source/render/programdata.cpp

   1 #include <msp/core/algorithm.h>
   2 #include <msp/core/maputils.h>
   3 #include <msp/debug/demangle.h>
   4 #include <msp/gl/extensions/arb_direct_state_access.h>
   5 #include <msp/io/print.h>
   6 #include "buffer.h"
   7 #include "color.h"
   8 #include "error.h"
   9 #include "matrix.h"
  10 #include "program.h"
  11 #include "programdata.h"
  12 #include "uniform.h"
  13 #include "uniformblock.h"
  14 #include "vector.h"
  15
  16 using namespace std;
  17
  18 namespace Msp {
  19 namespace GL {
  20
  21 ProgramData::ProgramData(const Program *p):
  22         tied_program(p),
  23         generation(0),
  24         last_buffer_block(0),
  25         buffer(0),
  26         dirty(0)
  27 { }
  28
  29 // Blocks are intentionally left uncopied
  30 ProgramData::ProgramData(const ProgramData &other):
  31         tied_program(other.tied_program),
  32         uniforms(other.uniforms),
  33         generation(other.generation),
  34         last_buffer_block(0),
  35         buffer(0),
  36         dirty(0)
  37 {
  38         for(vector<TaggedUniform>::iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
  39                 i->value = i->value->clone();
  40 }
  41
  42 ProgramData::ProgramData(const ProgramData &other, const Program *p):
  43         tied_program(p),
  44         last_buffer_block(0),
  45         buffer(0),
  46         dirty(0)
  47 {
  48         if(tied_program)
  49         {
  50                 for(vector<TaggedUniform>::const_iterator i=other.uniforms.begin(); i!=other.uniforms.end(); ++i)
  51                         validate_tag(i->tag);
  52         }
  53
  54         uniforms = other.uniforms;
  55         for(vector<TaggedUniform>::iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
  56                 i->value = i->value->clone();
  57 }
  58
  59 ProgramData &ProgramData::operator=(const ProgramData &other)
  60 {
  61         tied_program = other.tied_program;
  62
  63         uniforms = other.uniforms;
  64         for(vector<TaggedUniform>::iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
  65                 i->value = i->value->clone();
  66
  67         for(vector<SharedBlock>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
  68                 delete i->block;
  69         programs.clear();
  70
  71         last_buffer_block = 0;
  72         buffer = 0;
  73         dirty = 0;
  74
  75         return *this;
  76 }
  77
  78 ProgramData::~ProgramData()
  79 {
  80         for(vector<TaggedUniform>::iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
  81                 delete i->value;
  82         for(vector<SharedBlock>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
  83         {
  84                 if(i->indices.type_flag==0xFE)
  85                         delete[] i->indices.dynamic.values;
  86                 delete i->block;
  87         }
  88         delete buffer;
  89 }
  90
  91 void ProgramData::uniform(Tag tag, Uniform *uni)
  92 {
  93         try
  94         {
  95                 if(!validate_tag(tag))
  96                 {
  97                         delete uni;
  98                         return;
  99                 }
 100         }
 101         catch(...)
 102         {
 103                 delete uni;
 104                 throw;
 105         }
 106
 107         int i = find_uniform_index(tag);
 108         if(i<0)
 109                 return add_uniform(tag, uni);
 110
 111         uniforms[i].replace_value(uni);
 112         mark_dirty(1<<i);
 113 }
 114
 115 template<typename T, typename V>
 116 void ProgramData::uniform(Tag tag, V value)
 117 {
 118         if(!validate_tag(tag))
 119                 return;
 120
 121         int i = find_uniform_index(tag);
 122         if(i<0)
 123                 return add_uniform(tag, new T(value));
 124
 125         if(T *uni = dynamic_cast<T *>(uniforms[i].value))
 126                 uni->set(value);
 127         else
 128                 uniforms[i].replace_value(new T(value));
 129
 130         mark_dirty(1<<i);
 131 }
 132
 133 template<typename T, typename V>
 134 void ProgramData::uniform_array(Tag tag, unsigned n, V value)
 135 {
 136         if(!validate_tag(tag))
 137                 return;
 138
 139         int i = find_uniform_index(tag);
 140         if(i<0)
 141                 return add_uniform(tag, new UniformArray<T>(n, value));
 142
 143         UniformArray<T> *uni = dynamic_cast<UniformArray<T> *>(uniforms[i].value);
 144         if(uni && n==uni->size())
 145                 uni->set(value);
 146         else
 147                 uniforms[i].replace_value(new UniformArray<T>(n, value));
 148
 149         mark_dirty(1<<i);
 150 }
 151
 152 bool ProgramData::validate_tag(Tag tag) const
 153 {
 154 #ifdef DEBUG
 155         try
 156 #endif
 157         {
 158                 if(tied_program)
 159                 {
 160                         const Program::UniformInfo &info = tied_program->get_uniform_info(tag);
 161                         if(is_image(info.type))
 162                                 throw invalid_operation("ProgramData::uniform");
 163                 }
 164                 return true;
 165         }
 166 #ifdef DEBUG
 167         catch(const exception &e)
 168         {
 169                 IO::print(IO::cerr, "Error while setting uniform %s: %s: %s\n", tag, Debug::demangle(typeid(e).name()), e.what());
 170                 return false;
 171         }
 172 #endif
 173 }
 174
 175 void ProgramData::add_uniform(Tag tag, Uniform *uni)
 176 {
 177         if(uniforms.size()>=MASK_BITS)
 178         {
 179                 delete uni;
 180                 throw too_many_uniforms(tag.str());
 181         }
 182
 183         vector<TaggedUniform>::iterator j = lower_bound_member(uniforms, tag, &TaggedUniform::tag);
 184
 185         TaggedUniform nu;
 186         nu.tag = tag;
 187         nu.value = uni;
 188         uniforms.insert(j, nu);
 189
 190         mark_dirty(ALL_ONES);
 191 }
 192
 193 void ProgramData::mark_dirty(Mask bits)
 194 {
 195         if(!dirty)
 196                 ++generation;
 197         dirty |= bits;
 198 }
 199
 200 void ProgramData::uniform(Tag tag, const Uniform &u)
 201 {
 202         uniform(tag, u.clone());
 203 }
 204
 205 void ProgramData::uniform(Tag tag, int v)
 206 {
 207         uniform<Uniform1i>(tag, v);
 208 }
 209
 210 void ProgramData::uniform(Tag tag, float v)
 211 {
 212         uniform<Uniform1f>(tag, v);
 213 }
 214
 215 void ProgramData::uniform(Tag tag, int v0, int v1)
 216 {
 217         int va[2] = { v0, v1 };
 218         uniform2(tag, va);
 219 }
 220
 221 void ProgramData::uniform(Tag tag, float v0, float v1)
 222 {
 223         float va[2] = { v0, v1 };
 224         uniform2(tag, va);
 225 }
 226
 227 void ProgramData::uniform2(Tag tag, const int *v)
 228 {
 229         uniform<Uniform2i>(tag, v);
 230 }
 231
 232 void ProgramData::uniform2(Tag tag, const float *v)
 233 {
 234         uniform<Uniform2f>(tag, v);
 235 }
 236
 237 void ProgramData::uniform(Tag tag, int v0, int v1, int v2)
 238 {
 239         int va[3] = { v0, v1, v2 };
 240         uniform3(tag, va);
 241 }
 242
 243 void ProgramData::uniform(Tag tag, float v0, float v1, float v2)
 244 {
 245         float va[3] = { v0, v1, v2 };
 246         uniform3(tag, va);
 247 }
 248
 249 void ProgramData::uniform3(Tag tag, const int *v)
 250 {
 251         uniform<Uniform3i>(tag, v);
 252 }
 253
 254 void ProgramData::uniform3(Tag tag, const float *v)
 255 {
 256         uniform<Uniform3f>(tag, v);
 257 }
 258
 259 void ProgramData::uniform(Tag tag, int v0, int v1, int v2, int v3)
 260 {
 261         int va[4] = { v0, v1, v2, v3 };
 262         uniform4(tag, va);
 263 }
 264
 265 void ProgramData::uniform(Tag tag, float v0, float v1, float v2, float v3)
 266 {
 267         float va[4] = { v0, v1, v2, v3 };
 268         uniform4(tag, va);
 269 }
 270
 271 void ProgramData::uniform(Tag tag, const Color &c)
 272 {
 273         uniform(tag, c.r, c.g, c.b, c.a);
 274 }
 275
 276 void ProgramData::uniform4(Tag tag, const int *v)
 277 {
 278         uniform<Uniform4i>(tag, v);
 279 }
 280
 281 void ProgramData::uniform4(Tag tag, const float *v)
 282 {
 283         uniform<Uniform4f>(tag, v);
 284 }
 285
 286 void ProgramData::uniform_matrix2(Tag tag, const float *v)
 287 {
 288         uniform<UniformMatrix2x2f>(tag, v);
 289 }
 290
 291 void ProgramData::uniform_matrix3x2(Tag tag, const float *v)
 292 {
 293         uniform<UniformMatrix3x2f>(tag, v);
 294 }
 295
 296 void ProgramData::uniform_matrix4x2(Tag tag, const float *v)
 297 {
 298         uniform<UniformMatrix4x2f>(tag, v);
 299 }
 300
 301 void ProgramData::uniform_matrix2x3(Tag tag, const float *v)
 302 {
 303         uniform<UniformMatrix2x3f>(tag, v);
 304 }
 305
 306 void ProgramData::uniform_matrix3(Tag tag, const float *v)
 307 {
 308         uniform<UniformMatrix3x3f>(tag, v);
 309 }
 310
 311 void ProgramData::uniform_matrix4x3(Tag tag, const float *v)
 312 {
 313         uniform<UniformMatrix4x3f>(tag, v);
 314 }
 315
 316 void ProgramData::uniform_matrix2x4(Tag tag, const float *v)
 317 {
 318         uniform<UniformMatrix2x4f>(tag, v);
 319 }
 320
 321 void ProgramData::uniform_matrix3x4(Tag tag, const float *v)
 322 {
 323         uniform<UniformMatrix3x4f>(tag, v);
 324 }
 325
 326 void ProgramData::uniform(Tag tag, const Matrix &m)
 327 {
 328         uniform_matrix4(tag, m.data());
 329 }
 330
 331 void ProgramData::uniform_matrix4(Tag tag, const float *v)
 332 {
 333         uniform<UniformMatrix4x4f>(tag, v);
 334 }
 335
 336 void ProgramData::uniform_array(Tag tag, unsigned n, const int *v)
 337 {
 338         uniform_array<Uniform1i>(tag, n, v);
 339 }
 340
 341 void ProgramData::uniform_array(Tag tag, unsigned n, const float *v)
 342 {
 343         uniform_array<Uniform1f>(tag, n, v);
 344 }
 345
 346 void ProgramData::uniform1_array(Tag tag, unsigned n, const int *v)
 347 {
 348         uniform_array<Uniform1i>(tag, n, v);
 349 }
 350
 351 void ProgramData::uniform1_array(Tag tag, unsigned n, const float *v)
 352 {
 353         uniform_array<Uniform1f>(tag, n, v);
 354 }
 355
 356 void ProgramData::uniform2_array(Tag tag, unsigned n, const int *v)
 357 {
 358         uniform_array<Uniform2i>(tag, n, v);
 359 }
 360
 361 void ProgramData::uniform2_array(Tag tag, unsigned n, const float *v)
 362 {
 363         uniform_array<Uniform2f>(tag, n, v);
 364 }
 365
 366 void ProgramData::uniform3_array(Tag tag, unsigned n, const int *v)
 367 {
 368         uniform_array<Uniform3i>(tag, n, v);
 369 }
 370
 371 void ProgramData::uniform3_array(Tag tag, unsigned n, const float *v)
 372 {
 373         uniform_array<Uniform3f>(tag, n, v);
 374 }
 375
 376 void ProgramData::uniform4_array(Tag tag, unsigned n, const int *v)
 377 {
 378         uniform_array<Uniform4i>(tag, n, v);
 379 }
 380
 381 void ProgramData::uniform4_array(Tag tag, unsigned n, const float *v)
 382 {
 383         uniform_array<Uniform4f>(tag, n, v);
 384 }
 385
 386 void ProgramData::uniform_matrix2_array(Tag tag, unsigned n, const float *v)
 387 {
 388         uniform_array<UniformMatrix2x2f>(tag, n, v);
 389 }
 390
 391 void ProgramData::uniform_matrix3x2_array(Tag tag, unsigned n, const float *v)
 392 {
 393         uniform_array<UniformMatrix3x2f>(tag, n, v);
 394 }
 395
 396 void ProgramData::uniform_matrix4x2_array(Tag tag, unsigned n, const float *v)
 397 {
 398         uniform_array<UniformMatrix4x2f>(tag, n, v);
 399 }
 400
 401 void ProgramData::uniform_matrix2x3_array(Tag tag, unsigned n, const float *v)
 402 {
 403         uniform_array<UniformMatrix2x3f>(tag, n, v);
 404 }
 405
 406 void ProgramData::uniform_matrix3_array(Tag tag, unsigned n, const float *v)
 407 {
 408         uniform_array<UniformMatrix3x3f>(tag, n, v);
 409 }
 410
 411 void ProgramData::uniform_matrix4x3_array(Tag tag, unsigned n, const float *v)
 412 {
 413         uniform_array<UniformMatrix4x3f>(tag, n, v);
 414 }
 415
 416 void ProgramData::uniform_matrix2x4_array(Tag tag, unsigned n, const float *v)
 417 {
 418         uniform_array<UniformMatrix2x4f>(tag, n, v);
 419 }
 420
 421 void ProgramData::uniform_matrix3x4_array(Tag tag, unsigned n, const float *v)
 422 {
 423         uniform_array<UniformMatrix3x4f>(tag, n, v);
 424 }
 425
 426 void ProgramData::uniform_matrix4_array(Tag tag, unsigned n, const float *v)
 427 {
 428         uniform_array<UniformMatrix4x4f>(tag, n, v);
 429 }
 430
 431 void ProgramData::remove_uniform(Tag tag)
 432 {
 433         vector<TaggedUniform>::const_iterator i = lower_bound_member(uniforms, tag, &TaggedUniform::tag);
 434         if(i==uniforms.end() || i->tag!=tag)
 435                 return;
 436
 437         delete i->value;
 438         uniforms.erase(i);
 439
 440         mark_dirty(ALL_ONES);
 441 }
 442
 443 vector<Tag> ProgramData::get_uniform_tags() const
 444 {
 445         vector<Tag> tags;
 446         tags.reserve(uniforms.size());
 447         for(vector<TaggedUniform>::const_iterator i=uniforms.begin(); i!=uniforms.end(); ++i)
 448                 tags.push_back(i->tag);
 449         return tags;
 450 }
 451
 452 const Uniform &ProgramData::get_uniform(Tag tag) const
 453 {
 454         int i = find_uniform_index(tag);
 455         if(i<0)
 456                 throw key_error(tag);
 457         return *uniforms[i].value;
 458 }
 459
 460 const Uniform *ProgramData::find_uniform(Tag tag) const
 461 {
 462         int i = find_uniform_index(tag);
 463         return (i>=0 ? uniforms[i].value : 0);
 464 }
 465
 466 int ProgramData::find_uniform_index(Tag tag) const
 467 {
 468         vector<TaggedUniform>::const_iterator i = lower_bound_member(uniforms, tag, &TaggedUniform::tag);
 469         return ((i!=uniforms.end() && i->tag==tag) ? i-uniforms.begin() : -1);
 470 }
 471
 472 vector<ProgramData::ProgramBlock>::iterator ProgramData::get_program(const Program &prog) const
 473 {
 474         Program::LayoutHash prog_hash = prog.get_uniform_layout_hash();
 475         vector<ProgramBlock>::iterator i = lower_bound_member(programs, prog_hash, &ProgramBlock::prog_hash);
 476         if(i!=programs.end() && i->prog_hash==prog_hash)
 477                 return i;
 478
 479         const vector<Program::UniformBlockInfo> &block_infos = prog.get_uniform_blocks();
 480         unsigned index = i-programs.begin();
 481         programs.insert(i, 1+block_infos.size(), ProgramBlock(prog_hash));
 482
 483         /* Block indices may change if new shared blocks need to be inserted.  Store
 484         the hashes so they can be matched up later. */
 485         vector<Program::LayoutHash> block_hashes;
 486         block_hashes.reserve(programs.size());
 487         for(vector<ProgramBlock>::iterator j=programs.begin(); j!=programs.end(); ++j)
 488                 block_hashes.push_back(j->block_index>=0 ? blocks[j->block_index].block_hash : 0);
 489
 490         for(unsigned j=0; j<block_infos.size(); ++j)
 491         {
 492                 const Program::UniformBlockInfo &info = block_infos[j];
 493                 block_hashes[index+1+j] = info.layout_hash;
 494                 programs[index+1+j].bind_point = info.bind_point;
 495
 496                 vector<SharedBlock>::iterator k = lower_bound_member(blocks, info.layout_hash, &SharedBlock::block_hash);
 497                 if(k==blocks.end() || k->block_hash!=info.layout_hash)
 498                 {
 499                         k = blocks.insert(k, SharedBlock(info.layout_hash));
 500                         update_block_uniform_indices(*k, info);
 501                 }
 502         }
 503
 504         /* Reassign shared block indices from the stored hashes. */
 505         for(unsigned j=0; j<programs.size(); ++j)
 506         {
 507                 unsigned hash = block_hashes[j];
 508                 if(hash)
 509                 {
 510                         vector<SharedBlock>::const_iterator k = lower_bound_member(blocks, hash, &SharedBlock::block_hash);
 511                         programs[j].block_index = k-blocks.begin();
 512                 }
 513                 else
 514                         programs[j].block_index = -1;
 515         }
 516
 517         return programs.begin()+index;
 518 }
 519
 520 void ProgramData::update_block_uniform_indices(SharedBlock &block, const Program::UniformBlockInfo &info) const
 521 {
 522         UInt8 *indices = block.indices.values;
 523         if(info.uniforms.size()>16)
 524         {
 525                 if(block.indices.type_flag==0xFD)
 526                 {
 527                         block.indices.dynamic.values = new UInt8[info.uniforms.size()];
 528                         block.indices.type_flag = 0xFE;
 529                 }
 530                 indices = block.indices.dynamic.values;
 531         }
 532
 533         bool any_missing = false;
 534
 535         block.used = 0;
 536         for(unsigned i=0; i<info.uniforms.size(); ++i)
 537         {
 538                 int j = find_uniform_index(info.uniforms[i]->tag);
 539                 if(j>=0)
 540                 {
 541                         indices[i] = j;
 542                         if(static_cast<unsigned>(j)<MASK_BITS)
 543                                 block.used |= 1<<j;
 544                 }
 545                 else
 546                 {
 547                         indices[i] = 0xFF;
 548                         any_missing = true;
 549                 }
 550         }
 551
 552         if(block.used && any_missing && info.bind_point>=0)
 553         {
 554 #ifdef DEBUG
 555                 IO::print(IO::cerr, "Warning: not all uniforms for block %s are present\n", info.name);
 556 #else
 557                 throw incomplete_uniform_block(info.name);
 558 #endif
 559         }
 560
 561         block.dirty = block.used;
 562
 563         if(block.used && !block.block)
 564         {
 565                 if(info.bind_point>=0)
 566                 {
 567                         if(!buffer)
 568                                 buffer = new Buffer(UNIFORM_BUFFER);
 569
 570                         BufferBackedUniformBlock *bb_block = new BufferBackedUniformBlock(info.data_size);
 571                         block.block = bb_block;
 572                         bb_block->use_buffer(buffer, last_buffer_block);
 573                         last_buffer_block = bb_block;
 574                 }
 575                 else
 576                         block.block = new DefaultUniformBlock;
 577         }
 578 }
 579
 580 void ProgramData::update_block(SharedBlock &block, const Program::UniformBlockInfo &info) const
 581 {
 582         const UInt8 *indices = block.get_uniform_indices();
 583         for(unsigned i=0; i<info.uniforms.size(); ++i)
 584         {
 585                 if(is_image(info.uniforms[i]->type))
 586                         ;  // Temporarily ignore deprecated use of sampler uniforms in ProgramData
 587                 else if(indices[i]!=0xFF)
 588                         block.block->attach(*info.uniforms[i], *uniforms[indices[i]].value);
 589         }
 590 }
 591
 592 void ProgramData::apply() const
 593 {
 594         const Program *prog = Program::current();
 595         if(!prog)
 596                 throw invalid_operation("ProgramData::apply");
 597
 598         BufferBackedUniformBlock *old_last_block = last_buffer_block;
 599         vector<ProgramBlock>::iterator prog_begin = get_program(*prog);
 600         Program::LayoutHash prog_hash = prog->get_uniform_layout_hash();
 601
 602         Mask force_dirty = (dirty==ALL_ONES ? ALL_ONES : 0U);
 603         Mask affected = (dirty&prog_begin->masks.used) | force_dirty;
 604         if(affected|prog_begin->masks.dirty)
 605         {
 606                 /* If the global dirty flag affects this program, add it to per-block and
 607                 per-program dirty flags and clear the global flag.  A previously unseen
 608                 program will cause this to happen if there's any dirty uniforms. */
 609                 if(affected)
 610                 {
 611                         for(vector<SharedBlock>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 612                                 i->dirty |= (dirty&i->used) | force_dirty;
 613                         for(vector<ProgramBlock>::iterator i=programs.begin(); i!=programs.end(); ++i)
 614                                 if(i->block_index<0)
 615                                         i->masks.dirty |= (dirty&i->masks.used) | force_dirty;
 616                         dirty = 0;
 617                 }
 618
 619                 const vector<Program::UniformBlockInfo> &block_infos = prog->get_uniform_blocks();
 620
 621                 if(prog_begin->masks.dirty==ALL_ONES)
 622                 {
 623                         /* The set of uniforms has changed since this program was last used.
 624                         Refresh uniform indices within the program's blocks. */
 625                         prog_begin->masks.used = 0;
 626                         vector<ProgramBlock>::iterator j = prog_begin+1;
 627                         for(vector<Program::UniformBlockInfo>::const_iterator i=block_infos.begin(); i!=block_infos.end(); ++i, ++j)
 628                         {
 629                                 SharedBlock &shared = blocks[j->block_index];
 630                                 if(shared.dirty==ALL_ONES)
 631                                         update_block_uniform_indices(shared, *i);
 632                                 prog_begin->masks.used |= shared.used;
 633                                 j->block = (shared.used ? shared.block : 0);
 634                         }
 635                 }
 636
 637                 // Update the contents of all dirty blocks.
 638                 bool buffered_blocks_updated = false;
 639                 vector<ProgramBlock>::iterator j = prog_begin+1;
 640                 for(vector<Program::UniformBlockInfo>::const_iterator i=block_infos.begin(); i!=block_infos.end(); ++i, ++j)
 641                 {
 642                         SharedBlock &shared = blocks[j->block_index];
 643                         if(shared.dirty)
 644                         {
 645                                 update_block(shared, *i);
 646                                 shared.dirty = 0;
 647                                 buffered_blocks_updated |= (j->bind_point>=0);
 648                         }
 649                 }
 650
 651                 prog_begin->masks.dirty = 0;
 652
 653                 /* If any blocks stored in the buffer were updated, bind the buffer here
 654                 to avoid state thrashing. */
 655                 if(buffered_blocks_updated && !ARB_direct_state_access)
 656                         buffer->bind();
 657
 658                 if(last_buffer_block!=old_last_block)
 659                 {
 660                         unsigned required_size = last_buffer_block->get_required_buffer_size();
 661                         if(last_buffer_block->get_required_buffer_size()>buffer->get_size())
 662                         {
 663                                 if(buffer->get_size()>0)
 664                                 {
 665                                         delete buffer;
 666                                         buffer = new Buffer(UNIFORM_BUFFER);
 667                                         last_buffer_block->change_buffer(buffer);
 668                                 }
 669
 670                                 buffer->storage(required_size);
 671                         }
 672                 }
 673         }
 674
 675         for(vector<ProgramBlock>::iterator i=prog_begin+1; (i!=programs.end() && i->prog_hash==prog_hash); ++i)
 676                 if(i->block)
 677                         i->block->apply(i->bind_point);
 678 }
 679
 680
 681 ProgramData::TaggedUniform::TaggedUniform():
 682         value(0)
 683 { }
 684
 685 void ProgramData::TaggedUniform::replace_value(Uniform *v)
 686 {
 687         /* UniformBlock does not copy the uniforms, so existing default blocks
 688         will be left with stale pointers.  This is not a problem as long as no
 689         one stores pointers to the blocks and expects them to stay valid. */
 690         delete value;
 691         value = v;
 692 }
 693
 694
 695 ProgramData::SharedBlock::SharedBlock(Program::LayoutHash h):
 696         block_hash(h),
 697         used(0),
 698         dirty(0),
 699         block(0)
 700 {
 701         indices.type_flag = 0xFD;
 702 }
 703
 704 const UInt8 *ProgramData::SharedBlock::get_uniform_indices() const
 705 {
 706         return (indices.type_flag==0xFE ? indices.dynamic.values : indices.values);
 707 }
 708
 709
 710 ProgramData::ProgramBlock::ProgramBlock(Program::LayoutHash h):
 711         prog_hash(h),
 712         bind_point(-1),
 713         block_index(-1)
 714 {
 715         masks.used = ALL_ONES;
 716         masks.dirty = ALL_ONES;
 717 }
 718
 719
 720 ProgramData::Loader::Loader(ProgramData &pd):
 721         DataFile::ObjectLoader<ProgramData>(pd)
 722 {
 723         add("uniform", &Loader::uniform1i);
 724         add("uniform1i", &Loader::uniform1i);
 725         add("uniform", &Loader::uniform1f);
 726         add("uniform1f", &Loader::uniform1f);
 727         add("uniform", &Loader::uniform2i);
 728         add("uniform2i", &Loader::uniform2i);
 729         add("uniform", &Loader::uniform2f);
 730         add("uniform2f", &Loader::uniform2f);
 731         add("uniform", &Loader::uniform3i);
 732         add("uniform3i", &Loader::uniform3i);
 733         add("uniform", &Loader::uniform3f);
 734         add("uniform3f", &Loader::uniform3f);
 735         add("uniform", &Loader::uniform4i);
 736         add("uniform4i", &Loader::uniform4i);
 737         add("uniform", &Loader::uniform4f);
 738         add("uniform4f", &Loader::uniform4f);
 739         add("uniform1i_array", &Loader::uniform1i_array);
 740         add("uniform1f_array", &Loader::uniform1f_array);
 741         add("uniform2f_array", &Loader::uniform2f_array);
 742         add("uniform3f_array", &Loader::uniform3f_array);
 743         add("uniform4f_array", &Loader::uniform4f_array);
 744         add("uniform_array", &Loader::uniform_array);
 745 }
 746
 747 void ProgramData::Loader::uniform1i(const string &n, int v)
 748 {
 749         obj.uniform(n, v);
 750 }
 751
 752 void ProgramData::Loader::uniform1f(const string &n, float v)
 753 {
 754         obj.uniform(n, v);
 755 }
 756
 757 void ProgramData::Loader::uniform2i(const string &n, int v0, int v1)
 758 {
 759         obj.uniform(n, v0, v1);
 760 }
 761
 762 void ProgramData::Loader::uniform2f(const string &n, float v0, float v1)
 763 {
 764         obj.uniform(n, v0, v1);
 765 }
 766
 767 void ProgramData::Loader::uniform3i(const string &n, int v0, int v1, int v2)
 768 {
 769         obj.uniform(n, v0, v1, v2);
 770 }
 771
 772 void ProgramData::Loader::uniform3f(const string &n, float v0, float v1, float v2)
 773 {
 774         obj.uniform(n, v0, v1, v2);
 775 }
 776
 777 void ProgramData::Loader::uniform4i(const string &n, int v0, int v1, int v2, int v3)
 778 {
 779         obj.uniform(n, v0, v1, v2, v3);
 780 }
 781
 782 void ProgramData::Loader::uniform4f(const string &n, float v0, float v1, float v2, float v3)
 783 {
 784         obj.uniform(n, v0, v1, v2, v3);
 785 }
 786
 787 void ProgramData::Loader::uniform_array_(const string &n, DataType t, unsigned e)
 788 {
 789         ArrayLoader ldr(t, e);
 790         load_sub_with(ldr);
 791         unsigned size = ldr.get_size();
 792         if(!size)
 793                 throw logic_error("empty uniform array");
 794
 795         DataType type = ldr.get_data_type();
 796         unsigned elem_size = ldr.get_element_size();
 797         if(type==INT)
 798         {
 799                 const int *data = reinterpret_cast<const int *>(ldr.get_data());
 800                 if(elem_size==1)
 801                         obj.uniform1_array(n, size, data);
 802                 else if(elem_size==2)
 803                         obj.uniform2_array(n, size, data);
 804                 else if(elem_size==3)
 805                         obj.uniform3_array(n, size, data);
 806                 else if(elem_size==4)
 807                         obj.uniform4_array(n, size, data);
 808                 else
 809                         throw logic_error("unsupported combination of array type and element size");
 810         }
 811         else if(type==FLOAT)
 812         {
 813                 const float *data = reinterpret_cast<const float *>(ldr.get_data());
 814                 if(elem_size==1)
 815                         obj.uniform1_array(n, size, data);
 816                 else if(elem_size==2)
 817                         obj.uniform2_array(n, size, data);
 818                 else if(elem_size==3)
 819                         obj.uniform3_array(n, size, data);
 820                 else if(elem_size==4)
 821                         obj.uniform4_array(n, size, data);
 822                 else
 823                         throw logic_error("unsupported combination of array type and element size");
 824         }
 825         else
 826                 throw logic_error("unsupported array type");
 827 }
 828
 829 void ProgramData::Loader::uniform1i_array(const string &n)
 830 {
 831         uniform_array_(n, INT, 1);
 832 }
 833
 834 void ProgramData::Loader::uniform1f_array(const string &n)
 835 {
 836         uniform_array_(n, FLOAT, 1);
 837 }
 838
 839 void ProgramData::Loader::uniform2i_array(const string &n)
 840 {
 841         uniform_array_(n, INT, 2);
 842 }
 843
 844 void ProgramData::Loader::uniform2f_array(const string &n)
 845 {
 846         uniform_array_(n, FLOAT, 2);
 847 }
 848
 849 void ProgramData::Loader::uniform3i_array(const string &n)
 850 {
 851         uniform_array_(n, INT, 3);
 852 }
 853
 854 void ProgramData::Loader::uniform3f_array(const string &n)
 855 {
 856         uniform_array_(n, FLOAT, 3);
 857 }
 858
 859 void ProgramData::Loader::uniform4i_array(const string &n)
 860 {
 861         uniform_array_(n, INT, 4);
 862 }
 863
 864 void ProgramData::Loader::uniform4f_array(const string &n)
 865 {
 866         uniform_array_(n, FLOAT, 4);
 867 }
 868
 869 void ProgramData::Loader::uniform_array(const string &n)
 870 {
 871         uniform_array_(n, static_cast<DataType>(0), 0);
 872 }
 873
 874
 875 ProgramData::ArrayLoader::ArrayLoader(DataType t, unsigned e):
 876         type(t),
 877         element_size(e)
 878 {
 879         add("uniform", &ArrayLoader::uniform1i);
 880         add("uniform1i", &ArrayLoader::uniform1i);
 881         add("uniform", &ArrayLoader::uniform1f);
 882         add("uniform1f", &ArrayLoader::uniform1f);
 883         add("uniform", &ArrayLoader::uniform2f);
 884         add("uniform2f", &ArrayLoader::uniform2f);
 885         add("uniform", &ArrayLoader::uniform3f);
 886         add("uniform3f", &ArrayLoader::uniform3f);
 887         add("uniform", &ArrayLoader::uniform4f);
 888         add("uniform4f", &ArrayLoader::uniform4f);
 889 }
 890
 891 void ProgramData::ArrayLoader::uniform(DataType t, unsigned e, const void *v)
 892 {
 893         if(element_size && (t!=type || e!=element_size))
 894                 throw logic_error("heterogeneous array contents");
 895
 896         if(!element_size)
 897         {
 898                 type = t;
 899                 element_size = e;
 900         }
 901
 902         const char *cv = reinterpret_cast<const char *>(v);
 903         data.insert(data.end(), cv, cv+element_size*4);
 904 }
 905
 906 void ProgramData::ArrayLoader::uniform1i(int v)
 907 {
 908         uniform(INT, 1, &v);
 909 }
 910
 911 void ProgramData::ArrayLoader::uniform1f(float v)
 912 {
 913         uniform(FLOAT, 1, &v);
 914 }
 915
 916 void ProgramData::ArrayLoader::uniform2i(int v0, int v1)
 917 {
 918         int va[2] = { v0, v1 };
 919         uniform(INT, 2, va);
 920 }
 921
 922 void ProgramData::ArrayLoader::uniform2f(float v0, float v1)
 923 {
 924         float va[2] = { v0, v1 };
 925         uniform(FLOAT, 2, va);
 926 }
 927
 928 void ProgramData::ArrayLoader::uniform3i(int v0, int v1, int v2)
 929 {
 930         int va[3] = { v0, v1, v2 };
 931         uniform(INT, 3, va);
 932 }
 933
 934 void ProgramData::ArrayLoader::uniform3f(float v0, float v1, float v2)
 935 {
 936         float va[3] = { v0, v1, v2 };
 937         uniform(FLOAT, 3, va);
 938 }
 939
 940 void ProgramData::ArrayLoader::uniform4i(int v0, int v1, int v2, int v3)
 941 {
 942         int va[4] = { v0, v1, v2, v3 };
 943         uniform(INT, 4, va);
 944 }
 945
 946 void ProgramData::ArrayLoader::uniform4f(float v0, float v1, float v2, float v3)
 947 {
 948         float va[4] = { v0, v1, v2, v3 };
 949         uniform(FLOAT, 4, va);
 950 }
 951
 952 } // namespace GL
 953 } // namespace Msp