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Add generator ID for the SPIR-V compiler
[libs/gl.git] / source / core / program.cpp
1 #include <cstring>
2 #include <set>
3 #include <msp/core/algorithm.h>
4 #include <msp/core/hash.h>
5 #include <msp/core/maputils.h>
6 #include <msp/core/raii.h>
7 #include <msp/gl/extensions/arb_es2_compatibility.h>
8 #include <msp/gl/extensions/arb_fragment_shader.h>
9 #include <msp/gl/extensions/arb_gl_spirv.h>
10 #include <msp/gl/extensions/arb_geometry_shader4.h>
11 #include <msp/gl/extensions/arb_separate_shader_objects.h>
12 #include <msp/gl/extensions/arb_shader_objects.h>
13 #include <msp/gl/extensions/arb_uniform_buffer_object.h>
14 #include <msp/gl/extensions/arb_vertex_shader.h>
15 #include <msp/gl/extensions/ext_gpu_shader4.h>
16 #include <msp/gl/extensions/nv_non_square_matrices.h>
17 #include <msp/io/print.h>
18 #include <msp/strings/format.h>
19 #include "buffer.h"
20 #include "error.h"
21 #include "misc.h"
22 #include "program.h"
23 #include "resources.h"
24 #include "shader.h"
25 #include "glsl/compiler.h"
26
27 using namespace std;
28
29 namespace Msp {
30 namespace GL {
31
32 Program::Program()
33 {
34         init();
35 }
36
37 Program::Program(const string &source)
38 {
39         init();
40
41         GlslModule mod;
42         mod.set_source(source);
43         add_stages(mod);
44
45         link();
46         module = 0;
47 }
48
49 Program::Program(const string &vert, const string &frag)
50 {
51         init();
52
53 #pragma GCC diagnostic push
54 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
55         attach_shader_owned(new VertexShader(vert));
56         attach_shader_owned(new FragmentShader(frag));
57 #pragma GCC diagnostic pop
58         link();
59 }
60
61 Program::Program(const Module &mod, const map<string, int> &spec_values)
62 {
63         init();
64         add_stages(mod, spec_values);
65         link();
66 }
67
68 void Program::init()
69 {
70         static Require _req(ARB_shader_objects);
71
72         id = glCreateProgram();
73         module = 0;
74         bindings = 0;
75         linked = false;
76 }
77
78 Program::~Program()
79 {
80         for(vector<unsigned>::iterator i=stage_ids.begin(); i!=stage_ids.end(); ++i)
81                 glDeleteShader(*i);
82         glDeleteProgram(id);
83 }
84
85 void Program::add_stages(const Module &mod, const map<string, int> &spec_values)
86 {
87         if(!stage_ids.empty())
88                 throw invalid_operation("Program::add_stages");
89
90         switch(mod.get_format())
91         {
92         case Module::GLSL: return add_glsl_stages(static_cast<const GlslModule &>(mod), spec_values);
93         case Module::SPIR_V: return add_spirv_stages(static_cast<const SpirVModule &>(mod), spec_values);
94         default: throw invalid_argument("Program::add_stages");
95         }
96 }
97
98 unsigned Program::add_stage(GLenum type)
99 {
100         switch(type)
101         {
102         case GL_VERTEX_SHADER: { static Require _req(ARB_vertex_shader); } break;
103         case GL_GEOMETRY_SHADER: { static Require _req(ARB_geometry_shader4); } break;
104         case GL_FRAGMENT_SHADER: { static Require _req(ARB_fragment_shader); } break;
105         default: throw invalid_argument("Program::add_stage");
106         }
107
108         unsigned stage_id = glCreateShader(type);
109         stage_ids.push_back(stage_id);
110         glAttachShader(id, stage_id);
111
112         return stage_id;
113 }
114
115 void Program::add_glsl_stages(const GlslModule &mod, const map<string, int> &spec_values)
116 {
117         module = &mod;
118
119         SL::Compiler compiler;
120         compiler.set_source(mod.get_prepared_source(), "<module>");
121         compiler.specialize(spec_values);
122         compiler.compile(SL::Compiler::PROGRAM);
123 #ifdef DEBUG
124         string diagnostics = compiler.get_diagnostics();
125         if(!diagnostics.empty())
126                 IO::print("Program diagnostics:\n%s\n", diagnostics);
127 #endif
128
129         vector<SL::Stage::Type> stages = compiler.get_stages();
130         for(vector<SL::Stage::Type>::const_iterator i=stages.begin(); i!=stages.end(); ++i)
131         {
132                 unsigned stage_id = 0;
133                 switch(*i)
134                 {
135                 case SL::Stage::VERTEX: stage_id = add_stage(GL_VERTEX_SHADER); break;
136                 case SL::Stage::GEOMETRY: stage_id = add_stage(GL_GEOMETRY_SHADER); break;
137                 case SL::Stage::FRAGMENT: stage_id = add_stage(GL_FRAGMENT_SHADER); break;
138                 default: throw invalid_operation("Program::add_glsl_stages");
139                 }
140
141                 string stage_src = compiler.get_stage_glsl(*i);
142                 const char *src_ptr = stage_src.data();
143                 int src_len = stage_src.size();
144                 glShaderSource(stage_id, 1, &src_ptr, &src_len);
145
146                 if(*i==SL::Stage::VERTEX)
147                 {
148                         const map<string, unsigned> &attribs = compiler.get_vertex_attributes();
149                         for(map<string, unsigned>::const_iterator j=attribs.begin(); j!=attribs.end(); ++j)
150                                 glBindAttribLocation(id, j->second, j->first.c_str());
151                 }
152
153                 if(*i==SL::Stage::FRAGMENT && EXT_gpu_shader4)
154                 {
155                         const map<string, unsigned> &frag_outs = compiler.get_fragment_outputs();
156                         for(map<string, unsigned>::const_iterator j=frag_outs.begin(); j!=frag_outs.end(); ++j)
157                                 glBindFragDataLocation(id, j->second, j->first.c_str());
158                 }
159
160                 compile_glsl_stage(stage_id);
161         }
162
163         if(!bindings)
164                 bindings = new Bindings;
165         bindings->textures = compiler.get_texture_bindings();
166         bindings->blocks = compiler.get_uniform_block_bindings();
167 }
168
169 void Program::compile_glsl_stage(unsigned stage_id)
170 {
171         glCompileShader(stage_id);
172         bool compiled = get_shader_i(stage_id, GL_COMPILE_STATUS);
173
174         GLsizei info_log_len = get_shader_i(stage_id, GL_INFO_LOG_LENGTH);
175         string info_log(info_log_len+1, 0);
176         glGetShaderInfoLog(stage_id, info_log_len+1, &info_log_len, &info_log[0]);
177         info_log.erase(info_log_len);
178         if(module && module->get_format()==Module::GLSL)
179                 info_log = static_cast<const GlslModule *>(module)->get_source_map().translate_errors(info_log);
180
181         if(!compiled)
182                 throw compile_error(info_log);
183 #ifdef DEBUG
184         if(!info_log.empty())
185                 IO::print("Shader compile info log:\n%s", info_log);
186 #endif
187 }
188
189 void Program::add_spirv_stages(const SpirVModule &mod, const map<string, int> &spec_values)
190 {
191         static Require _req(ARB_gl_spirv);
192         static Require _req2(ARB_ES2_compatibility);
193
194         module = &mod;
195
196         const vector<SpirVModule::EntryPoint> &entry_points = mod.get_entry_points();
197         std::set<SpirVModule::Stage> stages;
198         for(vector<SpirVModule::EntryPoint>::const_iterator i=entry_points.begin(); i!=entry_points.end(); ++i)
199         {
200                 if(stages.count(i->stage))
201                         throw invalid_argument("Program::add_spirv_stages");
202
203                 switch(i->stage)
204                 {
205                 case SpirVModule::VERTEX: add_stage(GL_VERTEX_SHADER); break;
206                 case SpirVModule::GEOMETRY: add_stage(GL_GEOMETRY_SHADER); break;
207                 case SpirVModule::FRAGMENT: add_stage(GL_FRAGMENT_SHADER); break;
208                 default: throw invalid_operation("Program::add_spirv_stages");
209                 }
210
211                 stages.insert(i->stage);
212         }
213
214         const vector<UInt32> &code = mod.get_code();
215         glShaderBinary(stage_ids.size(), &stage_ids[0], GL_SHADER_BINARY_FORMAT_SPIR_V, &code[0], code.size()*4);
216
217         const vector<SpirVModule::SpecConstant> &spec_consts = mod.get_spec_constants();
218         vector<unsigned> spec_id_array;
219         vector<unsigned> spec_value_array;
220         spec_id_array.reserve(spec_consts.size());
221         spec_value_array.reserve(spec_consts.size());
222         for(vector<SpirVModule::SpecConstant>::const_iterator i=spec_consts.begin(); i!=spec_consts.end(); ++i)
223         {
224                 map<string, int>::const_iterator j = spec_values.find(i->name);
225                 if(j!=spec_values.end())
226                 {
227                         spec_id_array.push_back(i->constant_id);
228                         spec_value_array.push_back(j->second);
229                 }
230         }
231
232         vector<SpirVModule::EntryPoint>::const_iterator j=entry_points.begin();
233         for(vector<unsigned>::const_iterator i=stage_ids.begin(); i!=stage_ids.end(); ++i, ++j)
234                 glSpecializeShader(*i, j->name.c_str(), spec_id_array.size(), &spec_id_array[0], &spec_value_array[0]);
235 }
236
237 #pragma GCC diagnostic push
238 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
239 void Program::attach_shader(Shader &shader)
240 {
241         unsigned shader_id = shader.steal_id();
242         if(!shader_id)
243                 throw invalid_argument("Program::attach_shader");
244         stage_ids.push_back(shader_id);
245         compile_glsl_stage(shader_id);
246 }
247
248 void Program::attach_shader_owned(Shader *shader)
249 {
250         attach_shader(*shader);
251         delete shader;
252 }
253
254 void Program::detach_shader(Shader &)
255 {
256 }
257
258 const vector<Shader *> &Program::get_attached_shaders() const
259 {
260         static vector<Shader *> dummy;
261         return dummy;
262 }
263
264 void Program::bind_attribute(unsigned index, const string &name)
265 {
266         static Require _req(ARB_vertex_shader);
267         glBindAttribLocation(id, index, name.c_str());
268 }
269
270 void Program::bind_attribute(VertexAttribute attr, const string &name)
271 {
272         bind_attribute(get_attribute_semantic(attr), name);
273 }
274
275 void Program::bind_fragment_data(unsigned index, const string &name)
276 {
277         static Require _req(EXT_gpu_shader4);
278         glBindFragDataLocation(id, index, name.c_str());
279 }
280 #pragma GCC diagnostic pop
281
282 void Program::link()
283 {
284         if(stage_ids.empty())
285                 throw invalid_operation("Program::link");
286
287         uniforms.clear();
288         uniform_blocks.clear();
289         attributes.clear();
290
291         glLinkProgram(id);
292         linked = get_program_i(id, GL_LINK_STATUS);
293
294         GLsizei info_log_len = get_program_i(id, GL_INFO_LOG_LENGTH);
295         string info_log(info_log_len+1, 0);
296         glGetProgramInfoLog(id, info_log_len+1, &info_log_len, &info_log[0]);
297         info_log.erase(info_log_len);
298         if(module && module->get_format()==Module::GLSL)
299                 info_log = static_cast<const GlslModule *>(module)->get_source_map().translate_errors(info_log);
300
301         if(!linked)
302                 throw compile_error(info_log);
303 #ifdef DEBUG
304         if(!info_log.empty())
305                 IO::print("Program link info log:\n%s", info_log);
306 #endif
307
308         if(module->get_format()==Module::GLSL)
309         {
310                 query_uniforms();
311                 query_attributes();
312                 if(bindings)
313                 {
314                         for(unsigned i=0; i<uniform_blocks.size(); ++i)
315                         {
316                                 map<string, unsigned>::const_iterator j = bindings->blocks.find(uniform_blocks[i].name);
317                                 if(j!=bindings->blocks.end())
318                                 {
319                                         glUniformBlockBinding(id, i, j->second);
320                                         uniform_blocks[i].bind_point = j->second;
321                                 }
322                         }
323
324                         Conditional<BindRestore> _bind(!ARB_separate_shader_objects, this);
325                         for(map<string, unsigned>::const_iterator i=bindings->textures.begin(); i!=bindings->textures.end(); ++i)
326                         {
327                                 int location = get_uniform_location(i->first);
328                                 if(location>=0)
329                                 {
330                                         if(ARB_separate_shader_objects)
331                                                 glProgramUniform1i(id, location, i->second);
332                                         else
333                                                 glUniform1i(location, i->second);
334                                 }
335                         }
336
337                         delete bindings;
338                         bindings = 0;
339                 }
340         }
341         else if(module->get_format()==Module::SPIR_V)
342         {
343                 collect_uniforms();
344                 collect_attributes();
345         }
346
347         for(vector<UniformInfo>::const_iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
348                 require_type(i->type);
349         for(vector<AttributeInfo>::const_iterator i=attributes.begin(); i!=attributes.end(); ++i)
350                 require_type(i->type);
351 }
352
353 void Program::query_uniforms()
354 {
355         unsigned count = get_program_i(id, GL_ACTIVE_UNIFORMS);
356         uniforms.reserve(count);
357         vector<string> uniform_names(count);
358         for(unsigned i=0; i<count; ++i)
359         {
360                 char name[128];
361                 int len = 0;
362                 int size;
363                 GLenum type;
364                 glGetActiveUniform(id, i, sizeof(name), &len, &size, &type, name);
365                 if(len && strncmp(name, "gl_", 3))
366                 {
367                         /* Some implementations report the first element of a uniform array,
368                         others report just the name of the array itself. */
369                         if(len>3 && !strcmp(name+len-3, "[0]"))
370                                 name[len-3] = 0;
371
372                         uniforms.push_back(UniformInfo());
373                         UniformInfo &info = uniforms.back();
374                         info.name = name;
375                         info.tag = name;
376                         info.array_size = size;
377                         info.type = from_gl_type(type);
378                         uniform_names[i] = name;
379                 }
380         }
381
382         sort_member(uniforms, &UniformInfo::tag);
383
384         if(ARB_uniform_buffer_object)
385         {
386                 vector<UniformInfo *> uniforms_by_index(count);
387                 for(unsigned i=0; i<count; ++i)
388                         if(!uniform_names[i].empty())
389                                 // The element is already known to be present
390                                 uniforms_by_index[i] = &*lower_bound_member(uniforms, Tag(uniform_names[i]), &UniformInfo::tag);
391                 query_uniform_blocks(uniforms_by_index);
392         }
393
394         uniform_blocks.push_back(UniformBlockInfo());
395         UniformBlockInfo &default_block = uniform_blocks.back();
396
397         for(vector<UniformInfo>::iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
398                 if(!i->block)
399                 {
400                         i->location = glGetUniformLocation(id, i->name.c_str());
401                         i->block = &default_block;
402                         default_block.uniforms.push_back(&*i);
403
404                         if(is_image(i->type) && i->location>=0)
405                                 glGetUniformiv(id, i->location, &i->binding);
406                 }
407
408         default_block.layout_hash = compute_layout_hash(default_block.uniforms);
409
410         update_layout_hash();
411 }
412
413 void Program::query_uniform_blocks(const vector<UniformInfo *> &uniforms_by_index)
414 {
415         unsigned count = get_program_i(id, GL_ACTIVE_UNIFORM_BLOCKS);
416         // Reserve an extra index for the default block
417         uniform_blocks.reserve(count+1);
418         for(unsigned i=0; i<count; ++i)
419         {
420                 char name[128];
421                 int len;
422                 glGetActiveUniformBlockName(id, i, sizeof(name), &len, name);
423                 uniform_blocks.push_back(UniformBlockInfo());
424                 UniformBlockInfo &info = uniform_blocks.back();
425                 info.name = name;
426
427                 int value;
428                 glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_DATA_SIZE, &value);
429                 info.data_size = value;
430
431                 glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_BINDING, &value);
432                 info.bind_point = value;
433
434                 glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS, &value);
435                 vector<int> indices(value);
436                 glGetActiveUniformBlockiv(id, i, GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES, &indices[0]);
437                 for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
438                 {
439                         if(!uniforms_by_index[*j])
440                                 throw logic_error("Program::link");
441                         info.uniforms.push_back(uniforms_by_index[*j]);
442                         uniforms_by_index[*j]->block = &info;
443                 }
444
445                 vector<unsigned> query_indices(indices.begin(), indices.end());
446                 vector<int> values(indices.size());
447                 glGetActiveUniformsiv(id, query_indices.size(), &query_indices[0], GL_UNIFORM_OFFSET, &values[0]);
448                 for(unsigned j=0; j<indices.size(); ++j)
449                         uniforms_by_index[indices[j]]->offset = values[j];
450
451                 query_indices.clear();
452                 for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
453                         if(uniforms_by_index[*j]->array_size>1)
454                                 query_indices.push_back(*j);
455                 if(!query_indices.empty())
456                 {
457                         glGetActiveUniformsiv(id, query_indices.size(), &query_indices[0], GL_UNIFORM_ARRAY_STRIDE, &values[0]);
458                         for(unsigned j=0; j<query_indices.size(); ++j)
459                                 uniforms_by_index[query_indices[j]]->array_stride = values[j];
460                 }
461
462                 query_indices.clear();
463                 for(vector<int>::iterator j=indices.begin(); j!=indices.end(); ++j)
464                 {
465                         DataType t = uniforms_by_index[*j]->type;
466                         if(is_matrix(t))
467                                 query_indices.push_back(*j);
468                 }
469                 if(!query_indices.empty())
470                 {
471                         glGetActiveUniformsiv(id, query_indices.size(), &query_indices[0], GL_UNIFORM_MATRIX_STRIDE, &values[0]);
472                         for(unsigned j=0; j<query_indices.size(); ++j)
473                                 uniforms_by_index[query_indices[j]]->matrix_stride = values[j];
474                 }
475
476                 sort(info.uniforms, uniform_location_compare);
477                 info.layout_hash = compute_layout_hash(info.uniforms);
478         }
479 }
480
481 void Program::query_attributes()
482 {
483         unsigned count = get_program_i(id, GL_ACTIVE_ATTRIBUTES);
484         attributes.reserve(count);
485         for(unsigned i=0; i<count; ++i)
486         {
487                 char name[128];
488                 int len = 0;
489                 int size;
490                 GLenum type;
491                 glGetActiveAttrib(id, i, sizeof(name), &len, &size, &type, name);
492                 if(len && strncmp(name, "gl_", 3))
493                 {
494                         if(len>3 && !strcmp(name+len-3, "[0]"))
495                                 name[len-3] = 0;
496
497                         attributes.push_back(AttributeInfo());
498                         AttributeInfo &info = attributes.back();
499                         info.name = name;
500                         info.location = glGetAttribLocation(id, name);
501                         info.array_size = size;
502                         info.type = from_gl_type(type);
503                 }
504         }
505 }
506
507 void Program::collect_uniforms()
508 {
509         const SpirVModule &mod = static_cast<const SpirVModule &>(*module);
510
511         // Prepare the default block
512         uniform_blocks.push_back(UniformBlockInfo());
513         vector<vector<string> > block_uniform_names(1);
514
515         const vector<SpirVModule::Variable> &variables = mod.get_variables();
516         for(vector<SpirVModule::Variable>::const_iterator i=variables.begin(); i!=variables.end(); ++i)
517         {
518                 if(i->storage==SpirVModule::UNIFORM && i->struct_type)
519                 {
520                         uniform_blocks.push_back(UniformBlockInfo());
521                         UniformBlockInfo &info = uniform_blocks.back();
522                         info.name = i->struct_type->name;
523                         info.bind_point = i->binding;
524                         info.data_size = i->struct_type->size;
525
526                         string prefix;
527                         if(!i->name.empty())
528                                 prefix = i->struct_type->name+".";
529                         block_uniform_names.push_back(vector<string>());
530                         collect_block_uniforms(*i->struct_type, prefix, 0, block_uniform_names.back());
531                 }
532                 else if(i->storage==SpirVModule::UNIFORM_CONSTANT && i->location>=0)
533                 {
534                         block_uniform_names[0].push_back(i->name);
535                         uniforms.push_back(UniformInfo());
536                         UniformInfo &info = uniforms.back();
537                         info.name = i->name;
538                         info.tag = i->name;
539                         info.location = i->location;
540                         info.array_size = i->array_size;
541                         info.type = i->type;
542                 }
543         }
544
545         sort_member(uniforms, &UniformInfo::tag);
546
547         for(unsigned i=0; i<uniform_blocks.size(); ++i)
548         {
549                 UniformBlockInfo &block = uniform_blocks[i];
550                 const vector<string> &names = block_uniform_names[i];
551                 for(vector<string>::const_iterator j=names.begin(); j!=names.end(); ++j)
552                 {
553                         // The element is already known to be present
554                         UniformInfo &uni = *lower_bound_member(uniforms, Tag(*j), &UniformInfo::tag);
555                         block.uniforms.push_back(&uni);
556                         uni.block = &block;
557                 }
558                 sort(block.uniforms, uniform_location_compare);
559                 block.layout_hash = compute_layout_hash(block.uniforms);
560         }
561
562         update_layout_hash();
563 }
564
565 void Program::collect_block_uniforms(const SpirVModule::Structure &strct, const string &prefix, unsigned base_offset, vector<string> &uniform_names)
566 {
567         for(vector<SpirVModule::StructMember>::const_iterator i=strct.members.begin(); i!=strct.members.end(); ++i)
568         {
569                 unsigned offset = base_offset+i->offset;
570                 if(i->struct_type)
571                 {
572                         if(i->array_size)
573                         {
574                                 for(unsigned j=0; j<i->array_size; ++j, offset+=i->array_stride)
575                                         collect_block_uniforms(*i->struct_type, format("%s%s[%d].", prefix, i->name, j), offset, uniform_names);
576                         }
577                         else
578                                 collect_block_uniforms(*i->struct_type, prefix+i->name+".", offset, uniform_names);
579                 }
580                 else
581                 {
582                         string name = prefix+i->name;
583                         uniform_names.push_back(name);
584                         uniforms.push_back(UniformInfo());
585                         UniformInfo &info = uniforms.back();
586                         info.name = name;
587                         info.tag = name;
588                         info.offset = offset;
589                         info.array_size = i->array_size;
590                         info.array_stride = i->array_stride;
591                         info.matrix_stride = i->matrix_stride;
592                         info.type = i->type;
593                 }
594         }
595 }
596
597 void Program::collect_attributes()
598 {
599         const SpirVModule &mod = static_cast<const SpirVModule &>(*module);
600
601         const vector<SpirVModule::EntryPoint> &entry_points = mod.get_entry_points();
602         for(vector<SpirVModule::EntryPoint>::const_iterator i=entry_points.begin(); i!=entry_points.end(); ++i)
603                 if(i->stage==SpirVModule::VERTEX && i->name=="main")
604                 {
605                         for(vector<const SpirVModule::Variable *>::const_iterator j=i->globals.begin(); j!=i->globals.end(); ++j)
606                                 if((*j)->storage==SpirVModule::INPUT)
607                                 {
608                                         attributes.push_back(AttributeInfo());
609                                         AttributeInfo &info = attributes.back();
610                                         info.name = (*j)->name;
611                                         info.location = (*j)->location;
612                                         info.array_size = (*j)->array_size;
613                                         info.type = (*j)->type;
614                                 }
615                 }
616 }
617
618 void Program::update_layout_hash()
619 {
620         string layout_descriptor;
621         for(vector<UniformBlockInfo>::const_iterator i=uniform_blocks.begin(); i!=uniform_blocks.end(); ++i)
622                 layout_descriptor += format("%d:%x\n", i->bind_point, i->layout_hash);
623         uniform_layout_hash = hash32(layout_descriptor);
624 }
625
626 Program::LayoutHash Program::compute_layout_hash(const vector<const UniformInfo *> &uniforms)
627 {
628         string layout_descriptor;
629         for(vector<const UniformInfo *>::const_iterator i = uniforms.begin(); i!=uniforms.end(); ++i)
630                 layout_descriptor += format("%d:%s:%x:%d\n", (*i)->location, (*i)->name, (*i)->type, (*i)->array_size);
631         return hash32(layout_descriptor);
632 }
633
634 bool Program::uniform_location_compare(const UniformInfo *uni1, const UniformInfo *uni2)
635 {
636         return uni1->location<uni2->location;
637 }
638
639 string Program::get_info_log() const
640 {
641         GLsizei len = get_program_i(id, GL_INFO_LOG_LENGTH);
642         string log(len+1, 0);
643         glGetProgramInfoLog(id, len+1, &len, &log[0]);
644         log.erase(len);
645         return log;
646 }
647
648 const Program::UniformBlockInfo &Program::get_uniform_block_info(const string &name) const
649 {
650         for(vector<UniformBlockInfo>::const_iterator i=uniform_blocks.begin(); i!=uniform_blocks.end(); ++i)
651                 if(i->name==name)
652                         return *i;
653         throw key_error(name);
654 }
655
656 const Program::UniformInfo &Program::get_uniform_info(const string &name) const
657 {
658         vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, Tag(name), &UniformInfo::tag);
659         if(i==uniforms.end() || i->name!=name)
660                 throw key_error(name);
661         return *i;
662 }
663
664 const Program::UniformInfo &Program::get_uniform_info(Tag tag) const
665 {
666         vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, tag, &UniformInfo::tag);
667         if(i==uniforms.end() || i->tag!=tag)
668                 throw key_error(tag);
669         return *i;
670 }
671
672 int Program::get_uniform_location(const string &name) const
673 {
674         if(name[name.size()-1]==']')
675                 throw invalid_argument("Program::get_uniform_location");
676
677         vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, Tag(name), &UniformInfo::tag);
678         return i!=uniforms.end() && i->name==name && i->block->bind_point<0 ? i->location : -1;
679 }
680
681 int Program::get_uniform_location(Tag tag) const
682 {
683         vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, tag, &UniformInfo::tag);
684         return i!=uniforms.end() && i->tag==tag && i->block->bind_point<0 ? i->location : -1;
685 }
686
687 int Program::get_uniform_binding(Tag tag) const
688 {
689         vector<UniformInfo>::const_iterator i = lower_bound_member(uniforms, tag, &UniformInfo::tag);
690         return i!=uniforms.end() && i->tag==tag ? i->binding : -1;
691 }
692
693 const Program::AttributeInfo &Program::get_attribute_info(const string &name) const
694 {
695         vector<AttributeInfo>::const_iterator i = lower_bound_member(attributes, name, &AttributeInfo::name);
696         if(i==attributes.end() || i->name!=name)
697                 throw key_error(name);
698         return *i;
699 }
700
701 int Program::get_attribute_location(const string &name) const
702 {
703         if(name[name.size()-1]==']')
704                 throw invalid_argument("Program::get_attribute_location");
705
706         vector<AttributeInfo>::const_iterator i = lower_bound_member(attributes, name, &AttributeInfo::name);
707         return i!=attributes.end() && i->name==name ? i->location : -1;
708 }
709
710 void Program::bind() const
711 {
712         if(!linked)
713                 throw invalid_operation("Program::bind");
714
715         if(!set_current(this))
716                 return;
717
718         glUseProgram(id);
719 }
720
721 void Program::unbind()
722 {
723         if(!set_current(0))
724                 return;
725
726         glUseProgram(0);
727 }
728
729
730 Program::UniformInfo::UniformInfo():
731         block(0),
732         location(-1),
733         array_size(0),
734         array_stride(0),
735         matrix_stride(0),
736         type(VOID),
737         binding(-1)
738 { }
739
740
741 Program::UniformBlockInfo::UniformBlockInfo():
742         data_size(0),
743         bind_point(-1),
744         layout_hash(0)
745 { }
746
747
748 Program::AttributeInfo::AttributeInfo():
749         location(-1),
750         array_size(0),
751         type(VOID)
752 { }
753
754
755 Program::Loader::Loader(Program &p, Collection &c):
756         DataFile::CollectionObjectLoader<Program>(p, &c)
757 {
758         add("module",          &Loader::module);
759
760         // Deprecated
761         add("attribute",       &Loader::attribute);
762         add("fragment_shader", &Loader::fragment_shader);
763         add("geometry_shader", &Loader::geometry_shader);
764         add("vertex_shader",   &Loader::vertex_shader);
765 }
766
767 void Program::Loader::finish()
768 {
769         obj.link();
770 }
771
772 void Program::Loader::module(const string &n)
773 {
774         map<string, int> spec_values;
775         SpecializationLoader ldr(spec_values);
776         load_sub_with(ldr);
777         obj.add_stages(get_collection().get<Module>(n), spec_values);
778 }
779
780 #pragma GCC diagnostic push
781 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
782 void Program::Loader::attribute(unsigned i, const string &n)
783 {
784         obj.bind_attribute(i, n);
785 }
786
787 void Program::Loader::fragment_shader(const string &src)
788 {
789         obj.attach_shader_owned(new FragmentShader(src));
790 }
791
792 void Program::Loader::geometry_shader(const string &src)
793 {
794         obj.attach_shader_owned(new GeometryShader(src));
795 }
796
797 void Program::Loader::vertex_shader(const string &src)
798 {
799         obj.attach_shader_owned(new VertexShader(src));
800 }
801 #pragma GCC diagnostic pop
802
803
804 DataFile::Loader::ActionMap Program::SpecializationLoader::shared_actions;
805
806 Program::SpecializationLoader::SpecializationLoader(map<string, int> &sv):
807         spec_values(sv)
808 {
809         set_actions(shared_actions);
810 }
811
812 void Program::SpecializationLoader::init_actions()
813 {
814         add("specialize", &SpecializationLoader::specialize_bool);
815         add("specialize", &SpecializationLoader::specialize_int);
816 }
817
818 void Program::SpecializationLoader::specialize_bool(const string &name, bool value)
819 {
820         spec_values[name] = value;
821 }
822
823 void Program::SpecializationLoader::specialize_int(const string &name, int value)
824 {
825         spec_values[name] = value;
826 }
827
828 } // namespace GL
829 } // namespace Msp