src/mesa/main/texparam.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   5  * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  22  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  23  * OTHER DEALINGS IN THE SOFTWARE.
  24  */
  25
  26 /**
  27  * \file texparam.c
  28  *
  29  * glTexParameter-related functions
  30  */
  31
  32 #include <stdbool.h>
  33 #include "main/glheader.h"
  34 #include "main/blend.h"
  35 #include "main/context.h"
  36 #include "main/enums.h"
  37 #include "main/formats.h"
  38 #include "main/glformats.h"
  39 #include "main/macros.h"
  40 #include "main/mtypes.h"
  41 #include "main/state.h"
  42 #include "main/texcompress.h"
  43 #include "main/texobj.h"
  44 #include "main/texparam.h"
  45 #include "main/teximage.h"
  46 #include "main/texstate.h"
  47 #include "program/prog_instruction.h"
  48
  49
  50 /**
  51  * Check if a coordinate wrap mode is supported for the texture target.
  52  * \return GL_TRUE if legal, GL_FALSE otherwise
  53  */
  54 static GLboolean
  55 validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap)
  56 {
  57    const struct gl_extensions * const e = & ctx->Extensions;
  58    const bool is_desktop_gl = _mesa_is_desktop_gl(ctx);
  59    bool supported;
  60
  61    switch (wrap) {
  62    case GL_CLAMP:
  63       /* GL_CLAMP was removed in the core profile, and it has never existed in
  64        * OpenGL ES.
  65        */
  66       supported = (ctx->API == API_OPENGL_COMPAT)
  67          && (target != GL_TEXTURE_EXTERNAL_OES);
  68       break;
  69
  70    case GL_CLAMP_TO_EDGE:
  71       supported = true;
  72       break;
  73
  74    case GL_CLAMP_TO_BORDER:
  75       supported = ctx->API != API_OPENGLES && e->ARB_texture_border_clamp
  76          && (target != GL_TEXTURE_EXTERNAL_OES);
  77       break;
  78
  79    case GL_REPEAT:
  80    case GL_MIRRORED_REPEAT:
  81       supported = (target != GL_TEXTURE_RECTANGLE_NV)
  82          && (target != GL_TEXTURE_EXTERNAL_OES);
  83       break;
  84
  85    case GL_MIRROR_CLAMP_EXT:
  86       supported = is_desktop_gl
  87          && (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)
  88          && (target != GL_TEXTURE_RECTANGLE_NV)
  89          && (target != GL_TEXTURE_EXTERNAL_OES);
  90       break;
  91
  92    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
  93       supported = is_desktop_gl
  94          && (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp || e->ARB_texture_mirror_clamp_to_edge)
  95          && (target != GL_TEXTURE_RECTANGLE_NV)
  96          && (target != GL_TEXTURE_EXTERNAL_OES);
  97       break;
  98
  99    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 100       supported = is_desktop_gl && e->EXT_texture_mirror_clamp
 101          && (target != GL_TEXTURE_RECTANGLE_NV)
 102          && (target != GL_TEXTURE_EXTERNAL_OES);
 103       break;
 104
 105    default:
 106       supported = false;
 107       break;
 108    }
 109
 110    if (!supported)
 111       _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap );
 112
 113    return supported;
 114 }
 115
 116
 117 /**
 118  * Get current texture object for given target.
 119  * Return NULL if any error (and record the error).
 120  * Note that this is different from _mesa_get_current_tex_object() in that
 121  * proxy targets are not accepted.
 122  * Only the glGetTexLevelParameter() functions accept proxy targets.
 123  */
 124 static struct gl_texture_object *
 125 get_texobj_by_target(struct gl_context *ctx, GLenum target, GLboolean get)
 126 {
 127    struct gl_texture_unit *texUnit;
 128    int targetIndex;
 129
 130    if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
 131       _mesa_error(ctx, GL_INVALID_OPERATION,
 132                   "gl%sTexParameter(current unit)", get ? "Get" : "");
 133       return NULL;
 134    }
 135
 136    texUnit = _mesa_get_current_tex_unit(ctx);
 137
 138    targetIndex = _mesa_tex_target_to_index(ctx, target);
 139    if (targetIndex < 0 || targetIndex == TEXTURE_BUFFER_INDEX) {
 140       _mesa_error(ctx, GL_INVALID_ENUM,
 141                   "gl%sTexParameter(target)", get ? "Get" : "");
 142       return NULL;
 143    }
 144    assert(targetIndex < NUM_TEXTURE_TARGETS);
 145
 146    return texUnit->CurrentTex[targetIndex];
 147 }
 148
 149 /**
 150  * Get current texture object for given name.
 151  * Return NULL if any error (and record the error).
 152  * Note that proxy targets are not accepted.
 153  * Only the glGetTexLevelParameter() functions accept proxy targets.
 154  */
 155 static struct gl_texture_object *
 156 get_texobj_by_name(struct gl_context *ctx, GLuint texture, GLboolean get)
 157 {
 158    struct gl_texture_object *texObj;
 159
 160    texObj = _mesa_lookup_texture(ctx, texture);
 161    if (!texObj) {
 162       /*
 163        * User passed a non-generated name.
 164        * Throw the error in the caller.
 165        */
 166       return NULL;
 167    }
 168
 169    switch (texObj->Target) {
 170    case GL_TEXTURE_1D:
 171    case GL_TEXTURE_1D_ARRAY:
 172    case GL_TEXTURE_2D:
 173    case GL_TEXTURE_2D_ARRAY:
 174    case GL_TEXTURE_2D_MULTISAMPLE:
 175    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
 176    case GL_TEXTURE_3D:
 177    case GL_TEXTURE_CUBE_MAP:
 178    case GL_TEXTURE_CUBE_MAP_ARRAY:
 179    case GL_TEXTURE_RECTANGLE:
 180       return texObj;
 181    default:
 182       _mesa_error(ctx, GL_INVALID_ENUM,
 183                   "gl%sTextureParameter(target)", get ? "Get" : "");
 184       return NULL;
 185    }
 186
 187 }
 188
 189
 190 /**
 191  * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
 192  * \return -1 if error.
 193  */
 194 static GLint
 195 comp_to_swizzle(GLenum comp)
 196 {
 197    switch (comp) {
 198    case GL_RED:
 199       return SWIZZLE_X;
 200    case GL_GREEN:
 201       return SWIZZLE_Y;
 202    case GL_BLUE:
 203       return SWIZZLE_Z;
 204    case GL_ALPHA:
 205       return SWIZZLE_W;
 206    case GL_ZERO:
 207       return SWIZZLE_ZERO;
 208    case GL_ONE:
 209       return SWIZZLE_ONE;
 210    default:
 211       return -1;
 212    }
 213 }
 214
 215
 216 static void
 217 set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
 218 {
 219    assert(comp < 4);
 220    assert(swz <= SWIZZLE_NIL);
 221    {
 222       GLuint mask = 0x7 << (3 * comp);
 223       GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));
 224       *swizzle = s;
 225    }
 226 }
 227
 228
 229 /**
 230  * This is called just prior to changing any texture object state which
 231  * will not affect texture completeness.
 232  */
 233 static inline void
 234 flush(struct gl_context *ctx)
 235 {
 236    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
 237 }
 238
 239
 240 /**
 241  * This is called just prior to changing any texture object state which
 242  * could affect texture completeness (texture base level, max level).
 243  * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
 244  * state flag and then mark the texture object as 'incomplete' so that any
 245  * per-texture derived state gets recomputed.
 246  */
 247 static inline void
 248 incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
 249 {
 250    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
 251    _mesa_dirty_texobj(ctx, texObj);
 252 }
 253
 254
 255 GLboolean
 256 _mesa_target_allows_setting_sampler_parameters(GLenum target)
 257 {
 258    switch (target) {
 259    case GL_TEXTURE_2D_MULTISAMPLE:
 260    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
 261       return GL_FALSE;
 262
 263    default:
 264       return GL_TRUE;
 265    }
 266 }
 267
 268
 269 /**
 270  * Set an integer-valued texture parameter
 271  * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
 272  */
 273 static GLboolean
 274 set_tex_parameteri(struct gl_context *ctx,
 275                    struct gl_texture_object *texObj,
 276                    GLenum pname, const GLint *params, bool dsa)
 277 {
 278    const char *suffix = dsa ? "ture" : "";
 279
 280    switch (pname) {
 281    case GL_TEXTURE_MIN_FILTER:
 282       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 283          goto invalid_enum;
 284
 285       if (texObj->Sampler.MinFilter == params[0])
 286          return GL_FALSE;
 287       switch (params[0]) {
 288       case GL_NEAREST:
 289       case GL_LINEAR:
 290          flush(ctx);
 291          texObj->Sampler.MinFilter = params[0];
 292          return GL_TRUE;
 293       case GL_NEAREST_MIPMAP_NEAREST:
 294       case GL_LINEAR_MIPMAP_NEAREST:
 295       case GL_NEAREST_MIPMAP_LINEAR:
 296       case GL_LINEAR_MIPMAP_LINEAR:
 297          if (texObj->Target != GL_TEXTURE_RECTANGLE_NV &&
 298              texObj->Target != GL_TEXTURE_EXTERNAL_OES) {
 299             flush(ctx);
 300             texObj->Sampler.MinFilter = params[0];
 301             return GL_TRUE;
 302          }
 303          /* fall-through */
 304       default:
 305          goto invalid_param;
 306       }
 307       return GL_FALSE;
 308
 309    case GL_TEXTURE_MAG_FILTER:
 310       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 311          goto invalid_enum;
 312
 313       if (texObj->Sampler.MagFilter == params[0])
 314          return GL_FALSE;
 315       switch (params[0]) {
 316       case GL_NEAREST:
 317       case GL_LINEAR:
 318          flush(ctx); /* does not effect completeness */
 319          texObj->Sampler.MagFilter = params[0];
 320          return GL_TRUE;
 321       default:
 322          goto invalid_param;
 323       }
 324       return GL_FALSE;
 325
 326    case GL_TEXTURE_WRAP_S:
 327       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 328          goto invalid_enum;
 329
 330       if (texObj->Sampler.WrapS == params[0])
 331          return GL_FALSE;
 332       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 333          flush(ctx);
 334          texObj->Sampler.WrapS = params[0];
 335          return GL_TRUE;
 336       }
 337       return GL_FALSE;
 338
 339    case GL_TEXTURE_WRAP_T:
 340       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 341          goto invalid_enum;
 342
 343       if (texObj->Sampler.WrapT == params[0])
 344          return GL_FALSE;
 345       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 346          flush(ctx);
 347          texObj->Sampler.WrapT = params[0];
 348          return GL_TRUE;
 349       }
 350       return GL_FALSE;
 351
 352    case GL_TEXTURE_WRAP_R:
 353       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 354          goto invalid_enum;
 355
 356       if (texObj->Sampler.WrapR == params[0])
 357          return GL_FALSE;
 358       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 359          flush(ctx);
 360          texObj->Sampler.WrapR = params[0];
 361          return GL_TRUE;
 362       }
 363       return GL_FALSE;
 364
 365    case GL_TEXTURE_BASE_LEVEL:
 366       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 367          goto invalid_pname;
 368
 369       if (texObj->BaseLevel == params[0])
 370          return GL_FALSE;
 371
 372       if ((texObj->Target == GL_TEXTURE_2D_MULTISAMPLE ||
 373            texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) && params[0] != 0)
 374          goto invalid_operation;
 375
 376       if (params[0] < 0) {
 377          _mesa_error(ctx, GL_INVALID_VALUE,
 378                      "glTex%sParameter(param=%d)", suffix, params[0]);
 379          return GL_FALSE;
 380       }
 381       if (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0) {
 382          _mesa_error(ctx, GL_INVALID_OPERATION,
 383                      "glTex%sParameter(target=%s, param=%d)", suffix,
 384                      _mesa_enum_to_string(texObj->Target), params[0]);
 385          return GL_FALSE;
 386       }
 387       incomplete(ctx, texObj);
 388
 389       /** See note about ARB_texture_storage below */
 390       if (texObj->Immutable)
 391          texObj->BaseLevel = MIN2(texObj->ImmutableLevels - 1, params[0]);
 392       else
 393          texObj->BaseLevel = params[0];
 394
 395       return GL_TRUE;
 396
 397    case GL_TEXTURE_MAX_LEVEL:
 398       if (texObj->MaxLevel == params[0])
 399          return GL_FALSE;
 400
 401       if (params[0] < 0 ||
 402           (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] > 0)) {
 403          _mesa_error(ctx, GL_INVALID_VALUE,
 404                      "glTex%sParameter(param=%d)", suffix,
 405                      params[0]);
 406          return GL_FALSE;
 407       }
 408       incomplete(ctx, texObj);
 409
 410       /** From ARB_texture_storage:
 411        * However, if TEXTURE_IMMUTABLE_FORMAT is TRUE, then level_base is
 412        * clamped to the range [0, <levels> - 1] and level_max is then clamped to
 413        * the range [level_base, <levels> - 1], where <levels> is the parameter
 414        * passed the call to TexStorage* for the texture object.
 415        */
 416       if (texObj->Immutable)
 417           texObj->MaxLevel = CLAMP(params[0], texObj->BaseLevel,
 418                                    texObj->ImmutableLevels - 1);
 419       else
 420          texObj->MaxLevel = params[0];
 421
 422       return GL_TRUE;
 423
 424    case GL_GENERATE_MIPMAP_SGIS:
 425       if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
 426          goto invalid_pname;
 427
 428       if (params[0] && texObj->Target == GL_TEXTURE_EXTERNAL_OES)
 429          goto invalid_param;
 430       if (texObj->GenerateMipmap != params[0]) {
 431          /* no flush() */
 432          texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
 433          return GL_TRUE;
 434       }
 435       return GL_FALSE;
 436
 437    case GL_TEXTURE_COMPARE_MODE_ARB:
 438       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
 439           || _mesa_is_gles3(ctx)) {
 440
 441          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 442             goto invalid_enum;
 443
 444          if (texObj->Sampler.CompareMode == params[0])
 445             return GL_FALSE;
 446          if (params[0] == GL_NONE ||
 447              params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) {
 448             flush(ctx);
 449             texObj->Sampler.CompareMode = params[0];
 450             return GL_TRUE;
 451          }
 452          goto invalid_param;
 453       }
 454       goto invalid_pname;
 455
 456    case GL_TEXTURE_COMPARE_FUNC_ARB:
 457       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
 458           || _mesa_is_gles3(ctx)) {
 459
 460          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 461             goto invalid_enum;
 462
 463          if (texObj->Sampler.CompareFunc == params[0])
 464             return GL_FALSE;
 465          switch (params[0]) {
 466          case GL_LEQUAL:
 467          case GL_GEQUAL:
 468          case GL_EQUAL:
 469          case GL_NOTEQUAL:
 470          case GL_LESS:
 471          case GL_GREATER:
 472          case GL_ALWAYS:
 473          case GL_NEVER:
 474             flush(ctx);
 475             texObj->Sampler.CompareFunc = params[0];
 476             return GL_TRUE;
 477          default:
 478             goto invalid_param;
 479          }
 480       }
 481       goto invalid_pname;
 482
 483    case GL_DEPTH_TEXTURE_MODE_ARB:
 484       /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has never
 485        * existed in OpenGL ES.
 486        */
 487       if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_texture) {
 488          if (texObj->DepthMode == params[0])
 489             return GL_FALSE;
 490          if (params[0] == GL_LUMINANCE ||
 491              params[0] == GL_INTENSITY ||
 492              params[0] == GL_ALPHA ||
 493              (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) {
 494             flush(ctx);
 495             texObj->DepthMode = params[0];
 496             return GL_TRUE;
 497          }
 498          goto invalid_param;
 499       }
 500       goto invalid_pname;
 501
 502    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 503       if (_mesa_has_ARB_stencil_texturing(ctx) || _mesa_is_gles31(ctx)) {
 504          bool stencil = params[0] == GL_STENCIL_INDEX;
 505          if (!stencil && params[0] != GL_DEPTH_COMPONENT)
 506             goto invalid_param;
 507
 508          if (texObj->StencilSampling == stencil)
 509             return GL_FALSE;
 510
 511          texObj->StencilSampling = stencil;
 512          return GL_TRUE;
 513       }
 514       goto invalid_pname;
 515
 516    case GL_TEXTURE_CROP_RECT_OES:
 517       if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
 518          goto invalid_pname;
 519
 520       texObj->CropRect[0] = params[0];
 521       texObj->CropRect[1] = params[1];
 522       texObj->CropRect[2] = params[2];
 523       texObj->CropRect[3] = params[3];
 524       return GL_TRUE;
 525
 526    case GL_TEXTURE_SWIZZLE_R_EXT:
 527    case GL_TEXTURE_SWIZZLE_G_EXT:
 528    case GL_TEXTURE_SWIZZLE_B_EXT:
 529    case GL_TEXTURE_SWIZZLE_A_EXT:
 530       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
 531           || _mesa_is_gles3(ctx)) {
 532          const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
 533          const GLint swz = comp_to_swizzle(params[0]);
 534          if (swz < 0) {
 535             _mesa_error(ctx, GL_INVALID_ENUM,
 536                         "glTex%sParameter(swizzle 0x%x)", suffix, params[0]);
 537             return GL_FALSE;
 538          }
 539          assert(comp < 4);
 540
 541          flush(ctx);
 542          texObj->Swizzle[comp] = params[0];
 543          set_swizzle_component(&texObj->_Swizzle, comp, swz);
 544          return GL_TRUE;
 545       }
 546       goto invalid_pname;
 547
 548    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
 549       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
 550           || _mesa_is_gles3(ctx)) {
 551          GLuint comp;
 552          flush(ctx);
 553          for (comp = 0; comp < 4; comp++) {
 554             const GLint swz = comp_to_swizzle(params[comp]);
 555             if (swz >= 0) {
 556                texObj->Swizzle[comp] = params[comp];
 557                set_swizzle_component(&texObj->_Swizzle, comp, swz);
 558             }
 559             else {
 560                _mesa_error(ctx, GL_INVALID_ENUM,
 561                            "glTex%sParameter(swizzle 0x%x)",
 562                            suffix, params[comp]);
 563                return GL_FALSE;
 564             }
 565          }
 566          return GL_TRUE;
 567       }
 568       goto invalid_pname;
 569
 570    case GL_TEXTURE_SRGB_DECODE_EXT:
 571       if (ctx->Extensions.EXT_texture_sRGB_decode) {
 572          GLenum decode = params[0];
 573
 574          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 575             goto invalid_enum;
 576
 577          if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
 578             if (texObj->Sampler.sRGBDecode != decode) {
 579                flush(ctx);
 580                texObj->Sampler.sRGBDecode = decode;
 581             }
 582             return GL_TRUE;
 583          }
 584       }
 585       goto invalid_pname;
 586
 587    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 588       if (_mesa_is_desktop_gl(ctx)
 589           && ctx->Extensions.AMD_seamless_cubemap_per_texture) {
 590          GLenum param = params[0];
 591
 592          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 593             goto invalid_enum;
 594
 595          if (param != GL_TRUE && param != GL_FALSE) {
 596             goto invalid_param;
 597          }
 598          if (param != texObj->Sampler.CubeMapSeamless) {
 599             flush(ctx);
 600             texObj->Sampler.CubeMapSeamless = param;
 601          }
 602          return GL_TRUE;
 603       }
 604       goto invalid_pname;
 605
 606    default:
 607       goto invalid_pname;
 608    }
 609
 610 invalid_pname:
 611    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 612                suffix, _mesa_enum_to_string(pname));
 613    return GL_FALSE;
 614
 615 invalid_param:
 616    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(param=%s)",
 617                suffix, _mesa_enum_to_string(params[0]));
 618    return GL_FALSE;
 619
 620 invalid_operation:
 621    _mesa_error(ctx, GL_INVALID_OPERATION, "glTex%sParameter(pname=%s)",
 622                suffix, _mesa_enum_to_string(pname));
 623    return GL_FALSE;
 624
 625 invalid_enum:
 626    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 627                suffix, _mesa_enum_to_string(pname));
 628    return GL_FALSE;
 629 }
 630
 631
 632 /**
 633  * Set a float-valued texture parameter
 634  * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
 635  */
 636 static GLboolean
 637 set_tex_parameterf(struct gl_context *ctx,
 638                    struct gl_texture_object *texObj,
 639                    GLenum pname, const GLfloat *params, bool dsa)
 640 {
 641    const char *suffix = dsa ? "ture" : "";
 642
 643    switch (pname) {
 644    case GL_TEXTURE_MIN_LOD:
 645       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 646          goto invalid_pname;
 647
 648       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 649          goto invalid_enum;
 650
 651       if (texObj->Sampler.MinLod == params[0])
 652          return GL_FALSE;
 653       flush(ctx);
 654       texObj->Sampler.MinLod = params[0];
 655       return GL_TRUE;
 656
 657    case GL_TEXTURE_MAX_LOD:
 658       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 659          goto invalid_pname;
 660
 661       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 662          goto invalid_enum;
 663
 664       if (texObj->Sampler.MaxLod == params[0])
 665          return GL_FALSE;
 666       flush(ctx);
 667       texObj->Sampler.MaxLod = params[0];
 668       return GL_TRUE;
 669
 670    case GL_TEXTURE_PRIORITY:
 671       if (ctx->API != API_OPENGL_COMPAT)
 672          goto invalid_pname;
 673
 674       flush(ctx);
 675       texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
 676       return GL_TRUE;
 677
 678    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 679       if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 680          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 681             goto invalid_enum;
 682
 683          if (texObj->Sampler.MaxAnisotropy == params[0])
 684             return GL_FALSE;
 685          if (params[0] < 1.0F) {
 686             _mesa_error(ctx, GL_INVALID_VALUE, "glTex%sParameter(param)",
 687                         suffix);
 688             return GL_FALSE;
 689          }
 690          flush(ctx);
 691          /* clamp to max, that's what NVIDIA does */
 692          texObj->Sampler.MaxAnisotropy = MIN2(params[0],
 693                                       ctx->Const.MaxTextureMaxAnisotropy);
 694          return GL_TRUE;
 695       }
 696       else {
 697          static GLuint count = 0;
 698          if (count++ < 10)
 699             goto invalid_pname;
 700       }
 701       return GL_FALSE;
 702
 703    case GL_TEXTURE_LOD_BIAS:
 704       /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias. */
 705       if (_mesa_is_gles(ctx))
 706          goto invalid_pname;
 707
 708       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 709          goto invalid_enum;
 710
 711       if (texObj->Sampler.LodBias != params[0]) {
 712          flush(ctx);
 713          texObj->Sampler.LodBias = params[0];
 714          return GL_TRUE;
 715       }
 716       break;
 717
 718    case GL_TEXTURE_BORDER_COLOR:
 719       if (ctx->API == API_OPENGLES ||
 720           !ctx->Extensions.ARB_texture_border_clamp)
 721          goto invalid_pname;
 722
 723       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 724          goto invalid_enum;
 725
 726       flush(ctx);
 727       /* ARB_texture_float disables clamping */
 728       if (ctx->Extensions.ARB_texture_float) {
 729          texObj->Sampler.BorderColor.f[RCOMP] = params[0];
 730          texObj->Sampler.BorderColor.f[GCOMP] = params[1];
 731          texObj->Sampler.BorderColor.f[BCOMP] = params[2];
 732          texObj->Sampler.BorderColor.f[ACOMP] = params[3];
 733       } else {
 734          texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F);
 735          texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F);
 736          texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F);
 737          texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F);
 738       }
 739       return GL_TRUE;
 740
 741    default:
 742       goto invalid_pname;
 743    }
 744    return GL_FALSE;
 745
 746 invalid_pname:
 747    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 748                suffix, _mesa_enum_to_string(pname));
 749    return GL_FALSE;
 750
 751 invalid_enum:
 752    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 753                suffix, _mesa_enum_to_string(pname));
 754    return GL_FALSE;
 755 }
 756
 757
 758 void
 759 _mesa_texture_parameterf(struct gl_context *ctx,
 760                          struct gl_texture_object *texObj,
 761                          GLenum pname, GLfloat param, bool dsa)
 762 {
 763    GLboolean need_update;
 764
 765    switch (pname) {
 766    case GL_TEXTURE_MIN_FILTER:
 767    case GL_TEXTURE_MAG_FILTER:
 768    case GL_TEXTURE_WRAP_S:
 769    case GL_TEXTURE_WRAP_T:
 770    case GL_TEXTURE_WRAP_R:
 771    case GL_TEXTURE_BASE_LEVEL:
 772    case GL_TEXTURE_MAX_LEVEL:
 773    case GL_GENERATE_MIPMAP_SGIS:
 774    case GL_TEXTURE_COMPARE_MODE_ARB:
 775    case GL_TEXTURE_COMPARE_FUNC_ARB:
 776    case GL_DEPTH_TEXTURE_MODE_ARB:
 777    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 778    case GL_TEXTURE_SRGB_DECODE_EXT:
 779    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 780    case GL_TEXTURE_SWIZZLE_R_EXT:
 781    case GL_TEXTURE_SWIZZLE_G_EXT:
 782    case GL_TEXTURE_SWIZZLE_B_EXT:
 783    case GL_TEXTURE_SWIZZLE_A_EXT:
 784       {
 785          GLint p[4];
 786          p[0] = (param > 0) ?
 787                 ((param > INT_MAX) ? INT_MAX : (GLint) (param + 0.5)) :
 788                 ((param < INT_MIN) ? INT_MIN : (GLint) (param - 0.5));
 789
 790          p[1] = p[2] = p[3] = 0;
 791          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 792       }
 793       break;
 794    case GL_TEXTURE_BORDER_COLOR:
 795    case GL_TEXTURE_SWIZZLE_RGBA:
 796       _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameterf(non-scalar pname)",
 797                   dsa ? "ture" : "");
 798       return;
 799    default:
 800       {
 801          /* this will generate an error if pname is illegal */
 802          GLfloat p[4];
 803          p[0] = param;
 804          p[1] = p[2] = p[3] = 0.0F;
 805          need_update = set_tex_parameterf(ctx, texObj, pname, p, dsa);
 806       }
 807    }
 808
 809    if (ctx->Driver.TexParameter && need_update) {
 810       ctx->Driver.TexParameter(ctx, texObj, pname, &param);
 811    }
 812 }
 813
 814
 815 void
 816 _mesa_texture_parameterfv(struct gl_context *ctx,
 817                           struct gl_texture_object *texObj,
 818                           GLenum pname, const GLfloat *params, bool dsa)
 819 {
 820    GLboolean need_update;
 821    switch (pname) {
 822    case GL_TEXTURE_MIN_FILTER:
 823    case GL_TEXTURE_MAG_FILTER:
 824    case GL_TEXTURE_WRAP_S:
 825    case GL_TEXTURE_WRAP_T:
 826    case GL_TEXTURE_WRAP_R:
 827    case GL_TEXTURE_BASE_LEVEL:
 828    case GL_TEXTURE_MAX_LEVEL:
 829    case GL_GENERATE_MIPMAP_SGIS:
 830    case GL_TEXTURE_COMPARE_MODE_ARB:
 831    case GL_TEXTURE_COMPARE_FUNC_ARB:
 832    case GL_DEPTH_TEXTURE_MODE_ARB:
 833    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 834    case GL_TEXTURE_SRGB_DECODE_EXT:
 835    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 836       {
 837          /* convert float param to int */
 838          GLint p[4];
 839          p[0] = (GLint) params[0];
 840          p[1] = p[2] = p[3] = 0;
 841          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 842       }
 843       break;
 844    case GL_TEXTURE_CROP_RECT_OES:
 845       {
 846          /* convert float params to int */
 847          GLint iparams[4];
 848          iparams[0] = (GLint) params[0];
 849          iparams[1] = (GLint) params[1];
 850          iparams[2] = (GLint) params[2];
 851          iparams[3] = (GLint) params[3];
 852          need_update = set_tex_parameteri(ctx, texObj, pname, iparams, dsa);
 853       }
 854       break;
 855    case GL_TEXTURE_SWIZZLE_R_EXT:
 856    case GL_TEXTURE_SWIZZLE_G_EXT:
 857    case GL_TEXTURE_SWIZZLE_B_EXT:
 858    case GL_TEXTURE_SWIZZLE_A_EXT:
 859    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
 860       {
 861          GLint p[4] = {0, 0, 0, 0};
 862          p[0] = (GLint) params[0];
 863          if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT) {
 864             p[1] = (GLint) params[1];
 865             p[2] = (GLint) params[2];
 866             p[3] = (GLint) params[3];
 867          }
 868          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 869       }
 870       break;
 871    default:
 872       /* this will generate an error if pname is illegal */
 873       need_update = set_tex_parameterf(ctx, texObj, pname, params, dsa);
 874    }
 875
 876    if (ctx->Driver.TexParameter && need_update) {
 877       ctx->Driver.TexParameter(ctx, texObj, pname, params);
 878    }
 879 }
 880
 881
 882 void
 883 _mesa_texture_parameteri(struct gl_context *ctx,
 884                          struct gl_texture_object *texObj,
 885                          GLenum pname, GLint param, bool dsa)
 886 {
 887    GLboolean need_update;
 888    switch (pname) {
 889    case GL_TEXTURE_MIN_LOD:
 890    case GL_TEXTURE_MAX_LOD:
 891    case GL_TEXTURE_PRIORITY:
 892    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 893    case GL_TEXTURE_LOD_BIAS:
 894    case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
 895       {
 896          GLfloat fparam[4];
 897          fparam[0] = (GLfloat) param;
 898          fparam[1] = fparam[2] = fparam[3] = 0.0F;
 899          /* convert int param to float */
 900          need_update = set_tex_parameterf(ctx, texObj, pname, fparam, dsa);
 901       }
 902       break;
 903    case GL_TEXTURE_BORDER_COLOR:
 904    case GL_TEXTURE_SWIZZLE_RGBA:
 905       {
 906          _mesa_error(ctx, GL_INVALID_ENUM,
 907                      "glTex%sParameteri(non-scalar pname)",
 908                      dsa ? "ture" : "");
 909          return;
 910       }
 911    default:
 912       /* this will generate an error if pname is illegal */
 913       {
 914          GLint iparam[4];
 915          iparam[0] = param;
 916          iparam[1] = iparam[2] = iparam[3] = 0;
 917          need_update = set_tex_parameteri(ctx, texObj, pname, iparam, dsa);
 918       }
 919    }
 920
 921    if (ctx->Driver.TexParameter && need_update) {
 922       GLfloat fparam = (GLfloat) param;
 923       ctx->Driver.TexParameter(ctx, texObj, pname, &fparam);
 924    }
 925 }
 926
 927
 928 void
 929 _mesa_texture_parameteriv(struct gl_context *ctx,
 930                           struct gl_texture_object *texObj,
 931                           GLenum pname, const GLint *params, bool dsa)
 932 {
 933    GLboolean need_update;
 934
 935    switch (pname) {
 936    case GL_TEXTURE_BORDER_COLOR:
 937       {
 938          /* convert int params to float */
 939          GLfloat fparams[4];
 940          fparams[0] = INT_TO_FLOAT(params[0]);
 941          fparams[1] = INT_TO_FLOAT(params[1]);
 942          fparams[2] = INT_TO_FLOAT(params[2]);
 943          fparams[3] = INT_TO_FLOAT(params[3]);
 944          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 945       }
 946       break;
 947    case GL_TEXTURE_MIN_LOD:
 948    case GL_TEXTURE_MAX_LOD:
 949    case GL_TEXTURE_PRIORITY:
 950    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 951    case GL_TEXTURE_LOD_BIAS:
 952    case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
 953       {
 954          /* convert int param to float */
 955          GLfloat fparams[4];
 956          fparams[0] = (GLfloat) params[0];
 957          fparams[1] = fparams[2] = fparams[3] = 0.0F;
 958          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 959       }
 960       break;
 961    default:
 962       /* this will generate an error if pname is illegal */
 963       need_update = set_tex_parameteri(ctx, texObj, pname, params, dsa);
 964    }
 965
 966    if (ctx->Driver.TexParameter && need_update) {
 967       GLfloat fparams[4];
 968       fparams[0] = INT_TO_FLOAT(params[0]);
 969       if (pname == GL_TEXTURE_BORDER_COLOR ||
 970           pname == GL_TEXTURE_CROP_RECT_OES) {
 971          fparams[1] = INT_TO_FLOAT(params[1]);
 972          fparams[2] = INT_TO_FLOAT(params[2]);
 973          fparams[3] = INT_TO_FLOAT(params[3]);
 974       }
 975       ctx->Driver.TexParameter(ctx, texObj, pname, fparams);
 976    }
 977 }
 978
 979 void
 980 _mesa_texture_parameterIiv(struct gl_context *ctx,
 981                            struct gl_texture_object *texObj,
 982                            GLenum pname, const GLint *params, bool dsa)
 983 {
 984    switch (pname) {
 985    case GL_TEXTURE_BORDER_COLOR:
 986       FLUSH_VERTICES(ctx, _NEW_TEXTURE);
 987       /* set the integer-valued border color */
 988       COPY_4V(texObj->Sampler.BorderColor.i, params);
 989       break;
 990    default:
 991       _mesa_texture_parameteriv(ctx, texObj, pname, params, dsa);
 992       break;
 993    }
 994    /* XXX no driver hook for TexParameterIiv() yet */
 995 }
 996
 997 void
 998 _mesa_texture_parameterIuiv(struct gl_context *ctx,
 999                             struct gl_texture_object *texObj,
1000                             GLenum pname, const GLuint *params, bool dsa)
1001 {
1002    switch (pname) {
1003    case GL_TEXTURE_BORDER_COLOR:
1004       FLUSH_VERTICES(ctx, _NEW_TEXTURE);
1005       /* set the unsigned integer-valued border color */
1006       COPY_4V(texObj->Sampler.BorderColor.ui, params);
1007       break;
1008    default:
1009       _mesa_texture_parameteriv(ctx, texObj, pname, (const GLint *) params,
1010                                 dsa);
1011       break;
1012    }
1013    /* XXX no driver hook for TexParameterIuiv() yet */
1014 }
1015
1016 void GLAPIENTRY
1017 _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
1018 {
1019    struct gl_texture_object *texObj;
1020    GET_CURRENT_CONTEXT(ctx);
1021
1022    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1023    if (!texObj)
1024       return;
1025
1026    _mesa_texture_parameterf(ctx, texObj, pname, param, false);
1027 }
1028
1029 void GLAPIENTRY
1030 _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
1031 {
1032    struct gl_texture_object *texObj;
1033    GET_CURRENT_CONTEXT(ctx);
1034
1035    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1036    if (!texObj)
1037       return;
1038
1039    _mesa_texture_parameterfv(ctx, texObj, pname, params, false);
1040 }
1041
1042 void GLAPIENTRY
1043 _mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
1044 {
1045    struct gl_texture_object *texObj;
1046    GET_CURRENT_CONTEXT(ctx);
1047
1048    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1049    if (!texObj)
1050       return;
1051
1052    _mesa_texture_parameteri(ctx, texObj, pname, param, false);
1053 }
1054
1055 void GLAPIENTRY
1056 _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
1057 {
1058    struct gl_texture_object *texObj;
1059    GET_CURRENT_CONTEXT(ctx);
1060
1061    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1062    if (!texObj)
1063       return;
1064
1065    _mesa_texture_parameteriv(ctx, texObj, pname, params, false);
1066 }
1067
1068 /**
1069  * Set tex parameter to integer value(s).  Primarily intended to set
1070  * integer-valued texture border color (for integer-valued textures).
1071  * New in GL 3.0.
1072  */
1073 void GLAPIENTRY
1074 _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
1075 {
1076    struct gl_texture_object *texObj;
1077    GET_CURRENT_CONTEXT(ctx);
1078
1079    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1080    if (!texObj)
1081       return;
1082
1083    _mesa_texture_parameterIiv(ctx, texObj, pname, params, false);
1084 }
1085
1086 /**
1087  * Set tex parameter to unsigned integer value(s).  Primarily intended to set
1088  * uint-valued texture border color (for integer-valued textures).
1089  * New in GL 3.0
1090  */
1091 void GLAPIENTRY
1092 _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
1093 {
1094    struct gl_texture_object *texObj;
1095    GET_CURRENT_CONTEXT(ctx);
1096
1097    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1098    if (!texObj)
1099       return;
1100
1101    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, false);
1102 }
1103
1104
1105 void GLAPIENTRY
1106 _mesa_TextureParameterfv(GLuint texture, GLenum pname, const GLfloat *params)
1107 {
1108    struct gl_texture_object *texObj;
1109    GET_CURRENT_CONTEXT(ctx);
1110
1111    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1112    if (!texObj) {
1113       /* User passed a non-generated name. */
1114       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfv(texture)");
1115       return;
1116    }
1117
1118    _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
1119 }
1120
1121 void GLAPIENTRY
1122 _mesa_TextureParameterf(GLuint texture, GLenum pname, GLfloat param)
1123 {
1124    struct gl_texture_object *texObj;
1125    GET_CURRENT_CONTEXT(ctx);
1126
1127    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1128    if (!texObj) {
1129       /* User passed a non-generated name. */
1130       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterf(texture)");
1131       return;
1132    }
1133
1134    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1135 }
1136
1137 void GLAPIENTRY
1138 _mesa_TextureParameteri(GLuint texture, GLenum pname, GLint param)
1139 {
1140    struct gl_texture_object *texObj;
1141    GET_CURRENT_CONTEXT(ctx);
1142
1143    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1144    if (!texObj) {
1145       /* User passed a non-generated name. */
1146       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteri(texture)");
1147       return;
1148    }
1149
1150    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1151 }
1152
1153 void GLAPIENTRY
1154 _mesa_TextureParameteriv(GLuint texture, GLenum pname,
1155                          const GLint *params)
1156 {
1157    struct gl_texture_object *texObj;
1158    GET_CURRENT_CONTEXT(ctx);
1159
1160    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1161    if (!texObj) {
1162       /* User passed a non-generated name. */
1163       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteriv(texture)");
1164       return;
1165    }
1166
1167    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1168 }
1169
1170
1171 void GLAPIENTRY
1172 _mesa_TextureParameterIiv(GLuint texture, GLenum pname, const GLint *params)
1173 {
1174    struct gl_texture_object *texObj;
1175    GET_CURRENT_CONTEXT(ctx);
1176
1177    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1178    if (!texObj) {
1179       /* User passed a non-generated name. */
1180       _mesa_error(ctx, GL_INVALID_OPERATION,
1181                   "glTextureParameterIiv(texture)");
1182       return;
1183    }
1184
1185    _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
1186 }
1187
1188 void GLAPIENTRY
1189 _mesa_TextureParameterIuiv(GLuint texture, GLenum pname, const GLuint *params)
1190 {
1191    struct gl_texture_object *texObj;
1192    GET_CURRENT_CONTEXT(ctx);
1193
1194    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1195    if (!texObj) {
1196       /* User passed a non-generated name. */
1197       _mesa_error(ctx, GL_INVALID_OPERATION,
1198                   "glTextureParameterIuiv(texture)");
1199       return;
1200    }
1201
1202    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
1203 }
1204
1205 GLboolean
1206 _mesa_legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target,
1207                                            bool dsa)
1208 {
1209    /* Common targets for desktop GL and GLES 3.1. */
1210    switch (target) {
1211    case GL_TEXTURE_2D:
1212    case GL_TEXTURE_3D:
1213       return GL_TRUE;
1214    case GL_TEXTURE_2D_ARRAY_EXT:
1215       return ctx->Extensions.EXT_texture_array;
1216    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1217    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1218    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1219    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1220    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1221    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1222       return ctx->Extensions.ARB_texture_cube_map;
1223    case GL_TEXTURE_2D_MULTISAMPLE:
1224    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1225       return ctx->Extensions.ARB_texture_multisample;
1226    case GL_TEXTURE_BUFFER:
1227       /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts,
1228        * but not in earlier versions that expose ARB_texture_buffer_object.
1229        *
1230        * From the ARB_texture_buffer_object spec:
1231        * "(7) Do buffer textures support texture parameters (TexParameter) or
1232        *      queries (GetTexParameter, GetTexLevelParameter, GetTexImage)?
1233        *
1234        *    RESOLVED:  No. [...] Note that the spec edits above don't add
1235        *    explicit error language for any of these cases.  That is because
1236        *    each of the functions enumerate the set of valid <target>
1237        *    parameters.  Not editing the spec to allow TEXTURE_BUFFER_ARB in
1238        *    these cases means that target is not legal, and an INVALID_ENUM
1239        *    error should be generated."
1240        *
1241        * From the OpenGL 3.1 spec:
1242        * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
1243        */
1244       return (ctx->API == API_OPENGL_CORE && ctx->Version >= 31) ||
1245          _mesa_has_OES_texture_buffer(ctx);
1246    case GL_TEXTURE_CUBE_MAP_ARRAY:
1247       return _mesa_has_texture_cube_map_array(ctx);
1248    }
1249
1250    if (!_mesa_is_desktop_gl(ctx))
1251       return GL_FALSE;
1252
1253    /* Rest of the desktop GL targets. */
1254    switch (target) {
1255    case GL_TEXTURE_1D:
1256    case GL_PROXY_TEXTURE_1D:
1257    case GL_PROXY_TEXTURE_2D:
1258    case GL_PROXY_TEXTURE_3D:
1259       return GL_TRUE;
1260    case GL_PROXY_TEXTURE_CUBE_MAP:
1261       return ctx->Extensions.ARB_texture_cube_map;
1262    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1263       return ctx->Extensions.ARB_texture_cube_map_array;
1264    case GL_TEXTURE_RECTANGLE_NV:
1265    case GL_PROXY_TEXTURE_RECTANGLE_NV:
1266       return ctx->Extensions.NV_texture_rectangle;
1267    case GL_TEXTURE_1D_ARRAY_EXT:
1268    case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1269    case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1270       return ctx->Extensions.EXT_texture_array;
1271    case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1272    case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1273       return ctx->Extensions.ARB_texture_multisample;
1274
1275    /*  This is a valid target for dsa, but the OpenGL 4.5 core spec
1276     *  (30.10.2014) Section 8.11 Texture Queries says:
1277     *       "For GetTextureLevelParameter* only, texture may also be a cube
1278     *       map texture object.  In this case the query is always performed
1279     *       for face zero (the TEXTURE_CUBE_MAP_POSITIVE_X face), since there
1280     *       is no way to specify another face."
1281     */
1282    case GL_TEXTURE_CUBE_MAP:
1283       return dsa;
1284    default:
1285       return GL_FALSE;
1286    }
1287 }
1288
1289
1290 static void
1291 get_tex_level_parameter_image(struct gl_context *ctx,
1292                               const struct gl_texture_object *texObj,
1293                               GLenum target, GLint level,
1294                               GLenum pname, GLint *params,
1295                               bool dsa)
1296 {
1297    const struct gl_texture_image *img = NULL;
1298    struct gl_texture_image dummy_image;
1299    mesa_format texFormat;
1300    const char *suffix = dsa ? "ture" : "";
1301
1302    img = _mesa_select_tex_image(texObj, target, level);
1303    if (!img || img->TexFormat == MESA_FORMAT_NONE) {
1304       /* In case of undefined texture image return the default values.
1305        *
1306        * From OpenGL 4.0 spec, page 398:
1307        *    "The initial internal format of a texel array is RGBA
1308        *     instead of 1. TEXTURE_COMPONENTS is deprecated; always
1309        *     use TEXTURE_INTERNAL_FORMAT."
1310        */
1311       memset(&dummy_image, 0, sizeof(dummy_image));
1312       dummy_image.TexFormat = MESA_FORMAT_NONE;
1313       dummy_image.InternalFormat = GL_RGBA;
1314       dummy_image._BaseFormat = GL_NONE;
1315       dummy_image.FixedSampleLocations = GL_TRUE;
1316
1317       img = &dummy_image;
1318    }
1319
1320    texFormat = img->TexFormat;
1321
1322    switch (pname) {
1323       case GL_TEXTURE_WIDTH:
1324          *params = img->Width;
1325          break;
1326       case GL_TEXTURE_HEIGHT:
1327          *params = img->Height;
1328          break;
1329       case GL_TEXTURE_DEPTH:
1330          *params = img->Depth;
1331          break;
1332       case GL_TEXTURE_INTERNAL_FORMAT:
1333          if (_mesa_is_format_compressed(texFormat)) {
1334             /* need to return the actual compressed format */
1335             *params = _mesa_compressed_format_to_glenum(ctx, texFormat);
1336          }
1337          else {
1338             /* If the true internal format is not compressed but the user
1339              * requested a generic compressed format, we have to return the
1340              * generic base format that matches.
1341              *
1342              * From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec:
1343              *
1344              *     "If no specific compressed format is available,
1345              *     internalformat is instead replaced by the corresponding base
1346              *     internal format."
1347              *
1348              * Otherwise just return the user's requested internal format
1349              */
1350             const GLenum f =
1351                _mesa_gl_compressed_format_base_format(img->InternalFormat);
1352
1353             *params = (f != 0) ? f : img->InternalFormat;
1354          }
1355          break;
1356       case GL_TEXTURE_BORDER:
1357          if (ctx->API != API_OPENGL_COMPAT)
1358             goto invalid_pname;
1359          *params = img->Border;
1360          break;
1361       case GL_TEXTURE_RED_SIZE:
1362       case GL_TEXTURE_GREEN_SIZE:
1363       case GL_TEXTURE_BLUE_SIZE:
1364       case GL_TEXTURE_ALPHA_SIZE:
1365          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1366             *params = _mesa_get_format_bits(texFormat, pname);
1367          else
1368             *params = 0;
1369          break;
1370       case GL_TEXTURE_INTENSITY_SIZE:
1371       case GL_TEXTURE_LUMINANCE_SIZE:
1372          if (ctx->API != API_OPENGL_COMPAT)
1373             goto invalid_pname;
1374          if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) {
1375             *params = _mesa_get_format_bits(texFormat, pname);
1376             if (*params == 0) {
1377                /* intensity or luminance is probably stored as RGB[A] */
1378                *params = MIN2(_mesa_get_format_bits(texFormat,
1379                                                     GL_TEXTURE_RED_SIZE),
1380                               _mesa_get_format_bits(texFormat,
1381                                                     GL_TEXTURE_GREEN_SIZE));
1382             }
1383          }
1384          else {
1385             *params = 0;
1386          }
1387          break;
1388       case GL_TEXTURE_DEPTH_SIZE_ARB:
1389          if (!ctx->Extensions.ARB_depth_texture)
1390             goto invalid_pname;
1391          *params = _mesa_get_format_bits(texFormat, pname);
1392          break;
1393       case GL_TEXTURE_STENCIL_SIZE:
1394          *params = _mesa_get_format_bits(texFormat, pname);
1395          break;
1396       case GL_TEXTURE_SHARED_SIZE:
1397          if (ctx->Version < 30 &&
1398              !ctx->Extensions.EXT_texture_shared_exponent)
1399             goto invalid_pname;
1400          *params = texFormat == MESA_FORMAT_R9G9B9E5_FLOAT ? 5 : 0;
1401          break;
1402
1403       /* GL_ARB_texture_compression */
1404       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1405          if (_mesa_is_format_compressed(texFormat) &&
1406              !_mesa_is_proxy_texture(target)) {
1407             *params = _mesa_format_image_size(texFormat, img->Width,
1408                                               img->Height, img->Depth);
1409     }
1410     else {
1411        _mesa_error(ctx, GL_INVALID_OPERATION,
1412                    "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1413                    _mesa_enum_to_string(pname));
1414     }
1415          break;
1416       case GL_TEXTURE_COMPRESSED:
1417          *params = (GLint) _mesa_is_format_compressed(texFormat);
1418          break;
1419
1420       /* GL_ARB_texture_float */
1421       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1422       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1423          if (ctx->API != API_OPENGL_COMPAT)
1424             goto invalid_pname;
1425          /* FALLTHROUGH */
1426       case GL_TEXTURE_RED_TYPE_ARB:
1427       case GL_TEXTURE_GREEN_TYPE_ARB:
1428       case GL_TEXTURE_BLUE_TYPE_ARB:
1429       case GL_TEXTURE_ALPHA_TYPE_ARB:
1430       case GL_TEXTURE_DEPTH_TYPE_ARB:
1431          if (!ctx->Extensions.ARB_texture_float)
1432             goto invalid_pname;
1433          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1434             *params = _mesa_get_format_datatype(texFormat);
1435          else
1436             *params = GL_NONE;
1437          break;
1438
1439       /* GL_ARB_texture_multisample */
1440       case GL_TEXTURE_SAMPLES:
1441          if (!ctx->Extensions.ARB_texture_multisample)
1442             goto invalid_pname;
1443          *params = img->NumSamples;
1444          break;
1445
1446       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1447          if (!ctx->Extensions.ARB_texture_multisample)
1448             goto invalid_pname;
1449          *params = img->FixedSampleLocations;
1450          break;
1451
1452       /* There is never a buffer data store here, but these pnames still have
1453        * to work.
1454        */
1455
1456       /* GL_ARB_texture_buffer_object */
1457       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1458          if (!ctx->Extensions.ARB_texture_buffer_object)
1459             goto invalid_pname;
1460          *params = 0;
1461          break;
1462
1463       /* GL_ARB_texture_buffer_range */
1464       case GL_TEXTURE_BUFFER_OFFSET:
1465          if (!ctx->Extensions.ARB_texture_buffer_range)
1466             goto invalid_pname;
1467          *params = 0;
1468          break;
1469       case GL_TEXTURE_BUFFER_SIZE:
1470          if (!ctx->Extensions.ARB_texture_buffer_range)
1471             goto invalid_pname;
1472          *params = 0;
1473          break;
1474
1475       default:
1476          goto invalid_pname;
1477    }
1478
1479    /* no error if we get here */
1480    return;
1481
1482 invalid_pname:
1483    _mesa_error(ctx, GL_INVALID_ENUM,
1484                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1485                _mesa_enum_to_string(pname));
1486 }
1487
1488
1489 static void
1490 get_tex_level_parameter_buffer(struct gl_context *ctx,
1491                                const struct gl_texture_object *texObj,
1492                                GLenum pname, GLint *params, bool dsa)
1493 {
1494    const struct gl_buffer_object *bo = texObj->BufferObject;
1495    mesa_format texFormat = texObj->_BufferObjectFormat;
1496    int bytes = MAX2(1, _mesa_get_format_bytes(texFormat));
1497    GLenum internalFormat = texObj->BufferObjectFormat;
1498    GLenum baseFormat = _mesa_get_format_base_format(texFormat);
1499    const char *suffix = dsa ? "ture" : "";
1500
1501    if (!bo) {
1502       /* undefined texture buffer object */
1503       switch (pname) {
1504       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1505          *params = GL_TRUE;
1506          break;
1507       case GL_TEXTURE_INTERNAL_FORMAT:
1508          *params = internalFormat;
1509          break;
1510       default:
1511          *params = 0;
1512          break;
1513       }
1514       return;
1515    }
1516
1517    switch (pname) {
1518       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1519          *params = bo->Name;
1520          break;
1521       case GL_TEXTURE_WIDTH:
1522          *params = ((texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize)
1523             / bytes;
1524          break;
1525       case GL_TEXTURE_HEIGHT:
1526       case GL_TEXTURE_DEPTH:
1527          *params = 1;
1528          break;
1529       case GL_TEXTURE_BORDER:
1530       case GL_TEXTURE_SHARED_SIZE:
1531       case GL_TEXTURE_COMPRESSED:
1532          *params = 0;
1533          break;
1534       case GL_TEXTURE_INTERNAL_FORMAT:
1535          *params = internalFormat;
1536          break;
1537       case GL_TEXTURE_RED_SIZE:
1538       case GL_TEXTURE_GREEN_SIZE:
1539       case GL_TEXTURE_BLUE_SIZE:
1540       case GL_TEXTURE_ALPHA_SIZE:
1541          if (_mesa_base_format_has_channel(baseFormat, pname))
1542             *params = _mesa_get_format_bits(texFormat, pname);
1543          else
1544             *params = 0;
1545          break;
1546       case GL_TEXTURE_INTENSITY_SIZE:
1547       case GL_TEXTURE_LUMINANCE_SIZE:
1548          if (_mesa_base_format_has_channel(baseFormat, pname)) {
1549             *params = _mesa_get_format_bits(texFormat, pname);
1550             if (*params == 0) {
1551                /* intensity or luminance is probably stored as RGB[A] */
1552                *params = MIN2(_mesa_get_format_bits(texFormat,
1553                                                     GL_TEXTURE_RED_SIZE),
1554                               _mesa_get_format_bits(texFormat,
1555                                                     GL_TEXTURE_GREEN_SIZE));
1556             }
1557          } else {
1558             *params = 0;
1559          }
1560          break;
1561       case GL_TEXTURE_DEPTH_SIZE_ARB:
1562       case GL_TEXTURE_STENCIL_SIZE_EXT:
1563          *params = _mesa_get_format_bits(texFormat, pname);
1564          break;
1565
1566       /* GL_ARB_texture_buffer_range */
1567       case GL_TEXTURE_BUFFER_OFFSET:
1568          if (!ctx->Extensions.ARB_texture_buffer_range)
1569             goto invalid_pname;
1570          *params = texObj->BufferOffset;
1571          break;
1572       case GL_TEXTURE_BUFFER_SIZE:
1573          if (!ctx->Extensions.ARB_texture_buffer_range)
1574             goto invalid_pname;
1575          *params = (texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize;
1576          break;
1577
1578       /* GL_ARB_texture_multisample */
1579       case GL_TEXTURE_SAMPLES:
1580          if (!ctx->Extensions.ARB_texture_multisample)
1581             goto invalid_pname;
1582          *params = 0;
1583          break;
1584
1585       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1586          if (!ctx->Extensions.ARB_texture_multisample)
1587             goto invalid_pname;
1588          *params = GL_TRUE;
1589          break;
1590
1591       /* GL_ARB_texture_compression */
1592       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1593          /* Always illegal for GL_TEXTURE_BUFFER */
1594          _mesa_error(ctx, GL_INVALID_OPERATION,
1595                      "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1596                      _mesa_enum_to_string(pname));
1597          break;
1598
1599       /* GL_ARB_texture_float */
1600       case GL_TEXTURE_RED_TYPE_ARB:
1601       case GL_TEXTURE_GREEN_TYPE_ARB:
1602       case GL_TEXTURE_BLUE_TYPE_ARB:
1603       case GL_TEXTURE_ALPHA_TYPE_ARB:
1604       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1605       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1606       case GL_TEXTURE_DEPTH_TYPE_ARB:
1607          if (!ctx->Extensions.ARB_texture_float)
1608             goto invalid_pname;
1609          if (_mesa_base_format_has_channel(baseFormat, pname))
1610             *params = _mesa_get_format_datatype(texFormat);
1611          else
1612             *params = GL_NONE;
1613          break;
1614
1615       default:
1616          goto invalid_pname;
1617    }
1618
1619    /* no error if we get here */
1620    return;
1621
1622 invalid_pname:
1623    _mesa_error(ctx, GL_INVALID_ENUM,
1624                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1625                _mesa_enum_to_string(pname));
1626 }
1627
1628 static bool
1629 valid_tex_level_parameteriv_target(struct gl_context *ctx, GLenum target,
1630                                    bool dsa)
1631 {
1632    const char *suffix = dsa ? "ture" : "";
1633    if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, dsa)) {
1634       _mesa_error(ctx, GL_INVALID_ENUM,
1635                   "glGetTex%sLevelParameter[if]v(target=%s)", suffix,
1636                   _mesa_enum_to_string(target));
1637       return false;
1638    }
1639    return true;
1640 }
1641
1642 /**
1643  * This isn't exposed to the rest of the driver because it is a part of the
1644  * OpenGL API that is rarely used.
1645  */
1646 static void
1647 get_tex_level_parameteriv(struct gl_context *ctx,
1648                           struct gl_texture_object *texObj,
1649                           GLenum target, GLint level,
1650                           GLenum pname, GLint *params,
1651                           bool dsa)
1652 {
1653    GLint maxLevels;
1654    const char *suffix = dsa ? "ture" : "";
1655
1656    /* Check for errors */
1657    if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
1658       _mesa_error(ctx, GL_INVALID_OPERATION,
1659                   "glGetTex%sLevelParameter[if]v("
1660                   "current unit >= max combined texture units)", suffix);
1661       return;
1662    }
1663
1664    maxLevels = _mesa_max_texture_levels(ctx, target);
1665    assert(maxLevels != 0);
1666
1667    if (level < 0 || level >= maxLevels) {
1668       _mesa_error(ctx, GL_INVALID_VALUE,
1669                   "glGetTex%sLevelParameter[if]v(level out of range)", suffix);
1670       return;
1671    }
1672
1673    /* Get the level parameter */
1674    if (target == GL_TEXTURE_BUFFER) {
1675       get_tex_level_parameter_buffer(ctx, texObj, pname, params, dsa);
1676    }
1677    else {
1678       get_tex_level_parameter_image(ctx, texObj, target,
1679                                     level, pname, params, dsa);
1680    }
1681 }
1682
1683 void GLAPIENTRY
1684 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
1685                               GLenum pname, GLfloat *params )
1686 {
1687    struct gl_texture_object *texObj;
1688    GLint iparam;
1689    GET_CURRENT_CONTEXT(ctx);
1690
1691    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1692       return;
1693
1694    texObj = _mesa_get_current_tex_object(ctx, target);
1695    if (!texObj)
1696       return;
1697
1698    get_tex_level_parameteriv(ctx, texObj, target, level,
1699                              pname, &iparam, false);
1700
1701    *params = (GLfloat) iparam;
1702 }
1703
1704 void GLAPIENTRY
1705 _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
1706                               GLenum pname, GLint *params )
1707 {
1708    struct gl_texture_object *texObj;
1709    GET_CURRENT_CONTEXT(ctx);
1710
1711    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1712       return;
1713
1714    texObj = _mesa_get_current_tex_object(ctx, target);
1715    if (!texObj)
1716       return;
1717
1718    get_tex_level_parameteriv(ctx, texObj, target, level,
1719                              pname, params, false);
1720 }
1721
1722 void GLAPIENTRY
1723 _mesa_GetTextureLevelParameterfv(GLuint texture, GLint level,
1724                                  GLenum pname, GLfloat *params)
1725 {
1726    struct gl_texture_object *texObj;
1727    GLint iparam;
1728    GET_CURRENT_CONTEXT(ctx);
1729
1730    texObj = _mesa_lookup_texture_err(ctx, texture,
1731                                      "glGetTextureLevelParameterfv");
1732    if (!texObj)
1733       return;
1734
1735    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1736       return;
1737
1738    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1739                              pname, &iparam, true);
1740
1741    *params = (GLfloat) iparam;
1742 }
1743
1744 void GLAPIENTRY
1745 _mesa_GetTextureLevelParameteriv(GLuint texture, GLint level,
1746                                  GLenum pname, GLint *params)
1747 {
1748    struct gl_texture_object *texObj;
1749    GET_CURRENT_CONTEXT(ctx);
1750
1751    texObj = _mesa_lookup_texture_err(ctx, texture,
1752                                      "glGetTextureLevelParameteriv");
1753    if (!texObj)
1754       return;
1755
1756    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1757       return;
1758
1759    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1760                              pname, params, true);
1761 }
1762
1763 /**
1764  * This isn't exposed to the rest of the driver because it is a part of the
1765  * OpenGL API that is rarely used.
1766  */
1767 static void
1768 get_tex_parameterfv(struct gl_context *ctx,
1769                     struct gl_texture_object *obj,
1770                     GLenum pname, GLfloat *params, bool dsa)
1771 {
1772    _mesa_lock_context_textures(ctx);
1773    switch (pname) {
1774       case GL_TEXTURE_MAG_FILTER:
1775          *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
1776          break;
1777       case GL_TEXTURE_MIN_FILTER:
1778          *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
1779          break;
1780       case GL_TEXTURE_WRAP_S:
1781          *params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
1782          break;
1783       case GL_TEXTURE_WRAP_T:
1784          *params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
1785          break;
1786       case GL_TEXTURE_WRAP_R:
1787          *params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
1788          break;
1789       case GL_TEXTURE_BORDER_COLOR:
1790          if (ctx->API == API_OPENGLES ||
1791              !ctx->Extensions.ARB_texture_border_clamp)
1792             goto invalid_pname;
1793
1794          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1795             _mesa_update_state_locked(ctx);
1796          if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
1797             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
1798             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
1799             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
1800             params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
1801          }
1802          else {
1803             params[0] = obj->Sampler.BorderColor.f[0];
1804             params[1] = obj->Sampler.BorderColor.f[1];
1805             params[2] = obj->Sampler.BorderColor.f[2];
1806             params[3] = obj->Sampler.BorderColor.f[3];
1807          }
1808          break;
1809       case GL_TEXTURE_RESIDENT:
1810          if (ctx->API != API_OPENGL_COMPAT)
1811             goto invalid_pname;
1812
1813          *params = 1.0F;
1814          break;
1815       case GL_TEXTURE_PRIORITY:
1816          if (ctx->API != API_OPENGL_COMPAT)
1817             goto invalid_pname;
1818
1819          *params = obj->Priority;
1820          break;
1821       case GL_TEXTURE_MIN_LOD:
1822          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1823             goto invalid_pname;
1824
1825          *params = obj->Sampler.MinLod;
1826          break;
1827       case GL_TEXTURE_MAX_LOD:
1828          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1829             goto invalid_pname;
1830
1831          *params = obj->Sampler.MaxLod;
1832          break;
1833       case GL_TEXTURE_BASE_LEVEL:
1834          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1835             goto invalid_pname;
1836
1837          *params = (GLfloat) obj->BaseLevel;
1838          break;
1839       case GL_TEXTURE_MAX_LEVEL:
1840          *params = (GLfloat) obj->MaxLevel;
1841          break;
1842       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1843          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
1844             goto invalid_pname;
1845          *params = obj->Sampler.MaxAnisotropy;
1846          break;
1847       case GL_GENERATE_MIPMAP_SGIS:
1848          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1849             goto invalid_pname;
1850
1851          *params = (GLfloat) obj->GenerateMipmap;
1852          break;
1853       case GL_TEXTURE_COMPARE_MODE_ARB:
1854          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
1855              && !_mesa_is_gles3(ctx))
1856             goto invalid_pname;
1857          *params = (GLfloat) obj->Sampler.CompareMode;
1858          break;
1859       case GL_TEXTURE_COMPARE_FUNC_ARB:
1860          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
1861              && !_mesa_is_gles3(ctx))
1862             goto invalid_pname;
1863          *params = (GLfloat) obj->Sampler.CompareFunc;
1864          break;
1865       case GL_DEPTH_TEXTURE_MODE_ARB:
1866          /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has
1867           * never existed in OpenGL ES.
1868           */
1869          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
1870             goto invalid_pname;
1871          *params = (GLfloat) obj->DepthMode;
1872          break;
1873       case GL_DEPTH_STENCIL_TEXTURE_MODE:
1874          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
1875             goto invalid_pname;
1876          *params = (GLfloat)
1877             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
1878          break;
1879       case GL_TEXTURE_LOD_BIAS:
1880          if (_mesa_is_gles(ctx))
1881             goto invalid_pname;
1882
1883          *params = obj->Sampler.LodBias;
1884          break;
1885       case GL_TEXTURE_CROP_RECT_OES:
1886          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
1887             goto invalid_pname;
1888
1889          params[0] = (GLfloat) obj->CropRect[0];
1890          params[1] = (GLfloat) obj->CropRect[1];
1891          params[2] = (GLfloat) obj->CropRect[2];
1892          params[3] = (GLfloat) obj->CropRect[3];
1893          break;
1894
1895       case GL_TEXTURE_SWIZZLE_R_EXT:
1896       case GL_TEXTURE_SWIZZLE_G_EXT:
1897       case GL_TEXTURE_SWIZZLE_B_EXT:
1898       case GL_TEXTURE_SWIZZLE_A_EXT:
1899          if ((!_mesa_is_desktop_gl(ctx)
1900               || !ctx->Extensions.EXT_texture_swizzle)
1901              && !_mesa_is_gles3(ctx))
1902             goto invalid_pname;
1903          *params = (GLfloat) obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
1904          break;
1905
1906       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
1907          if ((!_mesa_is_desktop_gl(ctx)
1908               || !ctx->Extensions.EXT_texture_swizzle)
1909              && !_mesa_is_gles3(ctx)) {
1910             goto invalid_pname;
1911          }
1912          else {
1913             GLuint comp;
1914             for (comp = 0; comp < 4; comp++) {
1915                params[comp] = (GLfloat) obj->Swizzle[comp];
1916             }
1917          }
1918          break;
1919
1920       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1921          if (!_mesa_is_desktop_gl(ctx)
1922              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
1923             goto invalid_pname;
1924          *params = (GLfloat) obj->Sampler.CubeMapSeamless;
1925          break;
1926
1927       case GL_TEXTURE_IMMUTABLE_FORMAT:
1928          *params = (GLfloat) obj->Immutable;
1929          break;
1930
1931       case GL_TEXTURE_IMMUTABLE_LEVELS:
1932          if (_mesa_is_gles3(ctx) ||
1933              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
1934             *params = (GLfloat) obj->ImmutableLevels;
1935          else
1936             goto invalid_pname;
1937          break;
1938
1939       case GL_TEXTURE_VIEW_MIN_LEVEL:
1940          if (!ctx->Extensions.ARB_texture_view)
1941             goto invalid_pname;
1942          *params = (GLfloat) obj->MinLevel;
1943          break;
1944
1945       case GL_TEXTURE_VIEW_NUM_LEVELS:
1946          if (!ctx->Extensions.ARB_texture_view)
1947             goto invalid_pname;
1948          *params = (GLfloat) obj->NumLevels;
1949          break;
1950
1951       case GL_TEXTURE_VIEW_MIN_LAYER:
1952          if (!ctx->Extensions.ARB_texture_view)
1953             goto invalid_pname;
1954          *params = (GLfloat) obj->MinLayer;
1955          break;
1956
1957       case GL_TEXTURE_VIEW_NUM_LAYERS:
1958          if (!ctx->Extensions.ARB_texture_view)
1959             goto invalid_pname;
1960          *params = (GLfloat) obj->NumLayers;
1961          break;
1962
1963       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
1964          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
1965             goto invalid_pname;
1966          *params = (GLfloat) obj->RequiredTextureImageUnits;
1967          break;
1968
1969       case GL_TEXTURE_SRGB_DECODE_EXT:
1970          if (!ctx->Extensions.EXT_texture_sRGB_decode)
1971             goto invalid_pname;
1972          *params = (GLfloat) obj->Sampler.sRGBDecode;
1973          break;
1974
1975       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
1976          if (!ctx->Extensions.ARB_shader_image_load_store)
1977             goto invalid_pname;
1978          *params = (GLfloat) obj->ImageFormatCompatibilityType;
1979          break;
1980
1981       case GL_TEXTURE_TARGET:
1982          if (ctx->API != API_OPENGL_CORE)
1983             goto invalid_pname;
1984          *params = ENUM_TO_FLOAT(obj->Target);
1985          break;
1986
1987       default:
1988          goto invalid_pname;
1989    }
1990
1991    /* no error if we get here */
1992    _mesa_unlock_context_textures(ctx);
1993    return;
1994
1995 invalid_pname:
1996    _mesa_unlock_context_textures(ctx);
1997    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameterfv(pname=0x%x)",
1998                dsa ? "ture" : "", pname);
1999 }
2000
2001
2002 static void
2003 get_tex_parameteriv(struct gl_context *ctx,
2004                     struct gl_texture_object *obj,
2005                     GLenum pname, GLint *params, bool dsa)
2006 {
2007    _mesa_lock_texture(ctx, obj);
2008    switch (pname) {
2009       case GL_TEXTURE_MAG_FILTER:
2010          *params = (GLint) obj->Sampler.MagFilter;
2011          break;
2012       case GL_TEXTURE_MIN_FILTER:
2013          *params = (GLint) obj->Sampler.MinFilter;
2014          break;
2015       case GL_TEXTURE_WRAP_S:
2016          *params = (GLint) obj->Sampler.WrapS;
2017          break;
2018       case GL_TEXTURE_WRAP_T:
2019          *params = (GLint) obj->Sampler.WrapT;
2020          break;
2021       case GL_TEXTURE_WRAP_R:
2022          *params = (GLint) obj->Sampler.WrapR;
2023          break;
2024       case GL_TEXTURE_BORDER_COLOR:
2025          if (ctx->API == API_OPENGLES ||
2026              !ctx->Extensions.ARB_texture_border_clamp)
2027             goto invalid_pname;
2028
2029          {
2030             GLfloat b[4];
2031             b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
2032             b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
2033             b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
2034             b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
2035             params[0] = FLOAT_TO_INT(b[0]);
2036             params[1] = FLOAT_TO_INT(b[1]);
2037             params[2] = FLOAT_TO_INT(b[2]);
2038             params[3] = FLOAT_TO_INT(b[3]);
2039          }
2040          break;
2041       case GL_TEXTURE_RESIDENT:
2042          if (ctx->API != API_OPENGL_COMPAT)
2043             goto invalid_pname;
2044
2045          *params = 1;
2046          break;
2047       case GL_TEXTURE_PRIORITY:
2048          if (ctx->API != API_OPENGL_COMPAT)
2049             goto invalid_pname;
2050
2051          *params = FLOAT_TO_INT(obj->Priority);
2052          break;
2053       case GL_TEXTURE_MIN_LOD:
2054          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2055             goto invalid_pname;
2056          /* GL spec 'Data Conversions' section specifies that floating-point
2057           * value in integer Get function is rounded to nearest integer
2058           */
2059          *params = IROUND(obj->Sampler.MinLod);
2060          break;
2061       case GL_TEXTURE_MAX_LOD:
2062          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2063             goto invalid_pname;
2064          /* GL spec 'Data Conversions' section specifies that floating-point
2065           * value in integer Get function is rounded to nearest integer
2066           */
2067          *params = IROUND(obj->Sampler.MaxLod);
2068          break;
2069       case GL_TEXTURE_BASE_LEVEL:
2070          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2071             goto invalid_pname;
2072
2073          *params = obj->BaseLevel;
2074          break;
2075       case GL_TEXTURE_MAX_LEVEL:
2076          *params = obj->MaxLevel;
2077          break;
2078       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
2079          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
2080             goto invalid_pname;
2081          /* GL spec 'Data Conversions' section specifies that floating-point
2082           * value in integer Get function is rounded to nearest integer
2083           */
2084          *params = IROUND(obj->Sampler.MaxAnisotropy);
2085          break;
2086       case GL_GENERATE_MIPMAP_SGIS:
2087          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
2088             goto invalid_pname;
2089
2090          *params = (GLint) obj->GenerateMipmap;
2091          break;
2092       case GL_TEXTURE_COMPARE_MODE_ARB:
2093          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2094              && !_mesa_is_gles3(ctx))
2095             goto invalid_pname;
2096          *params = (GLint) obj->Sampler.CompareMode;
2097          break;
2098       case GL_TEXTURE_COMPARE_FUNC_ARB:
2099          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2100              && !_mesa_is_gles3(ctx))
2101             goto invalid_pname;
2102          *params = (GLint) obj->Sampler.CompareFunc;
2103          break;
2104       case GL_DEPTH_TEXTURE_MODE_ARB:
2105          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
2106             goto invalid_pname;
2107          *params = (GLint) obj->DepthMode;
2108          break;
2109       case GL_DEPTH_STENCIL_TEXTURE_MODE:
2110          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
2111             goto invalid_pname;
2112          *params = (GLint)
2113             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
2114          break;
2115       case GL_TEXTURE_LOD_BIAS:
2116          if (_mesa_is_gles(ctx))
2117             goto invalid_pname;
2118
2119          /* GL spec 'Data Conversions' section specifies that floating-point
2120           * value in integer Get function is rounded to nearest integer
2121           */
2122          *params = IROUND(obj->Sampler.LodBias);
2123          break;
2124       case GL_TEXTURE_CROP_RECT_OES:
2125          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
2126             goto invalid_pname;
2127
2128          params[0] = obj->CropRect[0];
2129          params[1] = obj->CropRect[1];
2130          params[2] = obj->CropRect[2];
2131          params[3] = obj->CropRect[3];
2132          break;
2133       case GL_TEXTURE_SWIZZLE_R_EXT:
2134       case GL_TEXTURE_SWIZZLE_G_EXT:
2135       case GL_TEXTURE_SWIZZLE_B_EXT:
2136       case GL_TEXTURE_SWIZZLE_A_EXT:
2137          if ((!_mesa_is_desktop_gl(ctx)
2138               || !ctx->Extensions.EXT_texture_swizzle)
2139              && !_mesa_is_gles3(ctx))
2140             goto invalid_pname;
2141          *params = obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
2142          break;
2143
2144       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
2145          if ((!_mesa_is_desktop_gl(ctx)
2146               || !ctx->Extensions.EXT_texture_swizzle)
2147              && !_mesa_is_gles3(ctx))
2148             goto invalid_pname;
2149          COPY_4V(params, obj->Swizzle);
2150          break;
2151
2152       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
2153          if (!_mesa_is_desktop_gl(ctx)
2154              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
2155             goto invalid_pname;
2156          *params = (GLint) obj->Sampler.CubeMapSeamless;
2157          break;
2158
2159       case GL_TEXTURE_IMMUTABLE_FORMAT:
2160          *params = (GLint) obj->Immutable;
2161          break;
2162
2163       case GL_TEXTURE_IMMUTABLE_LEVELS:
2164          if (_mesa_is_gles3(ctx) ||
2165              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
2166             *params = obj->ImmutableLevels;
2167          else
2168             goto invalid_pname;
2169          break;
2170
2171       case GL_TEXTURE_VIEW_MIN_LEVEL:
2172          if (!ctx->Extensions.ARB_texture_view)
2173             goto invalid_pname;
2174          *params = (GLint) obj->MinLevel;
2175          break;
2176
2177       case GL_TEXTURE_VIEW_NUM_LEVELS:
2178          if (!ctx->Extensions.ARB_texture_view)
2179             goto invalid_pname;
2180          *params = (GLint) obj->NumLevels;
2181          break;
2182
2183       case GL_TEXTURE_VIEW_MIN_LAYER:
2184          if (!ctx->Extensions.ARB_texture_view)
2185             goto invalid_pname;
2186          *params = (GLint) obj->MinLayer;
2187          break;
2188
2189       case GL_TEXTURE_VIEW_NUM_LAYERS:
2190          if (!ctx->Extensions.ARB_texture_view)
2191             goto invalid_pname;
2192          *params = (GLint) obj->NumLayers;
2193          break;
2194
2195       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
2196          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
2197             goto invalid_pname;
2198          *params = obj->RequiredTextureImageUnits;
2199          break;
2200
2201       case GL_TEXTURE_SRGB_DECODE_EXT:
2202          if (!ctx->Extensions.EXT_texture_sRGB_decode)
2203             goto invalid_pname;
2204          *params = obj->Sampler.sRGBDecode;
2205          break;
2206
2207       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2208          if (!ctx->Extensions.ARB_shader_image_load_store)
2209             goto invalid_pname;
2210          *params = obj->ImageFormatCompatibilityType;
2211          break;
2212
2213       case GL_TEXTURE_TARGET:
2214          if (ctx->API != API_OPENGL_CORE)
2215             goto invalid_pname;
2216          *params = (GLint) obj->Target;
2217          break;
2218
2219       default:
2220          goto invalid_pname;
2221    }
2222
2223    /* no error if we get here */
2224    _mesa_unlock_texture(ctx, obj);
2225    return;
2226
2227 invalid_pname:
2228    _mesa_unlock_texture(ctx, obj);
2229    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameteriv(pname=0x%x)",
2230                dsa ? "ture" : "", pname);
2231 }
2232
2233 static void
2234 get_tex_parameterIiv(struct gl_context *ctx,
2235                      struct gl_texture_object *obj,
2236                      GLenum pname, GLint *params, bool dsa)
2237 {
2238    switch (pname) {
2239    case GL_TEXTURE_BORDER_COLOR:
2240       COPY_4V(params, obj->Sampler.BorderColor.i);
2241       break;
2242    default:
2243       get_tex_parameteriv(ctx, obj, pname, params, dsa);
2244    }
2245 }
2246
2247 static void
2248 get_tex_parameterIuiv(struct gl_context *ctx,
2249                       struct gl_texture_object *obj,
2250                       GLenum pname, GLuint *params, bool dsa)
2251 {
2252    switch (pname) {
2253    case GL_TEXTURE_BORDER_COLOR:
2254       COPY_4V(params, obj->Sampler.BorderColor.i);
2255       break;
2256    default:
2257       {
2258          GLint ip[4];
2259          get_tex_parameteriv(ctx, obj, pname, ip, dsa);
2260          params[0] = ip[0];
2261          if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT ||
2262              pname == GL_TEXTURE_CROP_RECT_OES) {
2263             params[1] = ip[1];
2264             params[2] = ip[2];
2265             params[3] = ip[3];
2266          }
2267       }
2268    }
2269 }
2270
2271 void GLAPIENTRY
2272 _mesa_GetTexParameterfv(GLenum target, GLenum pname, GLfloat *params)
2273 {
2274    struct gl_texture_object *obj;
2275    GET_CURRENT_CONTEXT(ctx);
2276
2277    obj = get_texobj_by_target(ctx, target, GL_TRUE);
2278    if (!obj)
2279       return;
2280
2281    get_tex_parameterfv(ctx, obj, pname, params, false);
2282 }
2283
2284 void GLAPIENTRY
2285 _mesa_GetTexParameteriv(GLenum target, GLenum pname, GLint *params)
2286 {
2287    struct gl_texture_object *obj;
2288    GET_CURRENT_CONTEXT(ctx);
2289
2290    obj = get_texobj_by_target(ctx, target, GL_TRUE);
2291    if (!obj)
2292       return;
2293
2294    get_tex_parameteriv(ctx, obj, pname, params, false);
2295 }
2296
2297 /** New in GL 3.0 */
2298 void GLAPIENTRY
2299 _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
2300 {
2301    struct gl_texture_object *texObj;
2302    GET_CURRENT_CONTEXT(ctx);
2303
2304    texObj = get_texobj_by_target(ctx, target, GL_TRUE);
2305    if (!texObj)
2306       return;
2307
2308    get_tex_parameterIiv(ctx, texObj, pname, params, false);
2309 }
2310
2311
2312 /** New in GL 3.0 */
2313 void GLAPIENTRY
2314 _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
2315 {
2316    struct gl_texture_object *texObj;
2317    GET_CURRENT_CONTEXT(ctx);
2318
2319    texObj = get_texobj_by_target(ctx, target, GL_TRUE);
2320    if (!texObj)
2321       return;
2322
2323    get_tex_parameterIuiv(ctx, texObj, pname, params, false);
2324 }
2325
2326
2327 void GLAPIENTRY
2328 _mesa_GetTextureParameterfv(GLuint texture, GLenum pname, GLfloat *params)
2329 {
2330    struct gl_texture_object *obj;
2331    GET_CURRENT_CONTEXT(ctx);
2332
2333    obj = get_texobj_by_name(ctx, texture, GL_TRUE);
2334    if (!obj) {
2335       /* User passed a non-generated name. */
2336       _mesa_error(ctx, GL_INVALID_OPERATION,
2337                   "glGetTextureParameterfv(texture)");
2338       return;
2339    }
2340
2341    get_tex_parameterfv(ctx, obj, pname, params, true);
2342 }
2343
2344 void GLAPIENTRY
2345 _mesa_GetTextureParameteriv(GLuint texture, GLenum pname, GLint *params)
2346 {
2347    struct gl_texture_object *obj;
2348    GET_CURRENT_CONTEXT(ctx);
2349
2350    obj = get_texobj_by_name(ctx, texture, GL_TRUE);
2351    if (!obj) {
2352       /* User passed a non-generated name. */
2353       _mesa_error(ctx, GL_INVALID_OPERATION,
2354                   "glGetTextureParameteriv(texture)");
2355       return;
2356    }
2357
2358    get_tex_parameteriv(ctx, obj, pname, params, true);
2359 }
2360
2361 void GLAPIENTRY
2362 _mesa_GetTextureParameterIiv(GLuint texture, GLenum pname, GLint *params)
2363 {
2364    struct gl_texture_object *texObj;
2365    GET_CURRENT_CONTEXT(ctx);
2366
2367    texObj = get_texobj_by_name(ctx, texture, GL_TRUE);
2368    if (!texObj) {
2369       /* User passed a non-generated name. */
2370       _mesa_error(ctx, GL_INVALID_OPERATION,
2371                   "glGetTextureParameterIiv(texture)");
2372       return;
2373    }
2374
2375    get_tex_parameterIiv(ctx, texObj, pname, params, true);
2376 }
2377
2378
2379 void GLAPIENTRY
2380 _mesa_GetTextureParameterIuiv(GLuint texture, GLenum pname, GLuint *params)
2381 {
2382    struct gl_texture_object *texObj;
2383    GET_CURRENT_CONTEXT(ctx);
2384
2385    texObj = get_texobj_by_name(ctx, texture, GL_TRUE);
2386    if (!texObj) {
2387       /* User passed a non-generated name. */
2388       _mesa_error(ctx, GL_INVALID_OPERATION,
2389                   "glGetTextureParameterIuiv(texture)");
2390       return;
2391    }
2392
2393    get_tex_parameterIuiv(ctx, texObj, pname, params, true);
2394 }