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_TextureParameterfEXT(GLuint texture, GLenum target, GLenum pname, GLfloat param)
1200 {
1201    struct gl_texture_object *texObj;
1202    GET_CURRENT_CONTEXT(ctx);
1203
1204    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1205                                            "glTextureParameterfEXT");
1206    if (!texObj)
1207       return;
1208
1209    if (!is_texparameteri_target_valid(texObj->Target)) {
1210       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterfEXT");
1211       return;
1212    }
1213
1214    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1215 }
1216
1217 void GLAPIENTRY
1218 _mesa_TextureParameterf(GLuint texture, GLenum pname, GLfloat param)
1219 {
1220    struct gl_texture_object *texObj;
1221    GET_CURRENT_CONTEXT(ctx);
1222
1223    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterf");
1224    if (!texObj)
1225       return;
1226
1227    _mesa_texture_parameterf(ctx, texObj, pname, param, true);
1228 }
1229
1230 void GLAPIENTRY
1231 _mesa_TextureParameteriEXT(GLuint texture, GLenum target, GLenum pname, GLint param)
1232 {
1233    struct gl_texture_object *texObj;
1234    GET_CURRENT_CONTEXT(ctx);
1235
1236    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1237                                            "glTextureParameteriEXT");
1238    if (!texObj)
1239       return;
1240
1241    if (!is_texparameteri_target_valid(texObj->Target)) {
1242       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameteriEXT(target)");
1243       return;
1244    }
1245
1246    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1247 }
1248
1249 void GLAPIENTRY
1250 _mesa_TextureParameteri(GLuint texture, GLenum pname, GLint param)
1251 {
1252    struct gl_texture_object *texObj;
1253    GET_CURRENT_CONTEXT(ctx);
1254
1255    texObj = get_texobj_by_name(ctx, texture, "glTextureParameteri");
1256    if (!texObj)
1257       return;
1258
1259    _mesa_texture_parameteri(ctx, texObj, pname, param, true);
1260 }
1261
1262 void GLAPIENTRY
1263 _mesa_TextureParameterivEXT(GLuint texture, GLenum target, GLenum pname,
1264                          const GLint *params)
1265 {
1266    struct gl_texture_object *texObj;
1267    GET_CURRENT_CONTEXT(ctx);
1268
1269    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1270                                            "glTextureParameterivEXT");
1271    if (!texObj)
1272       return;
1273
1274    if (!is_texparameteri_target_valid(texObj->Target)) {
1275       _mesa_error(ctx, GL_INVALID_OPERATION, "glTextureParameterivEXT(target)");
1276       return;
1277    }
1278
1279    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1280 }
1281
1282 void GLAPIENTRY
1283 _mesa_TextureParameteriv(GLuint texture, GLenum pname,
1284                          const GLint *params)
1285 {
1286    struct gl_texture_object *texObj;
1287    GET_CURRENT_CONTEXT(ctx);
1288
1289    texObj = get_texobj_by_name(ctx, texture, "glTextureParameteriv");
1290    if (!texObj)
1291       return;
1292
1293    _mesa_texture_parameteriv(ctx, texObj, pname, params, true);
1294 }
1295
1296
1297 void GLAPIENTRY
1298 _mesa_TextureParameterIiv(GLuint texture, GLenum pname, const GLint *params)
1299 {
1300    struct gl_texture_object *texObj;
1301    GET_CURRENT_CONTEXT(ctx);
1302
1303    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIiv");
1304    if (!texObj)
1305       return;
1306
1307    _mesa_texture_parameterIiv(ctx, texObj, pname, params, true);
1308 }
1309
1310 void GLAPIENTRY
1311 _mesa_TextureParameterIuiv(GLuint texture, GLenum pname, const GLuint *params)
1312 {
1313    struct gl_texture_object *texObj;
1314    GET_CURRENT_CONTEXT(ctx);
1315
1316    texObj = get_texobj_by_name(ctx, texture, "glTextureParameterIuiv");
1317    if (!texObj)
1318       return;
1319
1320    _mesa_texture_parameterIuiv(ctx, texObj, pname, params, true);
1321 }
1322
1323 GLboolean
1324 _mesa_legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target,
1325                                            bool dsa)
1326 {
1327    /* Common targets for desktop GL and GLES 3.1. */
1328    switch (target) {
1329    case GL_TEXTURE_2D:
1330    case GL_TEXTURE_3D:
1331       return GL_TRUE;
1332    case GL_TEXTURE_2D_ARRAY_EXT:
1333       return ctx->Extensions.EXT_texture_array;
1334    case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1335    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1336    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1337    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1338    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1339    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1340       return ctx->Extensions.ARB_texture_cube_map;
1341    case GL_TEXTURE_2D_MULTISAMPLE:
1342    case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
1343       return ctx->Extensions.ARB_texture_multisample;
1344    case GL_TEXTURE_BUFFER:
1345       /* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts,
1346        * but not in earlier versions that expose ARB_texture_buffer_object.
1347        *
1348        * From the ARB_texture_buffer_object spec:
1349        * "(7) Do buffer textures support texture parameters (TexParameter) or
1350        *      queries (GetTexParameter, GetTexLevelParameter, GetTexImage)?
1351        *
1352        *    RESOLVED:  No. [...] Note that the spec edits above don't add
1353        *    explicit error language for any of these cases.  That is because
1354        *    each of the functions enumerate the set of valid <target>
1355        *    parameters.  Not editing the spec to allow TEXTURE_BUFFER_ARB in
1356        *    these cases means that target is not legal, and an INVALID_ENUM
1357        *    error should be generated."
1358        *
1359        * From the OpenGL 3.1 spec:
1360        * "target may also be TEXTURE_BUFFER, indicating the texture buffer."
1361        */
1362       return (_mesa_is_desktop_gl(ctx) && ctx->Version >= 31) ||
1363              _mesa_has_OES_texture_buffer(ctx);
1364    case GL_TEXTURE_CUBE_MAP_ARRAY:
1365       return _mesa_has_texture_cube_map_array(ctx);
1366    }
1367
1368    if (!_mesa_is_desktop_gl(ctx))
1369       return GL_FALSE;
1370
1371    /* Rest of the desktop GL targets. */
1372    switch (target) {
1373    case GL_TEXTURE_1D:
1374    case GL_PROXY_TEXTURE_1D:
1375    case GL_PROXY_TEXTURE_2D:
1376    case GL_PROXY_TEXTURE_3D:
1377       return GL_TRUE;
1378    case GL_PROXY_TEXTURE_CUBE_MAP:
1379       return ctx->Extensions.ARB_texture_cube_map;
1380    case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1381       return ctx->Extensions.ARB_texture_cube_map_array;
1382    case GL_TEXTURE_RECTANGLE_NV:
1383    case GL_PROXY_TEXTURE_RECTANGLE_NV:
1384       return ctx->Extensions.NV_texture_rectangle;
1385    case GL_TEXTURE_1D_ARRAY_EXT:
1386    case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1387    case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1388       return ctx->Extensions.EXT_texture_array;
1389    case GL_PROXY_TEXTURE_2D_MULTISAMPLE:
1390    case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY:
1391       return ctx->Extensions.ARB_texture_multisample;
1392
1393    /*  This is a valid target for dsa, but the OpenGL 4.5 core spec
1394     *  (30.10.2014) Section 8.11 Texture Queries says:
1395     *       "For GetTextureLevelParameter* only, texture may also be a cube
1396     *       map texture object.  In this case the query is always performed
1397     *       for face zero (the TEXTURE_CUBE_MAP_POSITIVE_X face), since there
1398     *       is no way to specify another face."
1399     */
1400    case GL_TEXTURE_CUBE_MAP:
1401       return dsa;
1402    default:
1403       return GL_FALSE;
1404    }
1405 }
1406
1407
1408 static void
1409 get_tex_level_parameter_image(struct gl_context *ctx,
1410                               const struct gl_texture_object *texObj,
1411                               GLenum target, GLint level,
1412                               GLenum pname, GLint *params,
1413                               bool dsa)
1414 {
1415    const struct gl_texture_image *img = NULL;
1416    struct gl_texture_image dummy_image;
1417    mesa_format texFormat;
1418    const char *suffix = dsa ? "ture" : "";
1419
1420    img = _mesa_select_tex_image(texObj, target, level);
1421    if (!img || img->TexFormat == MESA_FORMAT_NONE) {
1422       /* In case of undefined texture image return the default values.
1423        *
1424        * From OpenGL 4.0 spec, page 398:
1425        *    "The initial internal format of a texel array is RGBA
1426        *     instead of 1. TEXTURE_COMPONENTS is deprecated; always
1427        *     use TEXTURE_INTERNAL_FORMAT."
1428        */
1429       memset(&dummy_image, 0, sizeof(dummy_image));
1430       dummy_image.TexFormat = MESA_FORMAT_NONE;
1431       dummy_image.InternalFormat = GL_RGBA;
1432       dummy_image._BaseFormat = GL_NONE;
1433       dummy_image.FixedSampleLocations = GL_TRUE;
1434
1435       img = &dummy_image;
1436    }
1437
1438    texFormat = img->TexFormat;
1439
1440    switch (pname) {
1441       case GL_TEXTURE_WIDTH:
1442          *params = img->Width;
1443          break;
1444       case GL_TEXTURE_HEIGHT:
1445          *params = img->Height;
1446          break;
1447       case GL_TEXTURE_DEPTH:
1448          *params = img->Depth;
1449          break;
1450       case GL_TEXTURE_INTERNAL_FORMAT:
1451          if (_mesa_is_format_compressed(texFormat)) {
1452             /* need to return the actual compressed format */
1453             *params = _mesa_compressed_format_to_glenum(ctx, texFormat);
1454          }
1455          else {
1456             /* If the true internal format is not compressed but the user
1457              * requested a generic compressed format, we have to return the
1458              * generic base format that matches.
1459              *
1460              * From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec:
1461              *
1462              *     "If no specific compressed format is available,
1463              *     internalformat is instead replaced by the corresponding base
1464              *     internal format."
1465              *
1466              * Otherwise just return the user's requested internal format
1467              */
1468             const GLenum f =
1469                _mesa_gl_compressed_format_base_format(img->InternalFormat);
1470
1471             *params = (f != 0) ? f : img->InternalFormat;
1472          }
1473          break;
1474       case GL_TEXTURE_BORDER:
1475          if (ctx->API != API_OPENGL_COMPAT)
1476             goto invalid_pname;
1477          *params = img->Border;
1478          break;
1479       case GL_TEXTURE_RED_SIZE:
1480       case GL_TEXTURE_GREEN_SIZE:
1481       case GL_TEXTURE_BLUE_SIZE:
1482       case GL_TEXTURE_ALPHA_SIZE:
1483          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1484             *params = _mesa_get_format_bits(texFormat, pname);
1485          else
1486             *params = 0;
1487          break;
1488       case GL_TEXTURE_INTENSITY_SIZE:
1489       case GL_TEXTURE_LUMINANCE_SIZE:
1490          if (ctx->API != API_OPENGL_COMPAT)
1491             goto invalid_pname;
1492          if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) {
1493             *params = _mesa_get_format_bits(texFormat, pname);
1494             if (*params == 0) {
1495                /* intensity or luminance is probably stored as RGB[A] */
1496                *params = MIN2(_mesa_get_format_bits(texFormat,
1497                                                     GL_TEXTURE_RED_SIZE),
1498                               _mesa_get_format_bits(texFormat,
1499                                                     GL_TEXTURE_GREEN_SIZE));
1500             }
1501             if (*params == 0 && pname == GL_TEXTURE_INTENSITY_SIZE) {
1502                /* Gallium may store intensity as LA */
1503                *params = _mesa_get_format_bits(texFormat,
1504                                                GL_TEXTURE_ALPHA_SIZE);
1505             }
1506          }
1507          else {
1508             *params = 0;
1509          }
1510          break;
1511       case GL_TEXTURE_DEPTH_SIZE_ARB:
1512          if (!ctx->Extensions.ARB_depth_texture)
1513             goto invalid_pname;
1514          *params = _mesa_get_format_bits(texFormat, pname);
1515          break;
1516       case GL_TEXTURE_STENCIL_SIZE:
1517          *params = _mesa_get_format_bits(texFormat, pname);
1518          break;
1519       case GL_TEXTURE_SHARED_SIZE:
1520          if (ctx->Version < 30 &&
1521              !ctx->Extensions.EXT_texture_shared_exponent)
1522             goto invalid_pname;
1523          *params = texFormat == MESA_FORMAT_R9G9B9E5_FLOAT ? 5 : 0;
1524          break;
1525
1526       /* GL_ARB_texture_compression */
1527       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1528          if (_mesa_is_format_compressed(texFormat) &&
1529              !_mesa_is_proxy_texture(target)) {
1530             *params = _mesa_format_image_size(texFormat, img->Width,
1531                                               img->Height, img->Depth);
1532          } else {
1533             _mesa_error(ctx, GL_INVALID_OPERATION,
1534                         "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1535                         _mesa_enum_to_string(pname));
1536          }
1537          break;
1538       case GL_TEXTURE_COMPRESSED:
1539          *params = (GLint) _mesa_is_format_compressed(texFormat);
1540          break;
1541
1542       /* GL_ARB_texture_float */
1543       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1544       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1545          if (ctx->API != API_OPENGL_COMPAT)
1546             goto invalid_pname;
1547          /* FALLTHROUGH */
1548       case GL_TEXTURE_RED_TYPE_ARB:
1549       case GL_TEXTURE_GREEN_TYPE_ARB:
1550       case GL_TEXTURE_BLUE_TYPE_ARB:
1551       case GL_TEXTURE_ALPHA_TYPE_ARB:
1552       case GL_TEXTURE_DEPTH_TYPE_ARB:
1553          if (!ctx->Extensions.ARB_texture_float)
1554             goto invalid_pname;
1555          if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
1556             *params = _mesa_get_format_datatype(texFormat);
1557          else
1558             *params = GL_NONE;
1559          break;
1560
1561       /* GL_ARB_texture_multisample */
1562       case GL_TEXTURE_SAMPLES:
1563          if (!ctx->Extensions.ARB_texture_multisample)
1564             goto invalid_pname;
1565          *params = img->NumSamples;
1566          break;
1567
1568       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1569          if (!ctx->Extensions.ARB_texture_multisample)
1570             goto invalid_pname;
1571          *params = img->FixedSampleLocations;
1572          break;
1573
1574       /* There is never a buffer data store here, but these pnames still have
1575        * to work.
1576        */
1577
1578       /* GL_ARB_texture_buffer_object */
1579       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1580          if (!ctx->Extensions.ARB_texture_buffer_object)
1581             goto invalid_pname;
1582          *params = 0;
1583          break;
1584
1585       /* GL_ARB_texture_buffer_range */
1586       case GL_TEXTURE_BUFFER_OFFSET:
1587          if (!ctx->Extensions.ARB_texture_buffer_range)
1588             goto invalid_pname;
1589          *params = 0;
1590          break;
1591       case GL_TEXTURE_BUFFER_SIZE:
1592          if (!ctx->Extensions.ARB_texture_buffer_range)
1593             goto invalid_pname;
1594          *params = 0;
1595          break;
1596
1597       default:
1598          goto invalid_pname;
1599    }
1600
1601    /* no error if we get here */
1602    return;
1603
1604 invalid_pname:
1605    _mesa_error(ctx, GL_INVALID_ENUM,
1606                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1607                _mesa_enum_to_string(pname));
1608 }
1609
1610
1611 /**
1612  * Handle a glGetTexLevelParamteriv() call for a texture buffer.
1613  */
1614 static void
1615 get_tex_level_parameter_buffer(struct gl_context *ctx,
1616                                const struct gl_texture_object *texObj,
1617                                GLenum pname, GLint *params, bool dsa)
1618 {
1619    const struct gl_buffer_object *bo = texObj->BufferObject;
1620    mesa_format texFormat = texObj->_BufferObjectFormat;
1621    int bytes = MAX2(1, _mesa_get_format_bytes(texFormat));
1622    GLenum internalFormat = texObj->BufferObjectFormat;
1623    GLenum baseFormat = _mesa_get_format_base_format(texFormat);
1624    const char *suffix = dsa ? "ture" : "";
1625
1626    assert(texObj->Target == GL_TEXTURE_BUFFER);
1627
1628    if (!bo) {
1629       /* undefined texture buffer object */
1630       switch (pname) {
1631       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1632          *params = GL_TRUE;
1633          break;
1634       case GL_TEXTURE_INTERNAL_FORMAT:
1635          *params = internalFormat;
1636          break;
1637       default:
1638          *params = 0;
1639          break;
1640       }
1641       return;
1642    }
1643
1644    switch (pname) {
1645       case GL_TEXTURE_BUFFER_DATA_STORE_BINDING:
1646          *params = bo->Name;
1647          break;
1648       case GL_TEXTURE_WIDTH:
1649          *params = ((texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize)
1650             / bytes;
1651          break;
1652       case GL_TEXTURE_HEIGHT:
1653       case GL_TEXTURE_DEPTH:
1654          *params = 1;
1655          break;
1656       case GL_TEXTURE_BORDER:
1657       case GL_TEXTURE_SHARED_SIZE:
1658       case GL_TEXTURE_COMPRESSED:
1659          *params = 0;
1660          break;
1661       case GL_TEXTURE_INTERNAL_FORMAT:
1662          *params = internalFormat;
1663          break;
1664       case GL_TEXTURE_RED_SIZE:
1665       case GL_TEXTURE_GREEN_SIZE:
1666       case GL_TEXTURE_BLUE_SIZE:
1667       case GL_TEXTURE_ALPHA_SIZE:
1668          if (_mesa_base_format_has_channel(baseFormat, pname))
1669             *params = _mesa_get_format_bits(texFormat, pname);
1670          else
1671             *params = 0;
1672          break;
1673       case GL_TEXTURE_INTENSITY_SIZE:
1674       case GL_TEXTURE_LUMINANCE_SIZE:
1675          if (_mesa_base_format_has_channel(baseFormat, pname)) {
1676             *params = _mesa_get_format_bits(texFormat, pname);
1677             if (*params == 0) {
1678                /* intensity or luminance is probably stored as RGB[A] */
1679                *params = MIN2(_mesa_get_format_bits(texFormat,
1680                                                     GL_TEXTURE_RED_SIZE),
1681                               _mesa_get_format_bits(texFormat,
1682                                                     GL_TEXTURE_GREEN_SIZE));
1683             }
1684          } else {
1685             *params = 0;
1686          }
1687          break;
1688       case GL_TEXTURE_DEPTH_SIZE_ARB:
1689       case GL_TEXTURE_STENCIL_SIZE_EXT:
1690          *params = _mesa_get_format_bits(texFormat, pname);
1691          break;
1692
1693       /* GL_ARB_texture_buffer_range */
1694       case GL_TEXTURE_BUFFER_OFFSET:
1695          if (!ctx->Extensions.ARB_texture_buffer_range)
1696             goto invalid_pname;
1697          *params = texObj->BufferOffset;
1698          break;
1699       case GL_TEXTURE_BUFFER_SIZE:
1700          if (!ctx->Extensions.ARB_texture_buffer_range)
1701             goto invalid_pname;
1702          *params = (texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize;
1703          break;
1704
1705       /* GL_ARB_texture_multisample */
1706       case GL_TEXTURE_SAMPLES:
1707          if (!ctx->Extensions.ARB_texture_multisample)
1708             goto invalid_pname;
1709          *params = 0;
1710          break;
1711
1712       case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS:
1713          if (!ctx->Extensions.ARB_texture_multisample)
1714             goto invalid_pname;
1715          *params = GL_TRUE;
1716          break;
1717
1718       /* GL_ARB_texture_compression */
1719       case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
1720          /* Always illegal for GL_TEXTURE_BUFFER */
1721          _mesa_error(ctx, GL_INVALID_OPERATION,
1722                      "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1723                      _mesa_enum_to_string(pname));
1724          break;
1725
1726       /* GL_ARB_texture_float */
1727       case GL_TEXTURE_RED_TYPE_ARB:
1728       case GL_TEXTURE_GREEN_TYPE_ARB:
1729       case GL_TEXTURE_BLUE_TYPE_ARB:
1730       case GL_TEXTURE_ALPHA_TYPE_ARB:
1731       case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1732       case GL_TEXTURE_INTENSITY_TYPE_ARB:
1733       case GL_TEXTURE_DEPTH_TYPE_ARB:
1734          if (!ctx->Extensions.ARB_texture_float)
1735             goto invalid_pname;
1736          if (_mesa_base_format_has_channel(baseFormat, pname))
1737             *params = _mesa_get_format_datatype(texFormat);
1738          else
1739             *params = GL_NONE;
1740          break;
1741
1742       default:
1743          goto invalid_pname;
1744    }
1745
1746    /* no error if we get here */
1747    return;
1748
1749 invalid_pname:
1750    _mesa_error(ctx, GL_INVALID_ENUM,
1751                "glGetTex%sLevelParameter[if]v(pname=%s)", suffix,
1752                _mesa_enum_to_string(pname));
1753 }
1754
1755 static bool
1756 valid_tex_level_parameteriv_target(struct gl_context *ctx, GLenum target,
1757                                    bool dsa)
1758 {
1759    const char *suffix = dsa ? "ture" : "";
1760    if (!_mesa_legal_get_tex_level_parameter_target(ctx, target, dsa)) {
1761       _mesa_error(ctx, GL_INVALID_ENUM,
1762                   "glGetTex%sLevelParameter[if]v(target=%s)", suffix,
1763                   _mesa_enum_to_string(target));
1764       return false;
1765    }
1766    return true;
1767 }
1768
1769 /**
1770  * This isn't exposed to the rest of the driver because it is a part of the
1771  * OpenGL API that is rarely used.
1772  */
1773 static void
1774 get_tex_level_parameteriv(struct gl_context *ctx,
1775                           struct gl_texture_object *texObj,
1776                           GLenum target, GLint level,
1777                           GLenum pname, GLint *params,
1778                           bool dsa)
1779 {
1780    GLint maxLevels;
1781    const char *suffix = dsa ? "ture" : "";
1782
1783    /* Check for errors */
1784    if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
1785       _mesa_error(ctx, GL_INVALID_OPERATION,
1786                   "glGetTex%sLevelParameter[if]v("
1787                   "current unit >= max combined texture units)", suffix);
1788       return;
1789    }
1790
1791    maxLevels = _mesa_max_texture_levels(ctx, target);
1792    assert(maxLevels != 0);
1793
1794    if (level < 0 || level >= maxLevels) {
1795       _mesa_error(ctx, GL_INVALID_VALUE,
1796                   "glGetTex%sLevelParameter[if]v(level out of range)", suffix);
1797       return;
1798    }
1799
1800    /* Get the level parameter */
1801    if (target == GL_TEXTURE_BUFFER) {
1802       get_tex_level_parameter_buffer(ctx, texObj, pname, params, dsa);
1803    }
1804    else {
1805       get_tex_level_parameter_image(ctx, texObj, target,
1806                                     level, pname, params, dsa);
1807    }
1808 }
1809
1810 void GLAPIENTRY
1811 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
1812                               GLenum pname, GLfloat *params )
1813 {
1814    struct gl_texture_object *texObj;
1815    GLint iparam;
1816    GET_CURRENT_CONTEXT(ctx);
1817
1818    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1819       return;
1820
1821    texObj = _mesa_get_current_tex_object(ctx, target);
1822    if (!texObj)
1823       return;
1824
1825    get_tex_level_parameteriv(ctx, texObj, target, level,
1826                              pname, &iparam, false);
1827
1828    *params = (GLfloat) iparam;
1829 }
1830
1831 void GLAPIENTRY
1832 _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
1833                               GLenum pname, GLint *params )
1834 {
1835    struct gl_texture_object *texObj;
1836    GET_CURRENT_CONTEXT(ctx);
1837
1838    if (!valid_tex_level_parameteriv_target(ctx, target, false))
1839       return;
1840
1841    texObj = _mesa_get_current_tex_object(ctx, target);
1842    if (!texObj)
1843       return;
1844
1845    get_tex_level_parameteriv(ctx, texObj, target, level,
1846                              pname, params, false);
1847 }
1848
1849 void GLAPIENTRY
1850 _mesa_GetTextureLevelParameterfv(GLuint texture, GLint level,
1851                                  GLenum pname, GLfloat *params)
1852 {
1853    struct gl_texture_object *texObj;
1854    GLint iparam;
1855    GET_CURRENT_CONTEXT(ctx);
1856
1857    texObj = _mesa_lookup_texture_err(ctx, texture,
1858                                      "glGetTextureLevelParameterfv");
1859    if (!texObj)
1860       return;
1861
1862    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1863       return;
1864
1865    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1866                              pname, &iparam, true);
1867
1868    *params = (GLfloat) iparam;
1869 }
1870
1871 void GLAPIENTRY
1872 _mesa_GetTextureLevelParameterfvEXT(GLuint texture, GLenum target, GLint level,
1873                                     GLenum pname, GLfloat *params)
1874 {
1875    struct gl_texture_object *texObj;
1876    GLint iparam;
1877    GET_CURRENT_CONTEXT(ctx);
1878
1879    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1880                                            "glGetTextureLevelParameterfvEXT");
1881    if (!texObj)
1882       return;
1883
1884    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1885       return;
1886
1887    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1888                              pname, &iparam, true);
1889
1890    *params = (GLfloat) iparam;
1891 }
1892
1893 void GLAPIENTRY
1894 _mesa_GetTextureLevelParameteriv(GLuint texture, GLint level,
1895                                  GLenum pname, GLint *params)
1896 {
1897    struct gl_texture_object *texObj;
1898    GET_CURRENT_CONTEXT(ctx);
1899
1900    texObj = _mesa_lookup_texture_err(ctx, texture,
1901                                      "glGetTextureLevelParameteriv");
1902    if (!texObj)
1903       return;
1904
1905    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1906       return;
1907
1908    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1909                              pname, params, true);
1910 }
1911
1912 void GLAPIENTRY
1913 _mesa_GetTextureLevelParameterivEXT(GLuint texture, GLenum target, GLint level,
1914                                     GLenum pname, GLint *params)
1915 {
1916    struct gl_texture_object *texObj;
1917    GET_CURRENT_CONTEXT(ctx);
1918
1919    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
1920                                            "glGetTextureLevelParameterivEXT");
1921    if (!texObj)
1922       return;
1923
1924    if (!valid_tex_level_parameteriv_target(ctx, texObj->Target, true))
1925       return;
1926
1927    get_tex_level_parameteriv(ctx, texObj, texObj->Target, level,
1928                              pname, params, true);
1929 }
1930
1931
1932 /**
1933  * This isn't exposed to the rest of the driver because it is a part of the
1934  * OpenGL API that is rarely used.
1935  */
1936 static void
1937 get_tex_parameterfv(struct gl_context *ctx,
1938                     struct gl_texture_object *obj,
1939                     GLenum pname, GLfloat *params, bool dsa)
1940 {
1941    _mesa_lock_context_textures(ctx);
1942    switch (pname) {
1943       case GL_TEXTURE_MAG_FILTER:
1944          *params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
1945          break;
1946       case GL_TEXTURE_MIN_FILTER:
1947          *params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
1948          break;
1949       case GL_TEXTURE_WRAP_S:
1950          *params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
1951          break;
1952       case GL_TEXTURE_WRAP_T:
1953          *params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
1954          break;
1955       case GL_TEXTURE_WRAP_R:
1956          *params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
1957          break;
1958       case GL_TEXTURE_BORDER_COLOR:
1959          if (ctx->API == API_OPENGLES ||
1960              !ctx->Extensions.ARB_texture_border_clamp)
1961             goto invalid_pname;
1962
1963          if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP))
1964             _mesa_update_state_locked(ctx);
1965          if (_mesa_get_clamp_fragment_color(ctx, ctx->DrawBuffer)) {
1966             params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
1967             params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
1968             params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
1969             params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
1970          }
1971          else {
1972             params[0] = obj->Sampler.BorderColor.f[0];
1973             params[1] = obj->Sampler.BorderColor.f[1];
1974             params[2] = obj->Sampler.BorderColor.f[2];
1975             params[3] = obj->Sampler.BorderColor.f[3];
1976          }
1977          break;
1978       case GL_TEXTURE_RESIDENT:
1979          if (ctx->API != API_OPENGL_COMPAT)
1980             goto invalid_pname;
1981
1982          *params = 1.0F;
1983          break;
1984       case GL_TEXTURE_PRIORITY:
1985          if (ctx->API != API_OPENGL_COMPAT)
1986             goto invalid_pname;
1987
1988          *params = obj->Priority;
1989          break;
1990       case GL_TEXTURE_MIN_LOD:
1991          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1992             goto invalid_pname;
1993
1994          *params = obj->Sampler.MinLod;
1995          break;
1996       case GL_TEXTURE_MAX_LOD:
1997          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
1998             goto invalid_pname;
1999
2000          *params = obj->Sampler.MaxLod;
2001          break;
2002       case GL_TEXTURE_BASE_LEVEL:
2003          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2004             goto invalid_pname;
2005
2006          *params = (GLfloat) obj->BaseLevel;
2007          break;
2008       case GL_TEXTURE_MAX_LEVEL:
2009          *params = (GLfloat) obj->MaxLevel;
2010          break;
2011       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
2012          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
2013             goto invalid_pname;
2014          *params = obj->Sampler.MaxAnisotropy;
2015          break;
2016       case GL_GENERATE_MIPMAP_SGIS:
2017          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
2018             goto invalid_pname;
2019
2020          *params = (GLfloat) obj->GenerateMipmap;
2021          break;
2022       case GL_TEXTURE_COMPARE_MODE_ARB:
2023          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2024              && !_mesa_is_gles3(ctx))
2025             goto invalid_pname;
2026          *params = (GLfloat) obj->Sampler.CompareMode;
2027          break;
2028       case GL_TEXTURE_COMPARE_FUNC_ARB:
2029          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2030              && !_mesa_is_gles3(ctx))
2031             goto invalid_pname;
2032          *params = (GLfloat) obj->Sampler.CompareFunc;
2033          break;
2034       case GL_DEPTH_TEXTURE_MODE_ARB:
2035          /* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has
2036           * never existed in OpenGL ES.
2037           */
2038          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
2039             goto invalid_pname;
2040          *params = (GLfloat) obj->DepthMode;
2041          break;
2042       case GL_DEPTH_STENCIL_TEXTURE_MODE:
2043          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
2044             goto invalid_pname;
2045          *params = (GLfloat)
2046             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
2047          break;
2048       case GL_TEXTURE_LOD_BIAS:
2049          if (_mesa_is_gles(ctx))
2050             goto invalid_pname;
2051
2052          *params = obj->Sampler.LodBias;
2053          break;
2054       case GL_TEXTURE_CROP_RECT_OES:
2055          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
2056             goto invalid_pname;
2057
2058          params[0] = (GLfloat) obj->CropRect[0];
2059          params[1] = (GLfloat) obj->CropRect[1];
2060          params[2] = (GLfloat) obj->CropRect[2];
2061          params[3] = (GLfloat) obj->CropRect[3];
2062          break;
2063
2064       case GL_TEXTURE_SWIZZLE_R_EXT:
2065       case GL_TEXTURE_SWIZZLE_G_EXT:
2066       case GL_TEXTURE_SWIZZLE_B_EXT:
2067       case GL_TEXTURE_SWIZZLE_A_EXT:
2068          if ((!_mesa_is_desktop_gl(ctx)
2069               || !ctx->Extensions.EXT_texture_swizzle)
2070              && !_mesa_is_gles3(ctx))
2071             goto invalid_pname;
2072          *params = (GLfloat) obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
2073          break;
2074
2075       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
2076          if ((!_mesa_is_desktop_gl(ctx)
2077               || !ctx->Extensions.EXT_texture_swizzle)
2078              && !_mesa_is_gles3(ctx)) {
2079             goto invalid_pname;
2080          }
2081          else {
2082             GLuint comp;
2083             for (comp = 0; comp < 4; comp++) {
2084                params[comp] = (GLfloat) obj->Swizzle[comp];
2085             }
2086          }
2087          break;
2088
2089       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
2090          if (!_mesa_is_desktop_gl(ctx)
2091              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
2092             goto invalid_pname;
2093          *params = (GLfloat) obj->Sampler.CubeMapSeamless;
2094          break;
2095
2096       case GL_TEXTURE_IMMUTABLE_FORMAT:
2097          *params = (GLfloat) obj->Immutable;
2098          break;
2099
2100       case GL_TEXTURE_IMMUTABLE_LEVELS:
2101          if (_mesa_is_gles3(ctx) || _mesa_has_texture_view(ctx))
2102             *params = (GLfloat) obj->ImmutableLevels;
2103          else
2104             goto invalid_pname;
2105          break;
2106
2107       case GL_TEXTURE_VIEW_MIN_LEVEL:
2108          if (!_mesa_has_texture_view(ctx))
2109             goto invalid_pname;
2110          *params = (GLfloat) obj->MinLevel;
2111          break;
2112
2113       case GL_TEXTURE_VIEW_NUM_LEVELS:
2114          if (!_mesa_has_texture_view(ctx))
2115             goto invalid_pname;
2116          *params = (GLfloat) obj->NumLevels;
2117          break;
2118
2119       case GL_TEXTURE_VIEW_MIN_LAYER:
2120          if (!_mesa_has_texture_view(ctx))
2121             goto invalid_pname;
2122          *params = (GLfloat) obj->MinLayer;
2123          break;
2124
2125       case GL_TEXTURE_VIEW_NUM_LAYERS:
2126          if (!_mesa_has_texture_view(ctx))
2127             goto invalid_pname;
2128          *params = (GLfloat) obj->NumLayers;
2129          break;
2130
2131       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
2132          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
2133             goto invalid_pname;
2134          *params = (GLfloat) obj->RequiredTextureImageUnits;
2135          break;
2136
2137       case GL_TEXTURE_SRGB_DECODE_EXT:
2138          if (!ctx->Extensions.EXT_texture_sRGB_decode)
2139             goto invalid_pname;
2140          *params = (GLfloat) obj->Sampler.sRGBDecode;
2141          break;
2142
2143       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2144          if (!ctx->Extensions.ARB_shader_image_load_store)
2145             goto invalid_pname;
2146          *params = (GLfloat) obj->ImageFormatCompatibilityType;
2147          break;
2148
2149       case GL_TEXTURE_TARGET:
2150          if (ctx->API != API_OPENGL_CORE)
2151             goto invalid_pname;
2152          *params = ENUM_TO_FLOAT(obj->Target);
2153          break;
2154
2155       case GL_TEXTURE_TILING_EXT:
2156          if (!ctx->Extensions.EXT_memory_object)
2157             goto invalid_pname;
2158          *params = ENUM_TO_FLOAT(obj->TextureTiling);
2159          break;
2160
2161       default:
2162          goto invalid_pname;
2163    }
2164
2165    /* no error if we get here */
2166    _mesa_unlock_context_textures(ctx);
2167    return;
2168
2169 invalid_pname:
2170    _mesa_unlock_context_textures(ctx);
2171    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameterfv(pname=0x%x)",
2172                dsa ? "ture" : "", pname);
2173 }
2174
2175
2176 static void
2177 get_tex_parameteriv(struct gl_context *ctx,
2178                     struct gl_texture_object *obj,
2179                     GLenum pname, GLint *params, bool dsa)
2180 {
2181    _mesa_lock_texture(ctx, obj);
2182    switch (pname) {
2183       case GL_TEXTURE_MAG_FILTER:
2184          *params = (GLint) obj->Sampler.MagFilter;
2185          break;
2186       case GL_TEXTURE_MIN_FILTER:
2187          *params = (GLint) obj->Sampler.MinFilter;
2188          break;
2189       case GL_TEXTURE_WRAP_S:
2190          *params = (GLint) obj->Sampler.WrapS;
2191          break;
2192       case GL_TEXTURE_WRAP_T:
2193          *params = (GLint) obj->Sampler.WrapT;
2194          break;
2195       case GL_TEXTURE_WRAP_R:
2196          *params = (GLint) obj->Sampler.WrapR;
2197          break;
2198       case GL_TEXTURE_BORDER_COLOR:
2199          if (ctx->API == API_OPENGLES ||
2200              !ctx->Extensions.ARB_texture_border_clamp)
2201             goto invalid_pname;
2202
2203          {
2204             GLfloat b[4];
2205             b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
2206             b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
2207             b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
2208             b[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F);
2209             params[0] = FLOAT_TO_INT(b[0]);
2210             params[1] = FLOAT_TO_INT(b[1]);
2211             params[2] = FLOAT_TO_INT(b[2]);
2212             params[3] = FLOAT_TO_INT(b[3]);
2213          }
2214          break;
2215       case GL_TEXTURE_RESIDENT:
2216          if (ctx->API != API_OPENGL_COMPAT)
2217             goto invalid_pname;
2218
2219          *params = 1;
2220          break;
2221       case GL_TEXTURE_PRIORITY:
2222          if (ctx->API != API_OPENGL_COMPAT)
2223             goto invalid_pname;
2224
2225          *params = FLOAT_TO_INT(obj->Priority);
2226          break;
2227       case GL_TEXTURE_MIN_LOD:
2228          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2229             goto invalid_pname;
2230          /* GL spec 'Data Conversions' section specifies that floating-point
2231           * value in integer Get function is rounded to nearest integer
2232           */
2233          *params = IROUND(obj->Sampler.MinLod);
2234          break;
2235       case GL_TEXTURE_MAX_LOD:
2236          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2237             goto invalid_pname;
2238          /* GL spec 'Data Conversions' section specifies that floating-point
2239           * value in integer Get function is rounded to nearest integer
2240           */
2241          *params = IROUND(obj->Sampler.MaxLod);
2242          break;
2243       case GL_TEXTURE_BASE_LEVEL:
2244          if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx))
2245             goto invalid_pname;
2246
2247          *params = obj->BaseLevel;
2248          break;
2249       case GL_TEXTURE_MAX_LEVEL:
2250          *params = obj->MaxLevel;
2251          break;
2252       case GL_TEXTURE_MAX_ANISOTROPY_EXT:
2253          if (!ctx->Extensions.EXT_texture_filter_anisotropic)
2254             goto invalid_pname;
2255          /* GL spec 'Data Conversions' section specifies that floating-point
2256           * value in integer Get function is rounded to nearest integer
2257           */
2258          *params = IROUND(obj->Sampler.MaxAnisotropy);
2259          break;
2260       case GL_GENERATE_MIPMAP_SGIS:
2261          if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
2262             goto invalid_pname;
2263
2264          *params = (GLint) obj->GenerateMipmap;
2265          break;
2266       case GL_TEXTURE_COMPARE_MODE_ARB:
2267          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2268              && !_mesa_is_gles3(ctx))
2269             goto invalid_pname;
2270          *params = (GLint) obj->Sampler.CompareMode;
2271          break;
2272       case GL_TEXTURE_COMPARE_FUNC_ARB:
2273          if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow)
2274              && !_mesa_is_gles3(ctx))
2275             goto invalid_pname;
2276          *params = (GLint) obj->Sampler.CompareFunc;
2277          break;
2278       case GL_DEPTH_TEXTURE_MODE_ARB:
2279          if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture)
2280             goto invalid_pname;
2281          *params = (GLint) obj->DepthMode;
2282          break;
2283       case GL_DEPTH_STENCIL_TEXTURE_MODE:
2284          if (!_mesa_has_ARB_stencil_texturing(ctx) && !_mesa_is_gles31(ctx))
2285             goto invalid_pname;
2286          *params = (GLint)
2287             (obj->StencilSampling ? GL_STENCIL_INDEX : GL_DEPTH_COMPONENT);
2288          break;
2289       case GL_TEXTURE_LOD_BIAS:
2290          if (_mesa_is_gles(ctx))
2291             goto invalid_pname;
2292
2293          /* GL spec 'Data Conversions' section specifies that floating-point
2294           * value in integer Get function is rounded to nearest integer
2295           */
2296          *params = IROUND(obj->Sampler.LodBias);
2297          break;
2298       case GL_TEXTURE_CROP_RECT_OES:
2299          if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture)
2300             goto invalid_pname;
2301
2302          params[0] = obj->CropRect[0];
2303          params[1] = obj->CropRect[1];
2304          params[2] = obj->CropRect[2];
2305          params[3] = obj->CropRect[3];
2306          break;
2307       case GL_TEXTURE_SWIZZLE_R_EXT:
2308       case GL_TEXTURE_SWIZZLE_G_EXT:
2309       case GL_TEXTURE_SWIZZLE_B_EXT:
2310       case GL_TEXTURE_SWIZZLE_A_EXT:
2311          if ((!_mesa_is_desktop_gl(ctx)
2312               || !ctx->Extensions.EXT_texture_swizzle)
2313              && !_mesa_is_gles3(ctx))
2314             goto invalid_pname;
2315          *params = obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT];
2316          break;
2317
2318       case GL_TEXTURE_SWIZZLE_RGBA_EXT:
2319          if ((!_mesa_is_desktop_gl(ctx)
2320               || !ctx->Extensions.EXT_texture_swizzle)
2321              && !_mesa_is_gles3(ctx))
2322             goto invalid_pname;
2323          COPY_4V(params, obj->Swizzle);
2324          break;
2325
2326       case GL_TEXTURE_CUBE_MAP_SEAMLESS:
2327          if (!_mesa_is_desktop_gl(ctx)
2328              || !ctx->Extensions.AMD_seamless_cubemap_per_texture)
2329             goto invalid_pname;
2330          *params = (GLint) obj->Sampler.CubeMapSeamless;
2331          break;
2332
2333       case GL_TEXTURE_IMMUTABLE_FORMAT:
2334          *params = (GLint) obj->Immutable;
2335          break;
2336
2337       case GL_TEXTURE_IMMUTABLE_LEVELS:
2338          if (_mesa_is_gles3(ctx) ||
2339              (_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_texture_view))
2340             *params = obj->ImmutableLevels;
2341          else
2342             goto invalid_pname;
2343          break;
2344
2345       case GL_TEXTURE_VIEW_MIN_LEVEL:
2346          if (!ctx->Extensions.ARB_texture_view)
2347             goto invalid_pname;
2348          *params = (GLint) obj->MinLevel;
2349          break;
2350
2351       case GL_TEXTURE_VIEW_NUM_LEVELS:
2352          if (!ctx->Extensions.ARB_texture_view)
2353             goto invalid_pname;
2354          *params = (GLint) obj->NumLevels;
2355          break;
2356
2357       case GL_TEXTURE_VIEW_MIN_LAYER:
2358          if (!ctx->Extensions.ARB_texture_view)
2359             goto invalid_pname;
2360          *params = (GLint) obj->MinLayer;
2361          break;
2362
2363       case GL_TEXTURE_VIEW_NUM_LAYERS:
2364          if (!ctx->Extensions.ARB_texture_view)
2365             goto invalid_pname;
2366          *params = (GLint) obj->NumLayers;
2367          break;
2368
2369       case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES:
2370          if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external)
2371             goto invalid_pname;
2372          *params = obj->RequiredTextureImageUnits;
2373          break;
2374
2375       case GL_TEXTURE_SRGB_DECODE_EXT:
2376          if (!ctx->Extensions.EXT_texture_sRGB_decode)
2377             goto invalid_pname;
2378          *params = obj->Sampler.sRGBDecode;
2379          break;
2380
2381       case GL_IMAGE_FORMAT_COMPATIBILITY_TYPE:
2382          if (!ctx->Extensions.ARB_shader_image_load_store)
2383             goto invalid_pname;
2384          *params = obj->ImageFormatCompatibilityType;
2385          break;
2386
2387       case GL_TEXTURE_TARGET:
2388          if (ctx->API != API_OPENGL_CORE)
2389             goto invalid_pname;
2390          *params = (GLint) obj->Target;
2391          break;
2392
2393       case GL_TEXTURE_TILING_EXT:
2394          if (!ctx->Extensions.EXT_memory_object)
2395             goto invalid_pname;
2396          *params = (GLint) obj->TextureTiling;
2397          break;
2398
2399       default:
2400          goto invalid_pname;
2401    }
2402
2403    /* no error if we get here */
2404    _mesa_unlock_texture(ctx, obj);
2405    return;
2406
2407 invalid_pname:
2408    _mesa_unlock_texture(ctx, obj);
2409    _mesa_error(ctx, GL_INVALID_ENUM, "glGetTex%sParameteriv(pname=0x%x)",
2410                dsa ? "ture" : "", pname);
2411 }
2412
2413 static void
2414 get_tex_parameterIiv(struct gl_context *ctx,
2415                      struct gl_texture_object *obj,
2416                      GLenum pname, GLint *params, bool dsa)
2417 {
2418    switch (pname) {
2419    case GL_TEXTURE_BORDER_COLOR:
2420       COPY_4V(params, obj->Sampler.BorderColor.i);
2421       break;
2422    default:
2423       get_tex_parameteriv(ctx, obj, pname, params, dsa);
2424    }
2425 }
2426
2427 void GLAPIENTRY
2428 _mesa_GetTexParameterfv(GLenum target, GLenum pname, GLfloat *params)
2429 {
2430    struct gl_texture_object *obj;
2431    GET_CURRENT_CONTEXT(ctx);
2432
2433    obj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2434                                                 ctx->Texture.CurrentUnit,
2435                                                 false,
2436                                                 "glGetTexParameterfv");
2437    if (!obj)
2438       return;
2439
2440    get_tex_parameterfv(ctx, obj, pname, params, false);
2441 }
2442
2443 void GLAPIENTRY
2444 _mesa_GetTexParameteriv(GLenum target, GLenum pname, GLint *params)
2445 {
2446    struct gl_texture_object *obj;
2447    GET_CURRENT_CONTEXT(ctx);
2448
2449    obj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2450                                                 ctx->Texture.CurrentUnit,
2451                                                 false,
2452                                                 "glGetTexParameteriv");
2453    if (!obj)
2454       return;
2455
2456    get_tex_parameteriv(ctx, obj, pname, params, false);
2457 }
2458
2459 /** New in GL 3.0 */
2460 void GLAPIENTRY
2461 _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
2462 {
2463    struct gl_texture_object *texObj;
2464    GET_CURRENT_CONTEXT(ctx);
2465
2466    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2467                                                 ctx->Texture.CurrentUnit,
2468                                                 false,
2469                                                 "glGetTexParameterIiv");
2470    if (!texObj)
2471       return;
2472
2473    get_tex_parameterIiv(ctx, texObj, pname, params, false);
2474 }
2475
2476
2477 /** New in GL 3.0 */
2478 void GLAPIENTRY
2479 _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
2480 {
2481    struct gl_texture_object *texObj;
2482    GET_CURRENT_CONTEXT(ctx);
2483
2484    texObj = _mesa_get_texobj_by_target_and_texunit(ctx, target,
2485                                                 ctx->Texture.CurrentUnit,
2486                                                 false,
2487                                                 "glGetTexParameterIuiv");
2488    if (!texObj)
2489       return;
2490
2491    get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, false);
2492 }
2493
2494 void GLAPIENTRY
2495 _mesa_GetTextureParameterfvEXT(GLuint texture, GLenum target, GLenum pname, GLfloat *params)
2496 {
2497    struct gl_texture_object *texObj;
2498    GET_CURRENT_CONTEXT(ctx);
2499
2500    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2501                                            "glGetTextureParameterfvEXT");
2502    if (!texObj)
2503       return;
2504
2505    if (!is_texparameteri_target_valid(texObj->Target)) {
2506       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTextureParameterfvEXT");
2507       return;
2508    }
2509
2510    get_tex_parameterfv(ctx, texObj, pname, params, true);
2511 }
2512
2513 void GLAPIENTRY
2514 _mesa_GetTextureParameterfv(GLuint texture, GLenum pname, GLfloat *params)
2515 {
2516    struct gl_texture_object *obj;
2517    GET_CURRENT_CONTEXT(ctx);
2518
2519    obj = get_texobj_by_name(ctx, texture, "glGetTextureParameterfv");
2520    if (!obj)
2521       return;
2522
2523    get_tex_parameterfv(ctx, obj, pname, params, true);
2524 }
2525
2526 void GLAPIENTRY
2527 _mesa_GetTextureParameterivEXT(GLuint texture, GLenum target, GLenum pname, GLint *params)
2528 {
2529    struct gl_texture_object *texObj;
2530    GET_CURRENT_CONTEXT(ctx);
2531
2532    texObj = _mesa_lookup_or_create_texture(ctx, target, texture, false, true,
2533                                            "glGetTextureParameterivEXT");
2534    if (!texObj)
2535       return;
2536
2537    if (!is_texparameteri_target_valid(texObj->Target)) {
2538       _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTextureParameterivEXT");
2539       return;
2540    }
2541    get_tex_parameteriv(ctx, texObj, pname, params, true);
2542  }
2543
2544 void GLAPIENTRY
2545 _mesa_GetTextureParameteriv(GLuint texture, GLenum pname, GLint *params)
2546 {
2547    struct gl_texture_object *obj;
2548    GET_CURRENT_CONTEXT(ctx);
2549
2550    obj = get_texobj_by_name(ctx, texture, "glGetTextureParameteriv");
2551    if (!obj)
2552       return;
2553
2554    get_tex_parameteriv(ctx, obj, pname, params, true);
2555 }
2556
2557 void GLAPIENTRY
2558 _mesa_GetTextureParameterIiv(GLuint texture, GLenum pname, GLint *params)
2559 {
2560    struct gl_texture_object *texObj;
2561    GET_CURRENT_CONTEXT(ctx);
2562
2563    texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIiv");
2564    if (!texObj)
2565       return;
2566
2567    get_tex_parameterIiv(ctx, texObj, pname, params, true);
2568 }
2569
2570
2571 void GLAPIENTRY
2572 _mesa_GetTextureParameterIuiv(GLuint texture, GLenum pname, GLuint *params)
2573 {
2574    struct gl_texture_object *texObj;
2575    GET_CURRENT_CONTEXT(ctx);
2576
2577    texObj = get_texobj_by_name(ctx, texture, "glGetTextureParameterIuiv");
2578    if (!texObj)
2579       return;
2580
2581    get_tex_parameterIiv(ctx, texObj, pname, (GLint *) params, true);
2582 }