src/mesa/drivers/glide/fxddtex.c

   1 /* $Id: fxddtex.c,v 1.50 2003/10/13 11:14:58 dborca Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  4.0
   6  *
   7  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  */
  26
  27 /* Authors:
  28  *    David Bucciarelli
  29  *    Brian Paul
  30  *    Daryll Strauss
  31  *    Keith Whitwell
  32  *    Daniel Borca
  33  *    Hiroshi Morii
  34  */
  35
  36
  37 #ifdef HAVE_CONFIG_H
  38 #include "conf.h"
  39 #endif
  40
  41 #if defined(FX)
  42
  43 #include "fxdrv.h"
  44 #include "enums.h"
  45 #include "image.h"
  46 #include "teximage.h"
  47 #include "texformat.h"
  48 #include "texstore.h"
  49 #include "texutil.h"
  50
  51
  52 void
  53 fxPrintTextureData(tfxTexInfo * ti)
  54 {
  55    fprintf(stderr, "Texture Data:\n");
  56    if (ti->tObj) {
  57       fprintf(stderr, "\tName: %d\n", ti->tObj->Name);
  58       fprintf(stderr, "\tBaseLevel: %d\n", ti->tObj->BaseLevel);
  59       fprintf(stderr, "\tSize: %d x %d\n",
  60               ti->tObj->Image[ti->tObj->BaseLevel]->Width,
  61               ti->tObj->Image[ti->tObj->BaseLevel]->Height);
  62    }
  63    else
  64       fprintf(stderr, "\tName: UNNAMED\n");
  65    fprintf(stderr, "\tLast used: %d\n", ti->lastTimeUsed);
  66    fprintf(stderr, "\tTMU: %ld\n", ti->whichTMU);
  67    fprintf(stderr, "\t%s\n", (ti->isInTM) ? "In TMU" : "Not in TMU");
  68    if (ti->tm[0])
  69       fprintf(stderr, "\tMem0: %x-%x\n", (unsigned) ti->tm[0]->startAddr,
  70               (unsigned) ti->tm[0]->endAddr);
  71    if (ti->tm[1])
  72       fprintf(stderr, "\tMem1: %x-%x\n", (unsigned) ti->tm[1]->startAddr,
  73               (unsigned) ti->tm[1]->endAddr);
  74    fprintf(stderr, "\tMipmaps: %d-%d\n", ti->minLevel, ti->maxLevel);
  75    fprintf(stderr, "\tFilters: min %d min %d\n",
  76            (int) ti->minFilt, (int) ti->maxFilt);
  77    fprintf(stderr, "\tClamps: s %d t %d\n", (int) ti->sClamp,
  78            (int) ti->tClamp);
  79    fprintf(stderr, "\tScales: s %f t %f\n", ti->sScale, ti->tScale);
  80    fprintf(stderr, "\t%s\n",
  81            (ti->fixedPalette) ? "Fixed palette" : "Non fixed palette");
  82    fprintf(stderr, "\t%s\n", (ti->validated) ? "Validated" : "Not validated");
  83 }
  84
  85
  86 /************************************************************************/
  87 /*************************** Texture Mapping ****************************/
  88 /************************************************************************/
  89
  90 static void
  91 fxTexInvalidate(GLcontext * ctx, struct gl_texture_object *tObj)
  92 {
  93    fxMesaContext fxMesa = FX_CONTEXT(ctx);
  94    tfxTexInfo *ti;
  95
  96    ti = fxTMGetTexInfo(tObj);
  97    if (ti->isInTM)
  98       fxTMMoveOutTM(fxMesa, tObj);      /* TO DO: SLOW but easy to write */
  99
 100    ti->validated = GL_FALSE;
 101    fxMesa->new_state |= FX_NEW_TEXTURING;
 102 }
 103
 104 static tfxTexInfo *
 105 fxAllocTexObjData(fxMesaContext fxMesa)
 106 {
 107    tfxTexInfo *ti;
 108
 109    if (!(ti = CALLOC(sizeof(tfxTexInfo)))) {
 110       fprintf(stderr, "%s: ERROR: out of memory !\n", __FUNCTION__);
 111       fxCloseHardware();
 112       exit(-1);
 113    }
 114
 115    ti->validated = GL_FALSE;
 116    ti->isInTM = GL_FALSE;
 117
 118    ti->whichTMU = FX_TMU_NONE;
 119
 120    ti->tm[FX_TMU0] = NULL;
 121    ti->tm[FX_TMU1] = NULL;
 122
 123    ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
 124    ti->maxFilt = GR_TEXTUREFILTER_BILINEAR;
 125
 126    ti->sClamp = GR_TEXTURECLAMP_WRAP;
 127    ti->tClamp = GR_TEXTURECLAMP_WRAP;
 128
 129    ti->mmMode = GR_MIPMAP_NEAREST;
 130    ti->LODblend = FXFALSE;
 131
 132    return ti;
 133 }
 134
 135 void
 136 fxDDTexBind(GLcontext * ctx, GLenum target, struct gl_texture_object *tObj)
 137 {
 138    fxMesaContext fxMesa = FX_CONTEXT(ctx);
 139    tfxTexInfo *ti;
 140
 141    if (TDFX_DEBUG & VERBOSE_DRIVER) {
 142       fprintf(stderr, "%s(%d, %x)\n", __FUNCTION__, tObj->Name,
 143               (GLuint) tObj->DriverData);
 144    }
 145
 146    if (target != GL_TEXTURE_2D)
 147       return;
 148
 149    if (!tObj->DriverData) {
 150       tObj->DriverData = fxAllocTexObjData(fxMesa);
 151    }
 152
 153    ti = fxTMGetTexInfo(tObj);
 154
 155    fxMesa->texBindNumber++;
 156    ti->lastTimeUsed = fxMesa->texBindNumber;
 157
 158    fxMesa->new_state |= FX_NEW_TEXTURING;
 159 }
 160
 161 void
 162 fxDDTexEnv(GLcontext * ctx, GLenum target, GLenum pname,
 163            const GLfloat * param)
 164 {
 165    fxMesaContext fxMesa = FX_CONTEXT(ctx);
 166
 167    if (TDFX_DEBUG & VERBOSE_DRIVER) {
 168       if (param)
 169          fprintf(stderr, "%s(%x, %x)\n", __FUNCTION__, pname, (GLint) (*param));
 170       else
 171          fprintf(stderr, "%s(%x)\n", __FUNCTION__, pname);
 172    }
 173
 174    /* apply any lod biasing right now */
 175    if (pname == GL_TEXTURE_LOD_BIAS_EXT) {
 176       grTexLodBiasValue(GR_TMU0, *param);
 177
 178       if (fxMesa->haveTwoTMUs) {
 179          grTexLodBiasValue(GR_TMU1, *param);
 180       }
 181
 182    }
 183
 184    fxMesa->new_state |= FX_NEW_TEXTURING;
 185 }
 186
 187 void
 188 fxDDTexParam(GLcontext * ctx, GLenum target, struct gl_texture_object *tObj,
 189              GLenum pname, const GLfloat * params)
 190 {
 191    fxMesaContext fxMesa = FX_CONTEXT(ctx);
 192    GLenum param = (GLenum) (GLint) params[0];
 193    tfxTexInfo *ti;
 194
 195    if (TDFX_DEBUG & VERBOSE_DRIVER) {
 196       fprintf(stderr, "fxDDTexParam(%d, %x, %s, %s)\n",
 197                       tObj->Name, (GLuint) tObj->DriverData,
 198                       _mesa_lookup_enum_by_nr(pname),
 199                       _mesa_lookup_enum_by_nr(param));
 200    }
 201
 202    if (target != GL_TEXTURE_2D)
 203       return;
 204
 205    if (!tObj->DriverData)
 206       tObj->DriverData = fxAllocTexObjData(fxMesa);
 207
 208    ti = fxTMGetTexInfo(tObj);
 209
 210    switch (pname) {
 211
 212    case GL_TEXTURE_MIN_FILTER:
 213       switch (param) {
 214       case GL_NEAREST:
 215          ti->mmMode = GR_MIPMAP_DISABLE;
 216          ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
 217          ti->LODblend = FXFALSE;
 218          break;
 219       case GL_LINEAR:
 220          ti->mmMode = GR_MIPMAP_DISABLE;
 221          ti->minFilt = GR_TEXTUREFILTER_BILINEAR;
 222          ti->LODblend = FXFALSE;
 223          break;
 224       case GL_NEAREST_MIPMAP_LINEAR:
 225          if (fxMesa->haveTwoTMUs) {
 226             ti->mmMode = GR_MIPMAP_NEAREST;
 227             ti->LODblend = FXTRUE;
 228          }
 229          else {
 230             ti->mmMode = GR_MIPMAP_NEAREST_DITHER;
 231             ti->LODblend = FXFALSE;
 232          }
 233          ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
 234          break; /* ZZZ: we may have to fall through here for V3 */
 235       case GL_NEAREST_MIPMAP_NEAREST:
 236          ti->mmMode = GR_MIPMAP_NEAREST;
 237          ti->minFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
 238          ti->LODblend = FXFALSE;
 239          break;
 240       case GL_LINEAR_MIPMAP_LINEAR:
 241         /* ZZZ: HACK ALERT! trilinear is bugged! mipmap blending produce
 242                 incorrect filtered colors for the smallest mipmap levels. */
 243 #if 0
 244          if (fxMesa->haveTwoTMUs) {
 245             ti->mmMode = GR_MIPMAP_NEAREST;
 246             ti->LODblend = FXTRUE;
 247          }
 248          else {
 249             ti->mmMode = GR_MIPMAP_NEAREST_DITHER;
 250             ti->LODblend = FXFALSE;
 251          }
 252          ti->minFilt = GR_TEXTUREFILTER_BILINEAR;
 253          break; /* ZZZ: we may have to fall through here for V3 */
 254 #endif
 255       case GL_LINEAR_MIPMAP_NEAREST:
 256          ti->mmMode = GR_MIPMAP_NEAREST;
 257          ti->minFilt = GR_TEXTUREFILTER_BILINEAR;
 258          ti->LODblend = FXFALSE;
 259          break;
 260       default:
 261          break;
 262       }
 263       fxTexInvalidate(ctx, tObj);
 264       break;
 265
 266    case GL_TEXTURE_MAG_FILTER:
 267       switch (param) {
 268       case GL_NEAREST:
 269          ti->maxFilt = GR_TEXTUREFILTER_POINT_SAMPLED;
 270          break;
 271       case GL_LINEAR:
 272          ti->maxFilt = GR_TEXTUREFILTER_BILINEAR;
 273          break;
 274       default:
 275          break;
 276       }
 277       fxTexInvalidate(ctx, tObj);
 278       break;
 279
 280    case GL_TEXTURE_WRAP_S:
 281       switch (param) {
 282       case GL_MIRRORED_REPEAT:
 283          ti->sClamp = GR_TEXTURECLAMP_MIRROR_EXT;
 284          break;
 285       case GL_CLAMP_TO_EDGE: /* CLAMP discarding border */
 286       case GL_CLAMP:
 287          ti->sClamp = GR_TEXTURECLAMP_CLAMP;
 288          break;
 289       case GL_REPEAT:
 290          ti->sClamp = GR_TEXTURECLAMP_WRAP;
 291          break;
 292       default:
 293          break;
 294       }
 295       fxMesa->new_state |= FX_NEW_TEXTURING;
 296       break;
 297
 298    case GL_TEXTURE_WRAP_T:
 299       switch (param) {
 300       case GL_MIRRORED_REPEAT:
 301          ti->tClamp = GR_TEXTURECLAMP_MIRROR_EXT;
 302          break;
 303       case GL_CLAMP_TO_EDGE: /* CLAMP discarding border */
 304       case GL_CLAMP:
 305          ti->tClamp = GR_TEXTURECLAMP_CLAMP;
 306          break;
 307       case GL_REPEAT:
 308          ti->tClamp = GR_TEXTURECLAMP_WRAP;
 309          break;
 310       default:
 311          break;
 312       }
 313       fxMesa->new_state |= FX_NEW_TEXTURING;
 314       break;
 315
 316    case GL_TEXTURE_BORDER_COLOR:
 317       /* TO DO */
 318       break;
 319
 320    case GL_TEXTURE_MIN_LOD:
 321       /* TO DO */
 322       break;
 323    case GL_TEXTURE_MAX_LOD:
 324       /* TO DO */
 325       break;
 326    case GL_TEXTURE_BASE_LEVEL:
 327       fxTexInvalidate(ctx, tObj);
 328       break;
 329    case GL_TEXTURE_MAX_LEVEL:
 330       fxTexInvalidate(ctx, tObj);
 331       break;
 332
 333    default:
 334       break;
 335    }
 336 }
 337
 338 void
 339 fxDDTexDel(GLcontext * ctx, struct gl_texture_object *tObj)
 340 {
 341    fxMesaContext fxMesa = FX_CONTEXT(ctx);
 342    tfxTexInfo *ti = fxTMGetTexInfo(tObj);
 343
 344    if (TDFX_DEBUG & VERBOSE_DRIVER) {
 345       fprintf(stderr, "%s(%d, %p)\n", __FUNCTION__, tObj->Name, (void *) ti);
 346    }
 347
 348    if (!ti)
 349       return;
 350
 351    fxTMFreeTexture(fxMesa, tObj);
 352
 353    FREE(ti);
 354    tObj->DriverData = NULL;
 355 }
 356
 357
 358
 359 /*
 360  * Convert a gl_color_table texture palette to Glide's format.
 361  */
 362 static void
 363 convertPalette(FxU32 data[256], const struct gl_color_table *table)
 364 {
 365    const GLubyte *tableUB = (const GLubyte *) table->Table;
 366    GLint width = table->Size;
 367    FxU32 r, g, b, a;
 368    GLint i;
 369
 370    ASSERT(!table->FloatTable);
 371
 372    switch (table->Format) {
 373    case GL_INTENSITY:
 374       for (i = 0; i < width; i++) {
 375          r = tableUB[i];
 376          g = tableUB[i];
 377          b = tableUB[i];
 378          a = tableUB[i];
 379          data[i] = (a << 24) | (r << 16) | (g << 8) | b;
 380       }
 381       break;
 382    case GL_LUMINANCE:
 383       for (i = 0; i < width; i++) {
 384          r = tableUB[i];
 385          g = tableUB[i];
 386          b = tableUB[i];
 387          a = 255;
 388          data[i] = (a << 24) | (r << 16) | (g << 8) | b;
 389       }
 390       break;
 391    case GL_ALPHA:
 392       for (i = 0; i < width; i++) {
 393          r = g = b = 255;
 394          a = tableUB[i];
 395          data[i] = (a << 24) | (r << 16) | (g << 8) | b;
 396       }
 397       break;
 398    case GL_LUMINANCE_ALPHA:
 399       for (i = 0; i < width; i++) {
 400          r = g = b = tableUB[i * 2 + 0];
 401          a = tableUB[i * 2 + 1];
 402          data[i] = (a << 24) | (r << 16) | (g << 8) | b;
 403       }
 404       break;
 405    case GL_RGB:
 406       for (i = 0; i < width; i++) {
 407          r = tableUB[i * 3 + 0];
 408          g = tableUB[i * 3 + 1];
 409          b = tableUB[i * 3 + 2];
 410          a = 255;
 411          data[i] = (a << 24) | (r << 16) | (g << 8) | b;
 412       }
 413       break;
 414    case GL_RGBA:
 415       for (i = 0; i < width; i++) {
 416          r = tableUB[i * 4 + 0];
 417          g = tableUB[i * 4 + 1];
 418          b = tableUB[i * 4 + 2];
 419          a = tableUB[i * 4 + 3];
 420          data[i] = (a << 24) | (r << 16) | (g << 8) | b;
 421       }
 422       break;
 423    }
 424 }
 425
 426
 427 void
 428 fxDDTexPalette(GLcontext * ctx, struct gl_texture_object *tObj)
 429 {
 430    fxMesaContext fxMesa = FX_CONTEXT(ctx);
 431
 432    if (tObj) {
 433       /* per-texture palette */
 434       tfxTexInfo *ti;
 435       if (TDFX_DEBUG & VERBOSE_DRIVER) {
 436          fprintf(stderr, "%s(%d, %x)\n", __FUNCTION__,
 437                  tObj->Name, (GLuint) tObj->DriverData);
 438       }
 439       if (!tObj->DriverData)
 440          tObj->DriverData = fxAllocTexObjData(fxMesa);
 441       ti = fxTMGetTexInfo(tObj);
 442       convertPalette(ti->palette.data, &tObj->Palette);
 443       fxTexInvalidate(ctx, tObj);
 444    }
 445    else {
 446       /* global texture palette */
 447       if (TDFX_DEBUG & VERBOSE_DRIVER) {
 448          fprintf(stderr, "%s(global)\n", __FUNCTION__);
 449       }
 450       convertPalette(fxMesa->glbPalette.data, &ctx->Texture.Palette);
 451       fxMesa->new_state |= FX_NEW_TEXTURING;
 452    }
 453 }
 454
 455
 456 void
 457 fxDDTexUseGlbPalette(GLcontext * ctx, GLboolean state)
 458 {
 459    fxMesaContext fxMesa = FX_CONTEXT(ctx);
 460
 461    if (TDFX_DEBUG & VERBOSE_DRIVER) {
 462       fprintf(stderr, "%s(%d)\n", __FUNCTION__, state);
 463    }
 464
 465    if (state) {
 466       fxMesa->haveGlobalPaletteTexture = 1;
 467
 468       grTexDownloadTable(GR_TEXTABLE_PALETTE, &(fxMesa->glbPalette));
 469    }
 470    else {
 471       fxMesa->haveGlobalPaletteTexture = 0;
 472
 473       if ((ctx->Texture.Unit[0]._Current == ctx->Texture.Unit[0].Current2D) &&
 474           (ctx->Texture.Unit[0]._Current != NULL)) {
 475          struct gl_texture_object *tObj = ctx->Texture.Unit[0]._Current;
 476
 477          if (!tObj->DriverData)
 478             tObj->DriverData = fxAllocTexObjData(fxMesa);
 479
 480          fxTexInvalidate(ctx, tObj);
 481       }
 482    }
 483 }
 484
 485
 486 static int
 487 logbase2(int n)
 488 {
 489    GLint i = 1;
 490    GLint log2 = 0;
 491
 492    if (n < 0) {
 493       return -1;
 494    }
 495
 496    while (n > i) {
 497       i *= 2;
 498       log2++;
 499    }
 500    if (i != n) {
 501       return -1;
 502    }
 503    else {
 504       return log2;
 505    }
 506 }
 507
 508
 509 int
 510 fxTexGetInfo(int w, int h, GrLOD_t * lodlevel, GrAspectRatio_t * ar,
 511              float *sscale, float *tscale,
 512              int *wscale, int *hscale)
 513 {
 514    static GrLOD_t lod[12] = {
 515           GR_LOD_LOG2_1,
 516           GR_LOD_LOG2_2,
 517           GR_LOD_LOG2_4,
 518           GR_LOD_LOG2_8,
 519           GR_LOD_LOG2_16,
 520           GR_LOD_LOG2_32,
 521           GR_LOD_LOG2_64,
 522           GR_LOD_LOG2_128,
 523           GR_LOD_LOG2_256,
 524           GR_LOD_LOG2_512,
 525           GR_LOD_LOG2_1024,
 526           GR_LOD_LOG2_2048
 527    };
 528
 529    int logw, logh, ws, hs;
 530    GrLOD_t l;
 531    GrAspectRatio_t aspectratio;
 532    float s, t;
 533
 534    logw = logbase2(w);
 535    logh = logbase2(h);
 536
 537    switch (logw - logh) {
 538    case 0:
 539       aspectratio = GR_ASPECT_LOG2_1x1;
 540       l = lod[logw];
 541       s = t = 256.0f;
 542       ws = hs = 1;
 543       break;
 544    case 1:
 545       aspectratio = GR_ASPECT_LOG2_2x1;
 546       l = lod[logw];
 547       s = 256.0f;
 548       t = 128.0f;
 549       ws = 1;
 550       hs = 1;
 551       break;
 552    case 2:
 553       aspectratio = GR_ASPECT_LOG2_4x1;
 554       l = lod[logw];
 555       s = 256.0f;
 556       t = 64.0f;
 557       ws = 1;
 558       hs = 1;
 559       break;
 560    case 3:
 561       aspectratio = GR_ASPECT_LOG2_8x1;
 562       l = lod[logw];
 563       s = 256.0f;
 564       t = 32.0f;
 565       ws = 1;
 566       hs = 1;
 567       break;
 568    case -1:
 569       aspectratio = GR_ASPECT_LOG2_1x2;
 570       l = lod[logh];
 571       s = 128.0f;
 572       t = 256.0f;
 573       ws = 1;
 574       hs = 1;
 575       break;
 576    case -2:
 577       aspectratio = GR_ASPECT_LOG2_1x4;
 578       l = lod[logh];
 579       s = 64.0f;
 580       t = 256.0f;
 581       ws = 1;
 582       hs = 1;
 583       break;
 584    case -3:
 585       aspectratio = GR_ASPECT_LOG2_1x8;
 586       l = lod[logh];
 587       s = 32.0f;
 588       t = 256.0f;
 589       ws = 1;
 590       hs = 1;
 591       break;
 592    default:
 593       if ((logw - logh) > 3) {
 594          aspectratio = GR_ASPECT_LOG2_8x1;
 595          l = lod[logw];
 596          s = 256.0f;
 597          t = 32.0f;
 598          ws = 1;
 599          hs = 1 << (logw - logh - 3);
 600       } else /*if ((logw - logh) < -3)*/ {
 601          aspectratio = GR_ASPECT_LOG2_1x8;
 602          l = lod[logh];
 603          s = 32.0f;
 604          t = 256.0f;
 605          ws = 1 << (logh - logw - 3);
 606          hs = 1;
 607       }
 608    }
 609
 610    if (lodlevel)
 611       (*lodlevel) = l;
 612
 613    if (ar)
 614       (*ar) = aspectratio;
 615
 616    if (sscale)
 617       (*sscale) = s;
 618
 619    if (tscale)
 620       (*tscale) = t;
 621
 622    if (wscale)
 623       (*wscale) = ws;
 624
 625    if (hscale)
 626       (*hscale) = hs;
 627
 628
 629    return 1;
 630 }
 631
 632 static GLboolean
 633 fxIsTexSupported(GLenum target, GLint internalFormat,
 634                  const struct gl_texture_image *image)
 635 {
 636    if (target != GL_TEXTURE_2D)
 637       return GL_FALSE;
 638
 639    if (!fxTexGetInfo(image->Width, image->Height, NULL, NULL, NULL, NULL, NULL, NULL))
 640        return GL_FALSE;
 641
 642    if (image->Border > 0)
 643       return GL_FALSE;
 644
 645    return GL_TRUE;
 646 }
 647
 648
 649 /**********************************************************************/
 650 /**** NEW TEXTURE IMAGE FUNCTIONS                                  ****/
 651 /**********************************************************************/
 652
 653 /* Texel-fetch functions for software texturing and glGetTexImage().
 654  * We should have been able to use some "standard" fetch functions (which
 655  * may get defined in texutil.c) but we have to account for scaled texture
 656  * images on tdfx hardware (the 8:1 aspect ratio limit).
 657  * Hence, we need special functions here.
 658  */
 659
 660 static void
 661 fetch_intensity8(const struct gl_texture_image *texImage,
 662                  GLint i, GLint j, GLint k, GLvoid * texelOut)
 663 {
 664    GLchan *rgba = (GLchan *) texelOut;
 665    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 666    const GLubyte *texel;
 667
 668    i = i * mml->wScale;
 669    j = j * mml->hScale;
 670
 671    texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
 672    rgba[RCOMP] = *texel;
 673    rgba[GCOMP] = *texel;
 674    rgba[BCOMP] = *texel;
 675    rgba[ACOMP] = *texel;
 676 }
 677
 678
 679 static void
 680 fetch_luminance8(const struct gl_texture_image *texImage,
 681                  GLint i, GLint j, GLint k, GLvoid * texelOut)
 682 {
 683    GLchan *rgba = (GLchan *) texelOut;
 684    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 685    const GLubyte *texel;
 686
 687    i = i * mml->wScale;
 688    j = j * mml->hScale;
 689
 690    texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
 691    rgba[RCOMP] = *texel;
 692    rgba[GCOMP] = *texel;
 693    rgba[BCOMP] = *texel;
 694    rgba[ACOMP] = 255;
 695 }
 696
 697
 698 static void
 699 fetch_alpha8(const struct gl_texture_image *texImage,
 700              GLint i, GLint j, GLint k, GLvoid * texelOut)
 701 {
 702    GLchan *rgba = (GLchan *) texelOut;
 703    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 704    const GLubyte *texel;
 705
 706    i = i * mml->wScale;
 707    j = j * mml->hScale;
 708    i = i * mml->width / texImage->Width;
 709    j = j * mml->height / texImage->Height;
 710
 711    texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
 712    rgba[RCOMP] = 255;
 713    rgba[GCOMP] = 255;
 714    rgba[BCOMP] = 255;
 715    rgba[ACOMP] = *texel;
 716 }
 717
 718
 719 static void
 720 fetch_index8(const struct gl_texture_image *texImage,
 721              GLint i, GLint j, GLint k, GLvoid * texelOut)
 722 {
 723    GLchan *indexOut = (GLchan *) texelOut;
 724    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 725    const GLubyte *texel;
 726
 727    i = i * mml->wScale;
 728    j = j * mml->hScale;
 729    i = i * mml->width / texImage->Width;
 730    j = j * mml->height / texImage->Height;
 731
 732    texel = ((GLubyte *) texImage->Data) + j * mml->width + i;
 733    *indexOut = *texel;
 734 }
 735
 736
 737 static void
 738 fetch_luminance8_alpha8(const struct gl_texture_image *texImage,
 739                         GLint i, GLint j, GLint k, GLvoid * texelOut)
 740 {
 741    GLchan *rgba = (GLchan *) texelOut;
 742    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 743    const GLubyte *texel;
 744
 745    i = i * mml->wScale;
 746    j = j * mml->hScale;
 747
 748    texel = ((GLubyte *) texImage->Data) + (j * mml->width + i) * 2;
 749    rgba[RCOMP] = texel[0];
 750    rgba[GCOMP] = texel[0];
 751    rgba[BCOMP] = texel[0];
 752    rgba[ACOMP] = texel[1];
 753 }
 754
 755
 756 static void
 757 fetch_r5g6b5(const struct gl_texture_image *texImage,
 758              GLint i, GLint j, GLint k, GLvoid * texelOut)
 759 {
 760    GLchan *rgba = (GLchan *) texelOut;
 761    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 762    const GLushort *texel;
 763
 764    i = i * mml->wScale;
 765    j = j * mml->hScale;
 766
 767    texel = ((GLushort *) texImage->Data) + j * mml->width + i;
 768    rgba[RCOMP] = FX_rgb_scale_5[(*texel >> 11) & 0x1F];
 769    rgba[GCOMP] = FX_rgb_scale_6[(*texel >>  5) & 0x3F];
 770    rgba[BCOMP] = FX_rgb_scale_5[ *texel        & 0x1F];
 771    rgba[ACOMP] = 255;
 772 }
 773
 774
 775 static void
 776 fetch_r4g4b4a4(const struct gl_texture_image *texImage,
 777                GLint i, GLint j, GLint k, GLvoid * texelOut)
 778 {
 779    GLchan *rgba = (GLchan *) texelOut;
 780    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 781    const GLushort *texel;
 782
 783    i = i * mml->wScale;
 784    j = j * mml->hScale;
 785
 786    texel = ((GLushort *) texImage->Data) + j * mml->width + i;
 787    rgba[RCOMP] = FX_rgb_scale_4[(*texel >> 12) & 0xF];
 788    rgba[GCOMP] = FX_rgb_scale_4[(*texel >>  8) & 0xF];
 789    rgba[BCOMP] = FX_rgb_scale_4[(*texel >>  4) & 0xF];
 790    rgba[ACOMP] = FX_rgb_scale_4[ *texel        & 0xF];
 791 }
 792
 793
 794 static void
 795 fetch_r5g5b5a1(const struct gl_texture_image *texImage,
 796                GLint i, GLint j, GLint k, GLvoid * texelOut)
 797 {
 798    GLchan *rgba = (GLchan *) texelOut;
 799    const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 800    const GLushort *texel;
 801
 802    i = i * mml->wScale;
 803    j = j * mml->hScale;
 804
 805    texel = ((GLushort *) texImage->Data) + j * mml->width + i;
 806    rgba[RCOMP] = FX_rgb_scale_5[(*texel >> 11) & 0x1F];
 807    rgba[GCOMP] = FX_rgb_scale_5[(*texel >>  6) & 0x1F];
 808    rgba[BCOMP] = FX_rgb_scale_5[(*texel >>  1) & 0x1F];
 809    rgba[ACOMP] = ((*texel) & 0x01) * 255;
 810 }
 811
 812
 813 static void
 814 fetch_a8r8g8b8(const struct gl_texture_image *texImage,
 815                GLint i, GLint j, GLint k, GLvoid * texelOut)
 816 {
 817     GLchan *rgba = (GLchan *) texelOut;
 818     const tfxMipMapLevel *mml = FX_MIPMAP_DATA(texImage);
 819     const GLuint *texel;
 820
 821     i = i * mml->wScale;
 822     j = j * mml->hScale;
 823
 824     texel = ((GLuint *) texImage->Data) + j * mml->width + i;
 825     rgba[RCOMP] = (((*texel) >> 16) & 0xff);
 826     rgba[GCOMP] = (((*texel) >>  8) & 0xff);
 827     rgba[BCOMP] = (((*texel)      ) & 0xff);
 828     rgba[ACOMP] = (((*texel) >> 24) & 0xff);
 829 }
 830
 831
 832 static void
 833 PrintTexture(int w, int h, int c, const GLubyte * data)
 834 {
 835    int i, j;
 836    for (i = 0; i < h; i++) {
 837       for (j = 0; j < w; j++) {
 838          if (c == 2)
 839             fprintf(stderr, "%02x %02x  ", data[0], data[1]);
 840          else if (c == 3)
 841             fprintf(stderr, "%02x %02x %02x  ", data[0], data[1], data[2]);
 842          data += c;
 843       }
 844       fprintf(stderr, "\n");
 845    }
 846 }
 847
 848
 849 const struct gl_texture_format *
 850 fxDDChooseTextureFormat( GLcontext *ctx, GLint internalFormat,
 851                          GLenum srcFormat, GLenum srcType )
 852 {
 853    fxMesaContext fxMesa = FX_CONTEXT(ctx);
 854    GLboolean allow32bpt = fxMesa->HaveTexFmt;
 855
 856    if (TDFX_DEBUG & VERBOSE_TEXTURE) {
 857       fprintf(stderr, "fxDDChooseTextureFormat(...)\n");
 858    }
 859
 860    switch (internalFormat) {
 861    case GL_INTENSITY:
 862    case GL_INTENSITY4:
 863    case GL_INTENSITY8:
 864    case GL_INTENSITY12:
 865    case GL_INTENSITY16:
 866    case GL_COMPRESSED_INTENSITY:
 867       return &_mesa_texformat_i8;
 868    case 1:
 869    case GL_LUMINANCE:
 870    case GL_LUMINANCE4:
 871    case GL_LUMINANCE8:
 872    case GL_LUMINANCE12:
 873    case GL_LUMINANCE16:
 874    case GL_COMPRESSED_LUMINANCE:
 875       return &_mesa_texformat_l8;
 876    case GL_ALPHA:
 877    case GL_ALPHA4:
 878    case GL_ALPHA8:
 879    case GL_ALPHA12:
 880    case GL_ALPHA16:
 881    case GL_COMPRESSED_ALPHA:
 882       return &_mesa_texformat_a8;
 883    case GL_COLOR_INDEX:
 884    case GL_COLOR_INDEX1_EXT:
 885    case GL_COLOR_INDEX2_EXT:
 886    case GL_COLOR_INDEX4_EXT:
 887    case GL_COLOR_INDEX8_EXT:
 888    case GL_COLOR_INDEX12_EXT:
 889    case GL_COLOR_INDEX16_EXT:
 890       return &_mesa_texformat_ci8;
 891    case 2:
 892    case GL_LUMINANCE_ALPHA:
 893    case GL_LUMINANCE4_ALPHA4:
 894    case GL_LUMINANCE6_ALPHA2:
 895    case GL_LUMINANCE8_ALPHA8:
 896    case GL_LUMINANCE12_ALPHA4:
 897    case GL_LUMINANCE12_ALPHA12:
 898    case GL_LUMINANCE16_ALPHA16:
 899    case GL_COMPRESSED_LUMINANCE_ALPHA:
 900       return &_mesa_texformat_al88;
 901    case GL_R3_G3_B2:
 902    case GL_RGB4:
 903    case GL_RGB5:
 904       return &_mesa_texformat_rgb565;
 905    case 3:
 906    case GL_RGB:
 907    case GL_COMPRESSED_RGB:
 908      if ( srcFormat == GL_RGB && srcType == GL_UNSIGNED_SHORT_5_6_5 ) {
 909        return &_mesa_texformat_rgb565;
 910      }
 911      /* intentional fall through */
 912    case GL_RGB8:
 913    case GL_RGB10:
 914    case GL_RGB12:
 915    case GL_RGB16:
 916       return (allow32bpt) ? &_mesa_texformat_argb8888
 917                           : &_mesa_texformat_rgb565;
 918    case GL_RGBA2:
 919    case GL_RGBA4:
 920       return &_mesa_texformat_argb4444;
 921    case 4:
 922    case GL_RGBA:
 923    case GL_COMPRESSED_RGBA:
 924      if ( srcFormat == GL_BGRA ) {
 925        if ( srcType == GL_UNSIGNED_INT_8_8_8_8_REV ) {
 926          return &_mesa_texformat_argb8888;
 927        }
 928        else if ( srcType == GL_UNSIGNED_SHORT_4_4_4_4_REV ) {
 929          return &_mesa_texformat_argb4444;
 930        }
 931        else if ( srcType == GL_UNSIGNED_SHORT_1_5_5_5_REV ) {
 932          return &_mesa_texformat_argb1555;
 933        }
 934      }
 935      /* intentional fall through */
 936    case GL_RGBA8:
 937    case GL_RGB10_A2:
 938    case GL_RGBA12:
 939    case GL_RGBA16:
 940       return (allow32bpt) ? &_mesa_texformat_argb8888
 941                           : &_mesa_texformat_argb4444;
 942    case GL_RGB5_A1:
 943       return &_mesa_texformat_argb1555;
 944 #if 0
 945    /* GL_EXT_texture_compression_s3tc */
 946    case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
 947       return &_mesa_texformat_rgb_dxt1;
 948    case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
 949       return &_mesa_texformat_rgba_dxt1;
 950    case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
 951       return &_mesa_texformat_rgba_dxt3;
 952    case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
 953       return &_mesa_texformat_rgba_dxt5;
 954    /*case GL_COMPRESSED_RGB_FXT1_3DFX:
 955      case GL_COMPRESSED_RGBA_FXT1_3DFX:
 956       return blah;*/
 957 #endif
 958    default:
 959       _mesa_problem(NULL, "unexpected format in fxDDChooseTextureFormat");
 960       return NULL;
 961    }
 962 }
 963
 964
 965 static GrTextureFormat_t
 966 fxGlideFormat(GLint mesaFormat)
 967 {
 968    switch (mesaFormat) {
 969    case MESA_FORMAT_I8:
 970       return GR_TEXFMT_ALPHA_8;
 971    case MESA_FORMAT_A8:
 972       return GR_TEXFMT_ALPHA_8;
 973    case MESA_FORMAT_L8:
 974       return GR_TEXFMT_INTENSITY_8;
 975    case MESA_FORMAT_CI8:
 976       return GR_TEXFMT_P_8;
 977    case MESA_FORMAT_AL88:
 978       return GR_TEXFMT_ALPHA_INTENSITY_88;
 979    case MESA_FORMAT_RGB565:
 980       return GR_TEXFMT_RGB_565;
 981    case MESA_FORMAT_ARGB4444:
 982       return GR_TEXFMT_ARGB_4444;
 983    case MESA_FORMAT_ARGB1555:
 984       return GR_TEXFMT_ARGB_1555;
 985    case MESA_FORMAT_ARGB8888:
 986       return GR_TEXFMT_ARGB_8888;
 987 #if 0
 988    case MESA_FORMAT_RGB_DXT1:
 989    case MESA_FORMAT_RGBA_DXT1:
 990      return GR_TEXFMT_ARGB_CMP_DXT1;
 991    case MESA_FORMAT_RGBA_DXT3:
 992      return GR_TEXFMT_ARGB_CMP_DXT3;
 993    case MESA_FORMAT_RGBA_DXT5:
 994      return GR_TEXFMT_ARGB_CMP_DXT5;
 995    /*case MESA_FORMAT_ARGB_CMP_FXT1:
 996      return GR_TEXFMT_ARGB_CMP_FXT1;
 997    case MESA_FORMAT_RGB_CMP_FXT1:
 998      return GL_COMPRESSED_RGBA_FXT1_3DFX;*/
 999 #endif
1000    default:
1001       _mesa_problem(NULL, "Unexpected format in fxGlideFormat");
1002       return 0;
1003    }
1004 }
1005
1006
1007 static FetchTexelFunc
1008 fxFetchFunction(GLint mesaFormat)
1009 {
1010    switch (mesaFormat) {
1011    case MESA_FORMAT_I8:
1012       return fetch_intensity8;
1013    case MESA_FORMAT_A8:
1014       return fetch_alpha8;
1015    case MESA_FORMAT_L8:
1016       return fetch_luminance8;
1017    case MESA_FORMAT_CI8:
1018       return fetch_index8;
1019    case MESA_FORMAT_AL88:
1020       return fetch_luminance8_alpha8;
1021    case MESA_FORMAT_RGB565:
1022       return fetch_r5g6b5;
1023    case MESA_FORMAT_ARGB4444:
1024       return fetch_r4g4b4a4;
1025    case MESA_FORMAT_ARGB1555:
1026       return fetch_r5g5b5a1;
1027    case MESA_FORMAT_ARGB8888:
1028       return fetch_a8r8g8b8;
1029 #if 0
1030    case MESA_FORMAT_RGB_DXT1:
1031    case MESA_FORMAT_RGBA_DXT1:
1032    case MESA_FORMAT_RGBA_DXT3:
1033    case MESA_FORMAT_RGBA_DXT5:
1034      return fetch_r4g4b4a4;
1035 #endif
1036    default:
1037       _mesa_problem(NULL, "Unexpected format in fxFetchFunction");
1038       return NULL;
1039    }
1040 }
1041
1042 void
1043 fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level,
1044                GLint internalFormat, GLint width, GLint height, GLint border,
1045                GLenum format, GLenum type, const GLvoid * pixels,
1046                const struct gl_pixelstore_attrib *packing,
1047                struct gl_texture_object *texObj,
1048                struct gl_texture_image *texImage)
1049 {
1050    fxMesaContext fxMesa = FX_CONTEXT(ctx);
1051    tfxTexInfo *ti;
1052    tfxMipMapLevel *mml;
1053    GLint texelBytes;
1054
1055    if (TDFX_DEBUG & VERBOSE_TEXTURE) {
1056        fprintf(stderr, "fxDDTexImage2D: id=%d int 0x%x  format 0x%x  type 0x%x  %dx%d\n",
1057                        texObj->Name, texImage->IntFormat, format, type,
1058                        texImage->Width, texImage->Height);
1059    }
1060
1061    if (!fxIsTexSupported(target, internalFormat, texImage)) {
1062       _mesa_problem(NULL, "fx Driver: unsupported texture in fxDDTexImg()\n");
1063       return;
1064    }
1065
1066    if (!texObj->DriverData) {
1067       texObj->DriverData = fxAllocTexObjData(fxMesa);
1068       if (!texObj->DriverData) {
1069          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
1070          return;
1071       }
1072    }
1073    ti = fxTMGetTexInfo(texObj);
1074
1075    if (!texImage->DriverData) {
1076       texImage->DriverData = CALLOC(sizeof(tfxMipMapLevel));
1077       if (!texImage->DriverData) {
1078          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
1079          return;
1080       }
1081    }
1082    mml = FX_MIPMAP_DATA(texImage);
1083
1084    fxTexGetInfo(width, height, NULL, NULL, NULL, NULL,
1085                 &mml->wScale, &mml->hScale);
1086
1087    mml->width = width * mml->wScale;
1088    mml->height = height * mml->hScale;
1089
1090
1091    /* choose the texture format */
1092    assert(ctx->Driver.ChooseTextureFormat);
1093    texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
1094                                           internalFormat, format, type);
1095    assert(texImage->TexFormat);
1096    texelBytes = texImage->TexFormat->TexelBytes;
1097    /*if (!fxMesa->HaveTexFmt) assert(texelBytes == 1 || texelBytes == 2);*/
1098
1099    if (mml->wScale != 1 || mml->hScale != 1) {
1100       /* rescale image to overcome 1:8 aspect limitation */
1101       GLvoid *tempImage;
1102       tempImage = MALLOC(width * height * texelBytes);
1103       if (!tempImage) {
1104          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
1105          return;
1106       }
1107       /* unpack image, apply transfer ops and store in tempImage */
1108       _mesa_transfer_teximage(ctx, 2, texImage->Format,
1109                               texImage->TexFormat,
1110                               tempImage,
1111                               width, height, 1, 0, 0, 0,
1112                               width * texelBytes,
1113                               0, /* dstImageStride */
1114                               format, type, pixels, packing);
1115       assert(!texImage->Data);
1116       texImage->Data = MESA_PBUFFER_ALLOC(mml->width * mml->height * texelBytes);
1117       if (!texImage->Data) {
1118          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
1119          FREE(tempImage);
1120          return;
1121       }
1122       _mesa_rescale_teximage2d(texelBytes,
1123                                mml->width * texelBytes, /* dst stride */
1124                                width, height,
1125                                mml->width, mml->height,
1126                                tempImage /*src*/, texImage->Data /*dst*/ );
1127       FREE(tempImage);
1128    }
1129    else {
1130       /* no rescaling needed */
1131       assert(!texImage->Data);
1132       texImage->Data = MESA_PBUFFER_ALLOC(mml->width * mml->height * texelBytes);
1133       if (!texImage->Data) {
1134          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
1135          return;
1136       }
1137       /* unpack image, apply transfer ops and store in texImage->Data */
1138       _mesa_transfer_teximage(ctx, 2, texImage->Format,
1139                               texImage->TexFormat, texImage->Data,
1140                               width, height, 1, 0, 0, 0,
1141                               texImage->Width * texelBytes,
1142                               0, /* dstImageStride */
1143                               format, type, pixels, packing);
1144    }
1145
1146    mml->glideFormat = fxGlideFormat(texImage->TexFormat->MesaFormat);
1147    ti->info.format = mml->glideFormat;
1148    texImage->FetchTexel = fxFetchFunction(texImage->TexFormat->MesaFormat);
1149
1150    /* [dBorca]
1151     * Hack alert: unsure...
1152     */
1153    if (!(fxMesa->new_state & FX_NEW_TEXTURING) && ti->validated && ti->isInTM) {
1154       /*fprintf(stderr, "reloadmipmaplevels\n"); */
1155       fxTMReloadMipMapLevel(fxMesa, texObj, level);
1156    }
1157    else {
1158       /*fprintf(stderr, "invalidate2\n"); */
1159       fxTexInvalidate(ctx, texObj);
1160    }
1161 }
1162
1163
1164 void
1165 fxDDTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
1166                   GLint xoffset, GLint yoffset,
1167                   GLsizei width, GLsizei height,
1168                   GLenum format, GLenum type, const GLvoid * pixels,
1169                   const struct gl_pixelstore_attrib *packing,
1170                   struct gl_texture_object *texObj,
1171                   struct gl_texture_image *texImage)
1172 {
1173    fxMesaContext fxMesa = FX_CONTEXT(ctx);
1174    tfxTexInfo *ti;
1175    tfxMipMapLevel *mml;
1176    GLint texelBytes;
1177
1178    if (TDFX_DEBUG & VERBOSE_TEXTURE) {
1179        fprintf(stderr, "fxDDTexSubImage2D: id=%d\n", texObj->Name);
1180    }
1181
1182    if (!texObj->DriverData) {
1183       _mesa_problem(ctx, "problem in fxDDTexSubImage2D");
1184       return;
1185    }
1186
1187    ti = fxTMGetTexInfo(texObj);
1188    assert(ti);
1189    mml = FX_MIPMAP_DATA(texImage);
1190    assert(mml);
1191
1192    assert(texImage->Data);      /* must have an existing texture image! */
1193    assert(texImage->Format);
1194
1195    texelBytes = texImage->TexFormat->TexelBytes;
1196
1197    if (mml->wScale != 1 || mml->hScale != 1) {
1198       /* need to rescale subimage to match mipmap level's rescale factors */
1199       const GLint newWidth = width * mml->wScale;
1200       const GLint newHeight = height * mml->hScale;
1201       GLvoid *tempImage;
1202       GLubyte *destAddr;
1203       tempImage = MALLOC(width * height * texelBytes);
1204       if (!tempImage) {
1205          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage2D");
1206          return;
1207       }
1208
1209       _mesa_transfer_teximage(ctx, 2, texImage->Format,/* Tex int format */
1210                               texImage->TexFormat,     /* dest format */
1211                               (GLubyte *) tempImage,   /* dest */
1212                               width, height, 1,        /* subimage size */
1213                               0, 0, 0,                 /* subimage pos */
1214                               width * texelBytes,      /* dest row stride */
1215                               0,                       /* dst image stride */
1216                               format, type, pixels, packing);
1217
1218       /* now rescale */
1219       /* compute address of dest subimage within the overal tex image */
1220       destAddr = (GLubyte *) texImage->Data
1221          + (yoffset * mml->hScale * mml->width
1222             + xoffset * mml->wScale) * texelBytes;
1223
1224       _mesa_rescale_teximage2d(texelBytes,
1225                                mml->width * texelBytes, /* dst stride */
1226                                width, height,
1227                                newWidth, newHeight,
1228                                tempImage, destAddr);
1229
1230       FREE(tempImage);
1231    }
1232    else {
1233       /* no rescaling needed */
1234       _mesa_transfer_teximage(ctx, 2, texImage->Format,  /* Tex int format */
1235                               texImage->TexFormat,       /* dest format */
1236                               (GLubyte *) texImage->Data,/* dest */
1237                               width, height, 1,          /* subimage size */
1238                               xoffset, yoffset, 0,       /* subimage pos */
1239                               mml->width * texelBytes,   /* dest row stride */
1240                               0,                         /* dst image stride */
1241                               format, type, pixels, packing);
1242    }
1243
1244    /* [dBorca]
1245     * Hack alert: unsure...
1246     */
1247    if (!(fxMesa->new_state & FX_NEW_TEXTURING) && ti->validated && ti->isInTM)
1248       fxTMReloadMipMapLevel(fxMesa, texObj, level);
1249    else
1250       fxTexInvalidate(ctx, texObj);
1251 }
1252
1253
1254 #else /* FX */
1255
1256 /*
1257  * Need this to provide at least one external definition.
1258  */
1259
1260 extern int gl_fx_dummy_function_ddtex(void);
1261 int
1262 gl_fx_dummy_function_ddtex(void)
1263 {
1264    return 0;
1265 }
1266
1267 #endif /* FX */