-#include <cstring>
#include <msp/core/algorithm.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 "error.h"
#include "program.h"
-#include "glsl/compiler.h"
using namespace std;
-namespace {
-
-template<typename T, void (*&func)(GLint, GLsizei, const T *)>
-void uniform_wrapper(unsigned index, unsigned count, const void *data)
-{
- func(index, count, static_cast<const T *>(data));
-}
-
-template<typename T, void (*&func)(GLint, GLsizei, GLboolean, const T *)>
-void uniform_matrix_wrapper(unsigned index, unsigned count, const void *data)
-{
- func(index, count, false, static_cast<const T *>(data));
-}
-
-}
-
namespace Msp {
namespace GL {
-Program::Program()
-{
- init();
-}
-
Program::Program(const Module &mod, const map<string, int> &spec_values)
{
- init();
add_stages(mod, spec_values);
}
-void Program::init()
-{
- static Require _req(ARB_shader_objects);
-
- id = glCreateProgram();
- fill(stage_ids, stage_ids+MAX_STAGES, 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)
{
if(has_stages())
throw invalid_argument("Program::add_stages");
}
- finalize(mod, transient);
-}
-
-bool Program::has_stages() const
-{
- for(unsigned i=0; i<MAX_STAGES; ++i)
- if(stage_ids[i])
- return true;
- return false;
-}
-
-unsigned Program::add_stage(Stage type)
-{
- GLenum gl_type;
- switch(type)
- {
- 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");
- }
-
- 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);
-
-#ifdef DEBUG
- if(!debug_name.empty() && KHR_debug)
- set_stage_debug_name(stage_id, type);
-#endif
-
- return stage_id;
-}
-
-void Program::add_glsl_stages(const GlslModule &mod, const map<string, int> &spec_values, TransientData &transient)
-{
- 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();
- if(stages.empty())
- throw invalid_argument("Program::add_glsl_stages");
-
- for(SL::Stage::Type st: stages)
- {
- unsigned stage_id = 0;
- switch(st)
- {
- 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(st);
- const char *src_ptr = stage_src.data();
- int src_len = stage_src.size();
- glShaderSource(stage_id, 1, &src_ptr, &src_len);
-
- if(st==SL::Stage::VERTEX)
- {
- for(const auto &kvp: compiler.get_vertex_attributes())
- glBindAttribLocation(id, kvp.second, kvp.first.c_str());
- }
-
- if(st==SL::Stage::FRAGMENT && EXT_gpu_shader4)
- {
- for(const auto &kvp: compiler.get_fragment_outputs())
- glBindFragDataLocation(id, kvp.second, kvp.first.c_str());
- }
-
- compile_glsl_stage(mod, stage_id);
- }
-
- transient.textures = compiler.get_texture_bindings();
- transient.blocks = compiler.get_uniform_block_bindings();
-}
-
-void Program::compile_glsl_stage(const GlslModule &mod, unsigned stage_id)
-{
- glCompileShader(stage_id);
- int status = 0;
- glGetShaderiv(stage_id, GL_COMPILE_STATUS, &status);
-
- int info_log_len = 0;
- glGetShaderiv(stage_id, GL_INFO_LOG_LENGTH, &info_log_len);
- 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);
- info_log = mod.get_source_map().translate_errors(info_log);
-
- if(!status)
- 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, TransientData &transient)
-{
- static Require _req(ARB_gl_spirv);
- static Require _req2(ARB_ES2_compatibility);
-
- unsigned n_stages = 0;
- unsigned used_stage_ids[MAX_STAGES];
- for(const SpirVModule::EntryPoint &e: mod.get_entry_points())
- {
- unsigned stage_id = 0;
- switch(e.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;
- }
-
- if(!n_stages)
- throw invalid_argument("Program::add_spirv_stages");
-
- const vector<uint32_t> &code = mod.get_code();
- glShaderBinary(n_stages, used_stage_ids, GL_SHADER_BINARY_FORMAT_SPIR_V, &code[0], code.size()*4);
-
- 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(const SpirVModule::Constant &c: spec_consts)
- {
- auto i = spec_values.find(c.name);
- if(i!=spec_values.end())
- {
- spec_id_array.push_back(c.constant_id);
- spec_value_array.push_back(i->second);
- transient.spec_values[c.constant_id] = i->second;
- }
- }
-
- auto j = mod.get_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]);
-}
-
-void Program::finalize(const Module &mod, const TransientData &transient)
-{
reflect_data = ReflectData();
- glLinkProgram(id);
- int status = 0;
- glGetProgramiv(id, GL_LINK_STATUS, &status);
- linked = status;
-
- int info_log_len = 0;
- glGetProgramiv(id, GL_INFO_LOG_LENGTH, &info_log_len);
- 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(mod.get_format()==Module::GLSL)
- info_log = static_cast<const GlslModule &>(mod).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
+ finalize(mod);
if(mod.get_format()==Module::GLSL)
{
query_uniforms();
query_attributes();
- for(unsigned i=0; i<reflect_data.uniform_blocks.size(); ++i)
- {
- auto j = transient.blocks.find(reflect_data.uniform_blocks[i].name);
- if(j!=transient.blocks.end())
- {
- glUniformBlockBinding(id, i, j->second);
- reflect_data.uniform_blocks[i].bind_point = j->second;
- }
- }
-
- if(!ARB_separate_shader_objects)
- glUseProgram(id);
- for(const auto &kvp: transient.textures)
- {
- int location = get_uniform_location(kvp.first);
- if(location>=0)
- {
- if(ARB_separate_shader_objects)
- glProgramUniform1i(id, location, kvp.second);
- else
- glUniform1i(location, kvp.second);
- }
- }
+ apply_bindings(transient);
}
else if(mod.get_format()==Module::SPIR_V)
{
require_type(a.type);
}
-void Program::query_uniforms()
-{
- unsigned count = 0;
- glGetProgramiv(id, GL_ACTIVE_UNIFORMS, reinterpret_cast<int *>(&count));
- reflect_data.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;
-
- reflect_data.uniforms.push_back(ReflectData::UniformInfo());
- ReflectData::UniformInfo &info = reflect_data.uniforms.back();
- info.name = name;
- info.tag = name;
- info.array_size = size;
- info.type = from_gl_type(type);
- uniform_names[i] = name;
- }
- }
-
- sort_member(reflect_data.uniforms, &ReflectData::UniformInfo::tag);
-
- if(ARB_uniform_buffer_object)
- {
- vector<ReflectData::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(reflect_data.uniforms, Tag(uniform_names[i]), &ReflectData::UniformInfo::tag);
- query_uniform_blocks(uniforms_by_index);
- }
-
- reflect_data.uniform_blocks.push_back(ReflectData::UniformBlockInfo());
- ReflectData::UniformBlockInfo &default_block = reflect_data.uniform_blocks.back();
-
- for(ReflectData::UniformInfo &u: reflect_data.uniforms)
- if(!u.block)
- {
- u.location = glGetUniformLocation(id, u.name.c_str());
- u.block = &default_block;
- u.array_stride = get_type_size(u.type);
- if(is_matrix(u.type))
- u.matrix_stride = get_type_size(get_matrix_column_type(u.type));
- default_block.uniforms.push_back(&u);
-
- if(u.location>=0)
- {
- UniformCall::FuncPtr func = 0;
- if(u.type==FLOAT)
- func = &uniform_wrapper<float, glUniform1fv>;
- else if(u.type==FLOAT_VEC2)
- func = &uniform_wrapper<float, glUniform2fv>;
- else if(u.type==FLOAT_VEC3)
- func = &uniform_wrapper<float, glUniform3fv>;
- else if(u.type==FLOAT_VEC4)
- func = &uniform_wrapper<float, glUniform4fv>;
- else if(u.type==INT)
- func = &uniform_wrapper<int, glUniform1iv>;
- else if(u.type==INT_VEC2)
- func = &uniform_wrapper<int, glUniform2iv>;
- else if(u.type==INT_VEC3)
- func = &uniform_wrapper<int, glUniform3iv>;
- else if(u.type==INT_VEC4)
- func = &uniform_wrapper<int, glUniform4iv>;
- else if(u.type==FLOAT_MAT2)
- func = &uniform_matrix_wrapper<float, glUniformMatrix2fv>;
- else if(u.type==FLOAT_MAT3)
- func = &uniform_matrix_wrapper<float, glUniformMatrix3fv>;
- else if(u.type==FLOAT_MAT4)
- func = &uniform_matrix_wrapper<float, glUniformMatrix4fv>;
- else if(u.type==FLOAT_MAT2x3)
- func = &uniform_matrix_wrapper<float, glUniformMatrix2x3fv>;
- else if(u.type==FLOAT_MAT3x2)
- func = &uniform_matrix_wrapper<float, glUniformMatrix3x2fv>;
- else if(u.type==FLOAT_MAT2x4)
- func = &uniform_matrix_wrapper<float, glUniformMatrix2x4fv>;
- else if(u.type==FLOAT_MAT4x2)
- func = &uniform_matrix_wrapper<float, glUniformMatrix4x2fv>;
- else if(u.type==FLOAT_MAT3x4)
- func = &uniform_matrix_wrapper<float, glUniformMatrix3x4fv>;
- else if(u.type==FLOAT_MAT4x3)
- func = &uniform_matrix_wrapper<float, glUniformMatrix4x3fv>;
- else if(is_image(u.type))
- glGetUniformiv(id, u.location, &u.binding);
-
- if(func)
- uniform_calls.push_back(UniformCall(u.location, u.array_size, func));
- }
- }
-
- default_block.sort_uniforms();
- if(!default_block.uniforms.empty())
- {
- const ReflectData::UniformInfo &uni = *default_block.uniforms.back();
- default_block.data_size = uni.location*16+uni.array_size*get_type_size(uni.type);
- }
- default_block.update_layout_hash();
- reflect_data.update_layout_hash();
-}
-
-void Program::query_uniform_blocks(const vector<ReflectData::UniformInfo *> &uniforms_by_index)
-{
- unsigned count = 0;
- glGetProgramiv(id, GL_ACTIVE_UNIFORM_BLOCKS, reinterpret_cast<int *>(&count));
- // Reserve an extra index for the default block
- reflect_data.uniform_blocks.reserve(count+1);
- for(unsigned i=0; i<count; ++i)
- {
- char name[128];
- int len;
- glGetActiveUniformBlockName(id, i, sizeof(name), &len, name);
- reflect_data.uniform_blocks.push_back(ReflectData::UniformBlockInfo());
- ReflectData::UniformBlockInfo &info = reflect_data.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(int j: indices)
- {
- 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(int j: indices)
- 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(int j: indices)
- {
- DataType t = uniforms_by_index[j]->type;
- if(is_matrix(t))
- query_indices.push_back(j);
- }
- if(!query_indices.empty())
- {
- 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];
- }
-
- info.sort_uniforms();
- info.update_layout_hash();
- }
-}
-
-void Program::query_attributes()
-{
- unsigned count = 0;
- glGetProgramiv(id, GL_ACTIVE_ATTRIBUTES, reinterpret_cast<int *>(&count));
- reflect_data.attributes.reserve(count);
- for(unsigned i=0; i<count; ++i)
- {
- 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;
-
- reflect_data.attributes.push_back(ReflectData::AttributeInfo());
- ReflectData::AttributeInfo &info = reflect_data.attributes.back();
- info.name = name;
- info.location = glGetAttribLocation(id, name);
- info.array_size = size;
- info.type = from_gl_type(type);
- }
- }
-}
-
void Program::collect_uniforms(const SpirVModule &mod, const map<unsigned, int> &spec_values)
{
// Prepare the default block
return i!=reflect_data.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
-}
-
Program::Loader::Loader(Program &p, Collection &c):
DataFile::CollectionObjectLoader<Program>(p, &c)
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