#include <msp/core/algorithm.h>
-#include <msp/gl/extensions/ext_gpu_shader4.h>
#include <msp/strings/format.h>
-#include "compatibility.h"
+#include <msp/strings/utils.h>
+#include "builtin.h"
#include "compiler.h"
+#include "debug.h"
#include "error.h"
+#include "finalize.h"
#include "generate.h"
+#include "glsl_error.h"
#include "optimize.h"
#include "output.h"
+#include "resolve.h"
#include "resources.h"
-#include "shader.h"
+#include "validate.h"
#undef interface
namespace SL {
Compiler::Compiler():
- module(0)
+ features(Features::from_context()),
+ module(0),
+ compiled(false),
+ specialized(false)
+{ }
+
+Compiler::Compiler(const Features &f):
+ features(f),
+ module(0),
+ compiled(false),
+ specialized(false)
{ }
Compiler::~Compiler()
load_source(io, 0, src_name);
}
-void Compiler::compile()
+void Compiler::specialize(const map<string, int> &sv)
+{
+ specialized = true;
+ spec_values = sv;
+}
+
+void Compiler::compile(Mode mode)
{
+ if(specialized && mode!=PROGRAM)
+ throw invalid_operation("Compiler::compile");
+
for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
generate(*i);
+ ConstantIdAssigner().apply(*module, features);
+
+ for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ validate(*i);
+ GlobalInterfaceValidator().apply(*module);
+
+ bool valid = true;
+ for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ if(!check_errors(*i))
+ valid = false;
+ if(!valid)
+ throw invalid_shader_source(get_diagnostics());
+
+ if(specialized)
+ {
+ for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ ConstantSpecializer().apply(*i, spec_values);
+ }
for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); )
{
- if(optimize(*i))
+ OptimizeResult result = optimize(*i);
+ if(result==REDO_PREVIOUS)
i = module->stages.begin();
- else
+ else if(result!=REDO_STAGE)
++i;
}
+
+ LocationAllocator().apply(*module, features);
for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
- finalize(*i);
+ finalize(*i, mode);
+
+ compiled = true;
}
-void Compiler::add_shaders(Program &program)
+string Compiler::get_combined_glsl() const
{
- if(!module)
- throw invalid_operation("Compiler::add_shaders");
+ if(!compiled)
+ throw invalid_operation("Compiler::get_combined_glsl");
- try
- {
- for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
- {
- string stage_src = Formatter().apply(*i);
-
- if(i->type==Stage::VERTEX)
- {
- program.attach_shader_owned(new VertexShader(stage_src));
- for(map<string, unsigned>::iterator j=i->locations.begin(); j!=i->locations.end(); ++j)
- program.bind_attribute(j->second, j->first);
- }
- else if(i->type==Stage::GEOMETRY)
- program.attach_shader_owned(new GeometryShader(stage_src));
- else if(i->type==Stage::FRAGMENT)
- {
- program.attach_shader_owned(new FragmentShader(stage_src));
- if(EXT_gpu_shader4)
- {
- for(map<string, unsigned>::iterator j=i->locations.begin(); j!=i->locations.end(); ++j)
- program.bind_fragment_data(j->second, j->first);
- }
- }
- }
- }
- catch(const compile_error &e)
+ string glsl;
+
+ unsigned source_count = module->source_map.get_count();
+ for(unsigned i=1; i<source_count; ++i)
+ glsl += format("#pragma MSP source(%d, \"%s\")\n", i, module->source_map.get_name(i));
+ for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
{
- throw compile_error(module->source_map.translate_errors(e.what()));
+ glsl += format("#pragma MSP stage(%s)\n", Stage::get_stage_name(i->type));
+ glsl += Formatter().apply(*i);
+ glsl += '\n';
}
+
+ return glsl;
+}
+
+vector<Stage::Type> Compiler::get_stages() const
+{
+ vector<Stage::Type> stage_types;
+ stage_types.reserve(module->stages.size());
+ for(list<Stage>::const_iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ stage_types.push_back(i->type);
+ return stage_types;
+}
+
+string Compiler::get_stage_glsl(Stage::Type stage_type) const
+{
+ if(!compiled)
+ throw invalid_operation("Compiler::get_stage_glsl");
+ for(list<Stage>::iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ if(i->type==stage_type)
+ return Formatter().apply(*i);
+ throw key_error(Stage::get_stage_name(stage_type));
+}
+
+const map<string, unsigned> &Compiler::get_vertex_attributes() const
+{
+ if(!compiled)
+ throw invalid_operation("Compiler::get_vertex_attributes");
+ for(list<Stage>::const_iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ if(i->type==Stage::VERTEX)
+ return i->locations;
+ throw invalid_operation("Compiler::get_vertex_attributes");
+}
+
+const map<string, unsigned> &Compiler::get_fragment_outputs() const
+{
+ if(!compiled)
+ throw invalid_operation("Compiler::get_fragment_outputs");
+ for(list<Stage>::const_iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ if(i->type==Stage::FRAGMENT)
+ return i->locations;
+ throw invalid_operation("Compiler::get_fragment_outputs");
+}
+
+const map<string, unsigned> &Compiler::get_texture_bindings() const
+{
+ if(!compiled)
+ throw invalid_operation("Compiler::get_texture_bindings");
+ return module->shared.texture_bindings;
+}
+
+const map<string, unsigned> &Compiler::get_uniform_block_bindings() const
+{
+ if(!compiled)
+ throw invalid_operation("Compiler::get_uniform_block_bindings");
+ return module->shared.uniform_block_bindings;
+}
+
+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));
+}
+
+string Compiler::get_diagnostics() const
+{
+ string combined;
+ for(list<Stage>::const_iterator i=module->stages.begin(); i!=module->stages.end(); ++i)
+ for(vector<Diagnostic>::const_iterator j=i->diagnostics.begin(); j!=i->diagnostics.end(); ++j)
+ if(j->source!=INTERNAL_SOURCE)
+ append(combined, "\n", format("%s:%d: %s", module->source_map.get_name(j->source), j->line, j->message));
+ return combined;
}
void Compiler::append_module(Module &mod, DataFile::Collection *res)
{
module->source_map.merge_from(mod.source_map);
- vector<Import *> imports = NodeGatherer<Import>().apply(mod.shared);
+ vector<Import *> imports;
+ for(NodeList<Statement>::const_iterator i=mod.shared.content.body.begin(); i!=mod.shared.content.body.end(); ++i)
+ if(Import *imp = dynamic_cast<Import *>(i->get()))
+ imports.push_back(imp);
for(vector<Import *>::iterator i=imports.begin(); i!=imports.end(); ++i)
import(res, (*i)->module);
NodeRemover().apply(mod.shared, set<Node *>(imports.begin(), imports.end()));
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);
}
void Compiler::import(DataFile::Collection *resources, const string &name)
void Compiler::generate(Stage &stage)
{
- 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);
+ if(const Stage *builtins = get_builtins(stage.type))
+ inject_block(stage.content, builtins->content);
+ if(const Stage *builtins = get_builtins(Stage::SHARED))
+ inject_block(stage.content, builtins->content);
- DeclarationReorderer().apply(stage);
- FunctionResolver().apply(stage);
- VariableResolver().apply(stage);
+ // Initial resolving pass
+ resolve(stage);
+
+ /* All variables local to a stage have been resolved. Resolve non-local
+ variables through interfaces. */
InterfaceGenerator().apply(stage);
- VariableResolver().apply(stage);
- DeclarationReorderer().apply(stage);
- FunctionResolver().apply(stage);
- LegacyConverter().apply(stage);
+ resolve(stage, RESOLVE_BLOCKS|RESOLVE_TYPES|RESOLVE_VARIABLES);
+}
+
+template<typename T>
+bool Compiler::resolve(Stage &stage, unsigned &flags, unsigned bit)
+{
+ if(!(flags&bit))
+ return false;
+
+ flags &= ~bit;
+ return T().apply(stage);
}
-bool Compiler::optimize(Stage &stage)
+void Compiler::resolve(Stage &stage, unsigned flags)
{
+ while(flags)
+ {
+ if(resolve<BlockHierarchyResolver>(stage, flags, RESOLVE_BLOCKS))
+ ;
+ else if(resolve<TypeResolver>(stage, flags, RESOLVE_TYPES))
+ flags |= RESOLVE_BLOCKS|RESOLVE_VARIABLES|RESOLVE_EXPRESSIONS;
+ else if(resolve<VariableResolver>(stage, flags, RESOLVE_VARIABLES))
+ flags |= RESOLVE_EXPRESSIONS;
+ else if(resolve<FunctionResolver>(stage, flags, RESOLVE_FUNCTIONS))
+ flags |= RESOLVE_EXPRESSIONS;
+ else if(resolve<ExpressionResolver>(stage, flags, RESOLVE_EXPRESSIONS))
+ flags |= RESOLVE_VARIABLES|RESOLVE_FUNCTIONS;
+ }
+}
+
+void Compiler::validate(Stage &stage)
+{
+ DeclarationValidator().apply(stage);
+ IdentifierValidator().apply(stage);
+ ReferenceValidator().apply(stage);
+ ExpressionValidator().apply(stage);
+ FlowControlValidator().apply(stage);
+ StageInterfaceValidator().apply(stage);
+}
+
+bool Compiler::check_errors(Stage &stage)
+{
+ stable_sort(stage.diagnostics, &diagnostic_line_order);
+
+ for(vector<Diagnostic>::const_iterator i=stage.diagnostics.begin(); i!=stage.diagnostics.end(); ++i)
+ if(i->severity==Diagnostic::ERR)
+ return false;
+
+ return true;
+}
+
+bool Compiler::diagnostic_line_order(const Diagnostic &diag1, const Diagnostic &diag2)
+{
+ if(diag1.provoking_source!=diag2.provoking_source)
+ {
+ // Sort builtins first and imported modules according to import order.
+ if(diag1.provoking_source<=BUILTIN_SOURCE)
+ return diag1.provoking_source<diag2.provoking_source;
+ else if(diag2.provoking_source<=BUILTIN_SOURCE)
+ return false;
+ else
+ return diag1.provoking_source>diag2.provoking_source;
+ }
+ return diag1.provoking_line<diag2.provoking_line;
+}
+
+Compiler::OptimizeResult Compiler::optimize(Stage &stage)
+{
+ if(ConstantFolder().apply(stage))
+ resolve(stage, RESOLVE_EXPRESSIONS);
ConstantConditionEliminator().apply(stage);
- FunctionInliner().apply(stage);
- VariableResolver().apply(stage);
+ bool any_inlined = false;
+ if(FunctionInliner().apply(stage))
+ {
+ resolve(stage, RESOLVE_TYPES|RESOLVE_VARIABLES|RESOLVE_FUNCTIONS|RESOLVE_EXPRESSIONS);
+ any_inlined = true;
+ }
+ if(ExpressionInliner().apply(stage))
+ {
+ resolve(stage, RESOLVE_VARIABLES|RESOLVE_FUNCTIONS|RESOLVE_EXPRESSIONS);
+ any_inlined = true;
+ }
- bool result = UnusedVariableRemover().apply(stage);
- result |= UnusedFunctionRemover().apply(stage);
+ /* Removing variables or functions may cause things from the previous stage
+ to become unused. */
+ bool any_removed = UnreachableCodeRemover().apply(stage);
+ any_removed |= UnusedVariableRemover().apply(stage);
+ any_removed |= UnusedFunctionRemover().apply(stage);
+ any_removed |= UnusedTypeRemover().apply(stage);
- return result;
+ return any_removed ? REDO_PREVIOUS : any_inlined ? REDO_STAGE : NEXT_STAGE;
}
-void Compiler::finalize(Stage &stage)
+void Compiler::finalize(Stage &stage, Mode mode)
{
- if(get_gl_api()==OPENGL_ES2)
- DefaultPrecisionGenerator().apply(stage);
- else
- PrecisionRemover().apply(stage);
+ if(mode==PROGRAM)
+ {
+ LegacyConverter().apply(stage, features);
+ resolve(stage, RESOLVE_VARIABLES|RESOLVE_FUNCTIONS);
+ PrecisionConverter().apply(stage);
+ }
+
+ // Collect bindings from all stages into the shared stage's maps
+ module->shared.texture_bindings.insert(stage.texture_bindings.begin(), stage.texture_bindings.end());
+ module->shared.uniform_block_bindings.insert(stage.uniform_block_bindings.begin(), stage.uniform_block_bindings.end());
}
void Compiler::inject_block(Block &target, const Block &source)
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