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);
 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);
 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       ctx->Driver.TexParameter(ctx, texObj, pname);
 923    }
 924 }
 925
 926
 927 void
 928 _mesa_texture_parameteriv(struct gl_context *ctx,
 929                           struct gl_texture_object *texObj,
 930                           GLenum pname, const GLint *params, bool dsa)
 931 {
 932    GLboolean need_update;
 933
 934    switch (pname) {
 935    case GL_TEXTURE_BORDER_COLOR:
 936       {
 937          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
 938             _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameteriv(texture)");
 939             return;
 940          }
 941          /* convert int params to float */
 942          GLfloat fparams[4];
 943          fparams[0] = INT_TO_FLOAT(params[0]);
 944          fparams[1] = INT_TO_FLOAT(params[1]);
 945          fparams[2] = INT_TO_FLOAT(params[2]);
 946          fparams[3] = INT_TO_FLOAT(params[3]);
 947          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 948       }
 949       break;
 950    case GL_TEXTURE_MIN_LOD:
 951    case GL_TEXTURE_MAX_LOD:
 952    case GL_TEXTURE_PRIORITY:
 953    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 954    case GL_TEXTURE_LOD_BIAS:
 955    case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
 956       {
 957          /* convert int param to float */
 958          GLfloat fparams[4];
 959          fparams[0] = (GLfloat) params[0];
 960          fparams[1] = fparams[2] = fparams[3] = 0.0F;
 961          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 962       }
 963       break;
 964    default:
 965       /* this will generate an error if pname is illegal */
 966       need_update = set_tex_parameteri(ctx, texObj, pname, params, dsa);
 967    }
 968
 969    if (ctx->Driver.TexParameter && need_update) {
 970       ctx->Driver.TexParameter(ctx, texObj, pname);
 971    }
 972 }
 973
 974 void
 975 _mesa_texture_parameterIiv(struct gl_context *ctx,
 976                            struct gl_texture_object *texObj,
 977                            GLenum pname, const GLint *params, bool dsa)
 978 {
 979    switch (pname) {
 980    case GL_TEXTURE_BORDER_COLOR:
 981       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
 982          _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIiv(texture)");
 983          return;
 984       }
 985       FLUSH_VERTICES(ctx, _NEW_TEXTURE);
 986       /* set the integer-valued border color */
 987       COPY_4V(texObj->Sampler.BorderColor.i, params);
 988       break;
 989    default:
 990       _mesa_texture_parameteriv(ctx, texObj, pname, params, dsa);
 991       break;
 992    }
 993    /* XXX no driver hook for TexParameterIiv() yet */
 994 }
 995
 996 void
 997 _mesa_texture_parameterIuiv(struct gl_context *ctx,
 998                             struct gl_texture_object *texObj,
 999                             GLenum pname, const GLuint *params, bool dsa)
1000 {
1001    switch (pname) {
1002    case GL_TEXTURE_BORDER_COLOR:
1003       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
1004          _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIuiv(texture)");
1005          return;
1006       }
1007       FLUSH_VERTICES(ctx, _NEW_TEXTURE);
1008       /* set the unsigned integer-valued border color */
1009       COPY_4V(texObj->Sampler.BorderColor.ui, params);
1010       break;
1011    default:
1012       _mesa_texture_parameteriv(ctx, texObj, pname, (const GLint *) params,
1013                                 dsa);
1014       break;
1015    }
1016    /* XXX no driver hook for TexParameterIuiv() yet */
1017 }
1018
1019 void GLAPIENTRY
1020 _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
1021 {
1022    struct gl_texture_object *texObj;
1023    GET_CURRENT_CONTEXT(ctx);
1024
1025    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1026    if (!texObj)
1027       return;
1028
1029    _mesa_texture_parameterf(ctx, texObj, pname, param, false);
1030 }
1031
1032 void GLAPIENTRY
1033 _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
1034 {
1035    struct gl_texture_object *texObj;
1036    GET_CURRENT_CONTEXT(ctx);
1037
1038    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1039    if (!texObj)
1040       return;
1041
1042    _mesa_texture_parameterfv(ctx, texObj, pname, params, false);
1043 }
1044
1045 void GLAPIENTRY
1046 _mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
1047 {
1048    struct gl_texture_object *texObj;
1049    GET_CURRENT_CONTEXT(ctx);
1050
1051    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1052    if (!texObj)
1053       return;
1054
1055    _mesa_texture_parameteri(ctx, texObj, pname, param, false);
1056 }
1057
1058 void GLAPIENTRY
1059 _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
1060 {
1061    struct gl_texture_object *texObj;
1062    GET_CURRENT_CONTEXT(ctx);
1063
1064    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1065    if (!texObj)
1066       return;
1067
1068    _mesa_texture_parameteriv(ctx, texObj, pname, params, false);
1069 }
1070
1071 /**
1072  * Set tex parameter to integer value(s).  Primarily intended to set
1073  * integer-valued texture border color (for integer-valued textures).
1074  * New in GL 3.0.
1075  */
1076 void GLAPIENTRY
1077 _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
1078 {
1079    struct gl_texture_object *texObj;
1080    GET_CURRENT_CONTEXT(ctx);
1081
1082    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1083    if (!texObj)
1084       return;
1085
1086    _mesa_texture_parameterIiv(ctx, texObj, pname, params, false);
1087 }
1088
1089 /**
1090  * Set tex parameter to unsigned integer value(s).  Primarily intended to set
1091  * uint-valued texture border color (for integer-valued textures).
1092  * New in GL 3.0
1093  */
1094 void GLAPIENTRY
1095 _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
1096 {
1097    struct gl_texture_object *texObj;
1098    GET_CURRENT_CONTEXT(ctx);
1099
1100    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1101    if (!texObj)
1102       return;
1103
1104    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, false);
1105 }
1106
1107
1108 void GLAPIENTRY
1109 _mesa_TextureParameterfv(GLuint texture, GLenum pname, const GLfloat *params)
1110 {
1111    struct gl_texture_object *texObj;
1112    GET_CURRENT_CONTEXT(ctx);
1113
1114    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1115    if (!texObj) {
1116       /* User passed a non-generated name. */
1117       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfv(texture)");
1118       return;
1119    }
1120
1121    _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
1122 }
1123
1124 void GLAPIENTRY
1125 _mesa_TextureParameterf(GLuint texture, GLenum pname, GLfloat param)
1126 {
1127    struct gl_texture_object *texObj;
1128    GET_CURRENT_CONTEXT(ctx);
1129
1130    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1131    if (!texObj) {
1132       /* User passed a non-generated name. */
1133       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterf(texture)");
1134       return;
1135    }
1136
1137    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1138 }
1139
1140 void GLAPIENTRY
1141 _mesa_TextureParameteri(GLuint texture, GLenum pname, GLint param)
1142 {
1143    struct gl_texture_object *texObj;
1144    GET_CURRENT_CONTEXT(ctx);
1145
1146    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1147    if (!texObj) {
1148       /* User passed a non-generated name. */
1149       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteri(texture)");
1150       return;
1151    }
1152
1153    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1154 }
1155
1156 void GLAPIENTRY
1157 _mesa_TextureParameteriv(GLuint texture, GLenum pname,
1158                          const GLint *params)
1159 {
1160    struct gl_texture_object *texObj;
1161    GET_CURRENT_CONTEXT(ctx);
1162
1163    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1164    if (!texObj) {
1165       /* User passed a non-generated name. */
1166       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteriv(texture)");
1167       return;
1168    }
1169
1170    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1171 }
1172
1173
1174 void GLAPIENTRY
1175 _mesa_TextureParameterIiv(GLuint texture, GLenum pname, const GLint *params)
1176 {
1177    struct gl_texture_object *texObj;
1178    GET_CURRENT_CONTEXT(ctx);
1179
1180    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1181    if (!texObj) {
1182       /* User passed a non-generated name. */
1183       _mesa_error(ctx, GL_INVALID_OPERATION,
1184                   "glTextureParameterIiv(texture)");
1185       return;
1186    }
1187
1188    _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
1189 }
1190
1191 void GLAPIENTRY
1192 _mesa_TextureParameterIuiv(GLuint texture, GLenum pname, const GLuint *params)
1193 {
1194    struct gl_texture_object *texObj;
1195    GET_CURRENT_CONTEXT(ctx);
1196
1197    texObj = get_texobj_by_name(ctx, texture, GL_FALSE);
1198    if (!texObj) {
1199       /* User passed a non-generated name. */
1200       _mesa_error(ctx, GL_INVALID_OPERATION,
1201                   "glTextureParameterIuiv(texture)");
1202       return;
1203    }
1204
1205    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
1206 }
1207
1208 GLboolean
1209 _mesa_legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target,
1210                                            bool dsa)
1211 {
1212    /* Common targets for desktop GL and GLES 3.1. */
1213    switch (target) {
1214    case GL_TEXTURE_2D:
1215    case GL_TEXTURE_3D:
1216       return GL_TRUE;
1217    case GL_TEXTURE_2D_ARRAY_EXT:
1218       return ctx->Extensions.EXT_texture_array;
1219    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1220    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1221    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1222    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1223    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1224    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1225       return ctx->Extensions.ARB_texture_cube_map;
1226    case GL_TEXTURE_2D_MULTISAMPLE:
1227    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1228       return ctx->Extensions.ARB_texture_multisample;
1229    case GL_TEXTURE_BUFFER:
1230       /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts,
1231        * but not in earlier versions that expose ARB_texture_buffer_object.
1232        *
1233        * From the ARB_texture_buffer_object spec:
1234        * "(7) Do buffer textures support texture parameters (TexParameter) or
1235        *      queries (GetTexParameter, GetTexLevelParameter, GetTexImage)?
1236        *
1237        *    RESOLVED:  No. [...] Note that the spec edits above don't add
1238        *    explicit error language for any of these cases.  That is because
1239        *    each of the functions enumerate the set of valid <target>
1240        *    parameters.  Not editing the spec to allow TEXTURE_BUFFER_ARB in
1241        *    these cases means that target is not legal, and an INVALID_ENUM
1242        *    error should be generated."
1243        *
1244        * From the OpenGL 3.1 spec:
1245        * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
1246        */
1247       return (ctx->API == API_OPENGL_CORE && ctx->Version >= 31) ||
1248          _mesa_has_OES_texture_buffer(ctx);
1249    case GL_TEXTURE_CUBE_MAP_ARRAY:
1250       return _mesa_has_texture_cube_map_array(ctx);
1251    }
1252
1253    if (!_mesa_is_desktop_gl(ctx))
1254       return GL_FALSE;
1255
1256    /* Rest of the desktop GL targets. */
1257    switch (target) {
1258    case GL_TEXTURE_1D:
1259    case GL_PROXY_TEXTURE_1D:
1260    case GL_PROXY_TEXTURE_2D:
1261    case GL_PROXY_TEXTURE_3D:
1262       return GL_TRUE;
1263    case GL_PROXY_TEXTURE_CUBE_MAP:
1264       return ctx->Extensions.ARB_texture_cube_map;
1265    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1266       return ctx->Extensions.ARB_texture_cube_map_array;
1267    case GL_TEXTURE_RECTANGLE_NV:
1268    case GL_PROXY_TEXTURE_RECTANGLE_NV:
1269       return ctx->Extensions.NV_texture_rectangle;
1270    case GL_TEXTURE_1D_ARRAY_EXT:
1271    case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1272    case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1273       return ctx->Extensions.EXT_texture_array;
1274    case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1275    case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1276       return ctx->Extensions.ARB_texture_multisample;
1277
1278    /*  This is a valid target for dsa, but the OpenGL 4.5 core spec
1279     *  (30.10.2014) Section 8.11 Texture Queries says:
1280     *       "For GetTextureLevelParameter* only, texture may also be a cube
1281     *       map texture object.  In this case the query is always performed
1282     *       for face zero (the TEXTURE_CUBE_MAP_POSITIVE_X face), since there
1283     *       is no way to specify another face."
1284     */
1285    case GL_TEXTURE_CUBE_MAP:
1286       return dsa;
1287    default:
1288       return GL_FALSE;
1289    }
1290 }
1291
1292
1293 static void
1294 get_tex_level_parameter_image(struct gl_context *ctx,
1295                               const struct gl_texture_object *texObj,
1296                               GLenum target, GLint level,
1297                               GLenum pname, GLint *params,
1298                               bool dsa)
1299 {
1300    const struct gl_texture_image *img = NULL;
1301    struct gl_texture_image dummy_image;
1302    mesa_format texFormat;
1303    const char *suffix = dsa ? "ture" : "";
1304
1305    img = _mesa_select_tex_image(texObj, target, level);
1306    if (!img || img->TexFormat == MESA_FORMAT_NONE) {
1307       /* In case of undefined texture image return the default values.
1308        *
1309        * From OpenGL 4.0 spec, page 398:
1310        *    "The initial internal format of a texel array is RGBA
1311        *     instead of 1. TEXTURE_COMPONENTS is deprecated; always
1312        *     use TEXTURE_INTERNAL_FORMAT."
1313        */
1314       memset(&dummy_image, 0, sizeof(dummy_image));
1315       dummy_image.TexFormat = MESA_FORMAT_NONE;
1316       dummy_image.InternalFormat = GL_RGBA;
1317       dummy_image._BaseFormat = GL_NONE;
1318       dummy_image.FixedSampleLocations = GL_TRUE;
1319
1320       img = &dummy_image;
1321    }
1322
1323    texFormat = img->TexFormat;
1324
1325    switch (pname) {
1326       case GL_TEXTURE_WIDTH:
1327          *params = img->Width;
1328          break;
1329       case GL_TEXTURE_HEIGHT:
1330          *params = img->Height;
1331          break;
1332       case GL_TEXTURE_DEPTH:
1333          *params = img->Depth;
1334          break;
1335       case GL_TEXTURE_INTERNAL_FORMAT:
1336          if (_mesa_is_format_compressed(texFormat)) {
1337             /* need to return the actual compressed format */
1338             *params = _mesa_compressed_format_to_glenum(ctx, texFormat);
1339          }
1340          else {
1341             /* If the true internal format is not compressed but the user
1342              * requested a generic compressed format, we have to return the
1343              * generic base format that matches.
1344              *
1345              * From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec:
1346              *
1347              *     "If no specific compressed format is available,
1348              *     internalformat is instead replaced by the corresponding base
1349              *     internal format."
1350              *
1351              * Otherwise just return the user's requested internal format
1352              */
1353             const GLenum f =
1354                _mesa_gl_compressed_format_base_format(img->InternalFormat);
1355
1356             *params = (f != 0) ? f : img->InternalFormat;
1357          }
1358          break;
1359       case GL_TEXTURE_BORDER:
1360          if (ctx->API != API_OPENGL_COMPAT)
1361             goto invalid_pname;
1362          *params = img->Border;
1363          break;
1364       case GL_TEXTURE_RED_SIZE:
1365       case GL_TEXTURE_GREEN_SIZE:
1366       case GL_TEXTURE_BLUE_SIZE:
1367       case GL_TEXTURE_ALPHA_SIZE:
1368          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1369             *params = _mesa_get_format_bits(texFormat, pname);
1370          else
1371             *params = 0;
1372          break;
1373       case GL_TEXTURE_INTENSITY_SIZE:
1374       case GL_TEXTURE_LUMINANCE_SIZE:
1375          if (ctx->API != API_OPENGL_COMPAT)
1376             goto invalid_pname;
1377          if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) {
1378             *params = _mesa_get_format_bits(texFormat, pname);
1379             if (*params == 0) {
1380                /* intensity or luminance is probably stored as RGB[A] */
1381                *params = MIN2(_mesa_get_format_bits(texFormat,
1382                                                     GL_TEXTURE_RED_SIZE),
1383                               _mesa_get_format_bits(texFormat,
1384                                                     GL_TEXTURE_GREEN_SIZE));
1385             }
1386          }
1387          else {
1388             *params = 0;
1389          }
1390          break;
1391       case GL_TEXTURE_DEPTH_SIZE_ARB:
1392          if (!ctx->Extensions.ARB_depth_texture)
1393             goto invalid_pname;
1394          *params = _mesa_get_format_bits(texFormat, pname);
1395          break;
1396       case GL_TEXTURE_STENCIL_SIZE:
1397          *params = _mesa_get_format_bits(texFormat, pname);
1398          break;
1399       case GL_TEXTURE_SHARED_SIZE:
1400          if (ctx->Version < 30 &&
1401              !ctx->Extensions.EXT_texture_shared_exponent)
1402             goto invalid_pname;
1403          *params = texFormat == MESA_FORMAT_R9G9B9E5_FLOAT ? 5 : 0;
1404          break;
1405
1406       /* GL_ARB_texture_compression */
1407       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1408          if (_mesa_is_format_compressed(texFormat) &&
1409              !_mesa_is_proxy_texture(target)) {
1410             *params = _mesa_format_image_size(texFormat, img->Width,
1411                                               img->Height, img->Depth);
1412     }
1413     else {
1414        _mesa_error(ctx, GL_INVALID_OPERATION,
1415                    "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1416                    _mesa_enum_to_string(pname));
1417     }
1418          break;
1419       case GL_TEXTURE_COMPRESSED:
1420          *params = (GLint) _mesa_is_format_compressed(texFormat);
1421          break;
1422
1423       /* GL_ARB_texture_float */
1424       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1425       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1426          if (ctx->API != API_OPENGL_COMPAT)
1427             goto invalid_pname;
1428          /* FALLTHROUGH */
1429       case GL_TEXTURE_RED_TYPE_ARB:
1430       case GL_TEXTURE_GREEN_TYPE_ARB:
1431       case GL_TEXTURE_BLUE_TYPE_ARB:
1432       case GL_TEXTURE_ALPHA_TYPE_ARB:
1433       case GL_TEXTURE_DEPTH_TYPE_ARB:
1434          if (!ctx->Extensions.ARB_texture_float)
1435             goto invalid_pname;
1436          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1437             *params = _mesa_get_format_datatype(texFormat);
1438          else
1439             *params = GL_NONE;
1440          break;
1441
1442       /* GL_ARB_texture_multisample */
1443       case GL_TEXTURE_SAMPLES:
1444          if (!ctx->Extensions.ARB_texture_multisample)
1445             goto invalid_pname;
1446          *params = img->NumSamples;
1447          break;
1448
1449       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1450          if (!ctx->Extensions.ARB_texture_multisample)
1451             goto invalid_pname;
1452          *params = img->FixedSampleLocations;
1453          break;
1454
1455       /* There is never a buffer data store here, but these pnames still have
1456        * to work.
1457        */
1458
1459       /* GL_ARB_texture_buffer_object */
1460       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1461          if (!ctx->Extensions.ARB_texture_buffer_object)
1462             goto invalid_pname;
1463          *params = 0;
1464          break;
1465
1466       /* GL_ARB_texture_buffer_range */
1467       case GL_TEXTURE_BUFFER_OFFSET:
1468          if (!ctx->Extensions.ARB_texture_buffer_range)
1469             goto invalid_pname;
1470          *params = 0;
1471          break;
1472       case GL_TEXTURE_BUFFER_SIZE:
1473          if (!ctx->Extensions.ARB_texture_buffer_range)
1474             goto invalid_pname;
1475          *params = 0;
1476          break;
1477
1478       default:
1479          goto invalid_pname;
1480    }
1481
1482    /* no error if we get here */
1483    return;
1484
1485 invalid_pname:
1486    _mesa_error(ctx, GL_INVALID_ENUM,
1487                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1488                _mesa_enum_to_string(pname));
1489 }
1490
1491
1492 /**
1493  * Handle a glGetTexLevelParamteriv() call for a texture buffer.
1494  */
1495 static void
1496 get_tex_level_parameter_buffer(struct gl_context *ctx,
1497                                const struct gl_texture_object *texObj,
1498                                GLenum pname, GLint *params, bool dsa)
1499 {
1500    const struct gl_buffer_object *bo = texObj->BufferObject;
1501    mesa_format texFormat = texObj->_BufferObjectFormat;
1502    int bytes = MAX2(1, _mesa_get_format_bytes(texFormat));
1503    GLenum internalFormat = texObj->BufferObjectFormat;
1504    GLenum baseFormat = _mesa_get_format_base_format(texFormat);
1505    const char *suffix = dsa ? "ture" : "";
1506
1507    assert(texObj->Target == GL_TEXTURE_BUFFER);
1508
1509    if (!bo) {
1510       /* undefined texture buffer object */
1511       switch (pname) {
1512       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1513          *params = GL_TRUE;
1514          break;
1515       case GL_TEXTURE_INTERNAL_FORMAT:
1516          *params = internalFormat;
1517          break;
1518       default:
1519          *params = 0;
1520          break;
1521       }
1522       return;
1523    }
1524
1525    switch (pname) {
1526       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1527          *params = bo->Name;
1528          break;
1529       case GL_TEXTURE_WIDTH:
1530          *params = ((texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize)
1531             / bytes;
1532          break;
1533       case GL_TEXTURE_HEIGHT:
1534       case GL_TEXTURE_DEPTH:
1535          *params = 1;
1536          break;
1537       case GL_TEXTURE_BORDER:
1538       case GL_TEXTURE_SHARED_SIZE:
1539       case GL_TEXTURE_COMPRESSED:
1540          *params = 0;
1541          break;
1542       case GL_TEXTURE_INTERNAL_FORMAT:
1543          *params = internalFormat;
1544          break;
1545       case GL_TEXTURE_RED_SIZE:
1546       case GL_TEXTURE_GREEN_SIZE:
1547       case GL_TEXTURE_BLUE_SIZE:
1548       case GL_TEXTURE_ALPHA_SIZE:
1549          if (_mesa_base_format_has_channel(baseFormat, pname))
1550             *params = _mesa_get_format_bits(texFormat, pname);
1551          else
1552             *params = 0;
1553          break;
1554       case GL_TEXTURE_INTENSITY_SIZE:
1555       case GL_TEXTURE_LUMINANCE_SIZE:
1556          if (_mesa_base_format_has_channel(baseFormat, pname)) {
1557             *params = _mesa_get_format_bits(texFormat, pname);
1558             if (*params == 0) {
1559                /* intensity or luminance is probably stored as RGB[A] */
1560                *params = MIN2(_mesa_get_format_bits(texFormat,
1561                                                     GL_TEXTURE_RED_SIZE),
1562                               _mesa_get_format_bits(texFormat,
1563                                                     GL_TEXTURE_GREEN_SIZE));
1564             }
1565          } else {
1566             *params = 0;
1567          }
1568          break;
1569       case GL_TEXTURE_DEPTH_SIZE_ARB:
1570       case GL_TEXTURE_STENCIL_SIZE_EXT:
1571          *params = _mesa_get_format_bits(texFormat, pname);
1572          break;
1573
1574       /* GL_ARB_texture_buffer_range */
1575       case GL_TEXTURE_BUFFER_OFFSET:
1576          if (!ctx->Extensions.ARB_texture_buffer_range)
1577             goto invalid_pname;
1578          *params = texObj->BufferOffset;
1579          break;
1580       case GL_TEXTURE_BUFFER_SIZE:
1581          if (!ctx->Extensions.ARB_texture_buffer_range)
1582             goto invalid_pname;
1583          *params = (texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize;
1584          break;
1585
1586       /* GL_ARB_texture_multisample */
1587       case GL_TEXTURE_SAMPLES:
1588          if (!ctx->Extensions.ARB_texture_multisample)
1589             goto invalid_pname;
1590          *params = 0;
1591          break;
1592
1593       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1594          if (!ctx->Extensions.ARB_texture_multisample)
1595             goto invalid_pname;
1596          *params = GL_TRUE;
1597          break;
1598
1599       /* GL_ARB_texture_compression */
1600       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1601          /* Always illegal for GL_TEXTURE_BUFFER */
1602          _mesa_error(ctx, GL_INVALID_OPERATION,
1603                      "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1604                      _mesa_enum_to_string(pname));
1605          break;
1606
1607       /* GL_ARB_texture_float */
1608       case GL_TEXTURE_RED_TYPE_ARB:
1609       case GL_TEXTURE_GREEN_TYPE_ARB:
1610       case GL_TEXTURE_BLUE_TYPE_ARB:
1611       case GL_TEXTURE_ALPHA_TYPE_ARB:
1612       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1613       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1614       case GL_TEXTURE_DEPTH_TYPE_ARB:
1615          if (!ctx->Extensions.ARB_texture_float)
1616             goto invalid_pname;
1617          if (_mesa_base_format_has_channel(baseFormat, pname))
1618             *params = _mesa_get_format_datatype(texFormat);
1619          else
1620             *params = GL_NONE;
1621          break;
1622
1623       default:
1624          goto invalid_pname;
1625    }
1626
1627    /* no error if we get here */
1628    return;
1629
1630 invalid_pname:
1631    _mesa_error(ctx, GL_INVALID_ENUM,
1632                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1633                _mesa_enum_to_string(pname));
1634 }
1635
1636 static bool
1637 valid_tex_level_parameteriv_target(struct gl_context *ctx, GLenum target,
1638                                    bool dsa)
1639 {
1640    const char *suffix = dsa ? "ture" : "";
1641    if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, dsa)) {
1642       _mesa_error(ctx, GL_INVALID_ENUM,
1643                   "glGetTex%sLevelParameter[if]v(target=%s)", suffix,
1644                   _mesa_enum_to_string(target));
1645       return false;
1646    }
1647    return true;
1648 }
1649
1650 /**
1651  * This isn't exposed to the rest of the driver because it is a part of the
1652  * OpenGL API that is rarely used.
1653  */
1654 static void
1655 get_tex_level_parameteriv(struct gl_context *ctx,
1656                           struct gl_texture_object *texObj,
1657                           GLenum target, GLint level,
1658                           GLenum pname, GLint *params,
1659                           bool dsa)
1660 {
1661    GLint maxLevels;
1662    const char *suffix = dsa ? "ture" : "";
1663
1664    /* Check for errors */
1665    if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
1666       _mesa_error(ctx, GL_INVALID_OPERATION,
1667                   "glGetTex%sLevelParameter[if]v("
1668                   "current unit >= max combined texture units)", suffix);
1669       return;
1670    }
1671
1672    maxLevels = _mesa_max_texture_levels(ctx, target);
1673    assert(maxLevels != 0);
1674
1675    if (level < 0 || level >= maxLevels) {
1676       _mesa_error(ctx, GL_INVALID_VALUE,
1677                   "glGetTex%sLevelParameter[if]v(level out of range)", suffix);
1678       return;
1679    }
1680
1681    /* Get the level parameter */
1682    if (target == GL_TEXTURE_BUFFER) {
1683       get_tex_level_parameter_buffer(ctx, texObj, pname, params, dsa);
1684    }
1685    else {
1686       get_tex_level_parameter_image(ctx, texObj, target,
1687                                     level, pname, params, dsa);
1688    }
1689 }
1690
1691 void GLAPIENTRY
1692 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
1693                               GLenum pname, GLfloat *params )
1694 {
1695    struct gl_texture_object *texObj;
1696    GLint iparam;
1697    GET_CURRENT_CONTEXT(ctx);
1698
1699    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1700       return;
1701
1702    texObj = _mesa_get_current_tex_object(ctx, target);
1703    if (!texObj)
1704       return;
1705
1706    get_tex_level_parameteriv(ctx, texObj, target, level,
1707                              pname, &iparam, false);
1708
1709    *params = (GLfloat) iparam;
1710 }
1711
1712 void GLAPIENTRY
1713 _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
1714                               GLenum pname, GLint *params )
1715 {
1716    struct gl_texture_object *texObj;
1717    GET_CURRENT_CONTEXT(ctx);
1718
1719    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1720       return;
1721
1722    texObj = _mesa_get_current_tex_object(ctx, target);
1723    if (!texObj)
1724       return;
1725
1726    get_tex_level_parameteriv(ctx, texObj, target, level,
1727                              pname, params, false);
1728 }
1729
1730 void GLAPIENTRY
1731 _mesa_GetTextureLevelParameterfv(GLuint texture, GLint level,
1732                                  GLenum pname, GLfloat *params)
1733 {
1734    struct gl_texture_object *texObj;
1735    GLint iparam;
1736    GET_CURRENT_CONTEXT(ctx);
1737
1738    texObj = _mesa_lookup_texture_err(ctx, texture,
1739                                      "glGetTextureLevelParameterfv");
1740    if (!texObj)
1741       return;
1742
1743    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1744       return;
1745
1746    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1747                              pname, &iparam, true);
1748
1749    *params = (GLfloat) iparam;
1750 }
1751
1752 void GLAPIENTRY
1753 _mesa_GetTextureLevelParameteriv(GLuint texture, GLint level,
1754                                  GLenum pname, GLint *params)
1755 {
1756    struct gl_texture_object *texObj;
1757    GET_CURRENT_CONTEXT(ctx);
1758
1759    texObj = _mesa_lookup_texture_err(ctx, texture,
1760                                      "glGetTextureLevelParameteriv");
1761    if (!texObj)
1762       return;
1763
1764    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1765       return;
1766
1767    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1768                              pname, params, true);
1769 }
1770
1771 /**
1772  * This isn't exposed to the rest of the driver because it is a part of the
1773  * OpenGL API that is rarely used.
1774  */
1775 static void
1776 get_tex_parameterfv(struct gl_context *ctx,
1777                     struct gl_texture_object *obj,
1778                     GLenum pname, GLfloat *params, bool dsa)
1779 {
1780    _mesa_lock_context_textures(ctx);
1781    switch (pname) {
1782       case GL_TEXTURE_MAG_FILTER:
1783          *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
1784          break;
1785       case GL_TEXTURE_MIN_FILTER:
1786          *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
1787          break;
1788       case GL_TEXTURE_WRAP_S:
1789          *params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
1790          break;
1791       case GL_TEXTURE_WRAP_T:
1792          *params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
1793          break;
1794       case GL_TEXTURE_WRAP_R:
1795          *params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
1796          break;
1797       case GL_TEXTURE_BORDER_COLOR:
1798          if (ctx->API == API_OPENGLES ||
1799              !ctx->Extensions.ARB_texture_border_clamp)
1800             goto invalid_pname;
1801
1802          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1803             _mesa_update_state_locked(ctx);
1804          if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
1805             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
1806             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
1807             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
1808             params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
1809          }
1810          else {
1811             params[0] = obj->Sampler.BorderColor.f[0];
1812             params[1] = obj->Sampler.BorderColor.f[1];
1813             params[2] = obj->Sampler.BorderColor.f[2];
1814             params[3] = obj->Sampler.BorderColor.f[3];
1815          }
1816          break;
1817       case GL_TEXTURE_RESIDENT:
1818          if (ctx->API != API_OPENGL_COMPAT)
1819             goto invalid_pname;
1820
1821          *params = 1.0F;
1822          break;
1823       case GL_TEXTURE_PRIORITY:
1824          if (ctx->API != API_OPENGL_COMPAT)
1825             goto invalid_pname;
1826
1827          *params = obj->Priority;
1828          break;
1829       case GL_TEXTURE_MIN_LOD:
1830          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1831             goto invalid_pname;
1832
1833          *params = obj->Sampler.MinLod;
1834          break;
1835       case GL_TEXTURE_MAX_LOD:
1836          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1837             goto invalid_pname;
1838
1839          *params = obj->Sampler.MaxLod;
1840          break;
1841       case GL_TEXTURE_BASE_LEVEL:
1842          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1843             goto invalid_pname;
1844
1845          *params = (GLfloat) obj->BaseLevel;
1846          break;
1847       case GL_TEXTURE_MAX_LEVEL:
1848          *params = (GLfloat) obj->MaxLevel;
1849          break;
1850       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1851          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
1852             goto invalid_pname;
1853          *params = obj->Sampler.MaxAnisotropy;
1854          break;
1855       case GL_GENERATE_MIPMAP_SGIS:
1856          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1857             goto invalid_pname;
1858
1859          *params = (GLfloat) obj->GenerateMipmap;
1860          break;
1861       case GL_TEXTURE_COMPARE_MODE_ARB:
1862          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
1863              && !_mesa_is_gles3(ctx))
1864             goto invalid_pname;
1865          *params = (GLfloat) obj->Sampler.CompareMode;
1866          break;
1867       case GL_TEXTURE_COMPARE_FUNC_ARB:
1868          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
1869              && !_mesa_is_gles3(ctx))
1870             goto invalid_pname;
1871          *params = (GLfloat) obj->Sampler.CompareFunc;
1872          break;
1873       case GL_DEPTH_TEXTURE_MODE_ARB:
1874          /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has
1875           * never existed in OpenGL ES.
1876           */
1877          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
1878             goto invalid_pname;
1879          *params = (GLfloat) obj->DepthMode;
1880          break;
1881       case GL_DEPTH_STENCIL_TEXTURE_MODE:
1882          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
1883             goto invalid_pname;
1884          *params = (GLfloat)
1885             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
1886          break;
1887       case GL_TEXTURE_LOD_BIAS:
1888          if (_mesa_is_gles(ctx))
1889             goto invalid_pname;
1890
1891          *params = obj->Sampler.LodBias;
1892          break;
1893       case GL_TEXTURE_CROP_RECT_OES:
1894          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
1895             goto invalid_pname;
1896
1897          params[0] = (GLfloat) obj->CropRect[0];
1898          params[1] = (GLfloat) obj->CropRect[1];
1899          params[2] = (GLfloat) obj->CropRect[2];
1900          params[3] = (GLfloat) obj->CropRect[3];
1901          break;
1902
1903       case GL_TEXTURE_SWIZZLE_R_EXT:
1904       case GL_TEXTURE_SWIZZLE_G_EXT:
1905       case GL_TEXTURE_SWIZZLE_B_EXT:
1906       case GL_TEXTURE_SWIZZLE_A_EXT:
1907          if ((!_mesa_is_desktop_gl(ctx)
1908               || !ctx->Extensions.EXT_texture_swizzle)
1909              && !_mesa_is_gles3(ctx))
1910             goto invalid_pname;
1911          *params = (GLfloat) obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
1912          break;
1913
1914       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
1915          if ((!_mesa_is_desktop_gl(ctx)
1916               || !ctx->Extensions.EXT_texture_swizzle)
1917              && !_mesa_is_gles3(ctx)) {
1918             goto invalid_pname;
1919          }
1920          else {
1921             GLuint comp;
1922             for (comp = 0; comp < 4; comp++) {
1923                params[comp] = (GLfloat) obj->Swizzle[comp];
1924             }
1925          }
1926          break;
1927
1928       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1929          if (!_mesa_is_desktop_gl(ctx)
1930              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
1931             goto invalid_pname;
1932          *params = (GLfloat) obj->Sampler.CubeMapSeamless;
1933          break;
1934
1935       case GL_TEXTURE_IMMUTABLE_FORMAT:
1936          *params = (GLfloat) obj->Immutable;
1937          break;
1938
1939       case GL_TEXTURE_IMMUTABLE_LEVELS:
1940          if (_mesa_is_gles3(ctx) ||
1941              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
1942             *params = (GLfloat) obj->ImmutableLevels;
1943          else
1944             goto invalid_pname;
1945          break;
1946
1947       case GL_TEXTURE_VIEW_MIN_LEVEL:
1948          if (!ctx->Extensions.ARB_texture_view)
1949             goto invalid_pname;
1950          *params = (GLfloat) obj->MinLevel;
1951          break;
1952
1953       case GL_TEXTURE_VIEW_NUM_LEVELS:
1954          if (!ctx->Extensions.ARB_texture_view)
1955             goto invalid_pname;
1956          *params = (GLfloat) obj->NumLevels;
1957          break;
1958
1959       case GL_TEXTURE_VIEW_MIN_LAYER:
1960          if (!ctx->Extensions.ARB_texture_view)
1961             goto invalid_pname;
1962          *params = (GLfloat) obj->MinLayer;
1963          break;
1964
1965       case GL_TEXTURE_VIEW_NUM_LAYERS:
1966          if (!ctx->Extensions.ARB_texture_view)
1967             goto invalid_pname;
1968          *params = (GLfloat) obj->NumLayers;
1969          break;
1970
1971       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
1972          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
1973             goto invalid_pname;
1974          *params = (GLfloat) obj->RequiredTextureImageUnits;
1975          break;
1976
1977       case GL_TEXTURE_SRGB_DECODE_EXT:
1978          if (!ctx->Extensions.EXT_texture_sRGB_decode)
1979             goto invalid_pname;
1980          *params = (GLfloat) obj->Sampler.sRGBDecode;
1981          break;
1982
1983       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
1984          if (!ctx->Extensions.ARB_shader_image_load_store)
1985             goto invalid_pname;
1986          *params = (GLfloat) obj->ImageFormatCompatibilityType;
1987          break;
1988
1989       case GL_TEXTURE_TARGET:
1990          if (ctx->API != API_OPENGL_CORE)
1991             goto invalid_pname;
1992          *params = ENUM_TO_FLOAT(obj->Target);
1993          break;
1994
1995       default:
1996          goto invalid_pname;
1997    }
1998
1999    /* no error if we get here */
2000    _mesa_unlock_context_textures(ctx);
2001    return;
2002
2003 invalid_pname:
2004    _mesa_unlock_context_textures(ctx);
2005    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameterfv(pname=0x%x)",
2006                dsa ? "ture" : "", pname);
2007 }
2008
2009
2010 static void
2011 get_tex_parameteriv(struct gl_context *ctx,
2012                     struct gl_texture_object *obj,
2013                     GLenum pname, GLint *params, bool dsa)
2014 {
2015    _mesa_lock_texture(ctx, obj);
2016    switch (pname) {
2017       case GL_TEXTURE_MAG_FILTER:
2018          *params = (GLint) obj->Sampler.MagFilter;
2019          break;
2020       case GL_TEXTURE_MIN_FILTER:
2021          *params = (GLint) obj->Sampler.MinFilter;
2022          break;
2023       case GL_TEXTURE_WRAP_S:
2024          *params = (GLint) obj->Sampler.WrapS;
2025          break;
2026       case GL_TEXTURE_WRAP_T:
2027          *params = (GLint) obj->Sampler.WrapT;
2028          break;
2029       case GL_TEXTURE_WRAP_R:
2030          *params = (GLint) obj->Sampler.WrapR;
2031          break;
2032       case GL_TEXTURE_BORDER_COLOR:
2033          if (ctx->API == API_OPENGLES ||
2034              !ctx->Extensions.ARB_texture_border_clamp)
2035             goto invalid_pname;
2036
2037          {
2038             GLfloat b[4];
2039             b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
2040             b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
2041             b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
2042             b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
2043             params[0] = FLOAT_TO_INT(b[0]);
2044             params[1] = FLOAT_TO_INT(b[1]);
2045             params[2] = FLOAT_TO_INT(b[2]);
2046             params[3] = FLOAT_TO_INT(b[3]);
2047          }
2048          break;
2049       case GL_TEXTURE_RESIDENT:
2050          if (ctx->API != API_OPENGL_COMPAT)
2051             goto invalid_pname;
2052
2053          *params = 1;
2054          break;
2055       case GL_TEXTURE_PRIORITY:
2056          if (ctx->API != API_OPENGL_COMPAT)
2057             goto invalid_pname;
2058
2059          *params = FLOAT_TO_INT(obj->Priority);
2060          break;
2061       case GL_TEXTURE_MIN_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.MinLod);
2068          break;
2069       case GL_TEXTURE_MAX_LOD:
2070          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2071             goto invalid_pname;
2072          /* GL spec 'Data Conversions' section specifies that floating-point
2073           * value in integer Get function is rounded to nearest integer
2074           */
2075          *params = IROUND(obj->Sampler.MaxLod);
2076          break;
2077       case GL_TEXTURE_BASE_LEVEL:
2078          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2079             goto invalid_pname;
2080
2081          *params = obj->BaseLevel;
2082          break;
2083       case GL_TEXTURE_MAX_LEVEL:
2084          *params = obj->MaxLevel;
2085          break;
2086       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
2087          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
2088             goto invalid_pname;
2089          /* GL spec 'Data Conversions' section specifies that floating-point
2090           * value in integer Get function is rounded to nearest integer
2091           */
2092          *params = IROUND(obj->Sampler.MaxAnisotropy);
2093          break;
2094       case GL_GENERATE_MIPMAP_SGIS:
2095          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
2096             goto invalid_pname;
2097
2098          *params = (GLint) obj->GenerateMipmap;
2099          break;
2100       case GL_TEXTURE_COMPARE_MODE_ARB:
2101          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2102              && !_mesa_is_gles3(ctx))
2103             goto invalid_pname;
2104          *params = (GLint) obj->Sampler.CompareMode;
2105          break;
2106       case GL_TEXTURE_COMPARE_FUNC_ARB:
2107          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2108              && !_mesa_is_gles3(ctx))
2109             goto invalid_pname;
2110          *params = (GLint) obj->Sampler.CompareFunc;
2111          break;
2112       case GL_DEPTH_TEXTURE_MODE_ARB:
2113          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
2114             goto invalid_pname;
2115          *params = (GLint) obj->DepthMode;
2116          break;
2117       case GL_DEPTH_STENCIL_TEXTURE_MODE:
2118          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
2119             goto invalid_pname;
2120          *params = (GLint)
2121             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
2122          break;
2123       case GL_TEXTURE_LOD_BIAS:
2124          if (_mesa_is_gles(ctx))
2125             goto invalid_pname;
2126
2127          /* GL spec 'Data Conversions' section specifies that floating-point
2128           * value in integer Get function is rounded to nearest integer
2129           */
2130          *params = IROUND(obj->Sampler.LodBias);
2131          break;
2132       case GL_TEXTURE_CROP_RECT_OES:
2133          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
2134             goto invalid_pname;
2135
2136          params[0] = obj->CropRect[0];
2137          params[1] = obj->CropRect[1];
2138          params[2] = obj->CropRect[2];
2139          params[3] = obj->CropRect[3];
2140          break;
2141       case GL_TEXTURE_SWIZZLE_R_EXT:
2142       case GL_TEXTURE_SWIZZLE_G_EXT:
2143       case GL_TEXTURE_SWIZZLE_B_EXT:
2144       case GL_TEXTURE_SWIZZLE_A_EXT:
2145          if ((!_mesa_is_desktop_gl(ctx)
2146               || !ctx->Extensions.EXT_texture_swizzle)
2147              && !_mesa_is_gles3(ctx))
2148             goto invalid_pname;
2149          *params = obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
2150          break;
2151
2152       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
2153          if ((!_mesa_is_desktop_gl(ctx)
2154               || !ctx->Extensions.EXT_texture_swizzle)
2155              && !_mesa_is_gles3(ctx))
2156             goto invalid_pname;
2157          COPY_4V(params, obj->Swizzle);
2158          break;
2159
2160       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
2161          if (!_mesa_is_desktop_gl(ctx)
2162              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
2163             goto invalid_pname;
2164          *params = (GLint) obj->Sampler.CubeMapSeamless;
2165          break;
2166
2167       case GL_TEXTURE_IMMUTABLE_FORMAT:
2168          *params = (GLint) obj->Immutable;
2169          break;
2170
2171       case GL_TEXTURE_IMMUTABLE_LEVELS:
2172          if (_mesa_is_gles3(ctx) ||
2173              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
2174             *params = obj->ImmutableLevels;
2175          else
2176             goto invalid_pname;
2177          break;
2178
2179       case GL_TEXTURE_VIEW_MIN_LEVEL:
2180          if (!ctx->Extensions.ARB_texture_view)
2181             goto invalid_pname;
2182          *params = (GLint) obj->MinLevel;
2183          break;
2184
2185       case GL_TEXTURE_VIEW_NUM_LEVELS:
2186          if (!ctx->Extensions.ARB_texture_view)
2187             goto invalid_pname;
2188          *params = (GLint) obj->NumLevels;
2189          break;
2190
2191       case GL_TEXTURE_VIEW_MIN_LAYER:
2192          if (!ctx->Extensions.ARB_texture_view)
2193             goto invalid_pname;
2194          *params = (GLint) obj->MinLayer;
2195          break;
2196
2197       case GL_TEXTURE_VIEW_NUM_LAYERS:
2198          if (!ctx->Extensions.ARB_texture_view)
2199             goto invalid_pname;
2200          *params = (GLint) obj->NumLayers;
2201          break;
2202
2203       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
2204          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
2205             goto invalid_pname;
2206          *params = obj->RequiredTextureImageUnits;
2207          break;
2208
2209       case GL_TEXTURE_SRGB_DECODE_EXT:
2210          if (!ctx->Extensions.EXT_texture_sRGB_decode)
2211             goto invalid_pname;
2212          *params = obj->Sampler.sRGBDecode;
2213          break;
2214
2215       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2216          if (!ctx->Extensions.ARB_shader_image_load_store)
2217             goto invalid_pname;
2218          *params = obj->ImageFormatCompatibilityType;
2219          break;
2220
2221       case GL_TEXTURE_TARGET:
2222          if (ctx->API != API_OPENGL_CORE)
2223             goto invalid_pname;
2224          *params = (GLint) obj->Target;
2225          break;
2226
2227       default:
2228          goto invalid_pname;
2229    }
2230
2231    /* no error if we get here */
2232    _mesa_unlock_texture(ctx, obj);
2233    return;
2234
2235 invalid_pname:
2236    _mesa_unlock_texture(ctx, obj);
2237    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameteriv(pname=0x%x)",
2238                dsa ? "ture" : "", pname);
2239 }
2240
2241 static void
2242 get_tex_parameterIiv(struct gl_context *ctx,
2243                      struct gl_texture_object *obj,
2244                      GLenum pname, GLint *params, bool dsa)
2245 {
2246    switch (pname) {
2247    case GL_TEXTURE_BORDER_COLOR:
2248       COPY_4V(params, obj->Sampler.BorderColor.i);
2249       break;
2250    default:
2251       get_tex_parameteriv(ctx, obj, pname, params, dsa);
2252    }
2253 }
2254
2255 static void
2256 get_tex_parameterIuiv(struct gl_context *ctx,
2257                       struct gl_texture_object *obj,
2258                       GLenum pname, GLuint *params, bool dsa)
2259 {
2260    switch (pname) {
2261    case GL_TEXTURE_BORDER_COLOR:
2262       COPY_4V(params, obj->Sampler.BorderColor.i);
2263       break;
2264    default:
2265       {
2266          GLint ip[4];
2267          get_tex_parameteriv(ctx, obj, pname, ip, dsa);
2268          params[0] = ip[0];
2269          if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT ||
2270              pname == GL_TEXTURE_CROP_RECT_OES) {
2271             params[1] = ip[1];
2272             params[2] = ip[2];
2273             params[3] = ip[3];
2274          }
2275       }
2276    }
2277 }
2278
2279 void GLAPIENTRY
2280 _mesa_GetTexParameterfv(GLenum target, GLenum pname, GLfloat *params)
2281 {
2282    struct gl_texture_object *obj;
2283    GET_CURRENT_CONTEXT(ctx);
2284
2285    obj = get_texobj_by_target(ctx, target, GL_TRUE);
2286    if (!obj)
2287       return;
2288
2289    get_tex_parameterfv(ctx, obj, pname, params, false);
2290 }
2291
2292 void GLAPIENTRY
2293 _mesa_GetTexParameteriv(GLenum target, GLenum pname, GLint *params)
2294 {
2295    struct gl_texture_object *obj;
2296    GET_CURRENT_CONTEXT(ctx);
2297
2298    obj = get_texobj_by_target(ctx, target, GL_TRUE);
2299    if (!obj)
2300       return;
2301
2302    get_tex_parameteriv(ctx, obj, pname, params, false);
2303 }
2304
2305 /** New in GL 3.0 */
2306 void GLAPIENTRY
2307 _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
2308 {
2309    struct gl_texture_object *texObj;
2310    GET_CURRENT_CONTEXT(ctx);
2311
2312    texObj = get_texobj_by_target(ctx, target, GL_TRUE);
2313    if (!texObj)
2314       return;
2315
2316    get_tex_parameterIiv(ctx, texObj, pname, params, false);
2317 }
2318
2319
2320 /** New in GL 3.0 */
2321 void GLAPIENTRY
2322 _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
2323 {
2324    struct gl_texture_object *texObj;
2325    GET_CURRENT_CONTEXT(ctx);
2326
2327    texObj = get_texobj_by_target(ctx, target, GL_TRUE);
2328    if (!texObj)
2329       return;
2330
2331    get_tex_parameterIuiv(ctx, texObj, pname, params, false);
2332 }
2333
2334
2335 void GLAPIENTRY
2336 _mesa_GetTextureParameterfv(GLuint texture, GLenum pname, GLfloat *params)
2337 {
2338    struct gl_texture_object *obj;
2339    GET_CURRENT_CONTEXT(ctx);
2340
2341    obj = get_texobj_by_name(ctx, texture, GL_TRUE);
2342    if (!obj) {
2343       /* User passed a non-generated name. */
2344       _mesa_error(ctx, GL_INVALID_OPERATION,
2345                   "glGetTextureParameterfv(texture)");
2346       return;
2347    }
2348
2349    get_tex_parameterfv(ctx, obj, pname, params, true);
2350 }
2351
2352 void GLAPIENTRY
2353 _mesa_GetTextureParameteriv(GLuint texture, GLenum pname, GLint *params)
2354 {
2355    struct gl_texture_object *obj;
2356    GET_CURRENT_CONTEXT(ctx);
2357
2358    obj = get_texobj_by_name(ctx, texture, GL_TRUE);
2359    if (!obj) {
2360       /* User passed a non-generated name. */
2361       _mesa_error(ctx, GL_INVALID_OPERATION,
2362                   "glGetTextureParameteriv(texture)");
2363       return;
2364    }
2365
2366    get_tex_parameteriv(ctx, obj, pname, params, true);
2367 }
2368
2369 void GLAPIENTRY
2370 _mesa_GetTextureParameterIiv(GLuint texture, GLenum pname, GLint *params)
2371 {
2372    struct gl_texture_object *texObj;
2373    GET_CURRENT_CONTEXT(ctx);
2374
2375    texObj = get_texobj_by_name(ctx, texture, GL_TRUE);
2376    if (!texObj) {
2377       /* User passed a non-generated name. */
2378       _mesa_error(ctx, GL_INVALID_OPERATION,
2379                   "glGetTextureParameterIiv(texture)");
2380       return;
2381    }
2382
2383    get_tex_parameterIiv(ctx, texObj, pname, params, true);
2384 }
2385
2386
2387 void GLAPIENTRY
2388 _mesa_GetTextureParameterIuiv(GLuint texture, GLenum pname, GLuint *params)
2389 {
2390    struct gl_texture_object *texObj;
2391    GET_CURRENT_CONTEXT(ctx);
2392
2393    texObj = get_texobj_by_name(ctx, texture, GL_TRUE);
2394    if (!texObj) {
2395       /* User passed a non-generated name. */
2396       _mesa_error(ctx, GL_INVALID_OPERATION,
2397                   "glGetTextureParameterIuiv(texture)");
2398       return;
2399    }
2400
2401    get_tex_parameterIuiv(ctx, texObj, pname, params, true);
2402 }