Add a standalone GLSL compiler frontend

[libs/gl.git] / source / glsl / compiler.cpp

diff --git a/source/glsl/compiler.cpp b/source/glsl/compiler.cpp
index 89ffd7f3f0bb73cfa295a76ccac9b5f2776a099a..ca6c58057022b8b3a9f69373433c0f6c54a2e35d 100644 (file)
--- a/source/glsl/compiler.cpp
+++ b/source/glsl/compiler.cpp
@@ -3,6 +3,7 @@
 #include <msp/strings/format.h>
 #include "compatibility.h"
 #include "compiler.h"
+#include "debug.h"
 #include "error.h"
 #include "generate.h"
 #include "optimize.h"
@@ -19,6 +20,12 @@ namespace GL {
 namespace SL {
 
 Compiler::Compiler():
+       features(Features::from_context()),
+       module(0)
+{ }
+
+Compiler::Compiler(const Features &f):
+       features(f),
        module(0)
 { }
 
@@ -126,6 +133,14 @@ const SourceMap &Compiler::get_source_map() const
        return module->source_map;
 }
 
+string Compiler::get_stage_debug(Stage::Type stage_type) const
+{
+       for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+               if(i->type==stage_type)
+                       return DumpTree().apply(*i);
+       throw key_error(Stage::get_stage_name(stage_type));
+}
+
 void Compiler::append_module(Module &mod, DataFile::Collection *res)
 {
        module->source_map.merge_from(mod.source_map);
@@ -162,8 +177,8 @@ void Compiler::append_stage(Stage &stage)
                target = &*i;
        }
 
-       if(stage.required_version>target->required_version)
-               target->required_version = stage.required_version;
+       if(stage.required_features.glsl_version>target->required_features.glsl_version)
+               target->required_features.glsl_version = stage.required_features.glsl_version;
        for(NodeList<Statement>::iterator i=stage.content.body.begin(); i!=stage.content.body.end(); ++i)
                target->content.body.push_back(*i);
        DeclarationCombiner().apply(*target);
@@ -185,8 +200,9 @@ void Compiler::import(DataFile::Collection *resources, const string &name)
 
 void Compiler::generate(Stage &stage, Mode mode)
 {
-       if(module->shared.required_version>stage.required_version)
-               stage.required_version = module->shared.required_version;
+       stage.required_features.gl_api = features.gl_api;
+       if(module->shared.required_features.glsl_version>stage.required_features.glsl_version)
+               stage.required_features.glsl_version = module->shared.required_features.glsl_version;
        inject_block(stage.content, module->shared.content);
 
        DeclarationReorderer().apply(stage);
@@ -198,7 +214,7 @@ void Compiler::generate(Stage &stage, Mode mode)
        DeclarationReorderer().apply(stage);
        FunctionResolver().apply(stage);
        if(mode==PROGRAM)
-               LegacyConverter().apply(stage);
+               LegacyConverter().apply(stage, features);
 }
 
 bool Compiler::optimize(Stage &stage)