1 /************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 /* 28 * Authors: 29 * Keith Whitwell <keith (at) tungstengraphics.com> 30 * Brian Paul 31 */ 32 33 34 #include "main/imports.h" 35 #include "main/hash.h" 36 #include "main/mfeatures.h" 37 #include "main/mtypes.h" 38 #include "program/prog_parameter.h" 39 #include "program/prog_print.h" 40 #include "program/programopt.h" 41 42 #include "pipe/p_context.h" 43 #include "pipe/p_defines.h" 44 #include "pipe/p_shader_tokens.h" 45 #include "draw/draw_context.h" 46 #include "tgsi/tgsi_dump.h" 47 #include "tgsi/tgsi_ureg.h" 48 49 #include "st_debug.h" 50 #include "st_cb_bitmap.h" 51 #include "st_cb_drawpixels.h" 52 #include "st_context.h" 53 #include "st_program.h" 54 #include "st_mesa_to_tgsi.h" 55 #include "cso_cache/cso_context.h" 56 57 58 59 /** 60 * Delete a vertex program variant. Note the caller must unlink 61 * the variant from the linked list. 62 */ 63 static void 64 delete_vp_variant(struct st_context *st, struct st_vp_variant *vpv) 65 { 66 if (vpv->driver_shader) 67 cso_delete_vertex_shader(st->cso_context, vpv->driver_shader); 68 69 #if FEATURE_feedback || FEATURE_rastpos 70 if (vpv->draw_shader) 71 draw_delete_vertex_shader( st->draw, vpv->draw_shader ); 72 #endif 73 74 if (vpv->tgsi.tokens) 75 st_free_tokens(vpv->tgsi.tokens); 76 77 FREE( vpv ); 78 } 79 80 81 82 /** 83 * Clean out any old compilations: 84 */ 85 void 86 st_release_vp_variants( struct st_context *st, 87 struct st_vertex_program *stvp ) 88 { 89 struct st_vp_variant *vpv; 90 91 for (vpv = stvp->variants; vpv; ) { 92 struct st_vp_variant *next = vpv->next; 93 delete_vp_variant(st, vpv); 94 vpv = next; 95 } 96 97 stvp->variants = NULL; 98 } 99 100 101 102 /** 103 * Delete a fragment program variant. Note the caller must unlink 104 * the variant from the linked list. 105 */ 106 static void 107 delete_fp_variant(struct st_context *st, struct st_fp_variant *fpv) 108 { 109 if (fpv->driver_shader) 110 cso_delete_fragment_shader(st->cso_context, fpv->driver_shader); 111 if (fpv->parameters) 112 _mesa_free_parameter_list(fpv->parameters); 113 if (fpv->tgsi.tokens) 114 st_free_tokens(fpv->tgsi.tokens); 115 FREE(fpv); 116 } 117 118 119 /** 120 * Free all variants of a fragment program. 121 */ 122 void 123 st_release_fp_variants(struct st_context *st, struct st_fragment_program *stfp) 124 { 125 struct st_fp_variant *fpv; 126 127 for (fpv = stfp->variants; fpv; ) { 128 struct st_fp_variant *next = fpv->next; 129 delete_fp_variant(st, fpv); 130 fpv = next; 131 } 132 133 stfp->variants = NULL; 134 } 135 136 137 /** 138 * Delete a geometry program variant. Note the caller must unlink 139 * the variant from the linked list. 140 */ 141 static void 142 delete_gp_variant(struct st_context *st, struct st_gp_variant *gpv) 143 { 144 if (gpv->driver_shader) 145 cso_delete_geometry_shader(st->cso_context, gpv->driver_shader); 146 147 FREE(gpv); 148 } 149 150 151 /** 152 * Free all variants of a geometry program. 153 */ 154 void 155 st_release_gp_variants(struct st_context *st, struct st_geometry_program *stgp) 156 { 157 struct st_gp_variant *gpv; 158 159 for (gpv = stgp->variants; gpv; ) { 160 struct st_gp_variant *next = gpv->next; 161 delete_gp_variant(st, gpv); 162 gpv = next; 163 } 164 165 stgp->variants = NULL; 166 } 167 168 169 170 171 /** 172 * Translate a Mesa vertex shader into a TGSI shader. 173 * \param outputMapping to map vertex program output registers (VERT_RESULT_x) 174 * to TGSI output slots 175 * \param tokensOut destination for TGSI tokens 176 * \return pointer to cached pipe_shader object. 177 */ 178 void 179 st_prepare_vertex_program(struct gl_context *ctx, 180 struct st_vertex_program *stvp) 181 { 182 GLuint attr; 183 184 stvp->num_inputs = 0; 185 stvp->num_outputs = 0; 186 187 if (stvp->Base.IsPositionInvariant) 188 _mesa_insert_mvp_code(ctx, &stvp->Base); 189 190 if (!stvp->glsl_to_tgsi) 191 assert(stvp->Base.Base.NumInstructions > 1); 192 193 /* 194 * Determine number of inputs, the mappings between VERT_ATTRIB_x 195 * and TGSI generic input indexes, plus input attrib semantic info. 196 */ 197 for (attr = 0; attr < VERT_ATTRIB_MAX; attr++) { 198 if ((stvp->Base.Base.InputsRead & BITFIELD64_BIT(attr)) != 0) { 199 stvp->input_to_index[attr] = stvp->num_inputs; 200 stvp->index_to_input[stvp->num_inputs] = attr; 201 stvp->num_inputs++; 202 } 203 } 204 /* bit of a hack, presetup potentially unused edgeflag input */ 205 stvp->input_to_index[VERT_ATTRIB_EDGEFLAG] = stvp->num_inputs; 206 stvp->index_to_input[stvp->num_inputs] = VERT_ATTRIB_EDGEFLAG; 207 208 /* Compute mapping of vertex program outputs to slots. 209 */ 210 for (attr = 0; attr < VERT_RESULT_MAX; attr++) { 211 if ((stvp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) == 0) { 212 stvp->result_to_output[attr] = ~0; 213 } 214 else { 215 unsigned slot = stvp->num_outputs++; 216 217 stvp->result_to_output[attr] = slot; 218 219 switch (attr) { 220 case VERT_RESULT_HPOS: 221 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_POSITION; 222 stvp->output_semantic_index[slot] = 0; 223 break; 224 case VERT_RESULT_COL0: 225 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 226 stvp->output_semantic_index[slot] = 0; 227 break; 228 case VERT_RESULT_COL1: 229 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 230 stvp->output_semantic_index[slot] = 1; 231 break; 232 case VERT_RESULT_BFC0: 233 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; 234 stvp->output_semantic_index[slot] = 0; 235 break; 236 case VERT_RESULT_BFC1: 237 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; 238 stvp->output_semantic_index[slot] = 1; 239 break; 240 case VERT_RESULT_FOGC: 241 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_FOG; 242 stvp->output_semantic_index[slot] = 0; 243 break; 244 case VERT_RESULT_PSIZ: 245 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; 246 stvp->output_semantic_index[slot] = 0; 247 break; 248 case VERT_RESULT_CLIP_DIST0: 249 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; 250 stvp->output_semantic_index[slot] = 0; 251 break; 252 case VERT_RESULT_CLIP_DIST1: 253 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; 254 stvp->output_semantic_index[slot] = 1; 255 break; 256 case VERT_RESULT_EDGE: 257 assert(0); 258 break; 259 case VERT_RESULT_CLIP_VERTEX: 260 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX; 261 stvp->output_semantic_index[slot] = 0; 262 break; 263 264 case VERT_RESULT_TEX0: 265 case VERT_RESULT_TEX1: 266 case VERT_RESULT_TEX2: 267 case VERT_RESULT_TEX3: 268 case VERT_RESULT_TEX4: 269 case VERT_RESULT_TEX5: 270 case VERT_RESULT_TEX6: 271 case VERT_RESULT_TEX7: 272 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; 273 stvp->output_semantic_index[slot] = attr - VERT_RESULT_TEX0; 274 break; 275 276 case VERT_RESULT_VAR0: 277 default: 278 assert(attr < VERT_RESULT_MAX); 279 stvp->output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; 280 stvp->output_semantic_index[slot] = (FRAG_ATTRIB_VAR0 - 281 FRAG_ATTRIB_TEX0 + 282 attr - 283 VERT_RESULT_VAR0); 284 break; 285 } 286 } 287 } 288 /* similar hack to above, presetup potentially unused edgeflag output */ 289 stvp->result_to_output[VERT_RESULT_EDGE] = stvp->num_outputs; 290 stvp->output_semantic_name[stvp->num_outputs] = TGSI_SEMANTIC_EDGEFLAG; 291 stvp->output_semantic_index[stvp->num_outputs] = 0; 292 } 293 294 295 /** 296 * Translate a vertex program to create a new variant. 297 */ 298 static struct st_vp_variant * 299 st_translate_vertex_program(struct st_context *st, 300 struct st_vertex_program *stvp, 301 const struct st_vp_variant_key *key) 302 { 303 struct st_vp_variant *vpv = CALLOC_STRUCT(st_vp_variant); 304 struct pipe_context *pipe = st->pipe; 305 struct ureg_program *ureg; 306 enum pipe_error error; 307 unsigned num_outputs; 308 309 st_prepare_vertex_program(st->ctx, stvp); 310 311 if (!stvp->glsl_to_tgsi) 312 { 313 _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_OUTPUT); 314 _mesa_remove_output_reads(&stvp->Base.Base, PROGRAM_VARYING); 315 } 316 317 ureg = ureg_create( TGSI_PROCESSOR_VERTEX ); 318 if (ureg == NULL) { 319 FREE(vpv); 320 return NULL; 321 } 322 323 vpv->key = *key; 324 325 vpv->num_inputs = stvp->num_inputs; 326 num_outputs = stvp->num_outputs; 327 if (key->passthrough_edgeflags) { 328 vpv->num_inputs++; 329 num_outputs++; 330 } 331 332 if (ST_DEBUG & DEBUG_MESA) { 333 _mesa_print_program(&stvp->Base.Base); 334 _mesa_print_program_parameters(st->ctx, &stvp->Base.Base); 335 debug_printf("\n"); 336 } 337 338 if (stvp->glsl_to_tgsi) 339 error = st_translate_program(st->ctx, 340 TGSI_PROCESSOR_VERTEX, 341 ureg, 342 stvp->glsl_to_tgsi, 343 &stvp->Base.Base, 344 /* inputs */ 345 stvp->num_inputs, 346 stvp->input_to_index, 347 NULL, /* input semantic name */ 348 NULL, /* input semantic index */ 349 NULL, /* interp mode */ 350 NULL, /* is centroid */ 351 /* outputs */ 352 stvp->num_outputs, 353 stvp->result_to_output, 354 stvp->output_semantic_name, 355 stvp->output_semantic_index, 356 key->passthrough_edgeflags, 357 key->clamp_color); 358 else 359 error = st_translate_mesa_program(st->ctx, 360 TGSI_PROCESSOR_VERTEX, 361 ureg, 362 &stvp->Base.Base, 363 /* inputs */ 364 vpv->num_inputs, 365 stvp->input_to_index, 366 NULL, /* input semantic name */ 367 NULL, /* input semantic index */ 368 NULL, 369 /* outputs */ 370 num_outputs, 371 stvp->result_to_output, 372 stvp->output_semantic_name, 373 stvp->output_semantic_index, 374 key->passthrough_edgeflags, 375 key->clamp_color); 376 377 if (error) 378 goto fail; 379 380 vpv->tgsi.tokens = ureg_get_tokens( ureg, NULL ); 381 if (!vpv->tgsi.tokens) 382 goto fail; 383 384 ureg_destroy( ureg ); 385 386 if (stvp->glsl_to_tgsi) { 387 st_translate_stream_output_info(stvp->glsl_to_tgsi, 388 stvp->result_to_output, 389 &vpv->tgsi.stream_output); 390 } 391 392 vpv->driver_shader = pipe->create_vs_state(pipe, &vpv->tgsi); 393 394 if (ST_DEBUG & DEBUG_TGSI) { 395 tgsi_dump( vpv->tgsi.tokens, 0 ); 396 debug_printf("\n"); 397 } 398 399 return vpv; 400 401 fail: 402 debug_printf("%s: failed to translate Mesa program:\n", __FUNCTION__); 403 _mesa_print_program(&stvp->Base.Base); 404 debug_assert(0); 405 406 ureg_destroy( ureg ); 407 return NULL; 408 } 409 410 411 /** 412 * Find/create a vertex program variant. 413 */ 414 struct st_vp_variant * 415 st_get_vp_variant(struct st_context *st, 416 struct st_vertex_program *stvp, 417 const struct st_vp_variant_key *key) 418 { 419 struct st_vp_variant *vpv; 420 421 /* Search for existing variant */ 422 for (vpv = stvp->variants; vpv; vpv = vpv->next) { 423 if (memcmp(&vpv->key, key, sizeof(*key)) == 0) { 424 break; 425 } 426 } 427 428 if (!vpv) { 429 /* create now */ 430 vpv = st_translate_vertex_program(st, stvp, key); 431 if (vpv) { 432 /* insert into list */ 433 vpv->next = stvp->variants; 434 stvp->variants = vpv; 435 } 436 } 437 438 return vpv; 439 } 440 441 442 static unsigned 443 st_translate_interp(enum glsl_interp_qualifier glsl_qual, bool is_color) 444 { 445 switch (glsl_qual) { 446 case INTERP_QUALIFIER_NONE: 447 if (is_color) 448 return TGSI_INTERPOLATE_COLOR; 449 return TGSI_INTERPOLATE_PERSPECTIVE; 450 case INTERP_QUALIFIER_SMOOTH: 451 return TGSI_INTERPOLATE_PERSPECTIVE; 452 case INTERP_QUALIFIER_FLAT: 453 return TGSI_INTERPOLATE_CONSTANT; 454 case INTERP_QUALIFIER_NOPERSPECTIVE: 455 return TGSI_INTERPOLATE_LINEAR; 456 default: 457 assert(0 && "unexpected interp mode in st_translate_interp()"); 458 return TGSI_INTERPOLATE_PERSPECTIVE; 459 } 460 } 461 462 463 /** 464 * Translate a Mesa fragment shader into a TGSI shader using extra info in 465 * the key. 466 * \return new fragment program variant 467 */ 468 static struct st_fp_variant * 469 st_translate_fragment_program(struct st_context *st, 470 struct st_fragment_program *stfp, 471 const struct st_fp_variant_key *key) 472 { 473 struct pipe_context *pipe = st->pipe; 474 struct st_fp_variant *variant = CALLOC_STRUCT(st_fp_variant); 475 GLboolean deleteFP = GL_FALSE; 476 477 GLuint outputMapping[FRAG_RESULT_MAX]; 478 GLuint inputMapping[FRAG_ATTRIB_MAX]; 479 GLuint interpMode[PIPE_MAX_SHADER_INPUTS]; /* XXX size? */ 480 GLuint attr; 481 GLbitfield64 inputsRead; 482 struct ureg_program *ureg; 483 484 GLboolean write_all = GL_FALSE; 485 486 ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS]; 487 ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS]; 488 GLboolean is_centroid[PIPE_MAX_SHADER_INPUTS]; 489 uint fs_num_inputs = 0; 490 491 ubyte fs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; 492 ubyte fs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS]; 493 uint fs_num_outputs = 0; 494 495 if (!variant) 496 return NULL; 497 498 assert(!(key->bitmap && key->drawpixels)); 499 500 #if FEATURE_drawpix 501 if (key->bitmap) { 502 /* glBitmap drawing */ 503 struct gl_fragment_program *fp; /* we free this temp program below */ 504 505 st_make_bitmap_fragment_program(st, &stfp->Base, 506 &fp, &variant->bitmap_sampler); 507 508 variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters); 509 stfp = st_fragment_program(fp); 510 deleteFP = GL_TRUE; 511 } 512 else if (key->drawpixels) { 513 /* glDrawPixels drawing */ 514 struct gl_fragment_program *fp; /* we free this temp program below */ 515 516 if (key->drawpixels_z || key->drawpixels_stencil) { 517 fp = st_make_drawpix_z_stencil_program(st, key->drawpixels_z, 518 key->drawpixels_stencil); 519 } 520 else { 521 /* RGBA */ 522 st_make_drawpix_fragment_program(st, &stfp->Base, &fp); 523 variant->parameters = _mesa_clone_parameter_list(fp->Base.Parameters); 524 deleteFP = GL_TRUE; 525 } 526 stfp = st_fragment_program(fp); 527 } 528 #endif 529 530 if (!stfp->glsl_to_tgsi) 531 _mesa_remove_output_reads(&stfp->Base.Base, PROGRAM_OUTPUT); 532 533 /* 534 * Convert Mesa program inputs to TGSI input register semantics. 535 */ 536 inputsRead = stfp->Base.Base.InputsRead; 537 for (attr = 0; attr < FRAG_ATTRIB_MAX; attr++) { 538 if ((inputsRead & BITFIELD64_BIT(attr)) != 0) { 539 const GLuint slot = fs_num_inputs++; 540 541 inputMapping[attr] = slot; 542 is_centroid[slot] = (stfp->Base.IsCentroid & BITFIELD64_BIT(attr)) != 0; 543 544 switch (attr) { 545 case FRAG_ATTRIB_WPOS: 546 input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; 547 input_semantic_index[slot] = 0; 548 interpMode[slot] = TGSI_INTERPOLATE_LINEAR; 549 break; 550 case FRAG_ATTRIB_COL0: 551 input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 552 input_semantic_index[slot] = 0; 553 interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr], 554 TRUE); 555 break; 556 case FRAG_ATTRIB_COL1: 557 input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 558 input_semantic_index[slot] = 1; 559 interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr], 560 TRUE); 561 break; 562 case FRAG_ATTRIB_FOGC: 563 input_semantic_name[slot] = TGSI_SEMANTIC_FOG; 564 input_semantic_index[slot] = 0; 565 interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; 566 break; 567 case FRAG_ATTRIB_FACE: 568 input_semantic_name[slot] = TGSI_SEMANTIC_FACE; 569 input_semantic_index[slot] = 0; 570 interpMode[slot] = TGSI_INTERPOLATE_CONSTANT; 571 break; 572 case FRAG_ATTRIB_CLIP_DIST0: 573 input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; 574 input_semantic_index[slot] = 0; 575 interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; 576 break; 577 case FRAG_ATTRIB_CLIP_DIST1: 578 input_semantic_name[slot] = TGSI_SEMANTIC_CLIPDIST; 579 input_semantic_index[slot] = 1; 580 interpMode[slot] = TGSI_INTERPOLATE_PERSPECTIVE; 581 break; 582 /* In most cases, there is nothing special about these 583 * inputs, so adopt a convention to use the generic 584 * semantic name and the mesa FRAG_ATTRIB_ number as the 585 * index. 586 * 587 * All that is required is that the vertex shader labels 588 * its own outputs similarly, and that the vertex shader 589 * generates at least every output required by the 590 * fragment shader plus fixed-function hardware (such as 591 * BFC). 592 * 593 * There is no requirement that semantic indexes start at 594 * zero or be restricted to a particular range -- nobody 595 * should be building tables based on semantic index. 596 */ 597 case FRAG_ATTRIB_PNTC: 598 case FRAG_ATTRIB_TEX0: 599 case FRAG_ATTRIB_TEX1: 600 case FRAG_ATTRIB_TEX2: 601 case FRAG_ATTRIB_TEX3: 602 case FRAG_ATTRIB_TEX4: 603 case FRAG_ATTRIB_TEX5: 604 case FRAG_ATTRIB_TEX6: 605 case FRAG_ATTRIB_TEX7: 606 case FRAG_ATTRIB_VAR0: 607 default: 608 /* Actually, let's try and zero-base this just for 609 * readability of the generated TGSI. 610 */ 611 assert(attr >= FRAG_ATTRIB_TEX0); 612 input_semantic_index[slot] = (attr - FRAG_ATTRIB_TEX0); 613 input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; 614 if (attr == FRAG_ATTRIB_PNTC) 615 interpMode[slot] = TGSI_INTERPOLATE_LINEAR; 616 else 617 interpMode[slot] = st_translate_interp(stfp->Base.InterpQualifier[attr], 618 FALSE); 619 break; 620 } 621 } 622 else { 623 inputMapping[attr] = -1; 624 } 625 } 626 627 /* 628 * Semantics and mapping for outputs 629 */ 630 { 631 uint numColors = 0; 632 GLbitfield64 outputsWritten = stfp->Base.Base.OutputsWritten; 633 634 /* if z is written, emit that first */ 635 if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) { 636 fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_POSITION; 637 fs_output_semantic_index[fs_num_outputs] = 0; 638 outputMapping[FRAG_RESULT_DEPTH] = fs_num_outputs; 639 fs_num_outputs++; 640 outputsWritten &= ~(1 << FRAG_RESULT_DEPTH); 641 } 642 643 if (outputsWritten & BITFIELD64_BIT(FRAG_RESULT_STENCIL)) { 644 fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_STENCIL; 645 fs_output_semantic_index[fs_num_outputs] = 0; 646 outputMapping[FRAG_RESULT_STENCIL] = fs_num_outputs; 647 fs_num_outputs++; 648 outputsWritten &= ~(1 << FRAG_RESULT_STENCIL); 649 } 650 651 /* handle remaining outputs (color) */ 652 for (attr = 0; attr < FRAG_RESULT_MAX; attr++) { 653 if (outputsWritten & BITFIELD64_BIT(attr)) { 654 switch (attr) { 655 case FRAG_RESULT_DEPTH: 656 case FRAG_RESULT_STENCIL: 657 /* handled above */ 658 assert(0); 659 break; 660 case FRAG_RESULT_COLOR: 661 write_all = GL_TRUE; /* fallthrough */ 662 default: 663 assert(attr == FRAG_RESULT_COLOR || 664 (FRAG_RESULT_DATA0 <= attr && attr < FRAG_RESULT_MAX)); 665 fs_output_semantic_name[fs_num_outputs] = TGSI_SEMANTIC_COLOR; 666 fs_output_semantic_index[fs_num_outputs] = numColors; 667 outputMapping[attr] = fs_num_outputs; 668 numColors++; 669 break; 670 } 671 672 fs_num_outputs++; 673 } 674 } 675 } 676 677 ureg = ureg_create( TGSI_PROCESSOR_FRAGMENT ); 678 if (ureg == NULL) { 679 FREE(variant); 680 return NULL; 681 } 682 683 if (ST_DEBUG & DEBUG_MESA) { 684 _mesa_print_program(&stfp->Base.Base); 685 _mesa_print_program_parameters(st->ctx, &stfp->Base.Base); 686 debug_printf("\n"); 687 } 688 if (write_all == GL_TRUE) 689 ureg_property_fs_color0_writes_all_cbufs(ureg, 1); 690 691 if (stfp->Base.FragDepthLayout != FRAG_DEPTH_LAYOUT_NONE) { 692 switch (stfp->Base.FragDepthLayout) { 693 case FRAG_DEPTH_LAYOUT_ANY: 694 ureg_property_fs_depth_layout(ureg, TGSI_FS_DEPTH_LAYOUT_ANY); 695 break; 696 case FRAG_DEPTH_LAYOUT_GREATER: 697 ureg_property_fs_depth_layout(ureg, TGSI_FS_DEPTH_LAYOUT_GREATER); 698 break; 699 case FRAG_DEPTH_LAYOUT_LESS: 700 ureg_property_fs_depth_layout(ureg, TGSI_FS_DEPTH_LAYOUT_LESS); 701 break; 702 case FRAG_DEPTH_LAYOUT_UNCHANGED: 703 ureg_property_fs_depth_layout(ureg, TGSI_FS_DEPTH_LAYOUT_UNCHANGED); 704 break; 705 default: 706 assert(0); 707 } 708 } 709 710 if (stfp->glsl_to_tgsi) 711 st_translate_program(st->ctx, 712 TGSI_PROCESSOR_FRAGMENT, 713 ureg, 714 stfp->glsl_to_tgsi, 715 &stfp->Base.Base, 716 /* inputs */ 717 fs_num_inputs, 718 inputMapping, 719 input_semantic_name, 720 input_semantic_index, 721 interpMode, 722 is_centroid, 723 /* outputs */ 724 fs_num_outputs, 725 outputMapping, 726 fs_output_semantic_name, 727 fs_output_semantic_index, FALSE, 728 key->clamp_color ); 729 else 730 st_translate_mesa_program(st->ctx, 731 TGSI_PROCESSOR_FRAGMENT, 732 ureg, 733 &stfp->Base.Base, 734 /* inputs */ 735 fs_num_inputs, 736 inputMapping, 737 input_semantic_name, 738 input_semantic_index, 739 interpMode, 740 /* outputs */ 741 fs_num_outputs, 742 outputMapping, 743 fs_output_semantic_name, 744 fs_output_semantic_index, FALSE, 745 key->clamp_color); 746 747 variant->tgsi.tokens = ureg_get_tokens( ureg, NULL ); 748 ureg_destroy( ureg ); 749 750 /* fill in variant */ 751 variant->driver_shader = pipe->create_fs_state(pipe, &variant->tgsi); 752 variant->key = *key; 753 754 if (ST_DEBUG & DEBUG_TGSI) { 755 tgsi_dump( variant->tgsi.tokens, 0/*TGSI_DUMP_VERBOSE*/ ); 756 debug_printf("\n"); 757 } 758 759 if (deleteFP) { 760 /* Free the temporary program made above */ 761 struct gl_fragment_program *fp = &stfp->Base; 762 _mesa_reference_fragprog(st->ctx, &fp, NULL); 763 } 764 765 return variant; 766 } 767 768 769 /** 770 * Translate fragment program if needed. 771 */ 772 struct st_fp_variant * 773 st_get_fp_variant(struct st_context *st, 774 struct st_fragment_program *stfp, 775 const struct st_fp_variant_key *key) 776 { 777 struct st_fp_variant *fpv; 778 779 /* Search for existing variant */ 780 for (fpv = stfp->variants; fpv; fpv = fpv->next) { 781 if (memcmp(&fpv->key, key, sizeof(*key)) == 0) { 782 break; 783 } 784 } 785 786 if (!fpv) { 787 /* create new */ 788 fpv = st_translate_fragment_program(st, stfp, key); 789 if (fpv) { 790 /* insert into list */ 791 fpv->next = stfp->variants; 792 stfp->variants = fpv; 793 } 794 } 795 796 return fpv; 797 } 798 799 800 /** 801 * Translate a geometry program to create a new variant. 802 */ 803 static struct st_gp_variant * 804 st_translate_geometry_program(struct st_context *st, 805 struct st_geometry_program *stgp, 806 const struct st_gp_variant_key *key) 807 { 808 GLuint inputMapping[GEOM_ATTRIB_MAX]; 809 GLuint outputMapping[GEOM_RESULT_MAX]; 810 struct pipe_context *pipe = st->pipe; 811 GLuint attr; 812 GLbitfield64 inputsRead; 813 GLuint vslot = 0; 814 GLuint num_generic = 0; 815 816 uint gs_num_inputs = 0; 817 uint gs_builtin_inputs = 0; 818 uint gs_array_offset = 0; 819 820 ubyte gs_output_semantic_name[PIPE_MAX_SHADER_OUTPUTS]; 821 ubyte gs_output_semantic_index[PIPE_MAX_SHADER_OUTPUTS]; 822 uint gs_num_outputs = 0; 823 824 GLint i; 825 GLuint maxSlot = 0; 826 struct ureg_program *ureg; 827 828 struct st_gp_variant *gpv; 829 830 gpv = CALLOC_STRUCT(st_gp_variant); 831 if (!gpv) 832 return NULL; 833 834 _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_OUTPUT); 835 _mesa_remove_output_reads(&stgp->Base.Base, PROGRAM_VARYING); 836 837 ureg = ureg_create( TGSI_PROCESSOR_GEOMETRY ); 838 if (ureg == NULL) { 839 FREE(gpv); 840 return NULL; 841 } 842 843 /* which vertex output goes to the first geometry input */ 844 vslot = 0; 845 846 memset(inputMapping, 0, sizeof(inputMapping)); 847 memset(outputMapping, 0, sizeof(outputMapping)); 848 849 /* 850 * Convert Mesa program inputs to TGSI input register semantics. 851 */ 852 inputsRead = stgp->Base.Base.InputsRead; 853 for (attr = 0; attr < GEOM_ATTRIB_MAX; attr++) { 854 if ((inputsRead & BITFIELD64_BIT(attr)) != 0) { 855 const GLuint slot = gs_num_inputs; 856 857 gs_num_inputs++; 858 859 inputMapping[attr] = slot; 860 861 stgp->input_map[slot + gs_array_offset] = vslot - gs_builtin_inputs; 862 stgp->input_to_index[attr] = vslot; 863 stgp->index_to_input[vslot] = attr; 864 ++vslot; 865 866 if (attr != GEOM_ATTRIB_PRIMITIVE_ID) { 867 gs_array_offset += 2; 868 } else 869 ++gs_builtin_inputs; 870 871 #if 0 872 debug_printf("input map at %d = %d\n", 873 slot + gs_array_offset, stgp->input_map[slot + gs_array_offset]); 874 #endif 875 876 switch (attr) { 877 case GEOM_ATTRIB_PRIMITIVE_ID: 878 stgp->input_semantic_name[slot] = TGSI_SEMANTIC_PRIMID; 879 stgp->input_semantic_index[slot] = 0; 880 break; 881 case GEOM_ATTRIB_POSITION: 882 stgp->input_semantic_name[slot] = TGSI_SEMANTIC_POSITION; 883 stgp->input_semantic_index[slot] = 0; 884 break; 885 case GEOM_ATTRIB_COLOR0: 886 stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 887 stgp->input_semantic_index[slot] = 0; 888 break; 889 case GEOM_ATTRIB_COLOR1: 890 stgp->input_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 891 stgp->input_semantic_index[slot] = 1; 892 break; 893 case GEOM_ATTRIB_FOG_FRAG_COORD: 894 stgp->input_semantic_name[slot] = TGSI_SEMANTIC_FOG; 895 stgp->input_semantic_index[slot] = 0; 896 break; 897 case GEOM_ATTRIB_TEX_COORD: 898 stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; 899 stgp->input_semantic_index[slot] = num_generic++; 900 break; 901 case GEOM_ATTRIB_VAR0: 902 /* fall-through */ 903 default: 904 stgp->input_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; 905 stgp->input_semantic_index[slot] = num_generic++; 906 } 907 } 908 } 909 910 /* initialize output semantics to defaults */ 911 for (i = 0; i < PIPE_MAX_SHADER_OUTPUTS; i++) { 912 gs_output_semantic_name[i] = TGSI_SEMANTIC_GENERIC; 913 gs_output_semantic_index[i] = 0; 914 } 915 916 num_generic = 0; 917 /* 918 * Determine number of outputs, the (default) output register 919 * mapping and the semantic information for each output. 920 */ 921 for (attr = 0; attr < GEOM_RESULT_MAX; attr++) { 922 if (stgp->Base.Base.OutputsWritten & BITFIELD64_BIT(attr)) { 923 GLuint slot; 924 925 slot = gs_num_outputs; 926 gs_num_outputs++; 927 outputMapping[attr] = slot; 928 929 switch (attr) { 930 case GEOM_RESULT_POS: 931 assert(slot == 0); 932 gs_output_semantic_name[slot] = TGSI_SEMANTIC_POSITION; 933 gs_output_semantic_index[slot] = 0; 934 break; 935 case GEOM_RESULT_COL0: 936 gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 937 gs_output_semantic_index[slot] = 0; 938 break; 939 case GEOM_RESULT_COL1: 940 gs_output_semantic_name[slot] = TGSI_SEMANTIC_COLOR; 941 gs_output_semantic_index[slot] = 1; 942 break; 943 case GEOM_RESULT_SCOL0: 944 gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; 945 gs_output_semantic_index[slot] = 0; 946 break; 947 case GEOM_RESULT_SCOL1: 948 gs_output_semantic_name[slot] = TGSI_SEMANTIC_BCOLOR; 949 gs_output_semantic_index[slot] = 1; 950 break; 951 case GEOM_RESULT_FOGC: 952 gs_output_semantic_name[slot] = TGSI_SEMANTIC_FOG; 953 gs_output_semantic_index[slot] = 0; 954 break; 955 case GEOM_RESULT_PSIZ: 956 gs_output_semantic_name[slot] = TGSI_SEMANTIC_PSIZE; 957 gs_output_semantic_index[slot] = 0; 958 break; 959 case GEOM_RESULT_TEX0: 960 case GEOM_RESULT_TEX1: 961 case GEOM_RESULT_TEX2: 962 case GEOM_RESULT_TEX3: 963 case GEOM_RESULT_TEX4: 964 case GEOM_RESULT_TEX5: 965 case GEOM_RESULT_TEX6: 966 case GEOM_RESULT_TEX7: 967 /* fall-through */ 968 case GEOM_RESULT_VAR0: 969 /* fall-through */ 970 default: 971 assert(slot < Elements(gs_output_semantic_name)); 972 /* use default semantic info */ 973 gs_output_semantic_name[slot] = TGSI_SEMANTIC_GENERIC; 974 gs_output_semantic_index[slot] = num_generic++; 975 } 976 } 977 } 978 979 assert(gs_output_semantic_name[0] == TGSI_SEMANTIC_POSITION); 980 981 /* find max output slot referenced to compute gs_num_outputs */ 982 for (attr = 0; attr < GEOM_RESULT_MAX; attr++) { 983 if (outputMapping[attr] != ~0 && outputMapping[attr] > maxSlot) 984 maxSlot = outputMapping[attr]; 985 } 986 gs_num_outputs = maxSlot + 1; 987 988 #if 0 /* debug */ 989 { 990 GLuint i; 991 printf("outputMapping? %d\n", outputMapping ? 1 : 0); 992 if (outputMapping) { 993 printf("attr -> slot\n"); 994 for (i = 0; i < 16; i++) { 995 printf(" %2d %3d\n", i, outputMapping[i]); 996 } 997 } 998 printf("slot sem_name sem_index\n"); 999 for (i = 0; i < gs_num_outputs; i++) { 1000 printf(" %2d %d %d\n", 1001 i, 1002 gs_output_semantic_name[i], 1003 gs_output_semantic_index[i]); 1004 } 1005 } 1006 #endif 1007 1008 /* free old shader state, if any */ 1009 if (stgp->tgsi.tokens) { 1010 st_free_tokens(stgp->tgsi.tokens); 1011 stgp->tgsi.tokens = NULL; 1012 } 1013 1014 ureg_property_gs_input_prim(ureg, stgp->Base.InputType); 1015 ureg_property_gs_output_prim(ureg, stgp->Base.OutputType); 1016 ureg_property_gs_max_vertices(ureg, stgp->Base.VerticesOut); 1017 1018 st_translate_mesa_program(st->ctx, 1019 TGSI_PROCESSOR_GEOMETRY, 1020 ureg, 1021 &stgp->Base.Base, 1022 /* inputs */ 1023 gs_num_inputs, 1024 inputMapping, 1025 stgp->input_semantic_name, 1026 stgp->input_semantic_index, 1027 NULL, 1028 /* outputs */ 1029 gs_num_outputs, 1030 outputMapping, 1031 gs_output_semantic_name, 1032 gs_output_semantic_index, 1033 FALSE, 1034 FALSE); 1035 1036 stgp->num_inputs = gs_num_inputs; 1037 stgp->tgsi.tokens = ureg_get_tokens( ureg, NULL ); 1038 ureg_destroy( ureg ); 1039 1040 if (stgp->glsl_to_tgsi) { 1041 st_translate_stream_output_info(stgp->glsl_to_tgsi, 1042 outputMapping, 1043 &stgp->tgsi.stream_output); 1044 } 1045 1046 /* fill in new variant */ 1047 gpv->driver_shader = pipe->create_gs_state(pipe, &stgp->tgsi); 1048 gpv->key = *key; 1049 1050 if ((ST_DEBUG & DEBUG_TGSI) && (ST_DEBUG & DEBUG_MESA)) { 1051 _mesa_print_program(&stgp->Base.Base); 1052 debug_printf("\n"); 1053 } 1054 1055 if (ST_DEBUG & DEBUG_TGSI) { 1056 tgsi_dump(stgp->tgsi.tokens, 0); 1057 debug_printf("\n"); 1058 } 1059 1060 return gpv; 1061 } 1062 1063 1064 /** 1065 * Get/create geometry program variant. 1066 */ 1067 struct st_gp_variant * 1068 st_get_gp_variant(struct st_context *st, 1069 struct st_geometry_program *stgp, 1070 const struct st_gp_variant_key *key) 1071 { 1072 struct st_gp_variant *gpv; 1073 1074 /* Search for existing variant */ 1075 for (gpv = stgp->variants; gpv; gpv = gpv->next) { 1076 if (memcmp(&gpv->key, key, sizeof(*key)) == 0) { 1077 break; 1078 } 1079 } 1080 1081 if (!gpv) { 1082 /* create new */ 1083 gpv = st_translate_geometry_program(st, stgp, key); 1084 if (gpv) { 1085 /* insert into list */ 1086 gpv->next = stgp->variants; 1087 stgp->variants = gpv; 1088 } 1089 } 1090 1091 return gpv; 1092 } 1093 1094 1095 1096 1097 /** 1098 * Debug- print current shader text 1099 */ 1100 void 1101 st_print_shaders(struct gl_context *ctx) 1102 { 1103 struct gl_shader_program *shProg[3] = { 1104 ctx->Shader.CurrentVertexProgram, 1105 ctx->Shader.CurrentGeometryProgram, 1106 ctx->Shader.CurrentFragmentProgram, 1107 }; 1108 unsigned j; 1109 1110 for (j = 0; j < 3; j++) { 1111 unsigned i; 1112 1113 if (shProg[j] == NULL) 1114 continue; 1115 1116 for (i = 0; i < shProg[j]->NumShaders; i++) { 1117 struct gl_shader *sh; 1118 1119 switch (shProg[j]->Shaders[i]->Type) { 1120 case GL_VERTEX_SHADER: 1121 sh = (i != 0) ? NULL : shProg[j]->Shaders[i]; 1122 break; 1123 case GL_GEOMETRY_SHADER_ARB: 1124 sh = (i != 1) ? NULL : shProg[j]->Shaders[i]; 1125 break; 1126 case GL_FRAGMENT_SHADER: 1127 sh = (i != 2) ? NULL : shProg[j]->Shaders[i]; 1128 break; 1129 default: 1130 assert(0); 1131 sh = NULL; 1132 break; 1133 } 1134 1135 if (sh != NULL) { 1136 printf("GLSL shader %u of %u:\n", i, shProg[j]->NumShaders); 1137 printf("%s\n", sh->Source); 1138 } 1139 } 1140 } 1141 } 1142 1143 1144 /** 1145 * Vert/Geom/Frag programs have per-context variants. Free all the 1146 * variants attached to the given program which match the given context. 1147 */ 1148 static void 1149 destroy_program_variants(struct st_context *st, struct gl_program *program) 1150 { 1151 if (!program) 1152 return; 1153 1154 switch (program->Target) { 1155 case GL_VERTEX_PROGRAM_ARB: 1156 { 1157 struct st_vertex_program *stvp = (struct st_vertex_program *) program; 1158 struct st_vp_variant *vpv, **prevPtr = &stvp->variants; 1159 1160 for (vpv = stvp->variants; vpv; ) { 1161 struct st_vp_variant *next = vpv->next; 1162 if (vpv->key.st == st) { 1163 /* unlink from list */ 1164 *prevPtr = next; 1165 /* destroy this variant */ 1166 delete_vp_variant(st, vpv); 1167 } 1168 else { 1169 prevPtr = &vpv->next; 1170 } 1171 vpv = next; 1172 } 1173 } 1174 break; 1175 case GL_FRAGMENT_PROGRAM_ARB: 1176 { 1177 struct st_fragment_program *stfp = 1178 (struct st_fragment_program *) program; 1179 struct st_fp_variant *fpv, **prevPtr = &stfp->variants; 1180 1181 for (fpv = stfp->variants; fpv; ) { 1182 struct st_fp_variant *next = fpv->next; 1183 if (fpv->key.st == st) { 1184 /* unlink from list */ 1185 *prevPtr = next; 1186 /* destroy this variant */ 1187 delete_fp_variant(st, fpv); 1188 } 1189 else { 1190 prevPtr = &fpv->next; 1191 } 1192 fpv = next; 1193 } 1194 } 1195 break; 1196 case MESA_GEOMETRY_PROGRAM: 1197 { 1198 struct st_geometry_program *stgp = 1199 (struct st_geometry_program *) program; 1200 struct st_gp_variant *gpv, **prevPtr = &stgp->variants; 1201 1202 for (gpv = stgp->variants; gpv; ) { 1203 struct st_gp_variant *next = gpv->next; 1204 if (gpv->key.st == st) { 1205 /* unlink from list */ 1206 *prevPtr = next; 1207 /* destroy this variant */ 1208 delete_gp_variant(st, gpv); 1209 } 1210 else { 1211 prevPtr = &gpv->next; 1212 } 1213 gpv = next; 1214 } 1215 } 1216 break; 1217 default: 1218 _mesa_problem(NULL, "Unexpected program target 0x%x in " 1219 "destroy_program_variants_cb()", program->Target); 1220 } 1221 } 1222 1223 1224 /** 1225 * Callback for _mesa_HashWalk. Free all the shader's program variants 1226 * which match the given context. 1227 */ 1228 static void 1229 destroy_shader_program_variants_cb(GLuint key, void *data, void *userData) 1230 { 1231 struct st_context *st = (struct st_context *) userData; 1232 struct gl_shader *shader = (struct gl_shader *) data; 1233 1234 switch (shader->Type) { 1235 case GL_SHADER_PROGRAM_MESA: 1236 { 1237 struct gl_shader_program *shProg = (struct gl_shader_program *) data; 1238 GLuint i; 1239 1240 for (i = 0; i < shProg->NumShaders; i++) { 1241 destroy_program_variants(st, shProg->Shaders[i]->Program); 1242 } 1243 1244 for (i = 0; i < Elements(shProg->_LinkedShaders); i++) { 1245 if (shProg->_LinkedShaders[i]) 1246 destroy_program_variants(st, shProg->_LinkedShaders[i]->Program); 1247 } 1248 } 1249 break; 1250 case GL_VERTEX_SHADER: 1251 case GL_FRAGMENT_SHADER: 1252 case GL_GEOMETRY_SHADER: 1253 { 1254 destroy_program_variants(st, shader->Program); 1255 } 1256 break; 1257 default: 1258 assert(0); 1259 } 1260 } 1261 1262 1263 /** 1264 * Callback for _mesa_HashWalk. Free all the program variants which match 1265 * the given context. 1266 */ 1267 static void 1268 destroy_program_variants_cb(GLuint key, void *data, void *userData) 1269 { 1270 struct st_context *st = (struct st_context *) userData; 1271 struct gl_program *program = (struct gl_program *) data; 1272 destroy_program_variants(st, program); 1273 } 1274 1275 1276 /** 1277 * Walk over all shaders and programs to delete any variants which 1278 * belong to the given context. 1279 * This is called during context tear-down. 1280 */ 1281 void 1282 st_destroy_program_variants(struct st_context *st) 1283 { 1284 /* ARB vert/frag program */ 1285 _mesa_HashWalk(st->ctx->Shared->Programs, 1286 destroy_program_variants_cb, st); 1287 1288 /* GLSL vert/frag/geom shaders */ 1289 _mesa_HashWalk(st->ctx->Shared->ShaderObjects, 1290 destroy_shader_program_variants_cb, st); 1291 } 1292 1293 1294 /** 1295 * For debugging, print/dump the current vertex program. 1296 */ 1297 void 1298 st_print_current_vertex_program(void) 1299 { 1300 GET_CURRENT_CONTEXT(ctx); 1301 1302 if (ctx->VertexProgram._Current) { 1303 struct st_vertex_program *stvp = 1304 (struct st_vertex_program *) ctx->VertexProgram._Current; 1305 struct st_vp_variant *stv; 1306 1307 debug_printf("Vertex program %u\n", stvp->Base.Base.Id); 1308 1309 for (stv = stvp->variants; stv; stv = stv->next) { 1310 debug_printf("variant %p\n", stv); 1311 tgsi_dump(stv->tgsi.tokens, 0); 1312 } 1313 } 1314 } 1315
