summaryrefslogtreecommitdiff
path: root/src/mesa/drivers/glide/fxtexman.c
blob: 3944ea2ef6ce21495cb0318a5640a21005c80d90 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746

/*
 * Mesa 3-D graphics library
 * Version:  3.3
 *
 * Copyright (C) 1999-2000  Brian Paul   All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 *
 * Original Mesa / 3Dfx device driver (C) 1999 David Bucciarelli, by the
 * terms stated above.
 *
 * Thank you for your contribution, David!
 *
 * Please make note of the above copyright/license statement.  If you
 * contributed code or bug fixes to this code under the previous (GNU
 * Library) license and object to the new license, your code will be
 * removed at your request.  Please see the Mesa docs/COPYRIGHT file
 * for more information.
 *
 * Additional Mesa/3Dfx driver developers:
 *   Daryll Strauss <daryll@precisioninsight.com>
 *   Keith Whitwell <keith@precisioninsight.com>
 *
 * See fxapi.h for more revision/author details.
 */


/* fxtexman.c - 3Dfx VooDoo texture memory functions */


#ifdef HAVE_CONFIG_H
#include "conf.h"
#endif

#if defined(FX)

#include "fxdrv.h"

int texSwaps=0;

#define FX_2MB_SPLIT 0x200000

static struct gl_texture_object *fxTMFindOldestObject(fxMesaContext fxMesa,
						      int tmu);


#ifdef TEXSANITY
static void fubar()
{
}

  /* Sanity Check */
static void sanity(fxMesaContext fxMesa)
{
  MemRange *tmp, *prev, *pos;

  prev=0;
  tmp = fxMesa->tmFree[0];
  while (tmp) {
    if (!tmp->startAddr && !tmp->endAddr) {
      fprintf(stderr, "Textures fubar\n");
      fubar();
    }
    if (tmp->startAddr>=tmp->endAddr) {
      fprintf(stderr, "Node fubar\n");
      fubar();
    }
    if (prev && (prev->startAddr>=tmp->startAddr || 
	prev->endAddr>tmp->startAddr)) {
      fprintf(stderr, "Sorting fubar\n");
      fubar();
    }
    prev=tmp;
    tmp=tmp->next;
  }
  prev=0;
  tmp = fxMesa->tmFree[1];
  while (tmp) {
    if (!tmp->startAddr && !tmp->endAddr) {
      fprintf(stderr, "Textures fubar\n");
      fubar();
    }
    if (tmp->startAddr>=tmp->endAddr) {
      fprintf(stderr, "Node fubar\n");
      fubar();
    }
    if (prev && (prev->startAddr>=tmp->startAddr || 
	prev->endAddr>tmp->startAddr)) {
      fprintf(stderr, "Sorting fubar\n");
      fubar();
    }
    prev=tmp;
    tmp=tmp->next;
  }
}
#endif

static MemRange *fxTMNewRangeNode(fxMesaContext fxMesa, FxU32 start, FxU32 end) {
  MemRange *result=0;

  if (fxMesa->tmPool) {
    result=fxMesa->tmPool;
    fxMesa->tmPool=fxMesa->tmPool->next;
  } else {
    if (!(result=MALLOC(sizeof(MemRange)))) {
      fprintf(stderr, "fxDriver: out of memory!\n");
      fxCloseHardware();
      exit(-1);
    }
  }
  result->startAddr=start;
  result->endAddr=end;
  return result;
}

static void fxTMDeleteRangeNode(fxMesaContext fxMesa, MemRange *range)
{
  range->next=fxMesa->tmPool;
  fxMesa->tmPool=range;
}

static void fxTMUInit(fxMesaContext fxMesa, int tmu)
{
  MemRange *tmn, *last;
  FxU32 start,end,blockstart,blockend;

  start=FX_grTexMinAddress(tmu);
  end=FX_grTexMaxAddress(tmu);

  if(fxMesa->verbose) {
    fprintf(stderr,"Voodoo %s configuration:",(tmu==FX_TMU0) ? "TMU0" : "TMU1");
    fprintf(stderr,"Voodoo  Lower texture memory address (%u)\n",(unsigned int)start);
    fprintf(stderr,"Voodoo  Higher texture memory address (%u)\n",(unsigned int)end);
    fprintf(stderr,"Voodoo  Splitting Texture memory in 2b blocks:\n");
  }

  fxMesa->freeTexMem[tmu]=end-start;
  fxMesa->tmFree[tmu]=NULL;

  last=0;
  blockstart=start;
  while (blockstart<end) {
    if (blockstart+FX_2MB_SPLIT>end) blockend=end;
    else blockend=blockstart+FX_2MB_SPLIT;

    if(fxMesa->verbose)
      fprintf(stderr,"Voodoo    %07u-%07u\n",
	      (unsigned int)blockstart,(unsigned int)blockend);

    tmn=fxTMNewRangeNode(fxMesa, blockstart, blockend);
    tmn->next=0;

    if (last) last->next=tmn;
    else fxMesa->tmFree[tmu]=tmn;
    last=tmn;

    blockstart+=FX_2MB_SPLIT;
  }
}

static int fxTMFindStartAddr(fxMesaContext fxMesa, GLint tmu, int size)
{
  MemRange *prev, *tmp;
  int result;
  struct gl_texture_object *obj;

  while (1) {
    prev=0;
    tmp=fxMesa->tmFree[tmu];
    while (tmp) {
      if (tmp->endAddr-tmp->startAddr>=size) { /* Fits here */
	result=tmp->startAddr;
	tmp->startAddr+=size;
	if (tmp->startAddr==tmp->endAddr) { /* Empty */
	  if (prev) {
	    prev->next=tmp->next;
	  } else {
	    fxMesa->tmFree[tmu]=tmp->next;
	  }
	  fxTMDeleteRangeNode(fxMesa, tmp);
	}
	fxMesa->freeTexMem[tmu]-=size;
	return result;
      }
      prev=tmp;
      tmp=tmp->next;
    }
    /* No free space. Discard oldest */
    obj=fxTMFindOldestObject(fxMesa, tmu);
    if (!obj) {
      fprintf(stderr, "fx Driver: No space for texture\n");
      return -1;
    }
    fxTMMoveOutTM(fxMesa, obj);
    texSwaps++;
  }
}

static void fxTMRemoveRange(fxMesaContext fxMesa, GLint tmu, MemRange *range)
{
  MemRange *tmp, *prev;

  if (range->startAddr==range->endAddr) {
    fxTMDeleteRangeNode(fxMesa, range);
    return;
  }
  fxMesa->freeTexMem[tmu]+=range->endAddr-range->startAddr;
  prev=0;
  tmp=fxMesa->tmFree[tmu];
  while (tmp) {
    if (range->startAddr>tmp->startAddr) {
      prev=tmp;
      tmp=tmp->next;
    } else break;
  }
  /* When we create the regions, we make a split at the 2MB boundary.
     Now we have to make sure we don't join those 2MB boundary regions
     back together again. */
  range->next=tmp;
  if (tmp) {
    if (range->endAddr==tmp->startAddr && tmp->startAddr&(FX_2MB_SPLIT-1)) { 
      /* Combine */
      tmp->startAddr=range->startAddr;
      fxTMDeleteRangeNode(fxMesa, range);
      range=tmp;
    }
  }
  if (prev) {
    if (prev->endAddr==range->startAddr && range->startAddr&(FX_2MB_SPLIT-1)) { 
      /* Combine */
      prev->endAddr=range->endAddr;
      prev->next=range->next;
      fxTMDeleteRangeNode(fxMesa, range);
    } else prev->next=range;
  } else {
    fxMesa->tmFree[tmu]=range;
  }
}

static struct gl_texture_object *fxTMFindOldestObject(fxMesaContext fxMesa,
						      int tmu)
{
  GLuint age, old, lasttime, bindnumber;
  tfxTexInfo *info;
  struct gl_texture_object *obj, *tmp;

  tmp=fxMesa->glCtx->Shared->TexObjectList;
  if (!tmp) return 0;
  obj=0;
  old=0;

  bindnumber=fxMesa->texBindNumber;
  while (tmp) {
    info=fxTMGetTexInfo(tmp);

    if (info && info->isInTM &&
	((info->whichTMU==tmu) || (info->whichTMU==FX_TMU_BOTH) || 
	(info->whichTMU==FX_TMU_SPLIT))) {
      lasttime=info->lastTimeUsed;

      if (lasttime>bindnumber)
	age=bindnumber+(UINT_MAX-lasttime+1); /* TO DO: check wrap around */
      else
	age=bindnumber-lasttime;

      if (age>=old) {
	old=age;
	obj=tmp;
      }
    }
    tmp=tmp->Next;
  }
  return obj;
}

static MemRange *fxTMAddObj(fxMesaContext fxMesa, 
			    struct gl_texture_object *tObj,
			    GLint tmu, int texmemsize)
{
  FxU32 startAddr;
  MemRange *range;

  startAddr=fxTMFindStartAddr(fxMesa, tmu, texmemsize);
  if (startAddr<0) return 0;
  range=fxTMNewRangeNode(fxMesa, startAddr, startAddr+texmemsize);
  return range;
}

/* External Functions */

void fxTMMoveInTM_NoLock(fxMesaContext fxMesa, struct gl_texture_object *tObj, GLint where)
{
  tfxTexInfo *ti=fxTMGetTexInfo(tObj);
  int i,l;
  int texmemsize;

  if (MESA_VERBOSE&VERBOSE_DRIVER) {
     fprintf(stderr,"fxmesa: fxTMMoveInTM(%d)\n",tObj->Name);
  }

  fxMesa->stats.reqTexUpload++;

  if (!ti->validated) {
    fprintf(stderr,"fx Driver: internal error in fxTMMoveInTM() -> not validated\n");
    fxCloseHardware();
    exit(-1);
  }

  if (ti->isInTM) {
    if (ti->whichTMU==where) return;
    if (where==FX_TMU_SPLIT || ti->whichTMU==FX_TMU_SPLIT)
      fxTMMoveOutTM_NoLock(fxMesa, tObj);
    else {
      if (ti->whichTMU==FX_TMU_BOTH) return;
      where=FX_TMU_BOTH;
    }
  }

  if (MESA_VERBOSE&(VERBOSE_DRIVER|VERBOSE_TEXTURE)) {
     fprintf(stderr,"fxmesa: downloading %x (%d) in texture memory in %d\n",(GLuint)tObj,tObj->Name,where);
  }

  ti->whichTMU=(FxU32)where;

  switch (where) {
  case FX_TMU0:
  case FX_TMU1:
    texmemsize=(int)FX_grTexTextureMemRequired_NoLock(GR_MIPMAPLEVELMASK_BOTH,
						      &(ti->info));
    ti->tm[where]=fxTMAddObj(fxMesa, tObj, where, texmemsize);
    fxMesa->stats.memTexUpload+=texmemsize;

    for (i=FX_largeLodValue(ti->info), l=ti->minLevel;
	 i<=FX_smallLodValue(ti->info);
	 i++,l++)
      FX_grTexDownloadMipMapLevel_NoLock(where,
					 ti->tm[where]->startAddr,
					 FX_valueToLod(i),
					 FX_largeLodLog2(ti->info),
					 FX_aspectRatioLog2(ti->info),
					 ti->info.format,
					 GR_MIPMAPLEVELMASK_BOTH,
					 ti->mipmapLevel[l].data);
    break;
  case FX_TMU_SPLIT: 
    texmemsize=(int)FX_grTexTextureMemRequired_NoLock(GR_MIPMAPLEVELMASK_ODD,
						      &(ti->info));
    ti->tm[FX_TMU0]=fxTMAddObj(fxMesa, tObj, FX_TMU0, texmemsize);
    fxMesa->stats.memTexUpload+=texmemsize;

    texmemsize=(int)FX_grTexTextureMemRequired_NoLock(GR_MIPMAPLEVELMASK_EVEN,
						      &(ti->info));
    ti->tm[FX_TMU1]=fxTMAddObj(fxMesa, tObj, FX_TMU1, texmemsize);
    fxMesa->stats.memTexUpload+=texmemsize;

    for (i=FX_largeLodValue(ti->info),l=ti->minLevel;
	 i<=FX_smallLodValue(ti->info);
	 i++,l++) {
      FX_grTexDownloadMipMapLevel_NoLock(GR_TMU0,
					 ti->tm[FX_TMU0]->startAddr,
					 FX_valueToLod(i),
					 FX_largeLodLog2(ti->info),
					 FX_aspectRatioLog2(ti->info),
					 ti->info.format,
					 GR_MIPMAPLEVELMASK_ODD,
					 ti->mipmapLevel[l].data);

      FX_grTexDownloadMipMapLevel_NoLock(GR_TMU1,
					 ti->tm[FX_TMU1]->startAddr,
					 FX_valueToLod(i),
					 FX_largeLodLog2(ti->info),
					 FX_aspectRatioLog2(ti->info),
					 ti->info.format,
					 GR_MIPMAPLEVELMASK_EVEN,
					 ti->mipmapLevel[l].data);
    }
    break;
  case FX_TMU_BOTH:
    texmemsize=(int)FX_grTexTextureMemRequired_NoLock(GR_MIPMAPLEVELMASK_BOTH,
						      &(ti->info));
    ti->tm[FX_TMU0]=fxTMAddObj(fxMesa, tObj, FX_TMU0, texmemsize);
    fxMesa->stats.memTexUpload+=texmemsize;

    texmemsize=(int)FX_grTexTextureMemRequired_NoLock(GR_MIPMAPLEVELMASK_BOTH,
						      &(ti->info));
    ti->tm[FX_TMU1]=fxTMAddObj(fxMesa, tObj, FX_TMU1, texmemsize);
    fxMesa->stats.memTexUpload+=texmemsize;

    for (i=FX_largeLodValue(ti->info),l=ti->minLevel;
	 i<=FX_smallLodValue(ti->info);
	 i++,l++) {
      FX_grTexDownloadMipMapLevel_NoLock(GR_TMU0,
					 ti->tm[FX_TMU0]->startAddr,
					 FX_valueToLod(i),
					 FX_largeLodLog2(ti->info),
					 FX_aspectRatioLog2(ti->info),
					 ti->info.format,
					 GR_MIPMAPLEVELMASK_BOTH,
					 ti->mipmapLevel[l].data);

      FX_grTexDownloadMipMapLevel_NoLock(GR_TMU1,
					 ti->tm[FX_TMU1]->startAddr,
					 FX_valueToLod(i),
					 FX_largeLodLog2(ti->info),
					 FX_aspectRatioLog2(ti->info),
					 ti->info.format,
					 GR_MIPMAPLEVELMASK_BOTH,
					 ti->mipmapLevel[l].data);
    }
    break;
  default:
    fprintf(stderr,"fx Driver: internal error in fxTMMoveInTM() -> wrong tmu (%d)\n",where);
    fxCloseHardware();
    exit(-1);
  }

  fxMesa->stats.texUpload++;

  ti->isInTM=GL_TRUE;
}

void fxTMMoveInTM(fxMesaContext fxMesa, struct gl_texture_object *tObj, GLint where) {
  BEGIN_BOARD_LOCK();
  fxTMMoveInTM_NoLock(fxMesa, tObj, where);
  END_BOARD_LOCK();
}

void fxTMReloadMipMapLevel(fxMesaContext fxMesa, struct gl_texture_object *tObj, GLint level)
{
  tfxTexInfo *ti=fxTMGetTexInfo(tObj);
  GrLOD_t lodlevel;
  GLint tmu;

  if (!ti->validated) {
    fprintf(stderr,"fx Driver: internal error in fxTMReloadMipMapLevel() -> not validated\n");
    fxCloseHardware();
    exit(-1);
  }

  tmu=(int)ti->whichTMU;
  fxTMMoveInTM(fxMesa, tObj, tmu);

  fxTexGetInfo(ti->mipmapLevel[0].width,ti->mipmapLevel[0].height,
	       &lodlevel, NULL, NULL, NULL, NULL, NULL, NULL, NULL);

#ifdef FX_GLIDE3
  lodlevel-=level;
#else
  lodlevel+=level;
#endif
  switch(tmu) {
  case FX_TMU0:
  case FX_TMU1:
    FX_grTexDownloadMipMapLevel(tmu,
				ti->tm[tmu]->startAddr,
				FX_valueToLod(FX_lodToValue(lodlevel)),
				FX_largeLodLog2(ti->info),
				FX_aspectRatioLog2(ti->info),
				ti->info.format,
				GR_MIPMAPLEVELMASK_BOTH,
				ti->mipmapLevel[level].data);
    break;
  case FX_TMU_SPLIT:
    FX_grTexDownloadMipMapLevel(GR_TMU0,
				ti->tm[GR_TMU0]->startAddr,
				FX_valueToLod(FX_lodToValue(lodlevel)),
				FX_largeLodLog2(ti->info),
				FX_aspectRatioLog2(ti->info),
				ti->info.format,
				GR_MIPMAPLEVELMASK_ODD,
				ti->mipmapLevel[level].data);
    
    FX_grTexDownloadMipMapLevel(GR_TMU1,
				ti->tm[GR_TMU1]->startAddr,
				FX_valueToLod(FX_lodToValue(lodlevel)),
				FX_largeLodLog2(ti->info),
				FX_aspectRatioLog2(ti->info),
				ti->info.format,
				GR_MIPMAPLEVELMASK_EVEN,
				ti->mipmapLevel[level].data);
    break;
  case FX_TMU_BOTH:
    FX_grTexDownloadMipMapLevel(GR_TMU0,
				ti->tm[GR_TMU0]->startAddr,
				FX_valueToLod(FX_lodToValue(lodlevel)),
				FX_largeLodLog2(ti->info),
				FX_aspectRatioLog2(ti->info),
				ti->info.format,
				GR_MIPMAPLEVELMASK_BOTH,
				ti->mipmapLevel[level].data);
    
    FX_grTexDownloadMipMapLevel(GR_TMU1,
				ti->tm[GR_TMU1]->startAddr,
				FX_valueToLod(FX_lodToValue(lodlevel)),
				FX_largeLodLog2(ti->info),
				FX_aspectRatioLog2(ti->info),
				ti->info.format,
				GR_MIPMAPLEVELMASK_BOTH,
				ti->mipmapLevel[level].data);
    break;

  default:
    fprintf(stderr,"fx Driver: internal error in fxTMReloadMipMapLevel() -> wrong tmu (%d)\n",tmu);
    fxCloseHardware();
    exit(-1);
  }
}

void fxTMReloadSubMipMapLevel(fxMesaContext fxMesa, 
			      struct gl_texture_object *tObj,
			      GLint level, GLint yoffset, GLint height)
{
  tfxTexInfo *ti=fxTMGetTexInfo(tObj);
  GrLOD_t lodlevel;
  unsigned short *data;
  GLint tmu;

  if(!ti->validated) {
    fprintf(stderr,"fx Driver: internal error in fxTMReloadSubMipMapLevel() -> not validated\n");
    fxCloseHardware();
    exit(-1);
  }

  tmu=(int)ti->whichTMU;
  fxTMMoveInTM(fxMesa, tObj, tmu);

  fxTexGetInfo(ti->mipmapLevel[0].width, ti->mipmapLevel[0].height,
	       &lodlevel, NULL, NULL, NULL, NULL, NULL, NULL, NULL);

  if((ti->info.format==GR_TEXFMT_INTENSITY_8) ||
     (ti->info.format==GR_TEXFMT_P_8) ||
     (ti->info.format==GR_TEXFMT_ALPHA_8))
    data=ti->mipmapLevel[level].data+((yoffset*ti->mipmapLevel[level].width)>>1);
  else
    data=ti->mipmapLevel[level].data+yoffset*ti->mipmapLevel[level].width;

  switch(tmu) {
  case FX_TMU0:
  case FX_TMU1:
    FX_grTexDownloadMipMapLevelPartial(tmu,
				       ti->tm[tmu]->startAddr,
				       FX_valueToLod(FX_lodToValue(lodlevel)+level),
				       FX_largeLodLog2(ti->info),
				       FX_aspectRatioLog2(ti->info),
				       ti->info.format,
				       GR_MIPMAPLEVELMASK_BOTH,
				       data,
				       yoffset,yoffset+height-1);
    break;
  case FX_TMU_SPLIT:
    FX_grTexDownloadMipMapLevelPartial(GR_TMU0,
				       ti->tm[FX_TMU0]->startAddr,
				       FX_valueToLod(FX_lodToValue(lodlevel)+level),
				       FX_largeLodLog2(ti->info),
				       FX_aspectRatioLog2(ti->info),
				       ti->info.format,
				       GR_MIPMAPLEVELMASK_ODD,
				       data,
				       yoffset,yoffset+height-1);

    FX_grTexDownloadMipMapLevelPartial(GR_TMU1,
				       ti->tm[FX_TMU1]->startAddr,
				       FX_valueToLod(FX_lodToValue(lodlevel)+level),
				       FX_largeLodLog2(ti->info),
				       FX_aspectRatioLog2(ti->info),
				       ti->info.format,
				       GR_MIPMAPLEVELMASK_EVEN,
				       data,
				       yoffset,yoffset+height-1);
    break;
  case FX_TMU_BOTH:
    FX_grTexDownloadMipMapLevelPartial(GR_TMU0,
				       ti->tm[FX_TMU0]->startAddr,
				       FX_valueToLod(FX_lodToValue(lodlevel)+level),
				       FX_largeLodLog2(ti->info),
				       FX_aspectRatioLog2(ti->info),
				       ti->info.format,
				       GR_MIPMAPLEVELMASK_BOTH,
				       data,
				       yoffset,yoffset+height-1);

    FX_grTexDownloadMipMapLevelPartial(GR_TMU1,
				       ti->tm[FX_TMU1]->startAddr,
				       FX_valueToLod(FX_lodToValue(lodlevel)+level),
				       FX_largeLodLog2(ti->info),
				       FX_aspectRatioLog2(ti->info),
				       ti->info.format,
				       GR_MIPMAPLEVELMASK_BOTH,
				       data,
				       yoffset,yoffset+height-1);
    break;
  default:
    fprintf(stderr,"fx Driver: internal error in fxTMReloadSubMipMapLevel() -> wrong tmu (%d)\n",tmu);
    fxCloseHardware();
    exit(-1);
  }
}

void fxTMMoveOutTM(fxMesaContext fxMesa, struct gl_texture_object *tObj)
{
  tfxTexInfo *ti=fxTMGetTexInfo(tObj);

  if (MESA_VERBOSE&VERBOSE_DRIVER) {
     fprintf(stderr,"fxmesa: fxTMMoveOutTM(%x (%d))\n",(GLuint)tObj,tObj->Name);
  }

  if (!ti->isInTM)  return;

  switch(ti->whichTMU) {
  case FX_TMU0:
  case FX_TMU1:
    fxTMRemoveRange(fxMesa, (int)ti->whichTMU, ti->tm[ti->whichTMU]);
    break;
  case FX_TMU_SPLIT:
  case FX_TMU_BOTH:
    fxTMRemoveRange(fxMesa, FX_TMU0, ti->tm[FX_TMU0]);
    fxTMRemoveRange(fxMesa, FX_TMU1, ti->tm[FX_TMU1]);
    break;
  default:
    fprintf(stderr,"fx Driver: internal error in fxTMMoveOutTM()\n");
    fxCloseHardware();
    exit(-1);
  }

  ti->isInTM=GL_FALSE;
  ti->whichTMU=FX_TMU_NONE;
}

void fxTMFreeTexture(fxMesaContext fxMesa, struct gl_texture_object *tObj)
{
  tfxTexInfo *ti=fxTMGetTexInfo(tObj);
  int i;

  fxTMMoveOutTM(fxMesa, tObj);

  for (i=0; i<MAX_TEXTURE_LEVELS; i++) {
    if (ti->mipmapLevel[i].data) {
      FREE(ti->mipmapLevel[i].data);
      ti->mipmapLevel[i].data = NULL;
    }
  }
  switch (ti->whichTMU) {
  case FX_TMU0:
  case FX_TMU1:
    fxTMDeleteRangeNode(fxMesa, ti->tm[ti->whichTMU]);
    break;
  case FX_TMU_SPLIT:
  case FX_TMU_BOTH:
    fxTMDeleteRangeNode(fxMesa, ti->tm[FX_TMU0]);
    fxTMDeleteRangeNode(fxMesa, ti->tm[FX_TMU1]);
    break;
  }
}

void fxTMInit(fxMesaContext fxMesa)
{
  fxMesa->texBindNumber=0;
  fxMesa->tmPool=0;

  fxTMUInit(fxMesa,FX_TMU0);

  if(fxMesa->haveTwoTMUs)
    fxTMUInit(fxMesa,FX_TMU1);
}

void fxTMClose(fxMesaContext fxMesa)
{
  MemRange *tmp, *next;

  tmp=fxMesa->tmPool;
  while (tmp) {
    next=tmp->next;
    FREE(tmp);
    tmp=next;
  }
  tmp=fxMesa->tmFree[FX_TMU0];
  while (tmp) {
    next=tmp->next;
    FREE(tmp);
    tmp=next;
  }
  if (fxMesa->haveTwoTMUs) {
    tmp=fxMesa->tmFree[FX_TMU1];
    while (tmp) {
      next=tmp->next;
      FREE(tmp);
      tmp=next;
    }
  }
}

void
fxTMRestoreTextures_NoLock(fxMesaContext ctx) {
  tfxTexInfo *ti;
  struct gl_texture_object *tObj;
  int i, where;

  tObj=ctx->glCtx->Shared->TexObjectList;
  while (tObj) {
    ti=fxTMGetTexInfo(tObj);
    if (ti && ti->isInTM) {
      for (i=0; i<MAX_TEXTURE_UNITS; i++)
	if (ctx->glCtx->Texture.Unit[i]._Current==tObj) {
	  /* Force the texture onto the board, as it could be in use */
	  where=ti->whichTMU;
	  fxTMMoveOutTM_NoLock(ctx, tObj);
	  fxTMMoveInTM_NoLock(ctx, tObj, where);
	  break;
	}
      if (i==MAX_TEXTURE_UNITS) /* Mark the texture as off the board */
	fxTMMoveOutTM_NoLock(ctx, tObj);
    }
    tObj=tObj->Next;
  }
}

#else


/*
 * Need this to provide at least one external definition.
 */

int gl_fx_dummy_function_texman(void)
{
  return 0;
}

#endif  /* FX */