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, const char *name)
 157 {
 158    struct gl_texture_object *texObj;
 159
 160    texObj = _mesa_lookup_texture_err(ctx, texture, name);
 161    if (!texObj)
 162       return NULL;
 163
 164    switch (texObj->Target) {
 165    case GL_TEXTURE_1D:
 166    case GL_TEXTURE_1D_ARRAY:
 167    case GL_TEXTURE_2D:
 168    case GL_TEXTURE_2D_ARRAY:
 169    case GL_TEXTURE_2D_MULTISAMPLE:
 170    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
 171    case GL_TEXTURE_3D:
 172    case GL_TEXTURE_CUBE_MAP:
 173    case GL_TEXTURE_CUBE_MAP_ARRAY:
 174    case GL_TEXTURE_RECTANGLE:
 175       return texObj;
 176    default:
 177       _mesa_error(ctx, GL_INVALID_ENUM, "%s(target)", name);
 178       return NULL;
 179    }
 180
 181 }
 182
 183
 184 /**
 185  * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
 186  * \return -1 if error.
 187  */
 188 static GLint
 189 comp_to_swizzle(GLenum comp)
 190 {
 191    switch (comp) {
 192    case GL_RED:
 193       return SWIZZLE_X;
 194    case GL_GREEN:
 195       return SWIZZLE_Y;
 196    case GL_BLUE:
 197       return SWIZZLE_Z;
 198    case GL_ALPHA:
 199       return SWIZZLE_W;
 200    case GL_ZERO:
 201       return SWIZZLE_ZERO;
 202    case GL_ONE:
 203       return SWIZZLE_ONE;
 204    default:
 205       return -1;
 206    }
 207 }
 208
 209
 210 static void
 211 set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
 212 {
 213    assert(comp < 4);
 214    assert(swz <= SWIZZLE_NIL);
 215    {
 216       GLuint mask = 0x7 << (3 * comp);
 217       GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));
 218       *swizzle = s;
 219    }
 220 }
 221
 222
 223 /**
 224  * This is called just prior to changing any texture object state which
 225  * will not affect texture completeness.
 226  */
 227 static inline void
 228 flush(struct gl_context *ctx)
 229 {
 230    FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
 231 }
 232
 233
 234 /**
 235  * This is called just prior to changing any texture object state which
 236  * could affect texture completeness (texture base level, max level).
 237  * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE_OBJECT
 238  * state flag and then mark the texture object as 'incomplete' so that any
 239  * per-texture derived state gets recomputed.
 240  */
 241 static inline void
 242 incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
 243 {
 244    FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
 245    _mesa_dirty_texobj(ctx, texObj);
 246 }
 247
 248
 249 GLboolean
 250 _mesa_target_allows_setting_sampler_parameters(GLenum target)
 251 {
 252    switch (target) {
 253    case GL_TEXTURE_2D_MULTISAMPLE:
 254    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
 255       return GL_FALSE;
 256
 257    default:
 258       return GL_TRUE;
 259    }
 260 }
 261
 262
 263 /**
 264  * Set an integer-valued texture parameter
 265  * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
 266  */
 267 static GLboolean
 268 set_tex_parameteri(struct gl_context *ctx,
 269                    struct gl_texture_object *texObj,
 270                    GLenum pname, const GLint *params, bool dsa)
 271 {
 272    const char *suffix = dsa ? "ture" : "";
 273
 274    if (texObj->HandleAllocated) {
 275       /* The ARB_bindless_texture spec says:
 276        *
 277        * "The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
 278        * CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
 279        * functions defined in terms of these, if the texture object to be
 280        * modified is referenced by one or more texture or image handles."
 281        */
 282       _mesa_error(ctx, GL_INVALID_OPERATION,
 283                   "glTex%sParameter(immutable texture)", suffix);
 284       return GL_FALSE;
 285    }
 286
 287    switch (pname) {
 288    case GL_TEXTURE_MIN_FILTER:
 289       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 290          goto invalid_enum;
 291
 292       if (texObj->Sampler.MinFilter == params[0])
 293          return GL_FALSE;
 294       switch (params[0]) {
 295       case GL_NEAREST:
 296       case GL_LINEAR:
 297          flush(ctx);
 298          texObj->Sampler.MinFilter = params[0];
 299          return GL_TRUE;
 300       case GL_NEAREST_MIPMAP_NEAREST:
 301       case GL_LINEAR_MIPMAP_NEAREST:
 302       case GL_NEAREST_MIPMAP_LINEAR:
 303       case GL_LINEAR_MIPMAP_LINEAR:
 304          if (texObj->Target != GL_TEXTURE_RECTANGLE_NV &&
 305              texObj->Target != GL_TEXTURE_EXTERNAL_OES) {
 306             flush(ctx);
 307             texObj->Sampler.MinFilter = params[0];
 308             return GL_TRUE;
 309          }
 310          /* fall-through */
 311       default:
 312          goto invalid_param;
 313       }
 314       return GL_FALSE;
 315
 316    case GL_TEXTURE_MAG_FILTER:
 317       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 318          goto invalid_enum;
 319
 320       if (texObj->Sampler.MagFilter == params[0])
 321          return GL_FALSE;
 322       switch (params[0]) {
 323       case GL_NEAREST:
 324       case GL_LINEAR:
 325          flush(ctx); /* does not effect completeness */
 326          texObj->Sampler.MagFilter = params[0];
 327          return GL_TRUE;
 328       default:
 329          goto invalid_param;
 330       }
 331       return GL_FALSE;
 332
 333    case GL_TEXTURE_WRAP_S:
 334       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 335          goto invalid_enum;
 336
 337       if (texObj->Sampler.WrapS == params[0])
 338          return GL_FALSE;
 339       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 340          flush(ctx);
 341          texObj->Sampler.WrapS = params[0];
 342          return GL_TRUE;
 343       }
 344       return GL_FALSE;
 345
 346    case GL_TEXTURE_WRAP_T:
 347       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 348          goto invalid_enum;
 349
 350       if (texObj->Sampler.WrapT == params[0])
 351          return GL_FALSE;
 352       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 353          flush(ctx);
 354          texObj->Sampler.WrapT = params[0];
 355          return GL_TRUE;
 356       }
 357       return GL_FALSE;
 358
 359    case GL_TEXTURE_WRAP_R:
 360       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 361          goto invalid_enum;
 362
 363       if (texObj->Sampler.WrapR == params[0])
 364          return GL_FALSE;
 365       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 366          flush(ctx);
 367          texObj->Sampler.WrapR = params[0];
 368          return GL_TRUE;
 369       }
 370       return GL_FALSE;
 371
 372    case GL_TEXTURE_BASE_LEVEL:
 373       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 374          goto invalid_pname;
 375
 376       if (texObj->BaseLevel == params[0])
 377          return GL_FALSE;
 378
 379       if ((texObj->Target == GL_TEXTURE_2D_MULTISAMPLE ||
 380            texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) && params[0] != 0)
 381          goto invalid_operation;
 382
 383       if (params[0] < 0) {
 384          _mesa_error(ctx, GL_INVALID_VALUE,
 385                      "glTex%sParameter(param=%d)", suffix, params[0]);
 386          return GL_FALSE;
 387       }
 388       if (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0) {
 389          _mesa_error(ctx, GL_INVALID_OPERATION,
 390                      "glTex%sParameter(target=%s, param=%d)", suffix,
 391                      _mesa_enum_to_string(texObj->Target), params[0]);
 392          return GL_FALSE;
 393       }
 394       incomplete(ctx, texObj);
 395
 396       /** See note about ARB_texture_storage below */
 397       if (texObj->Immutable)
 398          texObj->BaseLevel = MIN2(texObj->ImmutableLevels - 1, params[0]);
 399       else
 400          texObj->BaseLevel = params[0];
 401
 402       return GL_TRUE;
 403
 404    case GL_TEXTURE_MAX_LEVEL:
 405       if (texObj->MaxLevel == params[0])
 406          return GL_FALSE;
 407
 408       if (params[0] < 0 ||
 409           (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] > 0)) {
 410          _mesa_error(ctx, GL_INVALID_VALUE,
 411                      "glTex%sParameter(param=%d)", suffix,
 412                      params[0]);
 413          return GL_FALSE;
 414       }
 415       incomplete(ctx, texObj);
 416
 417       /** From ARB_texture_storage:
 418        * However, if TEXTURE_IMMUTABLE_FORMAT is TRUE, then level_base is
 419        * clamped to the range [0, <levels> - 1] and level_max is then clamped to
 420        * the range [level_base, <levels> - 1], where <levels> is the parameter
 421        * passed the call to TexStorage* for the texture object.
 422        */
 423       if (texObj->Immutable)
 424           texObj->MaxLevel = CLAMP(params[0], texObj->BaseLevel,
 425                                    texObj->ImmutableLevels - 1);
 426       else
 427          texObj->MaxLevel = params[0];
 428
 429       return GL_TRUE;
 430
 431    case GL_GENERATE_MIPMAP_SGIS:
 432       if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
 433          goto invalid_pname;
 434
 435       if (params[0] && texObj->Target == GL_TEXTURE_EXTERNAL_OES)
 436          goto invalid_param;
 437       if (texObj->GenerateMipmap != params[0]) {
 438          /* no flush() */
 439          texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
 440          return GL_TRUE;
 441       }
 442       return GL_FALSE;
 443
 444    case GL_TEXTURE_COMPARE_MODE_ARB:
 445       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
 446           || _mesa_is_gles3(ctx)) {
 447
 448          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 449             goto invalid_enum;
 450
 451          if (texObj->Sampler.CompareMode == params[0])
 452             return GL_FALSE;
 453          if (params[0] == GL_NONE ||
 454              params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) {
 455             flush(ctx);
 456             texObj->Sampler.CompareMode = params[0];
 457             return GL_TRUE;
 458          }
 459          goto invalid_param;
 460       }
 461       goto invalid_pname;
 462
 463    case GL_TEXTURE_COMPARE_FUNC_ARB:
 464       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
 465           || _mesa_is_gles3(ctx)) {
 466
 467          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 468             goto invalid_enum;
 469
 470          if (texObj->Sampler.CompareFunc == params[0])
 471             return GL_FALSE;
 472          switch (params[0]) {
 473          case GL_LEQUAL:
 474          case GL_GEQUAL:
 475          case GL_EQUAL:
 476          case GL_NOTEQUAL:
 477          case GL_LESS:
 478          case GL_GREATER:
 479          case GL_ALWAYS:
 480          case GL_NEVER:
 481             flush(ctx);
 482             texObj->Sampler.CompareFunc = params[0];
 483             return GL_TRUE;
 484          default:
 485             goto invalid_param;
 486          }
 487       }
 488       goto invalid_pname;
 489
 490    case GL_DEPTH_TEXTURE_MODE_ARB:
 491       /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has never
 492        * existed in OpenGL ES.
 493        */
 494       if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_texture) {
 495          if (texObj->DepthMode == params[0])
 496             return GL_FALSE;
 497          if (params[0] == GL_LUMINANCE ||
 498              params[0] == GL_INTENSITY ||
 499              params[0] == GL_ALPHA ||
 500              (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) {
 501             flush(ctx);
 502             texObj->DepthMode = params[0];
 503             return GL_TRUE;
 504          }
 505          goto invalid_param;
 506       }
 507       goto invalid_pname;
 508
 509    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 510       if (_mesa_has_ARB_stencil_texturing(ctx) || _mesa_is_gles31(ctx)) {
 511          bool stencil = params[0] == GL_STENCIL_INDEX;
 512          if (!stencil && params[0] != GL_DEPTH_COMPONENT)
 513             goto invalid_param;
 514
 515          if (texObj->StencilSampling == stencil)
 516             return GL_FALSE;
 517
 518          texObj->StencilSampling = stencil;
 519          return GL_TRUE;
 520       }
 521       goto invalid_pname;
 522
 523    case GL_TEXTURE_CROP_RECT_OES:
 524       if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
 525          goto invalid_pname;
 526
 527       texObj->CropRect[0] = params[0];
 528       texObj->CropRect[1] = params[1];
 529       texObj->CropRect[2] = params[2];
 530       texObj->CropRect[3] = params[3];
 531       return GL_TRUE;
 532
 533    case GL_TEXTURE_SWIZZLE_R_EXT:
 534    case GL_TEXTURE_SWIZZLE_G_EXT:
 535    case GL_TEXTURE_SWIZZLE_B_EXT:
 536    case GL_TEXTURE_SWIZZLE_A_EXT:
 537       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
 538           || _mesa_is_gles3(ctx)) {
 539          const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
 540          const GLint swz = comp_to_swizzle(params[0]);
 541          if (swz < 0) {
 542             _mesa_error(ctx, GL_INVALID_ENUM,
 543                         "glTex%sParameter(swizzle 0x%x)", suffix, params[0]);
 544             return GL_FALSE;
 545          }
 546          assert(comp < 4);
 547
 548          flush(ctx);
 549          texObj->Swizzle[comp] = params[0];
 550          set_swizzle_component(&texObj->_Swizzle, comp, swz);
 551          return GL_TRUE;
 552       }
 553       goto invalid_pname;
 554
 555    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
 556       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
 557           || _mesa_is_gles3(ctx)) {
 558          GLuint comp;
 559          flush(ctx);
 560          for (comp = 0; comp < 4; comp++) {
 561             const GLint swz = comp_to_swizzle(params[comp]);
 562             if (swz >= 0) {
 563                texObj->Swizzle[comp] = params[comp];
 564                set_swizzle_component(&texObj->_Swizzle, comp, swz);
 565             }
 566             else {
 567                _mesa_error(ctx, GL_INVALID_ENUM,
 568                            "glTex%sParameter(swizzle 0x%x)",
 569                            suffix, params[comp]);
 570                return GL_FALSE;
 571             }
 572          }
 573          return GL_TRUE;
 574       }
 575       goto invalid_pname;
 576
 577    case GL_TEXTURE_SRGB_DECODE_EXT:
 578       if (ctx->Extensions.EXT_texture_sRGB_decode) {
 579          GLenum decode = params[0];
 580
 581          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 582             goto invalid_enum;
 583
 584          if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
 585             if (texObj->Sampler.sRGBDecode != decode) {
 586                flush(ctx);
 587                texObj->Sampler.sRGBDecode = decode;
 588             }
 589             return GL_TRUE;
 590          }
 591       }
 592       goto invalid_pname;
 593
 594    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 595       if (_mesa_is_desktop_gl(ctx)
 596           && ctx->Extensions.AMD_seamless_cubemap_per_texture) {
 597          GLenum param = params[0];
 598
 599          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 600             goto invalid_enum;
 601
 602          if (param != GL_TRUE && param != GL_FALSE) {
 603             goto invalid_param;
 604          }
 605          if (param != texObj->Sampler.CubeMapSeamless) {
 606             flush(ctx);
 607             texObj->Sampler.CubeMapSeamless = param;
 608          }
 609          return GL_TRUE;
 610       }
 611       goto invalid_pname;
 612
 613    default:
 614       goto invalid_pname;
 615    }
 616
 617 invalid_pname:
 618    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 619                suffix, _mesa_enum_to_string(pname));
 620    return GL_FALSE;
 621
 622 invalid_param:
 623    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(param=%s)",
 624                suffix, _mesa_enum_to_string(params[0]));
 625    return GL_FALSE;
 626
 627 invalid_operation:
 628    _mesa_error(ctx, GL_INVALID_OPERATION, "glTex%sParameter(pname=%s)",
 629                suffix, _mesa_enum_to_string(pname));
 630    return GL_FALSE;
 631
 632 invalid_enum:
 633    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 634                suffix, _mesa_enum_to_string(pname));
 635    return GL_FALSE;
 636 }
 637
 638
 639 /**
 640  * Set a float-valued texture parameter
 641  * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
 642  */
 643 static GLboolean
 644 set_tex_parameterf(struct gl_context *ctx,
 645                    struct gl_texture_object *texObj,
 646                    GLenum pname, const GLfloat *params, bool dsa)
 647 {
 648    const char *suffix = dsa ? "ture" : "";
 649
 650    if (texObj->HandleAllocated) {
 651       /* The ARB_bindless_texture spec says:
 652        *
 653        * "The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
 654        * CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
 655        * functions defined in terms of these, if the texture object to be
 656        * modified is referenced by one or more texture or image handles."
 657        */
 658       _mesa_error(ctx, GL_INVALID_OPERATION,
 659                   "glTex%sParameter(immutable texture)", suffix);
 660       return GL_FALSE;
 661    }
 662
 663    switch (pname) {
 664    case GL_TEXTURE_MIN_LOD:
 665       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 666          goto invalid_pname;
 667
 668       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 669          goto invalid_enum;
 670
 671       if (texObj->Sampler.MinLod == params[0])
 672          return GL_FALSE;
 673       flush(ctx);
 674       texObj->Sampler.MinLod = params[0];
 675       return GL_TRUE;
 676
 677    case GL_TEXTURE_MAX_LOD:
 678       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 679          goto invalid_pname;
 680
 681       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 682          goto invalid_enum;
 683
 684       if (texObj->Sampler.MaxLod == params[0])
 685          return GL_FALSE;
 686       flush(ctx);
 687       texObj->Sampler.MaxLod = params[0];
 688       return GL_TRUE;
 689
 690    case GL_TEXTURE_PRIORITY:
 691       if (ctx->API != API_OPENGL_COMPAT)
 692          goto invalid_pname;
 693
 694       flush(ctx);
 695       texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
 696       return GL_TRUE;
 697
 698    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 699       if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 700          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 701             goto invalid_enum;
 702
 703          if (texObj->Sampler.MaxAnisotropy == params[0])
 704             return GL_FALSE;
 705          if (params[0] < 1.0F) {
 706             _mesa_error(ctx, GL_INVALID_VALUE, "glTex%sParameter(param)",
 707                         suffix);
 708             return GL_FALSE;
 709          }
 710          flush(ctx);
 711          /* clamp to max, that's what NVIDIA does */
 712          texObj->Sampler.MaxAnisotropy = MIN2(params[0],
 713                                       ctx->Const.MaxTextureMaxAnisotropy);
 714          return GL_TRUE;
 715       }
 716       else {
 717          static GLuint count = 0;
 718          if (count++ < 10)
 719             goto invalid_pname;
 720       }
 721       return GL_FALSE;
 722
 723    case GL_TEXTURE_LOD_BIAS:
 724       /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias. */
 725       if (_mesa_is_gles(ctx))
 726          goto invalid_pname;
 727
 728       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 729          goto invalid_enum;
 730
 731       if (texObj->Sampler.LodBias != params[0]) {
 732          flush(ctx);
 733          texObj->Sampler.LodBias = params[0];
 734          return GL_TRUE;
 735       }
 736       break;
 737
 738    case GL_TEXTURE_BORDER_COLOR:
 739       /* Border color exists in desktop OpenGL since 1.0 for GL_CLAMP.  In
 740        * OpenGL ES 2.0+, it only exists in when GL_OES_texture_border_clamp is
 741        * enabled.  It is never available in OpenGL ES 1.x.
 742        *
 743        * FIXME: Every driver that supports GLES2 has this extension.  Elide
 744        * the check?
 745        */
 746       if (ctx->API == API_OPENGLES ||
 747           (ctx->API == API_OPENGLES2 &&
 748            !ctx->Extensions.ARB_texture_border_clamp))
 749          goto invalid_pname;
 750
 751       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 752          goto invalid_enum;
 753
 754       flush(ctx);
 755       /* ARB_texture_float disables clamping */
 756       if (ctx->Extensions.ARB_texture_float) {
 757          texObj->Sampler.BorderColor.f[RCOMP] = params[0];
 758          texObj->Sampler.BorderColor.f[GCOMP] = params[1];
 759          texObj->Sampler.BorderColor.f[BCOMP] = params[2];
 760          texObj->Sampler.BorderColor.f[ACOMP] = params[3];
 761       } else {
 762          texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F);
 763          texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F);
 764          texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F);
 765          texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F);
 766       }
 767       return GL_TRUE;
 768
 769    default:
 770       goto invalid_pname;
 771    }
 772    return GL_FALSE;
 773
 774 invalid_pname:
 775    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 776                suffix, _mesa_enum_to_string(pname));
 777    return GL_FALSE;
 778
 779 invalid_enum:
 780    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 781                suffix, _mesa_enum_to_string(pname));
 782    return GL_FALSE;
 783 }
 784
 785
 786 void
 787 _mesa_texture_parameterf(struct gl_context *ctx,
 788                          struct gl_texture_object *texObj,
 789                          GLenum pname, GLfloat param, bool dsa)
 790 {
 791    GLboolean need_update;
 792
 793    switch (pname) {
 794    case GL_TEXTURE_MIN_FILTER:
 795    case GL_TEXTURE_MAG_FILTER:
 796    case GL_TEXTURE_WRAP_S:
 797    case GL_TEXTURE_WRAP_T:
 798    case GL_TEXTURE_WRAP_R:
 799    case GL_TEXTURE_BASE_LEVEL:
 800    case GL_TEXTURE_MAX_LEVEL:
 801    case GL_GENERATE_MIPMAP_SGIS:
 802    case GL_TEXTURE_COMPARE_MODE_ARB:
 803    case GL_TEXTURE_COMPARE_FUNC_ARB:
 804    case GL_DEPTH_TEXTURE_MODE_ARB:
 805    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 806    case GL_TEXTURE_SRGB_DECODE_EXT:
 807    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 808    case GL_TEXTURE_SWIZZLE_R_EXT:
 809    case GL_TEXTURE_SWIZZLE_G_EXT:
 810    case GL_TEXTURE_SWIZZLE_B_EXT:
 811    case GL_TEXTURE_SWIZZLE_A_EXT:
 812       {
 813          GLint p[4];
 814          p[0] = (param > 0) ?
 815                 ((param > INT_MAX) ? INT_MAX : (GLint) (param + 0.5)) :
 816                 ((param < INT_MIN) ? INT_MIN : (GLint) (param - 0.5));
 817
 818          p[1] = p[2] = p[3] = 0;
 819          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 820       }
 821       break;
 822    case GL_TEXTURE_BORDER_COLOR:
 823    case GL_TEXTURE_SWIZZLE_RGBA:
 824       _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameterf(non-scalar pname)",
 825                   dsa ? "ture" : "");
 826       return;
 827    default:
 828       {
 829          /* this will generate an error if pname is illegal */
 830          GLfloat p[4];
 831          p[0] = param;
 832          p[1] = p[2] = p[3] = 0.0F;
 833          need_update = set_tex_parameterf(ctx, texObj, pname, p, dsa);
 834       }
 835    }
 836
 837    if (ctx->Driver.TexParameter && need_update) {
 838       ctx->Driver.TexParameter(ctx, texObj, pname);
 839    }
 840 }
 841
 842
 843 void
 844 _mesa_texture_parameterfv(struct gl_context *ctx,
 845                           struct gl_texture_object *texObj,
 846                           GLenum pname, const GLfloat *params, bool dsa)
 847 {
 848    GLboolean need_update;
 849    switch (pname) {
 850    case GL_TEXTURE_MIN_FILTER:
 851    case GL_TEXTURE_MAG_FILTER:
 852    case GL_TEXTURE_WRAP_S:
 853    case GL_TEXTURE_WRAP_T:
 854    case GL_TEXTURE_WRAP_R:
 855    case GL_TEXTURE_BASE_LEVEL:
 856    case GL_TEXTURE_MAX_LEVEL:
 857    case GL_GENERATE_MIPMAP_SGIS:
 858    case GL_TEXTURE_COMPARE_MODE_ARB:
 859    case GL_TEXTURE_COMPARE_FUNC_ARB:
 860    case GL_DEPTH_TEXTURE_MODE_ARB:
 861    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 862    case GL_TEXTURE_SRGB_DECODE_EXT:
 863    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 864       {
 865          /* convert float param to int */
 866          GLint p[4];
 867          p[0] = (GLint) params[0];
 868          p[1] = p[2] = p[3] = 0;
 869          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 870       }
 871       break;
 872    case GL_TEXTURE_CROP_RECT_OES:
 873       {
 874          /* convert float params to int */
 875          GLint iparams[4];
 876          iparams[0] = (GLint) params[0];
 877          iparams[1] = (GLint) params[1];
 878          iparams[2] = (GLint) params[2];
 879          iparams[3] = (GLint) params[3];
 880          need_update = set_tex_parameteri(ctx, texObj, pname, iparams, dsa);
 881       }
 882       break;
 883    case GL_TEXTURE_SWIZZLE_R_EXT:
 884    case GL_TEXTURE_SWIZZLE_G_EXT:
 885    case GL_TEXTURE_SWIZZLE_B_EXT:
 886    case GL_TEXTURE_SWIZZLE_A_EXT:
 887    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
 888       {
 889          GLint p[4] = {0, 0, 0, 0};
 890          p[0] = (GLint) params[0];
 891          if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT) {
 892             p[1] = (GLint) params[1];
 893             p[2] = (GLint) params[2];
 894             p[3] = (GLint) params[3];
 895          }
 896          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 897       }
 898       break;
 899    default:
 900       /* this will generate an error if pname is illegal */
 901       need_update = set_tex_parameterf(ctx, texObj, pname, params, dsa);
 902    }
 903
 904    if (ctx->Driver.TexParameter && need_update) {
 905       ctx->Driver.TexParameter(ctx, texObj, pname);
 906    }
 907 }
 908
 909
 910 void
 911 _mesa_texture_parameteri(struct gl_context *ctx,
 912                          struct gl_texture_object *texObj,
 913                          GLenum pname, GLint param, bool dsa)
 914 {
 915    GLboolean need_update;
 916    switch (pname) {
 917    case GL_TEXTURE_MIN_LOD:
 918    case GL_TEXTURE_MAX_LOD:
 919    case GL_TEXTURE_PRIORITY:
 920    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 921    case GL_TEXTURE_LOD_BIAS:
 922    case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
 923       {
 924          GLfloat fparam[4];
 925          fparam[0] = (GLfloat) param;
 926          fparam[1] = fparam[2] = fparam[3] = 0.0F;
 927          /* convert int param to float */
 928          need_update = set_tex_parameterf(ctx, texObj, pname, fparam, dsa);
 929       }
 930       break;
 931    case GL_TEXTURE_BORDER_COLOR:
 932    case GL_TEXTURE_SWIZZLE_RGBA:
 933       {
 934          _mesa_error(ctx, GL_INVALID_ENUM,
 935                      "glTex%sParameteri(non-scalar pname)",
 936                      dsa ? "ture" : "");
 937          return;
 938       }
 939    default:
 940       /* this will generate an error if pname is illegal */
 941       {
 942          GLint iparam[4];
 943          iparam[0] = param;
 944          iparam[1] = iparam[2] = iparam[3] = 0;
 945          need_update = set_tex_parameteri(ctx, texObj, pname, iparam, dsa);
 946       }
 947    }
 948
 949    if (ctx->Driver.TexParameter && need_update) {
 950       ctx->Driver.TexParameter(ctx, texObj, pname);
 951    }
 952 }
 953
 954
 955 void
 956 _mesa_texture_parameteriv(struct gl_context *ctx,
 957                           struct gl_texture_object *texObj,
 958                           GLenum pname, const GLint *params, bool dsa)
 959 {
 960    GLboolean need_update;
 961
 962    switch (pname) {
 963    case GL_TEXTURE_BORDER_COLOR:
 964       {
 965          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
 966             _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameteriv(texture)");
 967             return;
 968          }
 969          /* convert int params to float */
 970          GLfloat fparams[4];
 971          fparams[0] = INT_TO_FLOAT(params[0]);
 972          fparams[1] = INT_TO_FLOAT(params[1]);
 973          fparams[2] = INT_TO_FLOAT(params[2]);
 974          fparams[3] = INT_TO_FLOAT(params[3]);
 975          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 976       }
 977       break;
 978    case GL_TEXTURE_MIN_LOD:
 979    case GL_TEXTURE_MAX_LOD:
 980    case GL_TEXTURE_PRIORITY:
 981    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 982    case GL_TEXTURE_LOD_BIAS:
 983    case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
 984       {
 985          /* convert int param to float */
 986          GLfloat fparams[4];
 987          fparams[0] = (GLfloat) params[0];
 988          fparams[1] = fparams[2] = fparams[3] = 0.0F;
 989          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 990       }
 991       break;
 992    default:
 993       /* this will generate an error if pname is illegal */
 994       need_update = set_tex_parameteri(ctx, texObj, pname, params, dsa);
 995    }
 996
 997    if (ctx->Driver.TexParameter && need_update) {
 998       ctx->Driver.TexParameter(ctx, texObj, pname);
 999    }
1000 }
1001
1002 void
1003 _mesa_texture_parameterIiv(struct gl_context *ctx,
1004                            struct gl_texture_object *texObj,
1005                            GLenum pname, const GLint *params, bool dsa)
1006 {
1007    switch (pname) {
1008    case GL_TEXTURE_BORDER_COLOR:
1009       if (texObj->HandleAllocated) {
1010          _mesa_error(ctx, GL_INVALID_OPERATION,
1011                      "glTextureParameterIiv(immutable texture)");
1012          return;
1013       }
1014
1015       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
1016          _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIiv(texture)");
1017          return;
1018       }
1019       FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
1020       /* set the integer-valued border color */
1021       COPY_4V(texObj->Sampler.BorderColor.i, params);
1022       break;
1023    default:
1024       _mesa_texture_parameteriv(ctx, texObj, pname, params, dsa);
1025       break;
1026    }
1027    /* XXX no driver hook for TexParameterIiv() yet */
1028 }
1029
1030 void
1031 _mesa_texture_parameterIuiv(struct gl_context *ctx,
1032                             struct gl_texture_object *texObj,
1033                             GLenum pname, const GLuint *params, bool dsa)
1034 {
1035    switch (pname) {
1036    case GL_TEXTURE_BORDER_COLOR:
1037       if (texObj->HandleAllocated) {
1038          _mesa_error(ctx, GL_INVALID_OPERATION,
1039                      "glTextureParameterIuiv(immutable texture)");
1040          return;
1041       }
1042
1043       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
1044          _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIuiv(texture)");
1045          return;
1046       }
1047       FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
1048       /* set the unsigned integer-valued border color */
1049       COPY_4V(texObj->Sampler.BorderColor.ui, params);
1050       break;
1051    default:
1052       _mesa_texture_parameteriv(ctx, texObj, pname, (const GLint *) params,
1053                                 dsa);
1054       break;
1055    }
1056    /* XXX no driver hook for TexParameterIuiv() yet */
1057 }
1058
1059 void GLAPIENTRY
1060 _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
1061 {
1062    struct gl_texture_object *texObj;
1063    GET_CURRENT_CONTEXT(ctx);
1064
1065    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1066    if (!texObj)
1067       return;
1068
1069    _mesa_texture_parameterf(ctx, texObj, pname, param, false);
1070 }
1071
1072 void GLAPIENTRY
1073 _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
1074 {
1075    struct gl_texture_object *texObj;
1076    GET_CURRENT_CONTEXT(ctx);
1077
1078    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1079    if (!texObj)
1080       return;
1081
1082    _mesa_texture_parameterfv(ctx, texObj, pname, params, false);
1083 }
1084
1085 void GLAPIENTRY
1086 _mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
1087 {
1088    struct gl_texture_object *texObj;
1089    GET_CURRENT_CONTEXT(ctx);
1090
1091    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1092    if (!texObj)
1093       return;
1094
1095    _mesa_texture_parameteri(ctx, texObj, pname, param, false);
1096 }
1097
1098 void GLAPIENTRY
1099 _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
1100 {
1101    struct gl_texture_object *texObj;
1102    GET_CURRENT_CONTEXT(ctx);
1103
1104    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1105    if (!texObj)
1106       return;
1107
1108    _mesa_texture_parameteriv(ctx, texObj, pname, params, false);
1109 }
1110
1111 /**
1112  * Set tex parameter to integer value(s).  Primarily intended to set
1113  * integer-valued texture border color (for integer-valued textures).
1114  * New in GL 3.0.
1115  */
1116 void GLAPIENTRY
1117 _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
1118 {
1119    struct gl_texture_object *texObj;
1120    GET_CURRENT_CONTEXT(ctx);
1121
1122    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1123    if (!texObj)
1124       return;
1125
1126    _mesa_texture_parameterIiv(ctx, texObj, pname, params, false);
1127 }
1128
1129 /**
1130  * Set tex parameter to unsigned integer value(s).  Primarily intended to set
1131  * uint-valued texture border color (for integer-valued textures).
1132  * New in GL 3.0
1133  */
1134 void GLAPIENTRY
1135 _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
1136 {
1137    struct gl_texture_object *texObj;
1138    GET_CURRENT_CONTEXT(ctx);
1139
1140    texObj = get_texobj_by_target(ctx, target, GL_FALSE);
1141    if (!texObj)
1142       return;
1143
1144    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, false);
1145 }
1146
1147
1148 void GLAPIENTRY
1149 _mesa_TextureParameterfv(GLuint texture, GLenum pname, const GLfloat *params)
1150 {
1151    struct gl_texture_object *texObj;
1152    GET_CURRENT_CONTEXT(ctx);
1153
1154    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterfv");
1155    if (!texObj)
1156       return;
1157
1158    _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
1159 }
1160
1161 void GLAPIENTRY
1162 _mesa_TextureParameterf(GLuint texture, GLenum pname, GLfloat param)
1163 {
1164    struct gl_texture_object *texObj;
1165    GET_CURRENT_CONTEXT(ctx);
1166
1167    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterf");
1168    if (!texObj)
1169       return;
1170
1171    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1172 }
1173
1174 void GLAPIENTRY
1175 _mesa_TextureParameteri(GLuint texture, GLenum pname, GLint param)
1176 {
1177    struct gl_texture_object *texObj;
1178    GET_CURRENT_CONTEXT(ctx);
1179
1180    texObj = get_texobj_by_name(ctx, texture, "glTextureParameteri");
1181    if (!texObj)
1182       return;
1183
1184    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1185 }
1186
1187 void GLAPIENTRY
1188 _mesa_TextureParameteriv(GLuint texture, GLenum pname,
1189                          const GLint *params)
1190 {
1191    struct gl_texture_object *texObj;
1192    GET_CURRENT_CONTEXT(ctx);
1193
1194    texObj = get_texobj_by_name(ctx, texture, "glTextureParameteriv");
1195    if (!texObj)
1196       return;
1197
1198    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1199 }
1200
1201
1202 void GLAPIENTRY
1203 _mesa_TextureParameterIiv(GLuint texture, GLenum pname, const GLint *params)
1204 {
1205    struct gl_texture_object *texObj;
1206    GET_CURRENT_CONTEXT(ctx);
1207
1208    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIiv");
1209    if (!texObj)
1210       return;
1211
1212    _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
1213 }
1214
1215 void GLAPIENTRY
1216 _mesa_TextureParameterIuiv(GLuint texture, GLenum pname, const GLuint *params)
1217 {
1218    struct gl_texture_object *texObj;
1219    GET_CURRENT_CONTEXT(ctx);
1220
1221    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIuiv");
1222    if (!texObj)
1223       return;
1224
1225    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
1226 }
1227
1228 GLboolean
1229 _mesa_legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target,
1230                                            bool dsa)
1231 {
1232    /* Common targets for desktop GL and GLES 3.1. */
1233    switch (target) {
1234    case GL_TEXTURE_2D:
1235    case GL_TEXTURE_3D:
1236       return GL_TRUE;
1237    case GL_TEXTURE_2D_ARRAY_EXT:
1238       return ctx->Extensions.EXT_texture_array;
1239    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1240    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1241    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1242    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1243    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1244    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1245       return ctx->Extensions.ARB_texture_cube_map;
1246    case GL_TEXTURE_2D_MULTISAMPLE:
1247    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1248       return ctx->Extensions.ARB_texture_multisample;
1249    case GL_TEXTURE_BUFFER:
1250       /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts,
1251        * but not in earlier versions that expose ARB_texture_buffer_object.
1252        *
1253        * From the ARB_texture_buffer_object spec:
1254        * "(7) Do buffer textures support texture parameters (TexParameter) or
1255        *      queries (GetTexParameter, GetTexLevelParameter, GetTexImage)?
1256        *
1257        *    RESOLVED:  No. [...] Note that the spec edits above don't add
1258        *    explicit error language for any of these cases.  That is because
1259        *    each of the functions enumerate the set of valid <target>
1260        *    parameters.  Not editing the spec to allow TEXTURE_BUFFER_ARB in
1261        *    these cases means that target is not legal, and an INVALID_ENUM
1262        *    error should be generated."
1263        *
1264        * From the OpenGL 3.1 spec:
1265        * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
1266        */
1267       return (ctx->API == API_OPENGL_CORE && ctx->Version >= 31) ||
1268          _mesa_has_OES_texture_buffer(ctx);
1269    case GL_TEXTURE_CUBE_MAP_ARRAY:
1270       return _mesa_has_texture_cube_map_array(ctx);
1271    }
1272
1273    if (!_mesa_is_desktop_gl(ctx))
1274       return GL_FALSE;
1275
1276    /* Rest of the desktop GL targets. */
1277    switch (target) {
1278    case GL_TEXTURE_1D:
1279    case GL_PROXY_TEXTURE_1D:
1280    case GL_PROXY_TEXTURE_2D:
1281    case GL_PROXY_TEXTURE_3D:
1282       return GL_TRUE;
1283    case GL_PROXY_TEXTURE_CUBE_MAP:
1284       return ctx->Extensions.ARB_texture_cube_map;
1285    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1286       return ctx->Extensions.ARB_texture_cube_map_array;
1287    case GL_TEXTURE_RECTANGLE_NV:
1288    case GL_PROXY_TEXTURE_RECTANGLE_NV:
1289       return ctx->Extensions.NV_texture_rectangle;
1290    case GL_TEXTURE_1D_ARRAY_EXT:
1291    case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1292    case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1293       return ctx->Extensions.EXT_texture_array;
1294    case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1295    case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1296       return ctx->Extensions.ARB_texture_multisample;
1297
1298    /*  This is a valid target for dsa, but the OpenGL 4.5 core spec
1299     *  (30.10.2014) Section 8.11 Texture Queries says:
1300     *       "For GetTextureLevelParameter* only, texture may also be a cube
1301     *       map texture object.  In this case the query is always performed
1302     *       for face zero (the TEXTURE_CUBE_MAP_POSITIVE_X face), since there
1303     *       is no way to specify another face."
1304     */
1305    case GL_TEXTURE_CUBE_MAP:
1306       return dsa;
1307    default:
1308       return GL_FALSE;
1309    }
1310 }
1311
1312
1313 static void
1314 get_tex_level_parameter_image(struct gl_context *ctx,
1315                               const struct gl_texture_object *texObj,
1316                               GLenum target, GLint level,
1317                               GLenum pname, GLint *params,
1318                               bool dsa)
1319 {
1320    const struct gl_texture_image *img = NULL;
1321    struct gl_texture_image dummy_image;
1322    mesa_format texFormat;
1323    const char *suffix = dsa ? "ture" : "";
1324
1325    img = _mesa_select_tex_image(texObj, target, level);
1326    if (!img || img->TexFormat == MESA_FORMAT_NONE) {
1327       /* In case of undefined texture image return the default values.
1328        *
1329        * From OpenGL 4.0 spec, page 398:
1330        *    "The initial internal format of a texel array is RGBA
1331        *     instead of 1. TEXTURE_COMPONENTS is deprecated; always
1332        *     use TEXTURE_INTERNAL_FORMAT."
1333        */
1334       memset(&dummy_image, 0, sizeof(dummy_image));
1335       dummy_image.TexFormat = MESA_FORMAT_NONE;
1336       dummy_image.InternalFormat = GL_RGBA;
1337       dummy_image._BaseFormat = GL_NONE;
1338       dummy_image.FixedSampleLocations = GL_TRUE;
1339
1340       img = &dummy_image;
1341    }
1342
1343    texFormat = img->TexFormat;
1344
1345    switch (pname) {
1346       case GL_TEXTURE_WIDTH:
1347          *params = img->Width;
1348          break;
1349       case GL_TEXTURE_HEIGHT:
1350          *params = img->Height;
1351          break;
1352       case GL_TEXTURE_DEPTH:
1353          *params = img->Depth;
1354          break;
1355       case GL_TEXTURE_INTERNAL_FORMAT:
1356          if (_mesa_is_format_compressed(texFormat)) {
1357             /* need to return the actual compressed format */
1358             *params = _mesa_compressed_format_to_glenum(ctx, texFormat);
1359          }
1360          else {
1361             /* If the true internal format is not compressed but the user
1362              * requested a generic compressed format, we have to return the
1363              * generic base format that matches.
1364              *
1365              * From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec:
1366              *
1367              *     "If no specific compressed format is available,
1368              *     internalformat is instead replaced by the corresponding base
1369              *     internal format."
1370              *
1371              * Otherwise just return the user's requested internal format
1372              */
1373             const GLenum f =
1374                _mesa_gl_compressed_format_base_format(img->InternalFormat);
1375
1376             *params = (f != 0) ? f : img->InternalFormat;
1377          }
1378          break;
1379       case GL_TEXTURE_BORDER:
1380          if (ctx->API != API_OPENGL_COMPAT)
1381             goto invalid_pname;
1382          *params = img->Border;
1383          break;
1384       case GL_TEXTURE_RED_SIZE:
1385       case GL_TEXTURE_GREEN_SIZE:
1386       case GL_TEXTURE_BLUE_SIZE:
1387       case GL_TEXTURE_ALPHA_SIZE:
1388          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1389             *params = _mesa_get_format_bits(texFormat, pname);
1390          else
1391             *params = 0;
1392          break;
1393       case GL_TEXTURE_INTENSITY_SIZE:
1394       case GL_TEXTURE_LUMINANCE_SIZE:
1395          if (ctx->API != API_OPENGL_COMPAT)
1396             goto invalid_pname;
1397          if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) {
1398             *params = _mesa_get_format_bits(texFormat, pname);
1399             if (*params == 0) {
1400                /* intensity or luminance is probably stored as RGB[A] */
1401                *params = MIN2(_mesa_get_format_bits(texFormat,
1402                                                     GL_TEXTURE_RED_SIZE),
1403                               _mesa_get_format_bits(texFormat,
1404                                                     GL_TEXTURE_GREEN_SIZE));
1405             }
1406          }
1407          else {
1408             *params = 0;
1409          }
1410          break;
1411       case GL_TEXTURE_DEPTH_SIZE_ARB:
1412          if (!ctx->Extensions.ARB_depth_texture)
1413             goto invalid_pname;
1414          *params = _mesa_get_format_bits(texFormat, pname);
1415          break;
1416       case GL_TEXTURE_STENCIL_SIZE:
1417          *params = _mesa_get_format_bits(texFormat, pname);
1418          break;
1419       case GL_TEXTURE_SHARED_SIZE:
1420          if (ctx->Version < 30 &&
1421              !ctx->Extensions.EXT_texture_shared_exponent)
1422             goto invalid_pname;
1423          *params = texFormat == MESA_FORMAT_R9G9B9E5_FLOAT ? 5 : 0;
1424          break;
1425
1426       /* GL_ARB_texture_compression */
1427       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1428          if (_mesa_is_format_compressed(texFormat) &&
1429              !_mesa_is_proxy_texture(target)) {
1430             *params = _mesa_format_image_size(texFormat, img->Width,
1431                                               img->Height, img->Depth);
1432          } else {
1433             _mesa_error(ctx, GL_INVALID_OPERATION,
1434                         "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1435                         _mesa_enum_to_string(pname));
1436          }
1437          break;
1438       case GL_TEXTURE_COMPRESSED:
1439          *params = (GLint) _mesa_is_format_compressed(texFormat);
1440          break;
1441
1442       /* GL_ARB_texture_float */
1443       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1444       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1445          if (ctx->API != API_OPENGL_COMPAT)
1446             goto invalid_pname;
1447          /* FALLTHROUGH */
1448       case GL_TEXTURE_RED_TYPE_ARB:
1449       case GL_TEXTURE_GREEN_TYPE_ARB:
1450       case GL_TEXTURE_BLUE_TYPE_ARB:
1451       case GL_TEXTURE_ALPHA_TYPE_ARB:
1452       case GL_TEXTURE_DEPTH_TYPE_ARB:
1453          if (!ctx->Extensions.ARB_texture_float)
1454             goto invalid_pname;
1455          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1456             *params = _mesa_get_format_datatype(texFormat);
1457          else
1458             *params = GL_NONE;
1459          break;
1460
1461       /* GL_ARB_texture_multisample */
1462       case GL_TEXTURE_SAMPLES:
1463          if (!ctx->Extensions.ARB_texture_multisample)
1464             goto invalid_pname;
1465          *params = img->NumSamples;
1466          break;
1467
1468       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1469          if (!ctx->Extensions.ARB_texture_multisample)
1470             goto invalid_pname;
1471          *params = img->FixedSampleLocations;
1472          break;
1473
1474       /* There is never a buffer data store here, but these pnames still have
1475        * to work.
1476        */
1477
1478       /* GL_ARB_texture_buffer_object */
1479       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1480          if (!ctx->Extensions.ARB_texture_buffer_object)
1481             goto invalid_pname;
1482          *params = 0;
1483          break;
1484
1485       /* GL_ARB_texture_buffer_range */
1486       case GL_TEXTURE_BUFFER_OFFSET:
1487          if (!ctx->Extensions.ARB_texture_buffer_range)
1488             goto invalid_pname;
1489          *params = 0;
1490          break;
1491       case GL_TEXTURE_BUFFER_SIZE:
1492          if (!ctx->Extensions.ARB_texture_buffer_range)
1493             goto invalid_pname;
1494          *params = 0;
1495          break;
1496
1497       default:
1498          goto invalid_pname;
1499    }
1500
1501    /* no error if we get here */
1502    return;
1503
1504 invalid_pname:
1505    _mesa_error(ctx, GL_INVALID_ENUM,
1506                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1507                _mesa_enum_to_string(pname));
1508 }
1509
1510
1511 /**
1512  * Handle a glGetTexLevelParamteriv() call for a texture buffer.
1513  */
1514 static void
1515 get_tex_level_parameter_buffer(struct gl_context *ctx,
1516                                const struct gl_texture_object *texObj,
1517                                GLenum pname, GLint *params, bool dsa)
1518 {
1519    const struct gl_buffer_object *bo = texObj->BufferObject;
1520    mesa_format texFormat = texObj->_BufferObjectFormat;
1521    int bytes = MAX2(1, _mesa_get_format_bytes(texFormat));
1522    GLenum internalFormat = texObj->BufferObjectFormat;
1523    GLenum baseFormat = _mesa_get_format_base_format(texFormat);
1524    const char *suffix = dsa ? "ture" : "";
1525
1526    assert(texObj->Target == GL_TEXTURE_BUFFER);
1527
1528    if (!bo) {
1529       /* undefined texture buffer object */
1530       switch (pname) {
1531       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1532          *params = GL_TRUE;
1533          break;
1534       case GL_TEXTURE_INTERNAL_FORMAT:
1535          *params = internalFormat;
1536          break;
1537       default:
1538          *params = 0;
1539          break;
1540       }
1541       return;
1542    }
1543
1544    switch (pname) {
1545       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1546          *params = bo->Name;
1547          break;
1548       case GL_TEXTURE_WIDTH:
1549          *params = ((texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize)
1550             / bytes;
1551          break;
1552       case GL_TEXTURE_HEIGHT:
1553       case GL_TEXTURE_DEPTH:
1554          *params = 1;
1555          break;
1556       case GL_TEXTURE_BORDER:
1557       case GL_TEXTURE_SHARED_SIZE:
1558       case GL_TEXTURE_COMPRESSED:
1559          *params = 0;
1560          break;
1561       case GL_TEXTURE_INTERNAL_FORMAT:
1562          *params = internalFormat;
1563          break;
1564       case GL_TEXTURE_RED_SIZE:
1565       case GL_TEXTURE_GREEN_SIZE:
1566       case GL_TEXTURE_BLUE_SIZE:
1567       case GL_TEXTURE_ALPHA_SIZE:
1568          if (_mesa_base_format_has_channel(baseFormat, pname))
1569             *params = _mesa_get_format_bits(texFormat, pname);
1570          else
1571             *params = 0;
1572          break;
1573       case GL_TEXTURE_INTENSITY_SIZE:
1574       case GL_TEXTURE_LUMINANCE_SIZE:
1575          if (_mesa_base_format_has_channel(baseFormat, pname)) {
1576             *params = _mesa_get_format_bits(texFormat, pname);
1577             if (*params == 0) {
1578                /* intensity or luminance is probably stored as RGB[A] */
1579                *params = MIN2(_mesa_get_format_bits(texFormat,
1580                                                     GL_TEXTURE_RED_SIZE),
1581                               _mesa_get_format_bits(texFormat,
1582                                                     GL_TEXTURE_GREEN_SIZE));
1583             }
1584          } else {
1585             *params = 0;
1586          }
1587          break;
1588       case GL_TEXTURE_DEPTH_SIZE_ARB:
1589       case GL_TEXTURE_STENCIL_SIZE_EXT:
1590          *params = _mesa_get_format_bits(texFormat, pname);
1591          break;
1592
1593       /* GL_ARB_texture_buffer_range */
1594       case GL_TEXTURE_BUFFER_OFFSET:
1595          if (!ctx->Extensions.ARB_texture_buffer_range)
1596             goto invalid_pname;
1597          *params = texObj->BufferOffset;
1598          break;
1599       case GL_TEXTURE_BUFFER_SIZE:
1600          if (!ctx->Extensions.ARB_texture_buffer_range)
1601             goto invalid_pname;
1602          *params = (texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize;
1603          break;
1604
1605       /* GL_ARB_texture_multisample */
1606       case GL_TEXTURE_SAMPLES:
1607          if (!ctx->Extensions.ARB_texture_multisample)
1608             goto invalid_pname;
1609          *params = 0;
1610          break;
1611
1612       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1613          if (!ctx->Extensions.ARB_texture_multisample)
1614             goto invalid_pname;
1615          *params = GL_TRUE;
1616          break;
1617
1618       /* GL_ARB_texture_compression */
1619       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1620          /* Always illegal for GL_TEXTURE_BUFFER */
1621          _mesa_error(ctx, GL_INVALID_OPERATION,
1622                      "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1623                      _mesa_enum_to_string(pname));
1624          break;
1625
1626       /* GL_ARB_texture_float */
1627       case GL_TEXTURE_RED_TYPE_ARB:
1628       case GL_TEXTURE_GREEN_TYPE_ARB:
1629       case GL_TEXTURE_BLUE_TYPE_ARB:
1630       case GL_TEXTURE_ALPHA_TYPE_ARB:
1631       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1632       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1633       case GL_TEXTURE_DEPTH_TYPE_ARB:
1634          if (!ctx->Extensions.ARB_texture_float)
1635             goto invalid_pname;
1636          if (_mesa_base_format_has_channel(baseFormat, pname))
1637             *params = _mesa_get_format_datatype(texFormat);
1638          else
1639             *params = GL_NONE;
1640          break;
1641
1642       default:
1643          goto invalid_pname;
1644    }
1645
1646    /* no error if we get here */
1647    return;
1648
1649 invalid_pname:
1650    _mesa_error(ctx, GL_INVALID_ENUM,
1651                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1652                _mesa_enum_to_string(pname));
1653 }
1654
1655 static bool
1656 valid_tex_level_parameteriv_target(struct gl_context *ctx, GLenum target,
1657                                    bool dsa)
1658 {
1659    const char *suffix = dsa ? "ture" : "";
1660    if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, dsa)) {
1661       _mesa_error(ctx, GL_INVALID_ENUM,
1662                   "glGetTex%sLevelParameter[if]v(target=%s)", suffix,
1663                   _mesa_enum_to_string(target));
1664       return false;
1665    }
1666    return true;
1667 }
1668
1669 /**
1670  * This isn't exposed to the rest of the driver because it is a part of the
1671  * OpenGL API that is rarely used.
1672  */
1673 static void
1674 get_tex_level_parameteriv(struct gl_context *ctx,
1675                           struct gl_texture_object *texObj,
1676                           GLenum target, GLint level,
1677                           GLenum pname, GLint *params,
1678                           bool dsa)
1679 {
1680    GLint maxLevels;
1681    const char *suffix = dsa ? "ture" : "";
1682
1683    /* Check for errors */
1684    if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
1685       _mesa_error(ctx, GL_INVALID_OPERATION,
1686                   "glGetTex%sLevelParameter[if]v("
1687                   "current unit >= max combined texture units)", suffix);
1688       return;
1689    }
1690
1691    maxLevels = _mesa_max_texture_levels(ctx, target);
1692    assert(maxLevels != 0);
1693
1694    if (level < 0 || level >= maxLevels) {
1695       _mesa_error(ctx, GL_INVALID_VALUE,
1696                   "glGetTex%sLevelParameter[if]v(level out of range)", suffix);
1697       return;
1698    }
1699
1700    /* Get the level parameter */
1701    if (target == GL_TEXTURE_BUFFER) {
1702       get_tex_level_parameter_buffer(ctx, texObj, pname, params, dsa);
1703    }
1704    else {
1705       get_tex_level_parameter_image(ctx, texObj, target,
1706                                     level, pname, params, dsa);
1707    }
1708 }
1709
1710 void GLAPIENTRY
1711 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
1712                               GLenum pname, GLfloat *params )
1713 {
1714    struct gl_texture_object *texObj;
1715    GLint iparam;
1716    GET_CURRENT_CONTEXT(ctx);
1717
1718    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1719       return;
1720
1721    texObj = _mesa_get_current_tex_object(ctx, target);
1722    if (!texObj)
1723       return;
1724
1725    get_tex_level_parameteriv(ctx, texObj, target, level,
1726                              pname, &iparam, false);
1727
1728    *params = (GLfloat) iparam;
1729 }
1730
1731 void GLAPIENTRY
1732 _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
1733                               GLenum pname, GLint *params )
1734 {
1735    struct gl_texture_object *texObj;
1736    GET_CURRENT_CONTEXT(ctx);
1737
1738    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1739       return;
1740
1741    texObj = _mesa_get_current_tex_object(ctx, target);
1742    if (!texObj)
1743       return;
1744
1745    get_tex_level_parameteriv(ctx, texObj, target, level,
1746                              pname, params, false);
1747 }
1748
1749 void GLAPIENTRY
1750 _mesa_GetTextureLevelParameterfv(GLuint texture, GLint level,
1751                                  GLenum pname, GLfloat *params)
1752 {
1753    struct gl_texture_object *texObj;
1754    GLint iparam;
1755    GET_CURRENT_CONTEXT(ctx);
1756
1757    texObj = _mesa_lookup_texture_err(ctx, texture,
1758                                      "glGetTextureLevelParameterfv");
1759    if (!texObj)
1760       return;
1761
1762    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1763       return;
1764
1765    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1766                              pname, &iparam, true);
1767
1768    *params = (GLfloat) iparam;
1769 }
1770
1771 void GLAPIENTRY
1772 _mesa_GetTextureLevelParameteriv(GLuint texture, GLint level,
1773                                  GLenum pname, GLint *params)
1774 {
1775    struct gl_texture_object *texObj;
1776    GET_CURRENT_CONTEXT(ctx);
1777
1778    texObj = _mesa_lookup_texture_err(ctx, texture,
1779                                      "glGetTextureLevelParameteriv");
1780    if (!texObj)
1781       return;
1782
1783    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1784       return;
1785
1786    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1787                              pname, params, true);
1788 }
1789
1790 /**
1791  * This isn't exposed to the rest of the driver because it is a part of the
1792  * OpenGL API that is rarely used.
1793  */
1794 static void
1795 get_tex_parameterfv(struct gl_context *ctx,
1796                     struct gl_texture_object *obj,
1797                     GLenum pname, GLfloat *params, bool dsa)
1798 {
1799    _mesa_lock_context_textures(ctx);
1800    switch (pname) {
1801       case GL_TEXTURE_MAG_FILTER:
1802          *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
1803          break;
1804       case GL_TEXTURE_MIN_FILTER:
1805          *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
1806          break;
1807       case GL_TEXTURE_WRAP_S:
1808          *params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
1809          break;
1810       case GL_TEXTURE_WRAP_T:
1811          *params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
1812          break;
1813       case GL_TEXTURE_WRAP_R:
1814          *params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
1815          break;
1816       case GL_TEXTURE_BORDER_COLOR:
1817          if (ctx->API == API_OPENGLES ||
1818              !ctx->Extensions.ARB_texture_border_clamp)
1819             goto invalid_pname;
1820
1821          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1822             _mesa_update_state_locked(ctx);
1823          if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
1824             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
1825             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
1826             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
1827             params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
1828          }
1829          else {
1830             params[0] = obj->Sampler.BorderColor.f[0];
1831             params[1] = obj->Sampler.BorderColor.f[1];
1832             params[2] = obj->Sampler.BorderColor.f[2];
1833             params[3] = obj->Sampler.BorderColor.f[3];
1834          }
1835          break;
1836       case GL_TEXTURE_RESIDENT:
1837          if (ctx->API != API_OPENGL_COMPAT)
1838             goto invalid_pname;
1839
1840          *params = 1.0F;
1841          break;
1842       case GL_TEXTURE_PRIORITY:
1843          if (ctx->API != API_OPENGL_COMPAT)
1844             goto invalid_pname;
1845
1846          *params = obj->Priority;
1847          break;
1848       case GL_TEXTURE_MIN_LOD:
1849          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1850             goto invalid_pname;
1851
1852          *params = obj->Sampler.MinLod;
1853          break;
1854       case GL_TEXTURE_MAX_LOD:
1855          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1856             goto invalid_pname;
1857
1858          *params = obj->Sampler.MaxLod;
1859          break;
1860       case GL_TEXTURE_BASE_LEVEL:
1861          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1862             goto invalid_pname;
1863
1864          *params = (GLfloat) obj->BaseLevel;
1865          break;
1866       case GL_TEXTURE_MAX_LEVEL:
1867          *params = (GLfloat) obj->MaxLevel;
1868          break;
1869       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1870          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
1871             goto invalid_pname;
1872          *params = obj->Sampler.MaxAnisotropy;
1873          break;
1874       case GL_GENERATE_MIPMAP_SGIS:
1875          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1876             goto invalid_pname;
1877
1878          *params = (GLfloat) obj->GenerateMipmap;
1879          break;
1880       case GL_TEXTURE_COMPARE_MODE_ARB:
1881          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
1882              && !_mesa_is_gles3(ctx))
1883             goto invalid_pname;
1884          *params = (GLfloat) obj->Sampler.CompareMode;
1885          break;
1886       case GL_TEXTURE_COMPARE_FUNC_ARB:
1887          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
1888              && !_mesa_is_gles3(ctx))
1889             goto invalid_pname;
1890          *params = (GLfloat) obj->Sampler.CompareFunc;
1891          break;
1892       case GL_DEPTH_TEXTURE_MODE_ARB:
1893          /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has
1894           * never existed in OpenGL ES.
1895           */
1896          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
1897             goto invalid_pname;
1898          *params = (GLfloat) obj->DepthMode;
1899          break;
1900       case GL_DEPTH_STENCIL_TEXTURE_MODE:
1901          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
1902             goto invalid_pname;
1903          *params = (GLfloat)
1904             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
1905          break;
1906       case GL_TEXTURE_LOD_BIAS:
1907          if (_mesa_is_gles(ctx))
1908             goto invalid_pname;
1909
1910          *params = obj->Sampler.LodBias;
1911          break;
1912       case GL_TEXTURE_CROP_RECT_OES:
1913          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
1914             goto invalid_pname;
1915
1916          params[0] = (GLfloat) obj->CropRect[0];
1917          params[1] = (GLfloat) obj->CropRect[1];
1918          params[2] = (GLfloat) obj->CropRect[2];
1919          params[3] = (GLfloat) obj->CropRect[3];
1920          break;
1921
1922       case GL_TEXTURE_SWIZZLE_R_EXT:
1923       case GL_TEXTURE_SWIZZLE_G_EXT:
1924       case GL_TEXTURE_SWIZZLE_B_EXT:
1925       case GL_TEXTURE_SWIZZLE_A_EXT:
1926          if ((!_mesa_is_desktop_gl(ctx)
1927               || !ctx->Extensions.EXT_texture_swizzle)
1928              && !_mesa_is_gles3(ctx))
1929             goto invalid_pname;
1930          *params = (GLfloat) obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
1931          break;
1932
1933       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
1934          if ((!_mesa_is_desktop_gl(ctx)
1935               || !ctx->Extensions.EXT_texture_swizzle)
1936              && !_mesa_is_gles3(ctx)) {
1937             goto invalid_pname;
1938          }
1939          else {
1940             GLuint comp;
1941             for (comp = 0; comp < 4; comp++) {
1942                params[comp] = (GLfloat) obj->Swizzle[comp];
1943             }
1944          }
1945          break;
1946
1947       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1948          if (!_mesa_is_desktop_gl(ctx)
1949              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
1950             goto invalid_pname;
1951          *params = (GLfloat) obj->Sampler.CubeMapSeamless;
1952          break;
1953
1954       case GL_TEXTURE_IMMUTABLE_FORMAT:
1955          *params = (GLfloat) obj->Immutable;
1956          break;
1957
1958       case GL_TEXTURE_IMMUTABLE_LEVELS:
1959          if (_mesa_is_gles3(ctx) ||
1960              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
1961             *params = (GLfloat) obj->ImmutableLevels;
1962          else
1963             goto invalid_pname;
1964          break;
1965
1966       case GL_TEXTURE_VIEW_MIN_LEVEL:
1967          if (!ctx->Extensions.ARB_texture_view)
1968             goto invalid_pname;
1969          *params = (GLfloat) obj->MinLevel;
1970          break;
1971
1972       case GL_TEXTURE_VIEW_NUM_LEVELS:
1973          if (!ctx->Extensions.ARB_texture_view)
1974             goto invalid_pname;
1975          *params = (GLfloat) obj->NumLevels;
1976          break;
1977
1978       case GL_TEXTURE_VIEW_MIN_LAYER:
1979          if (!ctx->Extensions.ARB_texture_view)
1980             goto invalid_pname;
1981          *params = (GLfloat) obj->MinLayer;
1982          break;
1983
1984       case GL_TEXTURE_VIEW_NUM_LAYERS:
1985          if (!ctx->Extensions.ARB_texture_view)
1986             goto invalid_pname;
1987          *params = (GLfloat) obj->NumLayers;
1988          break;
1989
1990       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
1991          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
1992             goto invalid_pname;
1993          *params = (GLfloat) obj->RequiredTextureImageUnits;
1994          break;
1995
1996       case GL_TEXTURE_SRGB_DECODE_EXT:
1997          if (!ctx->Extensions.EXT_texture_sRGB_decode)
1998             goto invalid_pname;
1999          *params = (GLfloat) obj->Sampler.sRGBDecode;
2000          break;
2001
2002       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2003          if (!ctx->Extensions.ARB_shader_image_load_store)
2004             goto invalid_pname;
2005          *params = (GLfloat) obj->ImageFormatCompatibilityType;
2006          break;
2007
2008       case GL_TEXTURE_TARGET:
2009          if (ctx->API != API_OPENGL_CORE)
2010             goto invalid_pname;
2011          *params = ENUM_TO_FLOAT(obj->Target);
2012          break;
2013
2014       default:
2015          goto invalid_pname;
2016    }
2017
2018    /* no error if we get here */
2019    _mesa_unlock_context_textures(ctx);
2020    return;
2021
2022 invalid_pname:
2023    _mesa_unlock_context_textures(ctx);
2024    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameterfv(pname=0x%x)",
2025                dsa ? "ture" : "", pname);
2026 }
2027
2028
2029 static void
2030 get_tex_parameteriv(struct gl_context *ctx,
2031                     struct gl_texture_object *obj,
2032                     GLenum pname, GLint *params, bool dsa)
2033 {
2034    _mesa_lock_texture(ctx, obj);
2035    switch (pname) {
2036       case GL_TEXTURE_MAG_FILTER:
2037          *params = (GLint) obj->Sampler.MagFilter;
2038          break;
2039       case GL_TEXTURE_MIN_FILTER:
2040          *params = (GLint) obj->Sampler.MinFilter;
2041          break;
2042       case GL_TEXTURE_WRAP_S:
2043          *params = (GLint) obj->Sampler.WrapS;
2044          break;
2045       case GL_TEXTURE_WRAP_T:
2046          *params = (GLint) obj->Sampler.WrapT;
2047          break;
2048       case GL_TEXTURE_WRAP_R:
2049          *params = (GLint) obj->Sampler.WrapR;
2050          break;
2051       case GL_TEXTURE_BORDER_COLOR:
2052          if (ctx->API == API_OPENGLES ||
2053              !ctx->Extensions.ARB_texture_border_clamp)
2054             goto invalid_pname;
2055
2056          {
2057             GLfloat b[4];
2058             b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
2059             b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
2060             b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
2061             b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
2062             params[0] = FLOAT_TO_INT(b[0]);
2063             params[1] = FLOAT_TO_INT(b[1]);
2064             params[2] = FLOAT_TO_INT(b[2]);
2065             params[3] = FLOAT_TO_INT(b[3]);
2066          }
2067          break;
2068       case GL_TEXTURE_RESIDENT:
2069          if (ctx->API != API_OPENGL_COMPAT)
2070             goto invalid_pname;
2071
2072          *params = 1;
2073          break;
2074       case GL_TEXTURE_PRIORITY:
2075          if (ctx->API != API_OPENGL_COMPAT)
2076             goto invalid_pname;
2077
2078          *params = FLOAT_TO_INT(obj->Priority);
2079          break;
2080       case GL_TEXTURE_MIN_LOD:
2081          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2082             goto invalid_pname;
2083          /* GL spec 'Data Conversions' section specifies that floating-point
2084           * value in integer Get function is rounded to nearest integer
2085           */
2086          *params = IROUND(obj->Sampler.MinLod);
2087          break;
2088       case GL_TEXTURE_MAX_LOD:
2089          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2090             goto invalid_pname;
2091          /* GL spec 'Data Conversions' section specifies that floating-point
2092           * value in integer Get function is rounded to nearest integer
2093           */
2094          *params = IROUND(obj->Sampler.MaxLod);
2095          break;
2096       case GL_TEXTURE_BASE_LEVEL:
2097          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2098             goto invalid_pname;
2099
2100          *params = obj->BaseLevel;
2101          break;
2102       case GL_TEXTURE_MAX_LEVEL:
2103          *params = obj->MaxLevel;
2104          break;
2105       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
2106          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
2107             goto invalid_pname;
2108          /* GL spec 'Data Conversions' section specifies that floating-point
2109           * value in integer Get function is rounded to nearest integer
2110           */
2111          *params = IROUND(obj->Sampler.MaxAnisotropy);
2112          break;
2113       case GL_GENERATE_MIPMAP_SGIS:
2114          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
2115             goto invalid_pname;
2116
2117          *params = (GLint) obj->GenerateMipmap;
2118          break;
2119       case GL_TEXTURE_COMPARE_MODE_ARB:
2120          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2121              && !_mesa_is_gles3(ctx))
2122             goto invalid_pname;
2123          *params = (GLint) obj->Sampler.CompareMode;
2124          break;
2125       case GL_TEXTURE_COMPARE_FUNC_ARB:
2126          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2127              && !_mesa_is_gles3(ctx))
2128             goto invalid_pname;
2129          *params = (GLint) obj->Sampler.CompareFunc;
2130          break;
2131       case GL_DEPTH_TEXTURE_MODE_ARB:
2132          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
2133             goto invalid_pname;
2134          *params = (GLint) obj->DepthMode;
2135          break;
2136       case GL_DEPTH_STENCIL_TEXTURE_MODE:
2137          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
2138             goto invalid_pname;
2139          *params = (GLint)
2140             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
2141          break;
2142       case GL_TEXTURE_LOD_BIAS:
2143          if (_mesa_is_gles(ctx))
2144             goto invalid_pname;
2145
2146          /* GL spec 'Data Conversions' section specifies that floating-point
2147           * value in integer Get function is rounded to nearest integer
2148           */
2149          *params = IROUND(obj->Sampler.LodBias);
2150          break;
2151       case GL_TEXTURE_CROP_RECT_OES:
2152          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
2153             goto invalid_pname;
2154
2155          params[0] = obj->CropRect[0];
2156          params[1] = obj->CropRect[1];
2157          params[2] = obj->CropRect[2];
2158          params[3] = obj->CropRect[3];
2159          break;
2160       case GL_TEXTURE_SWIZZLE_R_EXT:
2161       case GL_TEXTURE_SWIZZLE_G_EXT:
2162       case GL_TEXTURE_SWIZZLE_B_EXT:
2163       case GL_TEXTURE_SWIZZLE_A_EXT:
2164          if ((!_mesa_is_desktop_gl(ctx)
2165               || !ctx->Extensions.EXT_texture_swizzle)
2166              && !_mesa_is_gles3(ctx))
2167             goto invalid_pname;
2168          *params = obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
2169          break;
2170
2171       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
2172          if ((!_mesa_is_desktop_gl(ctx)
2173               || !ctx->Extensions.EXT_texture_swizzle)
2174              && !_mesa_is_gles3(ctx))
2175             goto invalid_pname;
2176          COPY_4V(params, obj->Swizzle);
2177          break;
2178
2179       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
2180          if (!_mesa_is_desktop_gl(ctx)
2181              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
2182             goto invalid_pname;
2183          *params = (GLint) obj->Sampler.CubeMapSeamless;
2184          break;
2185
2186       case GL_TEXTURE_IMMUTABLE_FORMAT:
2187          *params = (GLint) obj->Immutable;
2188          break;
2189
2190       case GL_TEXTURE_IMMUTABLE_LEVELS:
2191          if (_mesa_is_gles3(ctx) ||
2192              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
2193             *params = obj->ImmutableLevels;
2194          else
2195             goto invalid_pname;
2196          break;
2197
2198       case GL_TEXTURE_VIEW_MIN_LEVEL:
2199          if (!ctx->Extensions.ARB_texture_view)
2200             goto invalid_pname;
2201          *params = (GLint) obj->MinLevel;
2202          break;
2203
2204       case GL_TEXTURE_VIEW_NUM_LEVELS:
2205          if (!ctx->Extensions.ARB_texture_view)
2206             goto invalid_pname;
2207          *params = (GLint) obj->NumLevels;
2208          break;
2209
2210       case GL_TEXTURE_VIEW_MIN_LAYER:
2211          if (!ctx->Extensions.ARB_texture_view)
2212             goto invalid_pname;
2213          *params = (GLint) obj->MinLayer;
2214          break;
2215
2216       case GL_TEXTURE_VIEW_NUM_LAYERS:
2217          if (!ctx->Extensions.ARB_texture_view)
2218             goto invalid_pname;
2219          *params = (GLint) obj->NumLayers;
2220          break;
2221
2222       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
2223          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
2224             goto invalid_pname;
2225          *params = obj->RequiredTextureImageUnits;
2226          break;
2227
2228       case GL_TEXTURE_SRGB_DECODE_EXT:
2229          if (!ctx->Extensions.EXT_texture_sRGB_decode)
2230             goto invalid_pname;
2231          *params = obj->Sampler.sRGBDecode;
2232          break;
2233
2234       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2235          if (!ctx->Extensions.ARB_shader_image_load_store)
2236             goto invalid_pname;
2237          *params = obj->ImageFormatCompatibilityType;
2238          break;
2239
2240       case GL_TEXTURE_TARGET:
2241          if (ctx->API != API_OPENGL_CORE)
2242             goto invalid_pname;
2243          *params = (GLint) obj->Target;
2244          break;
2245
2246       default:
2247          goto invalid_pname;
2248    }
2249
2250    /* no error if we get here */
2251    _mesa_unlock_texture(ctx, obj);
2252    return;
2253
2254 invalid_pname:
2255    _mesa_unlock_texture(ctx, obj);
2256    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameteriv(pname=0x%x)",
2257                dsa ? "ture" : "", pname);
2258 }
2259
2260 static void
2261 get_tex_parameterIiv(struct gl_context *ctx,
2262                      struct gl_texture_object *obj,
2263                      GLenum pname, GLint *params, bool dsa)
2264 {
2265    switch (pname) {
2266    case GL_TEXTURE_BORDER_COLOR:
2267       COPY_4V(params, obj->Sampler.BorderColor.i);
2268       break;
2269    default:
2270       get_tex_parameteriv(ctx, obj, pname, params, dsa);
2271    }
2272 }
2273
2274 static void
2275 get_tex_parameterIuiv(struct gl_context *ctx,
2276                       struct gl_texture_object *obj,
2277                       GLenum pname, GLuint *params, bool dsa)
2278 {
2279    switch (pname) {
2280    case GL_TEXTURE_BORDER_COLOR:
2281       COPY_4V(params, obj->Sampler.BorderColor.i);
2282       break;
2283    default:
2284       {
2285          GLint ip[4];
2286          get_tex_parameteriv(ctx, obj, pname, ip, dsa);
2287          params[0] = ip[0];
2288          if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT ||
2289              pname == GL_TEXTURE_CROP_RECT_OES) {
2290             params[1] = ip[1];
2291             params[2] = ip[2];
2292             params[3] = ip[3];
2293          }
2294       }
2295    }
2296 }
2297
2298 void GLAPIENTRY
2299 _mesa_GetTexParameterfv(GLenum target, GLenum pname, GLfloat *params)
2300 {
2301    struct gl_texture_object *obj;
2302    GET_CURRENT_CONTEXT(ctx);
2303
2304    obj = get_texobj_by_target(ctx, target, GL_TRUE);
2305    if (!obj)
2306       return;
2307
2308    get_tex_parameterfv(ctx, obj, pname, params, false);
2309 }
2310
2311 void GLAPIENTRY
2312 _mesa_GetTexParameteriv(GLenum target, GLenum pname, GLint *params)
2313 {
2314    struct gl_texture_object *obj;
2315    GET_CURRENT_CONTEXT(ctx);
2316
2317    obj = get_texobj_by_target(ctx, target, GL_TRUE);
2318    if (!obj)
2319       return;
2320
2321    get_tex_parameteriv(ctx, obj, pname, params, false);
2322 }
2323
2324 /** New in GL 3.0 */
2325 void GLAPIENTRY
2326 _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
2327 {
2328    struct gl_texture_object *texObj;
2329    GET_CURRENT_CONTEXT(ctx);
2330
2331    texObj = get_texobj_by_target(ctx, target, GL_TRUE);
2332    if (!texObj)
2333       return;
2334
2335    get_tex_parameterIiv(ctx, texObj, pname, params, false);
2336 }
2337
2338
2339 /** New in GL 3.0 */
2340 void GLAPIENTRY
2341 _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
2342 {
2343    struct gl_texture_object *texObj;
2344    GET_CURRENT_CONTEXT(ctx);
2345
2346    texObj = get_texobj_by_target(ctx, target, GL_TRUE);
2347    if (!texObj)
2348       return;
2349
2350    get_tex_parameterIuiv(ctx, texObj, pname, params, false);
2351 }
2352
2353
2354 void GLAPIENTRY
2355 _mesa_GetTextureParameterfv(GLuint texture, GLenum pname, GLfloat *params)
2356 {
2357    struct gl_texture_object *obj;
2358    GET_CURRENT_CONTEXT(ctx);
2359
2360    obj = get_texobj_by_name(ctx, texture, "glGetTextureParameterfv");
2361    if (!obj)
2362       return;
2363
2364    get_tex_parameterfv(ctx, obj, pname, params, true);
2365 }
2366
2367 void GLAPIENTRY
2368 _mesa_GetTextureParameteriv(GLuint texture, GLenum pname, GLint *params)
2369 {
2370    struct gl_texture_object *obj;
2371    GET_CURRENT_CONTEXT(ctx);
2372
2373    obj = get_texobj_by_name(ctx, texture, "glGetTextureParameteriv");
2374    if (!obj)
2375       return;
2376
2377    get_tex_parameteriv(ctx, obj, pname, params, true);
2378 }
2379
2380 void GLAPIENTRY
2381 _mesa_GetTextureParameterIiv(GLuint texture, GLenum pname, GLint *params)
2382 {
2383    struct gl_texture_object *texObj;
2384    GET_CURRENT_CONTEXT(ctx);
2385
2386    texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIiv");
2387    if (!texObj)
2388       return;
2389
2390    get_tex_parameterIiv(ctx, texObj, pname, params, true);
2391 }
2392
2393
2394 void GLAPIENTRY
2395 _mesa_GetTextureParameterIuiv(GLuint texture, GLenum pname, GLuint *params)
2396 {
2397    struct gl_texture_object *texObj;
2398    GET_CURRENT_CONTEXT(ctx);
2399
2400    texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIuiv");
2401    if (!texObj)
2402       return;
2403
2404    get_tex_parameterIuiv(ctx, texObj, pname, params, true);
2405 }