//
// 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);
}
int C_DECL Hlsl2Glsl_Initialize(GlobalAllocateFunction alloc, GlobalFreeFunction free, void* user)
{
TInfoSink infoSink;
bool ret = true;
SetGlobalAllocationAllocator(alloc, free, user);
if (!InitProcess())
return 0;
// This method should be called once per process. If its called by multiple threads, then
// we need to have thread synchronization code around the initialization of per process
// global pool allocator
if (!PerProcessGPA)
{
TPoolAllocator *builtInPoolAllocator = new TPoolAllocator(true);
builtInPoolAllocator->push();
TPoolAllocator* gPoolAllocator = &GlobalPoolAllocator;
SetGlobalPoolAllocatorPtr(builtInPoolAllocator);
TSymbolTable symTables[EShLangCount];
GenerateBuiltInSymbolTable(infoSink, symTables, EShLangCount);
PerProcessGPA = new TPoolAllocator(true);
PerProcessGPA->push();
SetGlobalPoolAllocatorPtr(PerProcessGPA);
SymbolTables[EShLangVertex].copyTable(symTables[EShLangVertex]);
SymbolTables[EShLangFragment].copyTable(symTables[EShLangFragment]);
SetGlobalPoolAllocatorPtr(gPoolAllocator);
symTables[EShLangVertex].pop();
symTables[EShLangFragment].pop();
initializeHLSLSupportLibrary();
builtInPoolAllocator->popAll();
delete builtInPoolAllocator;
}
return ret ? 1 : 0;
}
//
// Driver must call this first, once, before doing any other
// compiler/linker operations.
//
int ShInitialize()
{
TInfoSink infoSink;
bool ret = true;
if (!InitProcess())
return 0;
// This method should be called once per process. If its called by multiple threads, then
// we need to have thread synchronization code around the initialization of per process
// global pool allocator
if (!PerProcessGPA) {
TPoolAllocator *builtInPoolAllocator = new TPoolAllocator(true);
builtInPoolAllocator->push();
TPoolAllocator* gPoolAllocator = &GlobalPoolAllocator;
SetGlobalPoolAllocatorPtr(builtInPoolAllocator);
TSymbolTable symTables[EShLangCount];
GenerateBuiltInSymbolTable(0, infoSink, symTables);
PerProcessGPA = new TPoolAllocator(true);
PerProcessGPA->push();
SetGlobalPoolAllocatorPtr(PerProcessGPA);
SymbolTables[EShLangVertex].copyTable(symTables[EShLangVertex]);
SymbolTables[EShLangFragment].copyTable(symTables[EShLangFragment]);
SetGlobalPoolAllocatorPtr(gPoolAllocator);
symTables[EShLangVertex].pop();
symTables[EShLangFragment].pop();
builtInPoolAllocator->popAll();
delete builtInPoolAllocator;
}
return ret ? 1 : 0;
}
int C_DECL Hlsl2Glsl_Initialize()
{
TInfoSink infoSink;
if (!InitProcess())
return 0;
if (!PerProcessGPA)
{
TPoolAllocator *builtInPoolAllocator = new TPoolAllocator();
builtInPoolAllocator->push();
TPoolAllocator* gPoolAllocator = &GlobalPoolAllocator;
SetGlobalPoolAllocatorPtr(builtInPoolAllocator);
TSymbolTable symTables[EShLangCount];
GenerateBuiltInSymbolTable(infoSink, symTables, EShLangCount);
PerProcessGPA = new TPoolAllocator();
PerProcessGPA->push();
SetGlobalPoolAllocatorPtr(PerProcessGPA);
SymbolTables[EShLangVertex].copyTable(symTables[EShLangVertex]);
SymbolTables[EShLangFragment].copyTable(symTables[EShLangFragment]);
SetGlobalPoolAllocatorPtr(gPoolAllocator);
symTables[EShLangVertex].pop();
symTables[EShLangFragment].pop();
builtInPoolAllocator->popAll();
delete builtInPoolAllocator;
}
return 1;
}
//
// 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;
}
int C_DECL Hlsl2Glsl_Parse(
const ShHandle handle,
const char* shaderString,
ETargetVersion targetVersion,
Hlsl2Glsl_ParseCallbacks* callbacks,
unsigned options)
{
if (!InitThread())
return 0;
if (handle == 0)
return 0;
HlslCrossCompiler* compiler = handle;
GlobalPoolAllocator.push();
compiler->infoSink.info.erase();
compiler->infoSink.debug.erase();
if (!shaderString)
return 1;
TSymbolTable symbolTable(SymbolTables[compiler->getLanguage()]);
GenerateBuiltInSymbolTable(compiler->infoSink, &symbolTable, compiler->getLanguage());
TParseContext parseContext(symbolTable, compiler->getLanguage(), targetVersion, options, compiler->infoSink);
GlobalParseContext = &parseContext;
setInitialState();
//
// 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 = PaParseString(const_cast<char*>(shaderString), parseContext, callbacks);
if (ret)
success = false;
if (success && parseContext.treeRoot)
{
TIntermAggregate* aggRoot = parseContext.treeRoot->getAsAggregate();
if (aggRoot && aggRoot->getOp() == EOpNull)
aggRoot->setOperator(EOpSequence);
if (options & ETranslateOpIntermediate)
ir_output_tree(parseContext.treeRoot, parseContext.infoSink);
compiler->TransformAST (parseContext.treeRoot);
compiler->ProduceGLSL (parseContext.treeRoot, targetVersion, options);
}
else if (!success)
{
// only add "X compilation errors" message if somehow there are no other errors whatsoever, yet
// we still failed. for some reason.
if (parseContext.infoSink.info.IsEmpty())
{
parseContext.infoSink.info.prefix(EPrefixError);
parseContext.infoSink.info << parseContext.numErrors << " compilation errors. No code generated.\n\n";
}
success = false;
if (options & ETranslateOpIntermediate)
ir_output_tree(parseContext.treeRoot, parseContext.infoSink);
}
ir_remove_tree(parseContext.treeRoot);
//
// Ensure symbol table is returned to the built-in level,
// throwing away all but the built-ins.
//
while (! symbolTable.atSharedBuiltInLevel())
symbolTable.pop();
//
// Throw away all the temporary memory used by the compilation process.
//
GlobalPoolAllocator.pop();
return success ? 1 : 0;
}
int C_DECL Hlsl2Glsl_Parse( const ShHandle handle,
const char* shaderString,
int options )
{
if (!InitThread())
return 0;
if (handle == 0)
return 0;
HlslCrossCompiler* compiler = handle;
GlobalPoolAllocator.push();
compiler->infoSink.info.erase();
compiler->infoSink.debug.erase();
if (!shaderString)
return 1;
TIntermediate intermediate(compiler->infoSink);
TSymbolTable symbolTable(SymbolTables[compiler->getLanguage()]);
GenerateBuiltInSymbolTable(compiler->infoSink, &symbolTable, compiler->getLanguage());
TParseContext parseContext(symbolTable, intermediate, compiler->getLanguage(), compiler->infoSink);
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 = PaParseString(const_cast<char*>(shaderString), parseContext);
if (ret)
success = false;
if (success && parseContext.treeRoot)
{
TIntermAggregate* aggRoot = parseContext.treeRoot->getAsAggregate();
if (aggRoot && aggRoot->getOp() == EOpNull)
aggRoot->setOperator(EOpSequence);
if (options & ETranslateOpIntermediate)
intermediate.outputTree(parseContext.treeRoot);
compiler->TransformAST (parseContext.treeRoot);
compiler->ProduceGLSL (parseContext.treeRoot, (options & ETranslateOpUsePrecision) ? true : false);
}
else if (!success)
{
parseContext.infoSink.info.prefix(EPrefixError);
parseContext.infoSink.info << parseContext.numErrors << " compilation errors. No code generated.\n\n";
success = false;
if (options & ETranslateOpIntermediate)
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;
}
