-
Notifications
You must be signed in to change notification settings - Fork 0
/
gl_textures.c
1529 lines (1399 loc) · 52.3 KB
/
gl_textures.c
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
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
#include "quakedef.h"
#include "image.h"
#include "jpeg.h"
#include "image_png.h"
#include "intoverflow.h"
cvar_t gl_max_size = {CVAR_SAVE, "gl_max_size", "2048", "maximum allowed texture size, can be used to reduce video memory usage, limited by hardware capabilities (typically 2048, 4096, or 8192)"};
cvar_t gl_max_lightmapsize = {CVAR_SAVE, "gl_max_lightmapsize", "1024", "maximum allowed texture size for lightmap textures, use larger values to improve rendering speed, as long as there is enough video memory available (setting it too high for the hardware will cause very bad performance)"};
cvar_t gl_picmip = {CVAR_SAVE, "gl_picmip", "0", "reduces resolution of textures by powers of 2, for example 1 will halve width/height, reducing texture memory usage by 75%"};
cvar_t r_lerpimages = {CVAR_SAVE, "r_lerpimages", "1", "bilinear filters images when scaling them up to power of 2 size (mode 1), looks better than glquake (mode 0)"};
cvar_t gl_texture_anisotropy = {CVAR_SAVE, "gl_texture_anisotropy", "1", "anisotropic filtering quality (if supported by hardware), 1 sample (no anisotropy) and 8 sample (8 tap anisotropy) are recommended values"};
cvar_t gl_texturecompression = {CVAR_SAVE, "gl_texturecompression", "0", "whether to compress textures, a value of 0 disables compression (even if the individual cvars are 1), 1 enables fast (low quality) compression at startup, 2 enables slow (high quality) compression at startup"};
cvar_t gl_texturecompression_color = {CVAR_SAVE, "gl_texturecompression_color", "1", "whether to compress colormap (diffuse) textures"};
cvar_t gl_texturecompression_normal = {CVAR_SAVE, "gl_texturecompression_normal", "0", "whether to compress normalmap (normalmap) textures"};
cvar_t gl_texturecompression_gloss = {CVAR_SAVE, "gl_texturecompression_gloss", "1", "whether to compress glossmap (specular) textures"};
cvar_t gl_texturecompression_glow = {CVAR_SAVE, "gl_texturecompression_glow", "1", "whether to compress glowmap (luma) textures"};
cvar_t gl_texturecompression_2d = {CVAR_SAVE, "gl_texturecompression_2d", "0", "whether to compress 2d (hud/menu) textures other than the font"};
cvar_t gl_texturecompression_q3bsplightmaps = {CVAR_SAVE, "gl_texturecompression_q3bsplightmaps", "0", "whether to compress lightmaps in q3bsp format levels"};
cvar_t gl_texturecompression_q3bspdeluxemaps = {CVAR_SAVE, "gl_texturecompression_q3bspdeluxemaps", "0", "whether to compress deluxemaps in q3bsp format levels (only levels compiled with q3map2 -deluxe have these)"};
cvar_t gl_texturecompression_sky = {CVAR_SAVE, "gl_texturecompression_sky", "0", "whether to compress sky textures"};
cvar_t gl_texturecompression_lightcubemaps = {CVAR_SAVE, "gl_texturecompression_lightcubemaps", "1", "whether to compress light cubemaps (spotlights and other light projection images)"};
cvar_t gl_texturecompression_reflectmask = {CVAR_SAVE, "gl_texturecompression_reflectmask", "1", "whether to compress reflection cubemap masks (mask of which areas of the texture should reflect the generic shiny cubemap)"};
cvar_t gl_nopartialtextureupdates = {CVAR_SAVE, "gl_nopartialtextureupdates", "1", "use alternate path for dynamic lightmap updates that avoids a possibly slow code path in the driver"};
qboolean gl_filter_force = false;
int gl_filter_min = GL_LINEAR_MIPMAP_LINEAR;
int gl_filter_mag = GL_LINEAR;
static mempool_t *texturemempool;
static memexpandablearray_t texturearray;
// note: this must not conflict with TEXF_ flags in r_textures.h
// bitmask for mismatch checking
#define GLTEXF_IMPORTANTBITS (0)
// dynamic texture (treat texnum == 0 differently)
#define GLTEXF_DYNAMIC 0x00080000
typedef struct textypeinfo_s
{
textype_t textype;
int inputbytesperpixel;
int internalbytesperpixel;
float glinternalbytesperpixel;
int glinternalformat;
int glformat;
int gltype;
}
textypeinfo_t;
static textypeinfo_t textype_palette = {TEXTYPE_PALETTE , 1, 4, 4.0f, 3 , GL_BGRA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_palette_alpha = {TEXTYPE_PALETTE , 1, 4, 4.0f, 4 , GL_BGRA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_rgba = {TEXTYPE_RGBA , 4, 4, 4.0f, 3 , GL_RGBA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_rgba_alpha = {TEXTYPE_RGBA , 4, 4, 4.0f, 4 , GL_RGBA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_rgba_compress = {TEXTYPE_RGBA , 4, 4, 0.5f, GL_COMPRESSED_RGB_S3TC_DXT1_EXT , GL_RGBA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_rgba_alpha_compress = {TEXTYPE_RGBA , 4, 4, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_RGBA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_bgra = {TEXTYPE_BGRA , 4, 4, 4.0f, 3 , GL_BGRA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_bgra_alpha = {TEXTYPE_BGRA , 4, 4, 4.0f, 4 , GL_BGRA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_bgra_compress = {TEXTYPE_BGRA , 4, 4, 0.5f, GL_COMPRESSED_RGB_S3TC_DXT1_EXT , GL_BGRA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_bgra_alpha_compress = {TEXTYPE_BGRA , 4, 4, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, GL_BGRA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_shadowmap16 = {TEXTYPE_SHADOWMAP , 2, 2, 2.0f, GL_DEPTH_COMPONENT16_ARB , GL_DEPTH_COMPONENT, GL_UNSIGNED_SHORT};
static textypeinfo_t textype_shadowmap24 = {TEXTYPE_SHADOWMAP , 4, 4, 4.0f, GL_DEPTH_COMPONENT24_ARB , GL_DEPTH_COMPONENT, GL_UNSIGNED_INT };
static textypeinfo_t textype_alpha = {TEXTYPE_ALPHA , 1, 4, 4.0f, GL_ALPHA , GL_ALPHA , GL_UNSIGNED_BYTE };
static textypeinfo_t textype_dxt1 = {TEXTYPE_DXT1 , 4, 0, 0.5f, GL_COMPRESSED_RGB_S3TC_DXT1_EXT , 0 , 0 };
static textypeinfo_t textype_dxt1a = {TEXTYPE_DXT1A , 4, 0, 0.5f, GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 , 0 };
static textypeinfo_t textype_dxt3 = {TEXTYPE_DXT3 , 4, 0, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 , 0 };
static textypeinfo_t textype_dxt5 = {TEXTYPE_DXT5 , 4, 0, 1.0f, GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 , 0 };
static textypeinfo_t textype_colorbuffer = {TEXTYPE_COLORBUFFER, 4, 4, 4.0f, 4 , GL_BGRA , GL_UNSIGNED_BYTE };
typedef enum gltexturetype_e
{
GLTEXTURETYPE_2D,
GLTEXTURETYPE_3D,
GLTEXTURETYPE_CUBEMAP,
GLTEXTURETYPE_RECTANGLE,
GLTEXTURETYPE_TOTAL
}
gltexturetype_t;
static int gltexturetypeenums[GLTEXTURETYPE_TOTAL] = {GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB, GL_TEXTURE_RECTANGLE_ARB};
static int gltexturetypedimensions[GLTEXTURETYPE_TOTAL] = {2, 3, 2, 2};
static int cubemapside[6] =
{
GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB,
GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB,
GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB,
GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
};
typedef struct gltexture_s
{
// this portion of the struct is exposed to the R_GetTexture macro for
// speed reasons, must be identical in rtexture_t!
int texnum; // GL texture slot number
qboolean dirty; // indicates that R_RealGetTexture should be called
int gltexturetypeenum; // used by R_Mesh_TexBind
// dynamic texture stuff [11/22/2007 Black]
updatecallback_t updatecallback;
void *updatacallback_data;
// --- [11/22/2007 Black]
// stores backup copy of texture for deferred texture updates (gl_nopartialtextureupdates cvar)
unsigned char *bufferpixels;
qboolean buffermodified;
// pointer to texturepool (check this to see if the texture is allocated)
struct gltexturepool_s *pool;
// pointer to next texture in texturepool chain
struct gltexture_s *chain;
// name of the texture (this might be removed someday), no duplicates
char identifier[MAX_QPATH + 32];
// original data size in *inputtexels
int inputwidth, inputheight, inputdepth;
// copy of the original texture(s) supplied to the upload function, for
// delayed uploads (non-precached)
unsigned char *inputtexels;
// original data size in *inputtexels
int inputdatasize;
// flags supplied to the LoadTexture function
// (might be altered to remove TEXF_ALPHA), and GLTEXF_ private flags
int flags;
// pointer to one of the textype_ structs
textypeinfo_t *textype;
// one of the GLTEXTURETYPE_ values
int texturetype;
// palette if the texture is TEXTYPE_PALETTE
const unsigned int *palette;
// actual stored texture size after gl_picmip and gl_max_size are applied
// (power of 2 if vid.support.arb_texture_non_power_of_two is not supported)
int tilewidth, tileheight, tiledepth;
// 1 or 6 depending on texturetype
int sides;
// bytes per pixel
int bytesperpixel;
// GL_RGB or GL_RGBA or GL_DEPTH_COMPONENT
int glformat;
// 3 or 4
int glinternalformat;
// GL_UNSIGNED_BYTE or GL_UNSIGNED_INT or GL_UNSIGNED_SHORT or GL_FLOAT
int gltype;
}
gltexture_t;
#define TEXTUREPOOL_SENTINEL 0xC0DEDBAD
typedef struct gltexturepool_s
{
unsigned int sentinel;
struct gltexture_s *gltchain;
struct gltexturepool_s *next;
}
gltexturepool_t;
static gltexturepool_t *gltexturepoolchain = NULL;
static unsigned char *resizebuffer = NULL, *colorconvertbuffer;
static int resizebuffersize = 0;
static const unsigned char *texturebuffer;
static textypeinfo_t *R_GetTexTypeInfo(textype_t textype, int flags)
{
switch(textype)
{
case TEXTYPE_DXT1:
return &textype_dxt1;
case TEXTYPE_DXT1A:
return &textype_dxt1a;
case TEXTYPE_DXT3:
return &textype_dxt3;
case TEXTYPE_DXT5:
return &textype_dxt5;
case TEXTYPE_PALETTE:
return (flags & TEXF_ALPHA) ? &textype_palette_alpha : &textype_palette;
case TEXTYPE_RGBA:
if ((flags & TEXF_COMPRESS) && gl_texturecompression.integer >= 1 && vid.support.arb_texture_compression)
return (flags & TEXF_ALPHA) ? &textype_rgba_alpha_compress : &textype_rgba_compress;
return (flags & TEXF_ALPHA) ? &textype_rgba_alpha : &textype_rgba;
case TEXTYPE_BGRA:
if ((flags & TEXF_COMPRESS) && gl_texturecompression.integer >= 1 && vid.support.arb_texture_compression)
return (flags & TEXF_ALPHA) ? &textype_bgra_alpha_compress : &textype_bgra_compress;
return (flags & TEXF_ALPHA) ? &textype_bgra_alpha : &textype_bgra;
case TEXTYPE_ALPHA:
return &textype_alpha;
case TEXTYPE_SHADOWMAP:
return (flags & TEXF_LOWPRECISION) ? &textype_shadowmap16 : &textype_shadowmap24;
case TEXTYPE_COLORBUFFER:
return &textype_colorbuffer;
default:
Host_Error("R_GetTexTypeInfo: unknown texture format");
break;
}
return NULL;
}
// dynamic texture code [11/22/2007 Black]
void R_MarkDirtyTexture(rtexture_t *rt) {
gltexture_t *glt = (gltexture_t*) rt;
if( !glt ) {
return;
}
// dont do anything if the texture is already dirty (and make sure this *is* a dynamic texture after all!)
if (glt->flags & GLTEXF_DYNAMIC)
{
// mark it as dirty, so R_RealGetTexture gets called
glt->dirty = true;
}
}
void R_MakeTextureDynamic(rtexture_t *rt, updatecallback_t updatecallback, void *data) {
gltexture_t *glt = (gltexture_t*) rt;
if( !glt ) {
return;
}
glt->flags |= GLTEXF_DYNAMIC;
glt->updatecallback = updatecallback;
glt->updatacallback_data = data;
}
static void R_UpdateDynamicTexture(gltexture_t *glt) {
glt->dirty = false;
if( glt->updatecallback ) {
glt->updatecallback( (rtexture_t*) glt, glt->updatacallback_data );
}
}
void R_PurgeTexture(rtexture_t *rt)
{
if(rt && !(((gltexture_t*) rt)->flags & TEXF_PERSISTENT)) {
R_FreeTexture(rt);
}
}
void R_FreeTexture(rtexture_t *rt)
{
gltexture_t *glt, **gltpointer;
glt = (gltexture_t *)rt;
if (glt == NULL)
Host_Error("R_FreeTexture: texture == NULL");
for (gltpointer = &glt->pool->gltchain;*gltpointer && *gltpointer != glt;gltpointer = &(*gltpointer)->chain);
if (*gltpointer == glt)
*gltpointer = glt->chain;
else
Host_Error("R_FreeTexture: texture \"%s\" not linked in pool", glt->identifier);
if (glt->texnum)
{
CHECKGLERROR
qglDeleteTextures(1, (GLuint *)&glt->texnum);CHECKGLERROR
}
if (glt->inputtexels)
Mem_Free(glt->inputtexels);
Mem_ExpandableArray_FreeRecord(&texturearray, glt);
}
rtexturepool_t *R_AllocTexturePool(void)
{
gltexturepool_t *pool;
if (texturemempool == NULL)
return NULL;
pool = (gltexturepool_t *)Mem_Alloc(texturemempool, sizeof(gltexturepool_t));
if (pool == NULL)
return NULL;
pool->next = gltexturepoolchain;
gltexturepoolchain = pool;
pool->sentinel = TEXTUREPOOL_SENTINEL;
return (rtexturepool_t *)pool;
}
void R_FreeTexturePool(rtexturepool_t **rtexturepool)
{
gltexturepool_t *pool, **poolpointer;
if (rtexturepool == NULL)
return;
if (*rtexturepool == NULL)
return;
pool = (gltexturepool_t *)(*rtexturepool);
*rtexturepool = NULL;
if (pool->sentinel != TEXTUREPOOL_SENTINEL)
Host_Error("R_FreeTexturePool: pool already freed");
for (poolpointer = &gltexturepoolchain;*poolpointer && *poolpointer != pool;poolpointer = &(*poolpointer)->next);
if (*poolpointer == pool)
*poolpointer = pool->next;
else
Host_Error("R_FreeTexturePool: pool not linked");
while (pool->gltchain)
R_FreeTexture((rtexture_t *)pool->gltchain);
Mem_Free(pool);
}
typedef struct glmode_s
{
char *name;
int minification, magnification;
}
glmode_t;
static glmode_t modes[6] =
{
{"GL_NEAREST", GL_NEAREST, GL_NEAREST},
{"GL_LINEAR", GL_LINEAR, GL_LINEAR},
{"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
{"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
{"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
{"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
};
static void GL_TextureMode_f (void)
{
int i;
GLint oldbindtexnum;
gltexture_t *glt;
gltexturepool_t *pool;
if (Cmd_Argc() == 1)
{
Con_Printf("Texture mode is %sforced\n", gl_filter_force ? "" : "not ");
for (i = 0;i < 6;i++)
{
if (gl_filter_min == modes[i].minification)
{
Con_Printf("%s\n", modes[i].name);
return;
}
}
Con_Print("current filter is unknown???\n");
return;
}
for (i = 0;i < (int)(sizeof(modes)/sizeof(*modes));i++)
if (!strcasecmp (modes[i].name, Cmd_Argv(1) ) )
break;
if (i == 6)
{
Con_Print("bad filter name\n");
return;
}
gl_filter_min = modes[i].minification;
gl_filter_mag = modes[i].magnification;
gl_filter_force = ((Cmd_Argc() > 2) && !strcasecmp(Cmd_Argv(2), "force"));
// change all the existing mipmap texture objects
// FIXME: force renderer(/client/something?) restart instead?
CHECKGLERROR
GL_ActiveTexture(0);
for (pool = gltexturepoolchain;pool;pool = pool->next)
{
for (glt = pool->gltchain;glt;glt = glt->chain)
{
// only update already uploaded images
if (glt->texnum && (gl_filter_force || !(glt->flags & (TEXF_FORCENEAREST | TEXF_FORCELINEAR))))
{
oldbindtexnum = R_Mesh_TexBound(0, gltexturetypeenums[glt->texturetype]);
qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
if (glt->flags & TEXF_MIPMAP)
{
qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_min);CHECKGLERROR
}
else
{
qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MIN_FILTER, gl_filter_mag);CHECKGLERROR
}
qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MAG_FILTER, gl_filter_mag);CHECKGLERROR
qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
}
}
}
}
static void GL_Texture_CalcImageSize(int texturetype, int flags, int inwidth, int inheight, int indepth, int *outwidth, int *outheight, int *outdepth)
{
int picmip = 0, maxsize = 0, width2 = 1, height2 = 1, depth2 = 1;
switch (texturetype)
{
default:
case GLTEXTURETYPE_2D:
maxsize = vid.maxtexturesize_2d;
if (flags & TEXF_PICMIP)
{
maxsize = bound(1, gl_max_size.integer, maxsize);
picmip = gl_picmip.integer;
}
break;
case GLTEXTURETYPE_3D:
maxsize = vid.maxtexturesize_3d;
break;
case GLTEXTURETYPE_CUBEMAP:
maxsize = vid.maxtexturesize_cubemap;
break;
}
if (outwidth)
{
if (vid.support.arb_texture_non_power_of_two)
width2 = min(inwidth >> picmip, maxsize);
else
{
for (width2 = 1;width2 < inwidth;width2 <<= 1);
for (width2 >>= picmip;width2 > maxsize;width2 >>= 1);
}
*outwidth = max(1, width2);
}
if (outheight)
{
if (vid.support.arb_texture_non_power_of_two)
height2 = min(inheight >> picmip, maxsize);
else
{
for (height2 = 1;height2 < inheight;height2 <<= 1);
for (height2 >>= picmip;height2 > maxsize;height2 >>= 1);
}
*outheight = max(1, height2);
}
if (outdepth)
{
if (vid.support.arb_texture_non_power_of_two)
depth2 = min(indepth >> picmip, maxsize);
else
{
for (depth2 = 1;depth2 < indepth;depth2 <<= 1);
for (depth2 >>= picmip;depth2 > maxsize;depth2 >>= 1);
}
*outdepth = max(1, depth2);
}
}
static int R_CalcTexelDataSize (gltexture_t *glt)
{
int width2, height2, depth2, size;
GL_Texture_CalcImageSize(glt->texturetype, glt->flags, glt->inputwidth, glt->inputheight, glt->inputdepth, &width2, &height2, &depth2);
size = width2 * height2 * depth2;
if (glt->flags & TEXF_MIPMAP)
{
while (width2 > 1 || height2 > 1 || depth2 > 1)
{
if (width2 > 1)
width2 >>= 1;
if (height2 > 1)
height2 >>= 1;
if (depth2 > 1)
depth2 >>= 1;
size += width2 * height2 * depth2;
}
}
return (int)(size * glt->textype->glinternalbytesperpixel) * glt->sides;
}
void R_TextureStats_Print(qboolean printeach, qboolean printpool, qboolean printtotal)
{
int glsize;
int isloaded;
int pooltotal = 0, pooltotalt = 0, pooltotalp = 0, poolloaded = 0, poolloadedt = 0, poolloadedp = 0;
int sumtotal = 0, sumtotalt = 0, sumtotalp = 0, sumloaded = 0, sumloadedt = 0, sumloadedp = 0;
gltexture_t *glt;
gltexturepool_t *pool;
if (printeach)
Con_Print("glsize input loaded mip alpha name\n");
for (pool = gltexturepoolchain;pool;pool = pool->next)
{
pooltotal = 0;
pooltotalt = 0;
pooltotalp = 0;
poolloaded = 0;
poolloadedt = 0;
poolloadedp = 0;
for (glt = pool->gltchain;glt;glt = glt->chain)
{
glsize = R_CalcTexelDataSize(glt);
isloaded = glt->texnum != 0;
pooltotal++;
pooltotalt += glsize;
pooltotalp += glt->inputdatasize;
if (isloaded)
{
poolloaded++;
poolloadedt += glsize;
poolloadedp += glt->inputdatasize;
}
if (printeach)
Con_Printf("%c%4i%c%c%4i%c %s %s %s %s\n", isloaded ? '[' : ' ', (glsize + 1023) / 1024, isloaded ? ']' : ' ', glt->inputtexels ? '[' : ' ', (glt->inputdatasize + 1023) / 1024, glt->inputtexels ? ']' : ' ', isloaded ? "loaded" : " ", (glt->flags & TEXF_MIPMAP) ? "mip" : " ", (glt->flags & TEXF_ALPHA) ? "alpha" : " ", glt->identifier);
}
if (printpool)
Con_Printf("texturepool %10p total: %i (%.3fMB, %.3fMB original), uploaded %i (%.3fMB, %.3fMB original), upload on demand %i (%.3fMB, %.3fMB original)\n", (void *)pool, pooltotal, pooltotalt / 1048576.0, pooltotalp / 1048576.0, poolloaded, poolloadedt / 1048576.0, poolloadedp / 1048576.0, pooltotal - poolloaded, (pooltotalt - poolloadedt) / 1048576.0, (pooltotalp - poolloadedp) / 1048576.0);
sumtotal += pooltotal;
sumtotalt += pooltotalt;
sumtotalp += pooltotalp;
sumloaded += poolloaded;
sumloadedt += poolloadedt;
sumloadedp += poolloadedp;
}
if (printtotal)
Con_Printf("textures total: %i (%.3fMB, %.3fMB original), uploaded %i (%.3fMB, %.3fMB original), upload on demand %i (%.3fMB, %.3fMB original)\n", sumtotal, sumtotalt / 1048576.0, sumtotalp / 1048576.0, sumloaded, sumloadedt / 1048576.0, sumloadedp / 1048576.0, sumtotal - sumloaded, (sumtotalt - sumloadedt) / 1048576.0, (sumtotalp - sumloadedp) / 1048576.0);
}
static void R_TextureStats_f(void)
{
R_TextureStats_Print(true, true, true);
}
static void r_textures_start(void)
{
// LordHavoc: allow any alignment
CHECKGLERROR
qglPixelStorei(GL_UNPACK_ALIGNMENT, 1);CHECKGLERROR
qglPixelStorei(GL_PACK_ALIGNMENT, 1);CHECKGLERROR
texturemempool = Mem_AllocPool("texture management", 0, NULL);
Mem_ExpandableArray_NewArray(&texturearray, texturemempool, sizeof(gltexture_t), 512);
// Disable JPEG screenshots if the DLL isn't loaded
if (! JPEG_OpenLibrary ())
Cvar_SetValueQuick (&scr_screenshot_jpeg, 0);
// TODO: support png screenshots?
PNG_OpenLibrary ();
}
static void r_textures_shutdown(void)
{
rtexturepool_t *temp;
JPEG_CloseLibrary ();
while(gltexturepoolchain)
{
temp = (rtexturepool_t *) gltexturepoolchain;
R_FreeTexturePool(&temp);
}
resizebuffersize = 0;
resizebuffer = NULL;
colorconvertbuffer = NULL;
texturebuffer = NULL;
Mem_ExpandableArray_FreeArray(&texturearray);
Mem_FreePool(&texturemempool);
}
static void r_textures_newmap(void)
{
}
void R_Textures_Init (void)
{
Cmd_AddCommand("gl_texturemode", &GL_TextureMode_f, "set texture filtering mode (GL_NEAREST, GL_LINEAR, GL_LINEAR_MIPMAP_LINEAR, etc); an additional argument 'force' forces the texture mode even in cases where it may not be appropriate");
Cmd_AddCommand("r_texturestats", R_TextureStats_f, "print information about all loaded textures and some statistics");
Cvar_RegisterVariable (&gl_max_size);
Cvar_RegisterVariable (&gl_picmip);
Cvar_RegisterVariable (&gl_max_lightmapsize);
Cvar_RegisterVariable (&r_lerpimages);
Cvar_RegisterVariable (&gl_texture_anisotropy);
Cvar_RegisterVariable (&gl_texturecompression);
Cvar_RegisterVariable (&gl_texturecompression_color);
Cvar_RegisterVariable (&gl_texturecompression_normal);
Cvar_RegisterVariable (&gl_texturecompression_gloss);
Cvar_RegisterVariable (&gl_texturecompression_glow);
Cvar_RegisterVariable (&gl_texturecompression_2d);
Cvar_RegisterVariable (&gl_texturecompression_q3bsplightmaps);
Cvar_RegisterVariable (&gl_texturecompression_q3bspdeluxemaps);
Cvar_RegisterVariable (&gl_texturecompression_sky);
Cvar_RegisterVariable (&gl_texturecompression_lightcubemaps);
Cvar_RegisterVariable (&gl_texturecompression_reflectmask);
Cvar_RegisterVariable (&gl_nopartialtextureupdates);
R_RegisterModule("R_Textures", r_textures_start, r_textures_shutdown, r_textures_newmap);
}
void R_Textures_Frame (void)
{
static int old_aniso = 0;
// could do procedural texture animation here, if we keep track of which
// textures were accessed this frame...
// free the resize buffers
resizebuffersize = 0;
if (resizebuffer)
{
Mem_Free(resizebuffer);
resizebuffer = NULL;
}
if (colorconvertbuffer)
{
Mem_Free(colorconvertbuffer);
colorconvertbuffer = NULL;
}
if (old_aniso != gl_texture_anisotropy.integer)
{
gltexture_t *glt;
gltexturepool_t *pool;
GLint oldbindtexnum;
old_aniso = bound(1, gl_texture_anisotropy.integer, (int)vid.max_anisotropy);
Cvar_SetValueQuick(&gl_texture_anisotropy, old_aniso);
CHECKGLERROR
GL_ActiveTexture(0);
for (pool = gltexturepoolchain;pool;pool = pool->next)
{
for (glt = pool->gltchain;glt;glt = glt->chain)
{
// only update already uploaded images
if (glt->texnum && (glt->flags & TEXF_MIPMAP) == TEXF_MIPMAP)
{
oldbindtexnum = R_Mesh_TexBound(0, gltexturetypeenums[glt->texturetype]);
qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
qglTexParameteri(gltexturetypeenums[glt->texturetype], GL_TEXTURE_MAX_ANISOTROPY_EXT, old_aniso);CHECKGLERROR
qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
}
}
}
}
}
void R_MakeResizeBufferBigger(int size)
{
if (resizebuffersize < size)
{
resizebuffersize = size;
if (resizebuffer)
Mem_Free(resizebuffer);
if (colorconvertbuffer)
Mem_Free(colorconvertbuffer);
resizebuffer = (unsigned char *)Mem_Alloc(texturemempool, resizebuffersize);
colorconvertbuffer = (unsigned char *)Mem_Alloc(texturemempool, resizebuffersize);
if (!resizebuffer || !colorconvertbuffer)
Host_Error("R_Upload: out of memory");
}
}
static void GL_SetupTextureParameters(int flags, textype_t textype, int texturetype)
{
int textureenum = gltexturetypeenums[texturetype];
int wrapmode = (flags & TEXF_CLAMP) ? GL_CLAMP_TO_EDGE : GL_REPEAT;
CHECKGLERROR
if (vid.support.ext_texture_filter_anisotropic && (flags & TEXF_MIPMAP))
{
int aniso = bound(1, gl_texture_anisotropy.integer, (int)vid.max_anisotropy);
if (gl_texture_anisotropy.integer != aniso)
Cvar_SetValueQuick(&gl_texture_anisotropy, aniso);
qglTexParameteri(textureenum, GL_TEXTURE_MAX_ANISOTROPY_EXT, aniso);CHECKGLERROR
}
qglTexParameteri(textureenum, GL_TEXTURE_WRAP_S, wrapmode);CHECKGLERROR
qglTexParameteri(textureenum, GL_TEXTURE_WRAP_T, wrapmode);CHECKGLERROR
if (gltexturetypedimensions[texturetype] >= 3)
{
qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);CHECKGLERROR
}
CHECKGLERROR
if (!gl_filter_force && flags & TEXF_FORCENEAREST)
{
if (flags & TEXF_MIPMAP)
{
qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);CHECKGLERROR
}
else
{
qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_NEAREST);CHECKGLERROR
}
qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_NEAREST);CHECKGLERROR
}
else if (!gl_filter_force && flags & TEXF_FORCELINEAR)
{
if (flags & TEXF_MIPMAP)
{
if (gl_filter_min == GL_NEAREST_MIPMAP_LINEAR || gl_filter_min == GL_LINEAR_MIPMAP_LINEAR)
{
qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);CHECKGLERROR
}
else
{
qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);CHECKGLERROR
}
}
else
{
qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, GL_LINEAR);CHECKGLERROR
}
qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, GL_LINEAR);CHECKGLERROR
}
else
{
if (flags & TEXF_MIPMAP)
{
qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);CHECKGLERROR
}
else
{
qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);CHECKGLERROR
}
qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);CHECKGLERROR
}
if (textype == TEXTYPE_SHADOWMAP)
{
if (vid.support.arb_shadow)
{
if (flags & TEXF_COMPARE)
{
qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);CHECKGLERROR
}
else
{
qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);CHECKGLERROR
}
qglTexParameteri(textureenum, GL_TEXTURE_COMPARE_FUNC_ARB, GL_LEQUAL);CHECKGLERROR
}
qglTexParameteri(textureenum, GL_DEPTH_TEXTURE_MODE_ARB, GL_LUMINANCE);CHECKGLERROR
}
CHECKGLERROR
}
static void R_Upload(gltexture_t *glt, const unsigned char *data, int fragx, int fragy, int fragz, int fragwidth, int fragheight, int fragdepth)
{
int i, mip, width, height, depth;
GLint oldbindtexnum;
const unsigned char *prevbuffer;
prevbuffer = data;
CHECKGLERROR
// we need to restore the texture binding after finishing the upload
GL_ActiveTexture(0);
oldbindtexnum = R_Mesh_TexBound(0, gltexturetypeenums[glt->texturetype]);
qglBindTexture(gltexturetypeenums[glt->texturetype], glt->texnum);CHECKGLERROR
// these are rounded up versions of the size to do better resampling
if (vid.support.arb_texture_non_power_of_two || glt->texturetype == GLTEXTURETYPE_RECTANGLE)
{
width = glt->inputwidth;
height = glt->inputheight;
depth = glt->inputdepth;
}
else
{
for (width = 1;width < glt->inputwidth ;width <<= 1);
for (height = 1;height < glt->inputheight;height <<= 1);
for (depth = 1;depth < glt->inputdepth ;depth <<= 1);
}
R_MakeResizeBufferBigger(width * height * depth * glt->sides * glt->bytesperpixel);
R_MakeResizeBufferBigger(fragwidth * fragheight * fragdepth * glt->sides * glt->bytesperpixel);
if (prevbuffer == NULL)
{
memset(resizebuffer, 0, fragwidth * fragheight * fragdepth * glt->bytesperpixel);
prevbuffer = resizebuffer;
}
else if (glt->textype->textype == TEXTYPE_PALETTE)
{
// promote paletted to BGRA, so we only have to worry about BGRA in the rest of this code
Image_Copy8bitBGRA(prevbuffer, colorconvertbuffer, fragwidth * fragheight * fragdepth * glt->sides, glt->palette);
prevbuffer = colorconvertbuffer;
}
// upload the image - preferring to do only complete uploads (drivers do not really like partial updates)
if ((glt->flags & (TEXF_MIPMAP | TEXF_PICMIP)) == 0 && glt->inputwidth == glt->tilewidth && glt->inputheight == glt->tileheight && glt->inputdepth == glt->tiledepth && (fragx != 0 || fragy != 0 || fragwidth != glt->tilewidth || fragheight != glt->tileheight))
{
// update a portion of the image
switch(glt->texturetype)
{
case GLTEXTURETYPE_2D:
qglTexSubImage2D(GL_TEXTURE_2D, 0, fragx, fragy, fragwidth, fragheight, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
break;
case GLTEXTURETYPE_3D:
qglTexSubImage3D(GL_TEXTURE_3D, 0, fragx, fragy, fragz, fragwidth, fragheight, fragdepth, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
break;
default:
Host_Error("R_Upload: partial update of type other than 2D");
break;
}
}
else
{
if (fragx || fragy || fragz || glt->inputwidth != fragwidth || glt->inputheight != fragheight || glt->inputdepth != fragdepth)
Host_Error("R_Upload: partial update not allowed on initial upload or in combination with PICMIP or MIPMAP\n");
// cubemaps contain multiple images and thus get processed a bit differently
if (glt->texturetype != GLTEXTURETYPE_CUBEMAP)
{
if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
{
Image_Resample32(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, r_lerpimages.integer);
prevbuffer = resizebuffer;
}
// picmip/max_size
while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
{
Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth);
prevbuffer = resizebuffer;
}
}
mip = 0;
if (qglGetCompressedTexImageARB)
{
if (gl_texturecompression.integer >= 2)
qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_NICEST);
else
qglHint(GL_TEXTURE_COMPRESSION_HINT_ARB, GL_FASTEST);
CHECKGLERROR
}
switch(glt->texturetype)
{
case GLTEXTURETYPE_2D:
qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
if (glt->flags & TEXF_MIPMAP)
{
while (width > 1 || height > 1 || depth > 1)
{
Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
prevbuffer = resizebuffer;
qglTexImage2D(GL_TEXTURE_2D, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
}
}
break;
case GLTEXTURETYPE_3D:
qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
if (glt->flags & TEXF_MIPMAP)
{
while (width > 1 || height > 1 || depth > 1)
{
Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
prevbuffer = resizebuffer;
qglTexImage3D(GL_TEXTURE_3D, mip++, glt->glinternalformat, width, height, depth, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
}
}
break;
case GLTEXTURETYPE_CUBEMAP:
// convert and upload each side in turn,
// from a continuous block of input texels
texturebuffer = (unsigned char *)prevbuffer;
for (i = 0;i < 6;i++)
{
prevbuffer = texturebuffer;
texturebuffer += glt->inputwidth * glt->inputheight * glt->inputdepth * glt->textype->inputbytesperpixel;
if (glt->inputwidth != width || glt->inputheight != height || glt->inputdepth != depth)
{
Image_Resample32(prevbuffer, glt->inputwidth, glt->inputheight, glt->inputdepth, resizebuffer, width, height, depth, r_lerpimages.integer);
prevbuffer = resizebuffer;
}
// picmip/max_size
while (width > glt->tilewidth || height > glt->tileheight || depth > glt->tiledepth)
{
Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, glt->tilewidth, glt->tileheight, glt->tiledepth);
prevbuffer = resizebuffer;
}
mip = 0;
qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
if (glt->flags & TEXF_MIPMAP)
{
while (width > 1 || height > 1 || depth > 1)
{
Image_MipReduce32(prevbuffer, resizebuffer, &width, &height, &depth, 1, 1, 1);
prevbuffer = resizebuffer;
qglTexImage2D(cubemapside[i], mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, prevbuffer);CHECKGLERROR
}
}
}
break;
case GLTEXTURETYPE_RECTANGLE:
qglTexImage2D(GL_TEXTURE_RECTANGLE_ARB, mip++, glt->glinternalformat, width, height, 0, glt->glformat, glt->gltype, NULL);CHECKGLERROR
break;
}
GL_SetupTextureParameters(glt->flags, glt->textype->textype, glt->texturetype);
}
qglBindTexture(gltexturetypeenums[glt->texturetype], oldbindtexnum);CHECKGLERROR
}
static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, int sides, int flags, textype_t textype, int texturetype, const unsigned char *data, const unsigned int *palette)
{
int i, size;
gltexture_t *glt;
gltexturepool_t *pool = (gltexturepool_t *)rtexturepool;
textypeinfo_t *texinfo, *texinfo2;
if (cls.state == ca_dedicated)
return NULL;
if (texturetype == GLTEXTURETYPE_RECTANGLE && !vid.support.arb_texture_rectangle)
{
Con_Printf ("R_LoadTexture: rectangle texture not supported by driver\n");
return NULL;
}
if (texturetype == GLTEXTURETYPE_CUBEMAP && !vid.support.arb_texture_cube_map)
{
Con_Printf ("R_LoadTexture: cubemap texture not supported by driver\n");
return NULL;
}
if (texturetype == GLTEXTURETYPE_3D && !vid.support.ext_texture_3d)
{
Con_Printf ("R_LoadTexture: 3d texture not supported by driver\n");
return NULL;
}
texinfo = R_GetTexTypeInfo(textype, flags);
size = width * height * depth * sides * texinfo->inputbytesperpixel;
if (size < 1)
{
Con_Printf ("R_LoadTexture: bogus texture size (%dx%dx%dx%dbppx%dsides = %d bytes)\n", width, height, depth, texinfo->inputbytesperpixel * 8, sides, size);
return NULL;
}
// clear the alpha flag if the texture has no transparent pixels
switch(textype)
{
case TEXTYPE_PALETTE:
if (flags & TEXF_ALPHA)
{
flags &= ~TEXF_ALPHA;
if (data)
{
for (i = 0;i < size;i++)
{
if (((unsigned char *)&palette[data[i]])[3] < 255)
{
flags |= TEXF_ALPHA;
break;
}
}
}
}
break;
case TEXTYPE_RGBA:
case TEXTYPE_BGRA:
if (flags & TEXF_ALPHA)
{
flags &= ~TEXF_ALPHA;
if (data)
{
for (i = 3;i < size;i += 4)
{
if (data[i] < 255)
{
flags |= TEXF_ALPHA;
break;
}
}
}
}
break;
case TEXTYPE_SHADOWMAP:
break;
case TEXTYPE_DXT1:
break;
case TEXTYPE_DXT1A:
case TEXTYPE_DXT3:
case TEXTYPE_DXT5:
flags |= TEXF_ALPHA;
break;
case TEXTYPE_ALPHA:
flags |= TEXF_ALPHA;
break;
case TEXTYPE_COLORBUFFER:
flags |= TEXF_ALPHA;
break;
default:
Host_Error("R_LoadTexture: unknown texture type");
}
texinfo2 = R_GetTexTypeInfo(textype, flags);
if(size == width * height * depth * sides * texinfo->inputbytesperpixel)
texinfo = texinfo2;
else
Con_Printf ("R_LoadTexture: input size changed after alpha fallback\n");
glt = (gltexture_t *)Mem_ExpandableArray_AllocRecord(&texturearray);
if (identifier)
strlcpy (glt->identifier, identifier, sizeof(glt->identifier));
glt->pool = pool;
glt->chain = pool->gltchain;
pool->gltchain = glt;
glt->inputwidth = width;
glt->inputheight = height;
glt->inputdepth = depth;
glt->flags = flags;