction is basically // possible target address, then the instruction is basically
// just a simple branch, we can generate code similar to branch // just a simple branch, we can generate code similar to branch
// instructions, with the condition check on the branch itself. // instructions, with the condition check on the branch itself.
skipPredicateCheck |= opSync.Targets.Count < 2; skipPredicateCheck |= opBranchPop.Targets.Count < 2;
} }
if (!(op.Predicate.IsPT || skipPredicateCheck)) if (!(op.Predicate.IsPT || skipPredicateCheck))
@ -243,6 +254,8 @@ namespace Ryujinx.Graphics.Shader.Translation
} }
} }
size = (int)maxEndAddress + (compute ? 0 : HeaderSize);
return context.GetOperations(); return context.GetOperations();
} }