1
0
Fork 0
mirror of https://github.com/Ryujinx/Ryujinx.git synced 2024-11-14 12:26:40 +00:00
Ryujinx/Ryujinx.Graphics.Shader/Instructions/InstEmitTexture.cs
gdkchan 119a3a1887
Fix SUATOM and other texture shader instructions with RZ dest (#2885)
* Fix SUATOM and other texture shader instructions with RZ dest

* Shader cache version bump
2021-12-08 18:36:09 -03:00

1325 lines
No EOL
41 KiB
C#

using Ryujinx.Graphics.Shader.Decoders;
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
using Ryujinx.Graphics.Shader.Translation;
using System;
using System.Collections.Generic;
using static Ryujinx.Graphics.Shader.IntermediateRepresentation.OperandHelper;
namespace Ryujinx.Graphics.Shader.Instructions
{
static partial class InstEmit
{
private static readonly int[,] _maskLut = new int[,]
{
{ 0b0001, 0b0010, 0b0100, 0b1000, 0b0011, 0b1001, 0b1010, 0b1100 },
{ 0b0111, 0b1011, 0b1101, 0b1110, 0b1111, 0b0000, 0b0000, 0b0000 }
};
private const bool Sample1DAs2D = true;
private enum TexsType
{
Texs,
Tlds,
Tld4s
}
public static void Tex(EmitterContext context)
{
InstTex op = context.GetOp<InstTex>();
EmitTex(context, TextureFlags.None, op.Dim, op.Lod, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, false, op.Dc, op.Aoffi);
}
public static void TexB(EmitterContext context)
{
InstTexB op = context.GetOp<InstTexB>();
EmitTex(context, TextureFlags.Bindless, op.Dim, op.Lodb, 0, op.WMask, op.SrcA, op.SrcB, op.Dest, false, op.Dc, op.Aoffib);
}
public static void Texs(EmitterContext context)
{
InstTexs op = context.GetOp<InstTexs>();
EmitTexs(context, TexsType.Texs, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Dest2, isF16: false);
}
public static void TexsF16(EmitterContext context)
{
InstTexs op = context.GetOp<InstTexs>();
EmitTexs(context, TexsType.Texs, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Dest2, isF16: true);
}
public static void Tld(EmitterContext context)
{
InstTld op = context.GetOp<InstTld>();
context.Config.SetUsedFeature(FeatureFlags.IntegerSampling);
var lod = op.Lod ? Lod.Ll : Lod.Lz;
EmitTex(context, TextureFlags.IntCoords, op.Dim, lod, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Ms, false, op.Toff);
}
public static void TldB(EmitterContext context)
{
InstTldB op = context.GetOp<InstTldB>();
context.Config.SetUsedFeature(FeatureFlags.IntegerSampling);
var flags = TextureFlags.IntCoords | TextureFlags.Bindless;
var lod = op.Lod ? Lod.Ll : Lod.Lz;
EmitTex(context, flags, op.Dim, lod, 0, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Ms, false, op.Toff);
}
public static void Tlds(EmitterContext context)
{
InstTlds op = context.GetOp<InstTlds>();
EmitTexs(context, TexsType.Tlds, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Dest2, isF16: false);
}
public static void TldsF16(EmitterContext context)
{
InstTlds op = context.GetOp<InstTlds>();
EmitTexs(context, TexsType.Tlds, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Dest2, isF16: true);
}
public static void Tld4(EmitterContext context)
{
InstTld4 op = context.GetOp<InstTld4>();
EmitTld4(context, op.Dim, op.TexComp, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Toff, op.Dc, isBindless: false);
}
public static void Tld4B(EmitterContext context)
{
InstTld4B op = context.GetOp<InstTld4B>();
EmitTld4(context, op.Dim, op.TexComp, 0, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Toff, op.Dc, isBindless: true);
}
public static void Tld4s(EmitterContext context)
{
InstTld4s op = context.GetOp<InstTld4s>();
EmitTexs(context, TexsType.Tld4s, op.TidB, 4, op.SrcA, op.SrcB, op.Dest, op.Dest2, isF16: false);
}
public static void Tld4sF16(EmitterContext context)
{
InstTld4s op = context.GetOp<InstTld4s>();
EmitTexs(context, TexsType.Tld4s, op.TidB, 4, op.SrcA, op.SrcB, op.Dest, op.Dest2, isF16: true);
}
public static void Tmml(EmitterContext context)
{
InstTmml op = context.GetOp<InstTmml>();
EmitTmml(context, op.Dim, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, isBindless: false);
}
public static void TmmlB(EmitterContext context)
{
InstTmmlB op = context.GetOp<InstTmmlB>();
EmitTmml(context, op.Dim, 0, op.WMask, op.SrcA, op.SrcB, op.Dest, isBindless: true);
}
public static void Txd(EmitterContext context)
{
InstTxd op = context.GetOp<InstTxd>();
EmitTxd(context, op.Dim, op.TidB, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Toff, isBindless: false);
}
public static void TxdB(EmitterContext context)
{
InstTxdB op = context.GetOp<InstTxdB>();
EmitTxd(context, op.Dim, 0, op.WMask, op.SrcA, op.SrcB, op.Dest, op.Toff, isBindless: true);
}
public static void Txq(EmitterContext context)
{
InstTxq op = context.GetOp<InstTxq>();
EmitTxq(context, op.TexQuery, op.TidB, op.WMask, op.SrcA, op.Dest, isBindless: false);
}
public static void TxqB(EmitterContext context)
{
InstTxqB op = context.GetOp<InstTxqB>();
EmitTxq(context, op.TexQuery, 0, op.WMask, op.SrcA, op.Dest, isBindless: true);
}
private static void EmitTex(
EmitterContext context,
TextureFlags flags,
TexDim dimensions,
Lod lodMode,
int imm,
int componentMask,
int raIndex,
int rbIndex,
int rdIndex,
bool isMultisample,
bool hasDepthCompare,
bool hasOffset)
{
if (rdIndex == RegisterConsts.RegisterZeroIndex)
{
return;
}
Operand Ra()
{
if (raIndex > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(raIndex++, RegisterType.Gpr));
}
Operand Rb()
{
if (rbIndex > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(rbIndex++, RegisterType.Gpr));
}
SamplerType type = ConvertSamplerType(dimensions);
bool isArray = type.HasFlag(SamplerType.Array);
bool isBindless = flags.HasFlag(TextureFlags.Bindless);
Operand arrayIndex = isArray ? Ra() : null;
List<Operand> sourcesList = new List<Operand>();
if (isBindless)
{
sourcesList.Add(Rb());
}
bool hasLod = lodMode > Lod.Lz;
if (type == SamplerType.Texture1D && (flags & ~TextureFlags.Bindless) == TextureFlags.IntCoords && !(
hasLod ||
hasDepthCompare ||
hasOffset ||
isArray ||
isMultisample))
{
// For bindless, we don't have any way to know the texture type,
// so we assume it's texture buffer when the sampler type is 1D, since that's more common.
bool isTypeBuffer = isBindless || context.Config.GpuAccessor.QuerySamplerType(imm) == SamplerType.TextureBuffer;
if (isTypeBuffer)
{
type = SamplerType.TextureBuffer;
}
}
int coordsCount = type.GetDimensions();
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(Ra());
}
bool is1DTo2D = false;
if (Sample1DAs2D && (type & SamplerType.Mask) == SamplerType.Texture1D)
{
sourcesList.Add(ConstF(0));
type = SamplerType.Texture2D | (type & SamplerType.Array);
is1DTo2D = true;
}
if (isArray)
{
sourcesList.Add(arrayIndex);
}
Operand lodValue = hasLod ? Rb() : ConstF(0);
Operand packedOffs = hasOffset ? Rb() : null;
if (hasDepthCompare)
{
sourcesList.Add(Rb());
type |= SamplerType.Shadow;
}
if ((lodMode == Lod.Lz ||
lodMode == Lod.Ll ||
lodMode == Lod.Lla) && !isMultisample && type != SamplerType.TextureBuffer)
{
sourcesList.Add(lodValue);
flags |= TextureFlags.LodLevel;
}
if (hasOffset)
{
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(context.BitfieldExtractS32(packedOffs, Const(index * 4), Const(4)));
}
if (is1DTo2D)
{
sourcesList.Add(Const(0));
}
flags |= TextureFlags.Offset;
}
if (lodMode == Lod.Lb || lodMode == Lod.Lba)
{
sourcesList.Add(lodValue);
flags |= TextureFlags.LodBias;
}
if (isMultisample)
{
sourcesList.Add(Rb());
type |= SamplerType.Multisample;
}
Operand[] sources = sourcesList.ToArray();
Operand GetDest()
{
if (rdIndex >= RegisterConsts.RegisterZeroIndex)
{
return null;
}
return Register(rdIndex++, RegisterType.Gpr);
}
int handle = !isBindless ? imm : 0;
for (int compMask = componentMask, compIndex = 0; compMask != 0; compMask >>= 1, compIndex++)
{
if ((compMask & 1) != 0)
{
Operand dest = GetDest();
if (dest == null)
{
break;
}
TextureOperation operation = context.CreateTextureOperation(
Instruction.TextureSample,
type,
flags,
handle,
compIndex,
dest,
sources);
context.Add(operation);
}
}
}
private static void EmitTexs(
EmitterContext context,
TexsType texsType,
int imm,
int writeMask,
int srcA,
int srcB,
int dest,
int dest2,
bool isF16)
{
if (dest == RegisterConsts.RegisterZeroIndex && dest2 == RegisterConsts.RegisterZeroIndex)
{
return;
}
List<Operand> sourcesList = new List<Operand>();
Operand Ra()
{
if (srcA > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcA++, RegisterType.Gpr));
}
Operand Rb()
{
if (srcB > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcB++, RegisterType.Gpr));
}
void AddTextureOffset(int coordsCount, int stride, int size)
{
Operand packedOffs = Rb();
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(context.BitfieldExtractS32(packedOffs, Const(index * stride), Const(size)));
}
}
SamplerType type;
TextureFlags flags;
if (texsType == TexsType.Texs)
{
var texsOp = context.GetOp<InstTexs>();
type = ConvertSamplerType(texsOp.Target);
if (type == SamplerType.None)
{
context.Config.GpuAccessor.Log("Invalid texture sampler type.");
return;
}
flags = ConvertTextureFlags(texsOp.Target);
// We don't need to handle 1D -> Buffer conversions here as
// only texture sample with integer coordinates can ever use buffer targets.
if ((type & SamplerType.Array) != 0)
{
Operand arrayIndex = Ra();
sourcesList.Add(Ra());
sourcesList.Add(Rb());
sourcesList.Add(arrayIndex);
if ((type & SamplerType.Shadow) != 0)
{
sourcesList.Add(Rb());
}
if ((flags & TextureFlags.LodLevel) != 0)
{
sourcesList.Add(ConstF(0));
}
}
else
{
switch (texsOp.Target)
{
case TexsTarget.Texture1DLodZero:
sourcesList.Add(Ra());
if (Sample1DAs2D)
{
sourcesList.Add(ConstF(0));
type &= ~SamplerType.Mask;
type |= SamplerType.Texture2D;
}
sourcesList.Add(ConstF(0));
break;
case TexsTarget.Texture2D:
sourcesList.Add(Ra());
sourcesList.Add(Rb());
break;
case TexsTarget.Texture2DLodZero:
sourcesList.Add(Ra());
sourcesList.Add(Rb());
sourcesList.Add(ConstF(0));
break;
case TexsTarget.Texture2DLodLevel:
case TexsTarget.Texture2DDepthCompare:
case TexsTarget.Texture3D:
case TexsTarget.TextureCube:
sourcesList.Add(Ra());
sourcesList.Add(Ra());
sourcesList.Add(Rb());
break;
case TexsTarget.Texture2DLodZeroDepthCompare:
case TexsTarget.Texture3DLodZero:
sourcesList.Add(Ra());
sourcesList.Add(Ra());
sourcesList.Add(Rb());
sourcesList.Add(ConstF(0));
break;
case TexsTarget.Texture2DLodLevelDepthCompare:
case TexsTarget.TextureCubeLodLevel:
sourcesList.Add(Ra());
sourcesList.Add(Ra());
sourcesList.Add(Rb());
sourcesList.Add(Rb());
break;
}
}
}
else if (texsType == TexsType.Tlds)
{
var tldsOp = context.GetOp<InstTlds>();
type = ConvertSamplerType(tldsOp.Target);
if (type == SamplerType.None)
{
context.Config.GpuAccessor.Log("Invalid texel fetch sampler type.");
return;
}
context.Config.SetUsedFeature(FeatureFlags.IntegerSampling);
flags = ConvertTextureFlags(tldsOp.Target) | TextureFlags.IntCoords;
if (tldsOp.Target == TldsTarget.Texture1DLodZero &&
context.Config.GpuAccessor.QuerySamplerType(tldsOp.TidB) == SamplerType.TextureBuffer)
{
type = SamplerType.TextureBuffer;
flags &= ~TextureFlags.LodLevel;
}
switch (tldsOp.Target)
{
case TldsTarget.Texture1DLodZero:
sourcesList.Add(Ra());
if (type != SamplerType.TextureBuffer)
{
if (Sample1DAs2D)
{
sourcesList.Add(ConstF(0));
type &= ~SamplerType.Mask;
type |= SamplerType.Texture2D;
}
sourcesList.Add(ConstF(0));
}
break;
case TldsTarget.Texture1DLodLevel:
sourcesList.Add(Ra());
if (Sample1DAs2D)
{
sourcesList.Add(ConstF(0));
type &= ~SamplerType.Mask;
type |= SamplerType.Texture2D;
}
sourcesList.Add(Rb());
break;
case TldsTarget.Texture2DLodZero:
sourcesList.Add(Ra());
sourcesList.Add(Rb());
sourcesList.Add(Const(0));
break;
case TldsTarget.Texture2DLodZeroOffset:
sourcesList.Add(Ra());
sourcesList.Add(Ra());
sourcesList.Add(Const(0));
break;
case TldsTarget.Texture2DLodZeroMultisample:
case TldsTarget.Texture2DLodLevel:
case TldsTarget.Texture2DLodLevelOffset:
sourcesList.Add(Ra());
sourcesList.Add(Ra());
sourcesList.Add(Rb());
break;
case TldsTarget.Texture3DLodZero:
sourcesList.Add(Ra());
sourcesList.Add(Ra());
sourcesList.Add(Rb());
sourcesList.Add(Const(0));
break;
case TldsTarget.Texture2DArrayLodZero:
sourcesList.Add(Rb());
sourcesList.Add(Rb());
sourcesList.Add(Ra());
sourcesList.Add(Const(0));
break;
}
if ((flags & TextureFlags.Offset) != 0)
{
AddTextureOffset(type.GetDimensions(), 4, 4);
}
}
else if (texsType == TexsType.Tld4s)
{
var tld4sOp = context.GetOp<InstTld4s>();
if (!(tld4sOp.Dc || tld4sOp.Aoffi))
{
sourcesList.Add(Ra());
sourcesList.Add(Rb());
}
else
{
sourcesList.Add(Ra());
sourcesList.Add(Ra());
}
type = SamplerType.Texture2D;
flags = TextureFlags.Gather;
if (tld4sOp.Dc)
{
sourcesList.Add(Rb());
type |= SamplerType.Shadow;
}
if (tld4sOp.Aoffi)
{
AddTextureOffset(type.GetDimensions(), 8, 6);
flags |= TextureFlags.Offset;
}
sourcesList.Add(Const((int)tld4sOp.TexComp));
}
else
{
throw new ArgumentException($"Invalid TEXS type \"{texsType}\".");
}
Operand[] sources = sourcesList.ToArray();
Operand[] rd0 = new Operand[2] { ConstF(0), ConstF(0) };
Operand[] rd1 = new Operand[2] { ConstF(0), ConstF(0) };
int destIncrement = 0;
Operand GetDest()
{
int high = destIncrement >> 1;
int low = destIncrement & 1;
destIncrement++;
if (isF16)
{
return high != 0
? (rd1[low] = Local())
: (rd0[low] = Local());
}
else
{
int rdIndex = high != 0 ? dest2 : dest;
if (rdIndex < RegisterConsts.RegisterZeroIndex)
{
rdIndex += low;
}
return Register(rdIndex, RegisterType.Gpr);
}
}
int handle = imm;
int componentMask = _maskLut[dest2 == RegisterConsts.RegisterZeroIndex ? 0 : 1, writeMask];
for (int compMask = componentMask, compIndex = 0; compMask != 0; compMask >>= 1, compIndex++)
{
if ((compMask & 1) != 0)
{
TextureOperation operation = context.CreateTextureOperation(
Instruction.TextureSample,
type,
flags,
handle,
compIndex,
GetDest(),
sources);
context.Add(operation);
}
}
if (isF16)
{
context.Copy(Register(dest, RegisterType.Gpr), context.PackHalf2x16(rd0[0], rd0[1]));
context.Copy(Register(dest2, RegisterType.Gpr), context.PackHalf2x16(rd1[0], rd1[1]));
}
}
private static void EmitTld4(
EmitterContext context,
TexDim dimensions,
TexComp component,
int imm,
int componentMask,
int srcA,
int srcB,
int dest,
TexOffset offset,
bool hasDepthCompare,
bool isBindless)
{
if (dest == RegisterConsts.RegisterZeroIndex)
{
return;
}
Operand Ra()
{
if (srcA > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcA++, RegisterType.Gpr));
}
Operand Rb()
{
if (srcB > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcB++, RegisterType.Gpr));
}
bool isArray =
dimensions == TexDim.Array1d ||
dimensions == TexDim.Array2d ||
dimensions == TexDim.Array3d ||
dimensions == TexDim.ArrayCube;
Operand arrayIndex = isArray ? Ra() : null;
List<Operand> sourcesList = new List<Operand>();
SamplerType type = ConvertSamplerType(dimensions);
TextureFlags flags = TextureFlags.Gather;
if (isBindless)
{
sourcesList.Add(Rb());
flags |= TextureFlags.Bindless;
}
int coordsCount = type.GetDimensions();
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(Ra());
}
bool is1DTo2D = Sample1DAs2D && (type & SamplerType.Mask) == SamplerType.Texture1D;
if (is1DTo2D)
{
sourcesList.Add(ConstF(0));
type = SamplerType.Texture2D | (type & SamplerType.Array);
}
if (isArray)
{
sourcesList.Add(arrayIndex);
}
Operand[] packedOffs = new Operand[2];
bool hasAnyOffset = offset == TexOffset.Aoffi || offset == TexOffset.Ptp;
packedOffs[0] = hasAnyOffset ? Rb() : null;
packedOffs[1] = offset == TexOffset.Ptp ? Rb() : null;
if (hasDepthCompare)
{
sourcesList.Add(Rb());
type |= SamplerType.Shadow;
}
if (hasAnyOffset)
{
int offsetTexelsCount = offset == TexOffset.Ptp ? 4 : 1;
for (int index = 0; index < coordsCount * offsetTexelsCount; index++)
{
Operand packed = packedOffs[(index >> 2) & 1];
sourcesList.Add(context.BitfieldExtractS32(packed, Const((index & 3) * 8), Const(6)));
}
if (is1DTo2D)
{
for (int index = 0; index < offsetTexelsCount; index++)
{
sourcesList.Add(Const(0));
}
}
flags |= offset == TexOffset.Ptp ? TextureFlags.Offsets : TextureFlags.Offset;
}
sourcesList.Add(Const((int)component));
Operand[] sources = sourcesList.ToArray();
Operand GetDest()
{
if (dest >= RegisterConsts.RegisterZeroIndex)
{
return null;
}
return Register(dest++, RegisterType.Gpr);
}
int handle = imm;
for (int compMask = componentMask, compIndex = 0; compMask != 0; compMask >>= 1, compIndex++)
{
if ((compMask & 1) != 0)
{
Operand destOperand = GetDest();
if (destOperand == null)
{
break;
}
TextureOperation operation = context.CreateTextureOperation(
Instruction.TextureSample,
type,
flags,
handle,
compIndex,
destOperand,
sources);
context.Add(operation);
}
}
}
private static void EmitTmml(
EmitterContext context,
TexDim dimensions,
int imm,
int componentMask,
int srcA,
int srcB,
int dest,
bool isBindless)
{
if (dest == RegisterConsts.RegisterZeroIndex)
{
return;
}
Operand Ra()
{
if (srcA > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcA++, RegisterType.Gpr));
}
Operand Rb()
{
if (srcB > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcB++, RegisterType.Gpr));
}
TextureFlags flags = TextureFlags.None;
List<Operand> sourcesList = new List<Operand>();
if (isBindless)
{
sourcesList.Add(Rb());
flags |= TextureFlags.Bindless;
}
SamplerType type = ConvertSamplerType(dimensions);
int coordsCount = type.GetDimensions();
bool isArray =
dimensions == TexDim.Array1d ||
dimensions == TexDim.Array2d ||
dimensions == TexDim.Array3d ||
dimensions == TexDim.ArrayCube;
Operand arrayIndex = isArray ? Ra() : null;
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(Ra());
}
if (Sample1DAs2D && (type & SamplerType.Mask) == SamplerType.Texture1D)
{
sourcesList.Add(ConstF(0));
type = SamplerType.Texture2D | (type & SamplerType.Array);
}
if (isArray)
{
sourcesList.Add(arrayIndex);
}
Operand[] sources = sourcesList.ToArray();
Operand GetDest()
{
if (dest >= RegisterConsts.RegisterZeroIndex)
{
return null;
}
return Register(dest++, RegisterType.Gpr);
}
int handle = imm;
for (int compMask = componentMask, compIndex = 0; compMask != 0; compMask >>= 1, compIndex++)
{
if ((compMask & 1) != 0)
{
Operand destOperand = GetDest();
if (destOperand == null)
{
break;
}
// Components z and w aren't standard, we return 0 in this case and add a comment.
if (compIndex >= 2)
{
context.Add(new CommentNode("Unsupported component z or w found"));
context.Copy(destOperand, Const(0));
}
else
{
Operand tempDest = Local();
TextureOperation operation = context.CreateTextureOperation(
Instruction.Lod,
type,
flags,
handle,
compIndex ^ 1, // The instruction component order is the inverse of GLSL's.
tempDest,
sources);
context.Add(operation);
tempDest = context.FPMultiply(tempDest, ConstF(256.0f));
Operand fixedPointValue = context.FP32ConvertToS32(tempDest);
context.Copy(destOperand, fixedPointValue);
}
}
}
}
private static void EmitTxd(
EmitterContext context,
TexDim dimensions,
int imm,
int componentMask,
int srcA,
int srcB,
int dest,
bool hasOffset,
bool isBindless)
{
if (dest == RegisterConsts.RegisterZeroIndex)
{
return;
}
Operand Ra()
{
if (srcA > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcA++, RegisterType.Gpr));
}
Operand Rb()
{
if (srcB > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcB++, RegisterType.Gpr));
}
TextureFlags flags = TextureFlags.Derivatives;
List<Operand> sourcesList = new List<Operand>();
if (isBindless)
{
sourcesList.Add(Ra());
flags |= TextureFlags.Bindless;
}
SamplerType type = ConvertSamplerType(dimensions);
int coordsCount = type.GetDimensions();
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(Ra());
}
bool is1DTo2D = Sample1DAs2D && (type & SamplerType.Mask) == SamplerType.Texture1D;
if (is1DTo2D)
{
sourcesList.Add(ConstF(0));
type = SamplerType.Texture2D | (type & SamplerType.Array);
}
Operand packedParams = Ra();
bool isArray =
dimensions == TexDim.Array1d ||
dimensions == TexDim.Array2d ||
dimensions == TexDim.Array3d ||
dimensions == TexDim.ArrayCube;
if (isArray)
{
sourcesList.Add(context.BitwiseAnd(packedParams, Const(0xffff)));
}
// Derivatives (X and Y).
for (int dIndex = 0; dIndex < 2 * coordsCount; dIndex++)
{
sourcesList.Add(Rb());
if (is1DTo2D)
{
sourcesList.Add(ConstF(0));
}
}
if (hasOffset)
{
for (int index = 0; index < coordsCount; index++)
{
sourcesList.Add(context.BitfieldExtractS32(packedParams, Const(16 + index * 4), Const(4)));
}
if (is1DTo2D)
{
sourcesList.Add(Const(0));
}
flags |= TextureFlags.Offset;
}
Operand[] sources = sourcesList.ToArray();
Operand GetDest()
{
if (dest >= RegisterConsts.RegisterZeroIndex)
{
return null;
}
return Register(dest++, RegisterType.Gpr);
}
int handle = imm;
for (int compMask = componentMask, compIndex = 0; compMask != 0; compMask >>= 1, compIndex++)
{
if ((compMask & 1) != 0)
{
Operand destOperand = GetDest();
if (destOperand == null)
{
break;
}
TextureOperation operation = context.CreateTextureOperation(
Instruction.TextureSample,
type,
flags,
handle,
compIndex,
destOperand,
sources);
context.Add(operation);
}
}
}
private static void EmitTxq(
EmitterContext context,
TexQuery query,
int imm,
int componentMask,
int srcA,
int dest,
bool isBindless)
{
if (dest == RegisterConsts.RegisterZeroIndex)
{
return;
}
context.Config.SetUsedFeature(FeatureFlags.IntegerSampling);
// TODO: Validate and use query.
Instruction inst = Instruction.TextureSize;
TextureFlags flags = isBindless ? TextureFlags.Bindless : TextureFlags.None;
Operand Ra()
{
if (srcA > RegisterConsts.RegisterZeroIndex)
{
return Const(0);
}
return context.Copy(Register(srcA++, RegisterType.Gpr));
}
List<Operand> sourcesList = new List<Operand>();
if (isBindless)
{
sourcesList.Add(Ra());
}
sourcesList.Add(Ra());
Operand[] sources = sourcesList.ToArray();
Operand GetDest()
{
if (dest >= RegisterConsts.RegisterZeroIndex)
{
return null;
}
return Register(dest++, RegisterType.Gpr);
}
SamplerType type;
if (isBindless)
{
type = (componentMask & 4) != 0 ? SamplerType.Texture3D : SamplerType.Texture2D;
}
else
{
type = context.Config.GpuAccessor.QuerySamplerType(imm);
}
for (int compMask = componentMask, compIndex = 0; compMask != 0; compMask >>= 1, compIndex++)
{
if ((compMask & 1) != 0)
{
Operand destOperand = GetDest();
if (destOperand == null)
{
break;
}
TextureOperation operation = context.CreateTextureOperation(
inst,
type,
flags,
imm,
compIndex,
destOperand,
sources);
context.Add(operation);
}
}
}
private static SamplerType ConvertSamplerType(TexDim dimensions)
{
return dimensions switch
{
TexDim._1d => SamplerType.Texture1D,
TexDim.Array1d => SamplerType.Texture1D | SamplerType.Array,
TexDim._2d => SamplerType.Texture2D,
TexDim.Array2d => SamplerType.Texture2D | SamplerType.Array,
TexDim._3d => SamplerType.Texture3D,
TexDim.Array3d => SamplerType.Texture3D | SamplerType.Array,
TexDim.Cube => SamplerType.TextureCube,
TexDim.ArrayCube => SamplerType.TextureCube | SamplerType.Array,
_ => throw new ArgumentException($"Invalid texture dimensions \"{dimensions}\".")
};
}
private static SamplerType ConvertSamplerType(TexsTarget type)
{
switch (type)
{
case TexsTarget.Texture1DLodZero:
return SamplerType.Texture1D;
case TexsTarget.Texture2D:
case TexsTarget.Texture2DLodZero:
case TexsTarget.Texture2DLodLevel:
return SamplerType.Texture2D;
case TexsTarget.Texture2DDepthCompare:
case TexsTarget.Texture2DLodLevelDepthCompare:
case TexsTarget.Texture2DLodZeroDepthCompare:
return SamplerType.Texture2D | SamplerType.Shadow;
case TexsTarget.Texture2DArray:
case TexsTarget.Texture2DArrayLodZero:
return SamplerType.Texture2D | SamplerType.Array;
case TexsTarget.Texture2DArrayLodZeroDepthCompare:
return SamplerType.Texture2D | SamplerType.Array | SamplerType.Shadow;
case TexsTarget.Texture3D:
case TexsTarget.Texture3DLodZero:
return SamplerType.Texture3D;
case TexsTarget.TextureCube:
case TexsTarget.TextureCubeLodLevel:
return SamplerType.TextureCube;
}
return SamplerType.None;
}
private static SamplerType ConvertSamplerType(TldsTarget type)
{
switch (type)
{
case TldsTarget.Texture1DLodZero:
case TldsTarget.Texture1DLodLevel:
return SamplerType.Texture1D;
case TldsTarget.Texture2DLodZero:
case TldsTarget.Texture2DLodZeroOffset:
case TldsTarget.Texture2DLodLevel:
case TldsTarget.Texture2DLodLevelOffset:
return SamplerType.Texture2D;
case TldsTarget.Texture2DLodZeroMultisample:
return SamplerType.Texture2D | SamplerType.Multisample;
case TldsTarget.Texture3DLodZero:
return SamplerType.Texture3D;
case TldsTarget.Texture2DArrayLodZero:
return SamplerType.Texture2D | SamplerType.Array;
}
return SamplerType.None;
}
private static TextureFlags ConvertTextureFlags(TexsTarget type)
{
switch (type)
{
case TexsTarget.Texture1DLodZero:
case TexsTarget.Texture2DLodZero:
case TexsTarget.Texture2DLodLevel:
case TexsTarget.Texture2DLodLevelDepthCompare:
case TexsTarget.Texture2DLodZeroDepthCompare:
case TexsTarget.Texture2DArrayLodZero:
case TexsTarget.Texture2DArrayLodZeroDepthCompare:
case TexsTarget.Texture3DLodZero:
case TexsTarget.TextureCubeLodLevel:
return TextureFlags.LodLevel;
case TexsTarget.Texture2D:
case TexsTarget.Texture2DDepthCompare:
case TexsTarget.Texture2DArray:
case TexsTarget.Texture3D:
case TexsTarget.TextureCube:
return TextureFlags.None;
}
return TextureFlags.None;
}
private static TextureFlags ConvertTextureFlags(TldsTarget type)
{
switch (type)
{
case TldsTarget.Texture1DLodZero:
case TldsTarget.Texture1DLodLevel:
case TldsTarget.Texture2DLodZero:
case TldsTarget.Texture2DLodLevel:
case TldsTarget.Texture2DLodZeroMultisample:
case TldsTarget.Texture3DLodZero:
case TldsTarget.Texture2DArrayLodZero:
return TextureFlags.LodLevel;
case TldsTarget.Texture2DLodZeroOffset:
case TldsTarget.Texture2DLodLevelOffset:
return TextureFlags.LodLevel | TextureFlags.Offset;
}
return TextureFlags.None;
}
}
}