TString TOutputGLSLBase::getTypeName(const TType& type)
{
TInfoSinkBase out;
if (type.isMatrix())
{
out << "mat";
out << type.getNominalSize();
}
else if (type.isVector())
{
switch (type.getBasicType())
{
case EbtFloat: out << "vec"; break;
case EbtInt: out << "ivec"; break;
case EbtBool: out << "bvec"; break;
default: UNREACHABLE(); break;
}
out << type.getNominalSize();
}
else
{
if (type.getBasicType() == EbtStruct)
out << hashName(type.getTypeName());
else
out << type.getBasicString();
}
return TString(out.c_str());
}
// Accumulate locations used for inputs, outputs, and uniforms, and check for collisions
// as the accumulation is done.
//
// Returns < 0 if no collision, >= 0 if collision and the value returned is a colliding value.
//
// typeCollision is set to true if there is no direct collision, but the types in the same location
// are different.
//
int TIntermediate::addUsedLocation(const TQualifier& qualifier, const TType& type, bool& typeCollision)
{
typeCollision = false;
int set;
if (qualifier.isPipeInput())
set = 0;
else if (qualifier.isPipeOutput())
set = 1;
else if (qualifier.storage == EvqUniform)
set = 2;
else if (qualifier.storage == EvqBuffer)
set = 3;
else
return -1;
int size;
if (qualifier.isUniformOrBuffer()) {
if (type.isArray())
size = type.getCumulativeArraySize();
else
size = 1;
} else {
// Strip off the outer array dimension for those having an extra one.
if (type.isArray() && qualifier.isArrayedIo(language)) {
TType elementType(type, 0);
size = computeTypeLocationSize(elementType);
} else
size = computeTypeLocationSize(type);
}
TRange locationRange(qualifier.layoutLocation, qualifier.layoutLocation + size - 1);
TRange componentRange(0, 3);
if (qualifier.hasComponent()) {
componentRange.start = qualifier.layoutComponent;
componentRange.last = componentRange.start + type.getVectorSize() - 1;
}
TIoRange range(locationRange, componentRange, type.getBasicType(), qualifier.hasIndex() ? qualifier.layoutIndex : 0);
// check for collisions, except for vertex inputs on desktop
if (! (profile != EEsProfile && language == EShLangVertex && qualifier.isPipeInput())) {
for (size_t r = 0; r < usedIo[set].size(); ++r) {
if (range.overlap(usedIo[set][r])) {
// there is a collision; pick one
return std::max(locationRange.start, usedIo[set][r].location.start);
} else if (locationRange.overlap(usedIo[set][r].location) && type.getBasicType() != usedIo[set][r].basicType) {
// aliased-type mismatch
typeCollision = true;
return std::max(locationRange.start, usedIo[set][r].location.start);
}
}
}
usedIo[set].push_back(range);
return -1; // no collision
}
bool TParseContext::parameterSamplerErrorCheck(int line, TQualifier qualifier, const TType& type)
{
if ((qualifier == EvqOut || qualifier == EvqInOut) &&
type.getBasicType() != EbtStruct && IsSampler(type.getBasicType())) {
error(line, "samplers cannot be output parameters", type.getBasicString(), "");
return true;
}
return false;
}
void UniformHLSL::outputHLSL4_0_FL9_3Sampler(TInfoSinkBase &out,
const TType &type,
const TName &name,
const unsigned int registerIndex)
{
out << "uniform " << SamplerString(type.getBasicType()) << " sampler_"
<< DecorateUniform(name, type) << ArrayString(type) << " : register(s" << str(registerIndex)
<< ");\n";
out << "uniform " << TextureString(type.getBasicType()) << " texture_"
<< DecorateUniform(name, type) << ArrayString(type) << " : register(t" << str(registerIndex)
<< ");\n";
}
bool TParseContext::containsSampler(TType& type)
{
if (IsSampler(type.getBasicType()))
return true;
if (type.getBasicType() == EbtStruct) {
TTypeList& structure = *type.getStruct();
for (unsigned int i = 0; i < structure.size(); ++i) {
if (containsSampler(*structure[i].type))
return true;
}
}
return false;
}
TString TOutputGLSLBase::getTypeName(const TType &type)
{
if (type.getBasicType() == EbtStruct)
return hashName(type.getStruct()->name());
else
return type.getBuiltInTypeNameString();
}
void TOutputGLSLBase::writeVariableType(const TType& type)
{
TInfoSinkBase& out = objSink();
TQualifier qualifier = type.getQualifier();
// TODO(alokp): Validate qualifier for variable declarations.
if ((qualifier != EvqTemporary) && (qualifier != EvqGlobal))
out << type.getQualifierString() << " ";
// Declare the struct if we have not done so already.
if ((type.getBasicType() == EbtStruct) &&
(mDeclaredStructs.find(type.getTypeName()) == mDeclaredStructs.end()))
{
out << "struct " << type.getTypeName() << "{\n";
const TTypeList* structure = type.getStruct();
ASSERT(structure != NULL);
for (size_t i = 0; i < structure->size(); ++i)
{
const TType* fieldType = (*structure)[i].type;
ASSERT(fieldType != NULL);
if (writeVariablePrecision(fieldType->getPrecision()))
out << " ";
out << getTypeName(*fieldType) << " " << fieldType->getFieldName();
if (fieldType->isArray())
out << arrayBrackets(*fieldType);
out << ";\n";
}
out << "}";
mDeclaredStructs.insert(type.getTypeName());
}
else
{
if (writeVariablePrecision(type.getPrecision()))
out << " ";
out << getTypeName(type);
}
}
TString TextureString(const TType &type)
{
switch (type.getBasicType())
{
case EbtSampler2D: return "Texture2D";
case EbtSamplerCube: return "TextureCube";
case EbtSamplerExternalOES: return "Texture2D";
case EbtSampler2DArray: return "Texture2DArray";
case EbtSampler3D: return "Texture3D";
case EbtISampler2D: return "Texture2D<int4>";
case EbtISampler3D: return "Texture3D<int4>";
case EbtISamplerCube: return "Texture2DArray<int4>";
case EbtISampler2DArray: return "Texture2DArray<int4>";
case EbtUSampler2D: return "Texture2D<uint4>";
case EbtUSampler3D: return "Texture3D<uint4>";
case EbtUSamplerCube: return "Texture2DArray<uint4>";
case EbtUSampler2DArray: return "Texture2DArray<uint4>";
case EbtSampler2DShadow: return "Texture2D";
case EbtSamplerCubeShadow: return "TextureCube";
case EbtSampler2DArrayShadow: return "Texture2DArray";
default: UNREACHABLE();
}
return "<unknown texture type>";
}
void TOutputGLSLBase::writeVariableType(const TType &type)
{
TInfoSinkBase &out = objSink();
TQualifier qualifier = type.getQualifier();
if (qualifier != EvqTemporary && qualifier != EvqGlobal)
{
out << type.getQualifierString() << " ";
}
// Declare the struct if we have not done so already.
if (type.getBasicType() == EbtStruct && !structDeclared(type.getStruct()))
{
TStructure *structure = type.getStruct();
declareStruct(structure);
if (!structure->name().empty())
{
mDeclaredStructs.insert(structure->uniqueId());
}
}
else
{
if (writeVariablePrecision(type.getPrecision()))
out << " ";
out << getTypeName(type);
}
}
unsigned int UniformHLSL::assignUniformRegister(const TType &type,
const TString &name,
unsigned int *outRegisterCount)
{
unsigned int registerIndex = (IsSampler(type.getBasicType()) ? mSamplerRegister : mUniformRegister);
const Uniform *uniform = findUniformByName(name);
ASSERT(uniform);
mUniformRegisterMap[uniform->name] = registerIndex;
unsigned int registerCount = HLSLVariableRegisterCount(*uniform, mOutputType);
if (gl::IsSamplerType(uniform->type))
{
mSamplerRegister += registerCount;
}
else
{
mUniformRegister += registerCount;
}
if (outRegisterCount)
{
*outRegisterCount = registerCount;
}
return registerIndex;
}
// Recursively figure out how many bytes of xfb buffer are used by the given type.
// Return the size of type, in bytes.
// Sets containsDouble to true if the type contains a double.
// N.B. Caller must set containsDouble to false before calling.
unsigned int TIntermediate::computeTypeXfbSize(const TType& type, bool& containsDouble) const
{
// "...if applied to an aggregate containing a double, the offset must also be a multiple of 8,
// and the space taken in the buffer will be a multiple of 8.
// ...within the qualified entity, subsequent components are each
// assigned, in order, to the next available offset aligned to a multiple of
// that component's size. Aggregate types are flattened down to the component
// level to get this sequence of components."
if (type.isArray()) {
// TODO: perf: this can be flattened by using getCumulativeArraySize(), and a deref that discards all arrayness
assert(type.isExplicitlySizedArray());
TType elementType(type, 0);
return type.getOuterArraySize() * computeTypeXfbSize(elementType, containsDouble);
}
if (type.isStruct()) {
unsigned int size = 0;
bool structContainsDouble = false;
for (int member = 0; member < (int)type.getStruct()->size(); ++member) {
TType memberType(type, member);
// "... if applied to
// an aggregate containing a double, the offset must also be a multiple of 8,
// and the space taken in the buffer will be a multiple of 8."
bool memberContainsDouble = false;
int memberSize = computeTypeXfbSize(memberType, memberContainsDouble);
if (memberContainsDouble) {
structContainsDouble = true;
RoundToPow2(size, 8);
}
size += memberSize;
}
if (structContainsDouble) {
containsDouble = true;
RoundToPow2(size, 8);
}
return size;
}
int numComponents;
if (type.isScalar())
numComponents = 1;
else if (type.isVector())
numComponents = type.getVectorSize();
else if (type.isMatrix())
numComponents = type.getMatrixCols() * type.getMatrixRows();
else {
assert(0);
numComponents = 1;
}
if (type.getBasicType() == EbtDouble) {
containsDouble = true;
return 8 * numComponents;
} else
return 4 * numComponents;
}
// Return the size and alignment of a scalar.
// The size is returned in the 'size' parameter
// Return value is the alignment of the type.
int TIntermediate::getBaseAlignmentScalar(const TType& type, int& size)
{
switch (type.getBasicType()) {
case EbtInt64:
case EbtUint64:
case EbtDouble: size = 8; return 8;
default: size = 4; return 4;
}
}
TString DecorateUniform(const TString &string, const TType &type)
{
if (type.getBasicType() == EbtSamplerExternalOES)
{
return "ex_" + string;
}
return Decorate(string);
}
TString DecorateUniform(const TName &name, const TType &type)
{
if (type.getBasicType() == EbtSamplerExternalOES)
{
return "ex_" + name.getString();
}
return DecorateIfNeeded(name);
}
int UniformHLSL::declareUniformAndAssignRegister(const TType &type, const TString &name)
{
int registerIndex = (IsSampler(type.getBasicType()) ? mSamplerRegister : mUniformRegister);
declareUniformToList(type, name, registerIndex, &mActiveUniforms);
unsigned int registerCount = HLSLVariableRegisterCount(mActiveUniforms.back(), mOutputType);
if (IsSampler(type.getBasicType()))
{
mSamplerRegister += registerCount;
}
else
{
mUniformRegister += registerCount;
}
return registerIndex;
}
TString SamplerString(const TType &type)
{
if (IsShadowSampler(type.getBasicType()))
{
return "SamplerComparisonState";
}
else
{
return "SamplerState";
}
}
void TOutputVulkanGLSL::writeVariableType(const TType &type, const TSymbol *symbol)
{
TType overrideType(type);
// External textures are treated as 2D textures in the vulkan back-end
if (type.getBasicType() == EbtSamplerExternalOES)
{
overrideType.setBasicType(EbtSampler2D);
}
TOutputGLSL::writeVariableType(overrideType, symbol);
}
// Recursively figure out how many locations are used up by an input or output type.
// Return the size of type, as measured by "locations".
int TIntermediate::computeTypeLocationSize(const TType& type) const
{
// "If the declared input is an array of size n and each element takes m locations, it will be assigned m * n
// consecutive locations..."
if (type.isArray()) {
// TODO: perf: this can be flattened by using getCumulativeArraySize(), and a deref that discards all arrayness
TType elementType(type, 0);
if (type.isImplicitlySizedArray()) {
// TODO: are there valid cases of having an implicitly-sized array with a location? If so, running this code too early.
return computeTypeLocationSize(elementType);
} else
return type.getOuterArraySize() * computeTypeLocationSize(elementType);
}
// "The locations consumed by block and structure members are determined by applying the rules above
// recursively..."
if (type.isStruct()) {
int size = 0;
for (int member = 0; member < (int)type.getStruct()->size(); ++member) {
TType memberType(type, member);
size += computeTypeLocationSize(memberType);
}
return size;
}
// ES: "If a shader input is any scalar or vector type, it will consume a single location."
// Desktop: "If a vertex shader input is any scalar or vector type, it will consume a single location. If a non-vertex
// shader input is a scalar or vector type other than dvec3 or dvec4, it will consume a single location, while
// types dvec3 or dvec4 will consume two consecutive locations. Inputs of type double and dvec2 will
// consume only a single location, in all stages."
if (type.isScalar())
return 1;
if (type.isVector()) {
if (language == EShLangVertex && type.getQualifier().isPipeInput())
return 1;
if (type.getBasicType() == EbtDouble && type.getVectorSize() > 2)
return 2;
else
return 1;
}
// "If the declared input is an n x m single- or double-precision matrix, ...
// The number of locations assigned for each matrix will be the same as
// for an n-element array of m-component vectors..."
if (type.isMatrix()) {
TType columnType(type, 0);
return type.getMatrixCols() * computeTypeLocationSize(columnType);
}
assert(0);
return 1;
}
void TOutputGLSLBase::writeVariableType(const TType &type)
{
TInfoSinkBase &out = objSink();
if (type.isInvariant())
{
out << "invariant ";
}
TQualifier qualifier = type.getQualifier();
if (qualifier != EvqTemporary && qualifier != EvqGlobal)
{
if (IsGLSL130OrNewer(mOutput))
{
switch (qualifier)
{
case EvqAttribute:
out << "in ";
break;
case EvqVaryingIn:
out << "in ";
break;
case EvqVaryingOut:
out << "out ";
break;
default:
out << type.getQualifierString() << " ";
break;
}
}
else
{
out << type.getQualifierString() << " ";
}
}
// Declare the struct if we have not done so already.
if (type.getBasicType() == EbtStruct && !structDeclared(type.getStruct()))
{
TStructure *structure = type.getStruct();
declareStruct(structure);
if (!structure->name().empty())
{
mDeclaredStructs.insert(structure->uniqueId());
}
}
else
{
if (writeVariablePrecision(type.getPrecision()))
out << " ";
out << getTypeName(type);
}
}
GLenum GLVariablePrecision(const TType &type)
{
if (type.getBasicType() == EbtFloat)
{
switch (type.getPrecision())
{
case EbpHigh:
return GL_HIGH_FLOAT;
case EbpMedium:
return GL_MEDIUM_FLOAT;
case EbpLow:
return GL_LOW_FLOAT;
case EbpUndefined:
// Should be defined as the default precision by the parser
default:
UNREACHABLE();
}
}
else if (type.getBasicType() == EbtInt || type.getBasicType() == EbtUInt)
{
switch (type.getPrecision())
{
case EbpHigh:
return GL_HIGH_INT;
case EbpMedium:
return GL_MEDIUM_INT;
case EbpLow:
return GL_LOW_INT;
case EbpUndefined:
// Should be defined as the default precision by the parser
default:
UNREACHABLE();
}
}
// Other types (boolean, sampler) don't have a precision
return GL_NONE;
}
TString ScalarizeVecAndMatConstructorArgs::createTempVariable(TIntermTyped *original)
{
TString tempVarName = "_webgl_tmp_";
if (original->isScalar())
{
tempVarName += "scalar_";
}
else if (original->isVector())
{
tempVarName += "vec_";
}
else
{
ASSERT(original->isMatrix());
tempVarName += "mat_";
}
tempVarName += Str(mTempVarCount).c_str();
mTempVarCount++;
ASSERT(original);
TType type = original->getType();
type.setQualifier(EvqTemporary);
if (mShaderType == GL_FRAGMENT_SHADER &&
type.getBasicType() == EbtFloat &&
type.getPrecision() == EbpUndefined)
{
// We use the highest available precision for the temporary variable
// to avoid computing the actual precision using the rules defined
// in GLSL ES 1.0 Section 4.5.2.
type.setPrecision(mFragmentPrecisionHigh ? EbpHigh : EbpMedium);
}
TIntermBinary *init = new TIntermBinary(EOpInitialize);
TIntermSymbol *symbolNode = new TIntermSymbol(-1, tempVarName, type);
init->setLeft(symbolNode);
init->setRight(original);
init->setType(type);
TIntermAggregate *decl = new TIntermAggregate(EOpDeclaration);
decl->getSequence()->push_back(init);
ASSERT(mSequenceStack.size() > 0);
TIntermSequence &sequence = mSequenceStack.back();
sequence.push_back(decl);
return tempVarName;
}
unsigned int UniformHLSL::assignSamplerInStructUniformRegister(const TType &type,
const TString &name,
unsigned int *outRegisterCount)
{
// Sampler that is a field of a uniform structure.
ASSERT(IsSampler(type.getBasicType()));
unsigned int registerIndex = mSamplerRegister;
mUniformRegisterMap[std::string(name.c_str())] = registerIndex;
unsigned int registerCount = type.isArray() ? type.getArraySize() : 1u;
mSamplerRegister += registerCount;
if (outRegisterCount)
{
*outRegisterCount = registerCount;
}
return registerIndex;
}
TString Std140PaddingHelper::postPaddingString(const TType &type, bool useHLSLRowMajorPacking)
{
if (!type.isMatrix() && !type.isArray() && type.getBasicType() != EbtStruct)
{
return "";
}
int numComponents = 0;
TStructure *structure = type.getStruct();
if (type.isMatrix())
{
// This method can also be called from structureString, which does not use layout qualifiers.
// Thus, use the method parameter for determining the matrix packing.
//
// Note HLSL row major packing corresponds to GL API column-major, and vice-versa, since we
// wish to always transpose GL matrices to play well with HLSL's matrix array indexing.
//
const bool isRowMajorMatrix = !useHLSLRowMajorPacking;
const GLenum glType = GLVariableType(type);
numComponents = gl::MatrixComponentCount(glType, isRowMajorMatrix);
}
else if (structure)
{
const TString &structName = QualifiedStructNameString(*structure,
useHLSLRowMajorPacking, true);
numComponents = mStructElementIndexes->find(structName)->second;
if (numComponents == 0)
{
return "";
}
}
else
{
const GLenum glType = GLVariableType(type);
numComponents = gl::VariableComponentCount(glType);
}
TString padding;
for (int paddingOffset = numComponents; paddingOffset < 4; paddingOffset++)
{
padding += " float pad_" + next() + ";\n";
}
return padding;
}
void OutputParameter(TIntermParameter* node, TIntermTraverser* it)
{
TOutputTraverser* oit = static_cast<TOutputTraverser*>(it);
TInfoSink& out = oit->infoSink;
OutputExtensionText(out, node);
OutputTreeText(out, node, oit->depth);
TType* t = node->getType();
if (t->getBasicType() != EbtStruct) {
out.debug << "param '" << t->getFieldName() << "' (" <<
t->getCompleteString() << ")\n";
} else {
out.debug << "param '" << t->getFieldName() << "' (" <<
t->getCompleteString() << " '" <<
t->getTypeName() << "')\n";
}
}
void TOutputGLSLBase::writeVariableType(const TType& type)
{
TInfoSinkBase& out = objSink();
TQualifier qualifier = type.getQualifier();
// TODO(alokp): Validate qualifier for variable declarations.
if ((qualifier != EvqTemporary) && (qualifier != EvqGlobal))
out << type.getQualifierString() << " ";
// Declare the struct if we have not done so already.
if ((type.getBasicType() == EbtStruct) && !structDeclared(type.getStruct()))
{
declareStruct(type.getStruct());
}
else
{
if (writeVariablePrecision(type.getPrecision()))
out << " ";
out << getTypeName(type);
}
}
bool TParseContext::structNestingErrorCheck(TSourceLoc line, const TType& fieldType)
{
if (shaderSpec != SH_WEBGL_SPEC) {
return false;
}
if (fieldType.getBasicType() != EbtStruct) {
return false;
}
// We're already inside a structure definition at this point, so add
// one to the field's struct nesting.
if (1 + fieldType.getDeepestStructNesting() > kWebGLMaxStructNesting) {
error(line, "", "", "Reference of struct type %s exceeds maximum struct nesting of %d",
fieldType.getTypeName().c_str(), kWebGLMaxStructNesting);
return true;
}
return false;
}
// TODO(jmadill): This is not complete.
void TOutputVulkanGLSL::writeLayoutQualifier(const TType &type)
{
TInfoSinkBase &out = objSink();
const TLayoutQualifier &layoutQualifier = type.getLayoutQualifier();
out << "layout(";
if (type.getQualifier() == EvqAttribute || type.getQualifier() == EvqFragmentOut ||
type.getQualifier() == EvqVertexIn)
{
// TODO(jmadill): Multiple output locations.
out << "location = "
<< "0";
}
if (IsImage(type.getBasicType()) && layoutQualifier.imageInternalFormat != EiifUnspecified)
{
ASSERT(type.getQualifier() == EvqTemporary || type.getQualifier() == EvqUniform);
out << getImageInternalFormatString(layoutQualifier.imageInternalFormat);
}
out << ") ";
}
bool TParseContext::structNestingErrorCheck(TSourceLoc line, const TType& fieldType)
{
if (!isWebGLBasedSpec(shaderSpec)) {
return false;
}
if (fieldType.getBasicType() != EbtStruct) {
return false;
}
// We're already inside a structure definition at this point, so add
// one to the field's struct nesting.
if (1 + fieldType.getDeepestStructNesting() > kWebGLMaxStructNesting) {
std::stringstream extraInfoStream;
extraInfoStream << "Reference of struct type " << fieldType.getTypeName()
<< " exceeds maximum struct nesting of " << kWebGLMaxStructNesting;
std::string extraInfo = extraInfoStream.str();
error(line, "", "", extraInfo.c_str());
return true;
}
return false;
}
int Std140PaddingHelper::prePadding(const TType &type)
{
if (type.getBasicType() == EbtStruct || type.isMatrix() || type.isArray())
{
// no padding needed, HLSL will align the field to a new register
mElementIndex = 0;
return 0;
}
const GLenum glType = GLVariableType(type);
const int numComponents = gl::VariableComponentCount(glType);
if (numComponents >= 4)
{
// no padding needed, HLSL will align the field to a new register
mElementIndex = 0;
return 0;
}
if (mElementIndex + numComponents > 4)
{
// no padding needed, HLSL will align the field to a new register
mElementIndex = numComponents;
return 0;
}
const int alignment = numComponents == 3 ? 4 : numComponents;
const int paddingOffset = (mElementIndex % alignment);
const int paddingCount = (paddingOffset != 0 ? (alignment - paddingOffset) : 0);
mElementIndex += paddingCount;
mElementIndex += numComponents;
mElementIndex %= 4;
return paddingCount;
}
GLenum GLVariableType(const TType &type)
{
if (type.getBasicType() == EbtFloat)
{
if (type.isScalar())
{
return GL_FLOAT;
}
else if (type.isVector())
{
switch (type.getNominalSize())
{
case 2: return GL_FLOAT_VEC2;
case 3: return GL_FLOAT_VEC3;
case 4: return GL_FLOAT_VEC4;
default: UNREACHABLE();
}
}
else if (type.isMatrix())
{
switch (type.getCols())
{
case 2:
switch (type.getRows())
{
case 2: return GL_FLOAT_MAT2;
case 3: return GL_FLOAT_MAT2x3;
case 4: return GL_FLOAT_MAT2x4;
default: UNREACHABLE();
}
case 3:
switch (type.getRows())
{
case 2: return GL_FLOAT_MAT3x2;
case 3: return GL_FLOAT_MAT3;
case 4: return GL_FLOAT_MAT3x4;
default: UNREACHABLE();
}
case 4:
switch (type.getRows())
{
case 2: return GL_FLOAT_MAT4x2;
case 3: return GL_FLOAT_MAT4x3;
case 4: return GL_FLOAT_MAT4;
default: UNREACHABLE();
}
default: UNREACHABLE();
}
}
else UNREACHABLE();
}
else if (type.getBasicType() == EbtInt)
{
if (type.isScalar())
{
return GL_INT;
}
else if (type.isVector())
{
switch (type.getNominalSize())
{
case 2: return GL_INT_VEC2;
case 3: return GL_INT_VEC3;
case 4: return GL_INT_VEC4;
default: UNREACHABLE();
}
}
else UNREACHABLE();
}
else if (type.getBasicType() == EbtUInt)
{
if (type.isScalar())
{
return GL_UNSIGNED_INT;
}
else if (type.isVector())
{
switch (type.getNominalSize())
{
case 2: return GL_UNSIGNED_INT_VEC2;
case 3: return GL_UNSIGNED_INT_VEC3;
case 4: return GL_UNSIGNED_INT_VEC4;
default: UNREACHABLE();
}
}
else UNREACHABLE();
}
else if (type.getBasicType() == EbtBool)
{
if (type.isScalar())
{
return GL_BOOL;
}
else if (type.isVector())
{
switch (type.getNominalSize())
{
case 2: return GL_BOOL_VEC2;
case 3: return GL_BOOL_VEC3;
case 4: return GL_BOOL_VEC4;
default: UNREACHABLE();
}
}
else UNREACHABLE();
}
switch (type.getBasicType())
{
case EbtSampler2D: return GL_SAMPLER_2D;
case EbtSampler3D: return GL_SAMPLER_3D;
case EbtSamplerCube: return GL_SAMPLER_CUBE;
case EbtSamplerExternalOES: return GL_SAMPLER_EXTERNAL_OES;
case EbtSampler2DRect: return GL_SAMPLER_2D_RECT_ARB;
case EbtSampler2DArray: return GL_SAMPLER_2D_ARRAY;
case EbtISampler2D: return GL_INT_SAMPLER_2D;
case EbtISampler3D: return GL_INT_SAMPLER_3D;
case EbtISamplerCube: return GL_INT_SAMPLER_CUBE;
case EbtISampler2DArray: return GL_INT_SAMPLER_2D_ARRAY;
case EbtUSampler2D: return GL_UNSIGNED_INT_SAMPLER_2D;
case EbtUSampler3D: return GL_UNSIGNED_INT_SAMPLER_3D;
case EbtUSamplerCube: return GL_UNSIGNED_INT_SAMPLER_CUBE;
case EbtUSampler2DArray: return GL_UNSIGNED_INT_SAMPLER_2D_ARRAY;
case EbtSampler2DShadow: return GL_SAMPLER_2D_SHADOW;
case EbtSamplerCubeShadow: return GL_SAMPLER_CUBE_SHADOW;
case EbtSampler2DArrayShadow: return GL_SAMPLER_2D_ARRAY_SHADOW;
default: UNREACHABLE();
}
return GL_NONE;
}
