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 static bool
 118 is_texparameteri_target_valid(GLenum target)
 119 {
 120    switch (target) {
 121    case GL_TEXTURE_1D:
 122    case GL_TEXTURE_1D_ARRAY:
 123    case GL_TEXTURE_2D:
 124    case GL_TEXTURE_2D_ARRAY:
 125    case GL_TEXTURE_2D_MULTISAMPLE:
 126    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
 127    case GL_TEXTURE_3D:
 128    case GL_TEXTURE_CUBE_MAP:
 129    case GL_TEXTURE_CUBE_MAP_ARRAY:
 130    case GL_TEXTURE_RECTANGLE:
 131       return true;
 132    default:
 133       return false;
 134    }
 135 }
 136
 137
 138 /**
 139  * Get current texture object for given name.
 140  * Return NULL if any error (and record the error).
 141  * Note that proxy targets are not accepted.
 142  * Only the glGetTexLevelParameter() functions accept proxy targets.
 143  */
 144 static struct gl_texture_object *
 145 get_texobj_by_name(struct gl_context *ctx, GLuint texture, const char *name)
 146 {
 147    struct gl_texture_object *texObj;
 148
 149    texObj = _mesa_lookup_texture_err(ctx, texture, name);
 150    if (!texObj)
 151       return NULL;
 152
 153    if (!is_texparameteri_target_valid(texObj->Target)) {
 154       _mesa_error(ctx, GL_INVALID_OPERATION, "%s(target)", name);
 155       return NULL;
 156    }
 157
 158    return texObj;
 159 }
 160
 161
 162 /**
 163  * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
 164  * \return -1 if error.
 165  */
 166 static GLint
 167 comp_to_swizzle(GLenum comp)
 168 {
 169    switch (comp) {
 170    case GL_RED:
 171       return SWIZZLE_X;
 172    case GL_GREEN:
 173       return SWIZZLE_Y;
 174    case GL_BLUE:
 175       return SWIZZLE_Z;
 176    case GL_ALPHA:
 177       return SWIZZLE_W;
 178    case GL_ZERO:
 179       return SWIZZLE_ZERO;
 180    case GL_ONE:
 181       return SWIZZLE_ONE;
 182    default:
 183       return -1;
 184    }
 185 }
 186
 187
 188 static void
 189 set_swizzle_component(GLushort *swizzle, GLuint comp, GLuint swz)
 190 {
 191    assert(comp < 4);
 192    assert(swz <= SWIZZLE_NIL);
 193    {
 194       GLuint mask = 0x7 << (3 * comp);
 195       GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));
 196       *swizzle = s;
 197    }
 198 }
 199
 200
 201 /**
 202  * This is called just prior to changing any texture object state which
 203  * will not affect texture completeness.
 204  */
 205 static inline void
 206 flush(struct gl_context *ctx)
 207 {
 208    FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
 209 }
 210
 211
 212 /**
 213  * This is called just prior to changing any texture object state which
 214  * could affect texture completeness (texture base level, max level).
 215  * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE_OBJECT
 216  * state flag and then mark the texture object as 'incomplete' so that any
 217  * per-texture derived state gets recomputed.
 218  */
 219 static inline void
 220 incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
 221 {
 222    FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
 223    _mesa_dirty_texobj(ctx, texObj);
 224 }
 225
 226
 227 GLboolean
 228 _mesa_target_allows_setting_sampler_parameters(GLenum target)
 229 {
 230    switch (target) {
 231    case GL_TEXTURE_2D_MULTISAMPLE:
 232    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
 233       return GL_FALSE;
 234
 235    default:
 236       return GL_TRUE;
 237    }
 238 }
 239
 240
 241 /**
 242  * Set an integer-valued texture parameter
 243  * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
 244  */
 245 static GLboolean
 246 set_tex_parameteri(struct gl_context *ctx,
 247                    struct gl_texture_object *texObj,
 248                    GLenum pname, const GLint *params, bool dsa)
 249 {
 250    const char *suffix = dsa ? "ture" : "";
 251
 252    if (texObj->HandleAllocated) {
 253       /* The ARB_bindless_texture spec says:
 254        *
 255        * "The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
 256        * CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
 257        * functions defined in terms of these, if the texture object to be
 258        * modified is referenced by one or more texture or image handles."
 259        */
 260       _mesa_error(ctx, GL_INVALID_OPERATION,
 261                   "glTex%sParameter(immutable texture)", suffix);
 262       return GL_FALSE;
 263    }
 264
 265    switch (pname) {
 266    case GL_TEXTURE_MIN_FILTER:
 267       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 268          goto invalid_enum;
 269
 270       if (texObj->Sampler.MinFilter == params[0])
 271          return GL_FALSE;
 272       switch (params[0]) {
 273       case GL_NEAREST:
 274       case GL_LINEAR:
 275          flush(ctx);
 276          texObj->Sampler.MinFilter = params[0];
 277          return GL_TRUE;
 278       case GL_NEAREST_MIPMAP_NEAREST:
 279       case GL_LINEAR_MIPMAP_NEAREST:
 280       case GL_NEAREST_MIPMAP_LINEAR:
 281       case GL_LINEAR_MIPMAP_LINEAR:
 282          if (texObj->Target != GL_TEXTURE_RECTANGLE_NV &&
 283              texObj->Target != GL_TEXTURE_EXTERNAL_OES) {
 284             flush(ctx);
 285             texObj->Sampler.MinFilter = params[0];
 286             return GL_TRUE;
 287          }
 288          /* fall-through */
 289       default:
 290          goto invalid_param;
 291       }
 292       return GL_FALSE;
 293
 294    case GL_TEXTURE_MAG_FILTER:
 295       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 296          goto invalid_enum;
 297
 298       if (texObj->Sampler.MagFilter == params[0])
 299          return GL_FALSE;
 300       switch (params[0]) {
 301       case GL_NEAREST:
 302       case GL_LINEAR:
 303          flush(ctx); /* does not effect completeness */
 304          texObj->Sampler.MagFilter = params[0];
 305          return GL_TRUE;
 306       default:
 307          goto invalid_param;
 308       }
 309       return GL_FALSE;
 310
 311    case GL_TEXTURE_WRAP_S:
 312       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 313          goto invalid_enum;
 314
 315       if (texObj->Sampler.WrapS == params[0])
 316          return GL_FALSE;
 317       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 318          flush(ctx);
 319          texObj->Sampler.WrapS = params[0];
 320          return GL_TRUE;
 321       }
 322       return GL_FALSE;
 323
 324    case GL_TEXTURE_WRAP_T:
 325       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 326          goto invalid_enum;
 327
 328       if (texObj->Sampler.WrapT == params[0])
 329          return GL_FALSE;
 330       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 331          flush(ctx);
 332          texObj->Sampler.WrapT = params[0];
 333          return GL_TRUE;
 334       }
 335       return GL_FALSE;
 336
 337    case GL_TEXTURE_WRAP_R:
 338       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 339          goto invalid_enum;
 340
 341       if (texObj->Sampler.WrapR == params[0])
 342          return GL_FALSE;
 343       if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
 344          flush(ctx);
 345          texObj->Sampler.WrapR = params[0];
 346          return GL_TRUE;
 347       }
 348       return GL_FALSE;
 349
 350    case GL_TEXTURE_BASE_LEVEL:
 351       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 352          goto invalid_pname;
 353
 354       if (texObj->BaseLevel == params[0])
 355          return GL_FALSE;
 356
 357       /* Section 8.10 (Texture Parameters) of the OpenGL 4.5 Core Profile spec
 358        * says:
 359        *
 360        *    An INVALID_OPERATION error is generated if the effective target is
 361        *    TEXTURE_2D_MULTISAMPLE, TEXTURE_2D_MULTISAMPLE_ARRAY, or
 362        *    TEXTURE_RECTANGLE, and pname TEXTURE_BASE_LEVEL is set to a value
 363        *    other than zero.
 364        *
 365        * Note that section 3.8.8 (Texture Parameters) of the OpenGL 3.3 Core
 366        * Profile spec said:
 367        *
 368        *    The error INVALID_VALUE is generated if TEXTURE_BASE_LEVEL is set
 369        *    to any value other than zero.
 370        *
 371        * We take the 4.5 language as a correction to 3.3, and we implement
 372        * that on all GL versions.
 373        */
 374       if ((texObj->Target == GL_TEXTURE_2D_MULTISAMPLE ||
 375            texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY ||
 376            texObj->Target == GL_TEXTURE_RECTANGLE) && params[0] != 0)
 377          goto invalid_operation;
 378
 379       if (params[0] < 0) {
 380          _mesa_error(ctx, GL_INVALID_VALUE,
 381                      "glTex%sParameter(param=%d)", suffix, params[0]);
 382          return GL_FALSE;
 383       }
 384       incomplete(ctx, texObj);
 385
 386       /** See note about ARB_texture_storage below */
 387       if (texObj->Immutable)
 388          texObj->BaseLevel = MIN2(texObj->ImmutableLevels - 1, params[0]);
 389       else
 390          texObj->BaseLevel = params[0];
 391
 392       return GL_TRUE;
 393
 394    case GL_TEXTURE_MAX_LEVEL:
 395       if (texObj->MaxLevel == params[0])
 396          return GL_FALSE;
 397
 398       if (params[0] < 0 ||
 399           (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] > 0)) {
 400          _mesa_error(ctx, GL_INVALID_VALUE,
 401                      "glTex%sParameter(param=%d)", suffix,
 402                      params[0]);
 403          return GL_FALSE;
 404       }
 405       incomplete(ctx, texObj);
 406
 407       /** From ARB_texture_storage:
 408        * However, if TEXTURE_IMMUTABLE_FORMAT is TRUE, then level_base is
 409        * clamped to the range [0, <levels> - 1] and level_max is then clamped to
 410        * the range [level_base, <levels> - 1], where <levels> is the parameter
 411        * passed the call to TexStorage* for the texture object.
 412        */
 413       if (texObj->Immutable)
 414           texObj->MaxLevel = CLAMP(params[0], texObj->BaseLevel,
 415                                    texObj->ImmutableLevels - 1);
 416       else
 417          texObj->MaxLevel = params[0];
 418
 419       return GL_TRUE;
 420
 421    case GL_GENERATE_MIPMAP_SGIS:
 422       if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
 423          goto invalid_pname;
 424
 425       if (params[0] && texObj->Target == GL_TEXTURE_EXTERNAL_OES)
 426          goto invalid_param;
 427       if (texObj->GenerateMipmap != params[0]) {
 428          /* no flush() */
 429          texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
 430          return GL_TRUE;
 431       }
 432       return GL_FALSE;
 433
 434    case GL_TEXTURE_COMPARE_MODE_ARB:
 435       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
 436           || _mesa_is_gles3(ctx)) {
 437
 438          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 439             goto invalid_enum;
 440
 441          if (texObj->Sampler.CompareMode == params[0])
 442             return GL_FALSE;
 443          if (params[0] == GL_NONE ||
 444              params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) {
 445             flush(ctx);
 446             texObj->Sampler.CompareMode = params[0];
 447             return GL_TRUE;
 448          }
 449          goto invalid_param;
 450       }
 451       goto invalid_pname;
 452
 453    case GL_TEXTURE_COMPARE_FUNC_ARB:
 454       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow)
 455           || _mesa_is_gles3(ctx)) {
 456
 457          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 458             goto invalid_enum;
 459
 460          if (texObj->Sampler.CompareFunc == params[0])
 461             return GL_FALSE;
 462          switch (params[0]) {
 463          case GL_LEQUAL:
 464          case GL_GEQUAL:
 465          case GL_EQUAL:
 466          case GL_NOTEQUAL:
 467          case GL_LESS:
 468          case GL_GREATER:
 469          case GL_ALWAYS:
 470          case GL_NEVER:
 471             flush(ctx);
 472             texObj->Sampler.CompareFunc = params[0];
 473             return GL_TRUE;
 474          default:
 475             goto invalid_param;
 476          }
 477       }
 478       goto invalid_pname;
 479
 480    case GL_DEPTH_TEXTURE_MODE_ARB:
 481       /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has never
 482        * existed in OpenGL ES.
 483        */
 484       if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_texture) {
 485          if (texObj->DepthMode == params[0])
 486             return GL_FALSE;
 487          if (params[0] == GL_LUMINANCE ||
 488              params[0] == GL_INTENSITY ||
 489              params[0] == GL_ALPHA ||
 490              (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) {
 491             flush(ctx);
 492             texObj->DepthMode = params[0];
 493             return GL_TRUE;
 494          }
 495          goto invalid_param;
 496       }
 497       goto invalid_pname;
 498
 499    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 500       if (_mesa_has_ARB_stencil_texturing(ctx) || _mesa_is_gles31(ctx)) {
 501          bool stencil = params[0] == GL_STENCIL_INDEX;
 502          if (!stencil && params[0] != GL_DEPTH_COMPONENT)
 503             goto invalid_param;
 504
 505          if (texObj->StencilSampling == stencil)
 506             return GL_FALSE;
 507
 508          texObj->StencilSampling = stencil;
 509          return GL_TRUE;
 510       }
 511       goto invalid_pname;
 512
 513    case GL_TEXTURE_CROP_RECT_OES:
 514       if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
 515          goto invalid_pname;
 516
 517       texObj->CropRect[0] = params[0];
 518       texObj->CropRect[1] = params[1];
 519       texObj->CropRect[2] = params[2];
 520       texObj->CropRect[3] = params[3];
 521       return GL_TRUE;
 522
 523    case GL_TEXTURE_SWIZZLE_R_EXT:
 524    case GL_TEXTURE_SWIZZLE_G_EXT:
 525    case GL_TEXTURE_SWIZZLE_B_EXT:
 526    case GL_TEXTURE_SWIZZLE_A_EXT:
 527       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
 528           || _mesa_is_gles3(ctx)) {
 529          const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
 530          const GLint swz = comp_to_swizzle(params[0]);
 531          if (swz < 0) {
 532             _mesa_error(ctx, GL_INVALID_ENUM,
 533                         "glTex%sParameter(swizzle 0x%x)", suffix, params[0]);
 534             return GL_FALSE;
 535          }
 536          assert(comp < 4);
 537
 538          flush(ctx);
 539          texObj->Swizzle[comp] = params[0];
 540          set_swizzle_component(&texObj->_Swizzle, comp, swz);
 541          return GL_TRUE;
 542       }
 543       goto invalid_pname;
 544
 545    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
 546       if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle)
 547           || _mesa_is_gles3(ctx)) {
 548          GLuint comp;
 549          flush(ctx);
 550          for (comp = 0; comp < 4; comp++) {
 551             const GLint swz = comp_to_swizzle(params[comp]);
 552             if (swz >= 0) {
 553                texObj->Swizzle[comp] = params[comp];
 554                set_swizzle_component(&texObj->_Swizzle, comp, swz);
 555             }
 556             else {
 557                _mesa_error(ctx, GL_INVALID_ENUM,
 558                            "glTex%sParameter(swizzle 0x%x)",
 559                            suffix, params[comp]);
 560                return GL_FALSE;
 561             }
 562          }
 563          return GL_TRUE;
 564       }
 565       goto invalid_pname;
 566
 567    case GL_TEXTURE_SRGB_DECODE_EXT:
 568       if (ctx->Extensions.EXT_texture_sRGB_decode) {
 569          GLenum decode = params[0];
 570
 571          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 572             goto invalid_enum;
 573
 574          if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) {
 575             if (texObj->Sampler.sRGBDecode != decode) {
 576                flush(ctx);
 577                texObj->Sampler.sRGBDecode = decode;
 578             }
 579             return GL_TRUE;
 580          }
 581       }
 582       goto invalid_pname;
 583
 584    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 585       if (_mesa_is_desktop_gl(ctx)
 586           && ctx->Extensions.AMD_seamless_cubemap_per_texture) {
 587          GLenum param = params[0];
 588
 589          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 590             goto invalid_enum;
 591
 592          if (param != GL_TRUE && param != GL_FALSE) {
 593             goto invalid_param;
 594          }
 595          if (param != texObj->Sampler.CubeMapSeamless) {
 596             flush(ctx);
 597             texObj->Sampler.CubeMapSeamless = param;
 598          }
 599          return GL_TRUE;
 600       }
 601       goto invalid_pname;
 602
 603    case GL_TEXTURE_TILING_EXT:
 604       if (ctx->Extensions.EXT_memory_object) {
 605          texObj->TextureTiling = params[0];
 606
 607          return GL_TRUE;
 608       }
 609       goto invalid_pname;
 610
 611    default:
 612       goto invalid_pname;
 613    }
 614
 615 invalid_pname:
 616    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 617                suffix, _mesa_enum_to_string(pname));
 618    return GL_FALSE;
 619
 620 invalid_param:
 621    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(param=%s)",
 622                suffix, _mesa_enum_to_string(params[0]));
 623    return GL_FALSE;
 624
 625 invalid_operation:
 626    _mesa_error(ctx, GL_INVALID_OPERATION, "glTex%sParameter(pname=%s)",
 627                suffix, _mesa_enum_to_string(pname));
 628    return GL_FALSE;
 629
 630 invalid_enum:
 631    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 632                suffix, _mesa_enum_to_string(pname));
 633    return GL_FALSE;
 634 }
 635
 636
 637 /**
 638  * Set a float-valued texture parameter
 639  * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
 640  */
 641 static GLboolean
 642 set_tex_parameterf(struct gl_context *ctx,
 643                    struct gl_texture_object *texObj,
 644                    GLenum pname, const GLfloat *params, bool dsa)
 645 {
 646    const char *suffix = dsa ? "ture" : "";
 647
 648    if (texObj->HandleAllocated) {
 649       /* The ARB_bindless_texture spec says:
 650        *
 651        * "The error INVALID_OPERATION is generated by TexImage*, CopyTexImage*,
 652        * CompressedTexImage*, TexBuffer*, TexParameter*, as well as other
 653        * functions defined in terms of these, if the texture object to be
 654        * modified is referenced by one or more texture or image handles."
 655        */
 656       _mesa_error(ctx, GL_INVALID_OPERATION,
 657                   "glTex%sParameter(immutable texture)", suffix);
 658       return GL_FALSE;
 659    }
 660
 661    switch (pname) {
 662    case GL_TEXTURE_MIN_LOD:
 663       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 664          goto invalid_pname;
 665
 666       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 667          goto invalid_enum;
 668
 669       if (texObj->Sampler.MinLod == params[0])
 670          return GL_FALSE;
 671       flush(ctx);
 672       texObj->Sampler.MinLod = params[0];
 673       return GL_TRUE;
 674
 675    case GL_TEXTURE_MAX_LOD:
 676       if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
 677          goto invalid_pname;
 678
 679       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 680          goto invalid_enum;
 681
 682       if (texObj->Sampler.MaxLod == params[0])
 683          return GL_FALSE;
 684       flush(ctx);
 685       texObj->Sampler.MaxLod = params[0];
 686       return GL_TRUE;
 687
 688    case GL_TEXTURE_PRIORITY:
 689       if (ctx->API != API_OPENGL_COMPAT)
 690          goto invalid_pname;
 691
 692       flush(ctx);
 693       texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
 694       return GL_TRUE;
 695
 696    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 697       if (ctx->Extensions.EXT_texture_filter_anisotropic) {
 698          if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 699             goto invalid_enum;
 700
 701          if (texObj->Sampler.MaxAnisotropy == params[0])
 702             return GL_FALSE;
 703          if (params[0] < 1.0F) {
 704             _mesa_error(ctx, GL_INVALID_VALUE, "glTex%sParameter(param)",
 705                         suffix);
 706             return GL_FALSE;
 707          }
 708          flush(ctx);
 709          /* clamp to max, that's what NVIDIA does */
 710          texObj->Sampler.MaxAnisotropy = MIN2(params[0],
 711                                       ctx->Const.MaxTextureMaxAnisotropy);
 712          return GL_TRUE;
 713       }
 714       else {
 715          static GLuint count = 0;
 716          if (count++ < 10)
 717             goto invalid_pname;
 718       }
 719       return GL_FALSE;
 720
 721    case GL_TEXTURE_LOD_BIAS:
 722       /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias. */
 723       if (_mesa_is_gles(ctx))
 724          goto invalid_pname;
 725
 726       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 727          goto invalid_enum;
 728
 729       if (texObj->Sampler.LodBias != params[0]) {
 730          flush(ctx);
 731          texObj->Sampler.LodBias = params[0];
 732          return GL_TRUE;
 733       }
 734       break;
 735
 736    case GL_TEXTURE_BORDER_COLOR:
 737       /* Border color exists in desktop OpenGL since 1.0 for GL_CLAMP.  In
 738        * OpenGL ES 2.0+, it only exists in when GL_OES_texture_border_clamp is
 739        * enabled.  It is never available in OpenGL ES 1.x.
 740        *
 741        * FIXME: Every driver that supports GLES2 has this extension.  Elide
 742        * the check?
 743        */
 744       if (ctx->API == API_OPENGLES ||
 745           (ctx->API == API_OPENGLES2 &&
 746            !ctx->Extensions.ARB_texture_border_clamp))
 747          goto invalid_pname;
 748
 749       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target))
 750          goto invalid_enum;
 751
 752       flush(ctx);
 753       /* ARB_texture_float disables clamping */
 754       if (ctx->Extensions.ARB_texture_float) {
 755          texObj->Sampler.BorderColor.f[RCOMP] = params[0];
 756          texObj->Sampler.BorderColor.f[GCOMP] = params[1];
 757          texObj->Sampler.BorderColor.f[BCOMP] = params[2];
 758          texObj->Sampler.BorderColor.f[ACOMP] = params[3];
 759       } else {
 760          texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F);
 761          texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F);
 762          texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F);
 763          texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F);
 764       }
 765       return GL_TRUE;
 766
 767    case GL_TEXTURE_TILING_EXT:
 768       if (ctx->Extensions.EXT_memory_object) {
 769          texObj->TextureTiling = params[0];
 770          return GL_TRUE;
 771       }
 772       goto invalid_pname;
 773
 774    default:
 775       goto invalid_pname;
 776    }
 777    return GL_FALSE;
 778
 779 invalid_pname:
 780    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 781                suffix, _mesa_enum_to_string(pname));
 782    return GL_FALSE;
 783
 784 invalid_enum:
 785    _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameter(pname=%s)",
 786                suffix, _mesa_enum_to_string(pname));
 787    return GL_FALSE;
 788 }
 789
 790
 791 void
 792 _mesa_texture_parameterf(struct gl_context *ctx,
 793                          struct gl_texture_object *texObj,
 794                          GLenum pname, GLfloat param, bool dsa)
 795 {
 796    GLboolean need_update;
 797
 798    switch (pname) {
 799    case GL_TEXTURE_MIN_FILTER:
 800    case GL_TEXTURE_MAG_FILTER:
 801    case GL_TEXTURE_WRAP_S:
 802    case GL_TEXTURE_WRAP_T:
 803    case GL_TEXTURE_WRAP_R:
 804    case GL_TEXTURE_BASE_LEVEL:
 805    case GL_TEXTURE_MAX_LEVEL:
 806    case GL_GENERATE_MIPMAP_SGIS:
 807    case GL_TEXTURE_COMPARE_MODE_ARB:
 808    case GL_TEXTURE_COMPARE_FUNC_ARB:
 809    case GL_DEPTH_TEXTURE_MODE_ARB:
 810    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 811    case GL_TEXTURE_SRGB_DECODE_EXT:
 812    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 813    case GL_TEXTURE_SWIZZLE_R_EXT:
 814    case GL_TEXTURE_SWIZZLE_G_EXT:
 815    case GL_TEXTURE_SWIZZLE_B_EXT:
 816    case GL_TEXTURE_SWIZZLE_A_EXT:
 817       {
 818          GLint p[4];
 819          p[0] = (param > 0) ?
 820                 ((param > INT_MAX) ? INT_MAX : (GLint) (param + 0.5)) :
 821                 ((param < INT_MIN) ? INT_MIN : (GLint) (param - 0.5));
 822
 823          p[1] = p[2] = p[3] = 0;
 824          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 825       }
 826       break;
 827    case GL_TEXTURE_BORDER_COLOR:
 828    case GL_TEXTURE_SWIZZLE_RGBA:
 829       _mesa_error(ctx, GL_INVALID_ENUM, "glTex%sParameterf(non-scalar pname)",
 830                   dsa ? "ture" : "");
 831       return;
 832    default:
 833       {
 834          /* this will generate an error if pname is illegal */
 835          GLfloat p[4];
 836          p[0] = param;
 837          p[1] = p[2] = p[3] = 0.0F;
 838          need_update = set_tex_parameterf(ctx, texObj, pname, p, dsa);
 839       }
 840    }
 841
 842    if (ctx->Driver.TexParameter && need_update) {
 843       ctx->Driver.TexParameter(ctx, texObj, pname);
 844    }
 845 }
 846
 847
 848 void
 849 _mesa_texture_parameterfv(struct gl_context *ctx,
 850                           struct gl_texture_object *texObj,
 851                           GLenum pname, const GLfloat *params, bool dsa)
 852 {
 853    GLboolean need_update;
 854    switch (pname) {
 855    case GL_TEXTURE_MIN_FILTER:
 856    case GL_TEXTURE_MAG_FILTER:
 857    case GL_TEXTURE_WRAP_S:
 858    case GL_TEXTURE_WRAP_T:
 859    case GL_TEXTURE_WRAP_R:
 860    case GL_TEXTURE_BASE_LEVEL:
 861    case GL_TEXTURE_MAX_LEVEL:
 862    case GL_GENERATE_MIPMAP_SGIS:
 863    case GL_TEXTURE_COMPARE_MODE_ARB:
 864    case GL_TEXTURE_COMPARE_FUNC_ARB:
 865    case GL_DEPTH_TEXTURE_MODE_ARB:
 866    case GL_DEPTH_STENCIL_TEXTURE_MODE:
 867    case GL_TEXTURE_SRGB_DECODE_EXT:
 868    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 869       {
 870          /* convert float param to int */
 871          GLint p[4];
 872          p[0] = (GLint) params[0];
 873          p[1] = p[2] = p[3] = 0;
 874          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 875       }
 876       break;
 877    case GL_TEXTURE_CROP_RECT_OES:
 878       {
 879          /* convert float params to int */
 880          GLint iparams[4];
 881          iparams[0] = (GLint) params[0];
 882          iparams[1] = (GLint) params[1];
 883          iparams[2] = (GLint) params[2];
 884          iparams[3] = (GLint) params[3];
 885          need_update = set_tex_parameteri(ctx, texObj, pname, iparams, dsa);
 886       }
 887       break;
 888    case GL_TEXTURE_SWIZZLE_R_EXT:
 889    case GL_TEXTURE_SWIZZLE_G_EXT:
 890    case GL_TEXTURE_SWIZZLE_B_EXT:
 891    case GL_TEXTURE_SWIZZLE_A_EXT:
 892    case GL_TEXTURE_SWIZZLE_RGBA_EXT:
 893       {
 894          GLint p[4] = {0, 0, 0, 0};
 895          p[0] = (GLint) params[0];
 896          if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT) {
 897             p[1] = (GLint) params[1];
 898             p[2] = (GLint) params[2];
 899             p[3] = (GLint) params[3];
 900          }
 901          need_update = set_tex_parameteri(ctx, texObj, pname, p, dsa);
 902       }
 903       break;
 904    default:
 905       /* this will generate an error if pname is illegal */
 906       need_update = set_tex_parameterf(ctx, texObj, pname, params, dsa);
 907    }
 908
 909    if (ctx->Driver.TexParameter && need_update) {
 910       ctx->Driver.TexParameter(ctx, texObj, pname);
 911    }
 912 }
 913
 914
 915 void
 916 _mesa_texture_parameteri(struct gl_context *ctx,
 917                          struct gl_texture_object *texObj,
 918                          GLenum pname, GLint param, bool dsa)
 919 {
 920    GLboolean need_update;
 921    switch (pname) {
 922    case GL_TEXTURE_MIN_LOD:
 923    case GL_TEXTURE_MAX_LOD:
 924    case GL_TEXTURE_PRIORITY:
 925    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 926    case GL_TEXTURE_LOD_BIAS:
 927    case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
 928       {
 929          GLfloat fparam[4];
 930          fparam[0] = (GLfloat) param;
 931          fparam[1] = fparam[2] = fparam[3] = 0.0F;
 932          /* convert int param to float */
 933          need_update = set_tex_parameterf(ctx, texObj, pname, fparam, dsa);
 934       }
 935       break;
 936    case GL_TEXTURE_BORDER_COLOR:
 937    case GL_TEXTURE_SWIZZLE_RGBA:
 938       {
 939          _mesa_error(ctx, GL_INVALID_ENUM,
 940                      "glTex%sParameteri(non-scalar pname)",
 941                      dsa ? "ture" : "");
 942          return;
 943       }
 944    default:
 945       /* this will generate an error if pname is illegal */
 946       {
 947          GLint iparam[4];
 948          iparam[0] = param;
 949          iparam[1] = iparam[2] = iparam[3] = 0;
 950          need_update = set_tex_parameteri(ctx, texObj, pname, iparam, dsa);
 951       }
 952    }
 953
 954    if (ctx->Driver.TexParameter && need_update) {
 955       ctx->Driver.TexParameter(ctx, texObj, pname);
 956    }
 957 }
 958
 959
 960 void
 961 _mesa_texture_parameteriv(struct gl_context *ctx,
 962                           struct gl_texture_object *texObj,
 963                           GLenum pname, const GLint *params, bool dsa)
 964 {
 965    GLboolean need_update;
 966
 967    switch (pname) {
 968    case GL_TEXTURE_BORDER_COLOR:
 969       {
 970          /* convert int params to float */
 971          GLfloat fparams[4];
 972          fparams[0] = INT_TO_FLOAT(params[0]);
 973          fparams[1] = INT_TO_FLOAT(params[1]);
 974          fparams[2] = INT_TO_FLOAT(params[2]);
 975          fparams[3] = INT_TO_FLOAT(params[3]);
 976          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 977       }
 978       break;
 979    case GL_TEXTURE_MIN_LOD:
 980    case GL_TEXTURE_MAX_LOD:
 981    case GL_TEXTURE_PRIORITY:
 982    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 983    case GL_TEXTURE_LOD_BIAS:
 984    case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
 985       {
 986          /* convert int param to float */
 987          GLfloat fparams[4];
 988          fparams[0] = (GLfloat) params[0];
 989          fparams[1] = fparams[2] = fparams[3] = 0.0F;
 990          need_update = set_tex_parameterf(ctx, texObj, pname, fparams, dsa);
 991       }
 992       break;
 993    default:
 994       /* this will generate an error if pname is illegal */
 995       need_update = set_tex_parameteri(ctx, texObj, pname, params, dsa);
 996    }
 997
 998    if (ctx->Driver.TexParameter && need_update) {
 999       ctx->Driver.TexParameter(ctx, texObj, pname);
1000    }
1001 }
1002
1003 void
1004 _mesa_texture_parameterIiv(struct gl_context *ctx,
1005                            struct gl_texture_object *texObj,
1006                            GLenum pname, const GLint *params, bool dsa)
1007 {
1008    switch (pname) {
1009    case GL_TEXTURE_BORDER_COLOR:
1010       if (texObj->HandleAllocated) {
1011          _mesa_error(ctx, GL_INVALID_OPERATION,
1012                      "glTextureParameterIiv(immutable texture)");
1013          return;
1014       }
1015
1016       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
1017          _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIiv(texture)");
1018          return;
1019       }
1020       FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
1021       /* set the integer-valued border color */
1022       COPY_4V(texObj->Sampler.BorderColor.i, params);
1023       break;
1024    default:
1025       _mesa_texture_parameteriv(ctx, texObj, pname, params, dsa);
1026       break;
1027    }
1028    /* XXX no driver hook for TexParameterIiv() yet */
1029 }
1030
1031 void
1032 _mesa_texture_parameterIuiv(struct gl_context *ctx,
1033                             struct gl_texture_object *texObj,
1034                             GLenum pname, const GLuint *params, bool dsa)
1035 {
1036    switch (pname) {
1037    case GL_TEXTURE_BORDER_COLOR:
1038       if (texObj->HandleAllocated) {
1039          _mesa_error(ctx, GL_INVALID_OPERATION,
1040                      "glTextureParameterIuiv(immutable texture)");
1041          return;
1042       }
1043
1044       if (!_mesa_target_allows_setting_sampler_parameters(texObj->Target)) {
1045          _mesa_error(ctx, GL_INVALID_ENUM, "glTextureParameterIuiv(texture)");
1046          return;
1047       }
1048       FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
1049       /* set the unsigned integer-valued border color */
1050       COPY_4V(texObj->Sampler.BorderColor.ui, params);
1051       break;
1052    default:
1053       _mesa_texture_parameteriv(ctx, texObj, pname, (const GLint *) params,
1054                                 dsa);
1055       break;
1056    }
1057    /* XXX no driver hook for TexParameterIuiv() yet */
1058 }
1059
1060 void GLAPIENTRY
1061 _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
1062 {
1063    struct gl_texture_object *texObj;
1064    GET_CURRENT_CONTEXT(ctx);
1065
1066    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1067                                                    ctx->Texture.CurrentUnit,
1068                                                    false,
1069                                                    "glTexParameterf");
1070    if (!texObj)
1071       return;
1072
1073    _mesa_texture_parameterf(ctx, texObj, pname, param, false);
1074 }
1075
1076 void GLAPIENTRY
1077 _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
1078 {
1079    struct gl_texture_object *texObj;
1080    GET_CURRENT_CONTEXT(ctx);
1081
1082    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1083                                                    ctx->Texture.CurrentUnit,
1084                                                    false,
1085                                                    "glTexParameterfv");
1086    if (!texObj)
1087       return;
1088
1089    _mesa_texture_parameterfv(ctx, texObj, pname, params, false);
1090 }
1091
1092 void GLAPIENTRY
1093 _mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
1094 {
1095    struct gl_texture_object *texObj;
1096    GET_CURRENT_CONTEXT(ctx);
1097
1098    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1099                                                    ctx->Texture.CurrentUnit,
1100                                                    false,
1101                                                    "glTexParameteri");
1102    if (!texObj)
1103       return;
1104
1105    _mesa_texture_parameteri(ctx, texObj, pname, param, false);
1106 }
1107
1108 void GLAPIENTRY
1109 _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
1110 {
1111    struct gl_texture_object *texObj;
1112    GET_CURRENT_CONTEXT(ctx);
1113
1114    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1115                                                    ctx->Texture.CurrentUnit,
1116                                                    false,
1117                                                    "glTexParameteriv");
1118    if (!texObj)
1119       return;
1120
1121    _mesa_texture_parameteriv(ctx, texObj, pname, params, false);
1122 }
1123
1124 /**
1125  * Set tex parameter to integer value(s).  Primarily intended to set
1126  * integer-valued texture border color (for integer-valued textures).
1127  * New in GL 3.0.
1128  */
1129 void GLAPIENTRY
1130 _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
1131 {
1132    struct gl_texture_object *texObj;
1133    GET_CURRENT_CONTEXT(ctx);
1134
1135    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1136                                                    ctx->Texture.CurrentUnit,
1137                                                    false,
1138                                                    "glTexParameterIiv");
1139    if (!texObj)
1140       return;
1141
1142    _mesa_texture_parameterIiv(ctx, texObj, pname, params, false);
1143 }
1144
1145 /**
1146  * Set tex parameter to unsigned integer value(s).  Primarily intended to set
1147  * uint-valued texture border color (for integer-valued textures).
1148  * New in GL 3.0
1149  */
1150 void GLAPIENTRY
1151 _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
1152 {
1153    struct gl_texture_object *texObj;
1154    GET_CURRENT_CONTEXT(ctx);
1155
1156    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1157                                                    ctx->Texture.CurrentUnit,
1158                                                    false,
1159                                                    "glTexParameterIuiv");
1160    if (!texObj)
1161       return;
1162
1163    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, false);
1164 }
1165
1166 void GLAPIENTRY
1167 _mesa_TextureParameterfvEXT(GLuint texture, GLenum target, GLenum pname, const GLfloat *params)
1168 {
1169    struct gl_texture_object *texObj;
1170    GET_CURRENT_CONTEXT(ctx);
1171
1172    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1173                                            "glTextureParameterfvEXT");
1174    if (!texObj)
1175       return;
1176
1177    if (!is_texparameteri_target_valid(texObj->Target)) {
1178       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfvEXT");
1179       return;
1180    }
1181
1182    _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
1183 }
1184
1185 void GLAPIENTRY
1186 _mesa_TextureParameterfv(GLuint texture, GLenum pname, const GLfloat *params)
1187 {
1188    struct gl_texture_object *texObj;
1189    GET_CURRENT_CONTEXT(ctx);
1190
1191    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterfv");
1192    if (!texObj)
1193       return;
1194
1195    _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
1196 }
1197
1198 void GLAPIENTRY
1199 _mesa_MultiTexParameterfvEXT(GLenum texunit, GLenum target, GLenum pname, const GLfloat *params)
1200 {
1201    struct gl_texture_object *texObj;
1202    GET_CURRENT_CONTEXT(ctx);
1203
1204    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1205                                                    texunit - GL_TEXTURE0,
1206                                                    false,
1207                                                    "glMultiTexParameterfvEXT");
1208    if (!texObj)
1209       return;
1210
1211    if (!is_texparameteri_target_valid(texObj->Target)) {
1212       _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameterifvEXT(target)");
1213       return;
1214    }
1215
1216    _mesa_texture_parameterfv(ctx, texObj, pname, params, true);
1217 }
1218
1219 void GLAPIENTRY
1220 _mesa_TextureParameterfEXT(GLuint texture, GLenum target, GLenum pname, GLfloat param)
1221 {
1222    struct gl_texture_object *texObj;
1223    GET_CURRENT_CONTEXT(ctx);
1224
1225    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1226                                            "glTextureParameterfEXT");
1227    if (!texObj)
1228       return;
1229
1230    if (!is_texparameteri_target_valid(texObj->Target)) {
1231       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfEXT");
1232       return;
1233    }
1234
1235    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1236 }
1237
1238 void GLAPIENTRY
1239 _mesa_MultiTexParameterfEXT(GLenum texunit, GLenum target, GLenum pname,
1240                             GLfloat param)
1241 {
1242    struct gl_texture_object *texObj;
1243    GET_CURRENT_CONTEXT(ctx);
1244
1245    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1246                                                    texunit - GL_TEXTURE0,
1247                                                    false,
1248                                                    "glMultiTexParameterfEXT");
1249    if (!texObj)
1250       return;
1251
1252    if (!is_texparameteri_target_valid(texObj->Target)) {
1253       _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameterfEXT");
1254       return;
1255    }
1256
1257    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1258 }
1259
1260 void GLAPIENTRY
1261 _mesa_TextureParameterf(GLuint texture, GLenum pname, GLfloat param)
1262 {
1263    struct gl_texture_object *texObj;
1264    GET_CURRENT_CONTEXT(ctx);
1265
1266    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterf");
1267    if (!texObj)
1268       return;
1269
1270    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1271 }
1272
1273 void GLAPIENTRY
1274 _mesa_TextureParameteriEXT(GLuint texture, GLenum target, GLenum pname, GLint param)
1275 {
1276    struct gl_texture_object *texObj;
1277    GET_CURRENT_CONTEXT(ctx);
1278
1279    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1280                                            "glTextureParameteriEXT");
1281    if (!texObj)
1282       return;
1283
1284    if (!is_texparameteri_target_valid(texObj->Target)) {
1285       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteriEXT(target)");
1286       return;
1287    }
1288
1289    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1290 }
1291
1292 void GLAPIENTRY
1293 _mesa_MultiTexParameteriEXT(GLenum texunit, GLenum target, GLenum pname,
1294                             GLint param)
1295 {
1296    struct gl_texture_object *texObj;
1297    GET_CURRENT_CONTEXT(ctx);
1298
1299    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1300                                                    texunit - GL_TEXTURE0,
1301                                                    false,
1302                                                    "glMultiTexParameteriEXT");
1303    if (!texObj)
1304       return;
1305
1306    if (!is_texparameteri_target_valid(texObj->Target)) {
1307       _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameteriEXT(target)");
1308       return;
1309    }
1310
1311    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1312 }
1313
1314 void GLAPIENTRY
1315 _mesa_TextureParameteri(GLuint texture, GLenum pname, GLint param)
1316 {
1317    struct gl_texture_object *texObj;
1318    GET_CURRENT_CONTEXT(ctx);
1319
1320    texObj = get_texobj_by_name(ctx, texture, "glTextureParameteri");
1321    if (!texObj)
1322       return;
1323
1324    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1325 }
1326
1327 void GLAPIENTRY
1328 _mesa_TextureParameterivEXT(GLuint texture, GLenum target, GLenum pname,
1329                          const GLint *params)
1330 {
1331    struct gl_texture_object *texObj;
1332    GET_CURRENT_CONTEXT(ctx);
1333
1334    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1335                                            "glTextureParameterivEXT");
1336    if (!texObj)
1337       return;
1338
1339    if (!is_texparameteri_target_valid(texObj->Target)) {
1340       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterivEXT(target)");
1341       return;
1342    }
1343
1344    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1345 }
1346
1347 void GLAPIENTRY
1348 _mesa_MultiTexParameterivEXT(GLenum texunit, GLenum target, GLenum pname,
1349                              const GLint *params)
1350 {
1351    struct gl_texture_object *texObj;
1352    GET_CURRENT_CONTEXT(ctx);
1353
1354    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1355                                                    texunit - GL_TEXTURE0,
1356                                                    false,
1357                                                    "glMultiTexParameterivEXT");
1358    if (!texObj)
1359       return;
1360
1361    if (!is_texparameteri_target_valid(texObj->Target)) {
1362       _mesa_error(ctx, GL_INVALID_OPERATION, "glMultiTexParameterivEXT(target)");
1363       return;
1364    }
1365
1366    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1367 }
1368
1369 void GLAPIENTRY
1370 _mesa_TextureParameteriv(GLuint texture, GLenum pname,
1371                          const GLint *params)
1372 {
1373    struct gl_texture_object *texObj;
1374    GET_CURRENT_CONTEXT(ctx);
1375
1376    texObj = get_texobj_by_name(ctx, texture, "glTextureParameteriv");
1377    if (!texObj)
1378       return;
1379
1380    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1381 }
1382
1383
1384 void GLAPIENTRY
1385 _mesa_TextureParameterIiv(GLuint texture, GLenum pname, const GLint *params)
1386 {
1387    struct gl_texture_object *texObj;
1388    GET_CURRENT_CONTEXT(ctx);
1389
1390    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIiv");
1391    if (!texObj)
1392       return;
1393
1394    _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
1395 }
1396
1397 void GLAPIENTRY
1398 _mesa_TextureParameterIivEXT(GLuint texture, GLenum target, GLenum pname,
1399                              const GLint *params)
1400 {
1401    struct gl_texture_object *texObj;
1402    GET_CURRENT_CONTEXT(ctx);
1403
1404    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1405                                            "glTextureParameterIivEXT");
1406    if (!texObj)
1407       return;
1408
1409    _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
1410 }
1411
1412 void GLAPIENTRY
1413 _mesa_MultiTexParameterIivEXT(GLenum texunit, GLenum target, GLenum pname,
1414                               const GLint *params)
1415 {
1416    struct gl_texture_object *texObj;
1417    GET_CURRENT_CONTEXT(ctx);
1418
1419    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1420                                                    texunit - GL_TEXTURE0,
1421                                                    true,
1422                                                    "glMultiTexParameterIivEXT");
1423    if (!texObj)
1424       return;
1425
1426    _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
1427 }
1428
1429 void GLAPIENTRY
1430 _mesa_TextureParameterIuiv(GLuint texture, GLenum pname, const GLuint *params)
1431 {
1432    struct gl_texture_object *texObj;
1433    GET_CURRENT_CONTEXT(ctx);
1434
1435    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIuiv");
1436    if (!texObj)
1437       return;
1438
1439    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
1440 }
1441
1442 void GLAPIENTRY
1443 _mesa_TextureParameterIuivEXT(GLuint texture, GLenum target, GLenum pname,
1444                               const GLuint *params)
1445 {
1446    struct gl_texture_object *texObj;
1447    GET_CURRENT_CONTEXT(ctx);
1448
1449    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1450                                            "glTextureParameterIuivEXT");
1451    if (!texObj)
1452       return;
1453
1454    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
1455 }
1456
1457 void GLAPIENTRY
1458 _mesa_MultiTexParameterIuivEXT(GLenum texunit, GLenum target, GLenum pname,
1459                                const GLuint *params)
1460 {
1461    struct gl_texture_object *texObj;
1462    GET_CURRENT_CONTEXT(ctx);
1463
1464    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
1465                                                    texunit - GL_TEXTURE0,
1466                                                    true,
1467                                                    "glMultiTexParameterIuivEXT");
1468    if (!texObj)
1469       return;
1470
1471    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
1472 }
1473
1474 GLboolean
1475 _mesa_legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target,
1476                                            bool dsa)
1477 {
1478    /* Common targets for desktop GL and GLES 3.1. */
1479    switch (target) {
1480    case GL_TEXTURE_2D:
1481    case GL_TEXTURE_3D:
1482       return GL_TRUE;
1483    case GL_TEXTURE_2D_ARRAY_EXT:
1484       return ctx->Extensions.EXT_texture_array;
1485    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1486    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1487    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1488    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1489    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1490    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1491       return ctx->Extensions.ARB_texture_cube_map;
1492    case GL_TEXTURE_2D_MULTISAMPLE:
1493    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1494       return ctx->Extensions.ARB_texture_multisample;
1495    case GL_TEXTURE_BUFFER:
1496       /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts,
1497        * but not in earlier versions that expose ARB_texture_buffer_object.
1498        *
1499        * From the ARB_texture_buffer_object spec:
1500        * "(7) Do buffer textures support texture parameters (TexParameter) or
1501        *      queries (GetTexParameter, GetTexLevelParameter, GetTexImage)?
1502        *
1503        *    RESOLVED:  No. [...] Note that the spec edits above don't add
1504        *    explicit error language for any of these cases.  That is because
1505        *    each of the functions enumerate the set of valid <target>
1506        *    parameters.  Not editing the spec to allow TEXTURE_BUFFER_ARB in
1507        *    these cases means that target is not legal, and an INVALID_ENUM
1508        *    error should be generated."
1509        *
1510        * From the OpenGL 3.1 spec:
1511        * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
1512        */
1513       return (_mesa_is_desktop_gl(ctx) && ctx->Version >= 31) ||
1514              _mesa_has_OES_texture_buffer(ctx);
1515    case GL_TEXTURE_CUBE_MAP_ARRAY:
1516       return _mesa_has_texture_cube_map_array(ctx);
1517    }
1518
1519    if (!_mesa_is_desktop_gl(ctx))
1520       return GL_FALSE;
1521
1522    /* Rest of the desktop GL targets. */
1523    switch (target) {
1524    case GL_TEXTURE_1D:
1525    case GL_PROXY_TEXTURE_1D:
1526    case GL_PROXY_TEXTURE_2D:
1527    case GL_PROXY_TEXTURE_3D:
1528       return GL_TRUE;
1529    case GL_PROXY_TEXTURE_CUBE_MAP:
1530       return ctx->Extensions.ARB_texture_cube_map;
1531    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1532       return ctx->Extensions.ARB_texture_cube_map_array;
1533    case GL_TEXTURE_RECTANGLE_NV:
1534    case GL_PROXY_TEXTURE_RECTANGLE_NV:
1535       return ctx->Extensions.NV_texture_rectangle;
1536    case GL_TEXTURE_1D_ARRAY_EXT:
1537    case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1538    case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1539       return ctx->Extensions.EXT_texture_array;
1540    case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1541    case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1542       return ctx->Extensions.ARB_texture_multisample;
1543
1544    /*  This is a valid target for dsa, but the OpenGL 4.5 core spec
1545     *  (30.10.2014) Section 8.11 Texture Queries says:
1546     *       "For GetTextureLevelParameter* only, texture may also be a cube
1547     *       map texture object.  In this case the query is always performed
1548     *       for face zero (the TEXTURE_CUBE_MAP_POSITIVE_X face), since there
1549     *       is no way to specify another face."
1550     */
1551    case GL_TEXTURE_CUBE_MAP:
1552       return dsa;
1553    default:
1554       return GL_FALSE;
1555    }
1556 }
1557
1558
1559 static void
1560 get_tex_level_parameter_image(struct gl_context *ctx,
1561                               const struct gl_texture_object *texObj,
1562                               GLenum target, GLint level,
1563                               GLenum pname, GLint *params,
1564                               bool dsa)
1565 {
1566    const struct gl_texture_image *img = NULL;
1567    struct gl_texture_image dummy_image;
1568    mesa_format texFormat;
1569    const char *suffix = dsa ? "ture" : "";
1570
1571    img = _mesa_select_tex_image(texObj, target, level);
1572    if (!img || img->TexFormat == MESA_FORMAT_NONE) {
1573       /* In case of undefined texture image return the default values.
1574        *
1575        * From OpenGL 4.0 spec, page 398:
1576        *    "The initial internal format of a texel array is RGBA
1577        *     instead of 1. TEXTURE_COMPONENTS is deprecated; always
1578        *     use TEXTURE_INTERNAL_FORMAT."
1579        */
1580       memset(&dummy_image, 0, sizeof(dummy_image));
1581       dummy_image.TexFormat = MESA_FORMAT_NONE;
1582       dummy_image.InternalFormat = GL_RGBA;
1583       dummy_image._BaseFormat = GL_NONE;
1584       dummy_image.FixedSampleLocations = GL_TRUE;
1585
1586       img = &dummy_image;
1587    }
1588
1589    texFormat = img->TexFormat;
1590
1591    switch (pname) {
1592       case GL_TEXTURE_WIDTH:
1593          *params = img->Width;
1594          break;
1595       case GL_TEXTURE_HEIGHT:
1596          *params = img->Height;
1597          break;
1598       case GL_TEXTURE_DEPTH:
1599          *params = img->Depth;
1600          break;
1601       case GL_TEXTURE_INTERNAL_FORMAT:
1602          if (_mesa_is_format_compressed(texFormat)) {
1603             /* need to return the actual compressed format */
1604             *params = _mesa_compressed_format_to_glenum(ctx, texFormat);
1605          }
1606          else {
1607             /* If the true internal format is not compressed but the user
1608              * requested a generic compressed format, we have to return the
1609              * generic base format that matches.
1610              *
1611              * From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec:
1612              *
1613              *     "If no specific compressed format is available,
1614              *     internalformat is instead replaced by the corresponding base
1615              *     internal format."
1616              *
1617              * Otherwise just return the user's requested internal format
1618              */
1619             const GLenum f =
1620                _mesa_gl_compressed_format_base_format(img->InternalFormat);
1621
1622             *params = (f != 0) ? f : img->InternalFormat;
1623          }
1624          break;
1625       case GL_TEXTURE_BORDER:
1626          if (ctx->API != API_OPENGL_COMPAT)
1627             goto invalid_pname;
1628          *params = img->Border;
1629          break;
1630       case GL_TEXTURE_RED_SIZE:
1631       case GL_TEXTURE_GREEN_SIZE:
1632       case GL_TEXTURE_BLUE_SIZE:
1633       case GL_TEXTURE_ALPHA_SIZE:
1634          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1635             *params = _mesa_get_format_bits(texFormat, pname);
1636          else
1637             *params = 0;
1638          break;
1639       case GL_TEXTURE_INTENSITY_SIZE:
1640       case GL_TEXTURE_LUMINANCE_SIZE:
1641          if (ctx->API != API_OPENGL_COMPAT)
1642             goto invalid_pname;
1643          if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) {
1644             *params = _mesa_get_format_bits(texFormat, pname);
1645             if (*params == 0) {
1646                /* intensity or luminance is probably stored as RGB[A] */
1647                *params = MIN2(_mesa_get_format_bits(texFormat,
1648                                                     GL_TEXTURE_RED_SIZE),
1649                               _mesa_get_format_bits(texFormat,
1650                                                     GL_TEXTURE_GREEN_SIZE));
1651             }
1652             if (*params == 0 && pname == GL_TEXTURE_INTENSITY_SIZE) {
1653                /* Gallium may store intensity as LA */
1654                *params = _mesa_get_format_bits(texFormat,
1655                                                GL_TEXTURE_ALPHA_SIZE);
1656             }
1657          }
1658          else {
1659             *params = 0;
1660          }
1661          break;
1662       case GL_TEXTURE_DEPTH_SIZE_ARB:
1663          if (!ctx->Extensions.ARB_depth_texture)
1664             goto invalid_pname;
1665          *params = _mesa_get_format_bits(texFormat, pname);
1666          break;
1667       case GL_TEXTURE_STENCIL_SIZE:
1668          *params = _mesa_get_format_bits(texFormat, pname);
1669          break;
1670       case GL_TEXTURE_SHARED_SIZE:
1671          if (ctx->Version < 30 &&
1672              !ctx->Extensions.EXT_texture_shared_exponent)
1673             goto invalid_pname;
1674          *params = texFormat == MESA_FORMAT_R9G9B9E5_FLOAT ? 5 : 0;
1675          break;
1676
1677       /* GL_ARB_texture_compression */
1678       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1679          if (_mesa_is_format_compressed(texFormat) &&
1680              !_mesa_is_proxy_texture(target)) {
1681             *params = _mesa_format_image_size(texFormat, img->Width,
1682                                               img->Height, img->Depth);
1683          } else {
1684             _mesa_error(ctx, GL_INVALID_OPERATION,
1685                         "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1686                         _mesa_enum_to_string(pname));
1687          }
1688          break;
1689       case GL_TEXTURE_COMPRESSED:
1690          *params = (GLint) _mesa_is_format_compressed(texFormat);
1691          break;
1692
1693       /* GL_ARB_texture_float */
1694       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1695       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1696          if (ctx->API != API_OPENGL_COMPAT)
1697             goto invalid_pname;
1698          /* FALLTHROUGH */
1699       case GL_TEXTURE_RED_TYPE_ARB:
1700       case GL_TEXTURE_GREEN_TYPE_ARB:
1701       case GL_TEXTURE_BLUE_TYPE_ARB:
1702       case GL_TEXTURE_ALPHA_TYPE_ARB:
1703       case GL_TEXTURE_DEPTH_TYPE_ARB:
1704          if (!ctx->Extensions.ARB_texture_float)
1705             goto invalid_pname;
1706          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1707             *params = _mesa_get_format_datatype(texFormat);
1708          else
1709             *params = GL_NONE;
1710          break;
1711
1712       /* GL_ARB_texture_multisample */
1713       case GL_TEXTURE_SAMPLES:
1714          if (!ctx->Extensions.ARB_texture_multisample)
1715             goto invalid_pname;
1716          *params = img->NumSamples;
1717          break;
1718
1719       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1720          if (!ctx->Extensions.ARB_texture_multisample)
1721             goto invalid_pname;
1722          *params = img->FixedSampleLocations;
1723          break;
1724
1725       /* There is never a buffer data store here, but these pnames still have
1726        * to work.
1727        */
1728
1729       /* GL_ARB_texture_buffer_object */
1730       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1731          if (!ctx->Extensions.ARB_texture_buffer_object)
1732             goto invalid_pname;
1733          *params = 0;
1734          break;
1735
1736       /* GL_ARB_texture_buffer_range */
1737       case GL_TEXTURE_BUFFER_OFFSET:
1738          if (!ctx->Extensions.ARB_texture_buffer_range)
1739             goto invalid_pname;
1740          *params = 0;
1741          break;
1742       case GL_TEXTURE_BUFFER_SIZE:
1743          if (!ctx->Extensions.ARB_texture_buffer_range)
1744             goto invalid_pname;
1745          *params = 0;
1746          break;
1747
1748       default:
1749          goto invalid_pname;
1750    }
1751
1752    /* no error if we get here */
1753    return;
1754
1755 invalid_pname:
1756    _mesa_error(ctx, GL_INVALID_ENUM,
1757                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1758                _mesa_enum_to_string(pname));
1759 }
1760
1761
1762 /**
1763  * Handle a glGetTexLevelParamteriv() call for a texture buffer.
1764  */
1765 static void
1766 get_tex_level_parameter_buffer(struct gl_context *ctx,
1767                                const struct gl_texture_object *texObj,
1768                                GLenum pname, GLint *params, bool dsa)
1769 {
1770    const struct gl_buffer_object *bo = texObj->BufferObject;
1771    mesa_format texFormat = texObj->_BufferObjectFormat;
1772    int bytes = MAX2(1, _mesa_get_format_bytes(texFormat));
1773    GLenum internalFormat = texObj->BufferObjectFormat;
1774    GLenum baseFormat = _mesa_get_format_base_format(texFormat);
1775    const char *suffix = dsa ? "ture" : "";
1776
1777    assert(texObj->Target == GL_TEXTURE_BUFFER);
1778
1779    if (!bo) {
1780       /* undefined texture buffer object */
1781       switch (pname) {
1782       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1783          *params = GL_TRUE;
1784          break;
1785       case GL_TEXTURE_INTERNAL_FORMAT:
1786          *params = internalFormat;
1787          break;
1788       default:
1789          *params = 0;
1790          break;
1791       }
1792       return;
1793    }
1794
1795    switch (pname) {
1796       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1797          *params = bo->Name;
1798          break;
1799       case GL_TEXTURE_WIDTH:
1800          *params = ((texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize)
1801             / bytes;
1802          break;
1803       case GL_TEXTURE_HEIGHT:
1804       case GL_TEXTURE_DEPTH:
1805          *params = 1;
1806          break;
1807       case GL_TEXTURE_BORDER:
1808       case GL_TEXTURE_SHARED_SIZE:
1809       case GL_TEXTURE_COMPRESSED:
1810          *params = 0;
1811          break;
1812       case GL_TEXTURE_INTERNAL_FORMAT:
1813          *params = internalFormat;
1814          break;
1815       case GL_TEXTURE_RED_SIZE:
1816       case GL_TEXTURE_GREEN_SIZE:
1817       case GL_TEXTURE_BLUE_SIZE:
1818       case GL_TEXTURE_ALPHA_SIZE:
1819          if (_mesa_base_format_has_channel(baseFormat, pname))
1820             *params = _mesa_get_format_bits(texFormat, pname);
1821          else
1822             *params = 0;
1823          break;
1824       case GL_TEXTURE_INTENSITY_SIZE:
1825       case GL_TEXTURE_LUMINANCE_SIZE:
1826          if (_mesa_base_format_has_channel(baseFormat, pname)) {
1827             *params = _mesa_get_format_bits(texFormat, pname);
1828             if (*params == 0) {
1829                /* intensity or luminance is probably stored as RGB[A] */
1830                *params = MIN2(_mesa_get_format_bits(texFormat,
1831                                                     GL_TEXTURE_RED_SIZE),
1832                               _mesa_get_format_bits(texFormat,
1833                                                     GL_TEXTURE_GREEN_SIZE));
1834             }
1835          } else {
1836             *params = 0;
1837          }
1838          break;
1839       case GL_TEXTURE_DEPTH_SIZE_ARB:
1840       case GL_TEXTURE_STENCIL_SIZE_EXT:
1841          *params = _mesa_get_format_bits(texFormat, pname);
1842          break;
1843
1844       /* GL_ARB_texture_buffer_range */
1845       case GL_TEXTURE_BUFFER_OFFSET:
1846          if (!ctx->Extensions.ARB_texture_buffer_range)
1847             goto invalid_pname;
1848          *params = texObj->BufferOffset;
1849          break;
1850       case GL_TEXTURE_BUFFER_SIZE:
1851          if (!ctx->Extensions.ARB_texture_buffer_range)
1852             goto invalid_pname;
1853          *params = (texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize;
1854          break;
1855
1856       /* GL_ARB_texture_multisample */
1857       case GL_TEXTURE_SAMPLES:
1858          if (!ctx->Extensions.ARB_texture_multisample)
1859             goto invalid_pname;
1860          *params = 0;
1861          break;
1862
1863       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1864          if (!ctx->Extensions.ARB_texture_multisample)
1865             goto invalid_pname;
1866          *params = GL_TRUE;
1867          break;
1868
1869       /* GL_ARB_texture_compression */
1870       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1871          /* Always illegal for GL_TEXTURE_BUFFER */
1872          _mesa_error(ctx, GL_INVALID_OPERATION,
1873                      "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1874                      _mesa_enum_to_string(pname));
1875          break;
1876
1877       /* GL_ARB_texture_float */
1878       case GL_TEXTURE_RED_TYPE_ARB:
1879       case GL_TEXTURE_GREEN_TYPE_ARB:
1880       case GL_TEXTURE_BLUE_TYPE_ARB:
1881       case GL_TEXTURE_ALPHA_TYPE_ARB:
1882       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1883       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1884       case GL_TEXTURE_DEPTH_TYPE_ARB:
1885          if (!ctx->Extensions.ARB_texture_float)
1886             goto invalid_pname;
1887          if (_mesa_base_format_has_channel(baseFormat, pname))
1888             *params = _mesa_get_format_datatype(texFormat);
1889          else
1890             *params = GL_NONE;
1891          break;
1892
1893       default:
1894          goto invalid_pname;
1895    }
1896
1897    /* no error if we get here */
1898    return;
1899
1900 invalid_pname:
1901    _mesa_error(ctx, GL_INVALID_ENUM,
1902                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1903                _mesa_enum_to_string(pname));
1904 }
1905
1906 static bool
1907 valid_tex_level_parameteriv_target(struct gl_context *ctx, GLenum target,
1908                                    bool dsa)
1909 {
1910    const char *suffix = dsa ? "ture" : "";
1911    if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, dsa)) {
1912       _mesa_error(ctx, GL_INVALID_ENUM,
1913                   "glGetTex%sLevelParameter[if]v(target=%s)", suffix,
1914                   _mesa_enum_to_string(target));
1915       return false;
1916    }
1917    return true;
1918 }
1919
1920 /**
1921  * This isn't exposed to the rest of the driver because it is a part of the
1922  * OpenGL API that is rarely used.
1923  */
1924 static void
1925 get_tex_level_parameteriv(struct gl_context *ctx,
1926                           struct gl_texture_object *texObj,
1927                           GLenum target, GLint level,
1928                           GLenum pname, GLint *params,
1929                           bool dsa)
1930 {
1931    GLint maxLevels;
1932    const char *suffix = dsa ? "ture" : "";
1933
1934    /* Check for errors */
1935    if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
1936       _mesa_error(ctx, GL_INVALID_OPERATION,
1937                   "glGetTex%sLevelParameter[if]v("
1938                   "current unit >= max combined texture units)", suffix);
1939       return;
1940    }
1941
1942    maxLevels = _mesa_max_texture_levels(ctx, target);
1943    assert(maxLevels != 0);
1944
1945    if (level < 0 || level >= maxLevels) {
1946       _mesa_error(ctx, GL_INVALID_VALUE,
1947                   "glGetTex%sLevelParameter[if]v(level out of range)", suffix);
1948       return;
1949    }
1950
1951    /* Get the level parameter */
1952    if (target == GL_TEXTURE_BUFFER) {
1953       get_tex_level_parameter_buffer(ctx, texObj, pname, params, dsa);
1954    }
1955    else {
1956       get_tex_level_parameter_image(ctx, texObj, target,
1957                                     level, pname, params, dsa);
1958    }
1959 }
1960
1961 void GLAPIENTRY
1962 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
1963                               GLenum pname, GLfloat *params )
1964 {
1965    struct gl_texture_object *texObj;
1966    GLint iparam;
1967    GET_CURRENT_CONTEXT(ctx);
1968
1969    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1970       return;
1971
1972    texObj = _mesa_get_current_tex_object(ctx, target);
1973    if (!texObj)
1974       return;
1975
1976    get_tex_level_parameteriv(ctx, texObj, target, level,
1977                              pname, &iparam, false);
1978
1979    *params = (GLfloat) iparam;
1980 }
1981
1982 void GLAPIENTRY
1983 _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
1984                               GLenum pname, GLint *params )
1985 {
1986    struct gl_texture_object *texObj;
1987    GET_CURRENT_CONTEXT(ctx);
1988
1989    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1990       return;
1991
1992    texObj = _mesa_get_current_tex_object(ctx, target);
1993    if (!texObj)
1994       return;
1995
1996    get_tex_level_parameteriv(ctx, texObj, target, level,
1997                              pname, params, false);
1998 }
1999
2000 void GLAPIENTRY
2001 _mesa_GetTextureLevelParameterfv(GLuint texture, GLint level,
2002                                  GLenum pname, GLfloat *params)
2003 {
2004    struct gl_texture_object *texObj;
2005    GLint iparam;
2006    GET_CURRENT_CONTEXT(ctx);
2007
2008    texObj = _mesa_lookup_texture_err(ctx, texture,
2009                                      "glGetTextureLevelParameterfv");
2010    if (!texObj)
2011       return;
2012
2013    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
2014       return;
2015
2016    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
2017                              pname, &iparam, true);
2018
2019    *params = (GLfloat) iparam;
2020 }
2021
2022 void GLAPIENTRY
2023 _mesa_GetTextureLevelParameterfvEXT(GLuint texture, GLenum target, GLint level,
2024                                     GLenum pname, GLfloat *params)
2025 {
2026    struct gl_texture_object *texObj;
2027    GLint iparam;
2028    GET_CURRENT_CONTEXT(ctx);
2029
2030    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2031                                            "glGetTextureLevelParameterfvEXT");
2032    if (!texObj)
2033       return;
2034
2035    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
2036       return;
2037
2038    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
2039                              pname, &iparam, true);
2040
2041    *params = (GLfloat) iparam;
2042 }
2043
2044 void GLAPIENTRY
2045 _mesa_GetMultiTexLevelParameterfvEXT(GLenum texunit, GLenum target, GLint level,
2046                                      GLenum pname, GLfloat *params)
2047 {
2048    struct gl_texture_object *texObj;
2049    GLint iparam;
2050    GET_CURRENT_CONTEXT(ctx);
2051
2052    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2053                                                    texunit - GL_TEXTURE0,
2054                                                    true,
2055                                                    "glGetMultiTexLevelParameterfvEXT");
2056    if (!texObj)
2057       return;
2058
2059    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
2060       return;
2061
2062    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
2063                              pname, &iparam, true);
2064
2065    *params = (GLfloat) iparam;
2066 }
2067
2068 void GLAPIENTRY
2069 _mesa_GetTextureLevelParameteriv(GLuint texture, GLint level,
2070                                  GLenum pname, GLint *params)
2071 {
2072    struct gl_texture_object *texObj;
2073    GET_CURRENT_CONTEXT(ctx);
2074
2075    texObj = _mesa_lookup_texture_err(ctx, texture,
2076                                      "glGetTextureLevelParameteriv");
2077    if (!texObj)
2078       return;
2079
2080    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
2081       return;
2082
2083    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
2084                              pname, params, true);
2085 }
2086
2087 void GLAPIENTRY
2088 _mesa_GetTextureLevelParameterivEXT(GLuint texture, GLenum target, GLint level,
2089                                     GLenum pname, GLint *params)
2090 {
2091    struct gl_texture_object *texObj;
2092    GET_CURRENT_CONTEXT(ctx);
2093
2094    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2095                                            "glGetTextureLevelParameterivEXT");
2096    if (!texObj)
2097       return;
2098
2099    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
2100       return;
2101
2102    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
2103                              pname, params, true);
2104 }
2105
2106 void GLAPIENTRY
2107 _mesa_GetMultiTexLevelParameterivEXT(GLenum texunit, GLenum target, GLint level,
2108                                      GLenum pname, GLint *params)
2109 {
2110    struct gl_texture_object *texObj;
2111    GET_CURRENT_CONTEXT(ctx);
2112
2113    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2114                                                    texunit - GL_TEXTURE0,
2115                                                    true,
2116                                                    "glGetMultiTexLevelParameterivEXT");
2117    if (!texObj)
2118       return;
2119
2120    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
2121       return;
2122
2123    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
2124                              pname, params, true);
2125 }
2126
2127
2128 /**
2129  * This isn't exposed to the rest of the driver because it is a part of the
2130  * OpenGL API that is rarely used.
2131  */
2132 static void
2133 get_tex_parameterfv(struct gl_context *ctx,
2134                     struct gl_texture_object *obj,
2135                     GLenum pname, GLfloat *params, bool dsa)
2136 {
2137    _mesa_lock_context_textures(ctx);
2138    switch (pname) {
2139       case GL_TEXTURE_MAG_FILTER:
2140          *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
2141          break;
2142       case GL_TEXTURE_MIN_FILTER:
2143          *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
2144          break;
2145       case GL_TEXTURE_WRAP_S:
2146          *params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
2147          break;
2148       case GL_TEXTURE_WRAP_T:
2149          *params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
2150          break;
2151       case GL_TEXTURE_WRAP_R:
2152          *params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
2153          break;
2154       case GL_TEXTURE_BORDER_COLOR:
2155          if (ctx->API == API_OPENGLES ||
2156              !ctx->Extensions.ARB_texture_border_clamp)
2157             goto invalid_pname;
2158
2159          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
2160             _mesa_update_state_locked(ctx);
2161          if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
2162             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
2163             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
2164             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
2165             params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
2166          }
2167          else {
2168             params[0] = obj->Sampler.BorderColor.f[0];
2169             params[1] = obj->Sampler.BorderColor.f[1];
2170             params[2] = obj->Sampler.BorderColor.f[2];
2171             params[3] = obj->Sampler.BorderColor.f[3];
2172          }
2173          break;
2174       case GL_TEXTURE_RESIDENT:
2175          if (ctx->API != API_OPENGL_COMPAT)
2176             goto invalid_pname;
2177
2178          *params = 1.0F;
2179          break;
2180       case GL_TEXTURE_PRIORITY:
2181          if (ctx->API != API_OPENGL_COMPAT)
2182             goto invalid_pname;
2183
2184          *params = obj->Priority;
2185          break;
2186       case GL_TEXTURE_MIN_LOD:
2187          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2188             goto invalid_pname;
2189
2190          *params = obj->Sampler.MinLod;
2191          break;
2192       case GL_TEXTURE_MAX_LOD:
2193          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2194             goto invalid_pname;
2195
2196          *params = obj->Sampler.MaxLod;
2197          break;
2198       case GL_TEXTURE_BASE_LEVEL:
2199          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2200             goto invalid_pname;
2201
2202          *params = (GLfloat) obj->BaseLevel;
2203          break;
2204       case GL_TEXTURE_MAX_LEVEL:
2205          *params = (GLfloat) obj->MaxLevel;
2206          break;
2207       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
2208          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
2209             goto invalid_pname;
2210          *params = obj->Sampler.MaxAnisotropy;
2211          break;
2212       case GL_GENERATE_MIPMAP_SGIS:
2213          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
2214             goto invalid_pname;
2215
2216          *params = (GLfloat) obj->GenerateMipmap;
2217          break;
2218       case GL_TEXTURE_COMPARE_MODE_ARB:
2219          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2220              && !_mesa_is_gles3(ctx))
2221             goto invalid_pname;
2222          *params = (GLfloat) obj->Sampler.CompareMode;
2223          break;
2224       case GL_TEXTURE_COMPARE_FUNC_ARB:
2225          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2226              && !_mesa_is_gles3(ctx))
2227             goto invalid_pname;
2228          *params = (GLfloat) obj->Sampler.CompareFunc;
2229          break;
2230       case GL_DEPTH_TEXTURE_MODE_ARB:
2231          /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has
2232           * never existed in OpenGL ES.
2233           */
2234          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
2235             goto invalid_pname;
2236          *params = (GLfloat) obj->DepthMode;
2237          break;
2238       case GL_DEPTH_STENCIL_TEXTURE_MODE:
2239          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
2240             goto invalid_pname;
2241          *params = (GLfloat)
2242             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
2243          break;
2244       case GL_TEXTURE_LOD_BIAS:
2245          if (_mesa_is_gles(ctx))
2246             goto invalid_pname;
2247
2248          *params = obj->Sampler.LodBias;
2249          break;
2250       case GL_TEXTURE_CROP_RECT_OES:
2251          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
2252             goto invalid_pname;
2253
2254          params[0] = (GLfloat) obj->CropRect[0];
2255          params[1] = (GLfloat) obj->CropRect[1];
2256          params[2] = (GLfloat) obj->CropRect[2];
2257          params[3] = (GLfloat) obj->CropRect[3];
2258          break;
2259
2260       case GL_TEXTURE_SWIZZLE_R_EXT:
2261       case GL_TEXTURE_SWIZZLE_G_EXT:
2262       case GL_TEXTURE_SWIZZLE_B_EXT:
2263       case GL_TEXTURE_SWIZZLE_A_EXT:
2264          if ((!_mesa_is_desktop_gl(ctx)
2265               || !ctx->Extensions.EXT_texture_swizzle)
2266              && !_mesa_is_gles3(ctx))
2267             goto invalid_pname;
2268          *params = (GLfloat) obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
2269          break;
2270
2271       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
2272          if ((!_mesa_is_desktop_gl(ctx)
2273               || !ctx->Extensions.EXT_texture_swizzle)
2274              && !_mesa_is_gles3(ctx)) {
2275             goto invalid_pname;
2276          }
2277          else {
2278             GLuint comp;
2279             for (comp = 0; comp < 4; comp++) {
2280                params[comp] = (GLfloat) obj->Swizzle[comp];
2281             }
2282          }
2283          break;
2284
2285       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
2286          if (!_mesa_is_desktop_gl(ctx)
2287              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
2288             goto invalid_pname;
2289          *params = (GLfloat) obj->Sampler.CubeMapSeamless;
2290          break;
2291
2292       case GL_TEXTURE_IMMUTABLE_FORMAT:
2293          *params = (GLfloat) obj->Immutable;
2294          break;
2295
2296       case GL_TEXTURE_IMMUTABLE_LEVELS:
2297          if (_mesa_is_gles3(ctx) || _mesa_has_texture_view(ctx))
2298             *params = (GLfloat) obj->ImmutableLevels;
2299          else
2300             goto invalid_pname;
2301          break;
2302
2303       case GL_TEXTURE_VIEW_MIN_LEVEL:
2304          if (!_mesa_has_texture_view(ctx))
2305             goto invalid_pname;
2306          *params = (GLfloat) obj->MinLevel;
2307          break;
2308
2309       case GL_TEXTURE_VIEW_NUM_LEVELS:
2310          if (!_mesa_has_texture_view(ctx))
2311             goto invalid_pname;
2312          *params = (GLfloat) obj->NumLevels;
2313          break;
2314
2315       case GL_TEXTURE_VIEW_MIN_LAYER:
2316          if (!_mesa_has_texture_view(ctx))
2317             goto invalid_pname;
2318          *params = (GLfloat) obj->MinLayer;
2319          break;
2320
2321       case GL_TEXTURE_VIEW_NUM_LAYERS:
2322          if (!_mesa_has_texture_view(ctx))
2323             goto invalid_pname;
2324          *params = (GLfloat) obj->NumLayers;
2325          break;
2326
2327       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
2328          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
2329             goto invalid_pname;
2330          *params = (GLfloat) obj->RequiredTextureImageUnits;
2331          break;
2332
2333       case GL_TEXTURE_SRGB_DECODE_EXT:
2334          if (!ctx->Extensions.EXT_texture_sRGB_decode)
2335             goto invalid_pname;
2336          *params = (GLfloat) obj->Sampler.sRGBDecode;
2337          break;
2338
2339       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2340          if (!ctx->Extensions.ARB_shader_image_load_store)
2341             goto invalid_pname;
2342          *params = (GLfloat) obj->ImageFormatCompatibilityType;
2343          break;
2344
2345       case GL_TEXTURE_TARGET:
2346          if (ctx->API != API_OPENGL_CORE)
2347             goto invalid_pname;
2348          *params = ENUM_TO_FLOAT(obj->Target);
2349          break;
2350
2351       case GL_TEXTURE_TILING_EXT:
2352          if (!ctx->Extensions.EXT_memory_object)
2353             goto invalid_pname;
2354          *params = ENUM_TO_FLOAT(obj->TextureTiling);
2355          break;
2356
2357       default:
2358          goto invalid_pname;
2359    }
2360
2361    /* no error if we get here */
2362    _mesa_unlock_context_textures(ctx);
2363    return;
2364
2365 invalid_pname:
2366    _mesa_unlock_context_textures(ctx);
2367    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameterfv(pname=0x%x)",
2368                dsa ? "ture" : "", pname);
2369 }
2370
2371
2372 static void
2373 get_tex_parameteriv(struct gl_context *ctx,
2374                     struct gl_texture_object *obj,
2375                     GLenum pname, GLint *params, bool dsa)
2376 {
2377    _mesa_lock_texture(ctx, obj);
2378    switch (pname) {
2379       case GL_TEXTURE_MAG_FILTER:
2380          *params = (GLint) obj->Sampler.MagFilter;
2381          break;
2382       case GL_TEXTURE_MIN_FILTER:
2383          *params = (GLint) obj->Sampler.MinFilter;
2384          break;
2385       case GL_TEXTURE_WRAP_S:
2386          *params = (GLint) obj->Sampler.WrapS;
2387          break;
2388       case GL_TEXTURE_WRAP_T:
2389          *params = (GLint) obj->Sampler.WrapT;
2390          break;
2391       case GL_TEXTURE_WRAP_R:
2392          *params = (GLint) obj->Sampler.WrapR;
2393          break;
2394       case GL_TEXTURE_BORDER_COLOR:
2395          if (ctx->API == API_OPENGLES ||
2396              !ctx->Extensions.ARB_texture_border_clamp)
2397             goto invalid_pname;
2398
2399          {
2400             GLfloat b[4];
2401             b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
2402             b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
2403             b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
2404             b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
2405             params[0] = FLOAT_TO_INT(b[0]);
2406             params[1] = FLOAT_TO_INT(b[1]);
2407             params[2] = FLOAT_TO_INT(b[2]);
2408             params[3] = FLOAT_TO_INT(b[3]);
2409          }
2410          break;
2411       case GL_TEXTURE_RESIDENT:
2412          if (ctx->API != API_OPENGL_COMPAT)
2413             goto invalid_pname;
2414
2415          *params = 1;
2416          break;
2417       case GL_TEXTURE_PRIORITY:
2418          if (ctx->API != API_OPENGL_COMPAT)
2419             goto invalid_pname;
2420
2421          *params = FLOAT_TO_INT(obj->Priority);
2422          break;
2423       case GL_TEXTURE_MIN_LOD:
2424          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2425             goto invalid_pname;
2426          /* GL spec 'Data Conversions' section specifies that floating-point
2427           * value in integer Get function is rounded to nearest integer
2428           */
2429          *params = IROUND(obj->Sampler.MinLod);
2430          break;
2431       case GL_TEXTURE_MAX_LOD:
2432          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2433             goto invalid_pname;
2434          /* GL spec 'Data Conversions' section specifies that floating-point
2435           * value in integer Get function is rounded to nearest integer
2436           */
2437          *params = IROUND(obj->Sampler.MaxLod);
2438          break;
2439       case GL_TEXTURE_BASE_LEVEL:
2440          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2441             goto invalid_pname;
2442
2443          *params = obj->BaseLevel;
2444          break;
2445       case GL_TEXTURE_MAX_LEVEL:
2446          *params = obj->MaxLevel;
2447          break;
2448       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
2449          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
2450             goto invalid_pname;
2451          /* GL spec 'Data Conversions' section specifies that floating-point
2452           * value in integer Get function is rounded to nearest integer
2453           */
2454          *params = IROUND(obj->Sampler.MaxAnisotropy);
2455          break;
2456       case GL_GENERATE_MIPMAP_SGIS:
2457          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
2458             goto invalid_pname;
2459
2460          *params = (GLint) obj->GenerateMipmap;
2461          break;
2462       case GL_TEXTURE_COMPARE_MODE_ARB:
2463          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2464              && !_mesa_is_gles3(ctx))
2465             goto invalid_pname;
2466          *params = (GLint) obj->Sampler.CompareMode;
2467          break;
2468       case GL_TEXTURE_COMPARE_FUNC_ARB:
2469          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2470              && !_mesa_is_gles3(ctx))
2471             goto invalid_pname;
2472          *params = (GLint) obj->Sampler.CompareFunc;
2473          break;
2474       case GL_DEPTH_TEXTURE_MODE_ARB:
2475          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
2476             goto invalid_pname;
2477          *params = (GLint) obj->DepthMode;
2478          break;
2479       case GL_DEPTH_STENCIL_TEXTURE_MODE:
2480          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
2481             goto invalid_pname;
2482          *params = (GLint)
2483             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
2484          break;
2485       case GL_TEXTURE_LOD_BIAS:
2486          if (_mesa_is_gles(ctx))
2487             goto invalid_pname;
2488
2489          /* GL spec 'Data Conversions' section specifies that floating-point
2490           * value in integer Get function is rounded to nearest integer
2491           */
2492          *params = IROUND(obj->Sampler.LodBias);
2493          break;
2494       case GL_TEXTURE_CROP_RECT_OES:
2495          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
2496             goto invalid_pname;
2497
2498          params[0] = obj->CropRect[0];
2499          params[1] = obj->CropRect[1];
2500          params[2] = obj->CropRect[2];
2501          params[3] = obj->CropRect[3];
2502          break;
2503       case GL_TEXTURE_SWIZZLE_R_EXT:
2504       case GL_TEXTURE_SWIZZLE_G_EXT:
2505       case GL_TEXTURE_SWIZZLE_B_EXT:
2506       case GL_TEXTURE_SWIZZLE_A_EXT:
2507          if ((!_mesa_is_desktop_gl(ctx)
2508               || !ctx->Extensions.EXT_texture_swizzle)
2509              && !_mesa_is_gles3(ctx))
2510             goto invalid_pname;
2511          *params = obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
2512          break;
2513
2514       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
2515          if ((!_mesa_is_desktop_gl(ctx)
2516               || !ctx->Extensions.EXT_texture_swizzle)
2517              && !_mesa_is_gles3(ctx))
2518             goto invalid_pname;
2519          COPY_4V(params, obj->Swizzle);
2520          break;
2521
2522       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
2523          if (!_mesa_is_desktop_gl(ctx)
2524              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
2525             goto invalid_pname;
2526          *params = (GLint) obj->Sampler.CubeMapSeamless;
2527          break;
2528
2529       case GL_TEXTURE_IMMUTABLE_FORMAT:
2530          *params = (GLint) obj->Immutable;
2531          break;
2532
2533       case GL_TEXTURE_IMMUTABLE_LEVELS:
2534          if (_mesa_is_gles3(ctx) ||
2535              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
2536             *params = obj->ImmutableLevels;
2537          else
2538             goto invalid_pname;
2539          break;
2540
2541       case GL_TEXTURE_VIEW_MIN_LEVEL:
2542          if (!ctx->Extensions.ARB_texture_view)
2543             goto invalid_pname;
2544          *params = (GLint) obj->MinLevel;
2545          break;
2546
2547       case GL_TEXTURE_VIEW_NUM_LEVELS:
2548          if (!ctx->Extensions.ARB_texture_view)
2549             goto invalid_pname;
2550          *params = (GLint) obj->NumLevels;
2551          break;
2552
2553       case GL_TEXTURE_VIEW_MIN_LAYER:
2554          if (!ctx->Extensions.ARB_texture_view)
2555             goto invalid_pname;
2556          *params = (GLint) obj->MinLayer;
2557          break;
2558
2559       case GL_TEXTURE_VIEW_NUM_LAYERS:
2560          if (!ctx->Extensions.ARB_texture_view)
2561             goto invalid_pname;
2562          *params = (GLint) obj->NumLayers;
2563          break;
2564
2565       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
2566          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
2567             goto invalid_pname;
2568          *params = obj->RequiredTextureImageUnits;
2569          break;
2570
2571       case GL_TEXTURE_SRGB_DECODE_EXT:
2572          if (!ctx->Extensions.EXT_texture_sRGB_decode)
2573             goto invalid_pname;
2574          *params = obj->Sampler.sRGBDecode;
2575          break;
2576
2577       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2578          if (!ctx->Extensions.ARB_shader_image_load_store)
2579             goto invalid_pname;
2580          *params = obj->ImageFormatCompatibilityType;
2581          break;
2582
2583       case GL_TEXTURE_TARGET:
2584          if (ctx->API != API_OPENGL_CORE)
2585             goto invalid_pname;
2586          *params = (GLint) obj->Target;
2587          break;
2588
2589       case GL_TEXTURE_TILING_EXT:
2590          if (!ctx->Extensions.EXT_memory_object)
2591             goto invalid_pname;
2592          *params = (GLint) obj->TextureTiling;
2593          break;
2594
2595       default:
2596          goto invalid_pname;
2597    }
2598
2599    /* no error if we get here */
2600    _mesa_unlock_texture(ctx, obj);
2601    return;
2602
2603 invalid_pname:
2604    _mesa_unlock_texture(ctx, obj);
2605    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameteriv(pname=0x%x)",
2606                dsa ? "ture" : "", pname);
2607 }
2608
2609 static void
2610 get_tex_parameterIiv(struct gl_context *ctx,
2611                      struct gl_texture_object *obj,
2612                      GLenum pname, GLint *params, bool dsa)
2613 {
2614    switch (pname) {
2615    case GL_TEXTURE_BORDER_COLOR:
2616       COPY_4V(params, obj->Sampler.BorderColor.i);
2617       break;
2618    default:
2619       get_tex_parameteriv(ctx, obj, pname, params, dsa);
2620    }
2621 }
2622
2623 void GLAPIENTRY
2624 _mesa_GetTexParameterfv(GLenum target, GLenum pname, GLfloat *params)
2625 {
2626    struct gl_texture_object *obj;
2627    GET_CURRENT_CONTEXT(ctx);
2628
2629    obj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2630                                                 ctx->Texture.CurrentUnit,
2631                                                 false,
2632                                                 "glGetTexParameterfv");
2633    if (!obj)
2634       return;
2635
2636    get_tex_parameterfv(ctx, obj, pname, params, false);
2637 }
2638
2639 void GLAPIENTRY
2640 _mesa_GetTexParameteriv(GLenum target, GLenum pname, GLint *params)
2641 {
2642    struct gl_texture_object *obj;
2643    GET_CURRENT_CONTEXT(ctx);
2644
2645    obj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2646                                                 ctx->Texture.CurrentUnit,
2647                                                 false,
2648                                                 "glGetTexParameteriv");
2649    if (!obj)
2650       return;
2651
2652    get_tex_parameteriv(ctx, obj, pname, params, false);
2653 }
2654
2655 /** New in GL 3.0 */
2656 void GLAPIENTRY
2657 _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
2658 {
2659    struct gl_texture_object *texObj;
2660    GET_CURRENT_CONTEXT(ctx);
2661
2662    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2663                                                 ctx->Texture.CurrentUnit,
2664                                                 false,
2665                                                 "glGetTexParameterIiv");
2666    if (!texObj)
2667       return;
2668
2669    get_tex_parameterIiv(ctx, texObj, pname, params, false);
2670 }
2671
2672
2673 /** New in GL 3.0 */
2674 void GLAPIENTRY
2675 _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
2676 {
2677    struct gl_texture_object *texObj;
2678    GET_CURRENT_CONTEXT(ctx);
2679
2680    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2681                                                 ctx->Texture.CurrentUnit,
2682                                                 false,
2683                                                 "glGetTexParameterIuiv");
2684    if (!texObj)
2685       return;
2686
2687    get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, false);
2688 }
2689
2690 void GLAPIENTRY
2691 _mesa_GetTextureParameterfvEXT(GLuint texture, GLenum target, GLenum pname, GLfloat *params)
2692 {
2693    struct gl_texture_object *texObj;
2694    GET_CURRENT_CONTEXT(ctx);
2695
2696    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2697                                            "glGetTextureParameterfvEXT");
2698    if (!texObj)
2699       return;
2700
2701    if (!is_texparameteri_target_valid(texObj->Target)) {
2702       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTextureParameterfvEXT");
2703       return;
2704    }
2705
2706    get_tex_parameterfv(ctx, texObj, pname, params, true);
2707 }
2708
2709 void GLAPIENTRY
2710 _mesa_GetMultiTexParameterfvEXT(GLenum texunit, GLenum target, GLenum pname, GLfloat *params)
2711 {
2712    struct gl_texture_object *texObj;
2713    GET_CURRENT_CONTEXT(ctx);
2714
2715    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2716                                                    texunit - GL_TEXTURE0,
2717                                                    false,
2718                                                    "glGetMultiTexParameterfvEXT");
2719    if (!texObj)
2720       return;
2721
2722    if (!is_texparameteri_target_valid(texObj->Target)) {
2723       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMultiTexParameterfvEXT");
2724       return;
2725    }
2726    get_tex_parameterfv(ctx, texObj, pname, params, true);
2727 }
2728
2729 void GLAPIENTRY
2730 _mesa_GetTextureParameterfv(GLuint texture, GLenum pname, GLfloat *params)
2731 {
2732    struct gl_texture_object *obj;
2733    GET_CURRENT_CONTEXT(ctx);
2734
2735    obj = get_texobj_by_name(ctx, texture, "glGetTextureParameterfv");
2736    if (!obj)
2737       return;
2738
2739    get_tex_parameterfv(ctx, obj, pname, params, true);
2740 }
2741
2742 void GLAPIENTRY
2743 _mesa_GetTextureParameterivEXT(GLuint texture, GLenum target, GLenum pname, GLint *params)
2744 {
2745    struct gl_texture_object *texObj;
2746    GET_CURRENT_CONTEXT(ctx);
2747
2748    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2749                                            "glGetTextureParameterivEXT");
2750    if (!texObj)
2751       return;
2752
2753    if (!is_texparameteri_target_valid(texObj->Target)) {
2754       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTextureParameterivEXT");
2755       return;
2756    }
2757    get_tex_parameteriv(ctx, texObj, pname, params, true);
2758 }
2759
2760 void GLAPIENTRY
2761 _mesa_GetMultiTexParameterivEXT(GLenum texunit, GLenum target, GLenum pname, GLint *params)
2762 {
2763    struct gl_texture_object *texObj;
2764    GET_CURRENT_CONTEXT(ctx);
2765
2766    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2767                                                    texunit - GL_TEXTURE0,
2768                                                    false,
2769                                                    "glGetMultiTexParameterivEXT");
2770    if (!texObj)
2771       return;
2772
2773    if (!is_texparameteri_target_valid(texObj->Target)) {
2774       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMultiTexParameterivEXT");
2775       return;
2776    }
2777    get_tex_parameteriv(ctx, texObj, pname, params, true);
2778 }
2779
2780 void GLAPIENTRY
2781 _mesa_GetTextureParameteriv(GLuint texture, GLenum pname, GLint *params)
2782 {
2783    struct gl_texture_object *obj;
2784    GET_CURRENT_CONTEXT(ctx);
2785
2786    obj = get_texobj_by_name(ctx, texture, "glGetTextureParameteriv");
2787    if (!obj)
2788       return;
2789
2790    get_tex_parameteriv(ctx, obj, pname, params, true);
2791 }
2792
2793 void GLAPIENTRY
2794 _mesa_GetTextureParameterIiv(GLuint texture, GLenum pname, GLint *params)
2795 {
2796    struct gl_texture_object *texObj;
2797    GET_CURRENT_CONTEXT(ctx);
2798
2799    texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIiv");
2800    if (!texObj)
2801       return;
2802
2803    get_tex_parameterIiv(ctx, texObj, pname, params, true);
2804 }
2805
2806 void GLAPIENTRY
2807 _mesa_GetTextureParameterIivEXT(GLuint texture, GLenum target, GLenum pname, GLint *params)
2808 {
2809    struct gl_texture_object *texObj;
2810    GET_CURRENT_CONTEXT(ctx);
2811
2812    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2813                                            "glGetTextureParameterIivEXT");
2814    if (!texObj)
2815       return;
2816
2817
2818    get_tex_parameterIiv(ctx, texObj, pname, params, true);
2819 }
2820
2821 void GLAPIENTRY
2822 _mesa_GetMultiTexParameterIivEXT(GLenum texunit, GLenum target, GLenum pname,
2823                                  GLint *params)
2824 {
2825    struct gl_texture_object *texObj;
2826    GET_CURRENT_CONTEXT(ctx);
2827
2828    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2829                                                    texunit - GL_TEXTURE0,
2830                                                    true,
2831                                                    "glGetMultiTexParameterIiv");
2832    if (!texObj)
2833       return;
2834
2835    get_tex_parameterIiv(ctx, texObj, pname, params, true);
2836 }
2837
2838 void GLAPIENTRY
2839 _mesa_GetTextureParameterIuiv(GLuint texture, GLenum pname, GLuint *params)
2840 {
2841    struct gl_texture_object *texObj;
2842    GET_CURRENT_CONTEXT(ctx);
2843
2844    texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIuiv");
2845    if (!texObj)
2846       return;
2847
2848    get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, true);
2849 }
2850
2851 void GLAPIENTRY
2852 _mesa_GetTextureParameterIuivEXT(GLuint texture, GLenum target, GLenum pname,
2853                                  GLuint *params)
2854 {
2855    struct gl_texture_object *texObj;
2856    GET_CURRENT_CONTEXT(ctx);
2857
2858    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2859                                            "glGetTextureParameterIuvEXT");
2860    if (!texObj)
2861       return;
2862
2863    get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, true);
2864 }
2865
2866 void GLAPIENTRY
2867 _mesa_GetMultiTexParameterIuivEXT(GLenum texunit, GLenum target, GLenum pname,
2868                                GLuint *params)
2869 {
2870    struct gl_texture_object *texObj;
2871    GET_CURRENT_CONTEXT(ctx);
2872
2873    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2874                                                    texunit - GL_TEXTURE0,
2875                                                    true,
2876                                                    "glGetMultiTexParameterIuiv");
2877    if (!texObj)
2878       return;
2879
2880    get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, true);
2881 }