#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>
static Require _req(ARB_shader_objects);
id = glCreateProgram();
+ fill(stage_ids, stage_ids+MAX_STAGES, 0);
module = 0;
- bindings = 0;
+ transient = 0;
linked = false;
}
Program::~Program()
{
- for(vector<unsigned>::iterator i=stage_ids.begin(); i!=stage_ids.end(); ++i)
- glDeleteShader(*i);
+ 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(!stage_ids.empty())
+ if(has_stages())
throw invalid_operation("Program::add_stages");
switch(mod.get_format())
}
}
-unsigned Program::add_stage(GLenum type)
+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 GL_VERTEX_SHADER: { static Require _req(ARB_vertex_shader); } break;
- case GL_GEOMETRY_SHADER: { static Require _req(ARB_geometry_shader4); } break;
- case GL_FRAGMENT_SHADER: { static Require _req(ARB_fragment_shader); } break;
+ 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");
}
- unsigned stage_id = glCreateShader(type);
- stage_ids.push_back(stage_id);
+ 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;
}
unsigned stage_id = 0;
switch(*i)
{
- case SL::Stage::VERTEX: stage_id = add_stage(GL_VERTEX_SHADER); break;
- case SL::Stage::GEOMETRY: stage_id = add_stage(GL_GEOMETRY_SHADER); break;
- case SL::Stage::FRAGMENT: stage_id = add_stage(GL_FRAGMENT_SHADER); break;
+ 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");
}
compile_glsl_stage(stage_id);
}
- if(!bindings)
- bindings = new Bindings;
- bindings->textures = compiler.get_texture_bindings();
- bindings->blocks = compiler.get_uniform_block_bindings();
+ 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)
module = &mod;
const vector<SpirVModule::EntryPoint> &entry_points = mod.get_entry_points();
- std::set<SpirVModule::Stage> stages;
+ 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)
{
- if(stages.count(i->stage))
- throw invalid_argument("Program::add_spirv_stages");
-
+ unsigned stage_id = 0;
switch(i->stage)
{
- case SpirVModule::VERTEX: add_stage(GL_VERTEX_SHADER); break;
- case SpirVModule::GEOMETRY: add_stage(GL_GEOMETRY_SHADER); break;
- case SpirVModule::FRAGMENT: add_stage(GL_FRAGMENT_SHADER); break;
+ 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");
}
- stages.insert(i->stage);
+ used_stage_ids[n_stages++] = stage_id;
}
const vector<UInt32> &code = mod.get_code();
- glShaderBinary(stage_ids.size(), &stage_ids[0], GL_SHADER_BINARY_FORMAT_SPIR_V, &code[0], code.size()*4);
+ glShaderBinary(n_stages, used_stage_ids, GL_SHADER_BINARY_FORMAT_SPIR_V, &code[0], code.size()*4);
- const vector<SpirVModule::SpecConstant> &spec_consts = mod.get_spec_constants();
+ 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::SpecConstant>::const_iterator i=spec_consts.begin(); i!=spec_consts.end(); ++i)
+ 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())
{
spec_id_array.push_back(i->constant_id);
spec_value_array.push_back(j->second);
+ transient->spec_values[i->constant_id] = j->second;
}
}
vector<SpirVModule::EntryPoint>::const_iterator j=entry_points.begin();
- for(vector<unsigned>::const_iterator i=stage_ids.begin(); i!=stage_ids.end(); ++i, ++j)
- glSpecializeShader(*i, j->name.c_str(), spec_id_array.size(), &spec_id_array[0], &spec_value_array[0]);
+ 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
unsigned shader_id = shader.steal_id();
if(!shader_id)
throw invalid_argument("Program::attach_shader");
- stage_ids.push_back(shader_id);
+
+ 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::link()
{
- if(stage_ids.empty())
+ if(!has_stages())
throw invalid_operation("Program::link");
uniforms.clear();
{
query_uniforms();
query_attributes();
- if(bindings)
+ if(transient)
{
for(unsigned i=0; i<uniform_blocks.size(); ++i)
{
- map<string, unsigned>::const_iterator j = bindings->blocks.find(uniform_blocks[i].name);
- if(j!=bindings->blocks.end())
+ 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;
}
Conditional<BindRestore> _bind(!ARB_separate_shader_objects, this);
- for(map<string, unsigned>::const_iterator i=bindings->textures.begin(); i!=bindings->textures.end(); ++i)
+ 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)
glUniform1i(location, i->second);
}
}
-
- delete bindings;
- bindings = 0;
}
}
else if(module->get_format()==Module::SPIR_V)
collect_attributes();
}
+ delete transient;
+ transient = 0;
+
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)
unsigned offset = base_offset+i->offset;
if(i->struct_type)
{
- if(i->array_size)
+ unsigned array_size = i->array_size;
+ if(i->array_size_spec)
{
- for(unsigned j=0; j<i->array_size; ++j, offset+=i->array_stride)
+ 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)
+ {
+ 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);
}
else
glUseProgram(0);
}
+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::UniformInfo::UniformInfo():
block(0),