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