public int Component; // for TLD4(S)
public ShaderIrMetaTex(int elem, GalTextureTarget textureTarget, TextureInstructionSuffix textureInstructionSuffix, params ShaderIrNode[] coordinates)
{
Elem = elem;
TextureTarget = textureTarget;
TextureInstructionSuffix = textureInstructionSuffix;
Coordinates = coordinates;
}
public ShaderDeclInfo(
string name,
int index,
bool isCb = false,
int cbuf = 0,
int size = 1,
GalTextureTarget textureTarget = GalTextureTarget.TwoD,
TextureInstructionSuffix textureSuffix = TextureInstructionSuffix.None)
{
Name = name;
Index = index;
IsCb = isCb;
Cbuf = cbuf;
Size = size;
TextureTarget = textureTarget;
TextureSuffix = textureSuffix;
}
public static void Tld4S(ShaderIrBlock block, long opCode, int position)
{
TextureInstructionSuffix suffix = TextureInstructionSuffix.None;
bool isOffset = opCode.Read(0x33);
bool isShadow = opCode.Read(0x32);
if (isOffset)
{
suffix |= TextureInstructionSuffix.AOffI;
}
if (isShadow)
{
suffix |= TextureInstructionSuffix.Dc;
}
// TLD4S seems to only support 2D textures with RGBA mask?
EmitTld4(block, opCode, GalTextureTarget.TwoD, suffix, RGBA, opCode.Read(0x34, 0x3), true);
}
private static void EmitTld4(ShaderIrBlock block, long opCode, GalTextureTarget textureType, TextureInstructionSuffix textureInstructionSuffix, int chMask, int component, bool scalar)
{
ShaderIrOperGpr operA = opCode.Gpr8();
ShaderIrOperGpr operB = opCode.Gpr20();
ShaderIrOperImm operC = opCode.Imm13_36();
ShaderIrOperGpr[] coords = new ShaderIrOperGpr[ImageUtils.GetCoordsCountTextureTarget(textureType)];
ShaderIrOperGpr offset = null;
ShaderIrOperGpr depthCompare = null;
bool isArray = ImageUtils.IsArray(textureType);
int operBIndex = 0;
if (scalar)
{
int coordStartIndex = 0;
if (isArray)
{
coordStartIndex++;
coords[coords.Length - 1] = operB;
}
switch (coords.Length - coordStartIndex)
{
case 1:
coords[0] = opCode.Gpr8();
break;
case 2:
coords[0] = opCode.Gpr8();
coords[0].Index += coordStartIndex;
break;
case 3:
coords[0] = opCode.Gpr8();
coords[0].Index += coordStartIndex;
coords[1] = opCode.Gpr8();
coords[1].Index += 1 + coordStartIndex;
break;
default:
throw new NotSupportedException($"{coords.Length - coordStartIndex} coords textures aren't supported in TLD4S");
}
if (coords.Length - coordStartIndex != 1)
{
coords[coords.Length - coordStartIndex - 1] = operB;
operBIndex++;
}
if (textureInstructionSuffix != TextureInstructionSuffix.None && textureType == GalTextureTarget.TwoD)
{
coords[coords.Length - coordStartIndex - 1] = opCode.Gpr8();
coords[coords.Length - coordStartIndex - 1].Index += coords.Length - coordStartIndex - 1;
operBIndex--;
}
}
else
{
int indexExtraCoord = 0;
if (isArray)
{
indexExtraCoord++;
coords[coords.Length - 1] = opCode.Gpr8();
}
for (int index = 0; index < coords.Length - indexExtraCoord; index++)
{
coords[index] = opCode.Gpr8();
coords[index].Index += index;
coords[index].Index += indexExtraCoord;
if (coords[index].Index > ShaderIrOperGpr.ZrIndex)
{
coords[index].Index = ShaderIrOperGpr.ZrIndex;
}
}
}
if ((textureInstructionSuffix & TextureInstructionSuffix.AOffI) != 0)
{
offset = opCode.Gpr20();
offset.Index += operBIndex;
operBIndex++;
}
if ((textureInstructionSuffix & TextureInstructionSuffix.Dc) != 0)
{
depthCompare = opCode.Gpr20();
depthCompare.Index += operBIndex;
operBIndex++;
}
coords = CoordsRegistersToTempRegisters(block, coords);
int regInc = 0;
for (int ch = 0; ch < 4; ch++)
{
if (!IsChannelUsed(chMask, ch))
{
continue;
}
ShaderIrOperGpr dst = opCode.Gpr0();
dst.Index += regInc++;
if (!dst.IsValidRegister || dst.IsConst)
{
continue;
}
ShaderIrMetaTex meta = new ShaderIrMetaTex(ch, textureType, textureInstructionSuffix, coords)
{
Component = component,
Offset = offset,
DepthCompare = depthCompare
};
ShaderIrOp op = new ShaderIrOp(ShaderIrInst.Tld4, operA, operB, operC, meta);
block.AddNode(opCode.PredNode(new ShaderIrAsg(dst, op)));
}
}
private static void EmitTexs(ShaderIrBlock block,
long opCode,
ShaderIrInst inst,
GalTextureTarget textureTarget,
TextureInstructionSuffix textureInstructionSuffix)
{
if (inst == ShaderIrInst.Txlf && textureTarget == GalTextureTarget.CubeArray)
{
throw new InvalidOperationException("TLDS instructions cannot use CUBE modifier!");
}
bool isArray = ImageUtils.IsArray(textureTarget);
ShaderIrOperGpr[] coords = new ShaderIrOperGpr[ImageUtils.GetCoordsCountTextureTarget(textureTarget)];
ShaderIrOperGpr operA = opCode.Gpr8();
ShaderIrOperGpr operB = opCode.Gpr20();
ShaderIrOperGpr suffixExtra = opCode.Gpr20();
suffixExtra.Index += 1;
int coordStartIndex = 0;
if (isArray)
{
coordStartIndex++;
coords[coords.Length - 1] = opCode.Gpr8();
}
switch (coords.Length - coordStartIndex)
{
case 1:
coords[0] = opCode.Gpr8();
break;
case 2:
coords[0] = opCode.Gpr8();
coords[0].Index += coordStartIndex;
break;
case 3:
coords[0] = opCode.Gpr8();
coords[0].Index += coordStartIndex;
coords[1] = opCode.Gpr8();
coords[1].Index += 1 + coordStartIndex;
break;
default:
throw new NotSupportedException($"{coords.Length - coordStartIndex} coords textures aren't supported in TEXS");
}
int operBIndex = 0;
ShaderIrOperGpr levelOfDetail = null;
ShaderIrOperGpr offset = null;
ShaderIrOperGpr depthCompare = null;
// OperB is always the last value
// Not applicable to 1d textures
if (coords.Length - coordStartIndex != 1)
{
coords[coords.Length - coordStartIndex - 1] = operB;
operBIndex++;
}
// Encoding of TEXS/TLDS is a bit special and change for 2d textures
// NOTE: OperA seems to hold at best two args.
// On 2D textures, if no suffix need an additional values, Y is stored in OperB, otherwise coords are in OperA and the additional values is in OperB.
if (textureInstructionSuffix != TextureInstructionSuffix.None && textureInstructionSuffix != TextureInstructionSuffix.Lz && textureTarget == GalTextureTarget.TwoD)
{
coords[coords.Length - coordStartIndex - 1] = opCode.Gpr8();
coords[coords.Length - coordStartIndex - 1].Index += coords.Length - coordStartIndex - 1;
operBIndex--;
}
// TODO: Find what MZ does and what changes about the encoding (Maybe Multisample?)
if ((textureInstructionSuffix & TextureInstructionSuffix.Ll) != 0)
{
levelOfDetail = opCode.Gpr20();
levelOfDetail.Index += operBIndex;
operBIndex++;
}
if ((textureInstructionSuffix & TextureInstructionSuffix.AOffI) != 0)
{
offset = opCode.Gpr20();
offset.Index += operBIndex;
operBIndex++;
}
if ((textureInstructionSuffix & TextureInstructionSuffix.Dc) != 0)
{
depthCompare = opCode.Gpr20();
depthCompare.Index += operBIndex;
operBIndex++;
}
int lutIndex;
lutIndex = !opCode.Gpr0().IsConst ? 1 : 0;
lutIndex |= !opCode.Gpr28().IsConst ? 2 : 0;
if (lutIndex == 0)
{
//Both destination registers are RZ, do nothing.
return;
}
bool fp16 = !opCode.Read(59);
int dstIncrement = 0;
ShaderIrOperGpr GetDst()
{
ShaderIrOperGpr dst;
if (fp16)
{
//FP16 mode, two components are packed on the two
//halfs of a 32-bits register, as two half-float values.
int halfPart = dstIncrement & 1;
switch (lutIndex)
{
case 1: dst = opCode.GprHalf0(halfPart); break;
case 2: dst = opCode.GprHalf28(halfPart); break;
case 3: dst = (dstIncrement >> 1) != 0
? opCode.GprHalf28(halfPart)
: opCode.GprHalf0(halfPart); break;
default: throw new InvalidOperationException();
}
}
else
{
//32-bits mode, each component uses one register.
//Two components uses two consecutive registers.
switch (lutIndex)
{
case 1: dst = opCode.Gpr0(); break;
case 2: dst = opCode.Gpr28(); break;
case 3: dst = (dstIncrement >> 1) != 0
? opCode.Gpr28()
: opCode.Gpr0(); break;
default: throw new InvalidOperationException();
}
dst.Index += dstIncrement & 1;
}
dstIncrement++;
return(dst);
}
int chMask = _maskLut[lutIndex, opCode.Read(50, 7)];
if (chMask == 0)
{
//All channels are disabled, do nothing.
return;
}
ShaderIrNode operC = opCode.Imm13_36();
coords = CoordsRegistersToTempRegisters(block, coords);
for (int ch = 0; ch < 4; ch++)
{
if (!IsChannelUsed(chMask, ch))
{
continue;
}
ShaderIrMetaTex meta = new ShaderIrMetaTex(ch, textureTarget, textureInstructionSuffix, coords)
{
LevelOfDetail = levelOfDetail,
Offset = offset,
DepthCompare = depthCompare
};
ShaderIrOp op = new ShaderIrOp(inst, operA, operB, operC, meta);
ShaderIrOperGpr dst = GetDst();
if (dst.IsValidRegister && !dst.IsConst)
{
block.AddNode(opCode.PredNode(new ShaderIrAsg(dst, op)));
}
}
}
private static void EmitTex(ShaderIrBlock block, long opCode, TextureInstructionSuffix textureInstructionSuffix, bool gprHandle)
{
bool isArray = opCode.HasArray();
GalTextureTarget textureTarget = TexToTextureTarget(opCode.Read(28, 6), isArray);
bool hasDepthCompare = opCode.Read(0x32);
if (hasDepthCompare)
{
textureInstructionSuffix |= TextureInstructionSuffix.Dc;
}
ShaderIrOperGpr[] coords = new ShaderIrOperGpr[ImageUtils.GetCoordsCountTextureTarget(textureTarget)];
int indexExtraCoord = 0;
if (isArray)
{
indexExtraCoord++;
coords[coords.Length - 1] = opCode.Gpr8();
}
for (int index = 0; index < coords.Length - indexExtraCoord; index++)
{
ShaderIrOperGpr coordReg = opCode.Gpr8();
coordReg.Index += index;
coordReg.Index += indexExtraCoord;
if (!coordReg.IsValidRegister)
{
coordReg.Index = ShaderIrOperGpr.ZrIndex;
}
coords[index] = coordReg;
}
int chMask = opCode.Read(31, 0xf);
ShaderIrOperGpr levelOfDetail = null;
ShaderIrOperGpr offset = null;
ShaderIrOperGpr depthCompare = null;
// TODO: determine first argument when TEX.B is used
int operBIndex = gprHandle ? 1 : 0;
if ((textureInstructionSuffix & TextureInstructionSuffix.Ll) != 0 ||
(textureInstructionSuffix & TextureInstructionSuffix.Lb) != 0 ||
(textureInstructionSuffix & TextureInstructionSuffix.Lba) != 0 ||
(textureInstructionSuffix & TextureInstructionSuffix.Lla) != 0)
{
levelOfDetail = opCode.Gpr20();
levelOfDetail.Index += operBIndex;
operBIndex++;
}
if ((textureInstructionSuffix & TextureInstructionSuffix.AOffI) != 0)
{
offset = opCode.Gpr20();
offset.Index += operBIndex;
operBIndex++;
}
if ((textureInstructionSuffix & TextureInstructionSuffix.Dc) != 0)
{
depthCompare = opCode.Gpr20();
depthCompare.Index += operBIndex;
operBIndex++;
}
// ???
ShaderIrNode operC = gprHandle
? (ShaderIrNode)opCode.Gpr20()
: (ShaderIrNode)opCode.Imm13_36();
ShaderIrInst inst = gprHandle ? ShaderIrInst.Texb : ShaderIrInst.Texs;
coords = CoordsRegistersToTempRegisters(block, coords);
int regInc = 0;
for (int ch = 0; ch < 4; ch++)
{
if (!IsChannelUsed(chMask, ch))
{
continue;
}
ShaderIrOperGpr dst = opCode.Gpr0();
dst.Index += regInc++;
if (!dst.IsValidRegister || dst.IsConst)
{
continue;
}
ShaderIrMetaTex meta = new ShaderIrMetaTex(ch, textureTarget, textureInstructionSuffix, coords)
{
LevelOfDetail = levelOfDetail,
Offset = offset,
DepthCompare = depthCompare
};
ShaderIrOp op = new ShaderIrOp(inst, coords[0], coords.Length > 1 ? coords[1] : null, operC, meta);
block.AddNode(opCode.PredNode(new ShaderIrAsg(dst, op)));
}
}
