namespace GL {
class Program;
+class Resources;
class ProgramCompiler
{
-public:
- struct Formatter: ProgramSyntax::NodeVisitor
+private:
+ struct Visitor: ProgramSyntax::TraversingVisitor
+ {
+ typedef void ResultType;
+
+ ProgramSyntax::Stage *stage;
+
+ Visitor();
+
+ virtual void apply(ProgramSyntax::Stage &);
+ void get_result() const { }
+ };
+
+ 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();
+ const std::string &get_result() const { return formatted; }
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::Layout &);
virtual void visit(ProgramSyntax::StructDeclaration &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
virtual void visit(ProgramSyntax::Return &);
};
-private:
- struct VariableResolver: ProgramSyntax::TraversingVisitor
+ template<typename T>
+ struct NodeGatherer: Visitor
+ {
+ typedef std::list<T *> ResultType;
+
+ std::list<T *> nodes;
+
+ const ResultType &get_result() const { return nodes; }
+ virtual void visit(T &n) { nodes.push_back(&n); }
+ };
+
+ struct DeclarationCombiner: Visitor
+ {
+ bool toplevel;
+ std::map<std::string, std::vector<ProgramSyntax::FunctionDeclaration *> > functions;
+ std::map<std::string, ProgramSyntax::VariableDeclaration *> variables;
+ bool remove_node;
+
+ DeclarationCombiner();
+
+ virtual void visit(ProgramSyntax::Block &);
+ virtual void visit(ProgramSyntax::FunctionDeclaration &);
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
+ };
+
+ struct VariableResolver: Visitor
{
std::vector<ProgramSyntax::Block *> blocks;
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 &);
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: ProgramSyntax::TraversingVisitor
+ struct InterfaceGenerator: Visitor
{
- ProgramSyntax::Context *context;
std::string in_prefix;
std::string out_prefix;
unsigned scope_level;
- std::map<std::string, ProgramSyntax::NodePtr<ProgramSyntax::Node> > iface_declarations;
+ std::map<std::string, ProgramSyntax::VariableDeclaration *> iface_declarations;
bool remove_node;
- std::list<ProgramSyntax::NodePtr<ProgramSyntax::Node> > insert_nodes;
+ std::list<ProgramSyntax::Node *> insert_nodes;
InterfaceGenerator();
- static std::string get_out_prefix(ProgramSyntax::ContextType);
- void visit(ProgramSyntax::Context &);
+ static std::string get_out_prefix(ProgramSyntax::StageType);
+ virtual void apply(ProgramSyntax::Stage &);
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: ProgramSyntax::TraversingVisitor
+ struct VariableRenamer: Visitor
{
virtual void visit(ProgramSyntax::VariableReference &);
virtual void visit(ProgramSyntax::VariableDeclaration &);
};
- struct UnusedVariableLocator: ProgramSyntax::TraversingVisitor
+ 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 &);
+
+ virtual void visit(ProgramSyntax::Literal &);
+ virtual void visit(ProgramSyntax::VariableReference &);
+ virtual void visit(ProgramSyntax::UnaryExpression &);
+ virtual void visit(ProgramSyntax::BinaryExpression &);
+ };
+
+ struct ConstantConditionEliminator: Visitor
{
- std::set<ProgramSyntax::VariableDeclaration *> unused_variables;
+ unsigned scope_level;
+ ExpressionEvaluator::ValueMap variable_values;
+ bool remove_node;
+ ProgramSyntax::Block *replacement_block;
+ ConstantConditionEliminator();
+
+ 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 AssignmentList
+ {
+ std::vector<ProgramSyntax::Node *> nodes;
+ bool conditional;
+ bool self_referencing;
+ };
+
+ typedef std::set<ProgramSyntax::Node *> ResultType;
+ typedef std::map<ProgramSyntax::VariableDeclaration *, AssignmentList> BlockAssignmentMap;
+
+ std::set<ProgramSyntax::Node *> unused_nodes;
+ std::map<ProgramSyntax::VariableDeclaration *, ProgramSyntax::Node *> aggregates;
+ ProgramSyntax::Node *aggregate;
+ std::vector<BlockAssignmentMap> assignments;
+ ProgramSyntax::Assignment *assignment;
+ bool assignment_target;
+
+ UnusedVariableLocator();
+
+ virtual void apply(ProgramSyntax::Stage &);
+ const ResultType &get_result() const { return unused_nodes; }
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);
+ 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_assignments();
+ virtual void visit(ProgramSyntax::Conditional &);
+ virtual void visit(ProgramSyntax::Iteration &);
};
- struct NodeRemover: ProgramSyntax::TraversingVisitor
+ struct NodeRemover: Visitor
{
std::set<ProgramSyntax::Node *> to_remove;
- unsigned n_removed;
- bool immutable_block;
- bool remove_block;
- NodeRemover();
+ NodeRemover() { }
+ NodeRemover(const std::set<ProgramSyntax::Node *> &);
virtual void visit(ProgramSyntax::Block &);
- virtual void visit(ProgramSyntax::StructDeclaration &);
- virtual void visit(ProgramSyntax::InterfaceBlock &);
+ virtual void visit(ProgramSyntax::VariableDeclaration &);
};
+ Resources *resources;
ProgramParser parser;
ProgramSyntax::Module *module;
ProgramCompiler();
void compile(const std::string &);
- void compile(IO::Base &);
+ void compile(IO::Base &, Resources * = 0);
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 process();
- void process(ProgramSyntax::Context &);
+ void import(const std::string &);
+ void generate(ProgramSyntax::Stage &);
+ bool optimize(ProgramSyntax::Stage &);
static void inject_block(ProgramSyntax::Block &, const ProgramSyntax::Block &);
- static void resolve_variables(ProgramSyntax::Context &);
- std::string format_context(ProgramSyntax::Context &);
+ template<typename T>
+ 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