Automatically backport shaders to earlier GLSL versions if necessary

[libs/gl.git] / source / programcompiler.h

diff --git a/source/programcompiler.h b/source/programcompiler.h
index 96fee471cc7e5351a59e7d51f9b3772862bcc195..8ae22901e89dcbfb19bf08fc2a25929aaddf9188 100644 (file)
--- a/source/programcompiler.h
+++ b/source/programcompiler.h
@@ -38,6 +38,7 @@ private:
 
                Formatter();
 
+               virtual void apply(ProgramSyntax::Stage &);
                const std::string &get_result() const { return formatted; }
                virtual void visit(ProgramSyntax::Block &);
                virtual void visit(ProgramSyntax::Literal &);
@@ -246,6 +247,22 @@ private:
                virtual void visit(ProgramSyntax::VariableDeclaration &);
        };
 
+       struct LegacyConverter: BlockModifier
+       {
+               Version target_version;
+               std::string type;
+               std::string frag_out_name;
+
+               LegacyConverter();
+               LegacyConverter(const Version &);
+
+               bool check_version(const Version &);
+               virtual void visit(ProgramSyntax::VariableReference &);
+               virtual void visit(ProgramSyntax::FunctionCall &);
+               virtual void visit(ProgramSyntax::VariableDeclaration &);
+               virtual void visit(ProgramSyntax::InterfaceBlock &);
+       };
+
        Resources *resources;
        ProgramParser parser;
        ProgramSyntax::Module *module;