forked from Mirror/Ryujinx
a1f77a5b6a
* Initial implementation of buffer flush (VERY WIP) * Host shaders need to be rebuilt for the SSBO write flag. * New approach with reserved regions and gl sync * Fix a ton of buffer issues. * Remove unused buffer unmapped behaviour * Revert "Remove unused buffer unmapped behaviour" This reverts commit f1700e52fb8760180ac5e0987a07d409d1e70ece. * Delete modified ranges on unmap Fixes potential crashes in Super Smash Bros, where a previously modified range could lie on either side of an unmap. * Cache some more delegates. * Dispose Sync on Close * Also create host sync for GPFifo syncpoint increment. * Copy buffer optimization, add docs * Fix race condition with OpenGL Sync * Enable read tracking on CommandBuffer, insert syncpoint on WaitForIdle * Performance: Only flush individual pages of SSBO at a time This avoids flushing large amounts of data when only a small amount is actually used. * Signal Modified rather than flushing after clear * Fix some docs and code style. * Introduce a new test for tracking memory protection. Sucessfully demonstrates that the bug causing write protection to be cleared by a read action has been fixed. (these tests fail on master) * Address Comments * Add host sync for SetReference This ensures that any indirect draws will correctly flush any related buffer data written before them. Fixes some flashing and misplaced world geometry in MH rise. * Make PageAlign static * Re-enable read tracking, for reads.
673 lines
No EOL
23 KiB
C#
673 lines
No EOL
23 KiB
C#
using Ryujinx.Graphics.Shader.IntermediateRepresentation;
|
|
using Ryujinx.Graphics.Shader.StructuredIr;
|
|
using System;
|
|
|
|
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 isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
|
|
|
|
// TODO: Bindless texture support. For now we just return 0/do nothing.
|
|
if (isBindless)
|
|
{
|
|
return texOp.Inst == Instruction.ImageLoad ? NumberFormatter.FormatFloat(0) : "// imageStore(bindless)";
|
|
}
|
|
|
|
bool isArray = (texOp.Type & SamplerType.Array) != 0;
|
|
bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0;
|
|
|
|
string texCall = texOp.Inst == Instruction.ImageLoad ? "imageLoad" : "imageStore";
|
|
|
|
int srcIndex = isBindless ? 1 : 0;
|
|
|
|
string Src(VariableType type)
|
|
{
|
|
return GetSoureExpr(context, texOp.GetSource(srcIndex++), type);
|
|
}
|
|
|
|
string indexExpr = null;
|
|
|
|
if (isIndexed)
|
|
{
|
|
indexExpr = Src(VariableType.S32);
|
|
}
|
|
|
|
string imageName = OperandManager.GetImageName(context.Config.Stage, texOp, indexExpr);
|
|
|
|
texCall += "(" + imageName;
|
|
|
|
int coordsCount = texOp.Type.GetDimensions();
|
|
|
|
int pCount = coordsCount + (isArray ? 1 : 0);
|
|
|
|
void Append(string str)
|
|
{
|
|
texCall += ", " + str;
|
|
}
|
|
|
|
string ApplyScaling(string vector)
|
|
{
|
|
int index = context.FindImageDescriptorIndex(texOp);
|
|
TextureUsageFlags flags = TextureUsageFlags.NeedsScaleValue;
|
|
|
|
if ((context.Config.Stage == ShaderStage.Fragment || context.Config.Stage == ShaderStage.Compute) &&
|
|
texOp.Inst == Instruction.ImageLoad &&
|
|
!isBindless &&
|
|
!isIndexed)
|
|
{
|
|
// Image scales start after texture ones.
|
|
int scaleIndex = context.TextureDescriptors.Count + index;
|
|
|
|
if (pCount == 3 && isArray)
|
|
{
|
|
// The array index is not scaled, just x and y.
|
|
vector = "ivec3(Helper_TexelFetchScale((" + vector + ").xy, " + scaleIndex + "), (" + vector + ").z)";
|
|
}
|
|
else if (pCount == 2 && !isArray)
|
|
{
|
|
vector = "Helper_TexelFetchScale(" + vector + ", " + scaleIndex + ")";
|
|
}
|
|
else
|
|
{
|
|
flags |= TextureUsageFlags.ResScaleUnsupported;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
flags |= TextureUsageFlags.ResScaleUnsupported;
|
|
}
|
|
|
|
if (!isBindless)
|
|
{
|
|
context.ImageDescriptors[index] = context.ImageDescriptors[index].SetFlag(flags);
|
|
}
|
|
|
|
return vector;
|
|
}
|
|
|
|
if (pCount > 1)
|
|
{
|
|
string[] elems = new string[pCount];
|
|
|
|
for (int index = 0; index < pCount; index++)
|
|
{
|
|
elems[index] = Src(VariableType.S32);
|
|
}
|
|
|
|
Append(ApplyScaling("ivec" + pCount + "(" + string.Join(", ", elems) + ")"));
|
|
}
|
|
else
|
|
{
|
|
Append(Src(VariableType.S32));
|
|
}
|
|
|
|
if (texOp.Inst == Instruction.ImageStore)
|
|
{
|
|
VariableType 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
|
|
{
|
|
VariableType.S32 => NumberFormatter.FormatInt(0),
|
|
VariableType.U32 => NumberFormatter.FormatUint(0),
|
|
_ => NumberFormatter.FormatFloat(0)
|
|
};
|
|
}
|
|
}
|
|
|
|
string prefix = type switch
|
|
{
|
|
VariableType.S32 => "i",
|
|
VariableType.U32 => "u",
|
|
_ => string.Empty
|
|
};
|
|
|
|
Append(prefix + "vec4(" + string.Join(", ", cElems) + ")");
|
|
}
|
|
|
|
texCall += ")" + (texOp.Inst == Instruction.ImageLoad ? GetMask(texOp.Index) : "");
|
|
|
|
return texCall;
|
|
}
|
|
|
|
public static string LoadAttribute(CodeGenContext context, AstOperation operation)
|
|
{
|
|
IAstNode src1 = operation.GetSource(0);
|
|
IAstNode src2 = operation.GetSource(1);
|
|
|
|
if (!(src1 is AstOperand attr) || attr.Type != OperandType.Attribute)
|
|
{
|
|
throw new InvalidOperationException("First source of LoadAttribute must be a attribute.");
|
|
}
|
|
|
|
string indexExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
|
|
|
|
return OperandManager.GetAttributeName(attr, context.Config, isOutAttr: false, indexExpr);
|
|
}
|
|
|
|
public static string LoadConstant(CodeGenContext context, AstOperation operation)
|
|
{
|
|
IAstNode src1 = operation.GetSource(0);
|
|
IAstNode src2 = operation.GetSource(1);
|
|
|
|
string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
|
|
|
|
offsetExpr = Enclose(offsetExpr, src2, Instruction.ShiftRightS32, isLhs: true);
|
|
|
|
if (src1 is AstOperand oper && oper.Type == OperandType.Constant)
|
|
{
|
|
return OperandManager.GetConstantBufferName(oper.Value, offsetExpr, context.Config.Stage, context.CbIndexable);
|
|
}
|
|
else
|
|
{
|
|
string slotExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
|
|
|
|
return OperandManager.GetConstantBufferName(slotExpr, offsetExpr, context.Config.Stage);
|
|
}
|
|
}
|
|
|
|
public static string LoadLocal(CodeGenContext context, AstOperation operation)
|
|
{
|
|
return LoadLocalOrShared(context, operation, DefaultNames.LocalMemoryName);
|
|
}
|
|
|
|
public static string LoadShared(CodeGenContext context, AstOperation operation)
|
|
{
|
|
return LoadLocalOrShared(context, operation, DefaultNames.SharedMemoryName);
|
|
}
|
|
|
|
private static string LoadLocalOrShared(CodeGenContext context, AstOperation operation, string arrayName)
|
|
{
|
|
IAstNode src1 = operation.GetSource(0);
|
|
|
|
string offsetExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
|
|
|
|
return $"{arrayName}[{offsetExpr}]";
|
|
}
|
|
|
|
public static string LoadStorage(CodeGenContext context, AstOperation operation)
|
|
{
|
|
IAstNode src1 = operation.GetSource(0);
|
|
IAstNode src2 = operation.GetSource(1);
|
|
|
|
string indexExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
|
|
string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
|
|
|
|
return GetStorageBufferAccessor(indexExpr, offsetExpr, context.Config.Stage);
|
|
}
|
|
|
|
public static string Lod(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
int coordsCount = texOp.Type.GetDimensions();
|
|
|
|
bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
|
|
|
|
// TODO: Bindless texture support. For now we just return 0.
|
|
if (isBindless)
|
|
{
|
|
return NumberFormatter.FormatFloat(0);
|
|
}
|
|
|
|
bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0;
|
|
|
|
string indexExpr = null;
|
|
|
|
if (isIndexed)
|
|
{
|
|
indexExpr = GetSoureExpr(context, texOp.GetSource(0), VariableType.S32);
|
|
}
|
|
|
|
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
|
|
|
|
int coordsIndex = isBindless || isIndexed ? 1 : 0;
|
|
|
|
string coordsExpr;
|
|
|
|
if (coordsCount > 1)
|
|
{
|
|
string[] elems = new string[coordsCount];
|
|
|
|
for (int index = 0; index < coordsCount; index++)
|
|
{
|
|
elems[index] = GetSoureExpr(context, texOp.GetSource(coordsIndex + index), VariableType.F32);
|
|
}
|
|
|
|
coordsExpr = "vec" + coordsCount + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
coordsExpr = GetSoureExpr(context, texOp.GetSource(coordsIndex), VariableType.F32);
|
|
}
|
|
|
|
return $"textureQueryLod({samplerName}, {coordsExpr}){GetMask(texOp.Index)}";
|
|
}
|
|
|
|
public static string StoreLocal(CodeGenContext context, AstOperation operation)
|
|
{
|
|
return StoreLocalOrShared(context, operation, DefaultNames.LocalMemoryName);
|
|
}
|
|
|
|
public static string StoreShared(CodeGenContext context, AstOperation operation)
|
|
{
|
|
return StoreLocalOrShared(context, operation, DefaultNames.SharedMemoryName);
|
|
}
|
|
|
|
private static string StoreLocalOrShared(CodeGenContext context, AstOperation operation, string arrayName)
|
|
{
|
|
IAstNode src1 = operation.GetSource(0);
|
|
IAstNode src2 = operation.GetSource(1);
|
|
|
|
string offsetExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
|
|
|
|
VariableType srcType = OperandManager.GetNodeDestType(context, src2);
|
|
|
|
string src = TypeConversion.ReinterpretCast(context, src2, srcType, VariableType.U32);
|
|
|
|
return $"{arrayName}[{offsetExpr}] = {src}";
|
|
}
|
|
|
|
public static string StoreStorage(CodeGenContext context, AstOperation operation)
|
|
{
|
|
IAstNode src1 = operation.GetSource(0);
|
|
IAstNode src2 = operation.GetSource(1);
|
|
IAstNode src3 = operation.GetSource(2);
|
|
|
|
string indexExpr = GetSoureExpr(context, src1, GetSrcVarType(operation.Inst, 0));
|
|
string offsetExpr = GetSoureExpr(context, src2, GetSrcVarType(operation.Inst, 1));
|
|
|
|
VariableType srcType = OperandManager.GetNodeDestType(context, src3);
|
|
|
|
string src = TypeConversion.ReinterpretCast(context, src3, srcType, VariableType.U32);
|
|
|
|
SetStorageWriteFlag(context, src1, context.Config.Stage);
|
|
string sb = GetStorageBufferAccessor(indexExpr, offsetExpr, context.Config.Stage);
|
|
|
|
return $"{sb} = {src}";
|
|
}
|
|
|
|
public static string TextureSample(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
|
|
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 isIndexed = (texOp.Type & SamplerType.Indexed) != 0;
|
|
bool isMultisample = (texOp.Type & SamplerType.Multisample) != 0;
|
|
bool isShadow = (texOp.Type & SamplerType.Shadow) != 0;
|
|
|
|
// TODO: Bindless texture support. For now we just return 0.
|
|
if (isBindless)
|
|
{
|
|
return NumberFormatter.FormatFloat(0);
|
|
}
|
|
|
|
// This combination is valid, but not available on GLSL.
|
|
// For now, ignore the LOD level and do a normal sample.
|
|
// TODO: How to implement it properly?
|
|
if (hasLodLevel && isArray && isShadow)
|
|
{
|
|
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 = isBindless ? 1 : 0;
|
|
|
|
string Src(VariableType type)
|
|
{
|
|
return GetSoureExpr(context, texOp.GetSource(srcIndex++), type);
|
|
}
|
|
|
|
string indexExpr = null;
|
|
|
|
if (isIndexed)
|
|
{
|
|
indexExpr = Src(VariableType.S32);
|
|
}
|
|
|
|
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
|
|
|
|
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;
|
|
}
|
|
|
|
VariableType coordType = intCoords ? VariableType.S32 : VariableType.F32;
|
|
|
|
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(VariableType.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);
|
|
}
|
|
}
|
|
|
|
string ApplyScaling(string vector)
|
|
{
|
|
if (intCoords)
|
|
{
|
|
int index = context.FindTextureDescriptorIndex(texOp);
|
|
TextureUsageFlags flags = TextureUsageFlags.NeedsScaleValue;
|
|
|
|
if ((context.Config.Stage == ShaderStage.Fragment || context.Config.Stage == ShaderStage.Compute) &&
|
|
!isBindless &&
|
|
!isIndexed)
|
|
{
|
|
if (pCount == 3 && isArray)
|
|
{
|
|
// The array index is not scaled, just x and y.
|
|
vector = "ivec3(Helper_TexelFetchScale((" + vector + ").xy, " + index + "), (" + vector + ").z)";
|
|
}
|
|
else if (pCount == 2 && !isArray)
|
|
{
|
|
vector = "Helper_TexelFetchScale(" + vector + ", " + index + ")";
|
|
}
|
|
else
|
|
{
|
|
flags |= TextureUsageFlags.ResScaleUnsupported;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Resolution scaling cannot be applied to this texture right now.
|
|
// Flag so that we know to blacklist scaling on related textures when binding them.
|
|
|
|
flags |= TextureUsageFlags.ResScaleUnsupported;
|
|
}
|
|
|
|
if (!isBindless)
|
|
{
|
|
context.TextureDescriptors[index] = context.TextureDescriptors[index].SetFlag(flags);
|
|
}
|
|
}
|
|
|
|
return vector;
|
|
}
|
|
|
|
Append(ApplyScaling(AssemblePVector(pCount)));
|
|
|
|
string AssembleDerivativesVector(int count)
|
|
{
|
|
if (count > 1)
|
|
{
|
|
string[] elems = new string[count];
|
|
|
|
for (int index = 0; index < count; index++)
|
|
{
|
|
elems[index] = Src(VariableType.F32);
|
|
}
|
|
|
|
return "vec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(VariableType.F32);
|
|
}
|
|
}
|
|
|
|
if (hasExtraCompareArg)
|
|
{
|
|
Append(Src(VariableType.F32));
|
|
}
|
|
|
|
if (hasDerivatives)
|
|
{
|
|
Append(AssembleDerivativesVector(coordsCount)); // dPdx
|
|
Append(AssembleDerivativesVector(coordsCount)); // dPdy
|
|
}
|
|
|
|
if (isMultisample)
|
|
{
|
|
Append(Src(VariableType.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(VariableType.S32);
|
|
}
|
|
|
|
return "ivec" + count + "(" + string.Join(", ", elems) + ")";
|
|
}
|
|
else
|
|
{
|
|
return Src(VariableType.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(VariableType.F32));
|
|
}
|
|
|
|
// textureGather* optional extra component index,
|
|
// not needed for shadow samplers.
|
|
if (isGather && !isShadow)
|
|
{
|
|
Append(Src(VariableType.S32));
|
|
}
|
|
|
|
texCall += ")" + (isGather || !isShadow ? GetMask(texOp.Index) : "");
|
|
|
|
return texCall;
|
|
}
|
|
|
|
public static string TextureSize(CodeGenContext context, AstOperation operation)
|
|
{
|
|
AstTextureOperation texOp = (AstTextureOperation)operation;
|
|
|
|
bool isBindless = (texOp.Flags & TextureFlags.Bindless) != 0;
|
|
|
|
// TODO: Bindless texture support. For now we just return 0.
|
|
if (isBindless)
|
|
{
|
|
return NumberFormatter.FormatInt(0);
|
|
}
|
|
|
|
bool isIndexed = (texOp.Type & SamplerType.Indexed) != 0;
|
|
|
|
string indexExpr = null;
|
|
|
|
if (isIndexed)
|
|
{
|
|
indexExpr = GetSoureExpr(context, texOp.GetSource(0), VariableType.S32);
|
|
}
|
|
|
|
string samplerName = OperandManager.GetSamplerName(context.Config.Stage, texOp, indexExpr);
|
|
|
|
int lodSrcIndex = isBindless || isIndexed ? 1 : 0;
|
|
|
|
IAstNode lod = operation.GetSource(lodSrcIndex);
|
|
|
|
string lodExpr = GetSoureExpr(context, lod, GetSrcVarType(operation.Inst, lodSrcIndex));
|
|
|
|
if (texOp.Index == 3)
|
|
{
|
|
return $"textureQueryLevels({samplerName})";
|
|
}
|
|
else
|
|
{
|
|
return $"textureSize({samplerName}, {lodExpr}){GetMask(texOp.Index)}";
|
|
}
|
|
}
|
|
|
|
private static void SetStorageWriteFlag(CodeGenContext context, IAstNode indexExpr, ShaderStage stage)
|
|
{
|
|
// Attempt to find a BufferDescriptor with the given index.
|
|
// If it cannot be resolved or is not constant, assume that the slot expression could potentially index any of them,
|
|
// and set the flag on all storage buffers.
|
|
|
|
int index = -1;
|
|
|
|
if (indexExpr is AstOperand operand && operand.Type == OperandType.Constant)
|
|
{
|
|
index = context.SBufferDescriptors.FindIndex(buffer => buffer.Slot == operand.Value);
|
|
}
|
|
|
|
if (index != -1)
|
|
{
|
|
context.SBufferDescriptors[index] = context.SBufferDescriptors[index].SetFlag(BufferUsageFlags.Write);
|
|
}
|
|
else
|
|
{
|
|
for (int i = 0; i < context.SBufferDescriptors.Count; i++)
|
|
{
|
|
context.SBufferDescriptors[i] = context.SBufferDescriptors[i].SetFlag(BufferUsageFlags.Write);
|
|
}
|
|
}
|
|
}
|
|
|
|
private static string GetStorageBufferAccessor(string slotExpr, string offsetExpr, ShaderStage stage)
|
|
{
|
|
string sbName = OperandManager.GetShaderStagePrefix(stage);
|
|
|
|
sbName += "_" + DefaultNames.StorageNamePrefix;
|
|
|
|
return $"{sbName}[{slotExpr}].{DefaultNames.DataName}[{offsetExpr}]";
|
|
}
|
|
|
|
private static string GetMask(int index)
|
|
{
|
|
return '.' + "rgba".Substring(index, 1);
|
|
}
|
|
}
|
|
} |