vbo_exec_array.c revision 0a7602b938893e1b04a01ca8680376cbeec053ab
1/************************************************************************** 2 * 3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * Copyright 2009 VMware, Inc. 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sub license, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial portions 17 * of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 * 27 **************************************************************************/ 28 29#include "main/glheader.h" 30#include "main/context.h" 31#include "main/state.h" 32#include "main/api_validate.h" 33#include "main/varray.h" 34#include "main/bufferobj.h" 35#include "main/enums.h" 36#include "main/macros.h" 37#include "main/transformfeedback.h" 38 39#include "vbo_context.h" 40 41 42/** 43 * All vertex buffers should be in an unmapped state when we're about 44 * to draw. This debug function checks that. 45 */ 46static void 47check_buffers_are_unmapped(const struct gl_client_array **inputs) 48{ 49#ifdef DEBUG 50 GLuint i; 51 52 for (i = 0; i < VERT_ATTRIB_MAX; i++) { 53 if (inputs[i]) { 54 struct gl_buffer_object *obj = inputs[i]->BufferObj; 55 assert(!_mesa_bufferobj_mapped(obj)); 56 (void) obj; 57 } 58 } 59#endif 60} 61 62 63/** 64 * A debug function that may be called from other parts of Mesa as 65 * needed during debugging. 66 */ 67void 68vbo_check_buffers_are_unmapped(struct gl_context *ctx) 69{ 70 struct vbo_context *vbo = vbo_context(ctx); 71 struct vbo_exec_context *exec = &vbo->exec; 72 /* check the current vertex arrays */ 73 check_buffers_are_unmapped(exec->array.inputs); 74 /* check the current glBegin/glVertex/glEnd-style VBO */ 75 assert(!_mesa_bufferobj_mapped(exec->vtx.bufferobj)); 76} 77 78 79 80/** 81 * Compute min and max elements by scanning the index buffer for 82 * glDraw[Range]Elements() calls. 83 * If primitive restart is enabled, we need to ignore restart 84 * indexes when computing min/max. 85 */ 86void 87vbo_get_minmax_index(struct gl_context *ctx, 88 const struct _mesa_prim *prim, 89 const struct _mesa_index_buffer *ib, 90 GLuint *min_index, GLuint *max_index) 91{ 92 const GLboolean restart = ctx->Array.PrimitiveRestart; 93 const GLuint restartIndex = ctx->Array.RestartIndex; 94 const GLuint count = prim->count; 95 const void *indices; 96 GLuint i; 97 98 if (_mesa_is_bufferobj(ib->obj)) { 99 unsigned map_size; 100 101 switch (ib->type) { 102 case GL_UNSIGNED_INT: 103 map_size = count * sizeof(GLuint); 104 break; 105 case GL_UNSIGNED_SHORT: 106 map_size = count * sizeof(GLushort); 107 break; 108 case GL_UNSIGNED_BYTE: 109 map_size = count * sizeof(GLubyte); 110 break; 111 default: 112 assert(0); 113 map_size = 0; 114 } 115 116 indices = ctx->Driver.MapBufferRange(ctx, (GLsizeiptr) ib->ptr, map_size, 117 GL_MAP_READ_BIT, ib->obj); 118 } else { 119 indices = ib->ptr; 120 } 121 122 switch (ib->type) { 123 case GL_UNSIGNED_INT: { 124 const GLuint *ui_indices = (const GLuint *)indices; 125 GLuint max_ui = 0; 126 GLuint min_ui = ~0U; 127 if (restart) { 128 for (i = 0; i < count; i++) { 129 if (ui_indices[i] != restartIndex) { 130 if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; 131 if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; 132 } 133 } 134 } 135 else { 136 for (i = 0; i < count; i++) { 137 if (ui_indices[i] > max_ui) max_ui = ui_indices[i]; 138 if (ui_indices[i] < min_ui) min_ui = ui_indices[i]; 139 } 140 } 141 *min_index = min_ui; 142 *max_index = max_ui; 143 break; 144 } 145 case GL_UNSIGNED_SHORT: { 146 const GLushort *us_indices = (const GLushort *)indices; 147 GLuint max_us = 0; 148 GLuint min_us = ~0U; 149 if (restart) { 150 for (i = 0; i < count; i++) { 151 if (us_indices[i] != restartIndex) { 152 if (us_indices[i] > max_us) max_us = us_indices[i]; 153 if (us_indices[i] < min_us) min_us = us_indices[i]; 154 } 155 } 156 } 157 else { 158 for (i = 0; i < count; i++) { 159 if (us_indices[i] > max_us) max_us = us_indices[i]; 160 if (us_indices[i] < min_us) min_us = us_indices[i]; 161 } 162 } 163 *min_index = min_us; 164 *max_index = max_us; 165 break; 166 } 167 case GL_UNSIGNED_BYTE: { 168 const GLubyte *ub_indices = (const GLubyte *)indices; 169 GLuint max_ub = 0; 170 GLuint min_ub = ~0U; 171 if (restart) { 172 for (i = 0; i < count; i++) { 173 if (ub_indices[i] != restartIndex) { 174 if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; 175 if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; 176 } 177 } 178 } 179 else { 180 for (i = 0; i < count; i++) { 181 if (ub_indices[i] > max_ub) max_ub = ub_indices[i]; 182 if (ub_indices[i] < min_ub) min_ub = ub_indices[i]; 183 } 184 } 185 *min_index = min_ub; 186 *max_index = max_ub; 187 break; 188 } 189 default: 190 assert(0); 191 break; 192 } 193 194 if (_mesa_is_bufferobj(ib->obj)) { 195 ctx->Driver.UnmapBuffer(ctx, ib->obj); 196 } 197} 198 199 200/** 201 * Check that element 'j' of the array has reasonable data. 202 * Map VBO if needed. 203 * For debugging purposes; not normally used. 204 */ 205static void 206check_array_data(struct gl_context *ctx, struct gl_client_array *array, 207 GLuint attrib, GLuint j) 208{ 209 if (array->Enabled) { 210 const void *data = array->Ptr; 211 if (_mesa_is_bufferobj(array->BufferObj)) { 212 if (!array->BufferObj->Pointer) { 213 /* need to map now */ 214 array->BufferObj->Pointer = 215 ctx->Driver.MapBufferRange(ctx, 0, array->BufferObj->Size, 216 GL_MAP_READ_BIT, array->BufferObj); 217 } 218 data = ADD_POINTERS(data, array->BufferObj->Pointer); 219 } 220 switch (array->Type) { 221 case GL_FLOAT: 222 { 223 GLfloat *f = (GLfloat *) ((GLubyte *) data + array->StrideB * j); 224 GLint k; 225 for (k = 0; k < array->Size; k++) { 226 if (IS_INF_OR_NAN(f[k]) || 227 f[k] >= 1.0e20 || f[k] <= -1.0e10) { 228 printf("Bad array data:\n"); 229 printf(" Element[%u].%u = %f\n", j, k, f[k]); 230 printf(" Array %u at %p\n", attrib, (void* ) array); 231 printf(" Type 0x%x, Size %d, Stride %d\n", 232 array->Type, array->Size, array->Stride); 233 printf(" Address/offset %p in Buffer Object %u\n", 234 array->Ptr, array->BufferObj->Name); 235 f[k] = 1.0; /* XXX replace the bad value! */ 236 } 237 /*assert(!IS_INF_OR_NAN(f[k]));*/ 238 } 239 } 240 break; 241 default: 242 ; 243 } 244 } 245} 246 247 248/** 249 * Unmap the buffer object referenced by given array, if mapped. 250 */ 251static void 252unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array) 253{ 254 if (array->Enabled && 255 _mesa_is_bufferobj(array->BufferObj) && 256 _mesa_bufferobj_mapped(array->BufferObj)) { 257 ctx->Driver.UnmapBuffer(ctx, array->BufferObj); 258 } 259} 260 261 262/** 263 * Examine the array's data for NaNs, etc. 264 * For debug purposes; not normally used. 265 */ 266static void 267check_draw_elements_data(struct gl_context *ctx, GLsizei count, GLenum elemType, 268 const void *elements, GLint basevertex) 269{ 270 struct gl_array_object *arrayObj = ctx->Array.ArrayObj; 271 const void *elemMap; 272 GLint i, k; 273 274 if (_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj)) { 275 elemMap = ctx->Driver.MapBufferRange(ctx, 0, 276 ctx->Array.ArrayObj->ElementArrayBufferObj->Size, 277 GL_MAP_READ_BIT, 278 ctx->Array.ArrayObj->ElementArrayBufferObj); 279 elements = ADD_POINTERS(elements, elemMap); 280 } 281 282 for (i = 0; i < count; i++) { 283 GLuint j; 284 285 /* j = element[i] */ 286 switch (elemType) { 287 case GL_UNSIGNED_BYTE: 288 j = ((const GLubyte *) elements)[i]; 289 break; 290 case GL_UNSIGNED_SHORT: 291 j = ((const GLushort *) elements)[i]; 292 break; 293 case GL_UNSIGNED_INT: 294 j = ((const GLuint *) elements)[i]; 295 break; 296 default: 297 assert(0); 298 } 299 300 /* check element j of each enabled array */ 301 for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) { 302 check_array_data(ctx, &arrayObj->VertexAttrib[k], k, j); 303 } 304 } 305 306 if (_mesa_is_bufferobj(arrayObj->ElementArrayBufferObj)) { 307 ctx->Driver.UnmapBuffer(ctx, ctx->Array.ArrayObj->ElementArrayBufferObj); 308 } 309 310 for (k = 0; k < Elements(arrayObj->VertexAttrib); k++) { 311 unmap_array_buffer(ctx, &arrayObj->VertexAttrib[k]); 312 } 313} 314 315 316/** 317 * Check array data, looking for NaNs, etc. 318 */ 319static void 320check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count) 321{ 322 /* TO DO */ 323} 324 325 326/** 327 * Print info/data for glDrawArrays(), for debugging. 328 */ 329static void 330print_draw_arrays(struct gl_context *ctx, 331 GLenum mode, GLint start, GLsizei count) 332{ 333 struct vbo_context *vbo = vbo_context(ctx); 334 struct vbo_exec_context *exec = &vbo->exec; 335 int i; 336 337 printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n", 338 mode, start, count); 339 340 for (i = 0; i < 32; i++) { 341 struct gl_buffer_object *bufObj = exec->array.inputs[i]->BufferObj; 342 GLuint bufName = bufObj->Name; 343 GLint stride = exec->array.inputs[i]->Stride; 344 printf("attr %2d: size %d stride %d enabled %d " 345 "ptr %p Bufobj %u\n", 346 i, 347 exec->array.inputs[i]->Size, 348 stride, 349 /*exec->array.inputs[i]->Enabled,*/ 350 exec->array.legacy_array[i]->Enabled, 351 exec->array.inputs[i]->Ptr, 352 bufName); 353 354 if (bufName) { 355 GLubyte *p = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size, 356 GL_MAP_READ_BIT, bufObj); 357 int offset = (int) (GLintptr) exec->array.inputs[i]->Ptr; 358 float *f = (float *) (p + offset); 359 int *k = (int *) f; 360 int i; 361 int n = (count * stride) / 4; 362 if (n > 32) 363 n = 32; 364 printf(" Data at offset %d:\n", offset); 365 for (i = 0; i < n; i++) { 366 printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]); 367 } 368 ctx->Driver.UnmapBuffer(ctx, bufObj); 369 } 370 } 371} 372 373 374/** 375 * Bind the VBO executor to the current vertex array object prior 376 * to drawing. 377 * 378 * Just translate the arrayobj into a sane layout. 379 */ 380static void 381bind_array_obj(struct gl_context *ctx) 382{ 383 struct vbo_context *vbo = vbo_context(ctx); 384 struct vbo_exec_context *exec = &vbo->exec; 385 struct gl_array_object *arrayObj = ctx->Array.ArrayObj; 386 GLuint i; 387 388 for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) 389 exec->array.legacy_array[i] = &arrayObj->VertexAttrib[VERT_ATTRIB_FF(i)]; 390 391 for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; i++) { 392 assert(i < Elements(exec->array.generic_array)); 393 exec->array.generic_array[i] = &arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(i)]; 394 } 395} 396 397 398/** 399 * Set the vbo->exec->inputs[] pointers to point to the enabled 400 * vertex arrays. This depends on the current vertex program/shader 401 * being executed because of whether or not generic vertex arrays 402 * alias the conventional vertex arrays. 403 * For arrays that aren't enabled, we set the input[attrib] pointer 404 * to point at a zero-stride current value "array". 405 */ 406static void 407recalculate_input_bindings(struct gl_context *ctx) 408{ 409 struct vbo_context *vbo = vbo_context(ctx); 410 struct vbo_exec_context *exec = &vbo->exec; 411 const struct gl_client_array **inputs = &exec->array.inputs[0]; 412 GLbitfield64 const_inputs = 0x0; 413 GLuint i; 414 415 switch (get_program_mode(ctx)) { 416 case VP_NONE: 417 /* When no vertex program is active (or the vertex program is generated 418 * from fixed-function state). We put the material values into the 419 * generic slots. This is the only situation where material values 420 * are available as per-vertex attributes. 421 */ 422 for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) { 423 if (exec->array.legacy_array[i]->Enabled) 424 inputs[i] = exec->array.legacy_array[i]; 425 else { 426 inputs[i] = &vbo->legacy_currval[i]; 427 const_inputs |= VERT_BIT(i); 428 } 429 } 430 431 for (i = 0; i < MAT_ATTRIB_MAX; i++) { 432 inputs[VERT_ATTRIB_GENERIC(i)] = &vbo->mat_currval[i]; 433 const_inputs |= VERT_BIT_GENERIC(i); 434 } 435 436 /* Could use just about anything, just to fill in the empty 437 * slots: 438 */ 439 for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_GENERIC_MAX; i++) { 440 inputs[VERT_ATTRIB_GENERIC(i)] = &vbo->generic_currval[i]; 441 const_inputs |= VERT_BIT_GENERIC(i); 442 } 443 444 /* There is no need to make _NEW_ARRAY dirty here for the TnL program, 445 * because it already takes care of invalidating the state necessary 446 * to revalidate vertex arrays. Not marking the state as dirty also 447 * improves performance (quite significantly in some apps). 448 */ 449 if (!ctx->VertexProgram._MaintainTnlProgram) 450 ctx->NewState |= _NEW_ARRAY; 451 break; 452 453 case VP_NV: 454 /* NV_vertex_program - attribute arrays alias and override 455 * conventional, legacy arrays. No materials, and the generic 456 * slots are vacant. 457 */ 458 for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) { 459 if (i < VERT_ATTRIB_GENERIC_MAX 460 && exec->array.generic_array[i]->Enabled) 461 inputs[i] = exec->array.generic_array[i]; 462 else if (exec->array.legacy_array[i]->Enabled) 463 inputs[i] = exec->array.legacy_array[i]; 464 else { 465 inputs[i] = &vbo->legacy_currval[i]; 466 const_inputs |= VERT_BIT_FF(i); 467 } 468 } 469 470 /* Could use just about anything, just to fill in the empty 471 * slots: 472 */ 473 for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; i++) { 474 inputs[VERT_ATTRIB_GENERIC(i)] = &vbo->generic_currval[i]; 475 const_inputs |= VERT_BIT_GENERIC(i); 476 } 477 478 ctx->NewState |= _NEW_ARRAY; 479 break; 480 481 case VP_ARB: 482 /* GL_ARB_vertex_program or GLSL vertex shader - Only the generic[0] 483 * attribute array aliases and overrides the legacy position array. 484 * 485 * Otherwise, legacy attributes available in the legacy slots, 486 * generic attributes in the generic slots and materials are not 487 * available as per-vertex attributes. 488 */ 489 if (exec->array.generic_array[0]->Enabled) 490 inputs[0] = exec->array.generic_array[0]; 491 else if (exec->array.legacy_array[0]->Enabled) 492 inputs[0] = exec->array.legacy_array[0]; 493 else { 494 inputs[0] = &vbo->legacy_currval[0]; 495 const_inputs |= VERT_BIT_POS; 496 } 497 498 for (i = 1; i < VERT_ATTRIB_FF_MAX; i++) { 499 if (exec->array.legacy_array[i]->Enabled) 500 inputs[i] = exec->array.legacy_array[i]; 501 else { 502 inputs[i] = &vbo->legacy_currval[i]; 503 const_inputs |= VERT_BIT_FF(i); 504 } 505 } 506 507 for (i = 1; i < VERT_ATTRIB_GENERIC_MAX; i++) { 508 if (exec->array.generic_array[i]->Enabled) 509 inputs[VERT_ATTRIB_GENERIC(i)] = exec->array.generic_array[i]; 510 else { 511 inputs[VERT_ATTRIB_GENERIC(i)] = &vbo->generic_currval[i]; 512 const_inputs |= VERT_BIT_GENERIC(i); 513 } 514 } 515 516 inputs[VERT_ATTRIB_GENERIC0] = inputs[0]; 517 ctx->NewState |= _NEW_ARRAY; 518 break; 519 } 520 521 _mesa_set_varying_vp_inputs( ctx, VERT_BIT_ALL & (~const_inputs) ); 522} 523 524 525/** 526 * Examine the enabled vertex arrays to set the exec->array.inputs[] values. 527 * These will point to the arrays to actually use for drawing. Some will 528 * be user-provided arrays, other will be zero-stride const-valued arrays. 529 * Note that this might set the _NEW_ARRAY dirty flag so state validation 530 * must be done after this call. 531 */ 532void 533vbo_bind_arrays(struct gl_context *ctx) 534{ 535 if (!ctx->Array.RebindArrays) { 536 return; 537 } 538 539 bind_array_obj(ctx); 540 recalculate_input_bindings(ctx); 541 ctx->Array.RebindArrays = GL_FALSE; 542} 543 544 545/** 546 * Helper function called by the other DrawArrays() functions below. 547 * This is where we handle primitive restart for drawing non-indexed 548 * arrays. If primitive restart is enabled, it typically means 549 * splitting one DrawArrays() into two. 550 */ 551static void 552vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start, 553 GLsizei count, GLuint numInstances) 554{ 555 struct vbo_context *vbo = vbo_context(ctx); 556 struct vbo_exec_context *exec = &vbo->exec; 557 struct _mesa_prim prim[2]; 558 559 vbo_bind_arrays(ctx); 560 561 vbo_draw_method(exec, DRAW_ARRAYS); 562 563 /* Again... because we may have changed the bitmask of per-vertex varying 564 * attributes. If we regenerate the fixed-function vertex program now 565 * we may be able to prune down the number of vertex attributes which we 566 * need in the shader. 567 */ 568 if (ctx->NewState) 569 _mesa_update_state(ctx); 570 571 /* init most fields to zero */ 572 memset(prim, 0, sizeof(prim)); 573 prim[0].begin = 1; 574 prim[0].end = 1; 575 prim[0].mode = mode; 576 prim[0].num_instances = numInstances; 577 578 /* Implement the primitive restart index */ 579 if (ctx->Array.PrimitiveRestart && ctx->Array.RestartIndex < count) { 580 GLuint primCount = 0; 581 582 if (ctx->Array.RestartIndex == start) { 583 /* special case: RestartIndex at beginning */ 584 if (count > 1) { 585 prim[0].start = start + 1; 586 prim[0].count = count - 1; 587 primCount = 1; 588 } 589 } 590 else if (ctx->Array.RestartIndex == start + count - 1) { 591 /* special case: RestartIndex at end */ 592 if (count > 1) { 593 prim[0].start = start; 594 prim[0].count = count - 1; 595 primCount = 1; 596 } 597 } 598 else { 599 /* general case: RestartIndex in middle, split into two prims */ 600 prim[0].start = start; 601 prim[0].count = ctx->Array.RestartIndex - start; 602 603 prim[1] = prim[0]; 604 prim[1].start = ctx->Array.RestartIndex + 1; 605 prim[1].count = count - prim[1].start; 606 607 primCount = 2; 608 } 609 610 if (primCount > 0) { 611 /* draw one or two prims */ 612 check_buffers_are_unmapped(exec->array.inputs); 613 vbo->draw_prims(ctx, exec->array.inputs, prim, primCount, NULL, 614 GL_TRUE, start, start + count - 1, NULL); 615 } 616 } 617 else { 618 /* no prim restart */ 619 prim[0].start = start; 620 prim[0].count = count; 621 622 check_buffers_are_unmapped(exec->array.inputs); 623 vbo->draw_prims(ctx, exec->array.inputs, prim, 1, NULL, 624 GL_TRUE, start, start + count - 1, 625 NULL); 626 } 627} 628 629 630 631/** 632 * Called from glDrawArrays when in immediate mode (not display list mode). 633 */ 634static void GLAPIENTRY 635vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count) 636{ 637 GET_CURRENT_CONTEXT(ctx); 638 639 if (MESA_VERBOSE & VERBOSE_DRAW) 640 _mesa_debug(ctx, "glDrawArrays(%s, %d, %d)\n", 641 _mesa_lookup_enum_by_nr(mode), start, count); 642 643 if (!_mesa_validate_DrawArrays( ctx, mode, start, count )) 644 return; 645 646 FLUSH_CURRENT( ctx, 0 ); 647 648 if (!_mesa_valid_to_render(ctx, "glDrawArrays")) { 649 return; 650 } 651 652 if (0) 653 check_draw_arrays_data(ctx, start, count); 654 655 vbo_draw_arrays(ctx, mode, start, count, 1); 656 657 if (0) 658 print_draw_arrays(ctx, mode, start, count); 659} 660 661 662/** 663 * Called from glDrawArraysInstanced when in immediate mode (not 664 * display list mode). 665 */ 666static void GLAPIENTRY 667vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count, 668 GLsizei numInstances) 669{ 670 GET_CURRENT_CONTEXT(ctx); 671 672 if (MESA_VERBOSE & VERBOSE_DRAW) 673 _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n", 674 _mesa_lookup_enum_by_nr(mode), start, count, numInstances); 675 676 if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, numInstances)) 677 return; 678 679 FLUSH_CURRENT( ctx, 0 ); 680 681 if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) { 682 return; 683 } 684 685 if (0) 686 check_draw_arrays_data(ctx, start, count); 687 688 vbo_draw_arrays(ctx, mode, start, count, numInstances); 689 690 if (0) 691 print_draw_arrays(ctx, mode, start, count); 692} 693 694 695/** 696 * Map GL_ELEMENT_ARRAY_BUFFER and print contents. 697 * For debugging. 698 */ 699static void 700dump_element_buffer(struct gl_context *ctx, GLenum type) 701{ 702 const GLvoid *map = 703 ctx->Driver.MapBufferRange(ctx, 0, 704 ctx->Array.ArrayObj->ElementArrayBufferObj->Size, 705 GL_MAP_READ_BIT, 706 ctx->Array.ArrayObj->ElementArrayBufferObj); 707 switch (type) { 708 case GL_UNSIGNED_BYTE: 709 { 710 const GLubyte *us = (const GLubyte *) map; 711 GLint i; 712 for (i = 0; i < ctx->Array.ArrayObj->ElementArrayBufferObj->Size; i++) { 713 printf("%02x ", us[i]); 714 if (i % 32 == 31) 715 printf("\n"); 716 } 717 printf("\n"); 718 } 719 break; 720 case GL_UNSIGNED_SHORT: 721 { 722 const GLushort *us = (const GLushort *) map; 723 GLint i; 724 for (i = 0; i < ctx->Array.ArrayObj->ElementArrayBufferObj->Size / 2; i++) { 725 printf("%04x ", us[i]); 726 if (i % 16 == 15) 727 printf("\n"); 728 } 729 printf("\n"); 730 } 731 break; 732 case GL_UNSIGNED_INT: 733 { 734 const GLuint *us = (const GLuint *) map; 735 GLint i; 736 for (i = 0; i < ctx->Array.ArrayObj->ElementArrayBufferObj->Size / 4; i++) { 737 printf("%08x ", us[i]); 738 if (i % 8 == 7) 739 printf("\n"); 740 } 741 printf("\n"); 742 } 743 break; 744 default: 745 ; 746 } 747 748 ctx->Driver.UnmapBuffer(ctx, ctx->Array.ArrayObj->ElementArrayBufferObj); 749} 750 751 752/** 753 * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements. 754 * Do the rendering for a glDrawElements or glDrawRangeElements call after 755 * we've validated buffer bounds, etc. 756 */ 757static void 758vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode, 759 GLboolean index_bounds_valid, 760 GLuint start, GLuint end, 761 GLsizei count, GLenum type, 762 const GLvoid *indices, 763 GLint basevertex, GLint numInstances) 764{ 765 struct vbo_context *vbo = vbo_context(ctx); 766 struct vbo_exec_context *exec = &vbo->exec; 767 struct _mesa_index_buffer ib; 768 struct _mesa_prim prim[1]; 769 770 FLUSH_CURRENT( ctx, 0 ); 771 772 if (!_mesa_valid_to_render(ctx, "glDraw[Range]Elements")) { 773 return; 774 } 775 776 vbo_bind_arrays( ctx ); 777 778 vbo_draw_method(exec, DRAW_ARRAYS); 779 780 /* check for dirty state again */ 781 if (ctx->NewState) 782 _mesa_update_state( ctx ); 783 784 ib.count = count; 785 ib.type = type; 786 ib.obj = ctx->Array.ArrayObj->ElementArrayBufferObj; 787 ib.ptr = indices; 788 789 prim[0].begin = 1; 790 prim[0].end = 1; 791 prim[0].weak = 0; 792 prim[0].pad = 0; 793 prim[0].mode = mode; 794 prim[0].start = 0; 795 prim[0].count = count; 796 prim[0].indexed = 1; 797 prim[0].basevertex = basevertex; 798 prim[0].num_instances = numInstances; 799 800 /* Need to give special consideration to rendering a range of 801 * indices starting somewhere above zero. Typically the 802 * application is issuing multiple DrawRangeElements() to draw 803 * successive primitives layed out linearly in the vertex arrays. 804 * Unless the vertex arrays are all in a VBO (or locked as with 805 * CVA), the OpenGL semantics imply that we need to re-read or 806 * re-upload the vertex data on each draw call. 807 * 808 * In the case of hardware tnl, we want to avoid starting the 809 * upload at zero, as it will mean every draw call uploads an 810 * increasing amount of not-used vertex data. Worse - in the 811 * software tnl module, all those vertices might be transformed and 812 * lit but never rendered. 813 * 814 * If we just upload or transform the vertices in start..end, 815 * however, the indices will be incorrect. 816 * 817 * At this level, we don't know exactly what the requirements of 818 * the backend are going to be, though it will likely boil down to 819 * either: 820 * 821 * 1) Do nothing, everything is in a VBO and is processed once 822 * only. 823 * 824 * 2) Adjust the indices and vertex arrays so that start becomes 825 * zero. 826 * 827 * Rather than doing anything here, I'll provide a helper function 828 * for the latter case elsewhere. 829 */ 830 831 check_buffers_are_unmapped(exec->array.inputs); 832 vbo->draw_prims( ctx, exec->array.inputs, prim, 1, &ib, 833 index_bounds_valid, start, end, NULL ); 834} 835 836 837/** 838 * Called by glDrawRangeElementsBaseVertex() in immediate mode. 839 */ 840static void GLAPIENTRY 841vbo_exec_DrawRangeElementsBaseVertex(GLenum mode, 842 GLuint start, GLuint end, 843 GLsizei count, GLenum type, 844 const GLvoid *indices, 845 GLint basevertex) 846{ 847 static GLuint warnCount = 0; 848 GET_CURRENT_CONTEXT(ctx); 849 850 if (MESA_VERBOSE & VERBOSE_DRAW) 851 _mesa_debug(ctx, 852 "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n", 853 _mesa_lookup_enum_by_nr(mode), start, end, count, 854 _mesa_lookup_enum_by_nr(type), indices, basevertex); 855 856 if (!_mesa_validate_DrawRangeElements( ctx, mode, start, end, count, 857 type, indices, basevertex )) 858 return; 859 860 /* NOTE: It's important that 'end' is a reasonable value. 861 * in _tnl_draw_prims(), we use end to determine how many vertices 862 * to transform. If it's too large, we can unnecessarily split prims 863 * or we can read/write out of memory in several different places! 864 */ 865 866 /* Catch/fix some potential user errors */ 867 if (type == GL_UNSIGNED_BYTE) { 868 start = MIN2(start, 0xff); 869 end = MIN2(end, 0xff); 870 } 871 else if (type == GL_UNSIGNED_SHORT) { 872 start = MIN2(start, 0xffff); 873 end = MIN2(end, 0xffff); 874 } 875 876 if (end >= ctx->Array.ArrayObj->_MaxElement) { 877 /* the max element is out of bounds of one or more enabled arrays */ 878 warnCount++; 879 880 if (warnCount < 10) { 881 _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, count %d, " 882 "type 0x%x, indices=%p)\n" 883 "\tend is out of bounds (max=%u) " 884 "Element Buffer %u (size %d)\n" 885 "\tThis should probably be fixed in the application.", 886 start, end, count, type, indices, 887 ctx->Array.ArrayObj->_MaxElement - 1, 888 ctx->Array.ArrayObj->ElementArrayBufferObj->Name, 889 (int) ctx->Array.ArrayObj->ElementArrayBufferObj->Size); 890 } 891 892 if (0) 893 dump_element_buffer(ctx, type); 894 895 if (0) 896 _mesa_print_arrays(ctx); 897 898 /* 'end' was out of bounds, but now let's check the actual array 899 * indexes to see if any of them are out of bounds. 900 */ 901 if (0) { 902 GLuint max = _mesa_max_buffer_index(ctx, count, type, indices, 903 ctx->Array.ArrayObj->ElementArrayBufferObj); 904 if (max >= ctx->Array.ArrayObj->_MaxElement) { 905 if (warnCount < 10) { 906 _mesa_warning(ctx, "glDraw[Range]Elements(start %u, end %u, " 907 "count %d, type 0x%x, indices=%p)\n" 908 "\tindex=%u is out of bounds (max=%u) " 909 "Element Buffer %u (size %d)\n" 910 "\tSkipping the glDrawRangeElements() call", 911 start, end, count, type, indices, max, 912 ctx->Array.ArrayObj->_MaxElement - 1, 913 ctx->Array.ArrayObj->ElementArrayBufferObj->Name, 914 (int) ctx->Array.ArrayObj->ElementArrayBufferObj->Size); 915 } 916 } 917 /* XXX we could also find the min index and compare to 'start' 918 * to see if start is correct. But it's more likely to get the 919 * upper bound wrong. 920 */ 921 } 922 923 /* Set 'end' to the max possible legal value */ 924 assert(ctx->Array.ArrayObj->_MaxElement >= 1); 925 end = ctx->Array.ArrayObj->_MaxElement - 1; 926 927 if (end < start) { 928 return; 929 } 930 } 931 932 if (0) { 933 printf("glDraw[Range]Elements{,BaseVertex}" 934 "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, " 935 "base %d\n", 936 start, end, type, count, 937 ctx->Array.ArrayObj->ElementArrayBufferObj->Name, 938 basevertex); 939 } 940 941#if 0 942 check_draw_elements_data(ctx, count, type, indices); 943#else 944 (void) check_draw_elements_data; 945#endif 946 947 vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end, 948 count, type, indices, basevertex, 1); 949} 950 951 952/** 953 * Called by glDrawRangeElements() in immediate mode. 954 */ 955static void GLAPIENTRY 956vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end, 957 GLsizei count, GLenum type, const GLvoid *indices) 958{ 959 if (MESA_VERBOSE & VERBOSE_DRAW) { 960 GET_CURRENT_CONTEXT(ctx); 961 _mesa_debug(ctx, 962 "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n", 963 _mesa_lookup_enum_by_nr(mode), start, end, count, 964 _mesa_lookup_enum_by_nr(type), indices); 965 } 966 967 vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, 968 indices, 0); 969} 970 971 972/** 973 * Called by glDrawElements() in immediate mode. 974 */ 975static void GLAPIENTRY 976vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type, 977 const GLvoid *indices) 978{ 979 GET_CURRENT_CONTEXT(ctx); 980 981 if (MESA_VERBOSE & VERBOSE_DRAW) 982 _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", 983 _mesa_lookup_enum_by_nr(mode), count, 984 _mesa_lookup_enum_by_nr(type), indices); 985 986 if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 0 )) 987 return; 988 989 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, 990 count, type, indices, 0, 1); 991} 992 993 994/** 995 * Called by glDrawElementsBaseVertex() in immediate mode. 996 */ 997static void GLAPIENTRY 998vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, 999 const GLvoid *indices, GLint basevertex) 1000{ 1001 GET_CURRENT_CONTEXT(ctx); 1002 1003 if (MESA_VERBOSE & VERBOSE_DRAW) 1004 _mesa_debug(ctx, "glDrawElementsBaseVertex(%s, %d, %s, %p, %d)\n", 1005 _mesa_lookup_enum_by_nr(mode), count, 1006 _mesa_lookup_enum_by_nr(type), indices, basevertex); 1007 1008 if (!_mesa_validate_DrawElements( ctx, mode, count, type, indices, 1009 basevertex )) 1010 return; 1011 1012 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, 1013 count, type, indices, basevertex, 1); 1014} 1015 1016 1017/** 1018 * Called by glDrawElementsInstanced() in immediate mode. 1019 */ 1020static void GLAPIENTRY 1021vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, 1022 const GLvoid *indices, GLsizei numInstances) 1023{ 1024 GET_CURRENT_CONTEXT(ctx); 1025 1026 if (MESA_VERBOSE & VERBOSE_DRAW) 1027 _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n", 1028 _mesa_lookup_enum_by_nr(mode), count, 1029 _mesa_lookup_enum_by_nr(type), indices, numInstances); 1030 1031 if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices, 1032 numInstances, 0)) 1033 return; 1034 1035 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, 1036 count, type, indices, 0, numInstances); 1037} 1038 1039/** 1040 * Called by glDrawElementsInstancedBaseVertex() in immediate mode. 1041 */ 1042static void GLAPIENTRY 1043vbo_exec_DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, GLenum type, 1044 const GLvoid *indices, GLsizei numInstances, 1045 GLint basevertex) 1046{ 1047 GET_CURRENT_CONTEXT(ctx); 1048 1049 if (MESA_VERBOSE & VERBOSE_DRAW) 1050 _mesa_debug(ctx, "glDrawElementsInstancedBaseVertex(%s, %d, %s, %p, %d; %d)\n", 1051 _mesa_lookup_enum_by_nr(mode), count, 1052 _mesa_lookup_enum_by_nr(type), indices, 1053 numInstances, basevertex); 1054 1055 if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices, 1056 numInstances, basevertex)) 1057 return; 1058 1059 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0, 1060 count, type, indices, basevertex, numInstances); 1061} 1062 1063 1064/** 1065 * Inner support for both _mesa_MultiDrawElements() and 1066 * _mesa_MultiDrawRangeElements(). 1067 * This does the actual rendering after we've checked array indexes, etc. 1068 */ 1069static void 1070vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode, 1071 const GLsizei *count, GLenum type, 1072 const GLvoid **indices, GLsizei primcount, 1073 const GLint *basevertex) 1074{ 1075 struct vbo_context *vbo = vbo_context(ctx); 1076 struct vbo_exec_context *exec = &vbo->exec; 1077 struct _mesa_index_buffer ib; 1078 struct _mesa_prim *prim; 1079 unsigned int index_type_size = 0; 1080 uintptr_t min_index_ptr, max_index_ptr; 1081 GLboolean fallback = GL_FALSE; 1082 int i; 1083 1084 if (primcount == 0) 1085 return; 1086 1087 FLUSH_CURRENT( ctx, 0 ); 1088 1089 if (!_mesa_valid_to_render(ctx, "glMultiDrawElements")) { 1090 return; 1091 } 1092 1093 prim = calloc(1, primcount * sizeof(*prim)); 1094 if (prim == NULL) { 1095 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements"); 1096 return; 1097 } 1098 1099 /* Decide if we can do this all as one set of primitives sharing the 1100 * same index buffer, or if we have to reset the index pointer per 1101 * primitive. 1102 */ 1103 vbo_bind_arrays( ctx ); 1104 1105 /* check for dirty state again */ 1106 if (ctx->NewState) 1107 _mesa_update_state( ctx ); 1108 1109 switch (type) { 1110 case GL_UNSIGNED_INT: 1111 index_type_size = 4; 1112 break; 1113 case GL_UNSIGNED_SHORT: 1114 index_type_size = 2; 1115 break; 1116 case GL_UNSIGNED_BYTE: 1117 index_type_size = 1; 1118 break; 1119 default: 1120 assert(0); 1121 } 1122 1123 min_index_ptr = (uintptr_t)indices[0]; 1124 max_index_ptr = 0; 1125 for (i = 0; i < primcount; i++) { 1126 min_index_ptr = MIN2(min_index_ptr, (uintptr_t)indices[i]); 1127 max_index_ptr = MAX2(max_index_ptr, (uintptr_t)indices[i] + 1128 index_type_size * count[i]); 1129 } 1130 1131 /* Check if we can handle this thing as a bunch of index offsets from the 1132 * same index pointer. If we can't, then we have to fall back to doing 1133 * a draw_prims per primitive. 1134 * Check that the difference between each prim's indexes is a multiple of 1135 * the index/element size. 1136 */ 1137 if (index_type_size != 1) { 1138 for (i = 0; i < primcount; i++) { 1139 if ((((uintptr_t)indices[i] - min_index_ptr) % index_type_size) != 0) { 1140 fallback = GL_TRUE; 1141 break; 1142 } 1143 } 1144 } 1145 1146 /* If the index buffer isn't in a VBO, then treating the application's 1147 * subranges of the index buffer as one large index buffer may lead to 1148 * us reading unmapped memory. 1149 */ 1150 if (!_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj)) 1151 fallback = GL_TRUE; 1152 1153 if (!fallback) { 1154 ib.count = (max_index_ptr - min_index_ptr) / index_type_size; 1155 ib.type = type; 1156 ib.obj = ctx->Array.ArrayObj->ElementArrayBufferObj; 1157 ib.ptr = (void *)min_index_ptr; 1158 1159 for (i = 0; i < primcount; i++) { 1160 prim[i].begin = (i == 0); 1161 prim[i].end = (i == primcount - 1); 1162 prim[i].weak = 0; 1163 prim[i].pad = 0; 1164 prim[i].mode = mode; 1165 prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size; 1166 prim[i].count = count[i]; 1167 prim[i].indexed = 1; 1168 prim[i].num_instances = 1; 1169 if (basevertex != NULL) 1170 prim[i].basevertex = basevertex[i]; 1171 else 1172 prim[i].basevertex = 0; 1173 } 1174 1175 check_buffers_are_unmapped(exec->array.inputs); 1176 vbo->draw_prims(ctx, exec->array.inputs, prim, primcount, &ib, 1177 GL_FALSE, ~0, ~0, NULL); 1178 } else { 1179 /* render one prim at a time */ 1180 for (i = 0; i < primcount; i++) { 1181 ib.count = count[i]; 1182 ib.type = type; 1183 ib.obj = ctx->Array.ArrayObj->ElementArrayBufferObj; 1184 ib.ptr = indices[i]; 1185 1186 prim[0].begin = 1; 1187 prim[0].end = 1; 1188 prim[0].weak = 0; 1189 prim[0].pad = 0; 1190 prim[0].mode = mode; 1191 prim[0].start = 0; 1192 prim[0].count = count[i]; 1193 prim[0].indexed = 1; 1194 prim[0].num_instances = 1; 1195 if (basevertex != NULL) 1196 prim[0].basevertex = basevertex[i]; 1197 else 1198 prim[0].basevertex = 0; 1199 1200 check_buffers_are_unmapped(exec->array.inputs); 1201 vbo->draw_prims(ctx, exec->array.inputs, prim, 1, &ib, 1202 GL_FALSE, ~0, ~0, NULL); 1203 } 1204 } 1205 1206 free(prim); 1207} 1208 1209 1210static void GLAPIENTRY 1211vbo_exec_MultiDrawElements(GLenum mode, 1212 const GLsizei *count, GLenum type, 1213 const GLvoid **indices, 1214 GLsizei primcount) 1215{ 1216 GET_CURRENT_CONTEXT(ctx); 1217 GLint i; 1218 1219 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 1220 1221 for (i = 0; i < primcount; i++) { 1222 if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i], 1223 0)) 1224 return; 1225 } 1226 1227 vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, 1228 NULL); 1229} 1230 1231 1232static void GLAPIENTRY 1233vbo_exec_MultiDrawElementsBaseVertex(GLenum mode, 1234 const GLsizei *count, GLenum type, 1235 const GLvoid **indices, 1236 GLsizei primcount, 1237 const GLsizei *basevertex) 1238{ 1239 GET_CURRENT_CONTEXT(ctx); 1240 GLint i; 1241 1242 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 1243 1244 for (i = 0; i < primcount; i++) { 1245 if (!_mesa_validate_DrawElements(ctx, mode, count[i], type, indices[i], 1246 basevertex[i])) 1247 return; 1248 } 1249 1250 vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, 1251 basevertex); 1252} 1253 1254#if FEATURE_EXT_transform_feedback 1255 1256static void 1257vbo_draw_transform_feedback(struct gl_context *ctx, GLenum mode, 1258 struct gl_transform_feedback_object *obj, 1259 GLuint numInstances) 1260{ 1261 struct vbo_context *vbo = vbo_context(ctx); 1262 struct vbo_exec_context *exec = &vbo->exec; 1263 struct _mesa_prim prim[2]; 1264 1265 vbo_bind_arrays(ctx); 1266 1267 /* Again... because we may have changed the bitmask of per-vertex varying 1268 * attributes. If we regenerate the fixed-function vertex program now 1269 * we may be able to prune down the number of vertex attributes which we 1270 * need in the shader. 1271 */ 1272 if (ctx->NewState) 1273 _mesa_update_state(ctx); 1274 1275 /* init most fields to zero */ 1276 memset(prim, 0, sizeof(prim)); 1277 prim[0].begin = 1; 1278 prim[0].end = 1; 1279 prim[0].mode = mode; 1280 prim[0].num_instances = numInstances; 1281 1282 /* Maybe we should do some primitive splitting for primitive restart 1283 * (like in DrawArrays), but we have no way to know how many vertices 1284 * will be rendered. */ 1285 1286 check_buffers_are_unmapped(exec->array.inputs); 1287 vbo->draw_prims(ctx, exec->array.inputs, prim, 1, NULL, 1288 GL_TRUE, 0, 0, obj); 1289} 1290 1291/** 1292 * Like DrawArrays, but take the count from a transform feedback object. 1293 * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc. 1294 * \param name the transform feedback object 1295 * User still has to setup of the vertex attribute info with 1296 * glVertexPointer, glColorPointer, etc. 1297 * Part of GL_ARB_transform_feedback2. 1298 */ 1299static void GLAPIENTRY 1300vbo_exec_DrawTransformFeedback(GLenum mode, GLuint name) 1301{ 1302 GET_CURRENT_CONTEXT(ctx); 1303 struct gl_transform_feedback_object *obj = 1304 _mesa_lookup_transform_feedback_object(ctx, name); 1305 1306 if (MESA_VERBOSE & VERBOSE_DRAW) 1307 _mesa_debug(ctx, "glDrawTransformFeedback(%s, %d)\n", 1308 _mesa_lookup_enum_by_nr(mode), name); 1309 1310 if (!_mesa_validate_DrawTransformFeedback(ctx, mode, obj)) { 1311 return; 1312 } 1313 1314 FLUSH_CURRENT(ctx, 0); 1315 1316 if (!_mesa_valid_to_render(ctx, "glDrawTransformFeedback")) { 1317 return; 1318 } 1319 1320 vbo_draw_transform_feedback(ctx, mode, obj, 1); 1321} 1322 1323#endif 1324 1325/** 1326 * Plug in the immediate-mode vertex array drawing commands into the 1327 * givven vbo_exec_context object. 1328 */ 1329void 1330vbo_exec_array_init( struct vbo_exec_context *exec ) 1331{ 1332 exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays; 1333 exec->vtxfmt.DrawElements = vbo_exec_DrawElements; 1334 exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements; 1335 exec->vtxfmt.MultiDrawElementsEXT = vbo_exec_MultiDrawElements; 1336 exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex; 1337 exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex; 1338 exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex; 1339 exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced; 1340 exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced; 1341 exec->vtxfmt.DrawElementsInstancedBaseVertex = vbo_exec_DrawElementsInstancedBaseVertex; 1342 exec->vtxfmt.DrawTransformFeedback = vbo_exec_DrawTransformFeedback; 1343} 1344 1345 1346void 1347vbo_exec_array_destroy( struct vbo_exec_context *exec ) 1348{ 1349 /* nothing to do */ 1350} 1351 1352 1353 1354/** 1355 * The following functions are only used for OpenGL ES 1/2 support. 1356 * And some aren't even supported (yet) in ES 1/2. 1357 */ 1358 1359 1360void GLAPIENTRY 1361_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count) 1362{ 1363 vbo_exec_DrawArrays(mode, first, count); 1364} 1365 1366 1367void GLAPIENTRY 1368_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type, 1369 const GLvoid *indices) 1370{ 1371 vbo_exec_DrawElements(mode, count, type, indices); 1372} 1373 1374 1375void GLAPIENTRY 1376_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, 1377 const GLvoid *indices, GLint basevertex) 1378{ 1379 vbo_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex); 1380} 1381 1382 1383void GLAPIENTRY 1384_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, 1385 GLenum type, const GLvoid *indices) 1386{ 1387 vbo_exec_DrawRangeElements(mode, start, end, count, type, indices); 1388} 1389 1390 1391void GLAPIENTRY 1392_mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, 1393 GLsizei count, GLenum type, 1394 const GLvoid *indices, GLint basevertex) 1395{ 1396 vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, 1397 indices, basevertex); 1398} 1399 1400 1401void GLAPIENTRY 1402_mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type, 1403 const GLvoid **indices, GLsizei primcount) 1404{ 1405 vbo_exec_MultiDrawElements(mode, count, type, indices, primcount); 1406} 1407 1408 1409void GLAPIENTRY 1410_mesa_MultiDrawElementsBaseVertex(GLenum mode, 1411 const GLsizei *count, GLenum type, 1412 const GLvoid **indices, GLsizei primcount, 1413 const GLint *basevertex) 1414{ 1415 vbo_exec_MultiDrawElementsBaseVertex(mode, count, type, indices, 1416 primcount, basevertex); 1417} 1418 1419#if FEATURE_EXT_transform_feedback 1420 1421void GLAPIENTRY 1422_mesa_DrawTransformFeedback(GLenum mode, GLuint name) 1423{ 1424 vbo_exec_DrawTransformFeedback(mode, name); 1425} 1426 1427#endif 1428