gallium: rename draw() to draw_elements() in vbuf code - mesa.git - Unnamed repository; edit this file 'description' to name the repository.

diff options

author	Brian Paul <[email protected]>	2010-05-05 14:00:58 -0600
committer	Brian Paul <[email protected]>	2010-05-05 18:19:37 -0600
commit	740e50c60f03d194aafab93d5251699964800979 (patch)
tree	102a978a79b064f077b6dea20b026f53ffa9786a /src/glx/indirect_init.c
parent	246d39059e21bdc840128d448bcd79a957bbd1d1 (diff)

gallium: rename draw() to draw_elements() in vbuf code

Now we have draw_elements() and draw_arrays() to be consistent with the pipe_context drawing functions.

Diffstat (limited to 'src/glx/indirect_init.c')

0 files changed, 0 insertions, 0 deletions

n105' href='#n105'>105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584

/*
 * Copyright © 2012 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#include "mtypes.h"
#include "context.h"
#include "glformats.h"
#include "macros.h"
#include "enums.h"
#include "fbobject.h"
#include "formatquery.h"
#include "teximage.h"
#include "texparam.h"
#include "texobj.h"
#include "get.h"
#include "genmipmap.h"
#include "shaderimage.h"
#include "texcompress.h"
#include "textureview.h"

static bool
_is_renderable(struct gl_context *ctx, GLenum internalformat)
{
   /*  Section 4.4.4 on page 212 of the  GLES 3.0.4 spec says:
    *
    *     "An internal format is color-renderable if it is one of the
    *     formats from table 3.13 noted as color-renderable or if it
    *     is unsized format RGBA or RGB."
    *
    * Therefore, we must accept GL_RGB and GL_RGBA here.
    */
   if (internalformat != GL_RGB && internalformat != GL_RGBA &&
       _mesa_base_fbo_format(ctx, internalformat) == 0)
      return false;

   return true;
}

/* Handles the cases where either ARB_internalformat_query or
 * ARB_internalformat_query2 have to return an error.
 */
static bool
_legal_parameters(struct gl_context *ctx, GLenum target, GLenum internalformat,
                  GLenum pname, GLsizei bufSize, GLint *params)

{
   bool query2 = _mesa_has_ARB_internalformat_query2(ctx);

   /* The ARB_internalformat_query2 spec says:
    *
    *    "The INVALID_ENUM error is generated if the <target> parameter to
    *    GetInternalformati*v is not one of the targets listed in Table 6.xx.
    */
   switch(target){
   case GL_TEXTURE_1D:
   case GL_TEXTURE_1D_ARRAY:
   case GL_TEXTURE_2D:
   case GL_TEXTURE_2D_ARRAY:
   case GL_TEXTURE_3D:
   case GL_TEXTURE_CUBE_MAP:
   case GL_TEXTURE_CUBE_MAP_ARRAY:
   case GL_TEXTURE_RECTANGLE:
   case GL_TEXTURE_BUFFER:
      if (!query2) {
         /* The ARB_internalformat_query spec says:
          *
          *     "If the <target> parameter to GetInternalformativ is not one of
          *      TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY
          *      or RENDERBUFFER then an INVALID_ENUM error is generated.
          */
         _mesa_error(ctx, GL_INVALID_ENUM,
                     "glGetInternalformativ(target=%s)",
                     _mesa_enum_to_string(target));

         return false;
      }
      break;

   case GL_RENDERBUFFER:
      break;

   case GL_TEXTURE_2D_MULTISAMPLE:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
      /* The non-existence of ARB_texture_multisample is treated in
       * ARB_internalformat_query implementation like an error.
       */
      if (!query2 &&
          !(_mesa_has_ARB_texture_multisample(ctx) || _mesa_is_gles31(ctx))) {
         _mesa_error(ctx, GL_INVALID_ENUM,
                     "glGetInternalformativ(target=%s)",
                     _mesa_enum_to_string(target));

         return false;
      }
      break;

   default:
      _mesa_error(ctx, GL_INVALID_ENUM,
                  "glGetInternalformativ(target=%s)",
                  _mesa_enum_to_string(target));
      return false;
   }


   /* The ARB_internalformat_query2 spec says:
    *
    *     "The INVALID_ENUM error is generated if the <pname> parameter is
    *     not one of the listed possibilities.
    */
   switch(pname){
   case GL_SAMPLES:
   case GL_NUM_SAMPLE_COUNTS:
      break;

   case GL_SRGB_DECODE_ARB:
      /* The ARB_internalformat_query2 spec says:
       *
       *     "If ARB_texture_sRGB_decode or EXT_texture_sRGB_decode or
       *     equivalent functionality is not supported, queries for the
       *     SRGB_DECODE_ARB <pname> set the INVALID_ENUM error.
       */
      if (!_mesa_has_EXT_texture_sRGB_decode(ctx)) {
         _mesa_error(ctx, GL_INVALID_ENUM,
                     "glGetInternalformativ(pname=%s)",
                     _mesa_enum_to_string(pname));
         return false;
      }
      /* fallthrough */
   case GL_INTERNALFORMAT_SUPPORTED:
   case GL_INTERNALFORMAT_PREFERRED:
   case GL_INTERNALFORMAT_RED_SIZE:
   case GL_INTERNALFORMAT_GREEN_SIZE:
   case GL_INTERNALFORMAT_BLUE_SIZE:
   case GL_INTERNALFORMAT_ALPHA_SIZE:
   case GL_INTERNALFORMAT_DEPTH_SIZE:
   case GL_INTERNALFORMAT_STENCIL_SIZE:
   case GL_INTERNALFORMAT_SHARED_SIZE:
   case GL_INTERNALFORMAT_RED_TYPE:
   case GL_INTERNALFORMAT_GREEN_TYPE:
   case GL_INTERNALFORMAT_BLUE_TYPE:
   case GL_INTERNALFORMAT_ALPHA_TYPE:
   case GL_INTERNALFORMAT_DEPTH_TYPE:
   case GL_INTERNALFORMAT_STENCIL_TYPE:
   case GL_MAX_WIDTH:
   case GL_MAX_HEIGHT:
   case GL_MAX_DEPTH:
   case GL_MAX_LAYERS:
   case GL_MAX_COMBINED_DIMENSIONS:
   case GL_COLOR_COMPONENTS:
   case GL_DEPTH_COMPONENTS:
   case GL_STENCIL_COMPONENTS:
   case GL_COLOR_RENDERABLE:
   case GL_DEPTH_RENDERABLE:
   case GL_STENCIL_RENDERABLE:
   case GL_FRAMEBUFFER_RENDERABLE:
   case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
   case GL_FRAMEBUFFER_BLEND:
   case GL_READ_PIXELS:
   case GL_READ_PIXELS_FORMAT:
   case GL_READ_PIXELS_TYPE:
   case GL_TEXTURE_IMAGE_FORMAT:
   case GL_TEXTURE_IMAGE_TYPE:
   case GL_GET_TEXTURE_IMAGE_FORMAT:
   case GL_GET_TEXTURE_IMAGE_TYPE:
   case GL_MIPMAP:
   case GL_MANUAL_GENERATE_MIPMAP:
   case GL_AUTO_GENERATE_MIPMAP:
   case GL_COLOR_ENCODING:
   case GL_SRGB_READ:
   case GL_SRGB_WRITE:
   case GL_FILTER:
   case GL_VERTEX_TEXTURE:
   case GL_TESS_CONTROL_TEXTURE:
   case GL_TESS_EVALUATION_TEXTURE:
   case GL_GEOMETRY_TEXTURE:
   case GL_FRAGMENT_TEXTURE:
   case GL_COMPUTE_TEXTURE:
   case GL_TEXTURE_SHADOW:
   case GL_TEXTURE_GATHER:
   case GL_TEXTURE_GATHER_SHADOW:
   case GL_SHADER_IMAGE_LOAD:
   case GL_SHADER_IMAGE_STORE:
   case GL_SHADER_IMAGE_ATOMIC:
   case GL_IMAGE_TEXEL_SIZE:
   case GL_IMAGE_COMPATIBILITY_CLASS:
   case GL_IMAGE_PIXEL_FORMAT:
   case GL_IMAGE_PIXEL_TYPE:
   case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
   case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST:
   case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST:
   case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE:
   case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE:
   case GL_TEXTURE_COMPRESSED:
   case GL_TEXTURE_COMPRESSED_BLOCK_WIDTH:
   case GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT:
   case GL_TEXTURE_COMPRESSED_BLOCK_SIZE:
   case GL_CLEAR_BUFFER:
   case GL_TEXTURE_VIEW:
   case GL_VIEW_COMPATIBILITY_CLASS:
      /* The ARB_internalformat_query spec says:
       *
       *     "If the <pname> parameter to GetInternalformativ is not SAMPLES
       *     or NUM_SAMPLE_COUNTS, then an INVALID_ENUM error is generated."
       */
      if (!query2) {
         _mesa_error(ctx, GL_INVALID_ENUM,
                     "glGetInternalformativ(pname=%s)",
                     _mesa_enum_to_string(pname));

         return false;
      }
      break;

   default:
      _mesa_error(ctx, GL_INVALID_ENUM,
                  "glGetInternalformativ(pname=%s)",
                  _mesa_enum_to_string(pname));
      return false;
   }

   /* The ARB_internalformat_query spec says:
    *
    *     "If the <bufSize> parameter to GetInternalformativ is negative, then
    *     an INVALID_VALUE error is generated."
    *
    * Nothing is said in ARB_internalformat_query2 but we assume the same.
    */
   if (bufSize < 0) {
      _mesa_error(ctx, GL_INVALID_VALUE,
                  "glGetInternalformativ(target=%s)",
                  _mesa_enum_to_string(target));
      return false;
   }

   /* The ARB_internalformat_query spec says:
    *
    *     "If the <internalformat> parameter to GetInternalformativ is not
    *     color-, depth- or stencil-renderable, then an INVALID_ENUM error is
    *     generated."
    */
   if (!query2 && !_is_renderable(ctx, internalformat)) {
      _mesa_error(ctx, GL_INVALID_ENUM,
                  "glGetInternalformativ(internalformat=%s)",
                  _mesa_enum_to_string(internalformat));
      return false;
   }

   return true;
}

/* Sets the appropriate "unsupported" response as defined by the
 * ARB_internalformat_query2 spec for each each <pname>.
 */
static void
_set_default_response(GLenum pname, GLint buffer[16])
{
   /* The ARB_internalformat_query2 defines which is the reponse best
    * representing "not supported" or "not applicable" for each <pname>.
    *
    *     " In general:
    *          - size- or count-based queries will return zero,
    *          - support-, format- or type-based queries will return NONE,
    *          - boolean-based queries will return FALSE, and
    *          - list-based queries return no entries."
    */
   switch(pname) {
   case GL_SAMPLES:
      break;

   case GL_MAX_COMBINED_DIMENSIONS:
      /* This value can be a 64-bit value. As the default is the 32-bit query,
       * we pack 2 32-bit integers. So we need to clean both */
      buffer[0] = 0;
      buffer[1] = 0;
      break;

   case GL_NUM_SAMPLE_COUNTS:
   case GL_INTERNALFORMAT_RED_SIZE:
   case GL_INTERNALFORMAT_GREEN_SIZE:
   case GL_INTERNALFORMAT_BLUE_SIZE:
   case GL_INTERNALFORMAT_ALPHA_SIZE:
   case GL_INTERNALFORMAT_DEPTH_SIZE:
   case GL_INTERNALFORMAT_STENCIL_SIZE:
   case GL_INTERNALFORMAT_SHARED_SIZE:
   case GL_MAX_WIDTH:
   case GL_MAX_HEIGHT:
   case GL_MAX_DEPTH:
   case GL_MAX_LAYERS:
   case GL_IMAGE_TEXEL_SIZE:
   case GL_TEXTURE_COMPRESSED_BLOCK_WIDTH:
   case GL_TEXTURE_COMPRESSED_BLOCK_HEIGHT:
   case GL_TEXTURE_COMPRESSED_BLOCK_SIZE:
      buffer[0] = 0;
      break;

   case GL_INTERNALFORMAT_PREFERRED:
   case GL_INTERNALFORMAT_RED_TYPE:
   case GL_INTERNALFORMAT_GREEN_TYPE:
   case GL_INTERNALFORMAT_BLUE_TYPE:
   case GL_INTERNALFORMAT_ALPHA_TYPE:
   case GL_INTERNALFORMAT_DEPTH_TYPE:
   case GL_INTERNALFORMAT_STENCIL_TYPE:
   case GL_FRAMEBUFFER_RENDERABLE:
   case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
   case GL_FRAMEBUFFER_BLEND:
   case GL_READ_PIXELS:
   case GL_READ_PIXELS_FORMAT:
   case GL_READ_PIXELS_TYPE:
   case GL_TEXTURE_IMAGE_FORMAT:
   case GL_TEXTURE_IMAGE_TYPE:
   case GL_GET_TEXTURE_IMAGE_FORMAT:
   case GL_GET_TEXTURE_IMAGE_TYPE:
   case GL_MANUAL_GENERATE_MIPMAP:
   case GL_AUTO_GENERATE_MIPMAP:
   case GL_COLOR_ENCODING:
   case GL_SRGB_READ:
   case GL_SRGB_WRITE:
   case GL_SRGB_DECODE_ARB:
   case GL_FILTER:
   case GL_VERTEX_TEXTURE:
   case GL_TESS_CONTROL_TEXTURE:
   case GL_TESS_EVALUATION_TEXTURE:
   case GL_GEOMETRY_TEXTURE:
   case GL_FRAGMENT_TEXTURE:
   case GL_COMPUTE_TEXTURE:
   case GL_TEXTURE_SHADOW:
   case GL_TEXTURE_GATHER:
   case GL_TEXTURE_GATHER_SHADOW:
   case GL_SHADER_IMAGE_LOAD:
   case GL_SHADER_IMAGE_STORE:
   case GL_SHADER_IMAGE_ATOMIC:
   case GL_IMAGE_COMPATIBILITY_CLASS:
   case GL_IMAGE_PIXEL_FORMAT:
   case GL_IMAGE_PIXEL_TYPE:
   case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
   case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST:
   case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST:
   case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE:
   case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE:
   case GL_CLEAR_BUFFER:
   case GL_TEXTURE_VIEW:
   case GL_VIEW_COMPATIBILITY_CLASS:
      buffer[0] = GL_NONE;
      break;

   case GL_INTERNALFORMAT_SUPPORTED:
   case GL_COLOR_COMPONENTS:
   case GL_DEPTH_COMPONENTS:
   case GL_STENCIL_COMPONENTS:
   case GL_COLOR_RENDERABLE:
   case GL_DEPTH_RENDERABLE:
   case GL_STENCIL_RENDERABLE:
   case GL_MIPMAP:
   case GL_TEXTURE_COMPRESSED:
      buffer[0] = GL_FALSE;
      break;

   default:
      unreachable("invalid 'pname'");
   }
}

static bool
_is_target_supported(struct gl_context *ctx, GLenum target)
{
   /* The ARB_internalformat_query2 spec says:
    *
    *     "if a particular type of <target> is not supported by the
    *     implementation the "unsupported" answer should be given.
    *     This is not an error."
    */
   switch(target){
   case GL_TEXTURE_2D:
   case GL_TEXTURE_3D:
      break;

   case GL_TEXTURE_1D:
      if (!_mesa_is_desktop_gl(ctx))
         return false;
      break;

   case GL_TEXTURE_1D_ARRAY:
      if (!_mesa_has_EXT_texture_array(ctx))
         return false;
      break;

   case GL_TEXTURE_2D_ARRAY:
      if (!(_mesa_has_EXT_texture_array(ctx) || _mesa_is_gles3(ctx)))
         return false;
      break;

   case GL_TEXTURE_CUBE_MAP:
      if (!_mesa_has_ARB_texture_cube_map(ctx))
         return false;
      break;

   case GL_TEXTURE_CUBE_MAP_ARRAY:
      if (!_mesa_has_ARB_texture_cube_map_array(ctx))
         return false;
      break;

   case GL_TEXTURE_RECTANGLE:
      if (!_mesa_has_NV_texture_rectangle(ctx))
          return false;
      break;

   case GL_TEXTURE_BUFFER:
      if (!_mesa_has_ARB_texture_buffer_object(ctx))
         return false;
      break;

   case GL_RENDERBUFFER:
      if (!(_mesa_has_ARB_framebuffer_object(ctx) ||
            _mesa_is_gles3(ctx)))
         return false;
      break;

   case GL_TEXTURE_2D_MULTISAMPLE:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
      if (!(_mesa_has_ARB_texture_multisample(ctx) ||
            _mesa_is_gles31(ctx)))
         return false;
      break;

   default:
      unreachable("invalid target");
   }

   return true;
}

static bool
_is_resource_supported(struct gl_context *ctx, GLenum target,
                       GLenum internalformat, GLenum pname)
{
   /* From the ARB_internalformat_query2 spec:
    *
    * In the following descriptions, the term /resource/ is used to generically
    * refer to an object of the appropriate type that has been created with
    * <internalformat> and <target>.  If the particular <target> and
    * <internalformat> combination do not make sense, ... the "unsupported"
    * answer should be given. This is not an error.
    */

   /* In the ARB_internalformat_query2 spec wording, some <pnames> do not care
    * about the /resource/ being supported or not, we return 'true' for those.
    */
   switch (pname) {
   case GL_INTERNALFORMAT_SUPPORTED:
   case GL_INTERNALFORMAT_PREFERRED:
   case GL_COLOR_COMPONENTS:
   case GL_DEPTH_COMPONENTS:
   case GL_STENCIL_COMPONENTS:
   case GL_COLOR_RENDERABLE:
   case GL_DEPTH_RENDERABLE:
   case GL_STENCIL_RENDERABLE:
      return true;
   default:
      break;
   }

   switch(target){
   case GL_TEXTURE_1D:
   case GL_TEXTURE_1D_ARRAY:
   case GL_TEXTURE_2D:
   case GL_TEXTURE_2D_ARRAY:
   case GL_TEXTURE_3D:
   case GL_TEXTURE_CUBE_MAP:
   case GL_TEXTURE_CUBE_MAP_ARRAY:
   case GL_TEXTURE_RECTANGLE:
      /* Based on what Mesa does for glTexImage1D/2D/3D and
       * glCompressedTexImage1D/2D/3D functions.
       */
      if (_mesa_base_tex_format(ctx, internalformat) < 0)
         return false;

      /* additional checks for depth textures */
      if (!_mesa_legal_texture_base_format_for_target(ctx, target, internalformat))
         return false;

      /* additional checks for compressed textures */
      if (_mesa_is_compressed_format(ctx, internalformat) &&
          (!_mesa_target_can_be_compressed(ctx, target, internalformat, NULL) ||
           _mesa_format_no_online_compression(ctx, internalformat)))
         return false;

      break;
   case GL_TEXTURE_2D_MULTISAMPLE:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
      /* Based on what Mesa does for glTexImage2D/3DMultisample,
       * glTexStorage2D/3DMultisample and
       * glTextureStorage2D/3DMultisample functions.
       */
      if (!_mesa_is_renderable_texture_format(ctx, internalformat))
         return false;

      break;
   case GL_TEXTURE_BUFFER:
      /* Based on what Mesa does for the glTexBuffer function. */
      if (_mesa_validate_texbuffer_format(ctx, internalformat) ==
          MESA_FORMAT_NONE)
         return false;

      break;
   case GL_RENDERBUFFER:
      /* Based on what Mesa does for glRenderbufferStorage(Multisample) and
       * glNamedRenderbufferStorage functions.
       */
      if (!_mesa_base_fbo_format(ctx, internalformat))
         return false;

      break;
   default:
      unreachable("bad target");
   }

   return true;
}

static bool
_is_internalformat_supported(struct gl_context *ctx, GLenum target,
                             GLenum internalformat)
{
   /* From the ARB_internalformat_query2 specification:
    *
    *     "- INTERNALFORMAT_SUPPORTED: If <internalformat> is an internal format
    *     that is supported by the implementation in at least some subset of
    *     possible operations, TRUE is written to <params>.  If <internalformat>
    *     if not a valid token for any internal format usage, FALSE is returned.
    *
    *     <internalformats> that must be supported (in GL 4.2 or later) include
    *      the following:
    *         - "sized internal formats" from Table 3.12, 3.13, and 3.15,
    *         - any specific "compressed internal format" from Table 3.14,
    *         - any "image unit format" from Table 3.21.
    *         - any generic "compressed internal format" from Table 3.14, if the
    *         implementation accepts it for any texture specification commands, and
    *         - unsized or base internal format, if the implementation accepts
    *         it for texture or image specification.
    */
   GLint buffer[1];

   /* At this point a internalformat is valid if it is valid as a texture or
    * as a renderbuffer format. The checks are different because those methods
    * return different values when passing non supported internalformats */
   if (_mesa_base_tex_format(ctx, internalformat) < 0 &&
       _mesa_base_fbo_format(ctx, internalformat) == 0)
      return false;

   /* Let the driver have the final word */
   ctx->Driver.QueryInternalFormat(ctx, target, internalformat,
                                   GL_INTERNALFORMAT_SUPPORTED, buffer);

   return (buffer[0] == GL_TRUE);
}

static bool
_legal_target_for_framebuffer_texture_layer(struct gl_context *ctx,
                                            GLenum target)
{
   switch (target) {
   case GL_TEXTURE_3D:
   case GL_TEXTURE_1D_ARRAY:
   case GL_TEXTURE_2D_ARRAY:
   case GL_TEXTURE_CUBE_MAP_ARRAY:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
   case GL_TEXTURE_CUBE_MAP:
      return true;
   default:
      return false;
   }
}

static GLenum
_mesa_generic_type_for_internal_format(GLenum internalFormat)
{
   if (_mesa_is_enum_format_unsigned_int(internalFormat))
      return GL_UNSIGNED_BYTE;
   else if (_mesa_is_enum_format_signed_int(internalFormat))
      return GL_BYTE;
   else
      return GL_FLOAT;
}

/* default implementation of QueryInternalFormat driverfunc, for
 * drivers not implementing ARB_internalformat_query2.
 */
void
_mesa_query_internal_format_default(struct gl_context *ctx, GLenum target,
                                    GLenum internalFormat, GLenum pname,
                                    GLint *params)
{
   (void) target;

   switch (pname) {
   case GL_SAMPLES:
   case GL_NUM_SAMPLE_COUNTS:
      params[0] = 1;
      break;

   case GL_INTERNALFORMAT_SUPPORTED:
      params[0] = GL_TRUE;
      break;

   case GL_INTERNALFORMAT_PREFERRED:
      params[0] = internalFormat;
      break;

   case GL_READ_PIXELS_FORMAT: {
      GLenum base_format = _mesa_base_tex_format(ctx, internalFormat);
      switch (base_format) {
      case GL_STENCIL_INDEX:
      case GL_DEPTH_COMPONENT:
      case GL_DEPTH_STENCIL:
      case GL_RED:
      case GL_RGB:
      case GL_BGR:
      case GL_RGBA:
      case GL_BGRA:
         params[0] = base_format;
         break;
      default:
         params[0] = GL_NONE;
         break;
      }
      break;
   }

   case GL_READ_PIXELS_TYPE:
   case GL_TEXTURE_IMAGE_TYPE:
   case GL_GET_TEXTURE_IMAGE_TYPE: {
      GLenum base_format = _mesa_base_tex_format(ctx, internalFormat);
      if (base_format > 0)
         params[0] = _mesa_generic_type_for_internal_format(internalFormat);
      else
         params[0] = GL_NONE;
      break;
   }

   case GL_TEXTURE_IMAGE_FORMAT:
   case GL_GET_TEXTURE_IMAGE_FORMAT: {
      GLenum format = GL_NONE;
      GLenum base_format = _mesa_base_tex_format(ctx, internalFormat);
      if (base_format > 0) {
         if (_mesa_is_enum_format_integer(internalFormat))
           format = _mesa_base_format_to_integer_format(base_format);
         else
           format = base_format;
      }

      params[0] = format;
      break;
   }

   case GL_MANUAL_GENERATE_MIPMAP:
   case GL_AUTO_GENERATE_MIPMAP:
   case GL_SRGB_READ:
   case GL_SRGB_WRITE:
   case GL_SRGB_DECODE_ARB:
   case GL_VERTEX_TEXTURE:
   case GL_TESS_CONTROL_TEXTURE:
   case GL_TESS_EVALUATION_TEXTURE:
   case GL_GEOMETRY_TEXTURE:
   case GL_FRAGMENT_TEXTURE:
   case GL_COMPUTE_TEXTURE:
   case GL_SHADER_IMAGE_LOAD:
   case GL_SHADER_IMAGE_STORE:
   case GL_SHADER_IMAGE_ATOMIC:
   case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_TEST:
   case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_TEST:
   case GL_SIMULTANEOUS_TEXTURE_AND_DEPTH_WRITE:
   case GL_SIMULTANEOUS_TEXTURE_AND_STENCIL_WRITE:
   case GL_CLEAR_BUFFER:
   case GL_TEXTURE_VIEW:
   case GL_TEXTURE_SHADOW:
   case GL_TEXTURE_GATHER:
   case GL_TEXTURE_GATHER_SHADOW:
   case GL_FRAMEBUFFER_RENDERABLE:
   case GL_FRAMEBUFFER_RENDERABLE_LAYERED:
   case GL_FRAMEBUFFER_BLEND:
   case GL_FILTER:
      params[0] = GL_FULL_SUPPORT;
      break;

   default:
      _set_default_response(pname, params);
      break;
   }
}

/*
 * For MAX_WIDTH/MAX_HEIGHT/MAX_DEPTH it returns the equivalent GetInteger
 * pname for a Getinternalformat pname/target combination. target/pname
 * combinations that would return 0 due dimension number or unsupported status
 * should be already filtered out
 *
 * Note that this means that the returned value would be independent of the
 * internalformat. This possibility is already mentioned at the Issue 7 of the
 * arb_internalformat_query2 spec.
 */
static GLenum
equivalentSizePname(GLenum target,
                    GLenum pname)
{
   switch (target) {
   case GL_TEXTURE_1D:
   case GL_TEXTURE_2D:
   case GL_TEXTURE_2D_MULTISAMPLE:
      return GL_MAX_TEXTURE_SIZE;
   case GL_TEXTURE_3D:
      return GL_MAX_3D_TEXTURE_SIZE;
   case GL_TEXTURE_CUBE_MAP:
      return GL_MAX_CUBE_MAP_TEXTURE_SIZE;
   case GL_TEXTURE_RECTANGLE:
      return GL_MAX_RECTANGLE_TEXTURE_SIZE;
   case GL_RENDERBUFFER:
      return GL_MAX_RENDERBUFFER_SIZE;
   case GL_TEXTURE_1D_ARRAY:
      if (pname == GL_MAX_HEIGHT)
         return GL_MAX_ARRAY_TEXTURE_LAYERS;
      else
         return GL_MAX_TEXTURE_SIZE;
   case GL_TEXTURE_2D_ARRAY:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
      if (pname == GL_MAX_DEPTH)
         return GL_MAX_ARRAY_TEXTURE_LAYERS;
      else
         return GL_MAX_TEXTURE_SIZE;
   case GL_TEXTURE_CUBE_MAP_ARRAY:
      if (pname == GL_MAX_DEPTH)
         return GL_MAX_ARRAY_TEXTURE_LAYERS;
      else
         return GL_MAX_CUBE_MAP_TEXTURE_SIZE;
   case GL_TEXTURE_BUFFER:
      return GL_MAX_TEXTURE_BUFFER_SIZE;
   default:
      return 0;
   }
}

/*
 * Returns the dimensions associated to a target. GL_TEXTURE_BUFFER and
 * GL_RENDERBUFFER have associated a dimension, but they are not textures
 * per-se, so we can't just call _mesa_get_texture_dimension directly.
 */
static GLint
get_target_dimensions(GLenum target)
{
   switch(target) {
   case GL_TEXTURE_BUFFER:
      return 1;
   case GL_RENDERBUFFER:
      return 2;
   default:
      return _mesa_get_texture_dimensions(target);
   }
}

/*
 * Returns the minimum amount of dimensions associated to a pname. So for
 * example, if querying GL_MAX_HEIGHT, it is assumed that your target would
 * have as minimum 2 dimensions.
 *
 * Useful to handle sentences like this from query2 spec:
 *
 * "MAX_HEIGHT:
 *  <skip>
 *  If the resource does not have at least two dimensions
 *  <skip>."
 */
static GLint
get_min_dimensions(GLenum pname)
{
   switch(pname) {
   case GL_MAX_WIDTH:
      return 1;
   case GL_MAX_HEIGHT:
      return 2;
   case GL_MAX_DEPTH:
      return 3;
   default:
      return 0;
   }
}

/*
 * Similar to teximage.c:check_multisample_target, but independent of the
 * dimensions.
 */
static bool
is_multisample_target(GLenum target)
{
   switch(target) {
   case GL_TEXTURE_2D_MULTISAMPLE:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
      return true;
   default:
      return false;
   }

}

void GLAPIENTRY
_mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
                          GLsizei bufSize, GLint *params)
{
   GLint buffer[16];
   GET_CURRENT_CONTEXT(ctx);

   ASSERT_OUTSIDE_BEGIN_END(ctx);

   /* ARB_internalformat_query is also mandatory for ARB_internalformat_query2 */
   if (!(_mesa_has_ARB_internalformat_query(ctx) ||
         _mesa_is_gles3(ctx))) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "glGetInternalformativ");
      return;
   }

   assert(ctx->Driver.QueryInternalFormat != NULL);

   if (!_legal_parameters(ctx, target, internalformat, pname, bufSize, params))
      return;

   /* initialize the contents of the temporary buffer */
   memcpy(buffer, params, MIN2(bufSize, 16) * sizeof(GLint));

   /* Use the 'unsupported' response defined by the spec for every pname
    * as the default answer.
    */
   _set_default_response(pname, buffer);

   if (!_is_target_supported(ctx, target) ||
       !_is_internalformat_supported(ctx, target, internalformat) ||
       !_is_resource_supported(ctx, target, internalformat, pname))
      goto end;

   switch (pname) {
   case GL_SAMPLES:
      /* fall-through */
   case GL_NUM_SAMPLE_COUNTS:
      /* The ARB_internalformat_query2 sets the response as 'unsupported' for
       * SAMPLES and NUM_SAMPLE_COUNTS:
       *
       *     "If <internalformat> is not color-renderable, depth-renderable, or
       *     stencil-renderable (as defined in section 4.4.4), or if <target>
       *     does not support multiple samples (ie other than
       *     TEXTURE_2D_MULTISAMPLE,  TEXTURE_2D_MULTISAMPLE_ARRAY,
       *     or RENDERBUFFER)."
       */
      if ((target != GL_RENDERBUFFER &&
           target != GL_TEXTURE_2D_MULTISAMPLE &&
           target != GL_TEXTURE_2D_MULTISAMPLE_ARRAY) ||
          !_is_renderable(ctx, internalformat))
         goto end;

      /* The GL ES 3.0 specification, section 6.1.15 page 236 says:
       *
       *     "Since multisampling is not supported for signed and unsigned
       *     integer internal formats, the value of NUM_SAMPLE_COUNTS will be


context:
space:
mode: