src/gallium/auxiliary/tgsi/tgsi_ureg.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009-2010 VMware, Inc.
   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 VMWARE, INC 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
  29 #include "pipe/p_screen.h"
  30 #include "pipe/p_context.h"
  31 #include "pipe/p_state.h"
  32 #include "tgsi/tgsi_ureg.h"
  33 #include "tgsi/tgsi_build.h"
  34 #include "tgsi/tgsi_info.h"
  35 #include "tgsi/tgsi_dump.h"
  36 #include "tgsi/tgsi_sanity.h"
  37 #include "util/u_debug.h"
  38 #include "util/u_inlines.h"
  39 #include "util/u_memory.h"
  40 #include "util/u_math.h"
  41 #include "util/u_bitmask.h"
  42
  43 union tgsi_any_token {
  44    struct tgsi_header header;
  45    struct tgsi_processor processor;
  46    struct tgsi_token token;
  47    struct tgsi_property prop;
  48    struct tgsi_property_data prop_data;
  49    struct tgsi_declaration decl;
  50    struct tgsi_declaration_range decl_range;
  51    struct tgsi_declaration_dimension decl_dim;
  52    struct tgsi_declaration_interp decl_interp;
  53    struct tgsi_declaration_image decl_image;
  54    struct tgsi_declaration_semantic decl_semantic;
  55    struct tgsi_declaration_sampler_view decl_sampler_view;
  56    struct tgsi_declaration_array array;
  57    struct tgsi_immediate imm;
  58    union  tgsi_immediate_data imm_data;
  59    struct tgsi_instruction insn;
  60    struct tgsi_instruction_label insn_label;
  61    struct tgsi_instruction_texture insn_texture;
  62    struct tgsi_instruction_memory insn_memory;
  63    struct tgsi_texture_offset insn_texture_offset;
  64    struct tgsi_src_register src;
  65    struct tgsi_ind_register ind;
  66    struct tgsi_dimension dim;
  67    struct tgsi_dst_register dst;
  68    unsigned value;
  69 };
  70
  71
  72 struct ureg_tokens {
  73    union tgsi_any_token *tokens;
  74    unsigned size;
  75    unsigned order;
  76    unsigned count;
  77 };
  78
  79 #define UREG_MAX_INPUT (4 * PIPE_MAX_SHADER_INPUTS)
  80 #define UREG_MAX_SYSTEM_VALUE PIPE_MAX_ATTRIBS
  81 #define UREG_MAX_OUTPUT (4 * PIPE_MAX_SHADER_OUTPUTS)
  82 #define UREG_MAX_CONSTANT_RANGE 32
  83 #define UREG_MAX_IMMEDIATE 4096
  84 #define UREG_MAX_ADDR 3
  85 #define UREG_MAX_ARRAY_TEMPS 256
  86
  87 struct const_decl {
  88    struct {
  89       unsigned first;
  90       unsigned last;
  91    } constant_range[UREG_MAX_CONSTANT_RANGE];
  92    unsigned nr_constant_ranges;
  93 };
  94
  95 #define DOMAIN_DECL 0
  96 #define DOMAIN_INSN 1
  97
  98 struct ureg_program
  99 {
 100    unsigned processor;
 101    bool supports_any_inout_decl_range;
 102    int next_shader_processor;
 103
 104    struct {
 105       unsigned semantic_name;
 106       unsigned semantic_index;
 107       unsigned interp;
 108       unsigned char cylindrical_wrap;
 109       unsigned char usage_mask;
 110       unsigned interp_location;
 111       unsigned first;
 112       unsigned last;
 113       unsigned array_id;
 114    } input[UREG_MAX_INPUT];
 115    unsigned nr_inputs, nr_input_regs;
 116
 117    unsigned vs_inputs[PIPE_MAX_ATTRIBS/32];
 118
 119    struct {
 120       unsigned semantic_name;
 121       unsigned semantic_index;
 122    } system_value[UREG_MAX_SYSTEM_VALUE];
 123    unsigned nr_system_values;
 124
 125    struct {
 126       unsigned semantic_name;
 127       unsigned semantic_index;
 128       unsigned streams;
 129       unsigned usage_mask; /* = TGSI_WRITEMASK_* */
 130       unsigned first;
 131       unsigned last;
 132       unsigned array_id;
 133    } output[UREG_MAX_OUTPUT];
 134    unsigned nr_outputs, nr_output_regs;
 135
 136    struct {
 137       union {
 138          float f[4];
 139          unsigned u[4];
 140          int i[4];
 141       } value;
 142       unsigned nr;
 143       unsigned type;
 144    } immediate[UREG_MAX_IMMEDIATE];
 145    unsigned nr_immediates;
 146
 147    struct ureg_src sampler[PIPE_MAX_SAMPLERS];
 148    unsigned nr_samplers;
 149
 150    struct {
 151       unsigned index;
 152       unsigned target;
 153       unsigned return_type_x;
 154       unsigned return_type_y;
 155       unsigned return_type_z;
 156       unsigned return_type_w;
 157    } sampler_view[PIPE_MAX_SHADER_SAMPLER_VIEWS];
 158    unsigned nr_sampler_views;
 159
 160    struct {
 161       unsigned index;
 162       unsigned target;
 163       unsigned format;
 164       boolean wr;
 165       boolean raw;
 166    } image[PIPE_MAX_SHADER_IMAGES];
 167    unsigned nr_images;
 168
 169    struct {
 170       unsigned index;
 171       bool atomic;
 172    } buffer[PIPE_MAX_SHADER_BUFFERS];
 173    unsigned nr_buffers;
 174
 175    struct util_bitmask *free_temps;
 176    struct util_bitmask *local_temps;
 177    struct util_bitmask *decl_temps;
 178    unsigned nr_temps;
 179
 180    unsigned array_temps[UREG_MAX_ARRAY_TEMPS];
 181    unsigned nr_array_temps;
 182
 183    struct const_decl const_decls;
 184    struct const_decl const_decls2D[PIPE_MAX_CONSTANT_BUFFERS];
 185
 186    unsigned properties[TGSI_PROPERTY_COUNT];
 187
 188    unsigned nr_addrs;
 189    unsigned nr_instructions;
 190
 191    struct ureg_tokens domain[2];
 192
 193    bool use_memory[TGSI_MEMORY_TYPE_COUNT];
 194 };
 195
 196 static union tgsi_any_token error_tokens[32];
 197
 198 static void tokens_error( struct ureg_tokens *tokens )
 199 {
 200    if (tokens->tokens && tokens->tokens != error_tokens)
 201       FREE(tokens->tokens);
 202
 203    tokens->tokens = error_tokens;
 204    tokens->size = ARRAY_SIZE(error_tokens);
 205    tokens->count = 0;
 206 }
 207
 208
 209 static void tokens_expand( struct ureg_tokens *tokens,
 210                            unsigned count )
 211 {
 212    unsigned old_size = tokens->size * sizeof(unsigned);
 213
 214    if (tokens->tokens == error_tokens) {
 215       return;
 216    }
 217
 218    while (tokens->count + count > tokens->size) {
 219       tokens->size = (1 << ++tokens->order);
 220    }
 221
 222    tokens->tokens = REALLOC(tokens->tokens,
 223                             old_size,
 224                             tokens->size * sizeof(unsigned));
 225    if (tokens->tokens == NULL) {
 226       tokens_error(tokens);
 227    }
 228 }
 229
 230 static void set_bad( struct ureg_program *ureg )
 231 {
 232    tokens_error(&ureg->domain[0]);
 233 }
 234
 235
 236
 237 static union tgsi_any_token *get_tokens( struct ureg_program *ureg,
 238                                          unsigned domain,
 239                                          unsigned count )
 240 {
 241    struct ureg_tokens *tokens = &ureg->domain[domain];
 242    union tgsi_any_token *result;
 243
 244    if (tokens->count + count > tokens->size)
 245       tokens_expand(tokens, count);
 246
 247    result = &tokens->tokens[tokens->count];
 248    tokens->count += count;
 249    return result;
 250 }
 251
 252
 253 static union tgsi_any_token *retrieve_token( struct ureg_program *ureg,
 254                                             unsigned domain,
 255                                             unsigned nr )
 256 {
 257    if (ureg->domain[domain].tokens == error_tokens)
 258       return &error_tokens[0];
 259
 260    return &ureg->domain[domain].tokens[nr];
 261 }
 262
 263
 264 void
 265 ureg_property(struct ureg_program *ureg, unsigned name, unsigned value)
 266 {
 267    assert(name < ARRAY_SIZE(ureg->properties));
 268    ureg->properties[name] = value;
 269 }
 270
 271 struct ureg_src
 272 ureg_DECL_fs_input_cyl_centroid_layout(struct ureg_program *ureg,
 273                        unsigned semantic_name,
 274                        unsigned semantic_index,
 275                        unsigned interp_mode,
 276                        unsigned cylindrical_wrap,
 277                        unsigned interp_location,
 278                        unsigned index,
 279                        unsigned usage_mask,
 280                        unsigned array_id,
 281                        unsigned array_size)
 282 {
 283    unsigned i;
 284
 285    assert(usage_mask != 0);
 286    assert(usage_mask <= TGSI_WRITEMASK_XYZW);
 287
 288    for (i = 0; i < ureg->nr_inputs; i++) {
 289       if (ureg->input[i].semantic_name == semantic_name &&
 290           ureg->input[i].semantic_index == semantic_index) {
 291          assert(ureg->input[i].interp == interp_mode);
 292          assert(ureg->input[i].cylindrical_wrap == cylindrical_wrap);
 293          assert(ureg->input[i].interp_location == interp_location);
 294          if (ureg->input[i].array_id == array_id) {
 295             ureg->input[i].usage_mask |= usage_mask;
 296             goto out;
 297          }
 298          assert((ureg->input[i].usage_mask & usage_mask) == 0);
 299       }
 300    }
 301
 302    if (ureg->nr_inputs < UREG_MAX_INPUT) {
 303       assert(array_size >= 1);
 304       ureg->input[i].semantic_name = semantic_name;
 305       ureg->input[i].semantic_index = semantic_index;
 306       ureg->input[i].interp = interp_mode;
 307       ureg->input[i].cylindrical_wrap = cylindrical_wrap;
 308       ureg->input[i].interp_location = interp_location;
 309       ureg->input[i].first = index;
 310       ureg->input[i].last = index + array_size - 1;
 311       ureg->input[i].array_id = array_id;
 312       ureg->input[i].usage_mask = usage_mask;
 313       ureg->nr_input_regs = MAX2(ureg->nr_input_regs, index + array_size);
 314       ureg->nr_inputs++;
 315    } else {
 316       set_bad(ureg);
 317    }
 318
 319 out:
 320    return ureg_src_array_register(TGSI_FILE_INPUT, ureg->input[i].first,
 321                                   array_id);
 322 }
 323
 324 struct ureg_src
 325 ureg_DECL_fs_input_cyl_centroid(struct ureg_program *ureg,
 326                        unsigned semantic_name,
 327                        unsigned semantic_index,
 328                        unsigned interp_mode,
 329                        unsigned cylindrical_wrap,
 330                        unsigned interp_location,
 331                        unsigned array_id,
 332                        unsigned array_size)
 333 {
 334    return ureg_DECL_fs_input_cyl_centroid_layout(ureg,
 335          semantic_name, semantic_index, interp_mode, cylindrical_wrap, interp_location,
 336          ureg->nr_input_regs, TGSI_WRITEMASK_XYZW, array_id, array_size);
 337 }
 338
 339
 340 struct ureg_src
 341 ureg_DECL_vs_input( struct ureg_program *ureg,
 342                     unsigned index )
 343 {
 344    assert(ureg->processor == PIPE_SHADER_VERTEX);
 345    assert(index / 32 < ARRAY_SIZE(ureg->vs_inputs));
 346
 347    ureg->vs_inputs[index/32] |= 1 << (index % 32);
 348    return ureg_src_register( TGSI_FILE_INPUT, index );
 349 }
 350
 351
 352 struct ureg_src
 353 ureg_DECL_input_layout(struct ureg_program *ureg,
 354                 unsigned semantic_name,
 355                 unsigned semantic_index,
 356                 unsigned index,
 357                 unsigned usage_mask,
 358                 unsigned array_id,
 359                 unsigned array_size)
 360 {
 361    return ureg_DECL_fs_input_cyl_centroid_layout(ureg,
 362                semantic_name, semantic_index, 0, 0, 0,
 363                index, usage_mask, array_id, array_size);
 364 }
 365
 366
 367 struct ureg_src
 368 ureg_DECL_input(struct ureg_program *ureg,
 369                 unsigned semantic_name,
 370                 unsigned semantic_index,
 371                 unsigned array_id,
 372                 unsigned array_size)
 373 {
 374    return ureg_DECL_fs_input_cyl_centroid(ureg, semantic_name, semantic_index,
 375                                           0, 0, 0, array_id, array_size);
 376 }
 377
 378
 379 struct ureg_src
 380 ureg_DECL_system_value(struct ureg_program *ureg,
 381                        unsigned semantic_name,
 382                        unsigned semantic_index)
 383 {
 384    unsigned i;
 385
 386    for (i = 0; i < ureg->nr_system_values; i++) {
 387       if (ureg->system_value[i].semantic_name == semantic_name &&
 388           ureg->system_value[i].semantic_index == semantic_index) {
 389          goto out;
 390       }
 391    }
 392
 393    if (ureg->nr_system_values < UREG_MAX_SYSTEM_VALUE) {
 394       ureg->system_value[ureg->nr_system_values].semantic_name = semantic_name;
 395       ureg->system_value[ureg->nr_system_values].semantic_index = semantic_index;
 396       i = ureg->nr_system_values;
 397       ureg->nr_system_values++;
 398    } else {
 399       set_bad(ureg);
 400    }
 401
 402 out:
 403    return ureg_src_register(TGSI_FILE_SYSTEM_VALUE, i);
 404 }
 405
 406
 407 struct ureg_dst
 408 ureg_DECL_output_layout(struct ureg_program *ureg,
 409                         unsigned semantic_name,
 410                         unsigned semantic_index,
 411                         unsigned streams,
 412                         unsigned index,
 413                         unsigned usage_mask,
 414                         unsigned array_id,
 415                         unsigned array_size)
 416 {
 417    unsigned i;
 418
 419    assert(usage_mask != 0);
 420    assert(!(streams & 0x03) || (usage_mask & 1));
 421    assert(!(streams & 0x0c) || (usage_mask & 2));
 422    assert(!(streams & 0x30) || (usage_mask & 4));
 423    assert(!(streams & 0xc0) || (usage_mask & 8));
 424
 425    for (i = 0; i < ureg->nr_outputs; i++) {
 426       if (ureg->output[i].semantic_name == semantic_name &&
 427           ureg->output[i].semantic_index == semantic_index) {
 428          if (ureg->output[i].array_id == array_id) {
 429             ureg->output[i].usage_mask |= usage_mask;
 430             goto out;
 431          }
 432          assert((ureg->output[i].usage_mask & usage_mask) == 0);
 433       }
 434    }
 435
 436    if (ureg->nr_outputs < UREG_MAX_OUTPUT) {
 437       ureg->output[i].semantic_name = semantic_name;
 438       ureg->output[i].semantic_index = semantic_index;
 439       ureg->output[i].usage_mask = usage_mask;
 440       ureg->output[i].first = index;
 441       ureg->output[i].last = index + array_size - 1;
 442       ureg->output[i].array_id = array_id;
 443       ureg->nr_output_regs = MAX2(ureg->nr_output_regs, index + array_size);
 444       ureg->nr_outputs++;
 445    }
 446    else {
 447       set_bad( ureg );
 448       i = 0;
 449    }
 450
 451 out:
 452    ureg->output[i].streams |= streams;
 453
 454    return ureg_dst_array_register(TGSI_FILE_OUTPUT, ureg->output[i].first,
 455                                   array_id);
 456 }
 457
 458
 459 struct ureg_dst
 460 ureg_DECL_output_masked(struct ureg_program *ureg,
 461                         unsigned name,
 462                         unsigned index,
 463                         unsigned usage_mask,
 464                         unsigned array_id,
 465                         unsigned array_size)
 466 {
 467    return ureg_DECL_output_layout(ureg, name, index, 0,
 468                                   ureg->nr_output_regs, usage_mask, array_id, array_size);
 469 }
 470
 471
 472 struct ureg_dst
 473 ureg_DECL_output(struct ureg_program *ureg,
 474                  unsigned name,
 475                  unsigned index)
 476 {
 477    return ureg_DECL_output_masked(ureg, name, index, TGSI_WRITEMASK_XYZW,
 478                                   0, 1);
 479 }
 480
 481 struct ureg_dst
 482 ureg_DECL_output_array(struct ureg_program *ureg,
 483                        unsigned semantic_name,
 484                        unsigned semantic_index,
 485                        unsigned array_id,
 486                        unsigned array_size)
 487 {
 488    return ureg_DECL_output_masked(ureg, semantic_name, semantic_index,
 489                                   TGSI_WRITEMASK_XYZW,
 490                                   array_id, array_size);
 491 }
 492
 493
 494 /* Returns a new constant register.  Keep track of which have been
 495  * referred to so that we can emit decls later.
 496  *
 497  * Constant operands declared with this function must be addressed
 498  * with a two-dimensional index.
 499  *
 500  * There is nothing in this code to bind this constant to any tracked
 501  * value or manage any constant_buffer contents -- that's the
 502  * resposibility of the calling code.
 503  */
 504 void
 505 ureg_DECL_constant2D(struct ureg_program *ureg,
 506                      unsigned first,
 507                      unsigned last,
 508                      unsigned index2D)
 509 {
 510    struct const_decl *decl = &ureg->const_decls2D[index2D];
 511
 512    assert(index2D < PIPE_MAX_CONSTANT_BUFFERS);
 513
 514    if (decl->nr_constant_ranges < UREG_MAX_CONSTANT_RANGE) {
 515       uint i = decl->nr_constant_ranges++;
 516
 517       decl->constant_range[i].first = first;
 518       decl->constant_range[i].last = last;
 519    }
 520 }
 521
 522
 523 /* A one-dimensional, deprecated version of ureg_DECL_constant2D().
 524  *
 525  * Constant operands declared with this function must be addressed
 526  * with a one-dimensional index.
 527  */
 528 struct ureg_src
 529 ureg_DECL_constant(struct ureg_program *ureg,
 530                    unsigned index)
 531 {
 532    struct const_decl *decl = &ureg->const_decls;
 533    unsigned minconst = index, maxconst = index;
 534    unsigned i;
 535
 536    /* Inside existing range?
 537     */
 538    for (i = 0; i < decl->nr_constant_ranges; i++) {
 539       if (decl->constant_range[i].first <= index &&
 540           decl->constant_range[i].last >= index) {
 541          goto out;
 542       }
 543    }
 544
 545    /* Extend existing range?
 546     */
 547    for (i = 0; i < decl->nr_constant_ranges; i++) {
 548       if (decl->constant_range[i].last == index - 1) {
 549          decl->constant_range[i].last = index;
 550          goto out;
 551       }
 552
 553       if (decl->constant_range[i].first == index + 1) {
 554          decl->constant_range[i].first = index;
 555          goto out;
 556       }
 557
 558       minconst = MIN2(minconst, decl->constant_range[i].first);
 559       maxconst = MAX2(maxconst, decl->constant_range[i].last);
 560    }
 561
 562    /* Create new range?
 563     */
 564    if (decl->nr_constant_ranges < UREG_MAX_CONSTANT_RANGE) {
 565       i = decl->nr_constant_ranges++;
 566       decl->constant_range[i].first = index;
 567       decl->constant_range[i].last = index;
 568       goto out;
 569    }
 570
 571    /* Collapse all ranges down to one:
 572     */
 573    i = 0;
 574    decl->constant_range[0].first = minconst;
 575    decl->constant_range[0].last = maxconst;
 576    decl->nr_constant_ranges = 1;
 577
 578 out:
 579    assert(i < decl->nr_constant_ranges);
 580    assert(decl->constant_range[i].first <= index);
 581    assert(decl->constant_range[i].last >= index);
 582    return ureg_src_register(TGSI_FILE_CONSTANT, index);
 583 }
 584
 585 static struct ureg_dst alloc_temporary( struct ureg_program *ureg,
 586                                         boolean local )
 587 {
 588    unsigned i;
 589
 590    /* Look for a released temporary.
 591     */
 592    for (i = util_bitmask_get_first_index(ureg->free_temps);
 593         i != UTIL_BITMASK_INVALID_INDEX;
 594         i = util_bitmask_get_next_index(ureg->free_temps, i + 1)) {
 595       if (util_bitmask_get(ureg->local_temps, i) == local)
 596          break;
 597    }
 598
 599    /* Or allocate a new one.
 600     */
 601    if (i == UTIL_BITMASK_INVALID_INDEX) {
 602       i = ureg->nr_temps++;
 603
 604       if (local)
 605          util_bitmask_set(ureg->local_temps, i);
 606
 607       /* Start a new declaration when the local flag changes */
 608       if (!i || util_bitmask_get(ureg->local_temps, i - 1) != local)
 609          util_bitmask_set(ureg->decl_temps, i);
 610    }
 611
 612    util_bitmask_clear(ureg->free_temps, i);
 613
 614    return ureg_dst_register( TGSI_FILE_TEMPORARY, i );
 615 }
 616
 617 struct ureg_dst ureg_DECL_temporary( struct ureg_program *ureg )
 618 {
 619    return alloc_temporary(ureg, FALSE);
 620 }
 621
 622 struct ureg_dst ureg_DECL_local_temporary( struct ureg_program *ureg )
 623 {
 624    return alloc_temporary(ureg, TRUE);
 625 }
 626
 627 struct ureg_dst ureg_DECL_array_temporary( struct ureg_program *ureg,
 628                                            unsigned size,
 629                                            boolean local )
 630 {
 631    unsigned i = ureg->nr_temps;
 632    struct ureg_dst dst = ureg_dst_register( TGSI_FILE_TEMPORARY, i );
 633
 634    if (local)
 635       util_bitmask_set(ureg->local_temps, i);
 636
 637    /* Always start a new declaration at the start */
 638    util_bitmask_set(ureg->decl_temps, i);
 639
 640    ureg->nr_temps += size;
 641
 642    /* and also at the end of the array */
 643    util_bitmask_set(ureg->decl_temps, ureg->nr_temps);
 644
 645    if (ureg->nr_array_temps < UREG_MAX_ARRAY_TEMPS) {
 646       ureg->array_temps[ureg->nr_array_temps++] = i;
 647       dst.ArrayID = ureg->nr_array_temps;
 648    }
 649
 650    return dst;
 651 }
 652
 653 void ureg_release_temporary( struct ureg_program *ureg,
 654                              struct ureg_dst tmp )
 655 {
 656    if(tmp.File == TGSI_FILE_TEMPORARY)
 657       util_bitmask_set(ureg->free_temps, tmp.Index);
 658 }
 659
 660
 661 /* Allocate a new address register.
 662  */
 663 struct ureg_dst ureg_DECL_address( struct ureg_program *ureg )
 664 {
 665    if (ureg->nr_addrs < UREG_MAX_ADDR)
 666       return ureg_dst_register( TGSI_FILE_ADDRESS, ureg->nr_addrs++ );
 667
 668    assert( 0 );
 669    return ureg_dst_register( TGSI_FILE_ADDRESS, 0 );
 670 }
 671
 672 /* Allocate a new sampler.
 673  */
 674 struct ureg_src ureg_DECL_sampler( struct ureg_program *ureg,
 675                                    unsigned nr )
 676 {
 677    unsigned i;
 678
 679    for (i = 0; i < ureg->nr_samplers; i++)
 680       if (ureg->sampler[i].Index == nr)
 681          return ureg->sampler[i];
 682
 683    if (i < PIPE_MAX_SAMPLERS) {
 684       ureg->sampler[i] = ureg_src_register( TGSI_FILE_SAMPLER, nr );
 685       ureg->nr_samplers++;
 686       return ureg->sampler[i];
 687    }
 688
 689    assert( 0 );
 690    return ureg->sampler[0];
 691 }
 692
 693 /*
 694  * Allocate a new shader sampler view.
 695  */
 696 struct ureg_src
 697 ureg_DECL_sampler_view(struct ureg_program *ureg,
 698                        unsigned index,
 699                        unsigned target,
 700                        unsigned return_type_x,
 701                        unsigned return_type_y,
 702                        unsigned return_type_z,
 703                        unsigned return_type_w)
 704 {
 705    struct ureg_src reg = ureg_src_register(TGSI_FILE_SAMPLER_VIEW, index);
 706    uint i;
 707
 708    for (i = 0; i < ureg->nr_sampler_views; i++) {
 709       if (ureg->sampler_view[i].index == index) {
 710          return reg;
 711       }
 712    }
 713
 714    if (i < PIPE_MAX_SHADER_SAMPLER_VIEWS) {
 715       ureg->sampler_view[i].index = index;
 716       ureg->sampler_view[i].target = target;
 717       ureg->sampler_view[i].return_type_x = return_type_x;
 718       ureg->sampler_view[i].return_type_y = return_type_y;
 719       ureg->sampler_view[i].return_type_z = return_type_z;
 720       ureg->sampler_view[i].return_type_w = return_type_w;
 721       ureg->nr_sampler_views++;
 722       return reg;
 723    }
 724
 725    assert(0);
 726    return reg;
 727 }
 728
 729 /* Allocate a new image.
 730  */
 731 struct ureg_src
 732 ureg_DECL_image(struct ureg_program *ureg,
 733                 unsigned index,
 734                 unsigned target,
 735                 unsigned format,
 736                 boolean wr,
 737                 boolean raw)
 738 {
 739    struct ureg_src reg = ureg_src_register(TGSI_FILE_IMAGE, index);
 740    unsigned i;
 741
 742    for (i = 0; i < ureg->nr_images; i++)
 743       if (ureg->image[i].index == index)
 744          return reg;
 745
 746    if (i < PIPE_MAX_SHADER_IMAGES) {
 747       ureg->image[i].index = index;
 748       ureg->image[i].target = target;
 749       ureg->image[i].wr = wr;
 750       ureg->image[i].raw = raw;
 751       ureg->image[i].format = format;
 752       ureg->nr_images++;
 753       return reg;
 754    }
 755
 756    assert(0);
 757    return reg;
 758 }
 759
 760 /* Allocate a new buffer.
 761  */
 762 struct ureg_src ureg_DECL_buffer(struct ureg_program *ureg, unsigned nr,
 763                                  bool atomic)
 764 {
 765    struct ureg_src reg = ureg_src_register(TGSI_FILE_BUFFER, nr);
 766    unsigned i;
 767
 768    for (i = 0; i < ureg->nr_buffers; i++)
 769       if (ureg->buffer[i].index == nr)
 770          return reg;
 771
 772    if (i < PIPE_MAX_SHADER_BUFFERS) {
 773       ureg->buffer[i].index = nr;
 774       ureg->buffer[i].atomic = atomic;
 775       ureg->nr_buffers++;
 776       return reg;
 777    }
 778
 779    assert(0);
 780    return reg;
 781 }
 782
 783 /* Allocate a memory area.
 784  */
 785 struct ureg_src ureg_DECL_memory(struct ureg_program *ureg,
 786                                  unsigned memory_type)
 787 {
 788    struct ureg_src reg = ureg_src_register(TGSI_FILE_MEMORY, memory_type);
 789
 790    ureg->use_memory[memory_type] = true;
 791    return reg;
 792 }
 793
 794 static int
 795 match_or_expand_immediate64( const unsigned *v,
 796                              int type,
 797                              unsigned nr,
 798                              unsigned *v2,
 799                              unsigned *pnr2,
 800                              unsigned *swizzle )
 801 {
 802    unsigned nr2 = *pnr2;
 803    unsigned i, j;
 804    *swizzle = 0;
 805
 806    for (i = 0; i < nr; i += 2) {
 807       boolean found = FALSE;
 808
 809       for (j = 0; j < nr2 && !found; j += 2) {
 810          if (v[i] == v2[j] && v[i + 1] == v2[j + 1]) {
 811             *swizzle |= (j << (i * 2)) | ((j + 1) << ((i + 1) * 2));
 812             found = TRUE;
 813          }
 814       }
 815       if (!found) {
 816          if ((nr2) >= 4) {
 817             return FALSE;
 818          }
 819
 820          v2[nr2] = v[i];
 821          v2[nr2 + 1] = v[i + 1];
 822
 823          *swizzle |= (nr2 << (i * 2)) | ((nr2 + 1) << ((i + 1) * 2));
 824          nr2 += 2;
 825       }
 826    }
 827
 828    /* Actually expand immediate only when fully succeeded.
 829     */
 830    *pnr2 = nr2;
 831    return TRUE;
 832 }
 833
 834 static int
 835 match_or_expand_immediate( const unsigned *v,
 836                            int type,
 837                            unsigned nr,
 838                            unsigned *v2,
 839                            unsigned *pnr2,
 840                            unsigned *swizzle )
 841 {
 842    unsigned nr2 = *pnr2;
 843    unsigned i, j;
 844
 845    if (type == TGSI_IMM_FLOAT64 ||
 846        type == TGSI_IMM_UINT64 ||
 847        type == TGSI_IMM_INT64)
 848       return match_or_expand_immediate64(v, type, nr, v2, pnr2, swizzle);
 849
 850    *swizzle = 0;
 851
 852    for (i = 0; i < nr; i++) {
 853       boolean found = FALSE;
 854
 855       for (j = 0; j < nr2 && !found; j++) {
 856          if (v[i] == v2[j]) {
 857             *swizzle |= j << (i * 2);
 858             found = TRUE;
 859          }
 860       }
 861
 862       if (!found) {
 863          if (nr2 >= 4) {
 864             return FALSE;
 865          }
 866
 867          v2[nr2] = v[i];
 868          *swizzle |= nr2 << (i * 2);
 869          nr2++;
 870       }
 871    }
 872
 873    /* Actually expand immediate only when fully succeeded.
 874     */
 875    *pnr2 = nr2;
 876    return TRUE;
 877 }
 878
 879
 880 static struct ureg_src
 881 decl_immediate( struct ureg_program *ureg,
 882                 const unsigned *v,
 883                 unsigned nr,
 884                 unsigned type )
 885 {
 886    unsigned i, j;
 887    unsigned swizzle = 0;
 888
 889    /* Could do a first pass where we examine all existing immediates
 890     * without expanding.
 891     */
 892
 893    for (i = 0; i < ureg->nr_immediates; i++) {
 894       if (ureg->immediate[i].type != type) {
 895          continue;
 896       }
 897       if (match_or_expand_immediate(v,
 898                                     type,
 899                                     nr,
 900                                     ureg->immediate[i].value.u,
 901                                     &ureg->immediate[i].nr,
 902                                     &swizzle)) {
 903          goto out;
 904       }
 905    }
 906
 907    if (ureg->nr_immediates < UREG_MAX_IMMEDIATE) {
 908       i = ureg->nr_immediates++;
 909       ureg->immediate[i].type = type;
 910       if (match_or_expand_immediate(v,
 911                                     type,
 912                                     nr,
 913                                     ureg->immediate[i].value.u,
 914                                     &ureg->immediate[i].nr,
 915                                     &swizzle)) {
 916          goto out;
 917       }
 918    }
 919
 920    set_bad(ureg);
 921
 922 out:
 923    /* Make sure that all referenced elements are from this immediate.
 924     * Has the effect of making size-one immediates into scalars.
 925     */
 926    if (type == TGSI_IMM_FLOAT64 ||
 927        type == TGSI_IMM_UINT64 ||
 928        type == TGSI_IMM_INT64) {
 929       for (j = nr; j < 4; j+=2) {
 930          swizzle |= (swizzle & 0xf) << (j * 2);
 931       }
 932    } else {
 933       for (j = nr; j < 4; j++) {
 934          swizzle |= (swizzle & 0x3) << (j * 2);
 935       }
 936    }
 937    return ureg_swizzle(ureg_src_register(TGSI_FILE_IMMEDIATE, i),
 938                        (swizzle >> 0) & 0x3,
 939                        (swizzle >> 2) & 0x3,
 940                        (swizzle >> 4) & 0x3,
 941                        (swizzle >> 6) & 0x3);
 942 }
 943
 944
 945 struct ureg_src
 946 ureg_DECL_immediate( struct ureg_program *ureg,
 947                      const float *v,
 948                      unsigned nr )
 949 {
 950    union {
 951       float f[4];
 952       unsigned u[4];
 953    } fu;
 954    unsigned int i;
 955
 956    for (i = 0; i < nr; i++) {
 957       fu.f[i] = v[i];
 958    }
 959
 960    return decl_immediate(ureg, fu.u, nr, TGSI_IMM_FLOAT32);
 961 }
 962
 963 struct ureg_src
 964 ureg_DECL_immediate_f64( struct ureg_program *ureg,
 965                          const double *v,
 966                          unsigned nr )
 967 {
 968    union {
 969       unsigned u[4];
 970       double d[2];
 971    } fu;
 972    unsigned int i;
 973
 974    assert((nr / 2) < 3);
 975    for (i = 0; i < nr / 2; i++) {
 976       fu.d[i] = v[i];
 977    }
 978
 979    return decl_immediate(ureg, fu.u, nr, TGSI_IMM_FLOAT64);
 980 }
 981
 982 struct ureg_src
 983 ureg_DECL_immediate_uint( struct ureg_program *ureg,
 984                           const unsigned *v,
 985                           unsigned nr )
 986 {
 987    return decl_immediate(ureg, v, nr, TGSI_IMM_UINT32);
 988 }
 989
 990
 991 struct ureg_src
 992 ureg_DECL_immediate_block_uint( struct ureg_program *ureg,
 993                                 const unsigned *v,
 994                                 unsigned nr )
 995 {
 996    uint index;
 997    uint i;
 998
 999    if (ureg->nr_immediates + (nr + 3) / 4 > UREG_MAX_IMMEDIATE) {
1000       set_bad(ureg);
1001       return ureg_src_register(TGSI_FILE_IMMEDIATE, 0);
1002    }
1003
1004    index = ureg->nr_immediates;
1005    ureg->nr_immediates += (nr + 3) / 4;
1006
1007    for (i = index; i < ureg->nr_immediates; i++) {
1008       ureg->immediate[i].type = TGSI_IMM_UINT32;
1009       ureg->immediate[i].nr = nr > 4 ? 4 : nr;
1010       memcpy(ureg->immediate[i].value.u,
1011              &v[(i - index) * 4],
1012              ureg->immediate[i].nr * sizeof(uint));
1013       nr -= 4;
1014    }
1015
1016    return ureg_src_register(TGSI_FILE_IMMEDIATE, index);
1017 }
1018
1019
1020 struct ureg_src
1021 ureg_DECL_immediate_int( struct ureg_program *ureg,
1022                          const int *v,
1023                          unsigned nr )
1024 {
1025    return decl_immediate(ureg, (const unsigned *)v, nr, TGSI_IMM_INT32);
1026 }
1027
1028 struct ureg_src
1029 ureg_DECL_immediate_uint64( struct ureg_program *ureg,
1030                             const uint64_t *v,
1031                             unsigned nr )
1032 {
1033    union {
1034       unsigned u[4];
1035       uint64_t u64[2];
1036    } fu;
1037    unsigned int i;
1038
1039    assert((nr / 2) < 3);
1040    for (i = 0; i < nr / 2; i++) {
1041       fu.u64[i] = v[i];
1042    }
1043
1044    return decl_immediate(ureg, fu.u, nr, TGSI_IMM_UINT64);
1045 }
1046
1047 struct ureg_src
1048 ureg_DECL_immediate_int64( struct ureg_program *ureg,
1049                            const int64_t *v,
1050                            unsigned nr )
1051 {
1052    union {
1053       unsigned u[4];
1054       int64_t i64[2];
1055    } fu;
1056    unsigned int i;
1057
1058    assert((nr / 2) < 3);
1059    for (i = 0; i < nr / 2; i++) {
1060       fu.i64[i] = v[i];
1061    }
1062
1063    return decl_immediate(ureg, fu.u, nr, TGSI_IMM_INT64);
1064 }
1065
1066 void
1067 ureg_emit_src( struct ureg_program *ureg,
1068                struct ureg_src src )
1069 {
1070    unsigned size = 1 + (src.Indirect ? 1 : 0) +
1071                    (src.Dimension ? (src.DimIndirect ? 2 : 1) : 0);
1072
1073    union tgsi_any_token *out = get_tokens( ureg, DOMAIN_INSN, size );
1074    unsigned n = 0;
1075
1076    assert(src.File != TGSI_FILE_NULL);
1077    assert(src.File < TGSI_FILE_COUNT);
1078
1079    out[n].value = 0;
1080    out[n].src.File = src.File;
1081    out[n].src.SwizzleX = src.SwizzleX;
1082    out[n].src.SwizzleY = src.SwizzleY;
1083    out[n].src.SwizzleZ = src.SwizzleZ;
1084    out[n].src.SwizzleW = src.SwizzleW;
1085    out[n].src.Index = src.Index;
1086    out[n].src.Negate = src.Negate;
1087    out[0].src.Absolute = src.Absolute;
1088    n++;
1089
1090    if (src.Indirect) {
1091       out[0].src.Indirect = 1;
1092       out[n].value = 0;
1093       out[n].ind.File = src.IndirectFile;
1094       out[n].ind.Swizzle = src.IndirectSwizzle;
1095       out[n].ind.Index = src.IndirectIndex;
1096       if (!ureg->supports_any_inout_decl_range &&
1097           (src.File == TGSI_FILE_INPUT || src.File == TGSI_FILE_OUTPUT))
1098          out[n].ind.ArrayID = 0;
1099       else
1100          out[n].ind.ArrayID = src.ArrayID;
1101       n++;
1102    }
1103
1104    if (src.Dimension) {
1105       out[0].src.Dimension = 1;
1106       out[n].dim.Dimension = 0;
1107       out[n].dim.Padding = 0;
1108       if (src.DimIndirect) {
1109          out[n].dim.Indirect = 1;
1110          out[n].dim.Index = src.DimensionIndex;
1111          n++;
1112          out[n].value = 0;
1113          out[n].ind.File = src.DimIndFile;
1114          out[n].ind.Swizzle = src.DimIndSwizzle;
1115          out[n].ind.Index = src.DimIndIndex;
1116          if (!ureg->supports_any_inout_decl_range &&
1117              (src.File == TGSI_FILE_INPUT || src.File == TGSI_FILE_OUTPUT))
1118             out[n].ind.ArrayID = 0;
1119          else
1120             out[n].ind.ArrayID = src.ArrayID;
1121       } else {
1122          out[n].dim.Indirect = 0;
1123          out[n].dim.Index = src.DimensionIndex;
1124       }
1125       n++;
1126    }
1127
1128    assert(n == size);
1129 }
1130
1131
1132 void
1133 ureg_emit_dst( struct ureg_program *ureg,
1134                struct ureg_dst dst )
1135 {
1136    unsigned size = 1 + (dst.Indirect ? 1 : 0) +
1137                    (dst.Dimension ? (dst.DimIndirect ? 2 : 1) : 0);
1138
1139    union tgsi_any_token *out = get_tokens( ureg, DOMAIN_INSN, size );
1140    unsigned n = 0;
1141
1142    assert(dst.File != TGSI_FILE_NULL);
1143    assert(dst.File != TGSI_FILE_SAMPLER);
1144    assert(dst.File != TGSI_FILE_SAMPLER_VIEW);
1145    assert(dst.File != TGSI_FILE_IMMEDIATE);
1146    assert(dst.File < TGSI_FILE_COUNT);
1147
1148    out[n].value = 0;
1149    out[n].dst.File = dst.File;
1150    out[n].dst.WriteMask = dst.WriteMask;
1151    out[n].dst.Indirect = dst.Indirect;
1152    out[n].dst.Index = dst.Index;
1153    n++;
1154
1155    if (dst.Indirect) {
1156       out[n].value = 0;
1157       out[n].ind.File = dst.IndirectFile;
1158       out[n].ind.Swizzle = dst.IndirectSwizzle;
1159       out[n].ind.Index = dst.IndirectIndex;
1160       if (!ureg->supports_any_inout_decl_range &&
1161           (dst.File == TGSI_FILE_INPUT || dst.File == TGSI_FILE_OUTPUT))
1162          out[n].ind.ArrayID = 0;
1163       else
1164          out[n].ind.ArrayID = dst.ArrayID;
1165       n++;
1166    }
1167
1168    if (dst.Dimension) {
1169       out[0].dst.Dimension = 1;
1170       out[n].dim.Dimension = 0;
1171       out[n].dim.Padding = 0;
1172       if (dst.DimIndirect) {
1173          out[n].dim.Indirect = 1;
1174          out[n].dim.Index = dst.DimensionIndex;
1175          n++;
1176          out[n].value = 0;
1177          out[n].ind.File = dst.DimIndFile;
1178          out[n].ind.Swizzle = dst.DimIndSwizzle;
1179          out[n].ind.Index = dst.DimIndIndex;
1180          if (!ureg->supports_any_inout_decl_range &&
1181              (dst.File == TGSI_FILE_INPUT || dst.File == TGSI_FILE_OUTPUT))
1182             out[n].ind.ArrayID = 0;
1183          else
1184             out[n].ind.ArrayID = dst.ArrayID;
1185       } else {
1186          out[n].dim.Indirect = 0;
1187          out[n].dim.Index = dst.DimensionIndex;
1188       }
1189       n++;
1190    }
1191
1192    assert(n == size);
1193 }
1194
1195
1196 static void validate( unsigned opcode,
1197                       unsigned nr_dst,
1198                       unsigned nr_src )
1199 {
1200 #ifdef DEBUG
1201    const struct tgsi_opcode_info *info = tgsi_get_opcode_info( opcode );
1202    assert(info);
1203    if (info) {
1204       assert(nr_dst == info->num_dst);
1205       assert(nr_src == info->num_src);
1206    }
1207 #endif
1208 }
1209
1210 struct ureg_emit_insn_result
1211 ureg_emit_insn(struct ureg_program *ureg,
1212                unsigned opcode,
1213                boolean saturate,
1214                unsigned num_dst,
1215                unsigned num_src)
1216 {
1217    union tgsi_any_token *out;
1218    uint count = 1;
1219    struct ureg_emit_insn_result result;
1220
1221    validate( opcode, num_dst, num_src );
1222
1223    out = get_tokens( ureg, DOMAIN_INSN, count );
1224    out[0].insn = tgsi_default_instruction();
1225    out[0].insn.Opcode = opcode;
1226    out[0].insn.Saturate = saturate;
1227    out[0].insn.NumDstRegs = num_dst;
1228    out[0].insn.NumSrcRegs = num_src;
1229
1230    result.insn_token = ureg->domain[DOMAIN_INSN].count - count;
1231    result.extended_token = result.insn_token;
1232
1233    ureg->nr_instructions++;
1234
1235    return result;
1236 }
1237
1238
1239 /**
1240  * Emit a label token.
1241  * \param label_token returns a token number indicating where the label
1242  * needs to be patched later.  Later, this value should be passed to the
1243  * ureg_fixup_label() function.
1244  */
1245 void
1246 ureg_emit_label(struct ureg_program *ureg,
1247                 unsigned extended_token,
1248                 unsigned *label_token )
1249 {
1250    union tgsi_any_token *out, *insn;
1251
1252    if (!label_token)
1253       return;
1254
1255    out = get_tokens( ureg, DOMAIN_INSN, 1 );
1256    out[0].value = 0;
1257
1258    insn = retrieve_token( ureg, DOMAIN_INSN, extended_token );
1259    insn->insn.Label = 1;
1260
1261    *label_token = ureg->domain[DOMAIN_INSN].count - 1;
1262 }
1263
1264 /* Will return a number which can be used in a label to point to the
1265  * next instruction to be emitted.
1266  */
1267 unsigned
1268 ureg_get_instruction_number( struct ureg_program *ureg )
1269 {
1270    return ureg->nr_instructions;
1271 }
1272
1273 /* Patch a given label (expressed as a token number) to point to a
1274  * given instruction (expressed as an instruction number).
1275  */
1276 void
1277 ureg_fixup_label(struct ureg_program *ureg,
1278                  unsigned label_token,
1279                  unsigned instruction_number )
1280 {
1281    union tgsi_any_token *out = retrieve_token( ureg, DOMAIN_INSN, label_token );
1282
1283    out->insn_label.Label = instruction_number;
1284 }
1285
1286
1287 void
1288 ureg_emit_texture(struct ureg_program *ureg,
1289                   unsigned extended_token,
1290                   unsigned target, unsigned return_type, unsigned num_offsets)
1291 {
1292    union tgsi_any_token *out, *insn;
1293
1294    out = get_tokens( ureg, DOMAIN_INSN, 1 );
1295    insn = retrieve_token( ureg, DOMAIN_INSN, extended_token );
1296
1297    insn->insn.Texture = 1;
1298
1299    out[0].value = 0;
1300    out[0].insn_texture.Texture = target;
1301    out[0].insn_texture.NumOffsets = num_offsets;
1302    out[0].insn_texture.ReturnType = return_type;
1303 }
1304
1305 void
1306 ureg_emit_texture_offset(struct ureg_program *ureg,
1307                          const struct tgsi_texture_offset *offset)
1308 {
1309    union tgsi_any_token *out;
1310
1311    out = get_tokens( ureg, DOMAIN_INSN, 1);
1312
1313    out[0].value = 0;
1314    out[0].insn_texture_offset = *offset;
1315
1316 }
1317
1318 void
1319 ureg_emit_memory(struct ureg_program *ureg,
1320                  unsigned extended_token,
1321                  unsigned qualifier,
1322                  unsigned texture,
1323                  unsigned format)
1324 {
1325    union tgsi_any_token *out, *insn;
1326
1327    out = get_tokens( ureg, DOMAIN_INSN, 1 );
1328    insn = retrieve_token( ureg, DOMAIN_INSN, extended_token );
1329
1330    insn->insn.Memory = 1;
1331
1332    out[0].value = 0;
1333    out[0].insn_memory.Qualifier = qualifier;
1334    out[0].insn_memory.Texture = texture;
1335    out[0].insn_memory.Format = format;
1336 }
1337
1338 void
1339 ureg_fixup_insn_size(struct ureg_program *ureg,
1340                      unsigned insn )
1341 {
1342    union tgsi_any_token *out = retrieve_token( ureg, DOMAIN_INSN, insn );
1343
1344    assert(out->insn.Type == TGSI_TOKEN_TYPE_INSTRUCTION);
1345    out->insn.NrTokens = ureg->domain[DOMAIN_INSN].count - insn - 1;
1346 }
1347
1348
1349 void
1350 ureg_insn(struct ureg_program *ureg,
1351           unsigned opcode,
1352           const struct ureg_dst *dst,
1353           unsigned nr_dst,
1354           const struct ureg_src *src,
1355           unsigned nr_src )
1356 {
1357    struct ureg_emit_insn_result insn;
1358    unsigned i;
1359    boolean saturate;
1360
1361    if (nr_dst && ureg_dst_is_empty(dst[0])) {
1362       return;
1363    }
1364
1365    saturate = nr_dst ? dst[0].Saturate : FALSE;
1366
1367    insn = ureg_emit_insn(ureg,
1368                          opcode,
1369                          saturate,
1370                          nr_dst,
1371                          nr_src);
1372
1373    for (i = 0; i < nr_dst; i++)
1374       ureg_emit_dst( ureg, dst[i] );
1375
1376    for (i = 0; i < nr_src; i++)
1377       ureg_emit_src( ureg, src[i] );
1378
1379    ureg_fixup_insn_size( ureg, insn.insn_token );
1380 }
1381
1382 void
1383 ureg_tex_insn(struct ureg_program *ureg,
1384               unsigned opcode,
1385               const struct ureg_dst *dst,
1386               unsigned nr_dst,
1387               unsigned target,
1388               unsigned return_type,
1389               const struct tgsi_texture_offset *texoffsets,
1390               unsigned nr_offset,
1391               const struct ureg_src *src,
1392               unsigned nr_src )
1393 {
1394    struct ureg_emit_insn_result insn;
1395    unsigned i;
1396    boolean saturate;
1397
1398    if (nr_dst && ureg_dst_is_empty(dst[0])) {
1399       return;
1400    }
1401
1402    saturate = nr_dst ? dst[0].Saturate : FALSE;
1403
1404    insn = ureg_emit_insn(ureg,
1405                          opcode,
1406                          saturate,
1407                          nr_dst,
1408                          nr_src);
1409
1410    ureg_emit_texture( ureg, insn.extended_token, target, return_type,
1411                       nr_offset );
1412
1413    for (i = 0; i < nr_offset; i++)
1414       ureg_emit_texture_offset( ureg, &texoffsets[i]);
1415
1416    for (i = 0; i < nr_dst; i++)
1417       ureg_emit_dst( ureg, dst[i] );
1418
1419    for (i = 0; i < nr_src; i++)
1420       ureg_emit_src( ureg, src[i] );
1421
1422    ureg_fixup_insn_size( ureg, insn.insn_token );
1423 }
1424
1425
1426 void
1427 ureg_memory_insn(struct ureg_program *ureg,
1428                  unsigned opcode,
1429                  const struct ureg_dst *dst,
1430                  unsigned nr_dst,
1431                  const struct ureg_src *src,
1432                  unsigned nr_src,
1433                  unsigned qualifier,
1434                  unsigned texture,
1435                  unsigned format)
1436 {
1437    struct ureg_emit_insn_result insn;
1438    unsigned i;
1439
1440    insn = ureg_emit_insn(ureg,
1441                          opcode,
1442                          FALSE,
1443                          nr_dst,
1444                          nr_src);
1445
1446    ureg_emit_memory(ureg, insn.extended_token, qualifier, texture, format);
1447
1448    for (i = 0; i < nr_dst; i++)
1449       ureg_emit_dst(ureg, dst[i]);
1450
1451    for (i = 0; i < nr_src; i++)
1452       ureg_emit_src(ureg, src[i]);
1453
1454    ureg_fixup_insn_size(ureg, insn.insn_token);
1455 }
1456
1457
1458 static void
1459 emit_decl_semantic(struct ureg_program *ureg,
1460                    unsigned file,
1461                    unsigned first,
1462                    unsigned last,
1463                    unsigned semantic_name,
1464                    unsigned semantic_index,
1465                    unsigned streams,
1466                    unsigned usage_mask,
1467                    unsigned array_id)
1468 {
1469    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL, array_id ? 4 : 3);
1470
1471    out[0].value = 0;
1472    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1473    out[0].decl.NrTokens = 3;
1474    out[0].decl.File = file;
1475    out[0].decl.UsageMask = usage_mask;
1476    out[0].decl.Semantic = 1;
1477    out[0].decl.Array = array_id != 0;
1478
1479    out[1].value = 0;
1480    out[1].decl_range.First = first;
1481    out[1].decl_range.Last = last;
1482
1483    out[2].value = 0;
1484    out[2].decl_semantic.Name = semantic_name;
1485    out[2].decl_semantic.Index = semantic_index;
1486    out[2].decl_semantic.StreamX = streams & 3;
1487    out[2].decl_semantic.StreamY = (streams >> 2) & 3;
1488    out[2].decl_semantic.StreamZ = (streams >> 4) & 3;
1489    out[2].decl_semantic.StreamW = (streams >> 6) & 3;
1490
1491    if (array_id) {
1492       out[3].value = 0;
1493       out[3].array.ArrayID = array_id;
1494    }
1495 }
1496
1497
1498 static void
1499 emit_decl_fs(struct ureg_program *ureg,
1500              unsigned file,
1501              unsigned first,
1502              unsigned last,
1503              unsigned semantic_name,
1504              unsigned semantic_index,
1505              unsigned interpolate,
1506              unsigned cylindrical_wrap,
1507              unsigned interpolate_location,
1508              unsigned array_id,
1509              unsigned usage_mask)
1510 {
1511    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL,
1512                                           array_id ? 5 : 4);
1513
1514    out[0].value = 0;
1515    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1516    out[0].decl.NrTokens = 4;
1517    out[0].decl.File = file;
1518    out[0].decl.UsageMask = usage_mask;
1519    out[0].decl.Interpolate = 1;
1520    out[0].decl.Semantic = 1;
1521    out[0].decl.Array = array_id != 0;
1522
1523    out[1].value = 0;
1524    out[1].decl_range.First = first;
1525    out[1].decl_range.Last = last;
1526
1527    out[2].value = 0;
1528    out[2].decl_interp.Interpolate = interpolate;
1529    out[2].decl_interp.CylindricalWrap = cylindrical_wrap;
1530    out[2].decl_interp.Location = interpolate_location;
1531
1532    out[3].value = 0;
1533    out[3].decl_semantic.Name = semantic_name;
1534    out[3].decl_semantic.Index = semantic_index;
1535
1536    if (array_id) {
1537       out[4].value = 0;
1538       out[4].array.ArrayID = array_id;
1539    }
1540 }
1541
1542 static void
1543 emit_decl_temps( struct ureg_program *ureg,
1544                  unsigned first, unsigned last,
1545                  boolean local,
1546                  unsigned arrayid )
1547 {
1548    union tgsi_any_token *out = get_tokens( ureg, DOMAIN_DECL,
1549                                            arrayid ? 3 : 2 );
1550
1551    out[0].value = 0;
1552    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1553    out[0].decl.NrTokens = 2;
1554    out[0].decl.File = TGSI_FILE_TEMPORARY;
1555    out[0].decl.UsageMask = TGSI_WRITEMASK_XYZW;
1556    out[0].decl.Local = local;
1557
1558    out[1].value = 0;
1559    out[1].decl_range.First = first;
1560    out[1].decl_range.Last = last;
1561
1562    if (arrayid) {
1563       out[0].decl.Array = 1;
1564       out[2].value = 0;
1565       out[2].array.ArrayID = arrayid;
1566    }
1567 }
1568
1569 static void emit_decl_range( struct ureg_program *ureg,
1570                              unsigned file,
1571                              unsigned first,
1572                              unsigned count )
1573 {
1574    union tgsi_any_token *out = get_tokens( ureg, DOMAIN_DECL, 2 );
1575
1576    out[0].value = 0;
1577    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1578    out[0].decl.NrTokens = 2;
1579    out[0].decl.File = file;
1580    out[0].decl.UsageMask = TGSI_WRITEMASK_XYZW;
1581    out[0].decl.Semantic = 0;
1582
1583    out[1].value = 0;
1584    out[1].decl_range.First = first;
1585    out[1].decl_range.Last = first + count - 1;
1586 }
1587
1588 static void
1589 emit_decl_range2D(struct ureg_program *ureg,
1590                   unsigned file,
1591                   unsigned first,
1592                   unsigned last,
1593                   unsigned index2D)
1594 {
1595    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL, 3);
1596
1597    out[0].value = 0;
1598    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1599    out[0].decl.NrTokens = 3;
1600    out[0].decl.File = file;
1601    out[0].decl.UsageMask = TGSI_WRITEMASK_XYZW;
1602    out[0].decl.Dimension = 1;
1603
1604    out[1].value = 0;
1605    out[1].decl_range.First = first;
1606    out[1].decl_range.Last = last;
1607
1608    out[2].value = 0;
1609    out[2].decl_dim.Index2D = index2D;
1610 }
1611
1612 static void
1613 emit_decl_sampler_view(struct ureg_program *ureg,
1614                        unsigned index,
1615                        unsigned target,
1616                        unsigned return_type_x,
1617                        unsigned return_type_y,
1618                        unsigned return_type_z,
1619                        unsigned return_type_w )
1620 {
1621    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL, 3);
1622
1623    out[0].value = 0;
1624    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1625    out[0].decl.NrTokens = 3;
1626    out[0].decl.File = TGSI_FILE_SAMPLER_VIEW;
1627    out[0].decl.UsageMask = TGSI_WRITEMASK_XYZW;
1628
1629    out[1].value = 0;
1630    out[1].decl_range.First = index;
1631    out[1].decl_range.Last = index;
1632
1633    out[2].value = 0;
1634    out[2].decl_sampler_view.Resource    = target;
1635    out[2].decl_sampler_view.ReturnTypeX = return_type_x;
1636    out[2].decl_sampler_view.ReturnTypeY = return_type_y;
1637    out[2].decl_sampler_view.ReturnTypeZ = return_type_z;
1638    out[2].decl_sampler_view.ReturnTypeW = return_type_w;
1639 }
1640
1641 static void
1642 emit_decl_image(struct ureg_program *ureg,
1643                 unsigned index,
1644                 unsigned target,
1645                 unsigned format,
1646                 boolean wr,
1647                 boolean raw)
1648 {
1649    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL, 3);
1650
1651    out[0].value = 0;
1652    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1653    out[0].decl.NrTokens = 3;
1654    out[0].decl.File = TGSI_FILE_IMAGE;
1655    out[0].decl.UsageMask = TGSI_WRITEMASK_XYZW;
1656
1657    out[1].value = 0;
1658    out[1].decl_range.First = index;
1659    out[1].decl_range.Last = index;
1660
1661    out[2].value = 0;
1662    out[2].decl_image.Resource = target;
1663    out[2].decl_image.Writable = wr;
1664    out[2].decl_image.Raw      = raw;
1665    out[2].decl_image.Format   = format;
1666 }
1667
1668 static void
1669 emit_decl_buffer(struct ureg_program *ureg,
1670                  unsigned index,
1671                  bool atomic)
1672 {
1673    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL, 2);
1674
1675    out[0].value = 0;
1676    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1677    out[0].decl.NrTokens = 2;
1678    out[0].decl.File = TGSI_FILE_BUFFER;
1679    out[0].decl.UsageMask = TGSI_WRITEMASK_XYZW;
1680    out[0].decl.Atomic = atomic;
1681
1682    out[1].value = 0;
1683    out[1].decl_range.First = index;
1684    out[1].decl_range.Last = index;
1685 }
1686
1687 static void
1688 emit_decl_memory(struct ureg_program *ureg, unsigned memory_type)
1689 {
1690    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL, 2);
1691
1692    out[0].value = 0;
1693    out[0].decl.Type = TGSI_TOKEN_TYPE_DECLARATION;
1694    out[0].decl.NrTokens = 2;
1695    out[0].decl.File = TGSI_FILE_MEMORY;
1696    out[0].decl.UsageMask = TGSI_WRITEMASK_XYZW;
1697    out[0].decl.MemType = memory_type;
1698
1699    out[1].value = 0;
1700    out[1].decl_range.First = memory_type;
1701    out[1].decl_range.Last = memory_type;
1702 }
1703
1704 static void
1705 emit_immediate( struct ureg_program *ureg,
1706                 const unsigned *v,
1707                 unsigned type )
1708 {
1709    union tgsi_any_token *out = get_tokens( ureg, DOMAIN_DECL, 5 );
1710
1711    out[0].value = 0;
1712    out[0].imm.Type = TGSI_TOKEN_TYPE_IMMEDIATE;
1713    out[0].imm.NrTokens = 5;
1714    out[0].imm.DataType = type;
1715    out[0].imm.Padding = 0;
1716
1717    out[1].imm_data.Uint = v[0];
1718    out[2].imm_data.Uint = v[1];
1719    out[3].imm_data.Uint = v[2];
1720    out[4].imm_data.Uint = v[3];
1721 }
1722
1723 static void
1724 emit_property(struct ureg_program *ureg,
1725               unsigned name,
1726               unsigned data)
1727 {
1728    union tgsi_any_token *out = get_tokens(ureg, DOMAIN_DECL, 2);
1729
1730    out[0].value = 0;
1731    out[0].prop.Type = TGSI_TOKEN_TYPE_PROPERTY;
1732    out[0].prop.NrTokens = 2;
1733    out[0].prop.PropertyName = name;
1734
1735    out[1].prop_data.Data = data;
1736 }
1737
1738
1739 static void emit_decls( struct ureg_program *ureg )
1740 {
1741    unsigned i,j;
1742
1743    for (i = 0; i < ARRAY_SIZE(ureg->properties); i++)
1744       if (ureg->properties[i] != ~0)
1745          emit_property(ureg, i, ureg->properties[i]);
1746
1747    if (ureg->processor == PIPE_SHADER_VERTEX) {
1748       for (i = 0; i < PIPE_MAX_ATTRIBS; i++) {
1749          if (ureg->vs_inputs[i/32] & (1u << (i%32))) {
1750             emit_decl_range( ureg, TGSI_FILE_INPUT, i, 1 );
1751          }
1752       }
1753    } else if (ureg->processor == PIPE_SHADER_FRAGMENT) {
1754       if (ureg->supports_any_inout_decl_range) {
1755          for (i = 0; i < ureg->nr_inputs; i++) {
1756             emit_decl_fs(ureg,
1757                          TGSI_FILE_INPUT,
1758                          ureg->input[i].first,
1759                          ureg->input[i].last,
1760                          ureg->input[i].semantic_name,
1761                          ureg->input[i].semantic_index,
1762                          ureg->input[i].interp,
1763                          ureg->input[i].cylindrical_wrap,
1764                          ureg->input[i].interp_location,
1765                          ureg->input[i].array_id,
1766                          ureg->input[i].usage_mask);
1767          }
1768       }
1769       else {
1770          for (i = 0; i < ureg->nr_inputs; i++) {
1771             for (j = ureg->input[i].first; j <= ureg->input[i].last; j++) {
1772                emit_decl_fs(ureg,
1773                             TGSI_FILE_INPUT,
1774                             j, j,
1775                             ureg->input[i].semantic_name,
1776                             ureg->input[i].semantic_index +
1777                             (j - ureg->input[i].first),
1778                             ureg->input[i].interp,
1779                             ureg->input[i].cylindrical_wrap,
1780                             ureg->input[i].interp_location, 0,
1781                             ureg->input[i].usage_mask);
1782             }
1783          }
1784       }
1785    } else {
1786       if (ureg->supports_any_inout_decl_range) {
1787          for (i = 0; i < ureg->nr_inputs; i++) {
1788             emit_decl_semantic(ureg,
1789                                TGSI_FILE_INPUT,
1790                                ureg->input[i].first,
1791                                ureg->input[i].last,
1792                                ureg->input[i].semantic_name,
1793                                ureg->input[i].semantic_index,
1794                                0,
1795                                TGSI_WRITEMASK_XYZW,
1796                                ureg->input[i].array_id);
1797          }
1798       }
1799       else {
1800          for (i = 0; i < ureg->nr_inputs; i++) {
1801             for (j = ureg->input[i].first; j <= ureg->input[i].last; j++) {
1802                emit_decl_semantic(ureg,
1803                                   TGSI_FILE_INPUT,
1804                                   j, j,
1805                                   ureg->input[i].semantic_name,
1806                                   ureg->input[i].semantic_index +
1807                                   (j - ureg->input[i].first),
1808                                   0,
1809                                   TGSI_WRITEMASK_XYZW, 0);
1810             }
1811          }
1812       }
1813    }
1814
1815    for (i = 0; i < ureg->nr_system_values; i++) {
1816       emit_decl_semantic(ureg,
1817                          TGSI_FILE_SYSTEM_VALUE,
1818                          i,
1819                          i,
1820                          ureg->system_value[i].semantic_name,
1821                          ureg->system_value[i].semantic_index,
1822                          0,
1823                          TGSI_WRITEMASK_XYZW, 0);
1824    }
1825
1826    if (ureg->supports_any_inout_decl_range) {
1827       for (i = 0; i < ureg->nr_outputs; i++) {
1828          emit_decl_semantic(ureg,
1829                             TGSI_FILE_OUTPUT,
1830                             ureg->output[i].first,
1831                             ureg->output[i].last,
1832                             ureg->output[i].semantic_name,
1833                             ureg->output[i].semantic_index,
1834                             ureg->output[i].streams,
1835                             ureg->output[i].usage_mask,
1836                             ureg->output[i].array_id);
1837       }
1838    }
1839    else {
1840       for (i = 0; i < ureg->nr_outputs; i++) {
1841          for (j = ureg->output[i].first; j <= ureg->output[i].last; j++) {
1842             emit_decl_semantic(ureg,
1843                                TGSI_FILE_OUTPUT,
1844                                j, j,
1845                                ureg->output[i].semantic_name,
1846                                ureg->output[i].semantic_index +
1847                                (j - ureg->output[i].first),
1848                                ureg->output[i].streams,
1849                                ureg->output[i].usage_mask, 0);
1850          }
1851       }
1852    }
1853
1854    for (i = 0; i < ureg->nr_samplers; i++) {
1855       emit_decl_range( ureg,
1856                        TGSI_FILE_SAMPLER,
1857                        ureg->sampler[i].Index, 1 );
1858    }
1859
1860    for (i = 0; i < ureg->nr_sampler_views; i++) {
1861       emit_decl_sampler_view(ureg,
1862                              ureg->sampler_view[i].index,
1863                              ureg->sampler_view[i].target,
1864                              ureg->sampler_view[i].return_type_x,
1865                              ureg->sampler_view[i].return_type_y,
1866                              ureg->sampler_view[i].return_type_z,
1867                              ureg->sampler_view[i].return_type_w);
1868    }
1869
1870    for (i = 0; i < ureg->nr_images; i++) {
1871       emit_decl_image(ureg,
1872                       ureg->image[i].index,
1873                       ureg->image[i].target,
1874                       ureg->image[i].format,
1875                       ureg->image[i].wr,
1876                       ureg->image[i].raw);
1877    }
1878
1879    for (i = 0; i < ureg->nr_buffers; i++) {
1880       emit_decl_buffer(ureg, ureg->buffer[i].index, ureg->buffer[i].atomic);
1881    }
1882
1883    for (i = 0; i < TGSI_MEMORY_TYPE_COUNT; i++) {
1884       if (ureg->use_memory[i])
1885          emit_decl_memory(ureg, i);
1886    }
1887
1888    if (ureg->const_decls.nr_constant_ranges) {
1889       for (i = 0; i < ureg->const_decls.nr_constant_ranges; i++) {
1890          emit_decl_range(ureg,
1891                          TGSI_FILE_CONSTANT,
1892                          ureg->const_decls.constant_range[i].first,
1893                          ureg->const_decls.constant_range[i].last - ureg->const_decls.constant_range[i].first + 1);
1894       }
1895    }
1896
1897    for (i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
1898       struct const_decl *decl = &ureg->const_decls2D[i];
1899
1900       if (decl->nr_constant_ranges) {
1901          uint j;
1902
1903          for (j = 0; j < decl->nr_constant_ranges; j++) {
1904             emit_decl_range2D(ureg,
1905                               TGSI_FILE_CONSTANT,
1906                               decl->constant_range[j].first,
1907                               decl->constant_range[j].last,
1908                               i);
1909          }
1910       }
1911    }
1912
1913    if (ureg->nr_temps) {
1914       unsigned array = 0;
1915       for (i = 0; i < ureg->nr_temps;) {
1916          boolean local = util_bitmask_get(ureg->local_temps, i);
1917          unsigned first = i;
1918          i = util_bitmask_get_next_index(ureg->decl_temps, i + 1);
1919          if (i == UTIL_BITMASK_INVALID_INDEX)
1920             i = ureg->nr_temps;
1921
1922          if (array < ureg->nr_array_temps && ureg->array_temps[array] == first)
1923             emit_decl_temps( ureg, first, i - 1, local, ++array );
1924          else
1925             emit_decl_temps( ureg, first, i - 1, local, 0 );
1926       }
1927    }
1928
1929    if (ureg->nr_addrs) {
1930       emit_decl_range( ureg,
1931                        TGSI_FILE_ADDRESS,
1932                        0, ureg->nr_addrs );
1933    }
1934
1935    for (i = 0; i < ureg->nr_immediates; i++) {
1936       emit_immediate( ureg,
1937                       ureg->immediate[i].value.u,
1938                       ureg->immediate[i].type );
1939    }
1940 }
1941
1942 /* Append the instruction tokens onto the declarations to build a
1943  * contiguous stream suitable to send to the driver.
1944  */
1945 static void copy_instructions( struct ureg_program *ureg )
1946 {
1947    unsigned nr_tokens = ureg->domain[DOMAIN_INSN].count;
1948    union tgsi_any_token *out = get_tokens( ureg,
1949                                            DOMAIN_DECL,
1950                                            nr_tokens );
1951
1952    memcpy(out,
1953           ureg->domain[DOMAIN_INSN].tokens,
1954           nr_tokens * sizeof out[0] );
1955 }
1956
1957
1958 static void
1959 fixup_header_size(struct ureg_program *ureg)
1960 {
1961    union tgsi_any_token *out = retrieve_token( ureg, DOMAIN_DECL, 0 );
1962
1963    out->header.BodySize = ureg->domain[DOMAIN_DECL].count - 2;
1964 }
1965
1966
1967 static void
1968 emit_header( struct ureg_program *ureg )
1969 {
1970    union tgsi_any_token *out = get_tokens( ureg, DOMAIN_DECL, 2 );
1971
1972    out[0].header.HeaderSize = 2;
1973    out[0].header.BodySize = 0;
1974
1975    out[1].processor.Processor = ureg->processor;
1976    out[1].processor.Padding = 0;
1977 }
1978
1979
1980 const struct tgsi_token *ureg_finalize( struct ureg_program *ureg )
1981 {
1982    const struct tgsi_token *tokens;
1983
1984    switch (ureg->processor) {
1985    case PIPE_SHADER_VERTEX:
1986    case PIPE_SHADER_TESS_EVAL:
1987       ureg_property(ureg, TGSI_PROPERTY_NEXT_SHADER,
1988                     ureg->next_shader_processor == -1 ?
1989                        PIPE_SHADER_FRAGMENT :
1990                        ureg->next_shader_processor);
1991       break;
1992    }
1993
1994    emit_header( ureg );
1995    emit_decls( ureg );
1996    copy_instructions( ureg );
1997    fixup_header_size( ureg );
1998
1999    if (ureg->domain[0].tokens == error_tokens ||
2000        ureg->domain[1].tokens == error_tokens) {
2001       debug_printf("%s: error in generated shader\n", __FUNCTION__);
2002       assert(0);
2003       return NULL;
2004    }
2005
2006    tokens = &ureg->domain[DOMAIN_DECL].tokens[0].token;
2007
2008    if (0) {
2009       debug_printf("%s: emitted shader %d tokens:\n", __FUNCTION__,
2010                    ureg->domain[DOMAIN_DECL].count);
2011       tgsi_dump( tokens, 0 );
2012    }
2013
2014 #if DEBUG
2015    if (tokens && !tgsi_sanity_check(tokens)) {
2016       debug_printf("tgsi_ureg.c, sanity check failed on generated tokens:\n");
2017       tgsi_dump(tokens, 0);
2018       assert(0);
2019    }
2020 #endif
2021
2022
2023    return tokens;
2024 }
2025
2026
2027 void *ureg_create_shader( struct ureg_program *ureg,
2028                           struct pipe_context *pipe,
2029                           const struct pipe_stream_output_info *so )
2030 {
2031    struct pipe_shader_state state;
2032
2033    pipe_shader_state_from_tgsi(&state, ureg_finalize(ureg));
2034    if(!state.tokens)
2035       return NULL;
2036
2037    if (so)
2038       state.stream_output = *so;
2039
2040    switch (ureg->processor) {
2041    case PIPE_SHADER_VERTEX:
2042       return pipe->create_vs_state(pipe, &state);
2043    case PIPE_SHADER_TESS_CTRL:
2044       return pipe->create_tcs_state(pipe, &state);
2045    case PIPE_SHADER_TESS_EVAL:
2046       return pipe->create_tes_state(pipe, &state);
2047    case PIPE_SHADER_GEOMETRY:
2048       return pipe->create_gs_state(pipe, &state);
2049    case PIPE_SHADER_FRAGMENT:
2050       return pipe->create_fs_state(pipe, &state);
2051    default:
2052       return NULL;
2053    }
2054 }
2055
2056
2057 const struct tgsi_token *ureg_get_tokens( struct ureg_program *ureg,
2058                                           unsigned *nr_tokens )
2059 {
2060    const struct tgsi_token *tokens;
2061
2062    ureg_finalize(ureg);
2063
2064    tokens = &ureg->domain[DOMAIN_DECL].tokens[0].token;
2065
2066    if (nr_tokens)
2067       *nr_tokens = ureg->domain[DOMAIN_DECL].count;
2068
2069    ureg->domain[DOMAIN_DECL].tokens = 0;
2070    ureg->domain[DOMAIN_DECL].size = 0;
2071    ureg->domain[DOMAIN_DECL].order = 0;
2072    ureg->domain[DOMAIN_DECL].count = 0;
2073
2074    return tokens;
2075 }
2076
2077
2078 void ureg_free_tokens( const struct tgsi_token *tokens )
2079 {
2080    FREE((struct tgsi_token *)tokens);
2081 }
2082
2083
2084 struct ureg_program *
2085 ureg_create(unsigned processor)
2086 {
2087    return ureg_create_with_screen(processor, NULL);
2088 }
2089
2090
2091 struct ureg_program *
2092 ureg_create_with_screen(unsigned processor, struct pipe_screen *screen)
2093 {
2094    int i;
2095    struct ureg_program *ureg = CALLOC_STRUCT( ureg_program );
2096    if (!ureg)
2097       goto no_ureg;
2098
2099    ureg->processor = processor;
2100    ureg->supports_any_inout_decl_range =
2101       screen &&
2102       screen->get_shader_param(screen, processor,
2103                                PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE) != 0;
2104    ureg->next_shader_processor = -1;
2105
2106    for (i = 0; i < ARRAY_SIZE(ureg->properties); i++)
2107       ureg->properties[i] = ~0;
2108
2109    ureg->free_temps = util_bitmask_create();
2110    if (ureg->free_temps == NULL)
2111       goto no_free_temps;
2112
2113    ureg->local_temps = util_bitmask_create();
2114    if (ureg->local_temps == NULL)
2115       goto no_local_temps;
2116
2117    ureg->decl_temps = util_bitmask_create();
2118    if (ureg->decl_temps == NULL)
2119       goto no_decl_temps;
2120
2121    return ureg;
2122
2123 no_decl_temps:
2124    util_bitmask_destroy(ureg->local_temps);
2125 no_local_temps:
2126    util_bitmask_destroy(ureg->free_temps);
2127 no_free_temps:
2128    FREE(ureg);
2129 no_ureg:
2130    return NULL;
2131 }
2132
2133
2134 void
2135 ureg_set_next_shader_processor(struct ureg_program *ureg, unsigned processor)
2136 {
2137    ureg->next_shader_processor = processor;
2138 }
2139
2140
2141 unsigned
2142 ureg_get_nr_outputs( const struct ureg_program *ureg )
2143 {
2144    if (!ureg)
2145       return 0;
2146    return ureg->nr_outputs;
2147 }
2148
2149
2150 void ureg_destroy( struct ureg_program *ureg )
2151 {
2152    unsigned i;
2153
2154    for (i = 0; i < ARRAY_SIZE(ureg->domain); i++) {
2155       if (ureg->domain[i].tokens &&
2156           ureg->domain[i].tokens != error_tokens)
2157          FREE(ureg->domain[i].tokens);
2158    }
2159
2160    util_bitmask_destroy(ureg->free_temps);
2161    util_bitmask_destroy(ureg->local_temps);
2162    util_bitmask_destroy(ureg->decl_temps);
2163
2164    FREE(ureg);
2165 }