Rename ProgramSyntax::Context to Stage

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

diff --git a/source/programcompiler.cpp b/source/programcompiler.cpp
index ecdcd519f69c1cdb4410ee377b0073e9772028ea..2dae07c8f4d3ecc049c153e66de8793d347e3134 100644 (file)
--- a/source/programcompiler.cpp
+++ b/source/programcompiler.cpp
@@ -35,12 +35,12 @@ void ProgramCompiler::add_shaders(Program &program)
                throw invalid_operation("ProgramCompiler::add_shaders");
 
        string head = "#version 150\n";
-       if(module->vertex_context.present)
-               program.attach_shader_owned(new VertexShader(head+format_context(module->vertex_context)));
-       if(module->geometry_context.present)
-               program.attach_shader_owned(new GeometryShader(head+format_context(module->geometry_context)));
-       if(module->fragment_context.present)
-               program.attach_shader_owned(new FragmentShader(head+format_context(module->fragment_context)));
+       if(module->vertex_stage.present)
+               program.attach_shader_owned(new VertexShader(head+format_stage(module->vertex_stage)));
+       if(module->geometry_stage.present)
+               program.attach_shader_owned(new GeometryShader(head+format_stage(module->geometry_stage)));
+       if(module->fragment_stage.present)
+               program.attach_shader_owned(new FragmentShader(head+format_stage(module->fragment_stage)));
 
        program.bind_attribute(VERTEX4, "vertex");
        program.bind_attribute(NORMAL3, "normal");
@@ -50,46 +50,46 @@ void ProgramCompiler::add_shaders(Program &program)
 
 void ProgramCompiler::process()
 {
-       if(module->vertex_context.present)
-               generate(module->vertex_context);
-       if(module->geometry_context.present)
-               generate(module->geometry_context);
-       if(module->fragment_context.present)
-               generate(module->fragment_context);
+       if(module->vertex_stage.present)
+               generate(module->vertex_stage);
+       if(module->geometry_stage.present)
+               generate(module->geometry_stage);
+       if(module->fragment_stage.present)
+               generate(module->fragment_stage);
 
-       if(module->vertex_context.present)
-               optimize(module->vertex_context);
-       if(module->geometry_context.present)
-               optimize(module->geometry_context);
-       if(module->fragment_context.present)
-               optimize(module->fragment_context);
+       if(module->vertex_stage.present)
+               optimize(module->vertex_stage);
+       if(module->geometry_stage.present)
+               optimize(module->geometry_stage);
+       if(module->fragment_stage.present)
+               optimize(module->fragment_stage);
 }
 
-void ProgramCompiler::generate(Context &context)
+void ProgramCompiler::generate(Stage &stage)
 {
-       inject_block(context.content, module->global_context.content);
+       inject_block(stage.content, module->shared.content);
 
-       resolve_variables(context);
+       resolve_variables(stage);
 
        InterfaceGenerator generator;
-       generator.visit(context);
+       generator.visit(stage);
 
-       resolve_variables(context);
+       resolve_variables(stage);
 
        VariableRenamer renamer;
-       context.content.visit(renamer);
+       stage.content.visit(renamer);
 }
 
-void ProgramCompiler::optimize(Context &context)
+void ProgramCompiler::optimize(Stage &stage)
 {
        while(1)
        {
                UnusedVariableLocator unused_locator;
-               unused_locator.visit(context);
+               unused_locator.visit(stage);
 
                NodeRemover remover;
                remover.to_remove = unused_locator.unused_nodes;
-               remover.visit(context);
+               remover.visit(stage);
 
                if(!remover.n_removed)
                        break;
@@ -103,16 +103,16 @@ void ProgramCompiler::inject_block(Block &target, const Block &source)
                target.body.insert(insert_point, (*i)->clone());
 }
 
-void ProgramCompiler::resolve_variables(Context &context)
+void ProgramCompiler::resolve_variables(Stage &stage)
 {
        VariableResolver resolver;
-       context.content.visit(resolver);
+       stage.content.visit(resolver);
 }
 
-string ProgramCompiler::format_context(Context &context)
+string ProgramCompiler::format_stage(Stage &stage)
 {
        Formatter formatter;
-       context.content.visit(formatter);
+       stage.content.visit(formatter);
        return formatter.formatted;
 }
 
@@ -419,12 +419,12 @@ void ProgramCompiler::VariableResolver::visit(InterfaceBlock &iface)
 
 
 ProgramCompiler::InterfaceGenerator::InterfaceGenerator():
-       context(0),
+       stage(0),
        scope_level(0),
        remove_node(false)
 { }
 
-string ProgramCompiler::InterfaceGenerator::get_out_prefix(ContextType type)
+string ProgramCompiler::InterfaceGenerator::get_out_prefix(StageType type)
 {
        if(type==VERTEX)
                return "_vs_out_";
@@ -434,13 +434,13 @@ string ProgramCompiler::InterfaceGenerator::get_out_prefix(ContextType type)
                return string();
 }
 
-void ProgramCompiler::InterfaceGenerator::visit(Context &ctx)
+void ProgramCompiler::InterfaceGenerator::visit(Stage &s)
 {
-       SetForScope<Context *> set(context, &ctx);
-       if(context->previous)
-               in_prefix = get_out_prefix(context->previous->type);
-       out_prefix = get_out_prefix(context->type);
-       ctx.content.visit(*this);
+       SetForScope<Stage *> set(stage, &s);
+       if(stage->previous)
+               in_prefix = get_out_prefix(stage->previous->type);
+       out_prefix = get_out_prefix(stage->type);
+       stage->content.visit(*this);
 }
 
 void ProgramCompiler::InterfaceGenerator::visit(Block &block)
@@ -480,8 +480,8 @@ string ProgramCompiler::InterfaceGenerator::change_prefix(const string &name, co
 
 bool ProgramCompiler::InterfaceGenerator::generate_interface(VariableDeclaration &out, const string &iface, const string &name)
 {
-       const map<string, VariableDeclaration *> &context_vars = (iface=="in" ? context->in_variables : context->out_variables);
-       if(context_vars.count(name) || iface_declarations.count(name))
+       const map<string, VariableDeclaration *> &stage_vars = (iface=="in" ? stage->in_variables : stage->out_variables);
+       if(stage_vars.count(name) || iface_declarations.count(name))
                return false;
 
        VariableDeclaration* iface_var = new VariableDeclaration;
@@ -490,7 +490,7 @@ bool ProgramCompiler::InterfaceGenerator::generate_interface(VariableDeclaration
        iface_var->type = out.type;
        iface_var->type_declaration = out.type_declaration;
        iface_var->name = name;
-       iface_var->array = (out.array || (context->type==GEOMETRY && iface=="in"));
+       iface_var->array = (out.array || (stage->type==GEOMETRY && iface=="in"));
        iface_var->array_size = out.array_size;
        if(iface=="in")
                iface_var->linked_declaration = &out;
@@ -516,12 +516,12 @@ void ProgramCompiler::InterfaceGenerator::insert_assignment(const string &left,
 
 void ProgramCompiler::InterfaceGenerator::visit(VariableReference &var)
 {
-       if(var.declaration || !context->previous)
+       if(var.declaration || !stage->previous)
                return;
        if(iface_declarations.count(var.name))
                return;
 
-       const map<string, VariableDeclaration *> &prev_out = context->previous->out_variables;
+       const map<string, VariableDeclaration *> &prev_out = stage->previous->out_variables;
        map<string, VariableDeclaration *>::const_iterator i = prev_out.find(var.name);
        if(i==prev_out.end())
                i = prev_out.find(in_prefix+var.name);
@@ -534,7 +534,7 @@ void ProgramCompiler::InterfaceGenerator::visit(VariableDeclaration &var)
        if(var.interface=="out")
        {
                if(scope_level==1)
-                       context->out_variables[var.name] = &var;
+                       stage->out_variables[var.name] = &var;
                else if(generate_interface(var, "out", change_prefix(var.name, string())))
                {
                        remove_node = true;
@@ -544,12 +544,12 @@ void ProgramCompiler::InterfaceGenerator::visit(VariableDeclaration &var)
        }
        else if(var.interface=="in")
        {
-               context->in_variables[var.name] = &var;
+               stage->in_variables[var.name] = &var;
                if(var.linked_declaration)
                        var.linked_declaration->linked_declaration = &var;
-               else if(context->previous)
+               else if(stage->previous)
                {
-                       const map<string, VariableDeclaration *> &prev_out = context->previous->out_variables;
+                       const map<string, VariableDeclaration *> &prev_out = stage->previous->out_variables;
                        map<string, VariableDeclaration *>::const_iterator i = prev_out.find(var.name);
                        if(i!=prev_out.end())
                        {
@@ -564,9 +564,9 @@ void ProgramCompiler::InterfaceGenerator::visit(VariableDeclaration &var)
 
 void ProgramCompiler::InterfaceGenerator::visit(Passthrough &pass)
 {
-       if(context->previous)
+       if(stage->previous)
        {
-               const map<string, VariableDeclaration *> &prev_out = context->previous->out_variables;
+               const map<string, VariableDeclaration *> &prev_out = stage->previous->out_variables;
                for(map<string, VariableDeclaration *>::const_iterator i=prev_out.begin(); i!=prev_out.end(); ++i)
                {
                        string out_name = change_prefix(i->second->name, out_prefix);
@@ -608,15 +608,15 @@ void ProgramCompiler::VariableRenamer::visit(VariableDeclaration &var)
 
 
 ProgramCompiler::UnusedVariableLocator::UnusedVariableLocator():
-       context(0),
+       stage(0),
        assignment(false),
        assignment_target(0)
 { }
 
-void ProgramCompiler::UnusedVariableLocator::visit(Context &ctx)
+void ProgramCompiler::UnusedVariableLocator::visit(Stage &s)
 {
-       context = &ctx;
-       ctx.content.visit(*this);
+       stage = &s;
+       stage->content.visit(*this);
 }
 
 void ProgramCompiler::UnusedVariableLocator::visit(VariableReference &var)
@@ -657,7 +657,7 @@ void ProgramCompiler::UnusedVariableLocator::visit(ExpressionStatement &expr)
        TraversingVisitor::visit(expr);
        if(assignment && assignment_target)
        {
-               if(assignment_target->interface!="out" || (context->type!=FRAGMENT && !assignment_target->linked_declaration))
+               if(assignment_target->interface!="out" || (stage->type!=FRAGMENT && !assignment_target->linked_declaration))
                {
                        unused_nodes.insert(&expr);
                        assignments[assignment_target] = &expr;
@@ -676,16 +676,16 @@ void ProgramCompiler::UnusedVariableLocator::visit(VariableDeclaration &var)
 
 
 ProgramCompiler::NodeRemover::NodeRemover():
-       context(0),
+       stage(0),
        n_removed(0),
        immutable_block(false),
        remove_block(false)
 { }
 
-void ProgramCompiler::NodeRemover::visit(Context &ctx)
+void ProgramCompiler::NodeRemover::visit(Stage &s)
 {
-       context = &ctx;
-       ctx.content.visit(*this);
+       stage = &s;
+       stage->content.visit(*this);
 }
 
 void ProgramCompiler::NodeRemover::visit(Block &block)
@@ -718,8 +718,8 @@ void ProgramCompiler::NodeRemover::visit(VariableDeclaration &var)
 {
        if(to_remove.count(&var))
        {
-               context->in_variables.erase(var.name);
-               context->out_variables.erase(var.name);
+               stage->in_variables.erase(var.name);
+               stage->out_variables.erase(var.name);
                if(var.linked_declaration)
                        var.linked_declaration->linked_declaration = 0;
        }