mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2025-03-26 15:54:41 +01:00
3e6e0e4afa
* Add support for large sampler arrays on Vulkan * Shader cache version bump * Format whitespace * Move DescriptorSetManager to PipelineLayoutCacheEntry to allow different pool sizes per layout * Handle array textures with different types on the same buffer * Somewhat better caching system * Avoid useless buffer data modification checks * Move redundant bindings update checking to the backend * Fix an issue where texture arrays would get the same bindings across stages on Vulkan * Backport some fixes from part 2 * Fix typo * PR feedback * Format whitespace * Add some missing XML docs
687 lines
24 KiB
C#
687 lines
24 KiB
C#
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
|
|
using Ryujinx.Graphics.Shader.StructuredIr;
|
|
using Ryujinx.Graphics.Shader.Translation;
|
|
using System;
|
|
using System.Text;
|
|
using static Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions.InstGenHelper;
|
|
using static Ryujinx.Graphics.Shader.StructuredIr.InstructionInfo;
|
|
|
|
namespace Ryujinx.Graphics.Shader.CodeGen.Glsl.Instructions
|
|
{
|
|
static class InstGenMemory
|
|
{
|
|
public static string ImageLoadOrStore(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
bool isArray = (texOp.Type & SamplerType.Array) != 0;
|
|
|
|
var texCallBuilder = new StringBuilder();
|
|
|
|
if (texOp.Inst == Instruction.ImageAtomic)
|
|
{
|
|
texCallBuilder.Append((texOp.Flags & TextureFlags.AtomicMask) switch
|
|
{
|
|
#pragma warning disable IDE0055 // Disable formatting
|
|
TextureFlags.Add => "imageAtomicAdd",
|
|
TextureFlags.Minimum => "imageAtomicMin",
|
|
TextureFlags.Maximum => "imageAtomicMax",
|
|
TextureFlags.Increment => "imageAtomicAdd", // TODO: Clamp value.
|
|
TextureFlags.Decrement => "imageAtomicAdd", // TODO: Clamp value.
|
|
TextureFlags.BitwiseAnd => "imageAtomicAnd",
|
|
TextureFlags.BitwiseOr => "imageAtomicOr",
|
|
TextureFlags.BitwiseXor => "imageAtomicXor",
|
|
TextureFlags.Swap => "imageAtomicExchange",
|
|
TextureFlags.CAS => "imageAtomicCompSwap",
|
|
_ => "imageAtomicAdd",
|
|
#pragma warning restore IDE0055
|
|
});
|
|
}
|
|
else
|
|
{
|
|
texCallBuilder.Append(texOp.Inst == Instruction.ImageLoad ? "imageLoad" : "imageStore");
|
|
}
|
|
|
|
int srcIndex = 0;
|
|
|
|
string Src(AggregateType type)
|
|
{
|
|
return GetSourceExpr(context, texOp.GetSource(srcIndex++), type);
|
|
}
|
|
|
|
string imageName = GetImageName(context, texOp, ref srcIndex);
|
|
|
|
texCallBuilder.Append('(');
|
|
texCallBuilder.Append(imageName);
|
|
|
|
int coordsCount = texOp.Type.GetDimensions();
|
|
|
|
int pCount = coordsCount + (isArray ? 1 : 0);
|
|
|
|
void Append(string str)
|
|
{
|
|
texCallBuilder.Append(", ");
|
|
texCallBuilder.Append(str);
|
|
}
|
|
|
|
if (pCount > 1)
|
|
{
|
|
string[] elems = new string[pCount];
|
|
|
|
for (int index = 0; index < pCount; index++)
|
|
{
|
|
elems[index] = Src(AggregateType.S32);
|
|
}
|
|
|
|
Append($"ivec{pCount}({string.Join(", ", elems)})");
|
|
}
|
|
else
|
|
{
|
|
Append(Src(AggregateType.S32));
|
|
}
|
|
|
|
if (texOp.Inst == Instruction.ImageStore)
|
|
{
|
|
AggregateType type = texOp.Format.GetComponentType();
|
|
|
|
string[] cElems = new string[4];
|
|
|
|
for (int index = 0; index < 4; index++)
|
|
{
|
|
if (srcIndex < texOp.SourcesCount)
|
|
{
|
|
cElems[index] = Src(type);
|
|
}
|
|
else
|
|
{
|
|
cElems[index] = type switch
|
|
{
|
|
AggregateType.S32 => NumberFormatter.FormatInt(0),
|
|
AggregateType.U32 => NumberFormatter.FormatUint(0),
|
|
_ => NumberFormatter.FormatFloat(0),
|
|
};
|
|
}
|
|
}
|
|
|
|
string prefix = type switch
|
|
{
|
|
AggregateType.S32 => "i",
|
|
AggregateType.U32 => "u",
|
|
_ => string.Empty,
|
|
};
|
|
|
|
Append($"{prefix}vec4({string.Join(", ", cElems)})");
|
|
}
|
|
|
|
if (texOp.Inst == Instruction.ImageAtomic)
|
|
{
|
|
AggregateType type = texOp.Format.GetComponentType();
|
|
|
|
if ((texOp.Flags & TextureFlags.AtomicMask) == TextureFlags.CAS)
|
|
{
|
|
Append(Src(type)); // Compare value.
|
|
}
|
|
|
|
string value = (texOp.Flags & TextureFlags.AtomicMask) switch
|
|
{
|
|
TextureFlags.Increment => NumberFormatter.FormatInt(1, type), // TODO: Clamp value
|
|
TextureFlags.Decrement => NumberFormatter.FormatInt(-1, type), // TODO: Clamp value
|
|
_ => Src(type),
|
|
};
|
|
|
|
Append(value);
|
|
|
|
texCallBuilder.Append(')');
|
|
|
|
if (type != AggregateType.S32)
|
|
{
|
|
texCallBuilder
|
|
.Insert(0, "int(")
|
|
.Append(')');
|
|
}
|
|
}
|
|
else
|
|
{
|
|
texCallBuilder.Append(')');
|
|
|
|
if (texOp.Inst == Instruction.ImageLoad)
|
|
{
|
|
texCallBuilder.Append(GetMaskMultiDest(texOp.Index));
|
|
}
|
|
}
|
|
|
|
return texCallBuilder.ToString();
|
|
}
|
|
|
|
public static string Load(CodeGenContext context, AstOperation operation)
|
|
{
|
|
return GenerateLoadOrStore(context, operation, isStore: false);
|
|
}
|
|
|
|
public static string Lod(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
int coordsCount = texOp.Type.GetDimensions();
|
|
int coordsIndex = 0;
|
|
|
|
string samplerName = GetSamplerName(context, texOp, ref coordsIndex);
|
|
|
|
string coordsExpr;
|
|
|
|
if (coordsCount > 1)
|
|
{
|
|
string[] elems = new string[coordsCount];
|
|
|
|
for (int index = 0; index < coordsCount; index++)
|
|
{
|
|
elems[index] = GetSourceExpr(context, texOp.GetSource(coordsIndex + index), AggregateType.FP32);
|
|
}
|
|
|
|
coordsExpr = "vec" + coordsCount + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
coordsExpr = GetSourceExpr(context, texOp.GetSource(coordsIndex), AggregateType.FP32);
|
|
}
|
|
|
|
return $"textureQueryLod({samplerName}, {coordsExpr}){GetMask(texOp.Index)}";
|
|
}
|
|
|
|
public static string Store(CodeGenContext context, AstOperation operation)
|
|
{
|
|
return GenerateLoadOrStore(context, operation, isStore: true);
|
|
}
|
|
|
|
public static string TextureSample(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
bool isGather = (texOp.Flags & TextureFlags.Gather) != 0;
|
|
bool hasDerivatives = (texOp.Flags & TextureFlags.Derivatives) != 0;
|
|
bool intCoords = (texOp.Flags & TextureFlags.IntCoords) != 0;
|
|
bool hasLodBias = (texOp.Flags & TextureFlags.LodBias) != 0;
|
|
bool hasLodLevel = (texOp.Flags & TextureFlags.LodLevel) != 0;
|
|
bool hasOffset = (texOp.Flags & TextureFlags.Offset) != 0;
|
|
bool hasOffsets = (texOp.Flags & TextureFlags.Offsets) != 0;
|
|
|
|
bool isArray = (texOp.Type & SamplerType.Array) != 0;
|
|
bool isMultisample = (texOp.Type & SamplerType.Multisample) != 0;
|
|
bool isShadow = (texOp.Type & SamplerType.Shadow) != 0;
|
|
|
|
SamplerType type = texOp.Type & SamplerType.Mask;
|
|
|
|
bool is2D = type == SamplerType.Texture2D;
|
|
bool isCube = type == SamplerType.TextureCube;
|
|
|
|
// 2D Array and Cube shadow samplers with LOD level or bias requires an extension.
|
|
// If the extension is not supported, just remove the LOD parameter.
|
|
if (isArray && isShadow && (is2D || isCube) && !context.HostCapabilities.SupportsTextureShadowLod)
|
|
{
|
|
hasLodBias = false;
|
|
hasLodLevel = false;
|
|
}
|
|
|
|
// Cube shadow samplers with LOD level requires an extension.
|
|
// If the extension is not supported, just remove the LOD level parameter.
|
|
if (isShadow && isCube && !context.HostCapabilities.SupportsTextureShadowLod)
|
|
{
|
|
hasLodLevel = false;
|
|
}
|
|
|
|
string texCall = intCoords ? "texelFetch" : "texture";
|
|
|
|
if (isGather)
|
|
{
|
|
texCall += "Gather";
|
|
}
|
|
else if (hasDerivatives)
|
|
{
|
|
texCall += "Grad";
|
|
}
|
|
else if (hasLodLevel && !intCoords)
|
|
{
|
|
texCall += "Lod";
|
|
}
|
|
|
|
if (hasOffset)
|
|
{
|
|
texCall += "Offset";
|
|
}
|
|
else if (hasOffsets)
|
|
{
|
|
texCall += "Offsets";
|
|
}
|
|
|
|
int srcIndex = 0;
|
|
|
|
string Src(AggregateType type)
|
|
{
|
|
return GetSourceExpr(context, texOp.GetSource(srcIndex++), type);
|
|
}
|
|
|
|
string samplerName = GetSamplerName(context, texOp, ref srcIndex);
|
|
|
|
texCall += "(" + samplerName;
|
|
|
|
int coordsCount = texOp.Type.GetDimensions();
|
|
|
|
int pCount = coordsCount;
|
|
|
|
int arrayIndexElem = -1;
|
|
|
|
if (isArray)
|
|
{
|
|
arrayIndexElem = pCount++;
|
|
}
|
|
|
|
// The sampler 1D shadow overload expects a
|
|
// dummy value on the middle of the vector, who knows why...
|
|
bool hasDummy1DShadowElem = texOp.Type == (SamplerType.Texture1D | SamplerType.Shadow);
|
|
|
|
if (hasDummy1DShadowElem)
|
|
{
|
|
pCount++;
|
|
}
|
|
|
|
if (isShadow && !isGather)
|
|
{
|
|
pCount++;
|
|
}
|
|
|
|
// On textureGather*, the comparison value is
|
|
// always specified as an extra argument.
|
|
bool hasExtraCompareArg = isShadow && isGather;
|
|
|
|
if (pCount == 5)
|
|
{
|
|
pCount = 4;
|
|
|
|
hasExtraCompareArg = true;
|
|
}
|
|
|
|
void Append(string str)
|
|
{
|
|
texCall += ", " + str;
|
|
}
|
|
|
|
AggregateType coordType = intCoords ? AggregateType.S32 : AggregateType.FP32;
|
|
|
|
string AssemblePVector(int count)
|
|
{
|
|
if (count > 1)
|
|
{
|
|
string[] elems = new string[count];
|
|
|
|
for (int index = 0; index < count; index++)
|
|
{
|
|
if (arrayIndexElem == index)
|
|
{
|
|
elems[index] = Src(AggregateType.S32);
|
|
|
|
if (!intCoords)
|
|
{
|
|
elems[index] = "float(" + elems[index] + ")";
|
|
}
|
|
}
|
|
else if (index == 1 && hasDummy1DShadowElem)
|
|
{
|
|
elems[index] = NumberFormatter.FormatFloat(0);
|
|
}
|
|
else
|
|
{
|
|
elems[index] = Src(coordType);
|
|
}
|
|
}
|
|
|
|
string prefix = intCoords ? "i" : string.Empty;
|
|
|
|
return prefix + "vec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(coordType);
|
|
}
|
|
}
|
|
|
|
Append(AssemblePVector(pCount));
|
|
|
|
string AssembleDerivativesVector(int count)
|
|
{
|
|
if (count > 1)
|
|
{
|
|
string[] elems = new string[count];
|
|
|
|
for (int index = 0; index < count; index++)
|
|
{
|
|
elems[index] = Src(AggregateType.FP32);
|
|
}
|
|
|
|
return "vec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(AggregateType.FP32);
|
|
}
|
|
}
|
|
|
|
if (hasExtraCompareArg)
|
|
{
|
|
Append(Src(AggregateType.FP32));
|
|
}
|
|
|
|
if (hasDerivatives)
|
|
{
|
|
Append(AssembleDerivativesVector(coordsCount)); // dPdx
|
|
Append(AssembleDerivativesVector(coordsCount)); // dPdy
|
|
}
|
|
|
|
if (isMultisample)
|
|
{
|
|
Append(Src(AggregateType.S32));
|
|
}
|
|
else if (hasLodLevel)
|
|
{
|
|
Append(Src(coordType));
|
|
}
|
|
|
|
string AssembleOffsetVector(int count)
|
|
{
|
|
if (count > 1)
|
|
{
|
|
string[] elems = new string[count];
|
|
|
|
for (int index = 0; index < count; index++)
|
|
{
|
|
elems[index] = Src(AggregateType.S32);
|
|
}
|
|
|
|
return "ivec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(AggregateType.S32);
|
|
}
|
|
}
|
|
|
|
if (hasOffset)
|
|
{
|
|
Append(AssembleOffsetVector(coordsCount));
|
|
}
|
|
else if (hasOffsets)
|
|
{
|
|
texCall += $", ivec{coordsCount}[4](";
|
|
|
|
texCall += AssembleOffsetVector(coordsCount) + ", ";
|
|
texCall += AssembleOffsetVector(coordsCount) + ", ";
|
|
texCall += AssembleOffsetVector(coordsCount) + ", ";
|
|
texCall += AssembleOffsetVector(coordsCount) + ")";
|
|
}
|
|
|
|
if (hasLodBias)
|
|
{
|
|
Append(Src(AggregateType.FP32));
|
|
}
|
|
|
|
// textureGather* optional extra component index,
|
|
// not needed for shadow samplers.
|
|
if (isGather && !isShadow)
|
|
{
|
|
Append(Src(AggregateType.S32));
|
|
}
|
|
|
|
bool colorIsVector = isGather || !isShadow;
|
|
|
|
texCall += ")" + (colorIsVector ? GetMaskMultiDest(texOp.Index) : "");
|
|
|
|
return texCall;
|
|
}
|
|
|
|
public static string TextureQuerySamples(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
int srcIndex = 0;
|
|
|
|
string samplerName = GetSamplerName(context, texOp, ref srcIndex);
|
|
|
|
return $"textureSamples({samplerName})";
|
|
}
|
|
|
|
public static string TextureQuerySize(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
int srcIndex = 0;
|
|
|
|
string samplerName = GetSamplerName(context, texOp, ref srcIndex);
|
|
|
|
if (texOp.Index == 3)
|
|
{
|
|
return $"textureQueryLevels({samplerName})";
|
|
}
|
|
else
|
|
{
|
|
context.Properties.Textures.TryGetValue(texOp.Binding, out TextureDefinition definition);
|
|
bool hasLod = !definition.Type.HasFlag(SamplerType.Multisample) && (definition.Type & SamplerType.Mask) != SamplerType.TextureBuffer;
|
|
string texCall;
|
|
|
|
if (hasLod)
|
|
{
|
|
IAstNode lod = operation.GetSource(srcIndex);
|
|
string lodExpr = GetSourceExpr(context, lod, GetSrcVarType(operation.Inst, srcIndex));
|
|
|
|
texCall = $"textureSize({samplerName}, {lodExpr}){GetMask(texOp.Index)}";
|
|
}
|
|
else
|
|
{
|
|
texCall = $"textureSize({samplerName}){GetMask(texOp.Index)}";
|
|
}
|
|
|
|
return texCall;
|
|
}
|
|
}
|
|
|
|
public static string GenerateLoadOrStore(CodeGenContext context, AstOperation operation, bool isStore)
|
|
{
|
|
StorageKind storageKind = operation.StorageKind;
|
|
|
|
string varName;
|
|
AggregateType varType;
|
|
int srcIndex = 0;
|
|
bool isStoreOrAtomic = operation.Inst == Instruction.Store || operation.Inst.IsAtomic();
|
|
int inputsCount = isStoreOrAtomic ? operation.SourcesCount - 1 : operation.SourcesCount;
|
|
|
|
if (operation.Inst == Instruction.AtomicCompareAndSwap)
|
|
{
|
|
inputsCount--;
|
|
}
|
|
|
|
switch (storageKind)
|
|
{
|
|
case StorageKind.ConstantBuffer:
|
|
case StorageKind.StorageBuffer:
|
|
if (operation.GetSource(srcIndex++) is not AstOperand bindingIndex || bindingIndex.Type != OperandType.Constant)
|
|
{
|
|
throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand.");
|
|
}
|
|
|
|
int binding = bindingIndex.Value;
|
|
BufferDefinition buffer = storageKind == StorageKind.ConstantBuffer
|
|
? context.Properties.ConstantBuffers[binding]
|
|
: context.Properties.StorageBuffers[binding];
|
|
|
|
if (operation.GetSource(srcIndex++) is not AstOperand fieldIndex || fieldIndex.Type != OperandType.Constant)
|
|
{
|
|
throw new InvalidOperationException($"Second input of {operation.Inst} with {storageKind} storage must be a constant operand.");
|
|
}
|
|
|
|
StructureField field = buffer.Type.Fields[fieldIndex.Value];
|
|
varName = $"{buffer.Name}.{field.Name}";
|
|
varType = field.Type;
|
|
break;
|
|
|
|
case StorageKind.LocalMemory:
|
|
case StorageKind.SharedMemory:
|
|
if (operation.GetSource(srcIndex++) is not AstOperand { Type: OperandType.Constant } bindingId)
|
|
{
|
|
throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand.");
|
|
}
|
|
|
|
MemoryDefinition memory = storageKind == StorageKind.LocalMemory
|
|
? context.Properties.LocalMemories[bindingId.Value]
|
|
: context.Properties.SharedMemories[bindingId.Value];
|
|
|
|
varName = memory.Name;
|
|
varType = memory.Type;
|
|
break;
|
|
|
|
case StorageKind.Input:
|
|
case StorageKind.InputPerPatch:
|
|
case StorageKind.Output:
|
|
case StorageKind.OutputPerPatch:
|
|
if (operation.GetSource(srcIndex++) is not AstOperand varId || varId.Type != OperandType.Constant)
|
|
{
|
|
throw new InvalidOperationException($"First input of {operation.Inst} with {storageKind} storage must be a constant operand.");
|
|
}
|
|
|
|
IoVariable ioVariable = (IoVariable)varId.Value;
|
|
bool isOutput = storageKind.IsOutput();
|
|
bool isPerPatch = storageKind.IsPerPatch();
|
|
int location = -1;
|
|
int component = 0;
|
|
|
|
if (context.Definitions.HasPerLocationInputOrOutput(ioVariable, isOutput))
|
|
{
|
|
if (operation.GetSource(srcIndex++) is not AstOperand vecIndex || vecIndex.Type != OperandType.Constant)
|
|
{
|
|
throw new InvalidOperationException($"Second input of {operation.Inst} with {storageKind} storage must be a constant operand.");
|
|
}
|
|
|
|
location = vecIndex.Value;
|
|
|
|
if (operation.SourcesCount > srcIndex &&
|
|
operation.GetSource(srcIndex) is AstOperand elemIndex &&
|
|
elemIndex.Type == OperandType.Constant &&
|
|
context.Definitions.HasPerLocationInputOrOutputComponent(ioVariable, location, elemIndex.Value, isOutput))
|
|
{
|
|
component = elemIndex.Value;
|
|
srcIndex++;
|
|
}
|
|
}
|
|
|
|
(varName, varType) = IoMap.GetGlslVariable(
|
|
context.Definitions,
|
|
context.HostCapabilities,
|
|
ioVariable,
|
|
location,
|
|
component,
|
|
isOutput,
|
|
isPerPatch);
|
|
|
|
if (IoMap.IsPerVertexBuiltIn(context.Definitions.Stage, ioVariable, isOutput))
|
|
{
|
|
// Since those exist both as input and output on geometry and tessellation shaders,
|
|
// we need the gl_in and gl_out prefixes to disambiguate.
|
|
|
|
if (storageKind == StorageKind.Input)
|
|
{
|
|
string expr = GetSourceExpr(context, operation.GetSource(srcIndex++), AggregateType.S32);
|
|
varName = $"gl_in[{expr}].{varName}";
|
|
}
|
|
else if (storageKind == StorageKind.Output)
|
|
{
|
|
string expr = GetSourceExpr(context, operation.GetSource(srcIndex++), AggregateType.S32);
|
|
varName = $"gl_out[{expr}].{varName}";
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
throw new InvalidOperationException($"Invalid storage kind {storageKind}.");
|
|
}
|
|
|
|
int firstSrcIndex = srcIndex;
|
|
|
|
for (; srcIndex < inputsCount; srcIndex++)
|
|
{
|
|
IAstNode src = operation.GetSource(srcIndex);
|
|
|
|
if ((varType & AggregateType.ElementCountMask) != 0 &&
|
|
srcIndex == inputsCount - 1 &&
|
|
src is AstOperand elementIndex &&
|
|
elementIndex.Type == OperandType.Constant)
|
|
{
|
|
varName += "." + "xyzw"[elementIndex.Value & 3];
|
|
}
|
|
else if (srcIndex == firstSrcIndex && context.Definitions.Stage == ShaderStage.TessellationControl && storageKind == StorageKind.Output)
|
|
{
|
|
// GLSL requires that for tessellation control shader outputs,
|
|
// that the index expression must be *exactly* "gl_InvocationID",
|
|
// otherwise the compilation fails.
|
|
// TODO: Get rid of this and use expression propagation to make sure we generate the correct code from IR.
|
|
varName += "[gl_InvocationID]";
|
|
}
|
|
else
|
|
{
|
|
varName += $"[{GetSourceExpr(context, src, AggregateType.S32)}]";
|
|
}
|
|
}
|
|
|
|
if (isStore)
|
|
{
|
|
varType &= AggregateType.ElementTypeMask;
|
|
varName = $"{varName} = {GetSourceExpr(context, operation.GetSource(srcIndex), varType)}";
|
|
}
|
|
|
|
return varName;
|
|
}
|
|
|
|
private static string GetSamplerName(CodeGenContext context, AstTextureOperation texOp, ref int srcIndex)
|
|
{
|
|
TextureDefinition definition = context.Properties.Textures[texOp.Binding];
|
|
string name = definition.Name;
|
|
|
|
if (definition.ArrayLength != 1)
|
|
{
|
|
name = $"{name}[{GetSourceExpr(context, texOp.GetSource(srcIndex++), AggregateType.S32)}]";
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
private static string GetImageName(CodeGenContext context, AstTextureOperation texOp, ref int srcIndex)
|
|
{
|
|
TextureDefinition definition = context.Properties.Images[texOp.Binding];
|
|
string name = definition.Name;
|
|
|
|
if (definition.ArrayLength != 1)
|
|
{
|
|
name = $"{name}[{GetSourceExpr(context, texOp.GetSource(srcIndex++), AggregateType.S32)}]";
|
|
}
|
|
|
|
return name;
|
|
}
|
|
|
|
private static string GetMask(int index)
|
|
{
|
|
return $".{"rgba".AsSpan(index, 1)}";
|
|
}
|
|
|
|
private static string GetMaskMultiDest(int mask)
|
|
{
|
|
StringBuilder swizzleBuilder = new();
|
|
swizzleBuilder.Append('.');
|
|
|
|
for (int i = 0; i < 4; i++)
|
|
{
|
|
if ((mask & (1 << i)) != 0)
|
|
{
|
|
swizzleBuilder.Append("xyzw"[i]);
|
|
}
|
|
}
|
|
|
|
return swizzleBuilder.ToString();
|
|
}
|
|
}
|
|
}
|