X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fprogrambuilder.h;h=0883f6a74fd07a6479dc1b01fa62424882455042;hb=4d7f66ea28c788e12f700216b9c53af9e71b8390;hp=821907d5dba46a281323c3364e1b85095426296e;hpb=cb2281586d0202dfe2c8c181afc9cbf1d250cf25;p=libs%2Fgl.git

diff --git a/source/programbuilder.h b/source/programbuilder.h
index 821907d5..0883f6a7 100644
--- a/source/programbuilder.h
+++ b/source/programbuilder.h
@@ -18,9 +18,15 @@ public:
 	virtual ~invalid_variable_definition() throw() { }
 };
 
+/**
+Generates shaders with common features.
+*/
 class ProgramBuilder
 {
 public:
+	/**
+	Describes the features of a standard shader program.
+	*/
 	struct StandardFeatures
 	{
 		class Loader: public DataFile::ObjectLoader<StandardFeatures>
@@ -32,6 +38,8 @@ public:
 		bool texture;
 		bool material;
 		bool lighting;
+		unsigned max_lights;
+		bool skylight;
 		bool specular;
 		bool normalmap;
 		bool shadow;
@@ -54,6 +62,15 @@ private:
 		FRAGMENT
 	};
 
+	enum InterfaceFlags
+	{
+		NO_INTERFACE = 0,
+		INPUT = 1,
+		OUTPUT = 2,
+		PASSTHROUGH = INPUT|OUTPUT,
+		GOAL = 4
+	};
+
 	struct VariableDefinition
 	{
 		VariableScope scope;
@@ -70,30 +87,37 @@ private:
 		std::string resolved_name;
 		bool fuzzy_space;
 		std::string resolved_space;
+		bool array_sum;
+		std::string array_subscript;
+		unsigned array_size;
 		std::list<ShaderVariable *> referenced_vars;
 		std::list<ShaderVariable *> referenced_by;
 		bool inlined;
 		bool inline_parens;
+		bool in_loop;
 
 		ShaderVariable(const std::string &);
 
 		void resolve(const VariableDefinition &);
 		void resolve(ShaderVariable &);
 		void resolve_space(const std::string &);
+		void resolve_array(const StandardFeatures &, unsigned = 0);
 		void add_reference(ShaderVariable &);
 		void update_reference(ShaderVariable &, ShaderVariable &);
 		void check_inline(bool, bool);
 		bool is_referenced_from(VariableScope) const;
-		std::string create_declaration(char = 0) const;
-		std::string create_replacement(VariableScope) const;
-		std::string create_expression() const;
+		InterfaceFlags get_interface_flags(VariableScope) const;
+		std::string create_declaration(char = 0, bool = false) const;
+		std::string create_replacement(VariableScope, const char * = 0) const;
+		std::string create_expression(const char * = 0) const;
 	};
 
-	enum MatchLevel
+	enum MatchType
 	{
 		NO_MATCH,
 		EXACT,
-		FUZZY
+		FUZZY,
+		ARRAY
 	};
 
 	StandardFeatures features;
@@ -102,6 +126,7 @@ private:
 	bool optimize;
 
 	static const VariableDefinition standard_variables[];
+	static const char interfaces[];
 
 public:
 	ProgramBuilder(const StandardFeatures &);
@@ -112,7 +137,7 @@ public:
 private:
 	std::string create_source(const std::list<ShaderVariable *> &, VariableScope) const;
 	bool evaluate_flags(const char *) const;
-	static MatchLevel name_match(const char *, const char *, const char ** = 0);
+	static MatchType name_match(const char *, const char *, const char ** = 0);
 	static bool parse_identifier(const char *, unsigned &, unsigned &);
 	static std::vector<std::string> extract_identifiers(const char *);
 	static std::string replace_identifiers(const char *, const std::map<std::string, std::string> &);