//
// Driver calls these to create and destroy compiler objects.
//
ShHandle ConstructCompiler(sh::GLenum type,
ShShaderSpec spec,
ShShaderOutput output,
const ShBuiltInResources *resources)
{
TShHandleBase *base = static_cast<TShHandleBase *>(ConstructCompiler(type, spec, output));
if (base == nullptr)
{
return 0;
}
TCompiler *compiler = base->getAsCompiler();
if (compiler == nullptr)
{
return 0;
}
// Generate built-in symbol table.
if (!compiler->Init(*resources))
{
Destruct(base);
return 0;
}
return base;
}
const std::map<std::string, std::string> *ShGetNameHashingMap(
const ShHandle handle)
{
TCompiler *compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
return &(compiler->getNameMap());
}
//
// Return any compiler log of messages for the application.
//
const std::string &GetInfoLog(const ShHandle handle)
{
TCompiler *compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
TInfoSink &infoSink = compiler->getInfoSink();
return infoSink.info.str();
}
//
// Return any object code.
//
const std::string &ShGetObjectCode(const ShHandle handle)
{
TCompiler *compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
TInfoSink &infoSink = compiler->getInfoSink();
return infoSink.obj.str();
}
int GetVertexShaderNumViews(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
return compiler->getNumViews();
}
const std::vector<InterfaceBlock> *GetShaderStorageBlocks(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
return &compiler->getShaderStorageBlocks();
}
const std::vector<Varying> *GetOutputVaryings(const ShHandle handle)
{
TCompiler *compiler = GetCompilerFromHandle(handle);
if (compiler == nullptr)
{
return nullptr;
}
return &compiler->getOutputVaryings();
}
//
// Do an actual compile on the given strings. The result is left
// in the given compile object.
//
// Return: The return value of ShCompile is really boolean, indicating
// success or failure.
//
bool Compile(const ShHandle handle,
const char *const shaderStrings[],
size_t numStrings,
ShCompileOptions compileOptions)
{
TCompiler *compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
return compiler->compile(shaderStrings, numStrings, compileOptions);
}
int GetGeometryShaderInvocations(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
return compiler->getGeometryShaderInvocations();
}
GLenum GetGeometryShaderOutputPrimitiveType(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
return GetGeometryShaderPrimitiveTypeEnum(compiler->getGeometryShaderOutputPrimitiveType());
}
bool HasValidGeometryShaderMaxVertices(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
return compiler->getGeometryShaderMaxVertices() >= 0;
}
bool HasValidGeometryShaderOutputPrimitiveType(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
return compiler->getGeometryShaderOutputPrimitiveType() != EptUndefined;
}
WorkGroupSize GetComputeShaderLocalGroupSize(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
return compiler->getComputeShaderLocalSize();
}
//
// Return any compiler log of messages for the application.
//
void ShGetInfoLog(const ShHandle handle, char* infoLog)
{
if (!handle || !infoLog)
return;
TShHandleBase* base = static_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (!compiler) return;
TInfoSink& infoSink = compiler->getInfoSink();
strcpy(infoLog, infoSink.info.c_str());
}
//
// Return any object code.
//
void ShGetObjectCode(const ShHandle handle, char* objCode)
{
if (!handle || !objCode)
return;
TShHandleBase* base = static_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (!compiler) return;
TInfoSink& infoSink = compiler->getInfoSink();
strcpy(objCode, infoSink.obj.c_str());
}
int GetGeometryShaderMaxVertices(const ShHandle handle)
{
ASSERT(handle);
TShHandleBase *base = static_cast<TShHandleBase *>(handle);
TCompiler *compiler = base->getAsCompiler();
ASSERT(compiler);
int maxVertices = compiler->getGeometryShaderMaxVertices();
ASSERT(maxVertices >= 0);
return maxVertices;
}
void ShGetInfo(const ShHandle handle, ShShaderInfo pname, size_t* params)
{
if (!handle || !params)
return;
TShHandleBase* base = static_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (!compiler) return;
switch(pname)
{
case SH_INFO_LOG_LENGTH:
*params = compiler->getInfoSink().info.size() + 1;
break;
case SH_OBJECT_CODE_LENGTH:
*params = compiler->getInfoSink().obj.size() + 1;
break;
case SH_ACTIVE_UNIFORMS:
*params = compiler->getUniforms().size();
break;
case SH_ACTIVE_UNIFORM_MAX_LENGTH:
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
case SH_ACTIVE_ATTRIBUTES:
*params = compiler->getAttribs().size();
break;
case SH_ACTIVE_ATTRIBUTE_MAX_LENGTH:
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
case SH_VARYINGS:
*params = compiler->getVaryings().size();
break;
case SH_VARYING_MAX_LENGTH:
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
case SH_MAPPED_NAME_MAX_LENGTH:
// Use longer length than MAX_SHORTENED_IDENTIFIER_SIZE to
// handle array and struct dereferences.
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
case SH_NAME_MAX_LENGTH:
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
case SH_HASHED_NAME_MAX_LENGTH:
if (compiler->getHashFunction() == NULL) {
*params = 0;
} else {
// 64 bits hashing output requires 16 bytes for hex
// representation.
const char HashedNamePrefix[] = HASHED_NAME_PREFIX;
*params = 16 + sizeof(HashedNamePrefix);
}
break;
case SH_HASHED_NAMES_COUNT:
*params = compiler->getNameMap().size();
break;
default:
UNREACHABLE();
}
}
//
// Driver calls these to create and destroy compiler objects.
//
ShHandle ShConstructCompiler(ShShaderType type, ShShaderSpec spec,
ShShaderOutput output,
const ShBuiltInResources* resources)
{
TShHandleBase* base = static_cast<TShHandleBase*>(ConstructCompiler(type, spec, output));
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return 0;
// Generate built-in symbol table.
if (!compiler->Init(*resources)) {
ShDestruct(base);
return 0;
}
return reinterpret_cast<void*>(base);
}
//
// Do an actual compile on the given strings. The result is left
// in the given compile object.
//
// Return: The return value of ShCompile is really boolean, indicating
// success or failure.
//
int ShCompile(
const ShHandle handle,
const char* const shaderStrings[],
size_t numStrings,
int compileOptions)
{
if (handle == 0)
return 0;
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return 0;
bool success = compiler->compile(shaderStrings, numStrings, compileOptions);
return success ? 1 : 0;
}
static void getVariableInfo(ShShaderInfo varType,
const ShHandle handle,
int index,
size_t* length,
int* size,
ShDataType* type,
char* name,
char* mappedName)
{
if (!handle || !size || !type || !name)
return;
ASSERT((varType == SH_ACTIVE_ATTRIBUTES) ||
(varType == SH_ACTIVE_UNIFORMS));
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return;
const TVariableInfoList& varList = varType == SH_ACTIVE_ATTRIBUTES ?
compiler->getAttribs() : compiler->getUniforms();
if (index < 0 || index >= static_cast<int>(varList.size()))
return;
const TVariableInfo& varInfo = varList[index];
if (length) *length = varInfo.name.size();
*size = varInfo.size;
*type = varInfo.type;
// This size must match that queried by
// SH_ACTIVE_UNIFORM_MAX_LENGTH and SH_ACTIVE_ATTRIBUTE_MAX_LENGTH
// in ShGetInfo, below.
size_t activeUniformAndAttribLength = 1 + MAX_SYMBOL_NAME_LEN;
ASSERT(checkActiveUniformAndAttribMaxLengths(handle, activeUniformAndAttribLength));
strncpy(name, varInfo.name.c_str(), activeUniformAndAttribLength);
name[activeUniformAndAttribLength - 1] = 0;
if (mappedName) {
// This size must match that queried by
// SH_MAPPED_NAME_MAX_LENGTH in ShGetInfo, below.
size_t maxMappedNameLength = 1 + MAX_SYMBOL_NAME_LEN;
ASSERT(checkMappedNameMaxLength(handle, maxMappedNameLength));
strncpy(mappedName, varInfo.mappedName.c_str(), maxMappedNameLength);
mappedName[maxMappedNameLength - 1] = 0;
}
}
//
// Driver calls these to create and destroy compiler objects.
//
ShHandle ShConstructCompiler(EShLanguage language, EShSpec spec, const TBuiltInResource* resources)
{
if (!InitThread())
return 0;
TShHandleBase* base = static_cast<TShHandleBase*>(ConstructCompiler(language, spec));
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return 0;
// Generate built-in symbol table.
if (!GenerateBuiltInSymbolTable(language, spec, *resources, compiler->getInfoSink(), compiler->getSymbolTable())) {
ShDestruct(base);
return 0;
}
return reinterpret_cast<void*>(base);
}
void ShGetNameHashingEntry(const ShHandle handle,
int index,
char* name,
char* hashedName)
{
if (!handle || !name || !hashedName || index < 0)
return;
TShHandleBase* base = static_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (!compiler) return;
const NameMap& nameMap = compiler->getNameMap();
if (index >= static_cast<int>(nameMap.size()))
return;
NameMap::const_iterator it = nameMap.begin();
for (int i = 0; i < index; ++i)
++it;
size_t len = it->first.length() + 1;
size_t max_len = 0;
ShGetInfo(handle, SH_NAME_MAX_LENGTH, &max_len);
if (len > max_len) {
ASSERT(false);
len = max_len;
}
strncpy(name, it->first.c_str(), len);
// To be on the safe side in case the source is longer than expected.
name[len - 1] = '\0';
len = it->second.length() + 1;
max_len = 0;
ShGetInfo(handle, SH_HASHED_NAME_MAX_LENGTH, &max_len);
if (len > max_len) {
ASSERT(false);
len = max_len;
}
strncpy(hashedName, it->second.c_str(), len);
// To be on the safe side in case the source is longer than expected.
hashedName[len - 1] = '\0';
}
//
// Do a full compile on the given strings for a single compilation unit
// forming a complete stage. The result of the machine dependent compilation
// is left in the provided compile object.
//
// Return: The return value is really boolean, indicating
// success (1) or failure (0).
//
int ShCompile(
const ShHandle handle,
const char* const shaderStrings[],
const int numStrings,
const int* inputLengths,
const EShOptimizationLevel optLevel,
const TBuiltInResource* resources,
int /*debugOptions*/,
int defaultVersion, // use 100 for ES environment, 110 for desktop
bool forwardCompatible, // give errors for use of deprecated features
EShMessages messages // warnings/errors/AST; things to print out
)
{
// Map the generic handle to the C++ object
if (handle == 0)
return 0;
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return 0;
compiler->infoSink.info.erase();
compiler->infoSink.debug.erase();
TIntermediate intermediate(compiler->getLanguage());
bool success = CompileDeferred(compiler, shaderStrings, numStrings, inputLengths, "", optLevel, resources, defaultVersion, ENoProfile, false, forwardCompatible, messages, intermediate);
//
// Call the machine dependent compiler
//
if (success && intermediate.getTreeRoot() && optLevel != EShOptNoGeneration)
success = compiler->compile(intermediate.getTreeRoot(), intermediate.getVersion(), intermediate.getProfile());
intermediate.removeTree();
// Throw away all the temporary memory used by the compilation process.
// The push was done in the CompileDeferred() call above.
GetThreadPoolAllocator().pop();
return success ? 1 : 0;
}
void ShGetInfo(const ShHandle handle, ShShaderInfo pname, int* params)
{
if (!handle || !params)
return;
TShHandleBase* base = static_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (!compiler) return;
switch(pname)
{
case SH_INFO_LOG_LENGTH:
*params = compiler->getInfoSink().info.size() + 1;
break;
case SH_OBJECT_CODE_LENGTH:
*params = compiler->getInfoSink().obj.size() + 1;
break;
case SH_ACTIVE_UNIFORMS:
*params = compiler->getUniforms().size();
break;
case SH_ACTIVE_UNIFORM_MAX_LENGTH:
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
case SH_ACTIVE_ATTRIBUTES:
*params = compiler->getAttribs().size();
break;
case SH_ACTIVE_ATTRIBUTE_MAX_LENGTH:
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
case SH_MAPPED_NAME_MAX_LENGTH:
// Use longer length than MAX_SHORTENED_IDENTIFIER_SIZE to
// handle array and struct dereferences.
*params = 1 + MAX_SYMBOL_NAME_LEN;
break;
default:
UNREACHABLE();
}
}
void ShGetVariableInfo(const ShHandle handle,
ShShaderInfo varType,
int index,
size_t* length,
int* size,
ShDataType* type,
ShPrecisionType* precision,
int* staticUse,
char* name,
char* mappedName)
{
if (!handle || !size || !type || !precision || !staticUse || !name)
return;
ASSERT((varType == SH_ACTIVE_ATTRIBUTES) ||
(varType == SH_ACTIVE_UNIFORMS) ||
(varType == SH_VARYINGS));
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return;
const TVariableInfoList& varList =
varType == SH_ACTIVE_ATTRIBUTES ? compiler->getAttribs() :
(varType == SH_ACTIVE_UNIFORMS ? compiler->getUniforms() :
compiler->getVaryings());
if (index < 0 || index >= static_cast<int>(varList.size()))
return;
const TVariableInfo& varInfo = varList[index];
if (length) *length = varInfo.name.size();
*size = varInfo.size;
*type = varInfo.type;
switch (varInfo.precision) {
case EbpLow:
*precision = SH_PRECISION_LOWP;
break;
case EbpMedium:
*precision = SH_PRECISION_MEDIUMP;
break;
case EbpHigh:
*precision = SH_PRECISION_HIGHP;
break;
default:
// Some types does not support precision, for example, boolean.
*precision = SH_PRECISION_UNDEFINED;
break;
}
*staticUse = varInfo.staticUse ? 1 : 0;
// This size must match that queried by
// SH_ACTIVE_UNIFORM_MAX_LENGTH, SH_ACTIVE_ATTRIBUTE_MAX_LENGTH, SH_VARYING_MAX_LENGTH
// in ShGetInfo, below.
size_t variableLength = 1 + MAX_SYMBOL_NAME_LEN;
ASSERT(checkVariableMaxLengths(handle, variableLength));
strncpy(name, varInfo.name.c_str(), variableLength);
name[variableLength - 1] = 0;
if (mappedName) {
// This size must match that queried by
// SH_MAPPED_NAME_MAX_LENGTH in ShGetInfo, below.
size_t maxMappedNameLength = 1 + MAX_SYMBOL_NAME_LEN;
ASSERT(checkMappedNameMaxLength(handle, maxMappedNameLength));
strncpy(mappedName, varInfo.mappedName.c_str(), maxMappedNameLength);
mappedName[maxMappedNameLength - 1] = 0;
}
}
ShShaderOutput ShGetShaderOutputType(const ShHandle handle)
{
TCompiler* compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
return compiler->getOutputType();
}
int ShGetShaderVersion(const ShHandle handle)
{
TCompiler* compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
return compiler->getShaderVersion();
}
void ShClearResults(const ShHandle handle)
{
TCompiler *compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
compiler->clearResults();
}
const std::string &ShGetBuiltInResourcesString(const ShHandle handle)
{
TCompiler *compiler = GetCompilerFromHandle(handle);
ASSERT(compiler);
return compiler->getBuiltInResourcesString();
}
//
// Do an actual compile on the given strings. The result is left
// in the given compile object.
//
// Return: The return value of ShCompile is really boolean, indicating
// success or failure.
//
int ShCompile(
const ShHandle handle,
const char* const shaderStrings[],
const int numStrings,
const EShOptimizationLevel optLevel,
const TBuiltInResource* resources,
int debugOptions
)
{
if (!InitThread())
return 0;
if (handle == 0)
return 0;
TShHandleBase* base = reinterpret_cast<TShHandleBase*>(handle);
TCompiler* compiler = base->getAsCompiler();
if (compiler == 0)
return 0;
GlobalPoolAllocator.push();
compiler->infoSink.info.erase();
compiler->infoSink.debug.erase();
if (numStrings == 0)
return 1;
TIntermediate intermediate(compiler->infoSink);
TSymbolTable symbolTable(SymbolTables[compiler->getLanguage()]);
GenerateBuiltInSymbolTable(resources, compiler->infoSink, &symbolTable, compiler->getLanguage());
TParseContext parseContext(symbolTable, intermediate, compiler->getLanguage(), compiler->infoSink);
parseContext.initializeExtensionBehavior();
GlobalParseContext = &parseContext;
setInitialState();
InitPreprocessor();
//
// Parse the application's shaders. All the following symbol table
// work will be throw-away, so push a new allocation scope that can
// be thrown away, then push a scope for the current shader's globals.
//
bool success = true;
symbolTable.push();
if (!symbolTable.atGlobalLevel())
parseContext.infoSink.info.message(EPrefixInternalError, "Wrong symbol table level");
if (parseContext.insertBuiltInArrayAtGlobalLevel())
success = false;
int ret = PaParseStrings(const_cast<char**>(shaderStrings), 0, numStrings, parseContext);
if (ret)
success = false;
if (success && parseContext.treeRoot) {
if (optLevel == EShOptNoGeneration)
parseContext.infoSink.info.message(EPrefixNone, "No errors. No code generation or linking was requested.");
else {
success = intermediate.postProcess(parseContext.treeRoot, parseContext.language);
if (success) {
if (debugOptions & EDebugOpIntermediate)
intermediate.outputTree(parseContext.treeRoot);
//
// Call the machine dependent compiler
//
if (! compiler->compile(parseContext.treeRoot))
success = false;
}
}
} else if (!success) {
parseContext.infoSink.info.prefix(EPrefixError);
parseContext.infoSink.info << parseContext.numErrors << " compilation errors. No code generated.\n\n";
success = false;
if (debugOptions & EDebugOpIntermediate)
intermediate.outputTree(parseContext.treeRoot);
}
intermediate.remove(parseContext.treeRoot);
//
// Ensure symbol table is returned to the built-in level,
// throwing away all but the built-ins.
//
while (! symbolTable.atSharedBuiltInLevel())
symbolTable.pop();
FinalizePreprocessor();
//
// Throw away all the temporary memory used by the compilation process.
//
GlobalPoolAllocator.pop();
return success ? 1 : 0;
}