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();
}
}
//
// 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();
}
//
// 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.
//
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());
}
//
// 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());
}
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();
}
}
//
// 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);
}
//
// 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,
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();
TInfoSink& infoSink = compiler->getInfoSink();
infoSink.info.erase();
infoSink.debug.erase();
infoSink.obj.erase();
if (numStrings == 0)
return 1;
TIntermediate intermediate(infoSink);
TSymbolTable& symbolTable = compiler->getSymbolTable();
TParseContext parseContext(symbolTable, intermediate, compiler->getLanguage(), compiler->getSpec(), 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");
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 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);
} else if (!parseContext.treeRoot) {
parseContext.error(1, "Unexpected end of file.", "", "");
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.atBuiltInLevel())
symbolTable.pop();
FinalizePreprocessor();
//
// Throw away all the temporary memory used by the compilation process.
//
GlobalPoolAllocator.pop();
return success ? 1 : 0;
}