X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fcore%2Fprogram.cpp;h=16b2fa79c7509a5ee38a6f912c5a2da0ebbf83ec;hp=ed2455f86aa315ec79f97bf2860563f7d40cc243;hb=5871764de7aa23d2c40cac03ad9d07088fb57e06;hpb=9b3bce7ae76ff8c0c81315d2505ea96bf422a318

diff --git a/source/core/program.cpp b/source/core/program.cpp
index ed2455f8..16b2fa79 100644
--- a/source/core/program.cpp
+++ b/source/core/program.cpp
@@ -1,88 +1,15 @@
-#include <cstring>
-#include <set>
 #include <msp/core/algorithm.h>
-#include <msp/core/hash.h>
-#include <msp/core/maputils.h>
-#include <msp/core/raii.h>
-#include <msp/gl/extensions/arb_es2_compatibility.h>
-#include <msp/gl/extensions/arb_fragment_shader.h>
-#include <msp/gl/extensions/arb_gl_spirv.h>
-#include <msp/gl/extensions/arb_geometry_shader4.h>
-#include <msp/gl/extensions/arb_separate_shader_objects.h>
-#include <msp/gl/extensions/arb_shader_objects.h>
-#include <msp/gl/extensions/arb_uniform_buffer_object.h>
-#include <msp/gl/extensions/arb_vertex_shader.h>
-#include <msp/gl/extensions/ext_gpu_shader4.h>
-#include <msp/gl/extensions/khr_debug.h>
-#include <msp/gl/extensions/nv_non_square_matrices.h>
-#include <msp/io/print.h>
-#include <msp/strings/format.h>
-#include "buffer.h"
 #include "error.h"
-#include "misc.h"
 #include "program.h"
-#include "resources.h"
-#include "shader.h"
-#include "glsl/compiler.h"
 
 using namespace std;
 
 namespace Msp {
 namespace GL {
 
-Program::Program()
-{
-	init();
-}
-
-Program::Program(const string &source)
-{
-	init();
-
-	GlslModule mod;
-	mod.set_source(source);
-	add_stages(mod);
-
-	link();
-	module = 0;
-}
-
-Program::Program(const string &vert, const string &frag)
-{
-	init();
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-	attach_shader_owned(new VertexShader(vert));
-	attach_shader_owned(new FragmentShader(frag));
-#pragma GCC diagnostic pop
-	link();
-}
-
 Program::Program(const Module &mod, const map<string, int> &spec_values)
 {
-	init();
 	add_stages(mod, spec_values);
-	link();
-}
-
-void Program::init()
-{
-	static Require _req(ARB_shader_objects);
-
-	id = glCreateProgram();
-	fill(stage_ids, stage_ids+MAX_STAGES, 0);
-	module = 0;
-	transient = 0;
-	linked = false;
-}
-
-Program::~Program()
-{
-	for(unsigned i=0; i<MAX_STAGES; ++i)
-		if(stage_ids[i])
-			glDeleteShader(stage_ids[i]);
-	glDeleteProgram(id);
 }
 
 void Program::add_stages(const Module &mod, const map<string, int> &spec_values)
@@ -90,629 +17,263 @@ void Program::add_stages(const Module &mod, const map<string, int> &spec_values)
 	if(has_stages())
 		throw invalid_operation("Program::add_stages");
 
+	reflect_data = ReflectData();
+
+	TransientData transient;
 	switch(mod.get_format())
 	{
-	case Module::GLSL: return add_glsl_stages(static_cast<const GlslModule &>(mod), spec_values);
-	case Module::SPIR_V: return add_spirv_stages(static_cast<const SpirVModule &>(mod), spec_values);
-	default: throw invalid_argument("Program::add_stages");
+	case Module::GLSL:
+		add_glsl_stages(static_cast<const GlslModule &>(mod), spec_values, transient);
+		break;
+	case Module::SPIR_V:
+		add_spirv_stages(static_cast<const SpirVModule &>(mod), spec_values);
+		break;
+	default:
+		throw invalid_argument("Program::add_stages");
 	}
-}
 
-bool Program::has_stages() const
-{
-	for(unsigned i=0; i<MAX_STAGES; ++i)
-		if(stage_ids[i])
-			return true;
-	return false;
-}
+	finalize(mod, transient);
 
-unsigned Program::add_stage(Stage type)
-{
-	GLenum gl_type;
-	switch(type)
+	if(mod.get_format()==Module::SPIR_V)
 	{
-	case VERTEX: { static Require _req(ARB_vertex_shader); gl_type = GL_VERTEX_SHADER; } break;
-	case GEOMETRY: { static Require _req(ARB_geometry_shader4); gl_type = GL_GEOMETRY_SHADER; } break;
-	case FRAGMENT: { static Require _req(ARB_fragment_shader); gl_type = GL_FRAGMENT_SHADER; } break;
-	default: throw invalid_argument("Program::add_stage");
+		const SpirVModule &spirv_mod = static_cast<const SpirVModule &>(mod);
+		vector<uint8_t> used_variables = collect_used_variables(spirv_mod, spec_values);
+		collect_uniforms(spirv_mod, used_variables);
+		collect_attributes(spirv_mod, used_variables);
+		collect_builtins(spirv_mod);
 	}
 
-	if(stage_ids[type])
-		throw invalid_operation("Program::add_stage");
-
-	unsigned stage_id = glCreateShader(gl_type);
-	stage_ids[type] = stage_id;
-	glAttachShader(id, stage_id);
+	finalize_uniforms();
 
-#ifdef DEBUG
-	if(!debug_name.empty() && KHR_debug)
-		set_stage_debug_name(stage_id, type);
-#endif
-
-	return stage_id;
+	for(const ReflectData::UniformInfo &u: reflect_data.uniforms)
+		require_type(u.type);
+	for(const ReflectData::AttributeInfo &a: reflect_data.attributes)
+		require_type(a.type);
 }
 
-void Program::add_glsl_stages(const GlslModule &mod, const map<string, int> &spec_values)
+vector<uint8_t> Program::collect_used_variables(const SpirVModule &mod, const map<string, int> &spec_values)
 {
-	module = &mod;
-
-	SL::Compiler compiler;
-	compiler.set_source(mod.get_prepared_source(), "<module>");
-	compiler.specialize(spec_values);
-	compiler.compile(SL::Compiler::PROGRAM);
-#ifdef DEBUG
-	string diagnostics = compiler.get_diagnostics();
-	if(!diagnostics.empty())
-		IO::print("Program diagnostics:\n%s\n", diagnostics);
-#endif
-
-	vector<SL::Stage::Type> stages = compiler.get_stages();
-	for(vector<SL::Stage::Type>::const_iterator i=stages.begin(); i!=stages.end(); ++i)
+	std::map<unsigned, int> spec_values_by_id;
+	for(const SpirVModule::Constant &c: mod.get_spec_constants())
 	{
-		unsigned stage_id = 0;
-		switch(*i)
-		{
-		case SL::Stage::VERTEX: stage_id = add_stage(VERTEX); break;
-		case SL::Stage::GEOMETRY: stage_id = add_stage(GEOMETRY); break;
-		case SL::Stage::FRAGMENT: stage_id = add_stage(FRAGMENT); break;
-		default: throw invalid_operation("Program::add_glsl_stages");
-		}
-
-		string stage_src = compiler.get_stage_glsl(*i);
-		const char *src_ptr = stage_src.data();
-		int src_len = stage_src.size();
-		glShaderSource(stage_id, 1, &src_ptr, &src_len);
-
-		if(*i==SL::Stage::VERTEX)
-		{
-			const map<string, unsigned> &attribs = compiler.get_vertex_attributes();
-			for(map<string, unsigned>::const_iterator j=attribs.begin(); j!=attribs.end(); ++j)
-				glBindAttribLocation(id, j->second, j->first.c_str());
-		}
-
-		if(*i==SL::Stage::FRAGMENT && EXT_gpu_shader4)
-		{
-			const map<string, unsigned> &frag_outs = compiler.get_fragment_outputs();
-			for(map<string, unsigned>::const_iterator j=frag_outs.begin(); j!=frag_outs.end(); ++j)
-				glBindFragDataLocation(id, j->second, j->first.c_str());
-		}
-
-		compile_glsl_stage(stage_id);
+		auto i = spec_values.find(c.name);
+		if(i!=spec_values.end())
+			spec_values_by_id[c.constant_id] = i->second;
 	}
 
-	if(!transient)
-		transient = new TransientData;
-	transient->textures = compiler.get_texture_bindings();
-	transient->blocks = compiler.get_uniform_block_bindings();
-}
-
-void Program::compile_glsl_stage(unsigned stage_id)
-{
-	glCompileShader(stage_id);
-	bool compiled = get_shader_i(stage_id, GL_COMPILE_STATUS);
-
-	GLsizei info_log_len = get_shader_i(stage_id, GL_INFO_LOG_LENGTH);
-	string info_log(info_log_len+1, 0);
-	glGetShaderInfoLog(stage_id, info_log_len+1, &info_log_len, &info_log[0]);
-	info_log.erase(info_log_len);
-	if(module && module->get_format()==Module::GLSL)
-		info_log = static_cast<const GlslModule *>(module)->get_source_map().translate_errors(info_log);
-
-	if(!compiled)
-		throw compile_error(info_log);
-#ifdef DEBUG
-	if(!info_log.empty())
-		IO::print("Shader compile info log:\n%s", info_log);
-#endif
-}
-
-void Program::add_spirv_stages(const SpirVModule &mod, const map<string, int> &spec_values)
-{
-	static Require _req(ARB_gl_spirv);
-	static Require _req2(ARB_ES2_compatibility);
-
-	module = &mod;
-
-	const vector<SpirVModule::EntryPoint> &entry_points = mod.get_entry_points();
-	unsigned n_stages = 0;
-	unsigned used_stage_ids[MAX_STAGES];
-	for(vector<SpirVModule::EntryPoint>::const_iterator i=entry_points.begin(); i!=entry_points.end(); ++i)
+	const vector<SpirVModule::InstructionBlock> &blocks = mod.get_blocks();
+	vector<uint8_t> visited(blocks.size(), 4);
+	for(unsigned i=0; i<blocks.size(); ++i)
 	{
-		unsigned stage_id = 0;
-		switch(i->stage)
-		{
-		case SpirVModule::VERTEX: stage_id = add_stage(VERTEX); break;
-		case SpirVModule::GEOMETRY: stage_id = add_stage(GEOMETRY); break;
-		case SpirVModule::FRAGMENT: stage_id = add_stage(FRAGMENT); break;
-		default: throw invalid_operation("Program::add_spirv_stages");
-		}
-
-		used_stage_ids[n_stages++] = stage_id;
-	}
+		const SpirVModule::InstructionBlock &b = blocks[i];
 
-	const vector<UInt32> &code = mod.get_code();
-	glShaderBinary(n_stages, used_stage_ids, GL_SHADER_BINARY_FORMAT_SPIR_V, &code[0], code.size()*4);
-
-	if(!spec_values.empty() && !transient)
-		transient = new TransientData;
-
-	const vector<SpirVModule::Constant> &spec_consts = mod.get_spec_constants();
-	vector<unsigned> spec_id_array;
-	vector<unsigned> spec_value_array;
-	spec_id_array.reserve(spec_consts.size());
-	spec_value_array.reserve(spec_consts.size());
-	for(vector<SpirVModule::Constant>::const_iterator i=spec_consts.begin(); i!=spec_consts.end(); ++i)
-	{
-		map<string, int>::const_iterator j = spec_values.find(i->name);
-		if(j!=spec_values.end())
+		bool cond = true;
+		if(b.condition)
 		{
-			spec_id_array.push_back(i->constant_id);
-			spec_value_array.push_back(j->second);
-			transient->spec_values[i->constant_id] = j->second;
+			cond = b.condition->i_value;
+			auto j = spec_values_by_id.find(b.condition->constant_id);
+			if(j!=spec_values_by_id.end())
+				cond = j->second;
+			if(b.negate_condition)
+				cond = !cond;
 		}
-	}
-
-	vector<SpirVModule::EntryPoint>::const_iterator j=entry_points.begin();
-	for(unsigned i=0; i<MAX_STAGES; ++i)
-		if(stage_ids[i])
-			glSpecializeShader(stage_ids[i], j->name.c_str(), spec_id_array.size(), &spec_id_array[0], &spec_value_array[0]);
-}
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-void Program::attach_shader(Shader &shader)
-{
-	unsigned shader_id = shader.steal_id();
-	if(!shader_id)
-		throw invalid_argument("Program::attach_shader");
-
-	int type;
-	glGetShaderiv(shader_id, GL_SHADER_TYPE, &type);
-	switch(type)
-	{
-	case GL_VERTEX_SHADER: stage_ids[VERTEX] = shader_id; break;
-	case GL_GEOMETRY_SHADER: stage_ids[GEOMETRY] = shader_id; break;
-	case GL_FRAGMENT_SHADER: stage_ids[FRAGMENT] = shader_id; break;
-	}
-
-	glAttachShader(id, shader_id);
-	compile_glsl_stage(shader_id);
-}
-
-void Program::attach_shader_owned(Shader *shader)
-{
-	attach_shader(*shader);
-	delete shader;
-}
-
-void Program::detach_shader(Shader &)
-{
-}
-
-const vector<Shader *> &Program::get_attached_shaders() const
-{
-	static vector<Shader *> dummy;
-	return dummy;
-}
-
-void Program::bind_attribute(unsigned index, const string &name)
-{
-	static Require _req(ARB_vertex_shader);
-	glBindAttribLocation(id, index, name.c_str());
-}
-
-void Program::bind_attribute(VertexAttribute attr, const string &name)
-{
-	bind_attribute(get_attribute_semantic(attr), name);
-}
-
-void Program::bind_fragment_data(unsigned index, const string &name)
-{
-	static Require _req(EXT_gpu_shader4);
-	glBindFragDataLocation(id, index, name.c_str());
-}
-#pragma GCC diagnostic pop
 
-void Program::link()
-{
-	if(!has_stages())
-		throw invalid_operation("Program::link");
-
-	uniforms.clear();
-	uniform_blocks.clear();
-	attributes.clear();
-
-	glLinkProgram(id);
-	linked = get_program_i(id, GL_LINK_STATUS);
-
-	GLsizei info_log_len = get_program_i(id, GL_INFO_LOG_LENGTH);
-	string info_log(info_log_len+1, 0);
-	glGetProgramInfoLog(id, info_log_len+1, &info_log_len, &info_log[0]);
-	info_log.erase(info_log_len);
-	if(module && module->get_format()==Module::GLSL)
-		info_log = static_cast<const GlslModule *>(module)->get_source_map().translate_errors(info_log);
-
-	if(!linked)
-		throw compile_error(info_log);
-#ifdef DEBUG
-	if(!info_log.empty())
-		IO::print("Program link info log:\n%s", info_log);
-#endif
-
-	if(module->get_format()==Module::GLSL)
-	{
-		query_uniforms();
-		query_attributes();
-		if(transient)
-		{
-			for(unsigned i=0; i<uniform_blocks.size(); ++i)
-			{
-				map<string, unsigned>::const_iterator j = transient->blocks.find(uniform_blocks[i].name);
-				if(j!=transient->blocks.end())
-				{
-					glUniformBlockBinding(id, i, j->second);
-					uniform_blocks[i].bind_point = j->second;
-				}
-			}
-
-			if(!ARB_separate_shader_objects)
-				glUseProgram(id);
-			for(map<string, unsigned>::const_iterator i=transient->textures.begin(); i!=transient->textures.end(); ++i)
-			{
-				int location = get_uniform_location(i->first);
-				if(location>=0)
-				{
-					if(ARB_separate_shader_objects)
-						glProgramUniform1i(id, location, i->second);
-					else
-						glUniform1i(location, i->second);
-				}
-			}
-		}
-	}
-	else if(module->get_format()==Module::SPIR_V)
-	{
-		collect_uniforms();
-		collect_attributes();
+		visited[i] |= cond*2;
+		for(const SpirVModule::InstructionBlock *s: b.successors)
+			visited[s-blocks.data()] &= 3;
 	}
 
-	delete transient;
-	transient = 0;
+	for(unsigned i=0; i<blocks.size(); ++i)
+		if(visited[i]&4)
+			collect_visited_blocks(blocks, i, visited);
 
-	for(vector<UniformInfo>::const_iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
-		require_type(i->type);
-	for(vector<AttributeInfo>::const_iterator i=attributes.begin(); i!=attributes.end(); ++i)
-		require_type(i->type);
-}
-
-void Program::query_uniforms()
-{
-	unsigned count = get_program_i(id, GL_ACTIVE_UNIFORMS);
-	uniforms.reserve(count);
-	vector<string> uniform_names(count);
-	for(unsigned i=0; i<count; ++i)
-	{
-		char name[128];
-		int len = 0;
-		int size;
-		GLenum type;
-		glGetActiveUniform(id, i, sizeof(name), &len, &size, &type, name);
-		if(len && strncmp(name, "gl_", 3))
-		{
-			/* Some implementations report the first element of a uniform array,
-			others report just the name of the array itself. */
-			if(len>3 && !strcmp(name+len-3, "[0]"))
-				name[len-3] = 0;
-
-			uniforms.push_back(UniformInfo());
-			UniformInfo &info = uniforms.back();
-			info.name = name;
-			info.tag = name;
-			info.array_size = size;
-			info.type = from_gl_type(type);
-			uniform_names[i] = name;
-		}
-	}
-
-	sort_member(uniforms, &UniformInfo::tag);
-
-	if(ARB_uniform_buffer_object)
-	{
-		vector<UniformInfo *> uniforms_by_index(count);
-		for(unsigned i=0; i<count; ++i)
-			if(!uniform_names[i].empty())
-				// The element is already known to be present
-				uniforms_by_index[i] = &*lower_bound_member(uniforms, Tag(uniform_names[i]), &UniformInfo::tag);
-		query_uniform_blocks(uniforms_by_index);
-	}
-
-	uniform_blocks.push_back(UniformBlockInfo());
-	UniformBlockInfo &default_block = uniform_blocks.back();
-
-	for(vector<UniformInfo>::iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
-		if(!i->block)
-		{
-			i->location = glGetUniformLocation(id, i->name.c_str());
-			i->block = &default_block;
-			default_block.uniforms.push_back(&*i);
-
-			if(is_image(i->type) && i->location>=0)
-				glGetUniformiv(id, i->location, &i->binding);
-		}
-
-	default_block.layout_hash = compute_layout_hash(default_block.uniforms);
-
-	update_layout_hash();
-}
-
-void Program::query_uniform_blocks(const vector<UniformInfo *> &uniforms_by_index)
-{
-	unsigned count = get_program_i(id, GL_ACTIVE_UNIFORM_BLOCKS);
-	// Reserve an extra index for the default block
-	uniform_blocks.reserve(count+1);
-	for(unsigned i=0; i<count; ++i)
-	{
-		char name[128];
-		int len;
-		glGetActiveUniformBlockName(id, i, sizeof(name), &len, name);
-		uniform_blocks.push_back(UniformBlockInfo());
-		UniformBlockInfo &info = uniform_blocks.back();
-		info.name = name;
-
-		int value;
-		glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_DATA_SIZE, &value);
-		info.data_size = value;
-
-		glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_BINDING, &value);
-		info.bind_point = value;
-
-		glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, &value);
-		vector<int> indices(value);
-		glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, &indices[0]);
-		for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
-		{
-			if(!uniforms_by_index[*j])
-				throw logic_error("Program::link");
-			info.uniforms.push_back(uniforms_by_index[*j]);
-			uniforms_by_index[*j]->block = &info;
-		}
-
-		vector<unsigned> query_indices(indices.begin(), indices.end());
-		vector<int> values(indices.size());
-		glGetActiveUniformsiv(id, query_indices.size(), &query_indices[0], GL_UNIFORM_OFFSET, &values[0]);
-		for(unsigned j=0; j<indices.size(); ++j)
-			uniforms_by_index[indices[j]]->offset = values[j];
-
-		query_indices.clear();
-		for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
-			if(uniforms_by_index[*j]->array_size>1)
-				query_indices.push_back(*j);
-		if(!query_indices.empty())
-		{
-			glGetActiveUniformsiv(id, query_indices.size(), &query_indices[0], GL_UNIFORM_ARRAY_STRIDE, &values[0]);
-			for(unsigned j=0; j<query_indices.size(); ++j)
-				uniforms_by_index[query_indices[j]]->array_stride = values[j];
-		}
-
-		query_indices.clear();
-		for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
-		{
-			DataType t = uniforms_by_index[*j]->type;
-			if(is_matrix(t))
-				query_indices.push_back(*j);
-		}
-		if(!query_indices.empty())
+	const vector<SpirVModule::Variable> &variables = mod.get_variables();
+	vector<uint8_t> used(variables.size());
+	for(unsigned i=0; i<blocks.size(); ++i)
+		if(visited[i]&1)
 		{
-			glGetActiveUniformsiv(id, query_indices.size(), &query_indices[0], GL_UNIFORM_MATRIX_STRIDE, &values[0]);
-			for(unsigned j=0; j<query_indices.size(); ++j)
-				uniforms_by_index[query_indices[j]]->matrix_stride = values[j];
+			for(const SpirVModule::Variable *v: blocks[i].accessed_variables)
+				used[v-variables.data()] = 1;
 		}
 
-		sort(info.uniforms, uniform_location_compare);
-		info.layout_hash = compute_layout_hash(info.uniforms);
-	}
+	return used;
 }
 
-void Program::query_attributes()
+void Program::collect_visited_blocks(const vector<SpirVModule::InstructionBlock> &blocks, unsigned i, vector<uint8_t> &visited)
 {
-	unsigned count = get_program_i(id, GL_ACTIVE_ATTRIBUTES);
-	attributes.reserve(count);
-	for(unsigned i=0; i<count; ++i)
+	visited[i] |= 1;
+	for(const SpirVModule::InstructionBlock *s: blocks[i].successors)
 	{
-		char name[128];
-		int len = 0;
-		int size;
-		GLenum type;
-		glGetActiveAttrib(id, i, sizeof(name), &len, &size, &type, name);
-		if(len && strncmp(name, "gl_", 3))
-		{
-			if(len>3 && !strcmp(name+len-3, "[0]"))
-				name[len-3] = 0;
-
-			attributes.push_back(AttributeInfo());
-			AttributeInfo &info = attributes.back();
-			info.name = name;
-			info.location = glGetAttribLocation(id, name);
-			info.array_size = size;
-			info.type = from_gl_type(type);
-		}
+		unsigned j = s-blocks.data();
+		if((visited[j]&3)==2)
+			collect_visited_blocks(blocks, j, visited);
 	}
 }
 
-void Program::collect_uniforms()
+void Program::collect_uniforms(const SpirVModule &mod, const vector<uint8_t> &used_variables)
 {
-	const SpirVModule &mod = static_cast<const SpirVModule &>(*module);
-
 	// Prepare the default block
-	uniform_blocks.push_back(UniformBlockInfo());
+	reflect_data.uniform_blocks.emplace_back();
 	vector<vector<string> > block_uniform_names(1);
 
 	const vector<SpirVModule::Variable> &variables = mod.get_variables();
-	for(vector<SpirVModule::Variable>::const_iterator i=variables.begin(); i!=variables.end(); ++i)
+	unsigned n_descriptor_sets = 0;
+	for(unsigned i=0; i<variables.size(); ++i)
 	{
-		if(i->storage==SpirVModule::UNIFORM && i->struct_type)
+		if(!used_variables[i])
+			continue;
+
+		const SpirVModule::Variable &v = variables[i];
+		if((v.storage==SpirVModule::UNIFORM || v.storage==SpirVModule::PUSH_CONSTANT) && v.struct_type)
 		{
-			uniform_blocks.push_back(UniformBlockInfo());
-			UniformBlockInfo &info = uniform_blocks.back();
-			info.name = i->struct_type->name;
-			info.bind_point = i->binding;
-			info.data_size = i->struct_type->size;
+			reflect_data.uniform_blocks.emplace_back();
+			ReflectData::UniformBlockInfo &info = reflect_data.uniform_blocks.back();
+			info.name = v.struct_type->name;
+			if(v.storage==SpirVModule::PUSH_CONSTANT)
+				info.bind_point = ReflectData::PUSH_CONSTANT;
+			else
+			{
+				if(v.binding>=0)
+					info.bind_point = v.binding | (v.descriptor_set<<20);
+				else
+					info.bind_point = ReflectData::DEFAULT_BLOCK;
+				n_descriptor_sets = max(n_descriptor_sets, v.descriptor_set+1);
+			}
+			info.data_size = v.struct_type->size;
 
 			string prefix;
-			if(!i->name.empty())
-				prefix = i->struct_type->name+".";
-			block_uniform_names.push_back(vector<string>());
-			collect_block_uniforms(*i->struct_type, prefix, 0, block_uniform_names.back());
+			if(!v.name.empty())
+				prefix = v.struct_type->name+".";
+			block_uniform_names.emplace_back();
+			collect_block_uniforms(*v.struct_type, prefix, 0, block_uniform_names.back());
 		}
-		else if(i->storage==SpirVModule::UNIFORM_CONSTANT && i->location>=0)
+		else if(v.storage==SpirVModule::UNIFORM_CONSTANT && (v.location>=0 || v.binding>=0))
 		{
-			block_uniform_names[0].push_back(i->name);
-			uniforms.push_back(UniformInfo());
-			UniformInfo &info = uniforms.back();
-			info.name = i->name;
-			info.tag = i->name;
-			info.location = i->location;
-			info.binding = i->binding;
-			info.array_size = i->array_size;
-			info.type = i->type;
+			block_uniform_names[0].push_back(v.name);
+			reflect_data.uniforms.emplace_back();
+			ReflectData::UniformInfo &info = reflect_data.uniforms.back();
+			info.name = v.name;
+			info.tag = v.name;
+			info.location = v.location;
+			if(v.binding>=0)
+				info.binding = v.binding | (v.descriptor_set<<20);
+			n_descriptor_sets = max(n_descriptor_sets, v.descriptor_set+1);
+			info.array_size = max(v.array_size, 1U);
+			info.type = v.type;
 		}
 	}
 
-	sort_member(uniforms, &UniformInfo::tag);
+	sort_member(reflect_data.uniforms, &ReflectData::UniformInfo::tag);
+
+	if(block_uniform_names.front().empty())
+	{
+		reflect_data.uniform_blocks.erase(reflect_data.uniform_blocks.begin());
+		block_uniform_names.erase(block_uniform_names.begin());
+	}
 
-	for(unsigned i=0; i<uniform_blocks.size(); ++i)
+	for(unsigned i=0; i<reflect_data.uniform_blocks.size(); ++i)
 	{
-		UniformBlockInfo &block = uniform_blocks[i];
-		const vector<string> &names = block_uniform_names[i];
-		for(vector<string>::const_iterator j=names.begin(); j!=names.end(); ++j)
+		ReflectData::UniformBlockInfo &block = reflect_data.uniform_blocks[i];
+		for(const string &n: block_uniform_names[i])
 		{
 			// The element is already known to be present
-			UniformInfo &uni = *lower_bound_member(uniforms, Tag(*j), &UniformInfo::tag);
+			ReflectData::UniformInfo &uni = *lower_bound_member(reflect_data.uniforms, Tag(n), &ReflectData::UniformInfo::tag);
 			block.uniforms.push_back(&uni);
 			uni.block = &block;
 		}
-		sort(block.uniforms, uniform_location_compare);
-		block.layout_hash = compute_layout_hash(block.uniforms);
+		block.sort_uniforms();
+		block.update_layout_hash();
 	}
 
-	update_layout_hash();
+	reflect_data.n_descriptor_sets = n_descriptor_sets;
+	reflect_data.update_layout_hash();
 }
 
 void Program::collect_block_uniforms(const SpirVModule::Structure &strct, const string &prefix, unsigned base_offset, vector<string> &uniform_names)
 {
-	for(vector<SpirVModule::StructMember>::const_iterator i=strct.members.begin(); i!=strct.members.end(); ++i)
+	for(const SpirVModule::StructMember &m: strct.members)
 	{
-		unsigned offset = base_offset+i->offset;
-		if(i->struct_type)
+		unsigned offset = base_offset+m.offset;
+		if(m.struct_type)
 		{
-			unsigned array_size = i->array_size;
-			if(i->array_size_spec)
-			{
-				array_size = i->array_size_spec->i_value;
-				if(transient)
-				{
-					map<unsigned, int>::const_iterator j = transient->spec_values.find(i->array_size_spec->constant_id);
-					if(j!=transient->spec_values.end())
-						array_size = j->second;
-				}
-			}
-
-			if(array_size)
+			if(m.array_size)
 			{
-				for(unsigned j=0; j<array_size; ++j, offset+=i->array_stride)
-					collect_block_uniforms(*i->struct_type, format("%s%s[%d].", prefix, i->name, j), offset, uniform_names);
+				for(unsigned j=0; j<m.array_size; ++j, offset+=m.array_stride)
+					collect_block_uniforms(*m.struct_type, format("%s%s[%d].", prefix, m.name, j), offset, uniform_names);
 			}
 			else
-				collect_block_uniforms(*i->struct_type, prefix+i->name+".", offset, uniform_names);
+				collect_block_uniforms(*m.struct_type, prefix+m.name+".", offset, uniform_names);
 		}
 		else
 		{
-			string name = prefix+i->name;
+			string name = prefix+m.name;
 			uniform_names.push_back(name);
-			uniforms.push_back(UniformInfo());
-			UniformInfo &info = uniforms.back();
+			reflect_data.uniforms.emplace_back();
+			ReflectData::UniformInfo &info = reflect_data.uniforms.back();
 			info.name = name;
 			info.tag = name;
 			info.offset = offset;
-			info.array_size = i->array_size;
-			info.array_stride = i->array_stride;
-			info.matrix_stride = i->matrix_stride;
-			info.type = i->type;
+			info.array_size = max(m.array_size, 1U);
+			info.array_stride = m.array_stride;
+			info.matrix_stride = m.matrix_stride;
+			info.type = m.type;
 		}
 	}
 }
 
-void Program::collect_attributes()
+void Program::collect_attributes(const SpirVModule &mod, const vector<uint8_t> &used_variables)
 {
-	const SpirVModule &mod = static_cast<const SpirVModule &>(*module);
-
-	const vector<SpirVModule::EntryPoint> &entry_points = mod.get_entry_points();
-	for(vector<SpirVModule::EntryPoint>::const_iterator i=entry_points.begin(); i!=entry_points.end(); ++i)
-		if(i->stage==SpirVModule::VERTEX && i->name=="main")
+	const vector<SpirVModule::Variable> &variables = mod.get_variables();
+	for(const SpirVModule::EntryPoint &e: mod.get_entry_points())
+		if(e.stage==SpirVModule::VERTEX && e.name=="main")
 		{
-			for(vector<const SpirVModule::Variable *>::const_iterator j=i->globals.begin(); j!=i->globals.end(); ++j)
-				if((*j)->storage==SpirVModule::INPUT)
+			for(const SpirVModule::Variable *v: e.globals)
+				if(v->storage==SpirVModule::INPUT && used_variables[v-variables.data()])
 				{
-					attributes.push_back(AttributeInfo());
-					AttributeInfo &info = attributes.back();
-					info.name = (*j)->name;
-					info.location = (*j)->location;
-					info.array_size = (*j)->array_size;
-					info.type = (*j)->type;
+					reflect_data.attributes.emplace_back();
+					ReflectData::AttributeInfo &info = reflect_data.attributes.back();
+					info.name = v->name;
+					info.location = v->location;
+					info.array_size = v->array_size;
+					info.type = v->type;
 				}
 		}
 }
 
-void Program::update_layout_hash()
-{
-	string layout_descriptor;
-	for(vector<UniformBlockInfo>::const_iterator i=uniform_blocks.begin(); i!=uniform_blocks.end(); ++i)
-		layout_descriptor += format("%d:%x\n", i->bind_point, i->layout_hash);
-	uniform_layout_hash = hash32(layout_descriptor);
-}
-
-Program::LayoutHash Program::compute_layout_hash(const vector<const UniformInfo *> &uniforms)
+void Program::collect_builtins(const SpirVModule &mod)
 {
-	string layout_descriptor;
-	for(vector<const UniformInfo *>::const_iterator i = uniforms.begin(); i!=uniforms.end(); ++i)
-		layout_descriptor += format("%d:%s:%x:%d\n", (*i)->location, (*i)->name, (*i)->type, (*i)->array_size);
-	return hash32(layout_descriptor);
+	for(const SpirVModule::Variable &v: mod.get_variables())
+		if(v.storage==SpirVModule::OUTPUT && v.struct_type)
+			collect_builtins(*v.struct_type);
 }
 
-bool Program::uniform_location_compare(const UniformInfo *uni1, const UniformInfo *uni2)
+void Program::collect_builtins(const SpirVModule::Structure &strct)
 {
-	return uni1->location<uni2->location;
+	for(const SpirVModule::StructMember &m: strct.members)
+		if(m.builtin==SpirVModule::CLIP_DISTANCE)
+			reflect_data.n_clip_distances = m.array_size;
 }
 
-string Program::get_info_log() const
+const ReflectData::UniformBlockInfo &Program::get_uniform_block_info(const string &name) const
 {
-	GLsizei len = get_program_i(id, GL_INFO_LOG_LENGTH);
-	string log(len+1, 0);
-	glGetProgramInfoLog(id, len+1, &len, &log[0]);
-	log.erase(len);
-	return log;
-}
-
-const Program::UniformBlockInfo &Program::get_uniform_block_info(const string &name) const
-{
-	for(vector<UniformBlockInfo>::const_iterator i=uniform_blocks.begin(); i!=uniform_blocks.end(); ++i)
-		if(i->name==name)
-			return *i;
-	throw key_error(name);
+	auto i = find_member(reflect_data.uniform_blocks, name, &ReflectData::UniformBlockInfo::name);
+	if(i==reflect_data.uniform_blocks.end())
+		throw key_error(name);
+	return *i;
 }
 
-const Program::UniformInfo &Program::get_uniform_info(const string &name) const
+const ReflectData::UniformInfo &Program::get_uniform_info(const string &name) const
 {
-	vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, Tag(name), &UniformInfo::tag);
-	if(i==uniforms.end() || i->name!=name)
+	auto i = lower_bound_member(reflect_data.uniforms, Tag(name), &ReflectData::UniformInfo::tag);
+	if(i==reflect_data.uniforms.end() || i->name!=name)
 		throw key_error(name);
 	return *i;
 }
 
-const Program::UniformInfo &Program::get_uniform_info(Tag tag) const
+const ReflectData::UniformInfo &Program::get_uniform_info(Tag tag) const
 {
-	vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, tag, &UniformInfo::tag);
-	if(i==uniforms.end() || i->tag!=tag)
+	auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
+	if(i==reflect_data.uniforms.end() || i->tag!=tag)
 		throw key_error(tag);
 	return *i;
 }
@@ -722,26 +283,26 @@ int Program::get_uniform_location(const string &name) const
 	if(name[name.size()-1]==']')
 		throw invalid_argument("Program::get_uniform_location");
 
-	vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, Tag(name), &UniformInfo::tag);
-	return i!=uniforms.end() && i->name==name && i->block->bind_point<0 ? i->location : -1;
+	auto i = lower_bound_member(reflect_data.uniforms, Tag(name), &ReflectData::UniformInfo::tag);
+	return i!=reflect_data.uniforms.end() && i->name==name && i->block->bind_point<0 ? i->location : -1;
 }
 
 int Program::get_uniform_location(Tag tag) const
 {
-	vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, tag, &UniformInfo::tag);
-	return i!=uniforms.end() && i->tag==tag && i->block->bind_point<0 ? i->location : -1;
+	auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
+	return i!=reflect_data.uniforms.end() && i->tag==tag && i->block->bind_point<0 ? i->location : -1;
 }
 
 int Program::get_uniform_binding(Tag tag) const
 {
-	vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, tag, &UniformInfo::tag);
-	return i!=uniforms.end() && i->tag==tag ? i->binding : -1;
+	auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
+	return i!=reflect_data.uniforms.end() && i->tag==tag ? i->binding : -1;
 }
 
-const Program::AttributeInfo &Program::get_attribute_info(const string &name) const
+const ReflectData::AttributeInfo &Program::get_attribute_info(const string &name) const
 {
-	vector<AttributeInfo>::const_iterator i = lower_bound_member(attributes, name, &AttributeInfo::name);
-	if(i==attributes.end() || i->name!=name)
+	auto i = lower_bound_member(reflect_data.attributes, name, &ReflectData::AttributeInfo::name);
+	if(i==reflect_data.attributes.end() || i->name!=name)
 		throw key_error(name);
 	return *i;
 }
@@ -751,78 +312,15 @@ int Program::get_attribute_location(const string &name) const
 	if(name[name.size()-1]==']')
 		throw invalid_argument("Program::get_attribute_location");
 
-	vector<AttributeInfo>::const_iterator i = lower_bound_member(attributes, name, &AttributeInfo::name);
-	return i!=attributes.end() && i->name==name ? i->location : -1;
-}
-
-void Program::set_debug_name(const string &name)
-{
-#ifdef DEBUG
-	debug_name = name;
-	if(KHR_debug)
-	{
-		glObjectLabel(GL_PROGRAM, id, name.size(), name.c_str());
-		for(unsigned i=0; i<MAX_STAGES; ++i)
-			if(stage_ids[i])
-				set_stage_debug_name(stage_ids[i], static_cast<Stage>(i));
-	}
-#else
-	(void)name;
-#endif
-}
-
-void Program::set_stage_debug_name(unsigned stage_id, Stage type)
-{
-#ifdef DEBUG
-	static const char *const suffixes[] = { " [VS]", " [GS]", " [FS]" };
-	string name = debug_name+suffixes[type];
-	glObjectLabel(GL_SHADER, stage_id, name.size(), name.c_str());
-#else
-	(void)stage_id; (void)type;
-#endif
+	auto i = lower_bound_member(reflect_data.attributes, name, &ReflectData::AttributeInfo::name);
+	return i!=reflect_data.attributes.end() && i->name==name ? i->location : -1;
 }
 
 
-Program::UniformInfo::UniformInfo():
-	block(0),
-	location(-1),
-	array_size(0),
-	array_stride(0),
-	matrix_stride(0),
-	type(VOID),
-	binding(-1)
-{ }
-
-
-Program::UniformBlockInfo::UniformBlockInfo():
-	data_size(0),
-	bind_point(-1),
-	layout_hash(0)
-{ }
-
-
-Program::AttributeInfo::AttributeInfo():
-	location(-1),
-	array_size(0),
-	type(VOID)
-{ }
-
-
 Program::Loader::Loader(Program &p, Collection &c):
 	DataFile::CollectionObjectLoader<Program>(p, &c)
 {
-	add("module",          &Loader::module);
-
-	// Deprecated
-	add("attribute",       &Loader::attribute);
-	add("fragment_shader", &Loader::fragment_shader);
-	add("geometry_shader", &Loader::geometry_shader);
-	add("vertex_shader",   &Loader::vertex_shader);
-}
-
-void Program::Loader::finish()
-{
-	obj.link();
+	add("module", &Loader::module);
 }
 
 void Program::Loader::module(const string &n)
@@ -833,29 +331,6 @@ void Program::Loader::module(const string &n)
 	obj.add_stages(get_collection().get<Module>(n), spec_values);
 }
 
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-void Program::Loader::attribute(unsigned i, const string &n)
-{
-	obj.bind_attribute(i, n);
-}
-
-void Program::Loader::fragment_shader(const string &src)
-{
-	obj.attach_shader_owned(new FragmentShader(src));
-}
-
-void Program::Loader::geometry_shader(const string &src)
-{
-	obj.attach_shader_owned(new GeometryShader(src));
-}
-
-void Program::Loader::vertex_shader(const string &src)
-{
-	obj.attach_shader_owned(new VertexShader(src));
-}
-#pragma GCC diagnostic pop
-
 
 DataFile::Loader::ActionMap Program::SpecializationLoader::shared_actions;