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->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.MaxTextureImageUnits) {
 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 void GLAPIENTRY
 572 _mesa_SamplerParameteri(GLuint sampler, GLenum pname, GLint param)
 573 {
 574    struct gl_sampler_object *sampObj;
 575    GLuint res;
 576    GET_CURRENT_CONTEXT(ctx);
 577
 578    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 579    if (!sampObj) {
 580       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteri(sampler %u)",
 581                   sampler);
 582       return;
 583    }
 584
 585    switch (pname) {
 586    case GL_TEXTURE_WRAP_S:
 587       res = set_sampler_wrap_s(ctx, sampObj, param);
 588       break;
 589    case GL_TEXTURE_WRAP_T:
 590       res = set_sampler_wrap_t(ctx, sampObj, param);
 591       break;
 592    case GL_TEXTURE_WRAP_R:
 593       res = set_sampler_wrap_r(ctx, sampObj, param);
 594       break;
 595    case GL_TEXTURE_MIN_FILTER:
 596       res = set_sampler_min_filter(ctx, sampObj, param);
 597       break;
 598    case GL_TEXTURE_MAG_FILTER:
 599       res = set_sampler_mag_filter(ctx, sampObj, param);
 600       break;
 601    case GL_TEXTURE_MIN_LOD:
 602       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) param);
 603       break;
 604    case GL_TEXTURE_MAX_LOD:
 605       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) param);
 606       break;
 607    case GL_TEXTURE_LOD_BIAS:
 608       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) param);
 609       break;
 610    case GL_TEXTURE_COMPARE_MODE:
 611       res = set_sampler_compare_mode(ctx, sampObj, param);
 612       break;
 613    case GL_TEXTURE_COMPARE_FUNC:
 614       res = set_sampler_compare_func(ctx, sampObj, param);
 615       break;
 616    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 617       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) param);
 618       break;
 619    case GL_TEXTURE_BORDER_COLOR:
 620       /* fall-through */
 621    default:
 622       res = INVALID_PNAME;
 623    }
 624
 625    switch (res) {
 626    case GL_FALSE:
 627       /* no change */
 628       break;
 629    case GL_TRUE:
 630       /* state change - we do nothing special at this time */
 631       break;
 632    case INVALID_PNAME:
 633       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteri(pname=%s)\n",
 634                   _mesa_lookup_enum_by_nr(pname));
 635       break;
 636    case INVALID_PARAM:
 637       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteri(param=%d)\n",
 638                   param);
 639       break;
 640    case INVALID_VALUE:
 641       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteri(param=%d)\n",
 642                   param);
 643       break;
 644    default:
 645       ;
 646    }
 647 }
 648
 649
 650 static void GLAPIENTRY
 651 _mesa_SamplerParameterf(GLuint sampler, GLenum pname, GLfloat param)
 652 {
 653    struct gl_sampler_object *sampObj;
 654    GLuint res;
 655    GET_CURRENT_CONTEXT(ctx);
 656
 657    ASSERT_OUTSIDE_BEGIN_END(ctx);
 658
 659    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 660    if (!sampObj) {
 661       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterf(sampler %u)",
 662                   sampler);
 663       return;
 664    }
 665
 666    switch (pname) {
 667    case GL_TEXTURE_WRAP_S:
 668       res = set_sampler_wrap_s(ctx, sampObj, (GLint) param);
 669       break;
 670    case GL_TEXTURE_WRAP_T:
 671       res = set_sampler_wrap_t(ctx, sampObj, (GLint) param);
 672       break;
 673    case GL_TEXTURE_WRAP_R:
 674       res = set_sampler_wrap_r(ctx, sampObj, (GLint) param);
 675       break;
 676    case GL_TEXTURE_MIN_FILTER:
 677       res = set_sampler_min_filter(ctx, sampObj, (GLint) param);
 678       break;
 679    case GL_TEXTURE_MAG_FILTER:
 680       res = set_sampler_mag_filter(ctx, sampObj, (GLint) param);
 681       break;
 682    case GL_TEXTURE_MIN_LOD:
 683       res = set_sampler_min_lod(ctx, sampObj, param);
 684       break;
 685    case GL_TEXTURE_MAX_LOD:
 686       res = set_sampler_max_lod(ctx, sampObj, param);
 687       break;
 688    case GL_TEXTURE_LOD_BIAS:
 689       res = set_sampler_lod_bias(ctx, sampObj, param);
 690       break;
 691    case GL_TEXTURE_COMPARE_MODE:
 692       res = set_sampler_compare_mode(ctx, sampObj, (GLint) param);
 693       break;
 694    case GL_TEXTURE_COMPARE_FUNC:
 695       res = set_sampler_compare_func(ctx, sampObj, (GLint) param);
 696       break;
 697    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 698       res = set_sampler_max_anisotropy(ctx, sampObj, param);
 699       break;
 700    case GL_TEXTURE_BORDER_COLOR:
 701       /* fall-through */
 702    default:
 703       res = INVALID_PNAME;
 704    }
 705
 706    switch (res) {
 707    case GL_FALSE:
 708       /* no change */
 709       break;
 710    case GL_TRUE:
 711       /* state change - we do nothing special at this time */
 712       break;
 713    case INVALID_PNAME:
 714       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterf(pname=%s)\n",
 715                   _mesa_lookup_enum_by_nr(pname));
 716       break;
 717    case INVALID_PARAM:
 718       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterf(param=%f)\n",
 719                   param);
 720       break;
 721    case INVALID_VALUE:
 722       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterf(param=%f)\n",
 723                   param);
 724       break;
 725    default:
 726       ;
 727    }
 728 }
 729
 730 static void GLAPIENTRY
 731 _mesa_SamplerParameteriv(GLuint sampler, GLenum pname, const GLint *params)
 732 {
 733    struct gl_sampler_object *sampObj;
 734    GLuint res;
 735    GET_CURRENT_CONTEXT(ctx);
 736
 737    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 738    if (!sampObj) {
 739       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteriv(sampler %u)",
 740                   sampler);
 741       return;
 742    }
 743
 744    switch (pname) {
 745    case GL_TEXTURE_WRAP_S:
 746       res = set_sampler_wrap_s(ctx, sampObj, params[0]);
 747       break;
 748    case GL_TEXTURE_WRAP_T:
 749       res = set_sampler_wrap_t(ctx, sampObj, params[0]);
 750       break;
 751    case GL_TEXTURE_WRAP_R:
 752       res = set_sampler_wrap_r(ctx, sampObj, params[0]);
 753       break;
 754    case GL_TEXTURE_MIN_FILTER:
 755       res = set_sampler_min_filter(ctx, sampObj, params[0]);
 756       break;
 757    case GL_TEXTURE_MAG_FILTER:
 758       res = set_sampler_mag_filter(ctx, sampObj, params[0]);
 759       break;
 760    case GL_TEXTURE_MIN_LOD:
 761       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
 762       break;
 763    case GL_TEXTURE_MAX_LOD:
 764       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
 765       break;
 766    case GL_TEXTURE_LOD_BIAS:
 767       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
 768       break;
 769    case GL_TEXTURE_COMPARE_MODE:
 770       res = set_sampler_compare_mode(ctx, sampObj, params[0]);
 771       break;
 772    case GL_TEXTURE_COMPARE_FUNC:
 773       res = set_sampler_compare_func(ctx, sampObj, params[0]);
 774       break;
 775    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 776       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
 777       break;
 778    case GL_TEXTURE_BORDER_COLOR:
 779       {
 780          GLfloat c[4];
 781          c[0] = INT_TO_FLOAT(params[0]);
 782          c[1] = INT_TO_FLOAT(params[1]);
 783          c[2] = INT_TO_FLOAT(params[2]);
 784          c[3] = INT_TO_FLOAT(params[3]);
 785          res = set_sampler_border_colorf(ctx, sampObj, c);
 786       }
 787       break;
 788    default:
 789       res = INVALID_PNAME;
 790    }
 791
 792    switch (res) {
 793    case GL_FALSE:
 794       /* no change */
 795       break;
 796    case GL_TRUE:
 797       /* state change - we do nothing special at this time */
 798       break;
 799    case INVALID_PNAME:
 800       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteriv(pname=%s)\n",
 801                   _mesa_lookup_enum_by_nr(pname));
 802       break;
 803    case INVALID_PARAM:
 804       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameteriv(param=%d)\n",
 805                   params[0]);
 806       break;
 807    case INVALID_VALUE:
 808       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameteriv(param=%d)\n",
 809                   params[0]);
 810       break;
 811    default:
 812       ;
 813    }
 814 }
 815
 816 static void GLAPIENTRY
 817 _mesa_SamplerParameterfv(GLuint sampler, GLenum pname, const GLfloat *params)
 818 {
 819    struct gl_sampler_object *sampObj;
 820    GLuint res;
 821    GET_CURRENT_CONTEXT(ctx);
 822
 823    ASSERT_OUTSIDE_BEGIN_END(ctx);
 824
 825    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 826    if (!sampObj) {
 827       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterfv(sampler %u)",
 828                   sampler);
 829       return;
 830    }
 831
 832    switch (pname) {
 833    case GL_TEXTURE_WRAP_S:
 834       res = set_sampler_wrap_s(ctx, sampObj, (GLint) params[0]);
 835       break;
 836    case GL_TEXTURE_WRAP_T:
 837       res = set_sampler_wrap_t(ctx, sampObj, (GLint) params[0]);
 838       break;
 839    case GL_TEXTURE_WRAP_R:
 840       res = set_sampler_wrap_r(ctx, sampObj, (GLint) params[0]);
 841       break;
 842    case GL_TEXTURE_MIN_FILTER:
 843       res = set_sampler_min_filter(ctx, sampObj, (GLint) params[0]);
 844       break;
 845    case GL_TEXTURE_MAG_FILTER:
 846       res = set_sampler_mag_filter(ctx, sampObj, (GLint) params[0]);
 847       break;
 848    case GL_TEXTURE_MIN_LOD:
 849       res = set_sampler_min_lod(ctx, sampObj, params[0]);
 850       break;
 851    case GL_TEXTURE_MAX_LOD:
 852       res = set_sampler_max_lod(ctx, sampObj, params[0]);
 853       break;
 854    case GL_TEXTURE_LOD_BIAS:
 855       res = set_sampler_lod_bias(ctx, sampObj, params[0]);
 856       break;
 857    case GL_TEXTURE_COMPARE_MODE:
 858       res = set_sampler_compare_mode(ctx, sampObj, (GLint) params[0]);
 859       break;
 860    case GL_TEXTURE_COMPARE_FUNC:
 861       res = set_sampler_compare_func(ctx, sampObj, (GLint) params[0]);
 862       break;
 863    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 864       res = set_sampler_max_anisotropy(ctx, sampObj, params[0]);
 865       break;
 866    case GL_TEXTURE_BORDER_COLOR:
 867       res = set_sampler_border_colorf(ctx, sampObj, params);
 868       break;
 869    default:
 870       res = INVALID_PNAME;
 871    }
 872
 873    switch (res) {
 874    case GL_FALSE:
 875       /* no change */
 876       break;
 877    case GL_TRUE:
 878       /* state change - we do nothing special at this time */
 879       break;
 880    case INVALID_PNAME:
 881       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterfv(pname=%s)\n",
 882                   _mesa_lookup_enum_by_nr(pname));
 883       break;
 884    case INVALID_PARAM:
 885       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterfv(param=%f)\n",
 886                   params[0]);
 887       break;
 888    case INVALID_VALUE:
 889       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterfv(param=%f)\n",
 890                   params[0]);
 891       break;
 892    default:
 893       ;
 894    }
 895 }
 896
 897 static void GLAPIENTRY
 898 _mesa_SamplerParameterIiv(GLuint sampler, GLenum pname, const GLint *params)
 899 {
 900    struct gl_sampler_object *sampObj;
 901    GLuint res;
 902    GET_CURRENT_CONTEXT(ctx);
 903
 904    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 905    if (!sampObj) {
 906       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIiv(sampler %u)",
 907                   sampler);
 908       return;
 909    }
 910
 911    switch (pname) {
 912    case GL_TEXTURE_WRAP_S:
 913       res = set_sampler_wrap_s(ctx, sampObj, params[0]);
 914       break;
 915    case GL_TEXTURE_WRAP_T:
 916       res = set_sampler_wrap_t(ctx, sampObj, params[0]);
 917       break;
 918    case GL_TEXTURE_WRAP_R:
 919       res = set_sampler_wrap_r(ctx, sampObj, params[0]);
 920       break;
 921    case GL_TEXTURE_MIN_FILTER:
 922       res = set_sampler_min_filter(ctx, sampObj, params[0]);
 923       break;
 924    case GL_TEXTURE_MAG_FILTER:
 925       res = set_sampler_mag_filter(ctx, sampObj, params[0]);
 926       break;
 927    case GL_TEXTURE_MIN_LOD:
 928       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
 929       break;
 930    case GL_TEXTURE_MAX_LOD:
 931       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
 932       break;
 933    case GL_TEXTURE_LOD_BIAS:
 934       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
 935       break;
 936    case GL_TEXTURE_COMPARE_MODE:
 937       res = set_sampler_compare_mode(ctx, sampObj, params[0]);
 938       break;
 939    case GL_TEXTURE_COMPARE_FUNC:
 940       res = set_sampler_compare_func(ctx, sampObj, params[0]);
 941       break;
 942    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
 943       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
 944       break;
 945    case GL_TEXTURE_BORDER_COLOR:
 946       res = set_sampler_border_colori(ctx, sampObj, params);
 947       break;
 948    default:
 949       res = INVALID_PNAME;
 950    }
 951
 952    switch (res) {
 953    case GL_FALSE:
 954       /* no change */
 955       break;
 956    case GL_TRUE:
 957       /* state change - we do nothing special at this time */
 958       break;
 959    case INVALID_PNAME:
 960       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIiv(pname=%s)\n",
 961                   _mesa_lookup_enum_by_nr(pname));
 962       break;
 963    case INVALID_PARAM:
 964       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIiv(param=%d)\n",
 965                   params[0]);
 966       break;
 967    case INVALID_VALUE:
 968       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIiv(param=%d)\n",
 969                   params[0]);
 970       break;
 971    default:
 972       ;
 973    }
 974 }
 975
 976
 977 static void GLAPIENTRY
 978 _mesa_SamplerParameterIuiv(GLuint sampler, GLenum pname, const GLuint *params)
 979 {
 980    struct gl_sampler_object *sampObj;
 981    GLuint res;
 982    GET_CURRENT_CONTEXT(ctx);
 983
 984    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
 985    if (!sampObj) {
 986       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIuiv(sampler %u)",
 987                   sampler);
 988       return;
 989    }
 990
 991    switch (pname) {
 992    case GL_TEXTURE_WRAP_S:
 993       res = set_sampler_wrap_s(ctx, sampObj, params[0]);
 994       break;
 995    case GL_TEXTURE_WRAP_T:
 996       res = set_sampler_wrap_t(ctx, sampObj, params[0]);
 997       break;
 998    case GL_TEXTURE_WRAP_R:
 999       res = set_sampler_wrap_r(ctx, sampObj, params[0]);
1000       break;
1001    case GL_TEXTURE_MIN_FILTER:
1002       res = set_sampler_min_filter(ctx, sampObj, params[0]);
1003       break;
1004    case GL_TEXTURE_MAG_FILTER:
1005       res = set_sampler_mag_filter(ctx, sampObj, params[0]);
1006       break;
1007    case GL_TEXTURE_MIN_LOD:
1008       res = set_sampler_min_lod(ctx, sampObj, (GLfloat) params[0]);
1009       break;
1010    case GL_TEXTURE_MAX_LOD:
1011       res = set_sampler_max_lod(ctx, sampObj, (GLfloat) params[0]);
1012       break;
1013    case GL_TEXTURE_LOD_BIAS:
1014       res = set_sampler_lod_bias(ctx, sampObj, (GLfloat) params[0]);
1015       break;
1016    case GL_TEXTURE_COMPARE_MODE:
1017       res = set_sampler_compare_mode(ctx, sampObj, params[0]);
1018       break;
1019    case GL_TEXTURE_COMPARE_FUNC:
1020       res = set_sampler_compare_func(ctx, sampObj, params[0]);
1021       break;
1022    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1023       res = set_sampler_max_anisotropy(ctx, sampObj, (GLfloat) params[0]);
1024       break;
1025    case GL_TEXTURE_BORDER_COLOR:
1026       res = set_sampler_border_colorui(ctx, sampObj, params);
1027       break;
1028    default:
1029       res = INVALID_PNAME;
1030    }
1031
1032    switch (res) {
1033    case GL_FALSE:
1034       /* no change */
1035       break;
1036    case GL_TRUE:
1037       /* state change - we do nothing special at this time */
1038       break;
1039    case INVALID_PNAME:
1040       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIuiv(pname=%s)\n",
1041                   _mesa_lookup_enum_by_nr(pname));
1042       break;
1043    case INVALID_PARAM:
1044       _mesa_error(ctx, GL_INVALID_ENUM, "glSamplerParameterIuiv(param=%u)\n",
1045                   params[0]);
1046       break;
1047    case INVALID_VALUE:
1048       _mesa_error(ctx, GL_INVALID_VALUE, "glSamplerParameterIuiv(param=%u)\n",
1049                   params[0]);
1050       break;
1051    default:
1052       ;
1053    }
1054 }
1055
1056
1057 static void GLAPIENTRY
1058 _mesa_GetSamplerParameteriv(GLuint sampler, GLenum pname, GLint *params)
1059 {
1060    struct gl_sampler_object *sampObj;
1061    GET_CURRENT_CONTEXT(ctx);
1062
1063    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1064    if (!sampObj) {
1065       _mesa_error(ctx, GL_INVALID_VALUE, "glGetSamplerParameteriv(sampler %u)",
1066                   sampler);
1067       return;
1068    }
1069
1070    switch (pname) {
1071    case GL_TEXTURE_WRAP_S:
1072       *params = sampObj->WrapS;
1073       break;
1074    case GL_TEXTURE_WRAP_T:
1075       *params = sampObj->WrapT;
1076       break;
1077    case GL_TEXTURE_WRAP_R:
1078       *params = sampObj->WrapR;
1079       break;
1080    case GL_TEXTURE_MIN_FILTER:
1081       *params = sampObj->MinFilter;
1082       break;
1083    case GL_TEXTURE_MAG_FILTER:
1084       *params = sampObj->MagFilter;
1085       break;
1086    case GL_TEXTURE_MIN_LOD:
1087       *params = (GLint) sampObj->MinLod;
1088       break;
1089    case GL_TEXTURE_MAX_LOD:
1090       *params = (GLint) sampObj->MaxLod;
1091       break;
1092    case GL_TEXTURE_LOD_BIAS:
1093       *params = (GLint) sampObj->LodBias;
1094       break;
1095    case GL_TEXTURE_COMPARE_MODE:
1096       if (!ctx->Extensions.ARB_shadow)
1097          goto invalid_pname;
1098       *params = sampObj->CompareMode;
1099       break;
1100    case GL_TEXTURE_COMPARE_FUNC:
1101       if (!ctx->Extensions.ARB_shadow)
1102          goto invalid_pname;
1103       *params = sampObj->CompareFunc;
1104       break;
1105    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1106       *params = (GLint) sampObj->MaxAnisotropy;
1107       break;
1108    case GL_TEXTURE_BORDER_COLOR:
1109       params[0] = FLOAT_TO_INT(sampObj->BorderColor.f[0]);
1110       params[1] = FLOAT_TO_INT(sampObj->BorderColor.f[1]);
1111       params[2] = FLOAT_TO_INT(sampObj->BorderColor.f[2]);
1112       params[3] = FLOAT_TO_INT(sampObj->BorderColor.f[3]);
1113       break;
1114    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1115       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1116          goto invalid_pname;
1117       *params = sampObj->CubeMapSeamless;
1118       break;
1119    default:
1120       goto invalid_pname;
1121    }
1122    return;
1123
1124 invalid_pname:
1125    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameteriv(pname=%s)",
1126                _mesa_lookup_enum_by_nr(pname));
1127 }
1128
1129
1130 static void GLAPIENTRY
1131 _mesa_GetSamplerParameterfv(GLuint sampler, GLenum pname, GLfloat *params)
1132 {
1133    struct gl_sampler_object *sampObj;
1134    GET_CURRENT_CONTEXT(ctx);
1135
1136    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1137    if (!sampObj) {
1138       _mesa_error(ctx, GL_INVALID_VALUE, "glGetSamplerParameterfv(sampler %u)",
1139                   sampler);
1140       return;
1141    }
1142
1143    switch (pname) {
1144    case GL_TEXTURE_WRAP_S:
1145       *params = (GLfloat) sampObj->WrapS;
1146       break;
1147    case GL_TEXTURE_WRAP_T:
1148       *params = (GLfloat) sampObj->WrapT;
1149       break;
1150    case GL_TEXTURE_WRAP_R:
1151       *params = (GLfloat) sampObj->WrapR;
1152       break;
1153    case GL_TEXTURE_MIN_FILTER:
1154       *params = (GLfloat) sampObj->MinFilter;
1155       break;
1156    case GL_TEXTURE_MAG_FILTER:
1157       *params = (GLfloat) sampObj->MagFilter;
1158       break;
1159    case GL_TEXTURE_MIN_LOD:
1160       *params = sampObj->MinLod;
1161       break;
1162    case GL_TEXTURE_MAX_LOD:
1163       *params = sampObj->MaxLod;
1164       break;
1165    case GL_TEXTURE_LOD_BIAS:
1166       *params = sampObj->LodBias;
1167       break;
1168    case GL_TEXTURE_COMPARE_MODE:
1169       if (!ctx->Extensions.ARB_shadow)
1170          goto invalid_pname;
1171       *params = (GLfloat) sampObj->CompareMode;
1172       break;
1173    case GL_TEXTURE_COMPARE_FUNC:
1174       if (!ctx->Extensions.ARB_shadow)
1175          goto invalid_pname;
1176       *params = (GLfloat) sampObj->CompareFunc;
1177       break;
1178    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1179       *params = sampObj->MaxAnisotropy;
1180       break;
1181    case GL_TEXTURE_BORDER_COLOR:
1182       params[0] = sampObj->BorderColor.f[0];
1183       params[1] = sampObj->BorderColor.f[1];
1184       params[2] = sampObj->BorderColor.f[2];
1185       params[3] = sampObj->BorderColor.f[3];
1186       break;
1187    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1188       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1189          goto invalid_pname;
1190       *params = (GLfloat) sampObj->CubeMapSeamless;
1191       break;
1192    default:
1193       goto invalid_pname;
1194    }
1195    return;
1196
1197 invalid_pname:
1198    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterfv(pname=%s)",
1199                _mesa_lookup_enum_by_nr(pname));
1200 }
1201
1202
1203 static void GLAPIENTRY
1204 _mesa_GetSamplerParameterIiv(GLuint sampler, GLenum pname, GLint *params)
1205 {
1206    struct gl_sampler_object *sampObj;
1207    GET_CURRENT_CONTEXT(ctx);
1208
1209    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1210    if (!sampObj) {
1211       _mesa_error(ctx, GL_INVALID_VALUE,
1212                   "glGetSamplerParameterIiv(sampler %u)",
1213                   sampler);
1214       return;
1215    }
1216
1217    switch (pname) {
1218    case GL_TEXTURE_WRAP_S:
1219       *params = sampObj->WrapS;
1220       break;
1221    case GL_TEXTURE_WRAP_T:
1222       *params = sampObj->WrapT;
1223       break;
1224    case GL_TEXTURE_WRAP_R:
1225       *params = sampObj->WrapR;
1226       break;
1227    case GL_TEXTURE_MIN_FILTER:
1228       *params = sampObj->MinFilter;
1229       break;
1230    case GL_TEXTURE_MAG_FILTER:
1231       *params = sampObj->MagFilter;
1232       break;
1233    case GL_TEXTURE_MIN_LOD:
1234       *params = (GLint) sampObj->MinLod;
1235       break;
1236    case GL_TEXTURE_MAX_LOD:
1237       *params = (GLint) sampObj->MaxLod;
1238       break;
1239    case GL_TEXTURE_LOD_BIAS:
1240       *params = (GLint) sampObj->LodBias;
1241       break;
1242    case GL_TEXTURE_COMPARE_MODE:
1243       if (!ctx->Extensions.ARB_shadow)
1244          goto invalid_pname;
1245       *params = sampObj->CompareMode;
1246       break;
1247    case GL_TEXTURE_COMPARE_FUNC:
1248       if (!ctx->Extensions.ARB_shadow)
1249          goto invalid_pname;
1250       *params = sampObj->CompareFunc;
1251       break;
1252    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1253       *params = (GLint) sampObj->MaxAnisotropy;
1254       break;
1255    case GL_TEXTURE_BORDER_COLOR:
1256       params[0] = sampObj->BorderColor.i[0];
1257       params[1] = sampObj->BorderColor.i[1];
1258       params[2] = sampObj->BorderColor.i[2];
1259       params[3] = sampObj->BorderColor.i[3];
1260       break;
1261    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1262       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1263          goto invalid_pname;
1264       *params = sampObj->CubeMapSeamless;
1265       break;
1266    default:
1267       goto invalid_pname;
1268    }
1269    return;
1270
1271 invalid_pname:
1272    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterIiv(pname=%s)",
1273                _mesa_lookup_enum_by_nr(pname));
1274 }
1275
1276
1277 static void GLAPIENTRY
1278 _mesa_GetSamplerParameterIuiv(GLuint sampler, GLenum pname, GLuint *params)
1279 {
1280    struct gl_sampler_object *sampObj;
1281    GET_CURRENT_CONTEXT(ctx);
1282
1283    sampObj = _mesa_lookup_samplerobj(ctx, sampler);
1284    if (!sampObj) {
1285       _mesa_error(ctx, GL_INVALID_VALUE,
1286                   "glGetSamplerParameterIuiv(sampler %u)",
1287                   sampler);
1288       return;
1289    }
1290
1291    switch (pname) {
1292    case GL_TEXTURE_WRAP_S:
1293       *params = sampObj->WrapS;
1294       break;
1295    case GL_TEXTURE_WRAP_T:
1296       *params = sampObj->WrapT;
1297       break;
1298    case GL_TEXTURE_WRAP_R:
1299       *params = sampObj->WrapR;
1300       break;
1301    case GL_TEXTURE_MIN_FILTER:
1302       *params = sampObj->MinFilter;
1303       break;
1304    case GL_TEXTURE_MAG_FILTER:
1305       *params = sampObj->MagFilter;
1306       break;
1307    case GL_TEXTURE_MIN_LOD:
1308       *params = (GLuint) sampObj->MinLod;
1309       break;
1310    case GL_TEXTURE_MAX_LOD:
1311       *params = (GLuint) sampObj->MaxLod;
1312       break;
1313    case GL_TEXTURE_LOD_BIAS:
1314       *params = (GLuint) sampObj->LodBias;
1315       break;
1316    case GL_TEXTURE_COMPARE_MODE:
1317       if (!ctx->Extensions.ARB_shadow)
1318          goto invalid_pname;
1319       *params = sampObj->CompareMode;
1320       break;
1321    case GL_TEXTURE_COMPARE_FUNC:
1322       if (!ctx->Extensions.ARB_shadow)
1323          goto invalid_pname;
1324       *params = sampObj->CompareFunc;
1325       break;
1326    case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1327       *params = (GLuint) sampObj->MaxAnisotropy;
1328       break;
1329    case GL_TEXTURE_BORDER_COLOR:
1330       params[0] = sampObj->BorderColor.ui[0];
1331       params[1] = sampObj->BorderColor.ui[1];
1332       params[2] = sampObj->BorderColor.ui[2];
1333       params[3] = sampObj->BorderColor.ui[3];
1334       break;
1335    case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1336       if (!ctx->Extensions.AMD_seamless_cubemap_per_texture)
1337          goto invalid_pname;
1338       *params = sampObj->CubeMapSeamless;
1339       break;
1340    default:
1341       goto invalid_pname;
1342    }
1343    return;
1344
1345 invalid_pname:
1346    _mesa_error(ctx, GL_INVALID_ENUM, "glGetSamplerParameterIuiv(pname=%s)",
1347                _mesa_lookup_enum_by_nr(pname));
1348 }
1349
1350
1351 void
1352 _mesa_init_sampler_object_functions(struct dd_function_table *driver)
1353 {
1354    driver->NewSamplerObject = _mesa_new_sampler_object;
1355    driver->DeleteSamplerObject = _mesa_delete_sampler_object;
1356 }
1357
1358
1359 void
1360 _mesa_init_sampler_object_dispatch(struct _glapi_table *disp)
1361 {
1362    SET_GenSamplers(disp, _mesa_GenSamplers);
1363    SET_DeleteSamplers(disp, _mesa_DeleteSamplers);
1364    SET_IsSampler(disp, _mesa_IsSampler);
1365    SET_BindSampler(disp, _mesa_BindSampler);
1366    SET_SamplerParameteri(disp, _mesa_SamplerParameteri);
1367    SET_SamplerParameterf(disp, _mesa_SamplerParameterf);
1368    SET_SamplerParameteriv(disp, _mesa_SamplerParameteriv);
1369    SET_SamplerParameterfv(disp, _mesa_SamplerParameterfv);
1370    SET_SamplerParameterIiv(disp, _mesa_SamplerParameterIiv);
1371    SET_SamplerParameterIuiv(disp, _mesa_SamplerParameterIuiv);
1372    SET_GetSamplerParameteriv(disp, _mesa_GetSamplerParameteriv);
1373    SET_GetSamplerParameterfv(disp, _mesa_GetSamplerParameterfv);
1374    SET_GetSamplerParameterIiv(disp, _mesa_GetSamplerParameterIiv);
1375    SET_GetSamplerParameterIuiv(disp, _mesa_GetSamplerParameterIuiv);
1376 }