aboutsummaryrefslogtreecommitdiffhomepage
path: root/libvo/vo_fbdev.c
blob: f59aa024b6620c2b9d6e64fe9e04cd895a9e6b94 (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
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
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
/*
 * Video driver for Framebuffer device
 * by Szabolcs Berecz <szabi@inf.elte.hu>
 * (C) 2001
 * 
 * Some idea and code borrowed from Chris Lawrence's ppmtofb-0.27
 * Some fixes and small improvements by Joey Parrish <joey@nicewarrior.org>
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <ctype.h>

#include <sys/mman.h>
#include <sys/ioctl.h>
#include <sys/kd.h>
#include <linux/fb.h>

#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "fastmemcpy.h"
#include "sub.h"
#ifdef CONFIG_VIDIX
#include "vosub_vidix.h"
#endif
#include "aspect.h"
#include "mp_msg.h"

static vo_info_t info = {
	"Framebuffer Device",
	"fbdev",
	"Szabolcs Berecz <szabi@inf.elte.hu>",
	""
};

LIBVO_EXTERN(fbdev)

#ifdef CONFIG_VIDIX
/* Name of VIDIX driver */
static const char *vidix_name = NULL;
static vidix_grkey_t gr_key;
#endif
static signed int pre_init_err = -2;
/******************************
*	fb.modes support      *
******************************/

extern char *monitor_hfreq_str;
extern char *monitor_vfreq_str;
extern char *monitor_dotclock_str;

static range_t *monitor_hfreq = NULL;
static range_t *monitor_vfreq = NULL;
static range_t *monitor_dotclock = NULL;

typedef struct {
	char *name;
	uint32_t xres, yres, vxres, vyres, depth;
	uint32_t pixclock, left, right, upper, lower, hslen, vslen;
	uint32_t sync;
	uint32_t vmode;
} fb_mode_t;

#define MAX_NR_TOKEN	16

#define MAX_LINE_LEN	1000

#define RET_EOF		-1
#define RET_EOL		-2

static int validate_mode(fb_mode_t *m)
{
	if (!m->xres) {
		mp_msg(MSGT_VO, MSGL_V, "needs geometry ");
		return 0;
	}
	if (!m->pixclock) {
		mp_msg(MSGT_VO, MSGL_V, "needs timings ");
		return 0;
	}
	return 1;
}

static FILE *fp;
static int line_num = 0;
static char *line;
static char *token[MAX_NR_TOKEN];

static int get_token(int num)
{
	static int read_nextline = 1;
	static int line_pos;
	int i;
	char c;

	if (num >= MAX_NR_TOKEN) {
		mp_msg(MSGT_VO, MSGL_V, "get_token(): max >= MAX_NR_TOKEN!\n");
		goto out_eof;
	}

	if (read_nextline) {
		if (!fgets(line, MAX_LINE_LEN, fp))
			goto out_eof;
		line_pos = 0;
		++line_num;
		read_nextline = 0;
	}
	for (i = 0; i < num; i++) {
		while (isspace(line[line_pos]))
			++line_pos;
		if (line[line_pos] == '\0' || line[line_pos] == '#') {
			read_nextline = 1;
			goto out_eol;
		}
		token[i] = line + line_pos;
		c = line[line_pos];
		if (c == '"' || c == '\'') {
			token[i]++;
			while (line[++line_pos] != c && line[line_pos])
				/* NOTHING */;
			if (!line[line_pos])
				goto out_eol;
			line[line_pos] = ' ';
		} else {
			for (/* NOTHING */; !isspace(line[line_pos]) &&
					line[line_pos]; line_pos++)
				/* NOTHING */;
		}
		if (!line[line_pos]) {
			read_nextline = 1;
			if (i == num - 1)
				goto out_ok;
			goto out_eol;
		}
		line[line_pos++] = '\0';
	}
out_ok:
	return i;
out_eof:
	return RET_EOF;
out_eol:
	return RET_EOL;
}

static fb_mode_t *fb_modes = NULL;
static int nr_modes = 0;

static int parse_fbmode_cfg(char *cfgfile)
{
#define CHECK_IN_MODE_DEF\
	if (!in_mode_def) {\
		mp_msg(MSGT_VO, MSGL_V, "'needs 'mode' first");\
		goto err_out_print_linenum;\
	}
	fb_mode_t *mode = NULL;
	char *endptr;	// strtoul()...
	int in_mode_def = 0;
	int tmp, i;

	/* If called more than once, reuse parsed data */
	if (nr_modes)
		return nr_modes;

	mp_msg(MSGT_VO, MSGL_V, "Reading %s: ", cfgfile);

	if ((fp = fopen(cfgfile, "r")) == NULL) {
		mp_msg(MSGT_VO, MSGL_V, "can't open '%s': %s\n", cfgfile, strerror(errno));
		return -1;
	}

	if ((line = (char *) malloc(MAX_LINE_LEN + 1)) == NULL) {
		mp_msg(MSGT_VO, MSGL_V, "can't get memory for 'line': %s\n", strerror(errno));
		return -2;
	}

	/*
	 * check if the cfgfile starts with 'mode'
	 */
	while ((tmp = get_token(1)) == RET_EOL)
		/* NOTHING */;
	if (tmp == RET_EOF)
		goto out;
	if (!strcmp(token[0], "mode"))
		goto loop_enter;
	goto err_out_parse_error;

	while ((tmp = get_token(1)) != RET_EOF) {
		if (tmp == RET_EOL)
			continue;
		if (!strcmp(token[0], "mode")) {
			if (in_mode_def) {
				mp_msg(MSGT_VO, MSGL_V, "'endmode' required");
				goto err_out_print_linenum;
			}
			if (!validate_mode(mode))
				goto err_out_not_valid;
		loop_enter:
		        if (!(fb_modes = (fb_mode_t *) realloc(fb_modes,
				sizeof(fb_mode_t) * (nr_modes + 1)))) {
			    mp_msg(MSGT_VO, MSGL_V, "can't realloc 'fb_modes' (nr_modes = %d):"
					    " %s\n", nr_modes, strerror(errno));
			    goto err_out;
		        }
			mode=fb_modes + nr_modes;
			++nr_modes;
                        memset(mode,0,sizeof(fb_mode_t));

			if (get_token(1) < 0)
				goto err_out_parse_error;
			for (i = 0; i < nr_modes - 1; i++) {
				if (!strcmp(token[0], fb_modes[i].name)) {
					mp_msg(MSGT_VO, MSGL_V, "mode name '%s' isn't unique", token[0]);
					goto err_out_print_linenum;
				}
			}
			if (!(mode->name = strdup(token[0]))) {
				mp_msg(MSGT_VO, MSGL_V, "can't strdup -> 'name': %s\n", strerror(errno));
				goto err_out;
			}
			in_mode_def = 1;
		} else if (!strcmp(token[0], "geometry")) {
			CHECK_IN_MODE_DEF;
			if (get_token(5) < 0)
				goto err_out_parse_error;
			mode->xres = strtoul(token[0], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->yres = strtoul(token[1], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->vxres = strtoul(token[2], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->vyres = strtoul(token[3], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->depth = strtoul(token[4], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
		} else if (!strcmp(token[0], "timings")) {
			CHECK_IN_MODE_DEF;
			if (get_token(7) < 0)
				goto err_out_parse_error;
			mode->pixclock = strtoul(token[0], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->left = strtoul(token[1], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->right = strtoul(token[2], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->upper = strtoul(token[3], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->lower = strtoul(token[4], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->hslen = strtoul(token[5], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
			mode->vslen = strtoul(token[6], &endptr, 0);
			if (*endptr)
				goto err_out_parse_error;
		} else if (!strcmp(token[0], "endmode")) {
			CHECK_IN_MODE_DEF;
			in_mode_def = 0;
		} else if (!strcmp(token[0], "accel")) {
			CHECK_IN_MODE_DEF;
			if (get_token(1) < 0)
				goto err_out_parse_error;
			/*
			 * it's only used for text acceleration
			 * so we just ignore it.
			 */
		} else if (!strcmp(token[0], "hsync")) {
			CHECK_IN_MODE_DEF;
			if (get_token(1) < 0)
				goto err_out_parse_error;
			if (!strcmp(token[0], "low"))
				mode->sync &= ~FB_SYNC_HOR_HIGH_ACT;
			else if(!strcmp(token[0], "high"))
				mode->sync |= FB_SYNC_HOR_HIGH_ACT;
			else
				goto err_out_parse_error;
		} else if (!strcmp(token[0], "vsync")) {
			CHECK_IN_MODE_DEF;
			if (get_token(1) < 0)
				goto err_out_parse_error;
			if (!strcmp(token[0], "low"))
				mode->sync &= ~FB_SYNC_VERT_HIGH_ACT;
			else if(!strcmp(token[0], "high"))
				mode->sync |= FB_SYNC_VERT_HIGH_ACT;
			else
				goto err_out_parse_error;
		} else if (!strcmp(token[0], "csync")) {
			CHECK_IN_MODE_DEF;
			if (get_token(1) < 0)
				goto err_out_parse_error;
			if (!strcmp(token[0], "low"))
				mode->sync &= ~FB_SYNC_COMP_HIGH_ACT;
			else if(!strcmp(token[0], "high"))
				mode->sync |= FB_SYNC_COMP_HIGH_ACT;
			else
				goto err_out_parse_error;
		} else if (!strcmp(token[0], "extsync")) {
			CHECK_IN_MODE_DEF;
			if (get_token(1) < 0)
				goto err_out_parse_error;
			if (!strcmp(token[0], "false"))
				mode->sync &= ~FB_SYNC_EXT;
			else if(!strcmp(token[0], "true"))
				mode->sync |= FB_SYNC_EXT;
			else
				goto err_out_parse_error;
		} else if (!strcmp(token[0], "laced")) {
			CHECK_IN_MODE_DEF;
			if (get_token(1) < 0)
				goto err_out_parse_error;
			if (!strcmp(token[0], "false"))
				mode->vmode = FB_VMODE_NONINTERLACED;
			else if (!strcmp(token[0], "true"))
				mode->vmode = FB_VMODE_INTERLACED;
			else
				goto err_out_parse_error;
		} else if (!strcmp(token[0], "double")) {
			CHECK_IN_MODE_DEF;
			if (get_token(1) < 0)
				goto err_out_parse_error;
			if (!strcmp(token[0], "false"))
				;
			else if (!strcmp(token[0], "true"))
				mode->vmode = FB_VMODE_DOUBLE;
			else
				goto err_out_parse_error;
		} else
			goto err_out_parse_error;
	}
	if (!validate_mode(mode))
		goto err_out_not_valid;
out:
	mp_msg(MSGT_VO, MSGL_V, "%d modes\n", nr_modes);
	free(line);
	fclose(fp);
	return nr_modes;
err_out_parse_error:
	mp_msg(MSGT_VO, MSGL_V, "parse error");
err_out_print_linenum:
	mp_msg(MSGT_VO, MSGL_V, " at line %d\n", line_num);
err_out:
	if (fb_modes) {
		free(fb_modes);
		fb_modes = NULL;
	}
	nr_modes = 0;
	free(line);
	free(fp);
	return -2;
err_out_not_valid:
	mp_msg(MSGT_VO, MSGL_V, "previous mode is not correct");
	goto err_out_print_linenum;
}

static fb_mode_t *find_mode_by_name(char *name)
{
	int i;

	for (i = 0; i < nr_modes; i++)
		if (!strcmp(name, fb_modes[i].name))
			return fb_modes + i;
	return NULL;
}

static float dcf(fb_mode_t *m)	//driving clock frequency
{
	return 1e12f / m->pixclock;
}

static float hsf(fb_mode_t *m)	//horizontal scan frequency
{
	int htotal = m->left + m->xres + m->right + m->hslen;
	return dcf(m) / htotal;
}

static float vsf(fb_mode_t *m)	//vertical scan frequency
{
	int vtotal = m->upper + m->yres + m->lower + m->vslen;
	return hsf(m) / vtotal;
}


static int mode_works(fb_mode_t *m, range_t *hfreq, range_t *vfreq,
		range_t *dotclock)
{
	float h = hsf(m);
	float v = vsf(m);
	float d = dcf(m);
	int ret = 1;

	mp_msg(MSGT_VO, MSGL_DBG2, "mode %dx%d:", m->xres, m->yres);
	if (!in_range(hfreq, h)) {
		ret = 0;
		mp_msg(MSGT_VO, MSGL_DBG2, " hsync out of range.");
	}
	if (!in_range(vfreq, v)) {
		ret = 0;
		mp_msg(MSGT_VO, MSGL_DBG2, " vsync out of range.");
	}
	if (!in_range(dotclock, d)) {
		ret = 0;
		mp_msg(MSGT_VO, MSGL_DBG2, " dotclock out of range.");
	}
	if (ret)
		mp_msg(MSGT_VO, MSGL_DBG2, " hsync, vsync, dotclock ok.\n");
	else
		mp_msg(MSGT_VO, MSGL_DBG2, "\n");

	return ret;
}

static fb_mode_t *find_best_mode(int xres, int yres, range_t *hfreq,
		range_t *vfreq, range_t *dotclock)
{
	int i;
	fb_mode_t *best = fb_modes;
	fb_mode_t *curr;

	mp_msg(MSGT_VO, MSGL_DBG2, "Searching for first working mode\n");

	for (i = 0; i < nr_modes; i++, best++)
		if (mode_works(best, hfreq, vfreq, dotclock))
			break;

	if (i == nr_modes)
		return NULL;
	if (i == nr_modes - 1)
		return best;

	mp_msg(MSGT_VO, MSGL_DBG2, "First working mode: %dx%d\n", best->xres, best->yres);
	mp_msg(MSGT_VO, MSGL_DBG2, "Searching for better modes\n");

	for (curr = best + 1; i < nr_modes - 1; i++, curr++) {
		if (!mode_works(curr, hfreq, vfreq, dotclock))
			continue;

		if (best->xres < xres || best->yres < yres) {
			if (curr->xres > best->xres || curr->yres > best->yres) {
				mp_msg(MSGT_VO, MSGL_DBG2, "better than %dx%d, which is too small.\n",
							best->xres, best->yres);
				best = curr;
			} else
				mp_msg(MSGT_VO, MSGL_DBG2, "too small.\n");
		} else if (curr->xres == best->xres && curr->yres == best->yres &&
				vsf(curr) > vsf(best)) {
			mp_msg(MSGT_VO, MSGL_DBG2, "faster screen refresh.\n");
			best = curr;
		} else if ((curr->xres <= best->xres && curr->yres <= best->yres) &&
				(curr->xres >= xres && curr->yres >= yres)) {
			mp_msg(MSGT_VO, MSGL_DBG2, "better than %dx%d, which is too large.\n",
						best->xres, best->yres);
			best = curr;
		} else {
			if (curr->xres < xres || curr->yres < yres)
				mp_msg(MSGT_VO, MSGL_DBG2, "too small.\n");
			else if (curr->xres > best->xres || curr->yres > best->yres)
				mp_msg(MSGT_VO, MSGL_DBG2, "too large.\n");
			else mp_msg(MSGT_VO, MSGL_DBG2, "it's worse, don't know why.\n");
		}
	}

	return best;
}

static void set_bpp(struct fb_var_screeninfo *p, int bpp)
{
	p->bits_per_pixel = (bpp + 1) & ~1;
	p->red.msb_right = p->green.msb_right = p->blue.msb_right = p->transp.msb_right = 0;
	p->transp.offset = p->transp.length = 0;
	p->blue.offset = 0;
	switch (bpp) {
		case 32:
			p->transp.offset = 24;
			p->transp.length = 8;
		case 24:
			p->red.offset = 16;
			p->red.length = 8;
			p->green.offset = 8;
			p->green.length = 8;
			p->blue.length = 8;
			break;
		case 16:
			p->red.offset = 11;
			p->green.length = 6;
			p->red.length = 5;
			p->green.offset = 5;
			p->blue.length = 5;
			break;
		case 15:
			p->red.offset = 10;
			p->green.length = 5;
			p->red.length = 5;
			p->green.offset = 5;
			p->blue.length = 5;
			break;
	}
}

static void fb_mode2fb_vinfo(fb_mode_t *m, struct fb_var_screeninfo *v)
{
	v->xres = m->xres;
	v->yres = m->yres;
	v->xres_virtual = m->vxres;
	v->yres_virtual = m->vyres;
	set_bpp(v, m->depth);
	v->pixclock = m->pixclock;
	v->left_margin = m->left;
	v->right_margin = m->right;
	v->upper_margin = m->upper;
	v->lower_margin = m->lower;
	v->hsync_len = m->hslen;
	v->vsync_len = m->vslen;
	v->sync = m->sync;
	v->vmode = m->vmode;
}


/******************************
*	    vo_fbdev	      *
******************************/

/* command line/config file options */
char *fb_dev_name = NULL;
char *fb_mode_cfgfile = NULL;
char *fb_mode_name = NULL;

static fb_mode_t *fb_mode = NULL;

/* vt related variables */
static FILE *vt_fp = NULL;
static int vt_doit = 1;

/* vo_fbdev related variables */
static int fb_dev_fd;
static int fb_tty_fd = -1;
static size_t fb_size;
static uint8_t *frame_buffer;
static uint8_t *center;	/* thx .so :) */
static struct fb_fix_screeninfo fb_finfo;
static struct fb_var_screeninfo fb_orig_vinfo;
static struct fb_var_screeninfo fb_vinfo;
static unsigned short fb_ored[256], fb_ogreen[256], fb_oblue[256];
static struct fb_cmap fb_oldcmap = { 0, 256, fb_ored, fb_ogreen, fb_oblue };
static int fb_cmap_changed = 0;
static int fb_pixel_size;	// 32:  4  24:  3  16:  2  15:  2
static int fb_bpp;		// 32: 32  24: 24  16: 16  15: 15
static int fb_bpp_we_want;	// 32: 32  24: 24  16: 16  15: 15
static int fb_line_len;
static int fb_xres;
static int fb_yres;
static void (*draw_alpha_p)(int w, int h, unsigned char *src,
		unsigned char *srca, int stride, unsigned char *dst,
		int dstride);

static int in_width;
static int in_height;
static int out_width;
static int out_height;
static int first_row;
static int last_row;
static uint32_t pixel_format;
static int fs;

/*
 * Note: this function is completely cut'n'pasted from
 * Chris Lawrence's code.
 * (modified a bit to fit in my code...)
 */
static struct fb_cmap *make_directcolor_cmap(struct fb_var_screeninfo *var)
{
  /* Hopefully any DIRECTCOLOR device will have a big enough palette
   * to handle mapping the full color depth.
   * e.g. 8 bpp -> 256 entry palette
   *
   * We could handle some sort of gamma here
   */
  int i, cols, rcols, gcols, bcols;
  uint16_t *red, *green, *blue;
  struct fb_cmap *cmap;
        
  rcols = 1 << var->red.length;
  gcols = 1 << var->green.length;
  bcols = 1 << var->blue.length;
  
  /* Make our palette the length of the deepest color */
  cols = (rcols > gcols ? rcols : gcols);
  cols = (cols > bcols ? cols : bcols);
  
  red = malloc(cols * sizeof(red[0]));
  if(!red) {
	  mp_msg(MSGT_VO, MSGL_V, "Can't allocate red palette with %d entries.\n", cols);
	  return NULL;
  }
  for(i=0; i< rcols; i++)
    red[i] = (65535/(rcols-1)) * i;
  
  green = malloc(cols * sizeof(green[0]));
  if(!green) {
	  mp_msg(MSGT_VO, MSGL_V, "Can't allocate green palette with %d entries.\n", cols);
	  free(red);
	  return NULL;
  }
  for(i=0; i< gcols; i++)
    green[i] = (65535/(gcols-1)) * i;
  
  blue = malloc(cols * sizeof(blue[0]));
  if(!blue) {
	  mp_msg(MSGT_VO, MSGL_V, "Can't allocate blue palette with %d entries.\n", cols);
	  free(red);
	  free(green);
	  return NULL;
  }
  for(i=0; i< bcols; i++)
    blue[i] = (65535/(bcols-1)) * i;
  
  cmap = malloc(sizeof(struct fb_cmap));
  if(!cmap) {
	  mp_msg(MSGT_VO, MSGL_V, "Can't allocate color map\n");
	  free(red);
	  free(green);
	  free(blue);
	  return NULL;
  }
  cmap->start = 0;
  cmap->transp = 0;
  cmap->len = cols;
  cmap->red = red;
  cmap->blue = blue;
  cmap->green = green;
  cmap->transp = NULL;
  
  return cmap;
}


static int fb_preinit(int reset)
{
	static int fb_preinit_done = 0;
	static int fb_works = 0;

	if (reset)
	{
	    fb_preinit_done = 0;
	    return 0;
	}

	if (fb_preinit_done)
		return fb_works;

	if (!fb_dev_name && !(fb_dev_name = getenv("FRAMEBUFFER")))
		fb_dev_name = strdup("/dev/fb0");
	mp_msg(MSGT_VO, MSGL_V, "using %s\n", fb_dev_name);

	if ((fb_dev_fd = open(fb_dev_name, O_RDWR)) == -1) {
		mp_msg(MSGT_VO, MSGL_ERR, "Can't open %s: %s\n", fb_dev_name, strerror(errno));
		goto err_out;
	}
	if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
		mp_msg(MSGT_VO, MSGL_ERR, "Can't get VSCREENINFO: %s\n", strerror(errno));
		goto err_out_fd;
	}
	fb_orig_vinfo = fb_vinfo;

        if ((fb_tty_fd = open("/dev/tty", O_RDWR)) < 0) {
                mp_msg(MSGT_VO, MSGL_ERR, "notice: Can't open /dev/tty: %s\n", strerror(errno));
        }

	fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
		fb_vinfo.blue.length + fb_vinfo.transp.length;

	if (fb_bpp == 8 && !vo_dbpp) {
		mp_msg(MSGT_VO, MSGL_ERR, "8 bpp output is not supported.\n");
		goto err_out_tty_fd;
	}

	if (vo_dbpp) {
		if (vo_dbpp != 15 && vo_dbpp != 16 && vo_dbpp != 24 &&
				vo_dbpp != 32) {
			mp_msg(MSGT_VO, MSGL_ERR, "can't switch to %d bpp\n", vo_dbpp);
			goto err_out_fd;
		}
		fb_bpp = vo_dbpp;		
	}
	
	if (!fb_mode_cfgfile)
	    fb_mode_cfgfile = strdup("/etc/fb.modes");

	fb_preinit_done = 1;
	fb_works = 1;
	return 1;
err_out_tty_fd:
        close(fb_tty_fd);
        fb_tty_fd = -1;
err_out_fd:
	close(fb_dev_fd);
	fb_dev_fd = -1;
err_out:
	fb_preinit_done = 1;
	fb_works = 0;
	return 0;
}

static void lots_of_printf(void)
{
	mp_msg(MSGT_VO, MSGL_V, "var info:\n");
	mp_msg(MSGT_VO, MSGL_V, "xres: %u\n", fb_vinfo.xres);
	mp_msg(MSGT_VO, MSGL_V, "yres: %u\n", fb_vinfo.yres);
	mp_msg(MSGT_VO, MSGL_V, "xres_virtual: %u\n", fb_vinfo.xres_virtual);
	mp_msg(MSGT_VO, MSGL_V, "yres_virtual: %u\n", fb_vinfo.yres_virtual);
	mp_msg(MSGT_VO, MSGL_V, "xoffset: %u\n", fb_vinfo.xoffset);
	mp_msg(MSGT_VO, MSGL_V, "yoffset: %u\n", fb_vinfo.yoffset);
	mp_msg(MSGT_VO, MSGL_V, "bits_per_pixel: %u\n", fb_vinfo.bits_per_pixel);
	mp_msg(MSGT_VO, MSGL_V, "grayscale: %u\n", fb_vinfo.grayscale);
	mp_msg(MSGT_VO, MSGL_V, "red: %lu %lu %lu\n",
			(unsigned long) fb_vinfo.red.offset,
			(unsigned long) fb_vinfo.red.length,
			(unsigned long) fb_vinfo.red.msb_right);
	mp_msg(MSGT_VO, MSGL_V, "green: %lu %lu %lu\n",
			(unsigned long) fb_vinfo.green.offset,
			(unsigned long) fb_vinfo.green.length,
			(unsigned long) fb_vinfo.green.msb_right);
	mp_msg(MSGT_VO, MSGL_V, "blue: %lu %lu %lu\n",
			(unsigned long) fb_vinfo.blue.offset,
			(unsigned long) fb_vinfo.blue.length,
			(unsigned long) fb_vinfo.blue.msb_right);
	mp_msg(MSGT_VO, MSGL_V, "transp: %lu %lu %lu\n",
			(unsigned long) fb_vinfo.transp.offset,
			(unsigned long) fb_vinfo.transp.length,
			(unsigned long) fb_vinfo.transp.msb_right);
	mp_msg(MSGT_VO, MSGL_V, "nonstd: %u\n", fb_vinfo.nonstd);
	mp_msg(MSGT_VO, MSGL_DBG2, "activate: %u\n", fb_vinfo.activate);
	mp_msg(MSGT_VO, MSGL_DBG2, "height: %u\n", fb_vinfo.height);
	mp_msg(MSGT_VO, MSGL_DBG2, "width: %u\n", fb_vinfo.width);
	mp_msg(MSGT_VO, MSGL_DBG2, "accel_flags: %u\n", fb_vinfo.accel_flags);
	mp_msg(MSGT_VO, MSGL_DBG2, "timing:\n");
	mp_msg(MSGT_VO, MSGL_DBG2, "pixclock: %u\n", fb_vinfo.pixclock);
	mp_msg(MSGT_VO, MSGL_DBG2, "left_margin: %u\n", fb_vinfo.left_margin);
	mp_msg(MSGT_VO, MSGL_DBG2, "right_margin: %u\n", fb_vinfo.right_margin);
	mp_msg(MSGT_VO, MSGL_DBG2, "upper_margin: %u\n", fb_vinfo.upper_margin);
	mp_msg(MSGT_VO, MSGL_DBG2, "lower_margin: %u\n", fb_vinfo.lower_margin);
	mp_msg(MSGT_VO, MSGL_DBG2, "hsync_len: %u\n", fb_vinfo.hsync_len);
	mp_msg(MSGT_VO, MSGL_DBG2, "vsync_len: %u\n", fb_vinfo.vsync_len);
	mp_msg(MSGT_VO, MSGL_DBG2, "sync: %u\n", fb_vinfo.sync);
	mp_msg(MSGT_VO, MSGL_DBG2, "vmode: %u\n", fb_vinfo.vmode);
	mp_msg(MSGT_VO, MSGL_V, "fix info:\n");
	mp_msg(MSGT_VO, MSGL_V, "framebuffer size: %d bytes\n", fb_finfo.smem_len);
	mp_msg(MSGT_VO, MSGL_V, "type: %lu\n", (unsigned long) fb_finfo.type);
	mp_msg(MSGT_VO, MSGL_V, "type_aux: %lu\n", (unsigned long) fb_finfo.type_aux);
	mp_msg(MSGT_VO, MSGL_V, "visual: %lu\n", (unsigned long) fb_finfo.visual);
	mp_msg(MSGT_VO, MSGL_V, "line_length: %lu bytes\n", (unsigned long) fb_finfo.line_length);
	mp_msg(MSGT_VO, MSGL_DBG2, "id: %.16s\n", fb_finfo.id);
	mp_msg(MSGT_VO, MSGL_DBG2, "smem_start: %p\n", (void *) fb_finfo.smem_start);
	mp_msg(MSGT_VO, MSGL_DBG2, "xpanstep: %u\n", fb_finfo.xpanstep);
	mp_msg(MSGT_VO, MSGL_DBG2, "ypanstep: %u\n", fb_finfo.ypanstep);
	mp_msg(MSGT_VO, MSGL_DBG2, "ywrapstep: %u\n", fb_finfo.ywrapstep);
	mp_msg(MSGT_VO, MSGL_DBG2, "mmio_start: %p\n", (void *) fb_finfo.mmio_start);
	mp_msg(MSGT_VO, MSGL_DBG2, "mmio_len: %u bytes\n", fb_finfo.mmio_len);
	mp_msg(MSGT_VO, MSGL_DBG2, "accel: %u\n", fb_finfo.accel);
	mp_msg(MSGT_VO, MSGL_V, "fb_bpp: %d\n", fb_bpp);
	mp_msg(MSGT_VO, MSGL_V, "fb_pixel_size: %d bytes\n", fb_pixel_size);
	mp_msg(MSGT_VO, MSGL_V, "other:\n");
	mp_msg(MSGT_VO, MSGL_V, "in_width: %d\n", in_width);
	mp_msg(MSGT_VO, MSGL_V, "in_height: %d\n", in_height);
	mp_msg(MSGT_VO, MSGL_V, "out_width: %d\n", out_width);
	mp_msg(MSGT_VO, MSGL_V, "out_height: %d\n", out_height);
	mp_msg(MSGT_VO, MSGL_V, "first_row: %d\n", first_row);
	mp_msg(MSGT_VO, MSGL_V, "last_row: %d\n", last_row);
	mp_msg(MSGT_VO, MSGL_DBG2, "draw_alpha_p:%dbpp = %p\n", fb_bpp, draw_alpha_p);
}

static void vt_set_textarea(int u, int l)
{
	/* how can I determine the font height?
	 * just use 16 for now
	 */
	int urow = ((u + 15) / 16) + 1;
	int lrow = l / 16;

	mp_msg(MSGT_VO, MSGL_DBG2, "vt_set_textarea(%d,%d): %d,%d\n", u, l, urow, lrow);
	if(vt_fp) {
	  fprintf(vt_fp, "\33[%d;%dr\33[%d;%dH", urow, lrow, lrow, 0);
	  fflush(vt_fp);
	}
}

static int config(uint32_t width, uint32_t height, uint32_t d_width,
		uint32_t d_height, uint32_t flags, char *title,
		uint32_t format)
{
	struct fb_cmap *cmap;
	int vm = flags & VOFLAG_MODESWITCHING;
	int zoom = flags & VOFLAG_SWSCALE;
	int vt_fd;

	fs = flags & VOFLAG_FULLSCREEN;

	if(pre_init_err == -2)
	{
	    mp_msg(MSGT_VO, MSGL_ERR, "Internal fatal error: config() was called before preinit()\n");
	    return -1;
	}

	if (pre_init_err) return 1;

	if (fb_mode_name && !vm) {
		mp_msg(MSGT_VO, MSGL_ERR, "-fbmode can only be used with -vm\n");
		return 1;
	}
	if (vm && (parse_fbmode_cfg(fb_mode_cfgfile) < 0))
			return 1;
	if (d_width && (fs || vm)) {
		out_width = d_width;
		out_height = d_height;
	} else {
		out_width = width;
		out_height = height;
	}
	in_width = width;
	in_height = height;
	pixel_format = format;

	if (fb_mode_name) {
		if (!(fb_mode = find_mode_by_name(fb_mode_name))) {
			mp_msg(MSGT_VO, MSGL_ERR, "can't find requested video mode\n");
			return 1;
		}
		fb_mode2fb_vinfo(fb_mode, &fb_vinfo);
	} else if (vm) {
		monitor_hfreq = str2range(monitor_hfreq_str);
		monitor_vfreq = str2range(monitor_vfreq_str);
		monitor_dotclock = str2range(monitor_dotclock_str);
		if (!monitor_hfreq || !monitor_vfreq || !monitor_dotclock) {
			mp_msg(MSGT_VO, MSGL_ERR, "you have to specify the capabilities of"
					" the monitor.\n");
			return 1;
		}
		if (!(fb_mode = find_best_mode(out_width, out_height,
					monitor_hfreq, monitor_vfreq,
					monitor_dotclock))) {
			mp_msg(MSGT_VO, MSGL_ERR, "can't find best video mode\n");
			return 1;
		}
		mp_msg(MSGT_VO, MSGL_V, "using mode %dx%d @ %.1fHz\n", fb_mode->xres,
				fb_mode->yres, vsf(fb_mode));
		fb_mode2fb_vinfo(fb_mode, &fb_vinfo);
	}
	fb_bpp_we_want = fb_bpp;
	set_bpp(&fb_vinfo, fb_bpp);
	fb_vinfo.xres_virtual = fb_vinfo.xres;
	fb_vinfo.yres_virtual = fb_vinfo.yres;

        if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_GRAPHICS) < 0) {
                mp_msg(MSGT_VO, MSGL_V, "Can't set graphics mode: %s\n", strerror(errno));
                close(fb_tty_fd);
                fb_tty_fd = -1;
        }

	if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_vinfo)) {
		mp_msg(MSGT_VO, MSGL_ERR, "Can't put VSCREENINFO: %s\n", strerror(errno));
                if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0) {
                        mp_msg(MSGT_VO, MSGL_ERR, "Can't restore text mode: %s\n", strerror(errno));
                }
		return 1;
	}

	fb_pixel_size = fb_vinfo.bits_per_pixel / 8;
	fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
		fb_vinfo.blue.length + fb_vinfo.transp.length;
	if (fb_bpp_we_want != fb_bpp)
		mp_msg(MSGT_VO, MSGL_WARN, "requested %d bpp, got %d bpp!!!\n",
				fb_bpp_we_want, fb_bpp);

	switch (fb_bpp) {
		case 32: draw_alpha_p = vo_draw_alpha_rgb32; break;
		case 24: draw_alpha_p = vo_draw_alpha_rgb24; break;
		case 16: draw_alpha_p = vo_draw_alpha_rgb16; break;
		case 15: draw_alpha_p = vo_draw_alpha_rgb15; break;
		default: return 1;
	}

	fb_xres = fb_vinfo.xres;
	fb_yres = fb_vinfo.yres;

	if (vm || fs) {
		out_width = fb_xres;
		out_height = fb_yres;
	}
	if (out_width < in_width || out_height < in_height) {
		mp_msg(MSGT_VO, MSGL_ERR, "screensize is smaller than video size\n");
		return 1;
	}

	first_row = (out_height - in_height) / 2;
	last_row = (out_height + in_height) / 2;

	if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
		mp_msg(MSGT_VO, MSGL_ERR, "Can't get FSCREENINFO: %s\n", strerror(errno));
		return 1;
	}

	lots_of_printf();

	if (fb_finfo.type != FB_TYPE_PACKED_PIXELS) {
		mp_msg(MSGT_VO, MSGL_ERR, "type %d not supported\n", fb_finfo.type);
		return 1;
	}

	switch (fb_finfo.visual) {
		case FB_VISUAL_TRUECOLOR:
			break;
		case FB_VISUAL_DIRECTCOLOR:
			mp_msg(MSGT_VO, MSGL_V, "creating cmap for directcolor\n");
			if (ioctl(fb_dev_fd, FBIOGETCMAP, &fb_oldcmap)) {
				mp_msg(MSGT_VO, MSGL_ERR, "can't get cmap: %s\n",
						strerror(errno));
				return 1;
			}
			if (!(cmap = make_directcolor_cmap(&fb_vinfo)))
				return 1;
			if (ioctl(fb_dev_fd, FBIOPUTCMAP, cmap)) {
				mp_msg(MSGT_VO, MSGL_ERR, "can't put cmap: %s\n",
						strerror(errno));
				return 1;
			}
			fb_cmap_changed = 1;
			free(cmap->red);
			free(cmap->green);
			free(cmap->blue);
			free(cmap);
			break;
		default:
			mp_msg(MSGT_VO, MSGL_ERR, "visual: %d not yet supported\n",
					fb_finfo.visual);
			return 1;
	}

	fb_line_len = fb_finfo.line_length;
	fb_size = fb_finfo.smem_len;
	frame_buffer = NULL;
#ifdef CONFIG_VIDIX
	if(vidix_name)
	{
	    unsigned image_width,image_height,x_offset,y_offset;
	    if(zoom || fs){
		aspect_save_orig(width,height);
		aspect_save_prescale(d_width,d_height);
		aspect_save_screenres(fb_xres,fb_yres);
		aspect(&image_width,&image_height,fs ? A_ZOOM : A_NOZOOM);
	    } else {
		image_width=width;
		image_height=height;
	    }

		if(fb_xres > image_width)
		    x_offset = (fb_xres - image_width) / 2;
		else x_offset = 0;
		if(fb_yres > image_height)
		    y_offset = (fb_yres - image_height) / 2;
		else y_offset = 0;

		if(vidix_init(width,height,x_offset,y_offset,image_width,
			    image_height,format,fb_bpp,
			    fb_xres,fb_yres) != 0)
		{
		    mp_msg(MSGT_VO, MSGL_ERR, "Can't initialize VIDIX driver\n");
		    vidix_name = NULL;
		    vidix_term();
		    return -1;
		}
		else mp_msg(MSGT_VO, MSGL_V, "Using VIDIX\n");
		vidix_start();
		if (vidix_grkey_support())
		{
		    vidix_grkey_get(&gr_key);
		    gr_key.key_op = KEYS_PUT;
		    if (!(vo_colorkey & 0xff000000))
		    {
			gr_key.ckey.op = CKEY_TRUE;
			gr_key.ckey.red = (vo_colorkey & 0x00ff0000) >> 16;
			gr_key.ckey.green = (vo_colorkey & 0x0000ff00) >> 8;
			gr_key.ckey.blue = vo_colorkey & 0x000000ff;
		    }
		    else
			gr_key.ckey.op = CKEY_FALSE;
		    vidix_grkey_set(&gr_key);
		}
	}
	else
#endif
	{
	    int x_offset=0,y_offset=0;
	    if ((frame_buffer = (uint8_t *) mmap(0, fb_size, PROT_READ | PROT_WRITE,
				    MAP_SHARED, fb_dev_fd, 0)) == (uint8_t *) -1) {
		mp_msg(MSGT_VO, MSGL_ERR, "Can't mmap %s: %s\n", fb_dev_name, strerror(errno));
		return 1;
	    }

	    center = frame_buffer +
		    ( (out_width - in_width) / 2 ) * fb_pixel_size +
		    ( (out_height - in_height) / 2 ) * fb_line_len +
		    x_offset * fb_pixel_size + y_offset * fb_line_len;

	    mp_msg(MSGT_VO, MSGL_DBG2, "frame_buffer @ %p\n", frame_buffer);
	    mp_msg(MSGT_VO, MSGL_DBG2, "center @ %p\n", center);
	    mp_msg(MSGT_VO, MSGL_V, "pixel per line: %d\n", fb_line_len / fb_pixel_size);

	    if (fs || vm)
		memset(frame_buffer, '\0', fb_line_len * fb_yres);
	}
	if (vt_doit && (vt_fd = open("/dev/tty", O_WRONLY)) == -1) {
		mp_msg(MSGT_VO, MSGL_ERR, "can't open /dev/tty: %s\n", strerror(errno));
		vt_doit = 0;
	}
	if (vt_doit && !(vt_fp = fdopen(vt_fd, "w"))) {
		mp_msg(MSGT_VO, MSGL_ERR, "can't fdopen /dev/tty: %s\n", strerror(errno));
		vt_doit = 0;
	}

	if (vt_doit)
		vt_set_textarea(last_row, fb_yres);

	return 0;
}

static int query_format(uint32_t format)
{
	if (!fb_preinit(0))
		return 0;
#ifdef CONFIG_VIDIX
	if(vidix_name)
		return (vidix_query_fourcc(format));
#endif
	if ((format & IMGFMT_BGR_MASK) == IMGFMT_BGR) {
		int bpp = format & 0xff;

		if (bpp == fb_bpp)
			return VFCAP_ACCEPT_STRIDE | VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
	}
	return 0;
}

static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
		unsigned char *srca, int stride)
{
	unsigned char *dst;

	dst = center + fb_line_len * y0 + fb_pixel_size * x0;

	(*draw_alpha_p)(w, h, src, srca, stride, dst, fb_line_len);
}

static int draw_frame(uint8_t *src[]) { return 1; }

static int draw_slice(uint8_t *src[], int stride[], int w, int h, int x,
		int y)
{
	uint8_t *d;
	uint8_t *s;

	d = center + fb_line_len * y + fb_pixel_size * x;

	s = src[0];
	while (h) {
		memcpy(d, s, w * fb_pixel_size);
		d += fb_line_len;
		s += stride[0];
		h--;
	}

	return 0;
}

static void check_events(void)
{
}

static void flip_page(void)
{
}

static void draw_osd(void)
{
	vo_draw_text(in_width, in_height, draw_alpha);
}

static void uninit(void)
{
	if (fb_cmap_changed) {
		if (ioctl(fb_dev_fd, FBIOPUTCMAP, &fb_oldcmap))
			mp_msg(MSGT_VO, MSGL_WARN, "Can't restore original cmap\n");
		fb_cmap_changed = 0;
	}
	if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo))
		mp_msg(MSGT_VO, MSGL_WARN, "ioctl FBIOGET_VSCREENINFO: %s\n", strerror(errno));
	fb_orig_vinfo.xoffset = fb_vinfo.xoffset;
	fb_orig_vinfo.yoffset = fb_vinfo.yoffset;
	if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_orig_vinfo))
		mp_msg(MSGT_VO, MSGL_WARN, "Can't reset original fb_var_screeninfo: %s\n", strerror(errno));
        if (fb_tty_fd >= 0) {
                if (ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0)
                        mp_msg(MSGT_VO, MSGL_WARN, "Can't restore text mode: %s\n", strerror(errno));
        }
	if (vt_doit)
		vt_set_textarea(0, fb_orig_vinfo.yres);
        close(fb_tty_fd);
	close(fb_dev_fd);
	if(frame_buffer) munmap(frame_buffer, fb_size);
	frame_buffer = NULL;
#ifdef CONFIG_VIDIX
	if(vidix_name) vidix_term();
#endif
	fb_preinit(1);
}

static int preinit(const char *vo_subdevice)
{
    pre_init_err = 0;

    if(vo_subdevice)
    {
#ifdef CONFIG_VIDIX
	if (memcmp(vo_subdevice, "vidix", 5) == 0)
	    vidix_name = &vo_subdevice[5];
	if(vidix_name)
	    pre_init_err = vidix_preinit(vidix_name,&video_out_fbdev);
	else
#endif
	{
	    if (fb_dev_name) free(fb_dev_name);
	    fb_dev_name = strdup(vo_subdevice);
	}
    }
    if(!pre_init_err) return (pre_init_err=(fb_preinit(0)?0:-1));
    return(-1);
}

static uint32_t get_image(mp_image_t *mpi)
{
    if (
	!IMGFMT_IS_BGR(mpi->imgfmt) ||
	(IMGFMT_BGR_DEPTH(mpi->imgfmt) != fb_bpp) ||
	((mpi->type != MP_IMGTYPE_STATIC) && (mpi->type != MP_IMGTYPE_TEMP)) ||
	(mpi->flags & MP_IMGFLAG_PLANAR) ||
	(mpi->flags & MP_IMGFLAG_YUV) ||
	(mpi->width != in_width) ||
	(mpi->height != in_height)
       )
    return(VO_FALSE);

    mpi->planes[0] = center;
    mpi->stride[0] = fb_line_len;
    mpi->flags |= MP_IMGFLAG_DIRECT;
    return(VO_TRUE);
}

static int control(uint32_t request, void *data, ...)
{
  switch (request) {
  case VOCTRL_GET_IMAGE:
    return get_image(data);
  case VOCTRL_QUERY_FORMAT:
    return query_format(*((uint32_t*)data));
  }

#ifdef CONFIG_VIDIX
  if (vidix_name) {
      switch (request) {
      case VOCTRL_SET_EQUALIZER:
	  {
	      va_list ap;
	      int value;
	      
	      va_start(ap, data);
	      value = va_arg(ap, int);
	      va_end(ap);
	      
	      return vidix_control(request, data, value);
         }
      case VOCTRL_GET_EQUALIZER:
	  {
	      va_list ap;
	      int *value;
	      
	      va_start(ap, data);
	      value = va_arg(ap, int*);
	      va_end(ap);
	      
	      return vidix_control(request, data, value);
	  }
      }
  }
#endif

  return VO_NOTIMPL;
}