1 /************************************************************************** 2 * 3 * Copyright 2003 VMware, Inc. 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 VMWARE 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 <stdio.h> 30 #include "main/arrayobj.h" 31 #include "main/glheader.h" 32 #include "main/context.h" 33 #include "main/state.h" 34 #include "main/api_validate.h" 35 #include "main/dispatch.h" 36 #include "main/varray.h" 37 #include "main/bufferobj.h" 38 #include "main/enums.h" 39 #include "main/macros.h" 40 #include "main/transformfeedback.h" 41 42 #include "vbo_context.h" 43 44 45 /** 46 * Check that element 'j' of the array has reasonable data. 47 * Map VBO if needed. 48 * For debugging purposes; not normally used. 49 */ 50 static void 51 check_array_data(struct gl_context *ctx, struct gl_vertex_array_object *vao, 52 GLuint attrib, GLuint j) 53 { 54 const struct gl_array_attributes *array = &vao->VertexAttrib[attrib]; 55 if (array->Enabled) { 56 const struct gl_vertex_buffer_binding *binding = 57 &vao->BufferBinding[array->BufferBindingIndex]; 58 struct gl_buffer_object *bo = binding->BufferObj; 59 const void *data = array->Ptr; 60 if (_mesa_is_bufferobj(bo)) { 61 if (!bo->Mappings[MAP_INTERNAL].Pointer) { 62 /* need to map now */ 63 bo->Mappings[MAP_INTERNAL].Pointer = 64 ctx->Driver.MapBufferRange(ctx, 0, bo->Size, 65 GL_MAP_READ_BIT, bo, MAP_INTERNAL); 66 } 67 data = ADD_POINTERS(_mesa_vertex_attrib_address(array, binding), 68 bo->Mappings[MAP_INTERNAL].Pointer); 69 } 70 switch (array->Type) { 71 case GL_FLOAT: 72 { 73 GLfloat *f = (GLfloat *) ((GLubyte *) data + binding->Stride * j); 74 GLint k; 75 for (k = 0; k < array->Size; k++) { 76 if (IS_INF_OR_NAN(f[k]) || f[k] >= 1.0e20F || f[k] <= -1.0e10F) { 77 printf("Bad array data:\n"); 78 printf(" Element[%u].%u = %f\n", j, k, f[k]); 79 printf(" Array %u at %p\n", attrib, (void *) array); 80 printf(" Type 0x%x, Size %d, Stride %d\n", 81 array->Type, array->Size, binding->Stride); 82 printf(" Address/offset %p in Buffer Object %u\n", 83 array->Ptr, bo->Name); 84 f[k] = 1.0F; /* XXX replace the bad value! */ 85 } 86 /*assert(!IS_INF_OR_NAN(f[k])); */ 87 } 88 } 89 break; 90 default: 91 ; 92 } 93 } 94 } 95 96 97 /** 98 * Unmap the buffer object referenced by given array, if mapped. 99 */ 100 static void 101 unmap_array_buffer(struct gl_context *ctx, struct gl_vertex_array_object *vao, 102 GLuint attrib) 103 { 104 const struct gl_array_attributes *array = &vao->VertexAttrib[attrib]; 105 if (array->Enabled) { 106 const struct gl_vertex_buffer_binding *binding = 107 &vao->BufferBinding[array->BufferBindingIndex]; 108 struct gl_buffer_object *bo = binding->BufferObj; 109 if (_mesa_is_bufferobj(bo) && _mesa_bufferobj_mapped(bo, MAP_INTERNAL)) { 110 ctx->Driver.UnmapBuffer(ctx, bo, MAP_INTERNAL); 111 } 112 } 113 } 114 115 116 /** 117 * Examine the array's data for NaNs, etc. 118 * For debug purposes; not normally used. 119 */ 120 static void 121 check_draw_elements_data(struct gl_context *ctx, GLsizei count, 122 GLenum elemType, const void *elements, 123 GLint basevertex) 124 { 125 struct gl_vertex_array_object *vao = ctx->Array.VAO; 126 const void *elemMap; 127 GLint i; 128 GLuint k; 129 130 if (_mesa_is_bufferobj(vao->IndexBufferObj)) { 131 elemMap = ctx->Driver.MapBufferRange(ctx, 0, 132 vao->IndexBufferObj->Size, 133 GL_MAP_READ_BIT, 134 vao->IndexBufferObj, MAP_INTERNAL); 135 elements = ADD_POINTERS(elements, elemMap); 136 } 137 138 for (i = 0; i < count; i++) { 139 GLuint j; 140 141 /* j = element[i] */ 142 switch (elemType) { 143 case GL_UNSIGNED_BYTE: 144 j = ((const GLubyte *) elements)[i]; 145 break; 146 case GL_UNSIGNED_SHORT: 147 j = ((const GLushort *) elements)[i]; 148 break; 149 case GL_UNSIGNED_INT: 150 j = ((const GLuint *) elements)[i]; 151 break; 152 default: 153 assert(0); 154 } 155 156 /* check element j of each enabled array */ 157 for (k = 0; k < VERT_ATTRIB_MAX; k++) { 158 check_array_data(ctx, vao, k, j); 159 } 160 } 161 162 if (_mesa_is_bufferobj(vao->IndexBufferObj)) { 163 ctx->Driver.UnmapBuffer(ctx, vao->IndexBufferObj, MAP_INTERNAL); 164 } 165 166 for (k = 0; k < VERT_ATTRIB_MAX; k++) { 167 unmap_array_buffer(ctx, vao, k); 168 } 169 } 170 171 172 /** 173 * Check array data, looking for NaNs, etc. 174 */ 175 static void 176 check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count) 177 { 178 /* TO DO */ 179 } 180 181 182 /** 183 * Check if we should skip the draw call even after validation was successful. 184 */ 185 static bool 186 skip_validated_draw(struct gl_context *ctx) 187 { 188 switch (ctx->API) { 189 case API_OPENGLES2: 190 /* For ES2, we can draw if we have a vertex program/shader). */ 191 return ctx->VertexProgram._Current == NULL; 192 193 case API_OPENGLES: 194 /* For OpenGL ES, only draw if we have vertex positions 195 */ 196 if (!ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POS].Enabled) 197 return true; 198 break; 199 200 case API_OPENGL_CORE: 201 /* Section 7.3 (Program Objects) of the OpenGL 4.5 Core Profile spec 202 * says: 203 * 204 * "If there is no active program for the vertex or fragment shader 205 * stages, the results of vertex and/or fragment processing will be 206 * undefined. However, this is not an error." 207 * 208 * The fragment shader is not tested here because other state (e.g., 209 * GL_RASTERIZER_DISCARD) affects whether or not we actually care. 210 */ 211 return ctx->VertexProgram._Current == NULL; 212 213 case API_OPENGL_COMPAT: 214 if (ctx->VertexProgram._Current != NULL) { 215 /* Draw regardless of whether or not we have any vertex arrays. 216 * (Ex: could draw a point using a constant vertex pos) 217 */ 218 return false; 219 } else { 220 /* Draw if we have vertex positions (GL_VERTEX_ARRAY or generic 221 * array [0]). 222 */ 223 return (!ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_POS].Enabled && 224 !ctx->Array.VAO->VertexAttrib[VERT_ATTRIB_GENERIC0].Enabled); 225 } 226 break; 227 228 default: 229 unreachable("Invalid API value in check_valid_to_render()"); 230 } 231 232 return false; 233 } 234 235 236 /** 237 * Print info/data for glDrawArrays(), for debugging. 238 */ 239 static void 240 print_draw_arrays(struct gl_context *ctx, 241 GLenum mode, GLint start, GLsizei count) 242 { 243 const struct gl_vertex_array_object *vao = ctx->Array.VAO; 244 245 printf("vbo_exec_DrawArrays(mode 0x%x, start %d, count %d):\n", 246 mode, start, count); 247 248 unsigned i; 249 for (i = 0; i < VERT_ATTRIB_MAX; ++i) { 250 const struct gl_array_attributes *array = &vao->VertexAttrib[i]; 251 if (!array->Enabled) 252 continue; 253 254 const struct gl_vertex_buffer_binding *binding = 255 &vao->BufferBinding[array->BufferBindingIndex]; 256 struct gl_buffer_object *bufObj = binding->BufferObj; 257 258 printf("attr %s: size %d stride %d enabled %d " 259 "ptr %p Bufobj %u\n", 260 gl_vert_attrib_name((gl_vert_attrib) i), 261 array->Size, binding->Stride, array->Enabled, 262 array->Ptr, bufObj->Name); 263 264 if (_mesa_is_bufferobj(bufObj)) { 265 GLubyte *p = ctx->Driver.MapBufferRange(ctx, 0, bufObj->Size, 266 GL_MAP_READ_BIT, bufObj, 267 MAP_INTERNAL); 268 int offset = (int) (GLintptr) 269 _mesa_vertex_attrib_address(array, binding); 270 float *f = (float *) (p + offset); 271 int *k = (int *) f; 272 int i; 273 int n = (count * binding->Stride) / 4; 274 if (n > 32) 275 n = 32; 276 printf(" Data at offset %d:\n", offset); 277 for (i = 0; i < n; i++) { 278 printf(" float[%d] = 0x%08x %f\n", i, k[i], f[i]); 279 } 280 ctx->Driver.UnmapBuffer(ctx, bufObj, MAP_INTERNAL); 281 } 282 } 283 } 284 285 286 /** 287 * Set the vbo->exec->inputs[] pointers to point to the enabled 288 * vertex arrays. This depends on the current vertex program/shader 289 * being executed because of whether or not generic vertex arrays 290 * alias the conventional vertex arrays. 291 * For arrays that aren't enabled, we set the input[attrib] pointer 292 * to point at a zero-stride current value "array". 293 */ 294 static void 295 recalculate_input_bindings(struct gl_context *ctx) 296 { 297 struct vbo_context *vbo = vbo_context(ctx); 298 struct vbo_exec_context *exec = &vbo->exec; 299 const struct gl_array_attributes *array = ctx->Array.VAO->VertexAttrib; 300 struct gl_vertex_array *vertexAttrib = ctx->Array.VAO->_VertexAttrib; 301 const struct gl_vertex_array **inputs = &exec->array.inputs[0]; 302 GLbitfield const_inputs = 0x0; 303 GLuint i; 304 305 switch (get_program_mode(ctx)) { 306 case VP_NONE: 307 /* When no vertex program is active (or the vertex program is generated 308 * from fixed-function state). We put the material values into the 309 * generic slots. This is the only situation where material values 310 * are available as per-vertex attributes. 311 */ 312 for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) { 313 if (array[VERT_ATTRIB_FF(i)].Enabled) 314 inputs[i] = &vertexAttrib[VERT_ATTRIB_FF(i)]; 315 else { 316 inputs[i] = &vbo->currval[VBO_ATTRIB_POS + i]; 317 const_inputs |= VERT_BIT(i); 318 } 319 } 320 321 for (i = 0; i < MAT_ATTRIB_MAX; i++) { 322 inputs[VERT_ATTRIB_GENERIC(i)] = 323 &vbo->currval[VBO_ATTRIB_MAT_FRONT_AMBIENT + i]; 324 const_inputs |= VERT_BIT_GENERIC(i); 325 } 326 327 /* Could use just about anything, just to fill in the empty 328 * slots: 329 */ 330 for (i = MAT_ATTRIB_MAX; i < VERT_ATTRIB_GENERIC_MAX; i++) { 331 inputs[VERT_ATTRIB_GENERIC(i)] = 332 &vbo->currval[VBO_ATTRIB_GENERIC0 + i]; 333 const_inputs |= VERT_BIT_GENERIC(i); 334 } 335 break; 336 337 case VP_ARB: 338 /* There are no shaders in OpenGL ES 1.x, so this code path should be 339 * impossible to reach. The meta code is careful to not use shaders in 340 * ES1. 341 */ 342 assert(ctx->API != API_OPENGLES); 343 344 /* In the compatibility profile of desktop OpenGL, the generic[0] 345 * attribute array aliases and overrides the legacy position array. 346 * Otherwise, legacy attributes available in the legacy slots, 347 * generic attributes in the generic slots and materials are not 348 * available as per-vertex attributes. 349 * 350 * In all other APIs, only the generic attributes exist, and none of the 351 * slots are considered "magic." 352 */ 353 if (ctx->API == API_OPENGL_COMPAT) { 354 if (array[VERT_ATTRIB_GENERIC0].Enabled) 355 inputs[0] = &vertexAttrib[VERT_ATTRIB_GENERIC0]; 356 else if (array[VERT_ATTRIB_POS].Enabled) 357 inputs[0] = &vertexAttrib[VERT_ATTRIB_POS]; 358 else { 359 inputs[0] = &vbo->currval[VBO_ATTRIB_GENERIC0]; 360 const_inputs |= VERT_BIT_POS; 361 } 362 363 for (i = 1; i < VERT_ATTRIB_FF_MAX; i++) { 364 if (array[VERT_ATTRIB_FF(i)].Enabled) 365 inputs[i] = &vertexAttrib[VERT_ATTRIB_FF(i)]; 366 else { 367 inputs[i] = &vbo->currval[VBO_ATTRIB_POS + i]; 368 const_inputs |= VERT_BIT_FF(i); 369 } 370 } 371 372 for (i = 1; i < VERT_ATTRIB_GENERIC_MAX; i++) { 373 if (array[VERT_ATTRIB_GENERIC(i)].Enabled) 374 inputs[VERT_ATTRIB_GENERIC(i)] = 375 &vertexAttrib[VERT_ATTRIB_GENERIC(i)]; 376 else { 377 inputs[VERT_ATTRIB_GENERIC(i)] = 378 &vbo->currval[VBO_ATTRIB_GENERIC0 + i]; 379 const_inputs |= VERT_BIT_GENERIC(i); 380 } 381 } 382 383 inputs[VERT_ATTRIB_GENERIC0] = inputs[0]; 384 } else { 385 /* Other parts of the code assume that inputs[0] through 386 * inputs[VERT_ATTRIB_FF_MAX] will be non-NULL. However, in OpenGL 387 * ES 2.0+ or OpenGL core profile, none of these arrays should ever 388 * be enabled. 389 */ 390 for (i = 0; i < VERT_ATTRIB_FF_MAX; i++) { 391 assert(!array[VERT_ATTRIB_FF(i)].Enabled); 392 393 inputs[i] = &vbo->currval[VBO_ATTRIB_POS + i]; 394 const_inputs |= VERT_BIT_FF(i); 395 } 396 397 for (i = 0; i < VERT_ATTRIB_GENERIC_MAX; i++) { 398 if (array[VERT_ATTRIB_GENERIC(i)].Enabled) 399 inputs[VERT_ATTRIB_GENERIC(i)] = 400 &vertexAttrib[VERT_ATTRIB_GENERIC(i)]; 401 else { 402 inputs[VERT_ATTRIB_GENERIC(i)] = 403 &vbo->currval[VBO_ATTRIB_GENERIC0 + i]; 404 const_inputs |= VERT_BIT_GENERIC(i); 405 } 406 } 407 } 408 409 break; 410 } 411 412 _mesa_set_varying_vp_inputs(ctx, VERT_BIT_ALL & (~const_inputs)); 413 ctx->NewDriverState |= ctx->DriverFlags.NewArray; 414 } 415 416 417 /** 418 * Examine the enabled vertex arrays to set the exec->array.inputs[] values. 419 * These will point to the arrays to actually use for drawing. Some will 420 * be user-provided arrays, other will be zero-stride const-valued arrays. 421 * Note that this might set the _NEW_VARYING_VP_INPUTS dirty flag so state 422 * validation must be done after this call. 423 */ 424 static void 425 vbo_bind_arrays(struct gl_context *ctx) 426 { 427 struct vbo_context *vbo = vbo_context(ctx); 428 struct vbo_exec_context *exec = &vbo->exec; 429 430 vbo_draw_method(vbo, DRAW_ARRAYS); 431 432 if (exec->array.recalculate_inputs) { 433 recalculate_input_bindings(ctx); 434 exec->array.recalculate_inputs = GL_FALSE; 435 436 /* Again... because we may have changed the bitmask of per-vertex varying 437 * attributes. If we regenerate the fixed-function vertex program now 438 * we may be able to prune down the number of vertex attributes which we 439 * need in the shader. 440 */ 441 if (ctx->NewState) { 442 /* Setting "validating" to TRUE prevents _mesa_update_state from 443 * invalidating what we just did. 444 */ 445 exec->validating = GL_TRUE; 446 _mesa_update_state(ctx); 447 exec->validating = GL_FALSE; 448 } 449 } 450 } 451 452 453 /** 454 * Helper function called by the other DrawArrays() functions below. 455 * This is where we handle primitive restart for drawing non-indexed 456 * arrays. If primitive restart is enabled, it typically means 457 * splitting one DrawArrays() into two. 458 */ 459 static void 460 vbo_draw_arrays(struct gl_context *ctx, GLenum mode, GLint start, 461 GLsizei count, GLuint numInstances, GLuint baseInstance, 462 GLuint drawID) 463 { 464 struct vbo_context *vbo = vbo_context(ctx); 465 struct _mesa_prim prim; 466 467 if (skip_validated_draw(ctx)) 468 return; 469 470 vbo_bind_arrays(ctx); 471 472 /* OpenGL 4.5 says that primitive restart is ignored with non-indexed 473 * draws. 474 */ 475 memset(&prim, 0, sizeof(prim)); 476 prim.begin = 1; 477 prim.end = 1; 478 prim.mode = mode; 479 prim.num_instances = numInstances; 480 prim.base_instance = baseInstance; 481 prim.draw_id = drawID; 482 prim.is_indirect = 0; 483 prim.start = start; 484 prim.count = count; 485 486 vbo->draw_prims(ctx, &prim, 1, NULL, 487 GL_TRUE, start, start + count - 1, NULL, 0, NULL); 488 489 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { 490 _mesa_flush(ctx); 491 } 492 } 493 494 495 /** 496 * Execute a glRectf() function. 497 */ 498 static void GLAPIENTRY 499 vbo_exec_Rectf(GLfloat x1, GLfloat y1, GLfloat x2, GLfloat y2) 500 { 501 GET_CURRENT_CONTEXT(ctx); 502 ASSERT_OUTSIDE_BEGIN_END(ctx); 503 504 CALL_Begin(GET_DISPATCH(), (GL_QUADS)); 505 CALL_Vertex2f(GET_DISPATCH(), (x1, y1)); 506 CALL_Vertex2f(GET_DISPATCH(), (x2, y1)); 507 CALL_Vertex2f(GET_DISPATCH(), (x2, y2)); 508 CALL_Vertex2f(GET_DISPATCH(), (x1, y2)); 509 CALL_End(GET_DISPATCH(), ()); 510 } 511 512 513 static void GLAPIENTRY 514 vbo_exec_EvalMesh1(GLenum mode, GLint i1, GLint i2) 515 { 516 GET_CURRENT_CONTEXT(ctx); 517 GLint i; 518 GLfloat u, du; 519 GLenum prim; 520 521 switch (mode) { 522 case GL_POINT: 523 prim = GL_POINTS; 524 break; 525 case GL_LINE: 526 prim = GL_LINE_STRIP; 527 break; 528 default: 529 _mesa_error(ctx, GL_INVALID_ENUM, "glEvalMesh1(mode)"); 530 return; 531 } 532 533 /* No effect if vertex maps disabled. 534 */ 535 if (!ctx->Eval.Map1Vertex4 && !ctx->Eval.Map1Vertex3) 536 return; 537 538 du = ctx->Eval.MapGrid1du; 539 u = ctx->Eval.MapGrid1u1 + i1 * du; 540 541 CALL_Begin(GET_DISPATCH(), (prim)); 542 for (i = i1; i <= i2; i++, u += du) { 543 CALL_EvalCoord1f(GET_DISPATCH(), (u)); 544 } 545 CALL_End(GET_DISPATCH(), ()); 546 } 547 548 549 static void GLAPIENTRY 550 vbo_exec_EvalMesh2(GLenum mode, GLint i1, GLint i2, GLint j1, GLint j2) 551 { 552 GET_CURRENT_CONTEXT(ctx); 553 GLfloat u, du, v, dv, v1, u1; 554 GLint i, j; 555 556 switch (mode) { 557 case GL_POINT: 558 case GL_LINE: 559 case GL_FILL: 560 break; 561 default: 562 _mesa_error(ctx, GL_INVALID_ENUM, "glEvalMesh2(mode)"); 563 return; 564 } 565 566 /* No effect if vertex maps disabled. 567 */ 568 if (!ctx->Eval.Map2Vertex4 && !ctx->Eval.Map2Vertex3) 569 return; 570 571 du = ctx->Eval.MapGrid2du; 572 dv = ctx->Eval.MapGrid2dv; 573 v1 = ctx->Eval.MapGrid2v1 + j1 * dv; 574 u1 = ctx->Eval.MapGrid2u1 + i1 * du; 575 576 switch (mode) { 577 case GL_POINT: 578 CALL_Begin(GET_DISPATCH(), (GL_POINTS)); 579 for (v = v1, j = j1; j <= j2; j++, v += dv) { 580 for (u = u1, i = i1; i <= i2; i++, u += du) { 581 CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); 582 } 583 } 584 CALL_End(GET_DISPATCH(), ()); 585 break; 586 case GL_LINE: 587 for (v = v1, j = j1; j <= j2; j++, v += dv) { 588 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP)); 589 for (u = u1, i = i1; i <= i2; i++, u += du) { 590 CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); 591 } 592 CALL_End(GET_DISPATCH(), ()); 593 } 594 for (u = u1, i = i1; i <= i2; i++, u += du) { 595 CALL_Begin(GET_DISPATCH(), (GL_LINE_STRIP)); 596 for (v = v1, j = j1; j <= j2; j++, v += dv) { 597 CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); 598 } 599 CALL_End(GET_DISPATCH(), ()); 600 } 601 break; 602 case GL_FILL: 603 for (v = v1, j = j1; j < j2; j++, v += dv) { 604 CALL_Begin(GET_DISPATCH(), (GL_TRIANGLE_STRIP)); 605 for (u = u1, i = i1; i <= i2; i++, u += du) { 606 CALL_EvalCoord2f(GET_DISPATCH(), (u, v)); 607 CALL_EvalCoord2f(GET_DISPATCH(), (u, v + dv)); 608 } 609 CALL_End(GET_DISPATCH(), ()); 610 } 611 break; 612 } 613 } 614 615 616 /** 617 * Called from glDrawArrays when in immediate mode (not display list mode). 618 */ 619 static void GLAPIENTRY 620 vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count) 621 { 622 GET_CURRENT_CONTEXT(ctx); 623 624 if (MESA_VERBOSE & VERBOSE_DRAW) 625 _mesa_debug(ctx, "glDrawArrays(%s, %d, %d)\n", 626 _mesa_enum_to_string(mode), start, count); 627 628 if (_mesa_is_no_error_enabled(ctx)) { 629 FLUSH_CURRENT(ctx, 0); 630 631 if (ctx->NewState) 632 _mesa_update_state(ctx); 633 } else { 634 if (!_mesa_validate_DrawArrays(ctx, mode, count)) 635 return; 636 } 637 638 if (0) 639 check_draw_arrays_data(ctx, start, count); 640 641 vbo_draw_arrays(ctx, mode, start, count, 1, 0, 0); 642 643 if (0) 644 print_draw_arrays(ctx, mode, start, count); 645 } 646 647 648 /** 649 * Called from glDrawArraysInstanced when in immediate mode (not 650 * display list mode). 651 */ 652 static void GLAPIENTRY 653 vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count, 654 GLsizei numInstances) 655 { 656 GET_CURRENT_CONTEXT(ctx); 657 658 if (MESA_VERBOSE & VERBOSE_DRAW) 659 _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n", 660 _mesa_enum_to_string(mode), start, count, numInstances); 661 662 663 if (_mesa_is_no_error_enabled(ctx)) { 664 FLUSH_CURRENT(ctx, 0); 665 666 if (ctx->NewState) 667 _mesa_update_state(ctx); 668 } else { 669 if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, 670 numInstances)) 671 return; 672 } 673 674 if (0) 675 check_draw_arrays_data(ctx, start, count); 676 677 vbo_draw_arrays(ctx, mode, start, count, numInstances, 0, 0); 678 679 if (0) 680 print_draw_arrays(ctx, mode, start, count); 681 } 682 683 684 /** 685 * Called from glDrawArraysInstancedBaseInstance when in immediate mode. 686 */ 687 static void GLAPIENTRY 688 vbo_exec_DrawArraysInstancedBaseInstance(GLenum mode, GLint first, 689 GLsizei count, GLsizei numInstances, 690 GLuint baseInstance) 691 { 692 GET_CURRENT_CONTEXT(ctx); 693 694 if (MESA_VERBOSE & VERBOSE_DRAW) 695 _mesa_debug(ctx, 696 "glDrawArraysInstancedBaseInstance(%s, %d, %d, %d, %d)\n", 697 _mesa_enum_to_string(mode), first, count, 698 numInstances, baseInstance); 699 700 if (_mesa_is_no_error_enabled(ctx)) { 701 FLUSH_CURRENT(ctx, 0); 702 703 if (ctx->NewState) 704 _mesa_update_state(ctx); 705 } else { 706 if (!_mesa_validate_DrawArraysInstanced(ctx, mode, first, count, 707 numInstances)) 708 return; 709 } 710 711 if (0) 712 check_draw_arrays_data(ctx, first, count); 713 714 vbo_draw_arrays(ctx, mode, first, count, numInstances, baseInstance, 0); 715 716 if (0) 717 print_draw_arrays(ctx, mode, first, count); 718 } 719 720 721 /** 722 * Called from glMultiDrawArrays when in immediate mode. 723 */ 724 static void GLAPIENTRY 725 vbo_exec_MultiDrawArrays(GLenum mode, const GLint *first, 726 const GLsizei *count, GLsizei primcount) 727 { 728 GET_CURRENT_CONTEXT(ctx); 729 GLint i; 730 731 if (MESA_VERBOSE & VERBOSE_DRAW) 732 _mesa_debug(ctx, 733 "glMultiDrawArrays(%s, %p, %p, %d)\n", 734 _mesa_enum_to_string(mode), first, count, primcount); 735 736 if (_mesa_is_no_error_enabled(ctx)) { 737 FLUSH_CURRENT(ctx, 0); 738 739 if (ctx->NewState) 740 _mesa_update_state(ctx); 741 } else { 742 if (!_mesa_validate_MultiDrawArrays(ctx, mode, count, primcount)) 743 return; 744 } 745 746 for (i = 0; i < primcount; i++) { 747 if (count[i] > 0) { 748 if (0) 749 check_draw_arrays_data(ctx, first[i], count[i]); 750 751 /* The GL_ARB_shader_draw_parameters spec adds the following after the 752 * pseudo-code describing glMultiDrawArrays: 753 * 754 * "The index of the draw (<i> in the above pseudo-code) may be 755 * read by a vertex shader as <gl_DrawIDARB>, as described in 756 * Section 11.1.3.9." 757 */ 758 vbo_draw_arrays(ctx, mode, first[i], count[i], 1, 0, i); 759 760 if (0) 761 print_draw_arrays(ctx, mode, first[i], count[i]); 762 } 763 } 764 } 765 766 767 768 /** 769 * Map GL_ELEMENT_ARRAY_BUFFER and print contents. 770 * For debugging. 771 */ 772 #if 0 773 static void 774 dump_element_buffer(struct gl_context *ctx, GLenum type) 775 { 776 const GLvoid *map = 777 ctx->Driver.MapBufferRange(ctx, 0, 778 ctx->Array.VAO->IndexBufferObj->Size, 779 GL_MAP_READ_BIT, 780 ctx->Array.VAO->IndexBufferObj, 781 MAP_INTERNAL); 782 switch (type) { 783 case GL_UNSIGNED_BYTE: 784 { 785 const GLubyte *us = (const GLubyte *) map; 786 GLint i; 787 for (i = 0; i < ctx->Array.VAO->IndexBufferObj->Size; i++) { 788 printf("%02x ", us[i]); 789 if (i % 32 == 31) 790 printf("\n"); 791 } 792 printf("\n"); 793 } 794 break; 795 case GL_UNSIGNED_SHORT: 796 { 797 const GLushort *us = (const GLushort *) map; 798 GLint i; 799 for (i = 0; i < ctx->Array.VAO->IndexBufferObj->Size / 2; i++) { 800 printf("%04x ", us[i]); 801 if (i % 16 == 15) 802 printf("\n"); 803 } 804 printf("\n"); 805 } 806 break; 807 case GL_UNSIGNED_INT: 808 { 809 const GLuint *us = (const GLuint *) map; 810 GLint i; 811 for (i = 0; i < ctx->Array.VAO->IndexBufferObj->Size / 4; i++) { 812 printf("%08x ", us[i]); 813 if (i % 8 == 7) 814 printf("\n"); 815 } 816 printf("\n"); 817 } 818 break; 819 default: 820 ; 821 } 822 823 ctx->Driver.UnmapBuffer(ctx, ctx->Array.VAO->IndexBufferObj, MAP_INTERNAL); 824 } 825 #endif 826 827 828 static bool 829 skip_draw_elements(struct gl_context *ctx, GLsizei count, 830 const GLvoid *indices) 831 { 832 if (count == 0) 833 return true; 834 835 /* Not using a VBO for indices, so avoid NULL pointer derefs later. 836 */ 837 if (!_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj) && indices == NULL) 838 return true; 839 840 if (skip_validated_draw(ctx)) 841 return true; 842 843 return false; 844 } 845 846 847 /** 848 * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements. 849 * Do the rendering for a glDrawElements or glDrawRangeElements call after 850 * we've validated buffer bounds, etc. 851 */ 852 static void 853 vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode, 854 GLboolean index_bounds_valid, 855 GLuint start, GLuint end, 856 GLsizei count, GLenum type, 857 const GLvoid * indices, 858 GLint basevertex, GLuint numInstances, 859 GLuint baseInstance) 860 { 861 struct vbo_context *vbo = vbo_context(ctx); 862 struct _mesa_index_buffer ib; 863 struct _mesa_prim prim; 864 865 if (!index_bounds_valid) { 866 assert(start == 0u); 867 assert(end == ~0u); 868 } 869 870 if (skip_draw_elements(ctx, count, indices)) 871 return; 872 873 vbo_bind_arrays(ctx); 874 875 ib.count = count; 876 ib.index_size = vbo_sizeof_ib_type(type); 877 ib.obj = ctx->Array.VAO->IndexBufferObj; 878 ib.ptr = indices; 879 880 prim.begin = 1; 881 prim.end = 1; 882 prim.weak = 0; 883 prim.pad = 0; 884 prim.mode = mode; 885 prim.start = 0; 886 prim.count = count; 887 prim.indexed = 1; 888 prim.is_indirect = 0; 889 prim.basevertex = basevertex; 890 prim.num_instances = numInstances; 891 prim.base_instance = baseInstance; 892 prim.draw_id = 0; 893 894 /* Need to give special consideration to rendering a range of 895 * indices starting somewhere above zero. Typically the 896 * application is issuing multiple DrawRangeElements() to draw 897 * successive primitives layed out linearly in the vertex arrays. 898 * Unless the vertex arrays are all in a VBO (or locked as with 899 * CVA), the OpenGL semantics imply that we need to re-read or 900 * re-upload the vertex data on each draw call. 901 * 902 * In the case of hardware tnl, we want to avoid starting the 903 * upload at zero, as it will mean every draw call uploads an 904 * increasing amount of not-used vertex data. Worse - in the 905 * software tnl module, all those vertices might be transformed and 906 * lit but never rendered. 907 * 908 * If we just upload or transform the vertices in start..end, 909 * however, the indices will be incorrect. 910 * 911 * At this level, we don't know exactly what the requirements of 912 * the backend are going to be, though it will likely boil down to 913 * either: 914 * 915 * 1) Do nothing, everything is in a VBO and is processed once 916 * only. 917 * 918 * 2) Adjust the indices and vertex arrays so that start becomes 919 * zero. 920 * 921 * Rather than doing anything here, I'll provide a helper function 922 * for the latter case elsewhere. 923 */ 924 925 vbo->draw_prims(ctx, &prim, 1, &ib, 926 index_bounds_valid, start, end, NULL, 0, NULL); 927 928 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { 929 _mesa_flush(ctx); 930 } 931 } 932 933 934 /** 935 * Called by glDrawRangeElementsBaseVertex() in immediate mode. 936 */ 937 static void GLAPIENTRY 938 vbo_exec_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, 939 GLsizei count, GLenum type, 940 const GLvoid * indices, GLint basevertex) 941 { 942 static GLuint warnCount = 0; 943 GLboolean index_bounds_valid = GL_TRUE; 944 945 /* This is only useful to catch invalid values in the "end" parameter 946 * like ~0. 947 */ 948 GLuint max_element = 2 * 1000 * 1000 * 1000; /* just a big number */ 949 950 GET_CURRENT_CONTEXT(ctx); 951 952 if (MESA_VERBOSE & VERBOSE_DRAW) 953 _mesa_debug(ctx, 954 "glDrawRangeElementsBaseVertex(%s, %u, %u, %d, %s, %p, %d)\n", 955 _mesa_enum_to_string(mode), start, end, count, 956 _mesa_enum_to_string(type), indices, basevertex); 957 958 if (_mesa_is_no_error_enabled(ctx)) { 959 FLUSH_CURRENT(ctx, 0); 960 961 if (ctx->NewState) 962 _mesa_update_state(ctx); 963 } else { 964 if (!_mesa_validate_DrawRangeElements(ctx, mode, start, end, count, 965 type, indices)) 966 return; 967 } 968 969 if ((int) end + basevertex < 0 || start + basevertex >= max_element) { 970 /* The application requested we draw using a range of indices that's 971 * outside the bounds of the current VBO. This is invalid and appears 972 * to give undefined results. The safest thing to do is to simply 973 * ignore the range, in case the application botched their range tracking 974 * but did provide valid indices. Also issue a warning indicating that 975 * the application is broken. 976 */ 977 if (warnCount++ < 10) { 978 _mesa_warning(ctx, "glDrawRangeElements(start %u, end %u, " 979 "basevertex %d, count %d, type 0x%x, indices=%p):\n" 980 "\trange is outside VBO bounds (max=%u); ignoring.\n" 981 "\tThis should be fixed in the application.", 982 start, end, basevertex, count, type, indices, 983 max_element - 1); 984 } 985 index_bounds_valid = GL_FALSE; 986 } 987 988 /* NOTE: It's important that 'end' is a reasonable value. 989 * in _tnl_draw_prims(), we use end to determine how many vertices 990 * to transform. If it's too large, we can unnecessarily split prims 991 * or we can read/write out of memory in several different places! 992 */ 993 994 /* Catch/fix some potential user errors */ 995 if (type == GL_UNSIGNED_BYTE) { 996 start = MIN2(start, 0xff); 997 end = MIN2(end, 0xff); 998 } 999 else if (type == GL_UNSIGNED_SHORT) { 1000 start = MIN2(start, 0xffff); 1001 end = MIN2(end, 0xffff); 1002 } 1003 1004 if (0) { 1005 printf("glDraw[Range]Elements{,BaseVertex}" 1006 "(start %u, end %u, type 0x%x, count %d) ElemBuf %u, " 1007 "base %d\n", 1008 start, end, type, count, 1009 ctx->Array.VAO->IndexBufferObj->Name, basevertex); 1010 } 1011 1012 if ((int) start + basevertex < 0 || end + basevertex >= max_element) 1013 index_bounds_valid = GL_FALSE; 1014 1015 #if 0 1016 check_draw_elements_data(ctx, count, type, indices, basevertex); 1017 #else 1018 (void) check_draw_elements_data; 1019 #endif 1020 1021 if (!index_bounds_valid) { 1022 start = 0; 1023 end = ~0; 1024 } 1025 1026 vbo_validated_drawrangeelements(ctx, mode, index_bounds_valid, start, end, 1027 count, type, indices, basevertex, 1, 0); 1028 } 1029 1030 1031 /** 1032 * Called by glDrawRangeElements() in immediate mode. 1033 */ 1034 static void GLAPIENTRY 1035 vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end, 1036 GLsizei count, GLenum type, const GLvoid * indices) 1037 { 1038 if (MESA_VERBOSE & VERBOSE_DRAW) { 1039 GET_CURRENT_CONTEXT(ctx); 1040 _mesa_debug(ctx, 1041 "glDrawRangeElements(%s, %u, %u, %d, %s, %p)\n", 1042 _mesa_enum_to_string(mode), start, end, count, 1043 _mesa_enum_to_string(type), indices); 1044 } 1045 1046 vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, 1047 indices, 0); 1048 } 1049 1050 1051 /** 1052 * Called by glDrawElements() in immediate mode. 1053 */ 1054 static void GLAPIENTRY 1055 vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type, 1056 const GLvoid * indices) 1057 { 1058 GET_CURRENT_CONTEXT(ctx); 1059 1060 if (MESA_VERBOSE & VERBOSE_DRAW) 1061 _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", 1062 _mesa_enum_to_string(mode), count, 1063 _mesa_enum_to_string(type), indices); 1064 1065 if (_mesa_is_no_error_enabled(ctx)) { 1066 FLUSH_CURRENT(ctx, 0); 1067 1068 if (ctx->NewState) 1069 _mesa_update_state(ctx); 1070 } else { 1071 if (!_mesa_validate_DrawElements(ctx, mode, count, type, indices)) 1072 return; 1073 } 1074 1075 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, 1076 count, type, indices, 0, 1, 0); 1077 } 1078 1079 1080 /** 1081 * Called by glDrawElementsBaseVertex() in immediate mode. 1082 */ 1083 static void GLAPIENTRY 1084 vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, 1085 const GLvoid * indices, GLint basevertex) 1086 { 1087 GET_CURRENT_CONTEXT(ctx); 1088 1089 if (MESA_VERBOSE & VERBOSE_DRAW) 1090 _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", 1091 _mesa_enum_to_string(mode), count, 1092 _mesa_enum_to_string(type), indices); 1093 1094 if (_mesa_is_no_error_enabled(ctx)) { 1095 FLUSH_CURRENT(ctx, 0); 1096 1097 if (ctx->NewState) 1098 _mesa_update_state(ctx); 1099 } else { 1100 if (!_mesa_validate_DrawElements(ctx, mode, count, type, indices)) 1101 return; 1102 } 1103 1104 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, 1105 count, type, indices, basevertex, 1, 0); 1106 } 1107 1108 1109 /** 1110 * Called by glDrawElementsInstanced() in immediate mode. 1111 */ 1112 static void GLAPIENTRY 1113 vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type, 1114 const GLvoid * indices, GLsizei numInstances) 1115 { 1116 GET_CURRENT_CONTEXT(ctx); 1117 1118 if (MESA_VERBOSE & VERBOSE_DRAW) 1119 _mesa_debug(ctx, "glDrawElements(%s, %u, %s, %p)\n", 1120 _mesa_enum_to_string(mode), count, 1121 _mesa_enum_to_string(type), indices); 1122 1123 if (_mesa_is_no_error_enabled(ctx)) { 1124 FLUSH_CURRENT(ctx, 0); 1125 1126 if (ctx->NewState) 1127 _mesa_update_state(ctx); 1128 } else { 1129 if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, 1130 indices, numInstances)) 1131 return; 1132 } 1133 1134 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, 1135 count, type, indices, 0, numInstances, 0); 1136 } 1137 1138 1139 /** 1140 * Called by glDrawElementsInstancedBaseVertex() in immediate mode. 1141 */ 1142 static void GLAPIENTRY 1143 vbo_exec_DrawElementsInstancedBaseVertex(GLenum mode, GLsizei count, 1144 GLenum type, const GLvoid * indices, 1145 GLsizei numInstances, 1146 GLint basevertex) 1147 { 1148 GET_CURRENT_CONTEXT(ctx); 1149 1150 if (MESA_VERBOSE & VERBOSE_DRAW) 1151 _mesa_debug(ctx, 1152 "glDrawElementsInstancedBaseVertex" 1153 "(%s, %d, %s, %p, %d; %d)\n", 1154 _mesa_enum_to_string(mode), count, 1155 _mesa_enum_to_string(type), indices, 1156 numInstances, basevertex); 1157 1158 if (_mesa_is_no_error_enabled(ctx)) { 1159 FLUSH_CURRENT(ctx, 0); 1160 1161 if (ctx->NewState) 1162 _mesa_update_state(ctx); 1163 } else { 1164 if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, 1165 indices, numInstances)) 1166 return; 1167 } 1168 1169 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, 1170 count, type, indices, 1171 basevertex, numInstances, 0); 1172 } 1173 1174 1175 /** 1176 * Called by glDrawElementsInstancedBaseInstance() in immediate mode. 1177 */ 1178 static void GLAPIENTRY 1179 vbo_exec_DrawElementsInstancedBaseInstance(GLenum mode, GLsizei count, 1180 GLenum type, 1181 const GLvoid *indices, 1182 GLsizei numInstances, 1183 GLuint baseInstance) 1184 { 1185 GET_CURRENT_CONTEXT(ctx); 1186 1187 if (MESA_VERBOSE & VERBOSE_DRAW) 1188 _mesa_debug(ctx, 1189 "glDrawElementsInstancedBaseInstance" 1190 "(%s, %d, %s, %p, %d, %d)\n", 1191 _mesa_enum_to_string(mode), count, 1192 _mesa_enum_to_string(type), indices, 1193 numInstances, baseInstance); 1194 1195 if (_mesa_is_no_error_enabled(ctx)) { 1196 FLUSH_CURRENT(ctx, 0); 1197 1198 if (ctx->NewState) 1199 _mesa_update_state(ctx); 1200 } else { 1201 if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, 1202 indices, numInstances)) 1203 return; 1204 } 1205 1206 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, 1207 count, type, indices, 0, numInstances, 1208 baseInstance); 1209 } 1210 1211 1212 /** 1213 * Called by glDrawElementsInstancedBaseVertexBaseInstance() in immediate mode. 1214 */ 1215 static void GLAPIENTRY 1216 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance(GLenum mode, 1217 GLsizei count, 1218 GLenum type, 1219 const GLvoid *indices, 1220 GLsizei numInstances, 1221 GLint basevertex, 1222 GLuint baseInstance) 1223 { 1224 GET_CURRENT_CONTEXT(ctx); 1225 1226 if (MESA_VERBOSE & VERBOSE_DRAW) 1227 _mesa_debug(ctx, 1228 "glDrawElementsInstancedBaseVertexBaseInstance" 1229 "(%s, %d, %s, %p, %d, %d, %d)\n", 1230 _mesa_enum_to_string(mode), count, 1231 _mesa_enum_to_string(type), indices, 1232 numInstances, basevertex, baseInstance); 1233 1234 if (_mesa_is_no_error_enabled(ctx)) { 1235 FLUSH_CURRENT(ctx, 0); 1236 1237 if (ctx->NewState) 1238 _mesa_update_state(ctx); 1239 } else { 1240 if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, 1241 indices, numInstances)) 1242 return; 1243 } 1244 1245 vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, 0, ~0, 1246 count, type, indices, basevertex, 1247 numInstances, baseInstance); 1248 } 1249 1250 1251 /** 1252 * Inner support for both _mesa_MultiDrawElements() and 1253 * _mesa_MultiDrawRangeElements(). 1254 * This does the actual rendering after we've checked array indexes, etc. 1255 */ 1256 static void 1257 vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode, 1258 const GLsizei *count, GLenum type, 1259 const GLvoid * const *indices, 1260 GLsizei primcount, const GLint *basevertex) 1261 { 1262 struct vbo_context *vbo = vbo_context(ctx); 1263 struct _mesa_index_buffer ib; 1264 struct _mesa_prim *prim; 1265 unsigned int index_type_size = vbo_sizeof_ib_type(type); 1266 uintptr_t min_index_ptr, max_index_ptr; 1267 GLboolean fallback = GL_FALSE; 1268 int i; 1269 1270 if (primcount == 0) 1271 return; 1272 1273 prim = calloc(primcount, sizeof(*prim)); 1274 if (prim == NULL) { 1275 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glMultiDrawElements"); 1276 return; 1277 } 1278 1279 vbo_bind_arrays(ctx); 1280 1281 min_index_ptr = (uintptr_t) indices[0]; 1282 max_index_ptr = 0; 1283 for (i = 0; i < primcount; i++) { 1284 min_index_ptr = MIN2(min_index_ptr, (uintptr_t) indices[i]); 1285 max_index_ptr = MAX2(max_index_ptr, (uintptr_t) indices[i] + 1286 index_type_size * count[i]); 1287 } 1288 1289 /* Check if we can handle this thing as a bunch of index offsets from the 1290 * same index pointer. If we can't, then we have to fall back to doing 1291 * a draw_prims per primitive. 1292 * Check that the difference between each prim's indexes is a multiple of 1293 * the index/element size. 1294 */ 1295 if (index_type_size != 1) { 1296 for (i = 0; i < primcount; i++) { 1297 if ((((uintptr_t) indices[i] - min_index_ptr) % index_type_size) != 1298 0) { 1299 fallback = GL_TRUE; 1300 break; 1301 } 1302 } 1303 } 1304 1305 /* Draw primitives individually if one count is zero, so we can easily skip 1306 * that primitive. 1307 */ 1308 for (i = 0; i < primcount; i++) { 1309 if (count[i] == 0) { 1310 fallback = GL_TRUE; 1311 break; 1312 } 1313 } 1314 1315 /* If the index buffer isn't in a VBO, then treating the application's 1316 * subranges of the index buffer as one large index buffer may lead to 1317 * us reading unmapped memory. 1318 */ 1319 if (!_mesa_is_bufferobj(ctx->Array.VAO->IndexBufferObj)) 1320 fallback = GL_TRUE; 1321 1322 if (!fallback) { 1323 ib.count = (max_index_ptr - min_index_ptr) / index_type_size; 1324 ib.index_size = vbo_sizeof_ib_type(type); 1325 ib.obj = ctx->Array.VAO->IndexBufferObj; 1326 ib.ptr = (void *) min_index_ptr; 1327 1328 for (i = 0; i < primcount; i++) { 1329 prim[i].begin = (i == 0); 1330 prim[i].end = (i == primcount - 1); 1331 prim[i].weak = 0; 1332 prim[i].pad = 0; 1333 prim[i].mode = mode; 1334 prim[i].start = 1335 ((uintptr_t) indices[i] - min_index_ptr) / index_type_size; 1336 prim[i].count = count[i]; 1337 prim[i].indexed = 1; 1338 prim[i].num_instances = 1; 1339 prim[i].base_instance = 0; 1340 prim[i].draw_id = i; 1341 prim[i].is_indirect = 0; 1342 if (basevertex != NULL) 1343 prim[i].basevertex = basevertex[i]; 1344 else 1345 prim[i].basevertex = 0; 1346 } 1347 1348 vbo->draw_prims(ctx, prim, primcount, &ib, 1349 false, 0, ~0, NULL, 0, NULL); 1350 } 1351 else { 1352 /* render one prim at a time */ 1353 for (i = 0; i < primcount; i++) { 1354 if (count[i] == 0) 1355 continue; 1356 ib.count = count[i]; 1357 ib.index_size = vbo_sizeof_ib_type(type); 1358 ib.obj = ctx->Array.VAO->IndexBufferObj; 1359 ib.ptr = indices[i]; 1360 1361 prim[0].begin = 1; 1362 prim[0].end = 1; 1363 prim[0].weak = 0; 1364 prim[0].pad = 0; 1365 prim[0].mode = mode; 1366 prim[0].start = 0; 1367 prim[0].count = count[i]; 1368 prim[0].indexed = 1; 1369 prim[0].num_instances = 1; 1370 prim[0].base_instance = 0; 1371 prim[0].draw_id = i; 1372 prim[0].is_indirect = 0; 1373 if (basevertex != NULL) 1374 prim[0].basevertex = basevertex[i]; 1375 else 1376 prim[0].basevertex = 0; 1377 1378 vbo->draw_prims(ctx, prim, 1, &ib, false, 0, ~0, NULL, 0, NULL); 1379 } 1380 } 1381 1382 free(prim); 1383 1384 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { 1385 _mesa_flush(ctx); 1386 } 1387 } 1388 1389 1390 static void GLAPIENTRY 1391 vbo_exec_MultiDrawElements(GLenum mode, 1392 const GLsizei *count, GLenum type, 1393 const GLvoid * const *indices, GLsizei primcount) 1394 { 1395 GET_CURRENT_CONTEXT(ctx); 1396 1397 if (!_mesa_validate_MultiDrawElements(ctx, mode, count, type, indices, 1398 primcount)) 1399 return; 1400 1401 if (skip_validated_draw(ctx)) 1402 return; 1403 1404 vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, 1405 NULL); 1406 } 1407 1408 1409 static void GLAPIENTRY 1410 vbo_exec_MultiDrawElementsBaseVertex(GLenum mode, 1411 const GLsizei *count, GLenum type, 1412 const GLvoid * const *indices, 1413 GLsizei primcount, 1414 const GLsizei *basevertex) 1415 { 1416 GET_CURRENT_CONTEXT(ctx); 1417 1418 if (_mesa_is_no_error_enabled(ctx)) { 1419 FLUSH_CURRENT(ctx, 0); 1420 1421 if (ctx->NewState) 1422 _mesa_update_state(ctx); 1423 } else { 1424 if (!_mesa_validate_MultiDrawElements(ctx, mode, count, type, indices, 1425 primcount)) 1426 return; 1427 } 1428 1429 if (skip_validated_draw(ctx)) 1430 return; 1431 1432 vbo_validated_multidrawelements(ctx, mode, count, type, indices, primcount, 1433 basevertex); 1434 } 1435 1436 1437 static void 1438 vbo_draw_transform_feedback(struct gl_context *ctx, GLenum mode, 1439 struct gl_transform_feedback_object *obj, 1440 GLuint stream, GLuint numInstances) 1441 { 1442 struct vbo_context *vbo = vbo_context(ctx); 1443 struct _mesa_prim prim; 1444 1445 if (_mesa_is_no_error_enabled(ctx)) { 1446 FLUSH_CURRENT(ctx, 0); 1447 1448 if (ctx->NewState) 1449 _mesa_update_state(ctx); 1450 } else { 1451 if (!_mesa_validate_DrawTransformFeedback(ctx, mode, obj, stream, 1452 numInstances)) { 1453 return; 1454 } 1455 } 1456 1457 if (ctx->Driver.GetTransformFeedbackVertexCount && 1458 (ctx->Const.AlwaysUseGetTransformFeedbackVertexCount || 1459 !_mesa_all_varyings_in_vbos(ctx->Array.VAO))) { 1460 GLsizei n = 1461 ctx->Driver.GetTransformFeedbackVertexCount(ctx, obj, stream); 1462 vbo_draw_arrays(ctx, mode, 0, n, numInstances, 0, 0); 1463 return; 1464 } 1465 1466 if (skip_validated_draw(ctx)) 1467 return; 1468 1469 vbo_bind_arrays(ctx); 1470 1471 /* init most fields to zero */ 1472 memset(&prim, 0, sizeof(prim)); 1473 prim.begin = 1; 1474 prim.end = 1; 1475 prim.mode = mode; 1476 prim.num_instances = numInstances; 1477 prim.base_instance = 0; 1478 prim.is_indirect = 0; 1479 1480 /* Maybe we should do some primitive splitting for primitive restart 1481 * (like in DrawArrays), but we have no way to know how many vertices 1482 * will be rendered. */ 1483 1484 vbo->draw_prims(ctx, &prim, 1, NULL, GL_FALSE, 0, ~0, obj, stream, NULL); 1485 1486 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) { 1487 _mesa_flush(ctx); 1488 } 1489 } 1490 1491 1492 /** 1493 * Like DrawArrays, but take the count from a transform feedback object. 1494 * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc. 1495 * \param name the transform feedback object 1496 * User still has to setup of the vertex attribute info with 1497 * glVertexPointer, glColorPointer, etc. 1498 * Part of GL_ARB_transform_feedback2. 1499 */ 1500 static void GLAPIENTRY 1501 vbo_exec_DrawTransformFeedback(GLenum mode, GLuint name) 1502 { 1503 GET_CURRENT_CONTEXT(ctx); 1504 struct gl_transform_feedback_object *obj = 1505 _mesa_lookup_transform_feedback_object(ctx, name); 1506 1507 if (MESA_VERBOSE & VERBOSE_DRAW) 1508 _mesa_debug(ctx, "glDrawTransformFeedback(%s, %d)\n", 1509 _mesa_enum_to_string(mode), name); 1510 1511 vbo_draw_transform_feedback(ctx, mode, obj, 0, 1); 1512 } 1513 1514 1515 static void GLAPIENTRY 1516 vbo_exec_DrawTransformFeedbackStream(GLenum mode, GLuint name, GLuint stream) 1517 { 1518 GET_CURRENT_CONTEXT(ctx); 1519 struct gl_transform_feedback_object *obj = 1520 _mesa_lookup_transform_feedback_object(ctx, name); 1521 1522 if (MESA_VERBOSE & VERBOSE_DRAW) 1523 _mesa_debug(ctx, "glDrawTransformFeedbackStream(%s, %u, %u)\n", 1524 _mesa_enum_to_string(mode), name, stream); 1525 1526 vbo_draw_transform_feedback(ctx, mode, obj, stream, 1); 1527 } 1528 1529 1530 static void GLAPIENTRY 1531 vbo_exec_DrawTransformFeedbackInstanced(GLenum mode, GLuint name, 1532 GLsizei primcount) 1533 { 1534 GET_CURRENT_CONTEXT(ctx); 1535 struct gl_transform_feedback_object *obj = 1536 _mesa_lookup_transform_feedback_object(ctx, name); 1537 1538 if (MESA_VERBOSE & VERBOSE_DRAW) 1539 _mesa_debug(ctx, "glDrawTransformFeedbackInstanced(%s, %d)\n", 1540 _mesa_enum_to_string(mode), name); 1541 1542 vbo_draw_transform_feedback(ctx, mode, obj, 0, primcount); 1543 } 1544 1545 1546 static void GLAPIENTRY 1547 vbo_exec_DrawTransformFeedbackStreamInstanced(GLenum mode, GLuint name, 1548 GLuint stream, 1549 GLsizei primcount) 1550 { 1551 GET_CURRENT_CONTEXT(ctx); 1552 struct gl_transform_feedback_object *obj = 1553 _mesa_lookup_transform_feedback_object(ctx, name); 1554 1555 if (MESA_VERBOSE & VERBOSE_DRAW) 1556 _mesa_debug(ctx, "glDrawTransformFeedbackStreamInstanced" 1557 "(%s, %u, %u, %i)\n", 1558 _mesa_enum_to_string(mode), name, stream, primcount); 1559 1560 vbo_draw_transform_feedback(ctx, mode, obj, stream, primcount); 1561 } 1562 1563 1564 static void 1565 vbo_validated_drawarraysindirect(struct gl_context *ctx, 1566 GLenum mode, const GLvoid *indirect) 1567 { 1568 struct vbo_context *vbo = vbo_context(ctx); 1569 1570 vbo_bind_arrays(ctx); 1571 1572 vbo->draw_indirect_prims(ctx, mode, 1573 ctx->DrawIndirectBuffer, (GLsizeiptr) indirect, 1574 1 /* draw_count */ , 16 /* stride */ , 1575 NULL, 0, NULL); 1576 1577 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) 1578 _mesa_flush(ctx); 1579 } 1580 1581 1582 static void 1583 vbo_validated_multidrawarraysindirect(struct gl_context *ctx, 1584 GLenum mode, 1585 const GLvoid *indirect, 1586 GLsizei primcount, GLsizei stride) 1587 { 1588 struct vbo_context *vbo = vbo_context(ctx); 1589 GLsizeiptr offset = (GLsizeiptr) indirect; 1590 1591 if (primcount == 0) 1592 return; 1593 1594 vbo_bind_arrays(ctx); 1595 1596 vbo->draw_indirect_prims(ctx, mode, ctx->DrawIndirectBuffer, offset, 1597 primcount, stride, NULL, 0, NULL); 1598 1599 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) 1600 _mesa_flush(ctx); 1601 } 1602 1603 1604 static void 1605 vbo_validated_drawelementsindirect(struct gl_context *ctx, 1606 GLenum mode, GLenum type, 1607 const GLvoid *indirect) 1608 { 1609 struct vbo_context *vbo = vbo_context(ctx); 1610 struct _mesa_index_buffer ib; 1611 1612 vbo_bind_arrays(ctx); 1613 1614 ib.count = 0; /* unknown */ 1615 ib.index_size = vbo_sizeof_ib_type(type); 1616 ib.obj = ctx->Array.VAO->IndexBufferObj; 1617 ib.ptr = NULL; 1618 1619 vbo->draw_indirect_prims(ctx, mode, 1620 ctx->DrawIndirectBuffer, (GLsizeiptr) indirect, 1621 1 /* draw_count */ , 20 /* stride */ , 1622 NULL, 0, &ib); 1623 1624 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) 1625 _mesa_flush(ctx); 1626 } 1627 1628 1629 static void 1630 vbo_validated_multidrawelementsindirect(struct gl_context *ctx, 1631 GLenum mode, GLenum type, 1632 const GLvoid *indirect, 1633 GLsizei primcount, GLsizei stride) 1634 { 1635 struct vbo_context *vbo = vbo_context(ctx); 1636 struct _mesa_index_buffer ib; 1637 GLsizeiptr offset = (GLsizeiptr) indirect; 1638 1639 if (primcount == 0) 1640 return; 1641 1642 vbo_bind_arrays(ctx); 1643 1644 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */ 1645 1646 ib.count = 0; /* unknown */ 1647 ib.index_size = vbo_sizeof_ib_type(type); 1648 ib.obj = ctx->Array.VAO->IndexBufferObj; 1649 ib.ptr = NULL; 1650 1651 vbo->draw_indirect_prims(ctx, mode, 1652 ctx->DrawIndirectBuffer, offset, 1653 primcount, stride, NULL, 0, &ib); 1654 1655 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) 1656 _mesa_flush(ctx); 1657 } 1658 1659 1660 /** 1661 * Like [Multi]DrawArrays/Elements, but they take most arguments from 1662 * a buffer object. 1663 */ 1664 static void GLAPIENTRY 1665 vbo_exec_DrawArraysIndirect(GLenum mode, const GLvoid *indirect) 1666 { 1667 GET_CURRENT_CONTEXT(ctx); 1668 1669 if (MESA_VERBOSE & VERBOSE_DRAW) 1670 _mesa_debug(ctx, "glDrawArraysIndirect(%s, %p)\n", 1671 _mesa_enum_to_string(mode), indirect); 1672 1673 if (_mesa_is_no_error_enabled(ctx)) { 1674 FLUSH_CURRENT(ctx, 0); 1675 1676 if (ctx->NewState) 1677 _mesa_update_state(ctx); 1678 } else { 1679 if (!_mesa_validate_DrawArraysIndirect(ctx, mode, indirect)) 1680 return; 1681 } 1682 1683 if (skip_validated_draw(ctx)) 1684 return; 1685 1686 vbo_validated_drawarraysindirect(ctx, mode, indirect); 1687 } 1688 1689 1690 static void GLAPIENTRY 1691 vbo_exec_DrawElementsIndirect(GLenum mode, GLenum type, const GLvoid *indirect) 1692 { 1693 GET_CURRENT_CONTEXT(ctx); 1694 1695 if (MESA_VERBOSE & VERBOSE_DRAW) 1696 _mesa_debug(ctx, "glDrawElementsIndirect(%s, %s, %p)\n", 1697 _mesa_enum_to_string(mode), 1698 _mesa_enum_to_string(type), indirect); 1699 1700 if (_mesa_is_no_error_enabled(ctx)) { 1701 FLUSH_CURRENT(ctx, 0); 1702 1703 if (ctx->NewState) 1704 _mesa_update_state(ctx); 1705 } else { 1706 if (!_mesa_validate_DrawElementsIndirect(ctx, mode, type, indirect)) 1707 return; 1708 } 1709 1710 if (skip_validated_draw(ctx)) 1711 return; 1712 1713 vbo_validated_drawelementsindirect(ctx, mode, type, indirect); 1714 } 1715 1716 1717 static void GLAPIENTRY 1718 vbo_exec_MultiDrawArraysIndirect(GLenum mode, const GLvoid *indirect, 1719 GLsizei primcount, GLsizei stride) 1720 { 1721 GET_CURRENT_CONTEXT(ctx); 1722 1723 if (MESA_VERBOSE & VERBOSE_DRAW) 1724 _mesa_debug(ctx, "glMultiDrawArraysIndirect(%s, %p, %i, %i)\n", 1725 _mesa_enum_to_string(mode), indirect, primcount, stride); 1726 1727 /* If <stride> is zero, the array elements are treated as tightly packed. */ 1728 if (stride == 0) 1729 stride = 4 * sizeof(GLuint); /* sizeof(DrawArraysIndirectCommand) */ 1730 1731 if (_mesa_is_no_error_enabled(ctx)) { 1732 FLUSH_CURRENT(ctx, 0); 1733 1734 if (ctx->NewState) 1735 _mesa_update_state(ctx); 1736 } else { 1737 if (!_mesa_validate_MultiDrawArraysIndirect(ctx, mode, indirect, 1738 primcount, stride)) 1739 return; 1740 } 1741 1742 if (skip_validated_draw(ctx)) 1743 return; 1744 1745 vbo_validated_multidrawarraysindirect(ctx, mode, indirect, 1746 primcount, stride); 1747 } 1748 1749 1750 static void GLAPIENTRY 1751 vbo_exec_MultiDrawElementsIndirect(GLenum mode, GLenum type, 1752 const GLvoid *indirect, 1753 GLsizei primcount, GLsizei stride) 1754 { 1755 GET_CURRENT_CONTEXT(ctx); 1756 1757 if (MESA_VERBOSE & VERBOSE_DRAW) 1758 _mesa_debug(ctx, "glMultiDrawElementsIndirect(%s, %s, %p, %i, %i)\n", 1759 _mesa_enum_to_string(mode), 1760 _mesa_enum_to_string(type), indirect, primcount, stride); 1761 1762 /* If <stride> is zero, the array elements are treated as tightly packed. */ 1763 if (stride == 0) 1764 stride = 5 * sizeof(GLuint); /* sizeof(DrawElementsIndirectCommand) */ 1765 1766 if (_mesa_is_no_error_enabled(ctx)) { 1767 FLUSH_CURRENT(ctx, 0); 1768 1769 if (ctx->NewState) 1770 _mesa_update_state(ctx); 1771 } else { 1772 if (!_mesa_validate_MultiDrawElementsIndirect(ctx, mode, type, indirect, 1773 primcount, stride)) 1774 return; 1775 } 1776 1777 if (skip_validated_draw(ctx)) 1778 return; 1779 1780 vbo_validated_multidrawelementsindirect(ctx, mode, type, indirect, 1781 primcount, stride); 1782 } 1783 1784 1785 static void 1786 vbo_validated_multidrawarraysindirectcount(struct gl_context *ctx, 1787 GLenum mode, 1788 GLintptr indirect, 1789 GLintptr drawcount, 1790 GLsizei maxdrawcount, 1791 GLsizei stride) 1792 { 1793 struct vbo_context *vbo = vbo_context(ctx); 1794 GLsizeiptr offset = indirect; 1795 1796 if (maxdrawcount == 0) 1797 return; 1798 1799 vbo_bind_arrays(ctx); 1800 1801 vbo->draw_indirect_prims(ctx, mode, 1802 ctx->DrawIndirectBuffer, offset, 1803 maxdrawcount, stride, 1804 ctx->ParameterBuffer, drawcount, NULL); 1805 1806 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) 1807 _mesa_flush(ctx); 1808 } 1809 1810 1811 static void 1812 vbo_validated_multidrawelementsindirectcount(struct gl_context *ctx, 1813 GLenum mode, GLenum type, 1814 GLintptr indirect, 1815 GLintptr drawcount, 1816 GLsizei maxdrawcount, 1817 GLsizei stride) 1818 { 1819 struct vbo_context *vbo = vbo_context(ctx); 1820 struct _mesa_index_buffer ib; 1821 GLsizeiptr offset = (GLsizeiptr) indirect; 1822 1823 if (maxdrawcount == 0) 1824 return; 1825 1826 vbo_bind_arrays(ctx); 1827 1828 /* NOTE: IndexBufferObj is guaranteed to be a VBO. */ 1829 1830 ib.count = 0; /* unknown */ 1831 ib.index_size = vbo_sizeof_ib_type(type); 1832 ib.obj = ctx->Array.VAO->IndexBufferObj; 1833 ib.ptr = NULL; 1834 1835 vbo->draw_indirect_prims(ctx, mode, 1836 ctx->DrawIndirectBuffer, offset, 1837 maxdrawcount, stride, 1838 ctx->ParameterBuffer, drawcount, &ib); 1839 1840 if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH) 1841 _mesa_flush(ctx); 1842 } 1843 1844 1845 static void GLAPIENTRY 1846 vbo_exec_MultiDrawArraysIndirectCount(GLenum mode, GLintptr indirect, 1847 GLintptr drawcount, 1848 GLsizei maxdrawcount, GLsizei stride) 1849 { 1850 GET_CURRENT_CONTEXT(ctx); 1851 1852 if (MESA_VERBOSE & VERBOSE_DRAW) 1853 _mesa_debug(ctx, "glMultiDrawArraysIndirectCountARB" 1854 "(%s, %lx, %lx, %i, %i)\n", 1855 _mesa_enum_to_string(mode), 1856 (unsigned long) indirect, (unsigned long) drawcount, 1857 maxdrawcount, stride); 1858 1859 /* If <stride> is zero, the array elements are treated as tightly packed. */ 1860 if (stride == 0) 1861 stride = 4 * sizeof(GLuint); /* sizeof(DrawArraysIndirectCommand) */ 1862 1863 if (_mesa_is_no_error_enabled(ctx)) { 1864 FLUSH_CURRENT(ctx, 0); 1865 1866 if (ctx->NewState) 1867 _mesa_update_state(ctx); 1868 } else { 1869 if (!_mesa_validate_MultiDrawArraysIndirectCount(ctx, mode, 1870 indirect, drawcount, 1871 maxdrawcount, stride)) 1872 return; 1873 } 1874 1875 if (skip_validated_draw(ctx)) 1876 return; 1877 1878 vbo_validated_multidrawarraysindirectcount(ctx, mode, indirect, drawcount, 1879 maxdrawcount, stride); 1880 } 1881 1882 1883 static void GLAPIENTRY 1884 vbo_exec_MultiDrawElementsIndirectCount(GLenum mode, GLenum type, 1885 GLintptr indirect, GLintptr drawcount, 1886 GLsizei maxdrawcount, GLsizei stride) 1887 { 1888 GET_CURRENT_CONTEXT(ctx); 1889 1890 if (MESA_VERBOSE & VERBOSE_DRAW) 1891 _mesa_debug(ctx, "glMultiDrawElementsIndirectCountARB" 1892 "(%s, %s, %lx, %lx, %i, %i)\n", 1893 _mesa_enum_to_string(mode), _mesa_enum_to_string(type), 1894 (unsigned long) indirect, (unsigned long) drawcount, 1895 maxdrawcount, stride); 1896 1897 /* If <stride> is zero, the array elements are treated as tightly packed. */ 1898 if (stride == 0) 1899 stride = 5 * sizeof(GLuint); /* sizeof(DrawElementsIndirectCommand) */ 1900 1901 if (_mesa_is_no_error_enabled(ctx)) { 1902 FLUSH_CURRENT(ctx, 0); 1903 1904 if (ctx->NewState) 1905 _mesa_update_state(ctx); 1906 } else { 1907 if (!_mesa_validate_MultiDrawElementsIndirectCount(ctx, mode, type, 1908 indirect, drawcount, 1909 maxdrawcount, stride)) 1910 return; 1911 } 1912 1913 if (skip_validated_draw(ctx)) 1914 return; 1915 1916 vbo_validated_multidrawelementsindirectcount(ctx, mode, type, indirect, 1917 drawcount, maxdrawcount, 1918 stride); 1919 } 1920 1921 1922 /** 1923 * Initialize the dispatch table with the VBO functions for drawing. 1924 */ 1925 void 1926 vbo_initialize_exec_dispatch(const struct gl_context *ctx, 1927 struct _glapi_table *exec) 1928 { 1929 SET_DrawArrays(exec, vbo_exec_DrawArrays); 1930 SET_DrawElements(exec, vbo_exec_DrawElements); 1931 1932 if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) { 1933 SET_DrawRangeElements(exec, vbo_exec_DrawRangeElements); 1934 } 1935 1936 SET_MultiDrawArrays(exec, vbo_exec_MultiDrawArrays); 1937 SET_MultiDrawElementsEXT(exec, vbo_exec_MultiDrawElements); 1938 1939 if (ctx->API == API_OPENGL_COMPAT) { 1940 SET_Rectf(exec, vbo_exec_Rectf); 1941 SET_EvalMesh1(exec, vbo_exec_EvalMesh1); 1942 SET_EvalMesh2(exec, vbo_exec_EvalMesh2); 1943 } 1944 1945 if (ctx->API != API_OPENGLES && 1946 ctx->Extensions.ARB_draw_elements_base_vertex) { 1947 SET_DrawElementsBaseVertex(exec, vbo_exec_DrawElementsBaseVertex); 1948 SET_MultiDrawElementsBaseVertex(exec, 1949 vbo_exec_MultiDrawElementsBaseVertex); 1950 1951 if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) { 1952 SET_DrawRangeElementsBaseVertex(exec, 1953 vbo_exec_DrawRangeElementsBaseVertex); 1954 SET_DrawElementsInstancedBaseVertex(exec, 1955 vbo_exec_DrawElementsInstancedBaseVertex); 1956 } 1957 } 1958 1959 if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) { 1960 SET_DrawArraysInstancedBaseInstance(exec, 1961 vbo_exec_DrawArraysInstancedBaseInstance); 1962 SET_DrawElementsInstancedBaseInstance(exec, 1963 vbo_exec_DrawElementsInstancedBaseInstance); 1964 SET_DrawElementsInstancedBaseVertexBaseInstance(exec, 1965 vbo_exec_DrawElementsInstancedBaseVertexBaseInstance); 1966 } 1967 1968 if (ctx->API == API_OPENGL_CORE || _mesa_is_gles31(ctx)) { 1969 SET_DrawArraysIndirect(exec, vbo_exec_DrawArraysIndirect); 1970 SET_DrawElementsIndirect(exec, vbo_exec_DrawElementsIndirect); 1971 } 1972 1973 if (ctx->API == API_OPENGL_CORE) { 1974 SET_MultiDrawArraysIndirect(exec, vbo_exec_MultiDrawArraysIndirect); 1975 SET_MultiDrawElementsIndirect(exec, vbo_exec_MultiDrawElementsIndirect); 1976 SET_MultiDrawArraysIndirectCountARB(exec, 1977 vbo_exec_MultiDrawArraysIndirectCount); 1978 SET_MultiDrawElementsIndirectCountARB(exec, 1979 vbo_exec_MultiDrawElementsIndirectCount); 1980 } 1981 1982 if (_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) { 1983 SET_DrawArraysInstancedARB(exec, vbo_exec_DrawArraysInstanced); 1984 SET_DrawElementsInstancedARB(exec, vbo_exec_DrawElementsInstanced); 1985 } 1986 1987 if (_mesa_is_desktop_gl(ctx)) { 1988 SET_DrawTransformFeedback(exec, vbo_exec_DrawTransformFeedback); 1989 SET_DrawTransformFeedbackStream(exec, 1990 vbo_exec_DrawTransformFeedbackStream); 1991 SET_DrawTransformFeedbackInstanced(exec, 1992 vbo_exec_DrawTransformFeedbackInstanced); 1993 SET_DrawTransformFeedbackStreamInstanced(exec, 1994 vbo_exec_DrawTransformFeedbackStreamInstanced); 1995 } 1996 } 1997 1998 1999 2000 /** 2001 * The following functions are only used for OpenGL ES 1/2 support. 2002 * And some aren't even supported (yet) in ES 1/2. 2003 */ 2004 2005 2006 void GLAPIENTRY 2007 _mesa_DrawArrays(GLenum mode, GLint first, GLsizei count) 2008 { 2009 vbo_exec_DrawArrays(mode, first, count); 2010 } 2011 2012 2013 void GLAPIENTRY 2014 _mesa_DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, 2015 GLsizei primcount) 2016 { 2017 vbo_exec_DrawArraysInstanced(mode, first, count, primcount); 2018 } 2019 2020 2021 void GLAPIENTRY 2022 _mesa_DrawElements(GLenum mode, GLsizei count, GLenum type, 2023 const GLvoid *indices) 2024 { 2025 vbo_exec_DrawElements(mode, count, type, indices); 2026 } 2027 2028 2029 void GLAPIENTRY 2030 _mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type, 2031 const GLvoid *indices, GLint basevertex) 2032 { 2033 vbo_exec_DrawElementsBaseVertex(mode, count, type, indices, basevertex); 2034 } 2035 2036 2037 void GLAPIENTRY 2038 _mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count, 2039 GLenum type, const GLvoid * indices) 2040 { 2041 vbo_exec_DrawRangeElements(mode, start, end, count, type, indices); 2042 } 2043 2044 2045 void GLAPIENTRY 2046 _mesa_DrawRangeElementsBaseVertex(GLenum mode, GLuint start, GLuint end, 2047 GLsizei count, GLenum type, 2048 const GLvoid *indices, GLint basevertex) 2049 { 2050 vbo_exec_DrawRangeElementsBaseVertex(mode, start, end, count, type, 2051 indices, basevertex); 2052 } 2053 2054 2055 void GLAPIENTRY 2056 _mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type, 2057 const GLvoid ** indices, GLsizei primcount) 2058 { 2059 vbo_exec_MultiDrawElements(mode, count, type, indices, primcount); 2060 } 2061 2062 2063 void GLAPIENTRY 2064 _mesa_MultiDrawElementsBaseVertex(GLenum mode, 2065 const GLsizei *count, GLenum type, 2066 const GLvoid **indices, GLsizei primcount, 2067 const GLint *basevertex) 2068 { 2069 vbo_exec_MultiDrawElementsBaseVertex(mode, count, type, indices, 2070 primcount, basevertex); 2071 } 2072 2073 2074 void GLAPIENTRY 2075 _mesa_DrawTransformFeedback(GLenum mode, GLuint name) 2076 { 2077 vbo_exec_DrawTransformFeedback(mode, name); 2078 } 2079
