namespace GL {
class Program;
+class Resources;
class ProgramCompiler
{
private:
struct Visitor: ProgramSyntax::TraversingVisitor
{
+ typedef void ResultType;
+
ProgramSyntax::Stage *stage;
Visitor();
virtual void apply(ProgramSyntax::Stage &);
+ void get_result() const { }
+ };
+
+ struct BlockModifier: Visitor
+ {
+ bool remove_node;
+ std::vector<RefPtr<ProgramSyntax::Node> > insert_nodes;
+
+ BlockModifier();
+
+ void flatten_block(ProgramSyntax::Block &);
+ void apply_and_increment(ProgramSyntax::Block &, std::list<RefPtr<ProgramSyntax::Node> >::iterator &);
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Block &);
};
struct Formatter: Visitor
{
+ typedef std::string ResultType;
+
std::string formatted;
unsigned indent;
bool parameter_list;
- bool else_if;
+ unsigned else_if;
std::string block_interface;
Formatter();
+ virtual void apply(ProgramSyntax::Stage &);
+ const std::string &get_result() const { return formatted; }
+ using Visitor::visit;
virtual void visit(ProgramSyntax::Block &);
virtual void visit(ProgramSyntax::Literal &);
virtual void visit(ProgramSyntax::ParenthesizedExpression &);
virtual void visit(ProgramSyntax::MemberAccess &);
virtual void visit(ProgramSyntax::UnaryExpression &);
virtual void visit(ProgramSyntax::BinaryExpression &);
+ virtual void visit(ProgramSyntax::Assignment &);
virtual void visit(ProgramSyntax::FunctionCall &);
virtual void visit(ProgramSyntax::ExpressionStatement &);
+ virtual void visit(ProgramSyntax::Import &);
+ virtual void visit(ProgramSyntax::Precision &);
virtual void visit(ProgramSyntax::Layout &);
+ virtual void visit(ProgramSyntax::InterfaceLayout &);
virtual void visit(ProgramSyntax::StructDeclaration &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
virtual void visit(ProgramSyntax::InterfaceBlock &);
virtual void visit(ProgramSyntax::Conditional &);
virtual void visit(ProgramSyntax::Iteration &);
virtual void visit(ProgramSyntax::Return &);
+ virtual void visit(ProgramSyntax::Jump &);
+ };
+
+ template<typename T>
+ struct NodeGatherer: Visitor
+ {
+ typedef std::vector<T *> ResultType;
+
+ std::vector<T *> nodes;
+
+ const ResultType &get_result() const { return nodes; }
+ using Visitor::visit;
+ virtual void visit(T &n) { nodes.push_back(&n); }
+ };
+
+ struct DeclarationCombiner: BlockModifier
+ {
+ bool toplevel;
+ std::map<std::string, std::vector<ProgramSyntax::FunctionDeclaration *> > functions;
+ std::map<std::string, ProgramSyntax::VariableDeclaration *> variables;
+
+ DeclarationCombiner();
+
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Block &);
+ virtual void visit(ProgramSyntax::FunctionDeclaration &);
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
};
struct VariableResolver: Visitor
ProgramSyntax::StructDeclaration *type;
bool anonymous;
std::string block_interface;
+ bool record_target;
+ ProgramSyntax::VariableDeclaration *assignment_target;
+ bool self_referencing;
VariableResolver();
virtual void apply(ProgramSyntax::Stage &);
+ using Visitor::visit;
virtual void visit(ProgramSyntax::Block &);
virtual void visit(ProgramSyntax::VariableReference &);
virtual void visit(ProgramSyntax::MemberAccess &);
virtual void visit(ProgramSyntax::BinaryExpression &);
+ virtual void visit(ProgramSyntax::Assignment &);
virtual void visit(ProgramSyntax::StructDeclaration &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
virtual void visit(ProgramSyntax::InterfaceBlock &);
};
- struct InterfaceGenerator: Visitor
+ struct FunctionResolver: Visitor
+ {
+ std::map<std::string, std::vector<ProgramSyntax::FunctionDeclaration *> > functions;
+
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::FunctionCall &);
+ virtual void visit(ProgramSyntax::FunctionDeclaration &);
+ };
+
+ struct InterfaceGenerator: BlockModifier
{
std::string in_prefix;
std::string out_prefix;
unsigned scope_level;
- std::map<std::string, ProgramSyntax::VariableDeclaration *> iface_declarations;
- bool remove_node;
- std::list<ProgramSyntax::Node *> insert_nodes;
+ std::map<std::string, RefPtr<ProgramSyntax::VariableDeclaration> > iface_declarations;
InterfaceGenerator();
static std::string get_out_prefix(ProgramSyntax::StageType);
virtual void apply(ProgramSyntax::Stage &);
+ using Visitor::visit;
virtual void visit(ProgramSyntax::Block &);
std::string change_prefix(const std::string &, const std::string &) const;
bool generate_interface(ProgramSyntax::VariableDeclaration &, const std::string &, const std::string &);
virtual void visit(ProgramSyntax::Passthrough &);
};
- struct VariableRenamer: Visitor
+ struct DeclarationReorderer: Visitor
+ {
+ enum DeclarationKind
+ {
+ NO_DECLARATION,
+ LAYOUT,
+ STRUCT,
+ VARIABLE,
+ FUNCTION
+ };
+
+ unsigned scope_level;
+ DeclarationKind kind;
+ std::set<ProgramSyntax::Node *> ordered_funcs;
+ std::set<ProgramSyntax::Node *> needed_funcs;
+
+ DeclarationReorderer();
+
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Block &);
+ virtual void visit(ProgramSyntax::FunctionCall &);
+ virtual void visit(ProgramSyntax::InterfaceLayout &) { kind = LAYOUT; }
+ virtual void visit(ProgramSyntax::StructDeclaration &) { kind = STRUCT; }
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
+ virtual void visit(ProgramSyntax::InterfaceBlock &) { kind = VARIABLE; }
+ virtual void visit(ProgramSyntax::FunctionDeclaration &);
+ };
+
+ struct InlineableFunctionLocator: Visitor
+ {
+ typedef std::set<ProgramSyntax::FunctionDeclaration *> ResultType;
+
+ std::map<ProgramSyntax::FunctionDeclaration *, unsigned> refcounts;
+ std::set<ProgramSyntax::FunctionDeclaration *> inlineable;
+ ProgramSyntax::FunctionDeclaration *in_function;
+
+ InlineableFunctionLocator();
+
+ const ResultType &get_result() const { return inlineable; }
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::FunctionCall &);
+ virtual void visit(ProgramSyntax::FunctionDeclaration &);
+ };
+
+ struct FunctionInliner: Visitor
+ {
+ std::set<ProgramSyntax::FunctionDeclaration *> inlineable;
+ unsigned extract_result;
+ RefPtr<ProgramSyntax::Expression> inline_result;
+
+ FunctionInliner();
+ FunctionInliner(const std::set<ProgramSyntax::FunctionDeclaration *> &);
+
+ void visit_and_inline(RefPtr<ProgramSyntax::Expression> &);
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Block &);
+ virtual void visit(ProgramSyntax::UnaryExpression &);
+ virtual void visit(ProgramSyntax::BinaryExpression &);
+ virtual void visit(ProgramSyntax::FunctionCall &);
+ virtual void visit(ProgramSyntax::Return &);
+ };
+
+ struct ExpressionEvaluator: ProgramSyntax::NodeVisitor
{
+ typedef std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Expression *> ValueMap;
+
+ const ValueMap *variable_values;
+ float result;
+ bool result_valid;
+
+ ExpressionEvaluator();
+ ExpressionEvaluator(const ValueMap &);
+
+ using ProgramSyntax::NodeVisitor::visit;
+ virtual void visit(ProgramSyntax::Literal &);
+ virtual void visit(ProgramSyntax::ParenthesizedExpression &);
virtual void visit(ProgramSyntax::VariableReference &);
+ virtual void visit(ProgramSyntax::UnaryExpression &);
+ virtual void visit(ProgramSyntax::BinaryExpression &);
+ };
+
+ struct ConstantConditionEliminator: BlockModifier
+ {
+ unsigned scope_level;
+ ExpressionEvaluator::ValueMap variable_values;
+
+ ConstantConditionEliminator();
+
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Block &);
+ virtual void visit(ProgramSyntax::Assignment &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
+ virtual void visit(ProgramSyntax::Conditional &);
+ virtual void visit(ProgramSyntax::Iteration &);
};
struct UnusedVariableLocator: Visitor
{
+ struct VariableInfo
+ {
+ bool local;
+ std::vector<ProgramSyntax::Node *> assignments;
+ bool conditionally_assigned;
+ bool referenced;
+
+ VariableInfo();
+ };
+
+ typedef std::set<ProgramSyntax::Node *> ResultType;
+ typedef std::map<ProgramSyntax::VariableDeclaration *, VariableInfo> BlockVariableMap;
+
std::set<ProgramSyntax::Node *> unused_nodes;
std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> aggregates;
ProgramSyntax::Node *aggregate;
- std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> assignments;
- bool assignment;
- bool record_target;
- ProgramSyntax::VariableDeclaration *assignment_target;
- bool indeterminate_target;
- bool self_referencing;
+ std::vector<BlockVariableMap> variables;
+ ProgramSyntax::Assignment *assignment;
+ bool assignment_target;
+ bool global_scope;
UnusedVariableLocator();
+ virtual void apply(ProgramSyntax::Stage &);
+ const ResultType &get_result() const { return unused_nodes; }
+ using Visitor::visit;
virtual void visit(ProgramSyntax::VariableReference &);
virtual void visit(ProgramSyntax::MemberAccess &);
virtual void visit(ProgramSyntax::BinaryExpression &);
+ virtual void visit(ProgramSyntax::Assignment &);
+ void record_assignment(ProgramSyntax::VariableDeclaration &, ProgramSyntax::Node &, bool);
+ void clear_assignments(VariableInfo &, bool);
virtual void visit(ProgramSyntax::ExpressionStatement &);
virtual void visit(ProgramSyntax::StructDeclaration &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
virtual void visit(ProgramSyntax::InterfaceBlock &);
+ virtual void visit(ProgramSyntax::FunctionDeclaration &);
+ void merge_down_variables();
+ virtual void visit(ProgramSyntax::Conditional &);
+ virtual void visit(ProgramSyntax::Iteration &);
+ };
+
+ struct UnusedFunctionLocator: Visitor
+ {
+ typedef std::set<ProgramSyntax::Node *> ResultType;
+
+ std::set<ProgramSyntax::Node *> unused_nodes;
+ std::set<ProgramSyntax::FunctionDeclaration *> used_definitions;
+
+ const ResultType &get_result() const { return unused_nodes; }
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::FunctionCall &);
+ virtual void visit(ProgramSyntax::FunctionDeclaration &);
};
struct NodeRemover: Visitor
{
std::set<ProgramSyntax::Node *> to_remove;
+ NodeRemover() { }
+ NodeRemover(const std::set<ProgramSyntax::Node *> &);
+
+ using Visitor::visit;
virtual void visit(ProgramSyntax::Block &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
};
- ProgramParser parser;
+ struct PrecisionRemover: BlockModifier
+ {
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Precision &);
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
+ };
+
+ struct DefaultPrecisionGenerator: BlockModifier
+ {
+ bool toplevel;
+ std::set<std::string> have_default;
+
+ DefaultPrecisionGenerator();
+
+ using Visitor::visit;
+ virtual void visit(ProgramSyntax::Block &);
+ virtual void visit(ProgramSyntax::Precision &);
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
+ };
+
+ struct LegacyConverter: BlockModifier
+ {
+ GLApi target_api;
+ Version target_version;
+ std::string type;
+ ProgramSyntax::VariableDeclaration *frag_out;
+
+ LegacyConverter();
+ LegacyConverter(const Version &);
+
+ bool check_version(const Version &) const;
+ using Visitor::visit;
+ bool supports_unified_interface_syntax() const;
+ virtual void visit(ProgramSyntax::VariableReference &);
+ virtual void visit(ProgramSyntax::Assignment &);
+ bool supports_unified_sampling_functions() const;
+ virtual void visit(ProgramSyntax::FunctionCall &);
+ bool supports_interface_layouts() const;
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
+ bool supports_interface_blocks(const std::string &) const;
+ virtual void visit(ProgramSyntax::InterfaceBlock &);
+ };
+
+ Resources *resources;
ProgramSyntax::Module *module;
+ std::set<std::string> imported_names;
public:
ProgramCompiler();
+ ~ProgramCompiler();
- void compile(const std::string &);
- void compile(IO::Base &);
+ void compile(const std::string &, const std::string & = "<string>");
+ void compile(IO::Base &, Resources * = 0, const std::string & = "<file>");
+ void compile(IO::Base &, const std::string &);
void add_shaders(Program &);
private:
static ProgramSyntax::Module *create_builtins_module();
static ProgramSyntax::Module &get_builtins_module();
static ProgramSyntax::Stage *get_builtins(ProgramSyntax::StageType);
+ void append_module(ProgramSyntax::Module &);
+ void append_stage(ProgramSyntax::Stage &);
void process();
+ void import(const std::string &);
void generate(ProgramSyntax::Stage &);
bool optimize(ProgramSyntax::Stage &);
+ void finalize(ProgramSyntax::Stage &);
static void inject_block(ProgramSyntax::Block &, const ProgramSyntax::Block &);
template<typename T>
- static void apply(ProgramSyntax::Stage &);
- std::string create_source(ProgramSyntax::Stage &);
+ static typename T::ResultType apply(ProgramSyntax::Stage &);
+ template<typename T, typename A>
+ static typename T::ResultType apply(ProgramSyntax::Stage &, const A &);
};
} // namespace GL
projects / libs / gl.git / blobdiff