src/mesa/main/samplerobj.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2011  VMware, Inc.  All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  20  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24
  25 /**
  26  * \file samplerobj.c
  27  * \brief Functions for the GL_ARB_sampler_objects extension.
  28  * \author Brian Paul
  29  */
  30
  31
  32 #include "main/glheader.h"
  33 #include "main/context.h"
  34 #include "main/dispatch.h"
  35 #include "main/enums.h"
  36 #include "main/hash.h"
  37 #include "main/macros.h"
  38 #include "main/mfeatures.h"
  39 #include "main/mtypes.h"
  40 #include "main/samplerobj.h"
  41
  42
  43 static struct gl_sampler_object *
  44 _mesa_lookup_samplerobj(struct gl_context *ctx, GLuint name)
  45 {
  46    if (name == 0)
  47       return NULL;
  48    else
  49       return (struct gl_sampler_object *)
  50          _mesa_HashLookup(ctx->Shared->SamplerObjects, name);
  51 }
  52
  53
  54 /**
  55  * Handle reference counting.
  56  */
  57 void
  58 _mesa_reference_sampler_object(struct gl_context *ctx,
  59                                struct gl_sampler_object **ptr,
  60                                struct gl_sampler_object *samp)
  61 {
  62    if (*ptr == samp)
  63       return;
  64
  65    if (*ptr) {
  66       /* Unreference the old sampler */
  67       GLboolean deleteFlag = GL_FALSE;
  68       struct gl_sampler_object *oldSamp = *ptr;
  69
  70       /*_glthread_LOCK_MUTEX(oldSamp->Mutex);*/
  71       ASSERT(oldSamp->RefCount > 0);
  72       oldSamp->RefCount--;
  73 #if 0
  74       printf("SamplerObj %p %d DECR to %d\n",
  75              (void *) oldSamp, oldSamp->Name, oldSamp->RefCount);
  76 #endif
  77       deleteFlag = (oldSamp->RefCount == 0);
  78       /*_glthread_UNLOCK_MUTEX(oldSamp->Mutex);*/
  79
  80       if (deleteFlag) {
  81          ASSERT(ctx->Driver.DeleteSamplerObject);
  82          ctx->Driver.DeleteSamplerObject(ctx, oldSamp);
  83       }
  84
  85       *ptr = NULL;
  86    }
  87    ASSERT(!*ptr);
  88
  89    if (samp) {
  90       /* reference new sampler */
  91       /*_glthread_LOCK_MUTEX(samp->Mutex);*/
  92       if (samp->RefCount == 0) {
  93          /* this sampler's being deleted (look just above) */
  94          /* Not sure this can every really happen.  Warn if it does. */
  95          _mesa_problem(NULL, "referencing deleted sampler object");
  96          *ptr = NULL;
  97       }
  98       else {
  99          samp->RefCount++;
 100 #if 0
 101          printf("SamplerObj %p %d INCR to %d\n",
 102                 (void *) samp, samp->Name, samp->RefCount);
 103 #endif
 104          *ptr = samp;
 105       }
 106       /*_glthread_UNLOCK_MUTEX(samp->Mutex);*/
 107    }
 108 }
 109
 110
 111 /**
 112  * Initialize the fields of the given sampler object.
 113  */
 114 void
 115 _mesa_init_sampler_object(struct gl_sampler_object *sampObj, GLuint name)
 116 {
 117    sampObj->Name = name;
 118    sampObj->RefCount = 1;
 119    sampObj->WrapS = GL_REPEAT;
 120    sampObj->WrapT = GL_REPEAT;
 121    sampObj->WrapR = GL_REPEAT;
 122    sampObj->MinFilter = GL_NEAREST_MIPMAP_LINEAR;
 123    sampObj->MagFilter = GL_LINEAR;
 124    sampObj->BorderColor.f[0] = 0.0;
 125    sampObj->BorderColor.f[1] = 0.0;
 126    sampObj->BorderColor.f[2] = 0.0;
 127    sampObj->BorderColor.f[3] = 0.0;
 128    sampObj->MinLod = -1000.0F;
 129    sampObj->MaxLod = 1000.0F;
 130    sampObj->LodBias = 0.0F;
 131    sampObj->MaxAnisotropy = 1.0F;
 132    sampObj->CompareMode = GL_NONE;
 133    sampObj->CompareFunc = GL_LEQUAL;
 134    sampObj->CompareFailValue = 0.0;
 135    sampObj->sRGBDecode = GL_DECODE_EXT;
 136    sampObj->CubeMapSeamless = GL_FALSE;
 137    sampObj->DepthMode = 0;
 138 }
 139
 140
 141 /**
 142  * Fallback for ctx->Driver.NewSamplerObject();
 143  */
 144 struct gl_sampler_object *
 145 _mesa_new_sampler_object(struct gl_context *ctx, GLuint name)
 146 {
 147    struct gl_sampler_object *sampObj = CALLOC_STRUCT(gl_sampler_object);
 148    if (sampObj) {
 149       _mesa_init_sampler_object(sampObj, name);
 150    }
 151    return sampObj;
 152 }
 153
 154
 155 /**
 156  * Fallback for ctx->Driver.DeleteSamplerObject();
 157  */
 158 void
 159 _mesa_delete_sampler_object(struct gl_context *ctx,
 160                             struct gl_sampler_object *sampObj)
 161 {
 162    FREE(sampObj);
 163 }
 164
 165
 166 static void GLAPIENTRY
 167 _mesa_GenSamplers(GLsizei count, GLuint *samplers)
 168 {
 169    GET_CURRENT_CONTEXT(ctx);
 170    GLuint first;
 171    GLint i;
 172
 173    ASSERT_OUTSIDE_BEGIN_END(ctx);
 174
 175    if (MESA_VERBOSE & VERBOSE_API)
 176       _mesa_debug(ctx, "glGenSamplers(%d)\n", count);
 177
 178    if (count < 0) {
 179       _mesa_error(ctx, GL_INVALID_VALUE, "glGenSamplers");
 180       return;
 181    }
 182
 183    if (!samplers)
 184       return;
 185
 186    first = _mesa_HashFindFreeKeyBlock(ctx->Shared->SamplerObjects, count);
 187
 188    /* Insert the ID and pointer to new sampler object into hash table */
 189    for (i = 0; i < count; i++) {
 190       struct gl_sampler_object *sampObj =
 191          ctx->Driver.NewSamplerObject(ctx, first + i);
 192       _mesa_HashInsert(ctx->Shared->SamplerObjects, first + i, sampObj);
 193       samplers[i] = first + i;
 194    }
 195 }
 196
 197
 198 static void GLAPIENTRY
 199 _mesa_DeleteSamplers(GLsizei count, const GLuint *samplers)
 200 {
 201    GET_CURRENT_CONTEXT(ctx);
 202    GLsizei i;
 203
 204    ASSERT_OUTSIDE_BEGIN_END(ctx);
 205    FLUSH_VERTICES(ctx, 0);
 206
 207    if (count < 0) {
 208       _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteSamplers(count)");
 209       return;
 210    }
 211
 212    _glthread_LOCK_MUTEX(ctx->Shared->Mutex);
 213
 214    for (i = 0; i < count; i++) {
 215       if (samplers[i]) {
 216          struct gl_sampler_object *sampObj =
 217             _mesa_lookup_samplerobj(ctx, samplers[i]);
 218          if (sampObj) {
 219             /* The ID is immediately freed for re-use */
 220             _mesa_HashRemove(ctx->Shared->SamplerObjects, samplers[i]);
 221             /* But the object exists until its reference count goes to zero */
 222             _mesa_reference_sampler_object(ctx, &sampObj, NULL);
 223          }
 224       }
 225    }
 226
 227    _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex);
 228 }
 229
 230
 231 static GLboolean GLAPIENTRY
 232 _mesa_IsSampler(GLuint sampler)
 233 {
 234    struct gl_sampler_object *sampObj;
 235    GET_CURRENT_CONTEXT(ctx);
 236
 237    ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
 238
 239    if (sampler == 0)
 240       return GL_FALSE;
 241
 242    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 243
 244    return sampObj != NULL;
 245 }
 246
 247
 248 static void GLAPIENTRY
 249 _mesa_BindSampler(GLuint unit, GLuint sampler)
 250 {
 251    struct gl_sampler_object *sampObj;
 252    GET_CURRENT_CONTEXT(ctx);
 253
 254    if (unit >= ctx->Const.MaxCombinedTextureImageUnits) {
 255       _mesa_error(ctx, GL_INVALID_VALUE, "glBindSampler(unit %u)", unit);
 256       return;
 257    }
 258
 259    if (sampler == 0) {
 260       /* Use the default sampler object, the one contained in the texture
 261        * object.
 262        */
 263       sampObj = NULL;
 264    }
 265    else {
 266       /* user-defined sampler object */
 267       sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 268       if (!sampObj) {
 269          _mesa_error(ctx, GL_INVALID_OPERATION, "glBindSampler(sampler)");
 270          return;
 271       }
 272    }
 273
 274    if (ctx->Texture.Unit[unit].Sampler != sampObj) {
 275       FLUSH_VERTICES(ctx, _NEW_TEXTURE);
 276    }
 277
 278    /* bind new sampler */
 279    _mesa_reference_sampler_object(ctx, &ctx->Texture.Unit[unit].Sampler,
 280                                   sampObj);
 281 }
 282
 283
 284 /**
 285  * Check if a coordinate wrap mode is legal.
 286  * \return GL_TRUE if legal, GL_FALSE otherwise
 287  */
 288 static GLboolean
 289 validate_texture_wrap_mode(struct gl_context *ctx, GLenum wrap)
 290 {
 291    const struct gl_extensions * const e = &ctx->Extensions;
 292
 293    switch (wrap) {
 294    case GL_CLAMP:
 295    case GL_CLAMP_TO_EDGE:
 296    case GL_REPEAT:
 297       return GL_TRUE;
 298    case GL_CLAMP_TO_BORDER:
 299       return e->ARB_texture_border_clamp;
 300    case GL_MIRRORED_REPEAT:
 301       return e->ARB_texture_mirrored_repeat;
 302    case GL_MIRROR_CLAMP_EXT:
 303       return e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp;
 304    case GL_MIRROR_CLAMP_TO_EDGE_EXT:
 305       return e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp;
 306    case GL_MIRROR_CLAMP_TO_BORDER_EXT:
 307       return e->EXT_texture_mirror_clamp;
 308    default:
 309       return GL_FALSE;
 310    }
 311 }
 312
 313
 314 /**
 315  * This is called just prior to changing any sampler object state.
 316  */
 317 static INLINE void
 318 flush(struct gl_context *ctx)
 319 {
 320    FLUSH_VERTICES(ctx, _NEW_TEXTURE);
 321 }
 322
 323
 324 #define INVALID_PARAM 0x100
 325 #define INVALID_PNAME 0x101
 326 #define INVALID_VALUE 0x102
 327
 328 static GLuint
 329 set_sampler_wrap_s(struct gl_context *ctx, struct gl_sampler_object *samp,
 330                    GLint param)
 331 {
 332    if (samp->WrapS == param)
 333       return GL_FALSE;
 334    if (validate_texture_wrap_mode(ctx, param)) {
 335       flush(ctx);
 336       samp->WrapS = param;
 337       return GL_TRUE;
 338    }
 339    return INVALID_PARAM;
 340 }
 341
 342
 343 static GLuint
 344 set_sampler_wrap_t(struct gl_context *ctx, struct gl_sampler_object *samp,
 345                    GLint param)
 346 {
 347    if (samp->WrapT == param)
 348       return GL_FALSE;
 349    if (validate_texture_wrap_mode(ctx, param)) {
 350       flush(ctx);
 351       samp->WrapT = param;
 352       return GL_TRUE;
 353    }
 354    return INVALID_PARAM;
 355 }
 356
 357
 358 static GLuint
 359 set_sampler_wrap_r(struct gl_context *ctx, struct gl_sampler_object *samp,
 360                    GLint param)
 361 {
 362    if (samp->WrapR == param)
 363       return GL_FALSE;
 364    if (validate_texture_wrap_mode(ctx, param)) {
 365       flush(ctx);
 366       samp->WrapR = param;
 367       return GL_TRUE;
 368    }
 369    return INVALID_PARAM;
 370 }
 371
 372
 373 static GLuint
 374 set_sampler_min_filter(struct gl_context *ctx, struct gl_sampler_object *samp,
 375                        GLint param)
 376 {
 377    if (samp->MinFilter == param)
 378       return GL_FALSE;
 379
 380    switch (param) {
 381    case GL_NEAREST:
 382    case GL_LINEAR:
 383    case GL_NEAREST_MIPMAP_NEAREST:
 384    case GL_LINEAR_MIPMAP_NEAREST:
 385    case GL_NEAREST_MIPMAP_LINEAR:
 386    case GL_LINEAR_MIPMAP_LINEAR:
 387       flush(ctx);
 388       samp->MinFilter = param;
 389       return GL_TRUE;
 390    default:
 391       return INVALID_PARAM;
 392    }
 393 }
 394
 395
 396 static GLuint
 397 set_sampler_mag_filter(struct gl_context *ctx, struct gl_sampler_object *samp,
 398                        GLint param)
 399 {
 400    if (samp->MagFilter == param)
 401       return GL_FALSE;
 402
 403    switch (param) {
 404    case GL_NEAREST:
 405    case GL_LINEAR:
 406       flush(ctx);
 407       samp->MagFilter = param;
 408       return GL_TRUE;
 409    default:
 410       return INVALID_PARAM;
 411    }
 412 }
 413
 414
 415 static GLuint
 416 set_sampler_lod_bias(struct gl_context *ctx, struct gl_sampler_object *samp,
 417                      GLfloat param)
 418 {
 419    if (samp->LodBias == param)
 420       return GL_FALSE;
 421
 422    flush(ctx);
 423    samp->LodBias = param;
 424    return GL_TRUE;
 425 }
 426
 427
 428 static GLuint
 429 set_sampler_border_colorf(struct gl_context *ctx,
 430                           struct gl_sampler_object *samp,
 431                           const GLfloat params[4])
 432 {
 433    flush(ctx);
 434    samp->BorderColor.f[RCOMP] = params[0];
 435    samp->BorderColor.f[GCOMP] = params[1];
 436    samp->BorderColor.f[BCOMP] = params[2];
 437    samp->BorderColor.f[ACOMP] = params[3];
 438    return GL_TRUE;
 439 }
 440
 441
 442 static GLuint
 443 set_sampler_border_colori(struct gl_context *ctx,
 444                           struct gl_sampler_object *samp,
 445                           const GLint params[4])
 446 {
 447    flush(ctx);
 448    samp->BorderColor.i[RCOMP] = params[0];
 449    samp->BorderColor.i[GCOMP] = params[1];
 450    samp->BorderColor.i[BCOMP] = params[2];
 451    samp->BorderColor.i[ACOMP] = params[3];
 452    return GL_TRUE;
 453 }
 454
 455
 456 static GLuint
 457 set_sampler_border_colorui(struct gl_context *ctx,
 458                            struct gl_sampler_object *samp,
 459                            const GLuint params[4])
 460 {
 461    flush(ctx);
 462    samp->BorderColor.ui[RCOMP] = params[0];
 463    samp->BorderColor.ui[GCOMP] = params[1];
 464    samp->BorderColor.ui[BCOMP] = params[2];
 465    samp->BorderColor.ui[ACOMP] = params[3];
 466    return GL_TRUE;
 467 }
 468
 469
 470 static GLuint
 471 set_sampler_min_lod(struct gl_context *ctx, struct gl_sampler_object *samp,
 472                     GLfloat param)
 473 {
 474    if (samp->MinLod == param)
 475       return GL_FALSE;
 476
 477    flush(ctx);
 478    samp->MinLod = param;
 479    return GL_TRUE;
 480 }
 481
 482
 483 static GLuint
 484 set_sampler_max_lod(struct gl_context *ctx, struct gl_sampler_object *samp,
 485                     GLfloat param)
 486 {
 487    if (samp->MaxLod == param)
 488       return GL_FALSE;
 489
 490    flush(ctx);
 491    samp->MaxLod = param;
 492    return GL_TRUE;
 493 }
 494
 495
 496 static GLuint
 497 set_sampler_compare_mode(struct gl_context *ctx,
 498                          struct gl_sampler_object *samp, GLint param)
 499 {
 500    if (!ctx->Extensions.ARB_shadow)
 501       return INVALID_PNAME;
 502
 503    if (samp->CompareMode == param)
 504       return GL_FALSE;
 505
 506    if (param == GL_NONE ||
 507        param == GL_COMPARE_R_TO_TEXTURE_ARB) {
 508       flush(ctx);
 509       samp->CompareMode = param;
 510       return GL_TRUE;
 511    }
 512
 513    return INVALID_PARAM;
 514 }
 515
 516
 517 static GLuint
 518 set_sampler_compare_func(struct gl_context *ctx,
 519                          struct gl_sampler_object *samp, GLint param)
 520 {
 521    if (!ctx->Extensions.ARB_shadow)
 522       return INVALID_PNAME;
 523
 524    if (samp->CompareFunc == param)
 525       return GL_FALSE;
 526
 527    switch (param) {
 528    case GL_LEQUAL:
 529    case GL_GEQUAL:
 530       flush(ctx);
 531       samp->CompareFunc = param;
 532       return GL_TRUE;
 533    case GL_EQUAL:
 534    case GL_NOTEQUAL:
 535    case GL_LESS:
 536    case GL_GREATER:
 537    case GL_ALWAYS:
 538    case GL_NEVER:
 539       if (ctx->Extensions.EXT_shadow_funcs) {
 540          flush(ctx);
 541          samp->CompareFunc = param;
 542          return GL_TRUE;
 543       }
 544       /* fall-through */
 545    default:
 546       return INVALID_PARAM;
 547    }
 548 }
 549
 550
 551 static GLuint
 552 set_sampler_max_anisotropy(struct gl_context *ctx,
 553                            struct gl_sampler_object *samp, GLfloat param)
 554 {
 555    if (!ctx->Extensions.EXT_texture_filter_anisotropic)
 556       return INVALID_PNAME;
 557
 558    if (samp->MaxAnisotropy == param)
 559       return GL_FALSE;
 560
 561    if (param < 1.0)
 562       return INVALID_VALUE;
 563
 564    flush(ctx);
 565    /* clamp to max, that's what NVIDIA does */
 566    samp->MaxAnisotropy = MIN2(param, ctx->Const.MaxTextureMaxAnisotropy);
 567    return GL_TRUE;
 568 }
 569
 570
 571 static GLuint
 572 set_sampler_cube_map_seamless(struct gl_context *ctx,
 573                               struct gl_sampler_object *samp, GLboolean param)
 574 {
 575    if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
 576       return INVALID_PNAME;
 577
 578    if (samp->CubeMapSeamless == param)
 579       return GL_FALSE;
 580
 581    if (param != GL_TRUE && param != GL_FALSE)
 582       return INVALID_VALUE;
 583
 584    flush(ctx);
 585    samp->CubeMapSeamless = param;
 586    return GL_TRUE;
 587 }
 588
 589
 590 static void GLAPIENTRY
 591 _mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param)
 592 {
 593    struct gl_sampler_object *sampObj;
 594    GLuint res;
 595    GET_CURRENT_CONTEXT(ctx);
 596
 597    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 598    if (!sampObj) {
 599       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteri(sampler %u)",
 600                   sampler);
 601       return;
 602    }
 603
 604    switch (pname) {
 605    case GL_TEXTURE_WRAP_S:
 606       res = set_sampler_wrap_s(ctx, sampObj, param);
 607       break;
 608    case GL_TEXTURE_WRAP_T:
 609       res = set_sampler_wrap_t(ctx, sampObj, param);
 610       break;
 611    case GL_TEXTURE_WRAP_R:
 612       res = set_sampler_wrap_r(ctx, sampObj, param);
 613       break;
 614    case GL_TEXTURE_MIN_FILTER:
 615       res = set_sampler_min_filter(ctx, sampObj, param);
 616       break;
 617    case GL_TEXTURE_MAG_FILTER:
 618       res = set_sampler_mag_filter(ctx, sampObj, param);
 619       break;
 620    case GL_TEXTURE_MIN_LOD:
 621       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) param);
 622       break;
 623    case GL_TEXTURE_MAX_LOD:
 624       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) param);
 625       break;
 626    case GL_TEXTURE_LOD_BIAS:
 627       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) param);
 628       break;
 629    case GL_TEXTURE_COMPARE_MODE:
 630       res = set_sampler_compare_mode(ctx, sampObj, param);
 631       break;
 632    case GL_TEXTURE_COMPARE_FUNC:
 633       res = set_sampler_compare_func(ctx, sampObj, param);
 634       break;
 635    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 636       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) param);
 637       break;
 638    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 639       res = set_sampler_cube_map_seamless(ctx, sampObj, param);
 640       break;
 641    case GL_TEXTURE_BORDER_COLOR:
 642       /* fall-through */
 643    default:
 644       res = INVALID_PNAME;
 645    }
 646
 647    switch (res) {
 648    case GL_FALSE:
 649       /* no change */
 650       break;
 651    case GL_TRUE:
 652       /* state change - we do nothing special at this time */
 653       break;
 654    case INVALID_PNAME:
 655       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteri(pname=%s)\n",
 656                   _mesa_lookup_enum_by_nr(pname));
 657       break;
 658    case INVALID_PARAM:
 659       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteri(param=%d)\n",
 660                   param);
 661       break;
 662    case INVALID_VALUE:
 663       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteri(param=%d)\n",
 664                   param);
 665       break;
 666    default:
 667       ;
 668    }
 669 }
 670
 671
 672 static void GLAPIENTRY
 673 _mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param)
 674 {
 675    struct gl_sampler_object *sampObj;
 676    GLuint res;
 677    GET_CURRENT_CONTEXT(ctx);
 678
 679    ASSERT_OUTSIDE_BEGIN_END(ctx);
 680
 681    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 682    if (!sampObj) {
 683       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterf(sampler %u)",
 684                   sampler);
 685       return;
 686    }
 687
 688    switch (pname) {
 689    case GL_TEXTURE_WRAP_S:
 690       res = set_sampler_wrap_s(ctx, sampObj, (GLint) param);
 691       break;
 692    case GL_TEXTURE_WRAP_T:
 693       res = set_sampler_wrap_t(ctx, sampObj, (GLint) param);
 694       break;
 695    case GL_TEXTURE_WRAP_R:
 696       res = set_sampler_wrap_r(ctx, sampObj, (GLint) param);
 697       break;
 698    case GL_TEXTURE_MIN_FILTER:
 699       res = set_sampler_min_filter(ctx, sampObj, (GLint) param);
 700       break;
 701    case GL_TEXTURE_MAG_FILTER:
 702       res = set_sampler_mag_filter(ctx, sampObj, (GLint) param);
 703       break;
 704    case GL_TEXTURE_MIN_LOD:
 705       res = set_sampler_min_lod(ctx, sampObj, param);
 706       break;
 707    case GL_TEXTURE_MAX_LOD:
 708       res = set_sampler_max_lod(ctx, sampObj, param);
 709       break;
 710    case GL_TEXTURE_LOD_BIAS:
 711       res = set_sampler_lod_bias(ctx, sampObj, param);
 712       break;
 713    case GL_TEXTURE_COMPARE_MODE:
 714       res = set_sampler_compare_mode(ctx, sampObj, (GLint) param);
 715       break;
 716    case GL_TEXTURE_COMPARE_FUNC:
 717       res = set_sampler_compare_func(ctx, sampObj, (GLint) param);
 718       break;
 719    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 720       res = set_sampler_max_anisotropy(ctx, sampObj, param);
 721       break;
 722    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 723       res = set_sampler_cube_map_seamless(ctx, sampObj, (GLboolean) param);
 724       break;
 725    case GL_TEXTURE_BORDER_COLOR:
 726       /* fall-through */
 727    default:
 728       res = INVALID_PNAME;
 729    }
 730
 731    switch (res) {
 732    case GL_FALSE:
 733       /* no change */
 734       break;
 735    case GL_TRUE:
 736       /* state change - we do nothing special at this time */
 737       break;
 738    case INVALID_PNAME:
 739       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterf(pname=%s)\n",
 740                   _mesa_lookup_enum_by_nr(pname));
 741       break;
 742    case INVALID_PARAM:
 743       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterf(param=%f)\n",
 744                   param);
 745       break;
 746    case INVALID_VALUE:
 747       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterf(param=%f)\n",
 748                   param);
 749       break;
 750    default:
 751       ;
 752    }
 753 }
 754
 755 static void GLAPIENTRY
 756 _mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params)
 757 {
 758    struct gl_sampler_object *sampObj;
 759    GLuint res;
 760    GET_CURRENT_CONTEXT(ctx);
 761
 762    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 763    if (!sampObj) {
 764       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteriv(sampler %u)",
 765                   sampler);
 766       return;
 767    }
 768
 769    switch (pname) {
 770    case GL_TEXTURE_WRAP_S:
 771       res = set_sampler_wrap_s(ctx, sampObj, params[0]);
 772       break;
 773    case GL_TEXTURE_WRAP_T:
 774       res = set_sampler_wrap_t(ctx, sampObj, params[0]);
 775       break;
 776    case GL_TEXTURE_WRAP_R:
 777       res = set_sampler_wrap_r(ctx, sampObj, params[0]);
 778       break;
 779    case GL_TEXTURE_MIN_FILTER:
 780       res = set_sampler_min_filter(ctx, sampObj, params[0]);
 781       break;
 782    case GL_TEXTURE_MAG_FILTER:
 783       res = set_sampler_mag_filter(ctx, sampObj, params[0]);
 784       break;
 785    case GL_TEXTURE_MIN_LOD:
 786       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
 787       break;
 788    case GL_TEXTURE_MAX_LOD:
 789       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
 790       break;
 791    case GL_TEXTURE_LOD_BIAS:
 792       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
 793       break;
 794    case GL_TEXTURE_COMPARE_MODE:
 795       res = set_sampler_compare_mode(ctx, sampObj, params[0]);
 796       break;
 797    case GL_TEXTURE_COMPARE_FUNC:
 798       res = set_sampler_compare_func(ctx, sampObj, params[0]);
 799       break;
 800    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 801       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
 802       break;
 803    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 804       res = set_sampler_cube_map_seamless(ctx, sampObj, params[0]);
 805       break;
 806    case GL_TEXTURE_BORDER_COLOR:
 807       {
 808          GLfloat c[4];
 809          c[0] = INT_TO_FLOAT(params[0]);
 810          c[1] = INT_TO_FLOAT(params[1]);
 811          c[2] = INT_TO_FLOAT(params[2]);
 812          c[3] = INT_TO_FLOAT(params[3]);
 813          res = set_sampler_border_colorf(ctx, sampObj, c);
 814       }
 815       break;
 816    default:
 817       res = INVALID_PNAME;
 818    }
 819
 820    switch (res) {
 821    case GL_FALSE:
 822       /* no change */
 823       break;
 824    case GL_TRUE:
 825       /* state change - we do nothing special at this time */
 826       break;
 827    case INVALID_PNAME:
 828       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteriv(pname=%s)\n",
 829                   _mesa_lookup_enum_by_nr(pname));
 830       break;
 831    case INVALID_PARAM:
 832       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteriv(param=%d)\n",
 833                   params[0]);
 834       break;
 835    case INVALID_VALUE:
 836       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteriv(param=%d)\n",
 837                   params[0]);
 838       break;
 839    default:
 840       ;
 841    }
 842 }
 843
 844 static void GLAPIENTRY
 845 _mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params)
 846 {
 847    struct gl_sampler_object *sampObj;
 848    GLuint res;
 849    GET_CURRENT_CONTEXT(ctx);
 850
 851    ASSERT_OUTSIDE_BEGIN_END(ctx);
 852
 853    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 854    if (!sampObj) {
 855       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterfv(sampler %u)",
 856                   sampler);
 857       return;
 858    }
 859
 860    switch (pname) {
 861    case GL_TEXTURE_WRAP_S:
 862       res = set_sampler_wrap_s(ctx, sampObj, (GLint) params[0]);
 863       break;
 864    case GL_TEXTURE_WRAP_T:
 865       res = set_sampler_wrap_t(ctx, sampObj, (GLint) params[0]);
 866       break;
 867    case GL_TEXTURE_WRAP_R:
 868       res = set_sampler_wrap_r(ctx, sampObj, (GLint) params[0]);
 869       break;
 870    case GL_TEXTURE_MIN_FILTER:
 871       res = set_sampler_min_filter(ctx, sampObj, (GLint) params[0]);
 872       break;
 873    case GL_TEXTURE_MAG_FILTER:
 874       res = set_sampler_mag_filter(ctx, sampObj, (GLint) params[0]);
 875       break;
 876    case GL_TEXTURE_MIN_LOD:
 877       res = set_sampler_min_lod(ctx, sampObj, params[0]);
 878       break;
 879    case GL_TEXTURE_MAX_LOD:
 880       res = set_sampler_max_lod(ctx, sampObj, params[0]);
 881       break;
 882    case GL_TEXTURE_LOD_BIAS:
 883       res = set_sampler_lod_bias(ctx, sampObj, params[0]);
 884       break;
 885    case GL_TEXTURE_COMPARE_MODE:
 886       res = set_sampler_compare_mode(ctx, sampObj, (GLint) params[0]);
 887       break;
 888    case GL_TEXTURE_COMPARE_FUNC:
 889       res = set_sampler_compare_func(ctx, sampObj, (GLint) params[0]);
 890       break;
 891    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 892       res = set_sampler_max_anisotropy(ctx, sampObj, params[0]);
 893       break;
 894    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 895       res = set_sampler_cube_map_seamless(ctx, sampObj, (GLboolean) params[0]);
 896       break;
 897    case GL_TEXTURE_BORDER_COLOR:
 898       res = set_sampler_border_colorf(ctx, sampObj, params);
 899       break;
 900    default:
 901       res = INVALID_PNAME;
 902    }
 903
 904    switch (res) {
 905    case GL_FALSE:
 906       /* no change */
 907       break;
 908    case GL_TRUE:
 909       /* state change - we do nothing special at this time */
 910       break;
 911    case INVALID_PNAME:
 912       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterfv(pname=%s)\n",
 913                   _mesa_lookup_enum_by_nr(pname));
 914       break;
 915    case INVALID_PARAM:
 916       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterfv(param=%f)\n",
 917                   params[0]);
 918       break;
 919    case INVALID_VALUE:
 920       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterfv(param=%f)\n",
 921                   params[0]);
 922       break;
 923    default:
 924       ;
 925    }
 926 }
 927
 928 static void GLAPIENTRY
 929 _mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params)
 930 {
 931    struct gl_sampler_object *sampObj;
 932    GLuint res;
 933    GET_CURRENT_CONTEXT(ctx);
 934
 935    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 936    if (!sampObj) {
 937       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIiv(sampler %u)",
 938                   sampler);
 939       return;
 940    }
 941
 942    switch (pname) {
 943    case GL_TEXTURE_WRAP_S:
 944       res = set_sampler_wrap_s(ctx, sampObj, params[0]);
 945       break;
 946    case GL_TEXTURE_WRAP_T:
 947       res = set_sampler_wrap_t(ctx, sampObj, params[0]);
 948       break;
 949    case GL_TEXTURE_WRAP_R:
 950       res = set_sampler_wrap_r(ctx, sampObj, params[0]);
 951       break;
 952    case GL_TEXTURE_MIN_FILTER:
 953       res = set_sampler_min_filter(ctx, sampObj, params[0]);
 954       break;
 955    case GL_TEXTURE_MAG_FILTER:
 956       res = set_sampler_mag_filter(ctx, sampObj, params[0]);
 957       break;
 958    case GL_TEXTURE_MIN_LOD:
 959       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
 960       break;
 961    case GL_TEXTURE_MAX_LOD:
 962       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
 963       break;
 964    case GL_TEXTURE_LOD_BIAS:
 965       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
 966       break;
 967    case GL_TEXTURE_COMPARE_MODE:
 968       res = set_sampler_compare_mode(ctx, sampObj, params[0]);
 969       break;
 970    case GL_TEXTURE_COMPARE_FUNC:
 971       res = set_sampler_compare_func(ctx, sampObj, params[0]);
 972       break;
 973    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 974       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
 975       break;
 976    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
 977       res = set_sampler_cube_map_seamless(ctx, sampObj, params[0]);
 978       break;
 979    case GL_TEXTURE_BORDER_COLOR:
 980       res = set_sampler_border_colori(ctx, sampObj, params);
 981       break;
 982    default:
 983       res = INVALID_PNAME;
 984    }
 985
 986    switch (res) {
 987    case GL_FALSE:
 988       /* no change */
 989       break;
 990    case GL_TRUE:
 991       /* state change - we do nothing special at this time */
 992       break;
 993    case INVALID_PNAME:
 994       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIiv(pname=%s)\n",
 995                   _mesa_lookup_enum_by_nr(pname));
 996       break;
 997    case INVALID_PARAM:
 998       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIiv(param=%d)\n",
 999                   params[0]);
1000       break;
1001    case INVALID_VALUE:
1002       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIiv(param=%d)\n",
1003                   params[0]);
1004       break;
1005    default:
1006       ;
1007    }
1008 }
1009
1010
1011 static void GLAPIENTRY
1012 _mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params)
1013 {
1014    struct gl_sampler_object *sampObj;
1015    GLuint res;
1016    GET_CURRENT_CONTEXT(ctx);
1017
1018    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1019    if (!sampObj) {
1020       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIuiv(sampler %u)",
1021                   sampler);
1022       return;
1023    }
1024
1025    switch (pname) {
1026    case GL_TEXTURE_WRAP_S:
1027       res = set_sampler_wrap_s(ctx, sampObj, params[0]);
1028       break;
1029    case GL_TEXTURE_WRAP_T:
1030       res = set_sampler_wrap_t(ctx, sampObj, params[0]);
1031       break;
1032    case GL_TEXTURE_WRAP_R:
1033       res = set_sampler_wrap_r(ctx, sampObj, params[0]);
1034       break;
1035    case GL_TEXTURE_MIN_FILTER:
1036       res = set_sampler_min_filter(ctx, sampObj, params[0]);
1037       break;
1038    case GL_TEXTURE_MAG_FILTER:
1039       res = set_sampler_mag_filter(ctx, sampObj, params[0]);
1040       break;
1041    case GL_TEXTURE_MIN_LOD:
1042       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
1043       break;
1044    case GL_TEXTURE_MAX_LOD:
1045       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
1046       break;
1047    case GL_TEXTURE_LOD_BIAS:
1048       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
1049       break;
1050    case GL_TEXTURE_COMPARE_MODE:
1051       res = set_sampler_compare_mode(ctx, sampObj, params[0]);
1052       break;
1053    case GL_TEXTURE_COMPARE_FUNC:
1054       res = set_sampler_compare_func(ctx, sampObj, params[0]);
1055       break;
1056    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1057       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
1058       break;
1059    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1060       res = set_sampler_cube_map_seamless(ctx, sampObj, params[0]);
1061       break;
1062    case GL_TEXTURE_BORDER_COLOR:
1063       res = set_sampler_border_colorui(ctx, sampObj, params);
1064       break;
1065    default:
1066       res = INVALID_PNAME;
1067    }
1068
1069    switch (res) {
1070    case GL_FALSE:
1071       /* no change */
1072       break;
1073    case GL_TRUE:
1074       /* state change - we do nothing special at this time */
1075       break;
1076    case INVALID_PNAME:
1077       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIuiv(pname=%s)\n",
1078                   _mesa_lookup_enum_by_nr(pname));
1079       break;
1080    case INVALID_PARAM:
1081       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIuiv(param=%u)\n",
1082                   params[0]);
1083       break;
1084    case INVALID_VALUE:
1085       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIuiv(param=%u)\n",
1086                   params[0]);
1087       break;
1088    default:
1089       ;
1090    }
1091 }
1092
1093
1094 static void GLAPIENTRY
1095 _mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params)
1096 {
1097    struct gl_sampler_object *sampObj;
1098    GET_CURRENT_CONTEXT(ctx);
1099
1100    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1101    if (!sampObj) {
1102       _mesa_error(ctx, GL_INVALID_VALUE, "glGetSamplerParameteriv(sampler %u)",
1103                   sampler);
1104       return;
1105    }
1106
1107    switch (pname) {
1108    case GL_TEXTURE_WRAP_S:
1109       *params = sampObj->WrapS;
1110       break;
1111    case GL_TEXTURE_WRAP_T:
1112       *params = sampObj->WrapT;
1113       break;
1114    case GL_TEXTURE_WRAP_R:
1115       *params = sampObj->WrapR;
1116       break;
1117    case GL_TEXTURE_MIN_FILTER:
1118       *params = sampObj->MinFilter;
1119       break;
1120    case GL_TEXTURE_MAG_FILTER:
1121       *params = sampObj->MagFilter;
1122       break;
1123    case GL_TEXTURE_MIN_LOD:
1124       *params = (GLint) sampObj->MinLod;
1125       break;
1126    case GL_TEXTURE_MAX_LOD:
1127       *params = (GLint) sampObj->MaxLod;
1128       break;
1129    case GL_TEXTURE_LOD_BIAS:
1130       *params = (GLint) sampObj->LodBias;
1131       break;
1132    case GL_TEXTURE_COMPARE_MODE:
1133       if (!ctx->Extensions.ARB_shadow)
1134          goto invalid_pname;
1135       *params = sampObj->CompareMode;
1136       break;
1137    case GL_TEXTURE_COMPARE_FUNC:
1138       if (!ctx->Extensions.ARB_shadow)
1139          goto invalid_pname;
1140       *params = sampObj->CompareFunc;
1141       break;
1142    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1143       *params = (GLint) sampObj->MaxAnisotropy;
1144       break;
1145    case GL_TEXTURE_BORDER_COLOR:
1146       params[0] = FLOAT_TO_INT(sampObj->BorderColor.f[0]);
1147       params[1] = FLOAT_TO_INT(sampObj->BorderColor.f[1]);
1148       params[2] = FLOAT_TO_INT(sampObj->BorderColor.f[2]);
1149       params[3] = FLOAT_TO_INT(sampObj->BorderColor.f[3]);
1150       break;
1151    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1152       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1153          goto invalid_pname;
1154       *params = sampObj->CubeMapSeamless;
1155       break;
1156    default:
1157       goto invalid_pname;
1158    }
1159    return;
1160
1161 invalid_pname:
1162    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameteriv(pname=%s)",
1163                _mesa_lookup_enum_by_nr(pname));
1164 }
1165
1166
1167 static void GLAPIENTRY
1168 _mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params)
1169 {
1170    struct gl_sampler_object *sampObj;
1171    GET_CURRENT_CONTEXT(ctx);
1172
1173    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1174    if (!sampObj) {
1175       _mesa_error(ctx, GL_INVALID_VALUE, "glGetSamplerParameterfv(sampler %u)",
1176                   sampler);
1177       return;
1178    }
1179
1180    switch (pname) {
1181    case GL_TEXTURE_WRAP_S:
1182       *params = (GLfloat) sampObj->WrapS;
1183       break;
1184    case GL_TEXTURE_WRAP_T:
1185       *params = (GLfloat) sampObj->WrapT;
1186       break;
1187    case GL_TEXTURE_WRAP_R:
1188       *params = (GLfloat) sampObj->WrapR;
1189       break;
1190    case GL_TEXTURE_MIN_FILTER:
1191       *params = (GLfloat) sampObj->MinFilter;
1192       break;
1193    case GL_TEXTURE_MAG_FILTER:
1194       *params = (GLfloat) sampObj->MagFilter;
1195       break;
1196    case GL_TEXTURE_MIN_LOD:
1197       *params = sampObj->MinLod;
1198       break;
1199    case GL_TEXTURE_MAX_LOD:
1200       *params = sampObj->MaxLod;
1201       break;
1202    case GL_TEXTURE_LOD_BIAS:
1203       *params = sampObj->LodBias;
1204       break;
1205    case GL_TEXTURE_COMPARE_MODE:
1206       if (!ctx->Extensions.ARB_shadow)
1207          goto invalid_pname;
1208       *params = (GLfloat) sampObj->CompareMode;
1209       break;
1210    case GL_TEXTURE_COMPARE_FUNC:
1211       if (!ctx->Extensions.ARB_shadow)
1212          goto invalid_pname;
1213       *params = (GLfloat) sampObj->CompareFunc;
1214       break;
1215    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1216       *params = sampObj->MaxAnisotropy;
1217       break;
1218    case GL_TEXTURE_BORDER_COLOR:
1219       params[0] = sampObj->BorderColor.f[0];
1220       params[1] = sampObj->BorderColor.f[1];
1221       params[2] = sampObj->BorderColor.f[2];
1222       params[3] = sampObj->BorderColor.f[3];
1223       break;
1224    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1225       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1226          goto invalid_pname;
1227       *params = (GLfloat) sampObj->CubeMapSeamless;
1228       break;
1229    default:
1230       goto invalid_pname;
1231    }
1232    return;
1233
1234 invalid_pname:
1235    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterfv(pname=%s)",
1236                _mesa_lookup_enum_by_nr(pname));
1237 }
1238
1239
1240 static void GLAPIENTRY
1241 _mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params)
1242 {
1243    struct gl_sampler_object *sampObj;
1244    GET_CURRENT_CONTEXT(ctx);
1245
1246    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1247    if (!sampObj) {
1248       _mesa_error(ctx, GL_INVALID_VALUE,
1249                   "glGetSamplerParameterIiv(sampler %u)",
1250                   sampler);
1251       return;
1252    }
1253
1254    switch (pname) {
1255    case GL_TEXTURE_WRAP_S:
1256       *params = sampObj->WrapS;
1257       break;
1258    case GL_TEXTURE_WRAP_T:
1259       *params = sampObj->WrapT;
1260       break;
1261    case GL_TEXTURE_WRAP_R:
1262       *params = sampObj->WrapR;
1263       break;
1264    case GL_TEXTURE_MIN_FILTER:
1265       *params = sampObj->MinFilter;
1266       break;
1267    case GL_TEXTURE_MAG_FILTER:
1268       *params = sampObj->MagFilter;
1269       break;
1270    case GL_TEXTURE_MIN_LOD:
1271       *params = (GLint) sampObj->MinLod;
1272       break;
1273    case GL_TEXTURE_MAX_LOD:
1274       *params = (GLint) sampObj->MaxLod;
1275       break;
1276    case GL_TEXTURE_LOD_BIAS:
1277       *params = (GLint) sampObj->LodBias;
1278       break;
1279    case GL_TEXTURE_COMPARE_MODE:
1280       if (!ctx->Extensions.ARB_shadow)
1281          goto invalid_pname;
1282       *params = sampObj->CompareMode;
1283       break;
1284    case GL_TEXTURE_COMPARE_FUNC:
1285       if (!ctx->Extensions.ARB_shadow)
1286          goto invalid_pname;
1287       *params = sampObj->CompareFunc;
1288       break;
1289    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1290       *params = (GLint) sampObj->MaxAnisotropy;
1291       break;
1292    case GL_TEXTURE_BORDER_COLOR:
1293       params[0] = sampObj->BorderColor.i[0];
1294       params[1] = sampObj->BorderColor.i[1];
1295       params[2] = sampObj->BorderColor.i[2];
1296       params[3] = sampObj->BorderColor.i[3];
1297       break;
1298    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1299       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1300          goto invalid_pname;
1301       *params = sampObj->CubeMapSeamless;
1302       break;
1303    default:
1304       goto invalid_pname;
1305    }
1306    return;
1307
1308 invalid_pname:
1309    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterIiv(pname=%s)",
1310                _mesa_lookup_enum_by_nr(pname));
1311 }
1312
1313
1314 static void GLAPIENTRY
1315 _mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params)
1316 {
1317    struct gl_sampler_object *sampObj;
1318    GET_CURRENT_CONTEXT(ctx);
1319
1320    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1321    if (!sampObj) {
1322       _mesa_error(ctx, GL_INVALID_VALUE,
1323                   "glGetSamplerParameterIuiv(sampler %u)",
1324                   sampler);
1325       return;
1326    }
1327
1328    switch (pname) {
1329    case GL_TEXTURE_WRAP_S:
1330       *params = sampObj->WrapS;
1331       break;
1332    case GL_TEXTURE_WRAP_T:
1333       *params = sampObj->WrapT;
1334       break;
1335    case GL_TEXTURE_WRAP_R:
1336       *params = sampObj->WrapR;
1337       break;
1338    case GL_TEXTURE_MIN_FILTER:
1339       *params = sampObj->MinFilter;
1340       break;
1341    case GL_TEXTURE_MAG_FILTER:
1342       *params = sampObj->MagFilter;
1343       break;
1344    case GL_TEXTURE_MIN_LOD:
1345       *params = (GLuint) sampObj->MinLod;
1346       break;
1347    case GL_TEXTURE_MAX_LOD:
1348       *params = (GLuint) sampObj->MaxLod;
1349       break;
1350    case GL_TEXTURE_LOD_BIAS:
1351       *params = (GLuint) sampObj->LodBias;
1352       break;
1353    case GL_TEXTURE_COMPARE_MODE:
1354       if (!ctx->Extensions.ARB_shadow)
1355          goto invalid_pname;
1356       *params = sampObj->CompareMode;
1357       break;
1358    case GL_TEXTURE_COMPARE_FUNC:
1359       if (!ctx->Extensions.ARB_shadow)
1360          goto invalid_pname;
1361       *params = sampObj->CompareFunc;
1362       break;
1363    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1364       *params = (GLuint) sampObj->MaxAnisotropy;
1365       break;
1366    case GL_TEXTURE_BORDER_COLOR:
1367       params[0] = sampObj->BorderColor.ui[0];
1368       params[1] = sampObj->BorderColor.ui[1];
1369       params[2] = sampObj->BorderColor.ui[2];
1370       params[3] = sampObj->BorderColor.ui[3];
1371       break;
1372    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1373       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1374          goto invalid_pname;
1375       *params = sampObj->CubeMapSeamless;
1376       break;
1377    default:
1378       goto invalid_pname;
1379    }
1380    return;
1381
1382 invalid_pname:
1383    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterIuiv(pname=%s)",
1384                _mesa_lookup_enum_by_nr(pname));
1385 }
1386
1387
1388 void
1389 _mesa_init_sampler_object_functions(struct dd_function_table *driver)
1390 {
1391    driver->NewSamplerObject = _mesa_new_sampler_object;
1392    driver->DeleteSamplerObject = _mesa_delete_sampler_object;
1393 }
1394
1395
1396 void
1397 _mesa_init_sampler_object_dispatch(struct _glapi_table *disp)
1398 {
1399    SET_GenSamplers(disp, _mesa_GenSamplers);
1400    SET_DeleteSamplers(disp, _mesa_DeleteSamplers);
1401    SET_IsSampler(disp, _mesa_IsSampler);
1402    SET_BindSampler(disp, _mesa_BindSampler);
1403    SET_SamplerParameteri(disp, _mesa_SamplerParameteri);
1404    SET_SamplerParameterf(disp, _mesa_SamplerParameterf);
1405    SET_SamplerParameteriv(disp, _mesa_SamplerParameteriv);
1406    SET_SamplerParameterfv(disp, _mesa_SamplerParameterfv);
1407    SET_SamplerParameterIiv(disp, _mesa_SamplerParameterIiv);
1408    SET_SamplerParameterIuiv(disp, _mesa_SamplerParameterIuiv);
1409    SET_GetSamplerParameteriv(disp, _mesa_GetSamplerParameteriv);
1410    SET_GetSamplerParameterfv(disp, _mesa_GetSamplerParameterfv);
1411    SET_GetSamplerParameterIiv(disp, _mesa_GetSamplerParameterIiv);
1412    SET_GetSamplerParameterIuiv(disp, _mesa_GetSamplerParameterIuiv);
1413 }