libvo/vo_fbdev.c

   1 /*
   2  * Video driver for Framebuffer device
   3  * by Szabolcs Berecz <szabi@inf.elte.hu>
   4  * (C) 2001
   5  *
   6  * Some idea and code borrowed from Chris Lawrence's ppmtofb-0.27
   7  * Some fixes and small improvements by Joey Parrish <joey@nicewarrior.org>
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <fcntl.h>
  14 #include <unistd.h>
  15 #include <errno.h>
  16 #include <ctype.h>
  17
  18 #include <sys/mman.h>
  19 #include <sys/ioctl.h>
  20 #include <sys/kd.h>
  21 #include <linux/fb.h>
  22
  23 #include "config.h"
  24 #include "video_out.h"
  25 #include "video_out_internal.h"
  26 #include "fastmemcpy.h"
  27 #include "sub.h"
  28 #ifdef CONFIG_VIDIX
  29 #include "vosub_vidix.h"
  30 #endif
  31 #include "aspect.h"
  32 #include "mp_msg.h"
  33
  34 static const vo_info_t info = {
  35         "Framebuffer Device",
  36         "fbdev",
  37         "Szabolcs Berecz <szabi@inf.elte.hu>",
  38         ""
  39 };
  40
  41 LIBVO_EXTERN(fbdev)
  42
  43 #ifdef CONFIG_VIDIX
  44 /* Name of VIDIX driver */
  45 static const char *vidix_name = NULL;
  46 static vidix_grkey_t gr_key;
  47 #endif
  48 static signed int pre_init_err = -2;
  49 /******************************
  50 *       fb.modes support      *
  51 ******************************/
  52
  53 static range_t *monitor_hfreq = NULL;
  54 static range_t *monitor_vfreq = NULL;
  55 static range_t *monitor_dotclock = NULL;
  56
  57 typedef struct {
  58         char *name;
  59         uint32_t xres, yres, vxres, vyres, depth;
  60         uint32_t pixclock, left, right, upper, lower, hslen, vslen;
  61         uint32_t sync;
  62         uint32_t vmode;
  63 } fb_mode_t;
  64
  65 #define MAX_NR_TOKEN    16
  66
  67 #define MAX_LINE_LEN    1000
  68
  69 #define RET_EOF         -1
  70 #define RET_EOL         -2
  71
  72 static int validate_mode(fb_mode_t *m)
  73 {
  74         if (!m->xres) {
  75                 mp_msg(MSGT_VO, MSGL_V, "needs geometry ");
  76                 return 0;
  77         }
  78         if (!m->pixclock) {
  79                 mp_msg(MSGT_VO, MSGL_V, "needs timings ");
  80                 return 0;
  81         }
  82         return 1;
  83 }
  84
  85 static FILE *fp;
  86 static int line_num = 0;
  87 static char *line;
  88 static char *token[MAX_NR_TOKEN];
  89
  90 static int get_token(int num)
  91 {
  92         static int read_nextline = 1;
  93         static int line_pos;
  94         int i;
  95         char c;
  96
  97         if (num >= MAX_NR_TOKEN) {
  98                 mp_msg(MSGT_VO, MSGL_V, "get_token(): max >= MAX_NR_TOKEN!\n");
  99                 goto out_eof;
 100         }
 101
 102         if (read_nextline) {
 103                 if (!fgets(line, MAX_LINE_LEN, fp))
 104                         goto out_eof;
 105                 line_pos = 0;
 106                 ++line_num;
 107                 read_nextline = 0;
 108         }
 109         for (i = 0; i < num; i++) {
 110                 while (isspace(line[line_pos]))
 111                         ++line_pos;
 112                 if (line[line_pos] == '\0' || line[line_pos] == '#') {
 113                         read_nextline = 1;
 114                         goto out_eol;
 115                 }
 116                 token[i] = line + line_pos;
 117                 c = line[line_pos];
 118                 if (c == '"' || c == '\'') {
 119                         token[i]++;
 120                         while (line[++line_pos] != c && line[line_pos])
 121                                 /* NOTHING */;
 122                         if (!line[line_pos])
 123                                 goto out_eol;
 124                         line[line_pos] = ' ';
 125                 } else {
 126                         for (/* NOTHING */; !isspace(line[line_pos]) &&
 127                                         line[line_pos]; line_pos++)
 128                                 /* NOTHING */;
 129                 }
 130                 if (!line[line_pos]) {
 131                         read_nextline = 1;
 132                         if (i == num - 1)
 133                                 goto out_ok;
 134                         goto out_eol;
 135                 }
 136                 line[line_pos++] = '\0';
 137         }
 138 out_ok:
 139         return i;
 140 out_eof:
 141         return RET_EOF;
 142 out_eol:
 143         return RET_EOL;
 144 }
 145
 146 static fb_mode_t *fb_modes = NULL;
 147 static int nr_modes = 0;
 148
 149 static int parse_fbmode_cfg(char *cfgfile)
 150 {
 151 #define CHECK_IN_MODE_DEF\
 152         if (!in_mode_def) {\
 153                 mp_msg(MSGT_VO, MSGL_V, "'needs 'mode' first");\
 154                 goto err_out_print_linenum;\
 155         }
 156         fb_mode_t *mode = NULL;
 157         char *endptr;   // strtoul()...
 158         int in_mode_def = 0;
 159         int tmp, i;
 160
 161         /* If called more than once, reuse parsed data */
 162         if (nr_modes)
 163                 return nr_modes;
 164
 165         mp_msg(MSGT_VO, MSGL_V, "Reading %s: ", cfgfile);
 166
 167         if ((fp = fopen(cfgfile, "r")) == NULL) {
 168                 mp_msg(MSGT_VO, MSGL_V, "can't open '%s': %s\n", cfgfile, strerror(errno));
 169                 return -1;
 170         }
 171
 172         if ((line = (char *) malloc(MAX_LINE_LEN + 1)) == NULL) {
 173                 mp_msg(MSGT_VO, MSGL_V, "can't get memory for 'line': %s\n", strerror(errno));
 174                 return -2;
 175         }
 176
 177         /*
 178          * check if the cfgfile starts with 'mode'
 179          */
 180         while ((tmp = get_token(1)) == RET_EOL)
 181                 /* NOTHING */;
 182         if (tmp == RET_EOF)
 183                 goto out;
 184         if (!strcmp(token[0], "mode"))
 185                 goto loop_enter;
 186         goto err_out_parse_error;
 187
 188         while ((tmp = get_token(1)) != RET_EOF) {
 189                 if (tmp == RET_EOL)
 190                         continue;
 191                 if (!strcmp(token[0], "mode")) {
 192                         if (in_mode_def) {
 193                                 mp_msg(MSGT_VO, MSGL_V, "'endmode' required");
 194                                 goto err_out_print_linenum;
 195                         }
 196                         if (!validate_mode(mode))
 197                                 goto err_out_not_valid;
 198                 loop_enter:
 199                         if (!(fb_modes = (fb_mode_t *) realloc(fb_modes,
 200                                 sizeof(fb_mode_t) * (nr_modes + 1)))) {
 201                             mp_msg(MSGT_VO, MSGL_V, "can't realloc 'fb_modes' (nr_modes = %d):"
 202                                             " %s\n", nr_modes, strerror(errno));
 203                             goto err_out;
 204                         }
 205                         mode=fb_modes + nr_modes;
 206                         ++nr_modes;
 207                         memset(mode,0,sizeof(fb_mode_t));
 208
 209                         if (get_token(1) < 0)
 210                                 goto err_out_parse_error;
 211                         for (i = 0; i < nr_modes - 1; i++) {
 212                                 if (!strcmp(token[0], fb_modes[i].name)) {
 213                                         mp_msg(MSGT_VO, MSGL_V, "mode name '%s' isn't unique", token[0]);
 214                                         goto err_out_print_linenum;
 215                                 }
 216                         }
 217                         if (!(mode->name = strdup(token[0]))) {
 218                                 mp_msg(MSGT_VO, MSGL_V, "can't strdup -> 'name': %s\n", strerror(errno));
 219                                 goto err_out;
 220                         }
 221                         in_mode_def = 1;
 222                 } else if (!strcmp(token[0], "geometry")) {
 223                         CHECK_IN_MODE_DEF;
 224                         if (get_token(5) < 0)
 225                                 goto err_out_parse_error;
 226                         mode->xres = strtoul(token[0], &endptr, 0);
 227                         if (*endptr)
 228                                 goto err_out_parse_error;
 229                         mode->yres = strtoul(token[1], &endptr, 0);
 230                         if (*endptr)
 231                                 goto err_out_parse_error;
 232                         mode->vxres = strtoul(token[2], &endptr, 0);
 233                         if (*endptr)
 234                                 goto err_out_parse_error;
 235                         mode->vyres = strtoul(token[3], &endptr, 0);
 236                         if (*endptr)
 237                                 goto err_out_parse_error;
 238                         mode->depth = strtoul(token[4], &endptr, 0);
 239                         if (*endptr)
 240                                 goto err_out_parse_error;
 241                 } else if (!strcmp(token[0], "timings")) {
 242                         CHECK_IN_MODE_DEF;
 243                         if (get_token(7) < 0)
 244                                 goto err_out_parse_error;
 245                         mode->pixclock = strtoul(token[0], &endptr, 0);
 246                         if (*endptr)
 247                                 goto err_out_parse_error;
 248                         mode->left = strtoul(token[1], &endptr, 0);
 249                         if (*endptr)
 250                                 goto err_out_parse_error;
 251                         mode->right = strtoul(token[2], &endptr, 0);
 252                         if (*endptr)
 253                                 goto err_out_parse_error;
 254                         mode->upper = strtoul(token[3], &endptr, 0);
 255                         if (*endptr)
 256                                 goto err_out_parse_error;
 257                         mode->lower = strtoul(token[4], &endptr, 0);
 258                         if (*endptr)
 259                                 goto err_out_parse_error;
 260                         mode->hslen = strtoul(token[5], &endptr, 0);
 261                         if (*endptr)
 262                                 goto err_out_parse_error;
 263                         mode->vslen = strtoul(token[6], &endptr, 0);
 264                         if (*endptr)
 265                                 goto err_out_parse_error;
 266                 } else if (!strcmp(token[0], "endmode")) {
 267                         CHECK_IN_MODE_DEF;
 268                         in_mode_def = 0;
 269                 } else if (!strcmp(token[0], "accel")) {
 270                         CHECK_IN_MODE_DEF;
 271                         if (get_token(1) < 0)
 272                                 goto err_out_parse_error;
 273                         /*
 274                          * it's only used for text acceleration
 275                          * so we just ignore it.
 276                          */
 277                 } else if (!strcmp(token[0], "hsync")) {
 278                         CHECK_IN_MODE_DEF;
 279                         if (get_token(1) < 0)
 280                                 goto err_out_parse_error;
 281                         if (!strcmp(token[0], "low"))
 282                                 mode->sync &= ~FB_SYNC_HOR_HIGH_ACT;
 283                         else if(!strcmp(token[0], "high"))
 284                                 mode->sync |= FB_SYNC_HOR_HIGH_ACT;
 285                         else
 286                                 goto err_out_parse_error;
 287                 } else if (!strcmp(token[0], "vsync")) {
 288                         CHECK_IN_MODE_DEF;
 289                         if (get_token(1) < 0)
 290                                 goto err_out_parse_error;
 291                         if (!strcmp(token[0], "low"))
 292                                 mode->sync &= ~FB_SYNC_VERT_HIGH_ACT;
 293                         else if(!strcmp(token[0], "high"))
 294                                 mode->sync |= FB_SYNC_VERT_HIGH_ACT;
 295                         else
 296                                 goto err_out_parse_error;
 297                 } else if (!strcmp(token[0], "csync")) {
 298                         CHECK_IN_MODE_DEF;
 299                         if (get_token(1) < 0)
 300                                 goto err_out_parse_error;
 301                         if (!strcmp(token[0], "low"))
 302                                 mode->sync &= ~FB_SYNC_COMP_HIGH_ACT;
 303                         else if(!strcmp(token[0], "high"))
 304                                 mode->sync |= FB_SYNC_COMP_HIGH_ACT;
 305                         else
 306                                 goto err_out_parse_error;
 307                 } else if (!strcmp(token[0], "extsync")) {
 308                         CHECK_IN_MODE_DEF;
 309                         if (get_token(1) < 0)
 310                                 goto err_out_parse_error;
 311                         if (!strcmp(token[0], "false"))
 312                                 mode->sync &= ~FB_SYNC_EXT;
 313                         else if(!strcmp(token[0], "true"))
 314                                 mode->sync |= FB_SYNC_EXT;
 315                         else
 316                                 goto err_out_parse_error;
 317                 } else if (!strcmp(token[0], "laced")) {
 318                         CHECK_IN_MODE_DEF;
 319                         if (get_token(1) < 0)
 320                                 goto err_out_parse_error;
 321                         if (!strcmp(token[0], "false"))
 322                                 mode->vmode = FB_VMODE_NONINTERLACED;
 323                         else if (!strcmp(token[0], "true"))
 324                                 mode->vmode = FB_VMODE_INTERLACED;
 325                         else
 326                                 goto err_out_parse_error;
 327                 } else if (!strcmp(token[0], "double")) {
 328                         CHECK_IN_MODE_DEF;
 329                         if (get_token(1) < 0)
 330                                 goto err_out_parse_error;
 331                         if (!strcmp(token[0], "false"))
 332                                 ;
 333                         else if (!strcmp(token[0], "true"))
 334                                 mode->vmode = FB_VMODE_DOUBLE;
 335                         else
 336                                 goto err_out_parse_error;
 337                 } else
 338                         goto err_out_parse_error;
 339         }
 340         if (!validate_mode(mode))
 341                 goto err_out_not_valid;
 342 out:
 343         mp_msg(MSGT_VO, MSGL_V, "%d modes\n", nr_modes);
 344         free(line);
 345         fclose(fp);
 346         return nr_modes;
 347 err_out_parse_error:
 348         mp_msg(MSGT_VO, MSGL_V, "parse error");
 349 err_out_print_linenum:
 350         mp_msg(MSGT_VO, MSGL_V, " at line %d\n", line_num);
 351 err_out:
 352         if (fb_modes) {
 353                 free(fb_modes);
 354                 fb_modes = NULL;
 355         }
 356         nr_modes = 0;
 357         free(line);
 358         free(fp);
 359         return -2;
 360 err_out_not_valid:
 361         mp_msg(MSGT_VO, MSGL_V, "previous mode is not correct");
 362         goto err_out_print_linenum;
 363 }
 364
 365 static fb_mode_t *find_mode_by_name(char *name)
 366 {
 367         int i;
 368
 369         for (i = 0; i < nr_modes; i++)
 370                 if (!strcmp(name, fb_modes[i].name))
 371                         return fb_modes + i;
 372         return NULL;
 373 }
 374
 375 static float dcf(fb_mode_t *m)  //driving clock frequency
 376 {
 377         return 1e12f / m->pixclock;
 378 }
 379
 380 static float hsf(fb_mode_t *m)  //horizontal scan frequency
 381 {
 382         int htotal = m->left + m->xres + m->right + m->hslen;
 383         return dcf(m) / htotal;
 384 }
 385
 386 static float vsf(fb_mode_t *m)  //vertical scan frequency
 387 {
 388         int vtotal = m->upper + m->yres + m->lower + m->vslen;
 389         return hsf(m) / vtotal;
 390 }
 391
 392
 393 static int mode_works(fb_mode_t *m, range_t *hfreq, range_t *vfreq,
 394                 range_t *dotclock)
 395 {
 396         float h = hsf(m);
 397         float v = vsf(m);
 398         float d = dcf(m);
 399         int ret = 1;
 400
 401         mp_msg(MSGT_VO, MSGL_DBG2, "mode %dx%d:", m->xres, m->yres);
 402         if (!in_range(hfreq, h)) {
 403                 ret = 0;
 404                 mp_msg(MSGT_VO, MSGL_DBG2, " hsync out of range.");
 405         }
 406         if (!in_range(vfreq, v)) {
 407                 ret = 0;
 408                 mp_msg(MSGT_VO, MSGL_DBG2, " vsync out of range.");
 409         }
 410         if (!in_range(dotclock, d)) {
 411                 ret = 0;
 412                 mp_msg(MSGT_VO, MSGL_DBG2, " dotclock out of range.");
 413         }
 414         if (ret)
 415                 mp_msg(MSGT_VO, MSGL_DBG2, " hsync, vsync, dotclock ok.\n");
 416         else
 417                 mp_msg(MSGT_VO, MSGL_DBG2, "\n");
 418
 419         return ret;
 420 }
 421
 422 static fb_mode_t *find_best_mode(int xres, int yres, range_t *hfreq,
 423                 range_t *vfreq, range_t *dotclock)
 424 {
 425         int i;
 426         fb_mode_t *best = fb_modes;
 427         fb_mode_t *curr;
 428
 429         mp_msg(MSGT_VO, MSGL_DBG2, "Searching for first working mode\n");
 430
 431         for (i = 0; i < nr_modes; i++, best++)
 432                 if (mode_works(best, hfreq, vfreq, dotclock))
 433                         break;
 434
 435         if (i == nr_modes)
 436                 return NULL;
 437         if (i == nr_modes - 1)
 438                 return best;
 439
 440         mp_msg(MSGT_VO, MSGL_DBG2, "First working mode: %dx%d\n", best->xres, best->yres);
 441         mp_msg(MSGT_VO, MSGL_DBG2, "Searching for better modes\n");
 442
 443         for (curr = best + 1; i < nr_modes - 1; i++, curr++) {
 444                 if (!mode_works(curr, hfreq, vfreq, dotclock))
 445                         continue;
 446
 447                 if (best->xres < xres || best->yres < yres) {
 448                         if (curr->xres > best->xres || curr->yres > best->yres) {
 449                                 mp_msg(MSGT_VO, MSGL_DBG2, "better than %dx%d, which is too small.\n",
 450                                                         best->xres, best->yres);
 451                                 best = curr;
 452                         } else
 453                                 mp_msg(MSGT_VO, MSGL_DBG2, "too small.\n");
 454                 } else if (curr->xres == best->xres && curr->yres == best->yres &&
 455                                 vsf(curr) > vsf(best)) {
 456                         mp_msg(MSGT_VO, MSGL_DBG2, "faster screen refresh.\n");
 457                         best = curr;
 458                 } else if ((curr->xres <= best->xres && curr->yres <= best->yres) &&
 459                                 (curr->xres >= xres && curr->yres >= yres)) {
 460                         mp_msg(MSGT_VO, MSGL_DBG2, "better than %dx%d, which is too large.\n",
 461                                                 best->xres, best->yres);
 462                         best = curr;
 463                 } else {
 464                         if (curr->xres < xres || curr->yres < yres)
 465                                 mp_msg(MSGT_VO, MSGL_DBG2, "too small.\n");
 466                         else if (curr->xres > best->xres || curr->yres > best->yres)
 467                                 mp_msg(MSGT_VO, MSGL_DBG2, "too large.\n");
 468                         else mp_msg(MSGT_VO, MSGL_DBG2, "it's worse, don't know why.\n");
 469                 }
 470         }
 471
 472         return best;
 473 }
 474
 475 static void set_bpp(struct fb_var_screeninfo *p, int bpp)
 476 {
 477         p->bits_per_pixel = (bpp + 1) & ~1;
 478         p->red.msb_right = p->green.msb_right = p->blue.msb_right = p->transp.msb_right = 0;
 479         p->transp.offset = p->transp.length = 0;
 480         p->blue.offset = 0;
 481         switch (bpp) {
 482                 case 32:
 483                         p->transp.offset = 24;
 484                         p->transp.length = 8;
 485                 case 24:
 486                         p->red.offset = 16;
 487                         p->red.length = 8;
 488                         p->green.offset = 8;
 489                         p->green.length = 8;
 490                         p->blue.length = 8;
 491                         break;
 492                 case 16:
 493                         p->red.offset = 11;
 494                         p->green.length = 6;
 495                         p->red.length = 5;
 496                         p->green.offset = 5;
 497                         p->blue.length = 5;
 498                         break;
 499                 case 15:
 500                         p->red.offset = 10;
 501                         p->green.length = 5;
 502                         p->red.length = 5;
 503                         p->green.offset = 5;
 504                         p->blue.length = 5;
 505                         break;
 506         }
 507 }
 508
 509 static void fb_mode2fb_vinfo(fb_mode_t *m, struct fb_var_screeninfo *v)
 510 {
 511         v->xres = m->xres;
 512         v->yres = m->yres;
 513         v->xres_virtual = m->vxres;
 514         v->yres_virtual = m->vyres;
 515         set_bpp(v, m->depth);
 516         v->pixclock = m->pixclock;
 517         v->left_margin = m->left;
 518         v->right_margin = m->right;
 519         v->upper_margin = m->upper;
 520         v->lower_margin = m->lower;
 521         v->hsync_len = m->hslen;
 522         v->vsync_len = m->vslen;
 523         v->sync = m->sync;
 524         v->vmode = m->vmode;
 525 }
 526
 527
 528 /******************************
 529 *           vo_fbdev          *
 530 ******************************/
 531
 532 /* command line/config file options */
 533 char *fb_dev_name = NULL;
 534 char *fb_mode_cfgfile = NULL;
 535 char *fb_mode_name = NULL;
 536
 537 static fb_mode_t *fb_mode = NULL;
 538
 539 /* vt related variables */
 540 static FILE *vt_fp = NULL;
 541 static int vt_doit = 1;
 542
 543 /* vo_fbdev related variables */
 544 static int fb_dev_fd;
 545 static int fb_tty_fd = -1;
 546 static size_t fb_size;
 547 static uint8_t *frame_buffer;
 548 static uint8_t *center; /* thx .so :) */
 549 static struct fb_fix_screeninfo fb_finfo;
 550 static struct fb_var_screeninfo fb_orig_vinfo;
 551 static struct fb_var_screeninfo fb_vinfo;
 552 static unsigned short fb_ored[256], fb_ogreen[256], fb_oblue[256];
 553 static struct fb_cmap fb_oldcmap = { 0, 256, fb_ored, fb_ogreen, fb_oblue };
 554 static int fb_cmap_changed = 0;
 555 static int fb_pixel_size;       // 32:  4  24:  3  16:  2  15:  2
 556 static int fb_bpp;              // 32: 32  24: 24  16: 16  15: 15
 557 static int fb_bpp_we_want;      // 32: 32  24: 24  16: 16  15: 15
 558 static int fb_line_len;
 559 static int fb_xres;
 560 static int fb_yres;
 561 static void (*draw_alpha_p)(int w, int h, unsigned char *src,
 562                 unsigned char *srca, int stride, unsigned char *dst,
 563                 int dstride);
 564
 565 static int in_width;
 566 static int in_height;
 567 static int out_width;
 568 static int out_height;
 569 static int first_row;
 570 static int last_row;
 571 static uint32_t pixel_format;
 572 static int fs;
 573
 574 /*
 575  * Note: this function is completely cut'n'pasted from
 576  * Chris Lawrence's code.
 577  * (modified a bit to fit in my code...)
 578  */
 579 static struct fb_cmap *make_directcolor_cmap(struct fb_var_screeninfo *var)
 580 {
 581   /* Hopefully any DIRECTCOLOR device will have a big enough palette
 582    * to handle mapping the full color depth.
 583    * e.g. 8 bpp -> 256 entry palette
 584    *
 585    * We could handle some sort of gamma here
 586    */
 587   int i, cols, rcols, gcols, bcols;
 588   uint16_t *red, *green, *blue;
 589   struct fb_cmap *cmap;
 590
 591   rcols = 1 << var->red.length;
 592   gcols = 1 << var->green.length;
 593   bcols = 1 << var->blue.length;
 594
 595   /* Make our palette the length of the deepest color */
 596   cols = (rcols > gcols ? rcols : gcols);
 597   cols = (cols > bcols ? cols : bcols);
 598
 599   red = malloc(cols * sizeof(red[0]));
 600   if(!red) {
 601           mp_msg(MSGT_VO, MSGL_V, "Can't allocate red palette with %d entries.\n", cols);
 602           return NULL;
 603   }
 604   for(i=0; i< rcols; i++)
 605     red[i] = (65535/(rcols-1)) * i;
 606
 607   green = malloc(cols * sizeof(green[0]));
 608   if(!green) {
 609           mp_msg(MSGT_VO, MSGL_V, "Can't allocate green palette with %d entries.\n", cols);
 610           free(red);
 611           return NULL;
 612   }
 613   for(i=0; i< gcols; i++)
 614     green[i] = (65535/(gcols-1)) * i;
 615
 616   blue = malloc(cols * sizeof(blue[0]));
 617   if(!blue) {
 618           mp_msg(MSGT_VO, MSGL_V, "Can't allocate blue palette with %d entries.\n", cols);
 619           free(red);
 620           free(green);
 621           return NULL;
 622   }
 623   for(i=0; i< bcols; i++)
 624     blue[i] = (65535/(bcols-1)) * i;
 625
 626   cmap = malloc(sizeof(struct fb_cmap));
 627   if(!cmap) {
 628           mp_msg(MSGT_VO, MSGL_V, "Can't allocate color map\n");
 629           free(red);
 630           free(green);
 631           free(blue);
 632           return NULL;
 633   }
 634   cmap->start = 0;
 635   cmap->transp = 0;
 636   cmap->len = cols;
 637   cmap->red = red;
 638   cmap->blue = blue;
 639   cmap->green = green;
 640   cmap->transp = NULL;
 641
 642   return cmap;
 643 }
 644
 645
 646 static int fb_preinit(int reset)
 647 {
 648         static int fb_preinit_done = 0;
 649         static int fb_works = 0;
 650
 651         if (reset)
 652         {
 653             fb_preinit_done = 0;
 654             return 0;
 655         }
 656
 657         if (fb_preinit_done)
 658                 return fb_works;
 659
 660         if (!fb_dev_name && !(fb_dev_name = getenv("FRAMEBUFFER")))
 661                 fb_dev_name = strdup("/dev/fb0");
 662         mp_msg(MSGT_VO, MSGL_V, "using %s\n", fb_dev_name);
 663
 664         if ((fb_dev_fd = open(fb_dev_name, O_RDWR)) == -1) {
 665                 mp_msg(MSGT_VO, MSGL_ERR, "Can't open %s: %s\n", fb_dev_name, strerror(errno));
 666                 goto err_out;
 667         }
 668         if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo)) {
 669                 mp_msg(MSGT_VO, MSGL_ERR, "Can't get VSCREENINFO: %s\n", strerror(errno));
 670                 goto err_out_fd;
 671         }
 672         fb_orig_vinfo = fb_vinfo;
 673
 674         if ((fb_tty_fd = open("/dev/tty", O_RDWR)) < 0) {
 675                 mp_msg(MSGT_VO, MSGL_ERR, "notice: Can't open /dev/tty: %s\n", strerror(errno));
 676         }
 677
 678         fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
 679                 fb_vinfo.blue.length + fb_vinfo.transp.length;
 680
 681         if (fb_bpp == 8 && !vo_dbpp) {
 682                 mp_msg(MSGT_VO, MSGL_ERR, "8 bpp output is not supported.\n");
 683                 goto err_out_tty_fd;
 684         }
 685
 686         if (vo_dbpp) {
 687                 if (vo_dbpp != 15 && vo_dbpp != 16 && vo_dbpp != 24 &&
 688                                 vo_dbpp != 32) {
 689                         mp_msg(MSGT_VO, MSGL_ERR, "can't switch to %d bpp\n", vo_dbpp);
 690                         goto err_out_fd;
 691                 }
 692                 fb_bpp = vo_dbpp;
 693         }
 694
 695         if (!fb_mode_cfgfile)
 696             fb_mode_cfgfile = strdup("/etc/fb.modes");
 697
 698         fb_preinit_done = 1;
 699         fb_works = 1;
 700         return 1;
 701 err_out_tty_fd:
 702         close(fb_tty_fd);
 703         fb_tty_fd = -1;
 704 err_out_fd:
 705         close(fb_dev_fd);
 706         fb_dev_fd = -1;
 707 err_out:
 708         fb_preinit_done = 1;
 709         fb_works = 0;
 710         return 0;
 711 }
 712
 713 static void lots_of_printf(void)
 714 {
 715         mp_msg(MSGT_VO, MSGL_V, "var info:\n");
 716         mp_msg(MSGT_VO, MSGL_V, "xres: %u\n", fb_vinfo.xres);
 717         mp_msg(MSGT_VO, MSGL_V, "yres: %u\n", fb_vinfo.yres);
 718         mp_msg(MSGT_VO, MSGL_V, "xres_virtual: %u\n", fb_vinfo.xres_virtual);
 719         mp_msg(MSGT_VO, MSGL_V, "yres_virtual: %u\n", fb_vinfo.yres_virtual);
 720         mp_msg(MSGT_VO, MSGL_V, "xoffset: %u\n", fb_vinfo.xoffset);
 721         mp_msg(MSGT_VO, MSGL_V, "yoffset: %u\n", fb_vinfo.yoffset);
 722         mp_msg(MSGT_VO, MSGL_V, "bits_per_pixel: %u\n", fb_vinfo.bits_per_pixel);
 723         mp_msg(MSGT_VO, MSGL_V, "grayscale: %u\n", fb_vinfo.grayscale);
 724         mp_msg(MSGT_VO, MSGL_V, "red: %lu %lu %lu\n",
 725                         (unsigned long) fb_vinfo.red.offset,
 726                         (unsigned long) fb_vinfo.red.length,
 727                         (unsigned long) fb_vinfo.red.msb_right);
 728         mp_msg(MSGT_VO, MSGL_V, "green: %lu %lu %lu\n",
 729                         (unsigned long) fb_vinfo.green.offset,
 730                         (unsigned long) fb_vinfo.green.length,
 731                         (unsigned long) fb_vinfo.green.msb_right);
 732         mp_msg(MSGT_VO, MSGL_V, "blue: %lu %lu %lu\n",
 733                         (unsigned long) fb_vinfo.blue.offset,
 734                         (unsigned long) fb_vinfo.blue.length,
 735                         (unsigned long) fb_vinfo.blue.msb_right);
 736         mp_msg(MSGT_VO, MSGL_V, "transp: %lu %lu %lu\n",
 737                         (unsigned long) fb_vinfo.transp.offset,
 738                         (unsigned long) fb_vinfo.transp.length,
 739                         (unsigned long) fb_vinfo.transp.msb_right);
 740         mp_msg(MSGT_VO, MSGL_V, "nonstd: %u\n", fb_vinfo.nonstd);
 741         mp_msg(MSGT_VO, MSGL_DBG2, "activate: %u\n", fb_vinfo.activate);
 742         mp_msg(MSGT_VO, MSGL_DBG2, "height: %u\n", fb_vinfo.height);
 743         mp_msg(MSGT_VO, MSGL_DBG2, "width: %u\n", fb_vinfo.width);
 744         mp_msg(MSGT_VO, MSGL_DBG2, "accel_flags: %u\n", fb_vinfo.accel_flags);
 745         mp_msg(MSGT_VO, MSGL_DBG2, "timing:\n");
 746         mp_msg(MSGT_VO, MSGL_DBG2, "pixclock: %u\n", fb_vinfo.pixclock);
 747         mp_msg(MSGT_VO, MSGL_DBG2, "left_margin: %u\n", fb_vinfo.left_margin);
 748         mp_msg(MSGT_VO, MSGL_DBG2, "right_margin: %u\n", fb_vinfo.right_margin);
 749         mp_msg(MSGT_VO, MSGL_DBG2, "upper_margin: %u\n", fb_vinfo.upper_margin);
 750         mp_msg(MSGT_VO, MSGL_DBG2, "lower_margin: %u\n", fb_vinfo.lower_margin);
 751         mp_msg(MSGT_VO, MSGL_DBG2, "hsync_len: %u\n", fb_vinfo.hsync_len);
 752         mp_msg(MSGT_VO, MSGL_DBG2, "vsync_len: %u\n", fb_vinfo.vsync_len);
 753         mp_msg(MSGT_VO, MSGL_DBG2, "sync: %u\n", fb_vinfo.sync);
 754         mp_msg(MSGT_VO, MSGL_DBG2, "vmode: %u\n", fb_vinfo.vmode);
 755         mp_msg(MSGT_VO, MSGL_V, "fix info:\n");
 756         mp_msg(MSGT_VO, MSGL_V, "framebuffer size: %d bytes\n", fb_finfo.smem_len);
 757         mp_msg(MSGT_VO, MSGL_V, "type: %lu\n", (unsigned long) fb_finfo.type);
 758         mp_msg(MSGT_VO, MSGL_V, "type_aux: %lu\n", (unsigned long) fb_finfo.type_aux);
 759         mp_msg(MSGT_VO, MSGL_V, "visual: %lu\n", (unsigned long) fb_finfo.visual);
 760         mp_msg(MSGT_VO, MSGL_V, "line_length: %lu bytes\n", (unsigned long) fb_finfo.line_length);
 761         mp_msg(MSGT_VO, MSGL_DBG2, "id: %.16s\n", fb_finfo.id);
 762         mp_msg(MSGT_VO, MSGL_DBG2, "smem_start: %p\n", (void *) fb_finfo.smem_start);
 763         mp_msg(MSGT_VO, MSGL_DBG2, "xpanstep: %u\n", fb_finfo.xpanstep);
 764         mp_msg(MSGT_VO, MSGL_DBG2, "ypanstep: %u\n", fb_finfo.ypanstep);
 765         mp_msg(MSGT_VO, MSGL_DBG2, "ywrapstep: %u\n", fb_finfo.ywrapstep);
 766         mp_msg(MSGT_VO, MSGL_DBG2, "mmio_start: %p\n", (void *) fb_finfo.mmio_start);
 767         mp_msg(MSGT_VO, MSGL_DBG2, "mmio_len: %u bytes\n", fb_finfo.mmio_len);
 768         mp_msg(MSGT_VO, MSGL_DBG2, "accel: %u\n", fb_finfo.accel);
 769         mp_msg(MSGT_VO, MSGL_V, "fb_bpp: %d\n", fb_bpp);
 770         mp_msg(MSGT_VO, MSGL_V, "fb_pixel_size: %d bytes\n", fb_pixel_size);
 771         mp_msg(MSGT_VO, MSGL_V, "other:\n");
 772         mp_msg(MSGT_VO, MSGL_V, "in_width: %d\n", in_width);
 773         mp_msg(MSGT_VO, MSGL_V, "in_height: %d\n", in_height);
 774         mp_msg(MSGT_VO, MSGL_V, "out_width: %d\n", out_width);
 775         mp_msg(MSGT_VO, MSGL_V, "out_height: %d\n", out_height);
 776         mp_msg(MSGT_VO, MSGL_V, "first_row: %d\n", first_row);
 777         mp_msg(MSGT_VO, MSGL_V, "last_row: %d\n", last_row);
 778         mp_msg(MSGT_VO, MSGL_DBG2, "draw_alpha_p:%dbpp = %p\n", fb_bpp, draw_alpha_p);
 779 }
 780
 781 static void vt_set_textarea(int u, int l)
 782 {
 783         /* how can I determine the font height?
 784          * just use 16 for now
 785          */
 786         int urow = ((u + 15) / 16) + 1;
 787         int lrow = l / 16;
 788
 789         mp_msg(MSGT_VO, MSGL_DBG2, "vt_set_textarea(%d,%d): %d,%d\n", u, l, urow, lrow);
 790         if(vt_fp) {
 791           fprintf(vt_fp, "\33[%d;%dr\33[%d;%dH", urow, lrow, lrow, 0);
 792           fflush(vt_fp);
 793         }
 794 }
 795
 796 static int config(uint32_t width, uint32_t height, uint32_t d_width,
 797                 uint32_t d_height, uint32_t flags, char *title,
 798                 uint32_t format)
 799 {
 800         struct fb_cmap *cmap;
 801         int vm = flags & VOFLAG_MODESWITCHING;
 802         int zoom = flags & VOFLAG_SWSCALE;
 803         int vt_fd;
 804
 805         fs = flags & VOFLAG_FULLSCREEN;
 806
 807         if(pre_init_err == -2)
 808         {
 809             mp_msg(MSGT_VO, MSGL_ERR, "Internal fatal error: config() was called before preinit()\n");
 810             return -1;
 811         }
 812
 813         if (pre_init_err) return 1;
 814
 815         if (fb_mode_name && !vm) {
 816                 mp_msg(MSGT_VO, MSGL_ERR, "-fbmode can only be used with -vm\n");
 817                 return 1;
 818         }
 819         if (vm && (parse_fbmode_cfg(fb_mode_cfgfile) < 0))
 820                         return 1;
 821         if (d_width && (fs || vm)) {
 822                 out_width = d_width;
 823                 out_height = d_height;
 824         } else {
 825                 out_width = width;
 826                 out_height = height;
 827         }
 828         in_width = width;
 829         in_height = height;
 830         pixel_format = format;
 831
 832         if (fb_mode_name) {
 833                 if (!(fb_mode = find_mode_by_name(fb_mode_name))) {
 834                         mp_msg(MSGT_VO, MSGL_ERR, "can't find requested video mode\n");
 835                         return 1;
 836                 }
 837                 fb_mode2fb_vinfo(fb_mode, &fb_vinfo);
 838         } else if (vm) {
 839                 monitor_hfreq = str2range(monitor_hfreq_str);
 840                 monitor_vfreq = str2range(monitor_vfreq_str);
 841                 monitor_dotclock = str2range(monitor_dotclock_str);
 842                 if (!monitor_hfreq || !monitor_vfreq || !monitor_dotclock) {
 843                         mp_msg(MSGT_VO, MSGL_ERR, "you have to specify the capabilities of"
 844                                         " the monitor.\n");
 845                         return 1;
 846                 }
 847                 if (!(fb_mode = find_best_mode(out_width, out_height,
 848                                         monitor_hfreq, monitor_vfreq,
 849                                         monitor_dotclock))) {
 850                         mp_msg(MSGT_VO, MSGL_ERR, "can't find best video mode\n");
 851                         return 1;
 852                 }
 853                 mp_msg(MSGT_VO, MSGL_V, "using mode %dx%d @ %.1fHz\n", fb_mode->xres,
 854                                 fb_mode->yres, vsf(fb_mode));
 855                 fb_mode2fb_vinfo(fb_mode, &fb_vinfo);
 856         }
 857         fb_bpp_we_want = fb_bpp;
 858         set_bpp(&fb_vinfo, fb_bpp);
 859         fb_vinfo.xres_virtual = fb_vinfo.xres;
 860         fb_vinfo.yres_virtual = fb_vinfo.yres;
 861
 862         if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_GRAPHICS) < 0) {
 863                 mp_msg(MSGT_VO, MSGL_V, "Can't set graphics mode: %s\n", strerror(errno));
 864                 close(fb_tty_fd);
 865                 fb_tty_fd = -1;
 866         }
 867
 868         if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_vinfo)) {
 869                 mp_msg(MSGT_VO, MSGL_ERR, "Can't put VSCREENINFO: %s\n", strerror(errno));
 870                 if (fb_tty_fd >= 0 && ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0) {
 871                         mp_msg(MSGT_VO, MSGL_ERR, "Can't restore text mode: %s\n", strerror(errno));
 872                 }
 873                 return 1;
 874         }
 875
 876         fb_pixel_size = fb_vinfo.bits_per_pixel / 8;
 877         fb_bpp = fb_vinfo.red.length + fb_vinfo.green.length +
 878                 fb_vinfo.blue.length + fb_vinfo.transp.length;
 879         if (fb_bpp_we_want != fb_bpp)
 880                 mp_msg(MSGT_VO, MSGL_WARN, "requested %d bpp, got %d bpp!!!\n",
 881                                 fb_bpp_we_want, fb_bpp);
 882
 883         switch (fb_bpp) {
 884                 case 32: draw_alpha_p = vo_draw_alpha_rgb32; break;
 885                 case 24: draw_alpha_p = vo_draw_alpha_rgb24; break;
 886                 case 16: draw_alpha_p = vo_draw_alpha_rgb16; break;
 887                 case 15: draw_alpha_p = vo_draw_alpha_rgb15; break;
 888                 default: return 1;
 889         }
 890
 891         fb_xres = fb_vinfo.xres;
 892         fb_yres = fb_vinfo.yres;
 893
 894         if (vm || fs) {
 895                 out_width = fb_xres;
 896                 out_height = fb_yres;
 897         }
 898         if (out_width < in_width || out_height < in_height) {
 899                 mp_msg(MSGT_VO, MSGL_ERR, "screensize is smaller than video size\n");
 900                 return 1;
 901         }
 902
 903         first_row = (out_height - in_height) / 2;
 904         last_row = (out_height + in_height) / 2;
 905
 906         if (ioctl(fb_dev_fd, FBIOGET_FSCREENINFO, &fb_finfo)) {
 907                 mp_msg(MSGT_VO, MSGL_ERR, "Can't get FSCREENINFO: %s\n", strerror(errno));
 908                 return 1;
 909         }
 910
 911         lots_of_printf();
 912
 913         if (fb_finfo.type != FB_TYPE_PACKED_PIXELS) {
 914                 mp_msg(MSGT_VO, MSGL_ERR, "type %d not supported\n", fb_finfo.type);
 915                 return 1;
 916         }
 917
 918         switch (fb_finfo.visual) {
 919                 case FB_VISUAL_TRUECOLOR:
 920                         break;
 921                 case FB_VISUAL_DIRECTCOLOR:
 922                         mp_msg(MSGT_VO, MSGL_V, "creating cmap for directcolor\n");
 923                         if (ioctl(fb_dev_fd, FBIOGETCMAP, &fb_oldcmap)) {
 924                                 mp_msg(MSGT_VO, MSGL_ERR, "can't get cmap: %s\n",
 925                                                 strerror(errno));
 926                                 return 1;
 927                         }
 928                         if (!(cmap = make_directcolor_cmap(&fb_vinfo)))
 929                                 return 1;
 930                         if (ioctl(fb_dev_fd, FBIOPUTCMAP, cmap)) {
 931                                 mp_msg(MSGT_VO, MSGL_ERR, "can't put cmap: %s\n",
 932                                                 strerror(errno));
 933                                 return 1;
 934                         }
 935                         fb_cmap_changed = 1;
 936                         free(cmap->red);
 937                         free(cmap->green);
 938                         free(cmap->blue);
 939                         free(cmap);
 940                         break;
 941                 default:
 942                         mp_msg(MSGT_VO, MSGL_ERR, "visual: %d not yet supported\n",
 943                                         fb_finfo.visual);
 944                         return 1;
 945         }
 946
 947         fb_line_len = fb_finfo.line_length;
 948         fb_size = fb_finfo.smem_len;
 949         frame_buffer = NULL;
 950 #ifdef CONFIG_VIDIX
 951         if(vidix_name)
 952         {
 953             unsigned image_width,image_height,x_offset,y_offset;
 954             if(zoom || fs){
 955                 aspect_save_orig(width,height);
 956                 aspect_save_prescale(d_width,d_height);
 957                 aspect_save_screenres(fb_xres,fb_yres);
 958                 aspect(&image_width,&image_height,fs ? A_ZOOM : A_NOZOOM);
 959             } else {
 960                 image_width=width;
 961                 image_height=height;
 962             }
 963
 964                 if(fb_xres > image_width)
 965                     x_offset = (fb_xres - image_width) / 2;
 966                 else x_offset = 0;
 967                 if(fb_yres > image_height)
 968                     y_offset = (fb_yres - image_height) / 2;
 969                 else y_offset = 0;
 970
 971                 if(vidix_init(width,height,x_offset,y_offset,image_width,
 972                             image_height,format,fb_bpp,
 973                             fb_xres,fb_yres) != 0)
 974                 {
 975                     mp_msg(MSGT_VO, MSGL_ERR, "Can't initialize VIDIX driver\n");
 976                     vidix_name = NULL;
 977                     vidix_term();
 978                     return -1;
 979                 }
 980                 else mp_msg(MSGT_VO, MSGL_V, "Using VIDIX\n");
 981                 vidix_start();
 982                 if (vidix_grkey_support())
 983                 {
 984                     vidix_grkey_get(&gr_key);
 985                     gr_key.key_op = KEYS_PUT;
 986                     if (!(vo_colorkey & 0xff000000))
 987                     {
 988                         gr_key.ckey.op = CKEY_TRUE;
 989                         gr_key.ckey.red = (vo_colorkey & 0x00ff0000) >> 16;
 990                         gr_key.ckey.green = (vo_colorkey & 0x0000ff00) >> 8;
 991                         gr_key.ckey.blue = vo_colorkey & 0x000000ff;
 992                     }
 993                     else
 994                         gr_key.ckey.op = CKEY_FALSE;
 995                     vidix_grkey_set(&gr_key);
 996                 }
 997         }
 998         else
 999 #endif
1000         {
1001             int x_offset=0,y_offset=0;
1002             if ((frame_buffer = (uint8_t *) mmap(0, fb_size, PROT_READ | PROT_WRITE,
1003                                     MAP_SHARED, fb_dev_fd, 0)) == (uint8_t *) -1) {
1004                 mp_msg(MSGT_VO, MSGL_ERR, "Can't mmap %s: %s\n", fb_dev_name, strerror(errno));
1005                 return 1;
1006             }
1007
1008             center = frame_buffer +
1009                     ( (out_width - in_width) / 2 ) * fb_pixel_size +
1010                     ( (out_height - in_height) / 2 ) * fb_line_len +
1011                     x_offset * fb_pixel_size + y_offset * fb_line_len;
1012
1013             mp_msg(MSGT_VO, MSGL_DBG2, "frame_buffer @ %p\n", frame_buffer);
1014             mp_msg(MSGT_VO, MSGL_DBG2, "center @ %p\n", center);
1015             mp_msg(MSGT_VO, MSGL_V, "pixel per line: %d\n", fb_line_len / fb_pixel_size);
1016
1017             if (fs || vm)
1018                 memset(frame_buffer, '\0', fb_line_len * fb_yres);
1019         }
1020         if (vt_doit && (vt_fd = open("/dev/tty", O_WRONLY)) == -1) {
1021                 mp_msg(MSGT_VO, MSGL_ERR, "can't open /dev/tty: %s\n", strerror(errno));
1022                 vt_doit = 0;
1023         }
1024         if (vt_doit && !(vt_fp = fdopen(vt_fd, "w"))) {
1025                 mp_msg(MSGT_VO, MSGL_ERR, "can't fdopen /dev/tty: %s\n", strerror(errno));
1026                 vt_doit = 0;
1027         }
1028
1029         if (vt_doit)
1030                 vt_set_textarea(last_row, fb_yres);
1031
1032         return 0;
1033 }
1034
1035 static int query_format(uint32_t format)
1036 {
1037         if (!fb_preinit(0))
1038                 return 0;
1039 #ifdef CONFIG_VIDIX
1040         if(vidix_name)
1041                 return (vidix_query_fourcc(format));
1042 #endif
1043         if ((format & IMGFMT_BGR_MASK) == IMGFMT_BGR) {
1044                 int bpp = format & 0xff;
1045
1046                 if (bpp == fb_bpp)
1047                         return VFCAP_ACCEPT_STRIDE | VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW;
1048         }
1049         return 0;
1050 }
1051
1052 static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
1053                 unsigned char *srca, int stride)
1054 {
1055         unsigned char *dst;
1056
1057         dst = center + fb_line_len * y0 + fb_pixel_size * x0;
1058
1059         (*draw_alpha_p)(w, h, src, srca, stride, dst, fb_line_len);
1060 }
1061
1062 static int draw_frame(uint8_t *src[]) { return 1; }
1063
1064 static int draw_slice(uint8_t *src[], int stride[], int w, int h, int x,
1065                 int y)
1066 {
1067         uint8_t *d;
1068         uint8_t *s;
1069
1070         d = center + fb_line_len * y + fb_pixel_size * x;
1071
1072         s = src[0];
1073         while (h) {
1074                 fast_memcpy(d, s, w * fb_pixel_size);
1075                 d += fb_line_len;
1076                 s += stride[0];
1077                 h--;
1078         }
1079
1080         return 0;
1081 }
1082
1083 static void check_events(void)
1084 {
1085 }
1086
1087 static void flip_page(void)
1088 {
1089 }
1090
1091 static void draw_osd(void)
1092 {
1093         vo_draw_text(in_width, in_height, draw_alpha);
1094 }
1095
1096 static void uninit(void)
1097 {
1098         if (fb_cmap_changed) {
1099                 if (ioctl(fb_dev_fd, FBIOPUTCMAP, &fb_oldcmap))
1100                         mp_msg(MSGT_VO, MSGL_WARN, "Can't restore original cmap\n");
1101                 fb_cmap_changed = 0;
1102         }
1103         if (ioctl(fb_dev_fd, FBIOGET_VSCREENINFO, &fb_vinfo))
1104                 mp_msg(MSGT_VO, MSGL_WARN, "ioctl FBIOGET_VSCREENINFO: %s\n", strerror(errno));
1105         fb_orig_vinfo.xoffset = fb_vinfo.xoffset;
1106         fb_orig_vinfo.yoffset = fb_vinfo.yoffset;
1107         if (ioctl(fb_dev_fd, FBIOPUT_VSCREENINFO, &fb_orig_vinfo))
1108                 mp_msg(MSGT_VO, MSGL_WARN, "Can't reset original fb_var_screeninfo: %s\n", strerror(errno));
1109         if (fb_tty_fd >= 0) {
1110                 if (ioctl(fb_tty_fd, KDSETMODE, KD_TEXT) < 0)
1111                         mp_msg(MSGT_VO, MSGL_WARN, "Can't restore text mode: %s\n", strerror(errno));
1112         }
1113         if (vt_doit)
1114                 vt_set_textarea(0, fb_orig_vinfo.yres);
1115         close(fb_tty_fd);
1116         close(fb_dev_fd);
1117         if(frame_buffer) munmap(frame_buffer, fb_size);
1118         frame_buffer = NULL;
1119 #ifdef CONFIG_VIDIX
1120         if(vidix_name) vidix_term();
1121 #endif
1122         fb_preinit(1);
1123 }
1124
1125 static int preinit(const char *vo_subdevice)
1126 {
1127     pre_init_err = 0;
1128
1129     if(vo_subdevice)
1130     {
1131 #ifdef CONFIG_VIDIX
1132         if (memcmp(vo_subdevice, "vidix", 5) == 0)
1133             vidix_name = &vo_subdevice[5];
1134         if(vidix_name)
1135             pre_init_err = vidix_preinit(vidix_name,&video_out_fbdev);
1136         else
1137 #endif
1138         {
1139             if (fb_dev_name) free(fb_dev_name);
1140             fb_dev_name = strdup(vo_subdevice);
1141         }
1142     }
1143     if(!pre_init_err) return (pre_init_err=(fb_preinit(0)?0:-1));
1144     return(-1);
1145 }
1146
1147 static uint32_t get_image(mp_image_t *mpi)
1148 {
1149     if (
1150         !IMGFMT_IS_BGR(mpi->imgfmt) ||
1151         (IMGFMT_BGR_DEPTH(mpi->imgfmt) != fb_bpp) ||
1152         ((mpi->type != MP_IMGTYPE_STATIC) && (mpi->type != MP_IMGTYPE_TEMP)) ||
1153         (mpi->flags & MP_IMGFLAG_PLANAR) ||
1154         (mpi->flags & MP_IMGFLAG_YUV) ||
1155         (mpi->width != in_width) ||
1156         (mpi->height != in_height)
1157        )
1158     return(VO_FALSE);
1159
1160     mpi->planes[0] = center;
1161     mpi->stride[0] = fb_line_len;
1162     mpi->flags |= MP_IMGFLAG_DIRECT;
1163     return(VO_TRUE);
1164 }
1165
1166 static int control(uint32_t request, void *data, ...)
1167 {
1168   switch (request) {
1169   case VOCTRL_GET_IMAGE:
1170     return get_image(data);
1171   case VOCTRL_QUERY_FORMAT:
1172     return query_format(*((uint32_t*)data));
1173   }
1174
1175 #ifdef CONFIG_VIDIX
1176   if (vidix_name) {
1177       switch (request) {
1178       case VOCTRL_SET_EQUALIZER:
1179           {
1180               va_list ap;
1181               int value;
1182
1183               va_start(ap, data);
1184               value = va_arg(ap, int);
1185               va_end(ap);
1186
1187               return vidix_control(request, data, value);
1188          }
1189       case VOCTRL_GET_EQUALIZER:
1190           {
1191               va_list ap;
1192               int *value;
1193
1194               va_start(ap, data);
1195               value = va_arg(ap, int*);
1196               va_end(ap);
1197
1198               return vidix_control(request, data, value);
1199           }
1200       }
1201   }
1202 #endif
1203
1204   return VO_NOTIMPL;
1205 }