libvo/video_out.c

   1 /*
   2  * libvo common functions, variables used by many/all drivers.
   3  *
   4  * This file is part of MPlayer.
   5  *
   6  * MPlayer is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * MPlayer is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <assert.h>
  25 #include <stdbool.h>
  26
  27 #include <unistd.h>
  28 //#include <sys/mman.h>
  29
  30 #include "config.h"
  31 #include "options.h"
  32 #include "talloc.h"
  33 #include "video_out.h"
  34 #include "aspect.h"
  35 #include "geometry.h"
  36 #include "old_vo_wrapper.h"
  37
  38 #include "mp_msg.h"
  39 #include "help_mp.h"
  40
  41 #include "osdep/shmem.h"
  42 #ifdef CONFIG_X11
  43 #include "x11_common.h"
  44 #endif
  45 #ifdef GL_WIN32
  46 #include <windows.h>
  47 #endif
  48
  49 int xinerama_screen = -1;
  50 int xinerama_x;
  51 int xinerama_y;
  52
  53 int vo_nomouse_input = 0;
  54 int vo_grabpointer = 1;
  55 int vo_doublebuffering = 1;
  56 int vo_vsync = 0;
  57 int vo_fs = 0;
  58 int vo_fsmode = 0;
  59 float vo_panscan = 0.0f;
  60 int vo_adapter_num=0;
  61 int vo_refresh_rate=0;
  62 int vo_keepaspect=1;
  63 int vo_rootwin=0;
  64 int vo_border=1;
  65 int64_t WinID = -1;
  66
  67 int vo_pts=0; // for hw decoding
  68 float vo_fps=0;
  69
  70 char *vo_subdevice = NULL;
  71 int vo_directrendering=0;
  72
  73 int vo_colorkey = 0x0000ff00; // default colorkey is green
  74                               // (0xff000000 means that colorkey has been disabled)
  75
  76 // name to be used instead of the vo's default
  77 char *vo_winname;
  78 // title to be applied to movie window
  79 char *vo_wintitle;
  80
  81 //
  82 // Externally visible list of all vo drivers
  83 //
  84 extern struct vo_driver video_out_mga;
  85 extern struct vo_driver video_out_xmga;
  86 extern struct vo_driver video_out_x11;
  87 extern struct vo_driver video_out_xover;
  88 extern struct vo_driver video_out_xvmc;
  89 extern struct vo_driver video_out_vdpau;
  90 extern struct vo_driver video_out_xv;
  91 extern struct vo_driver video_out_gl;
  92 extern struct vo_driver video_out_gl2;
  93 extern struct vo_driver video_out_matrixview;
  94 extern struct vo_driver video_out_dga;
  95 extern struct vo_driver video_out_sdl;
  96 extern struct vo_driver video_out_3dfx;
  97 extern struct vo_driver video_out_tdfxfb;
  98 extern struct vo_driver video_out_s3fb;
  99 extern struct vo_driver video_out_wii;
 100 extern struct vo_driver video_out_null;
 101 extern struct vo_driver video_out_zr;
 102 extern struct vo_driver video_out_zr2;
 103 extern struct vo_driver video_out_bl;
 104 extern struct vo_driver video_out_fbdev;
 105 extern struct vo_driver video_out_fbdev2;
 106 extern struct vo_driver video_out_svga;
 107 extern struct vo_driver video_out_png;
 108 extern struct vo_driver video_out_ggi;
 109 extern struct vo_driver video_out_aa;
 110 extern struct vo_driver video_out_caca;
 111 extern struct vo_driver video_out_mpegpes;
 112 extern struct vo_driver video_out_yuv4mpeg;
 113 extern struct vo_driver video_out_direct3d;
 114 extern struct vo_driver video_out_directx;
 115 extern struct vo_driver video_out_kva;
 116 extern struct vo_driver video_out_dxr2;
 117 extern struct vo_driver video_out_dxr3;
 118 extern struct vo_driver video_out_ivtv;
 119 extern struct vo_driver video_out_v4l2;
 120 extern struct vo_driver video_out_jpeg;
 121 extern struct vo_driver video_out_gif89a;
 122 extern struct vo_driver video_out_vesa;
 123 extern struct vo_driver video_out_directfb;
 124 extern struct vo_driver video_out_dfbmga;
 125 extern struct vo_driver video_out_xvidix;
 126 extern struct vo_driver video_out_winvidix;
 127 extern struct vo_driver video_out_cvidix;
 128 extern struct vo_driver video_out_tdfx_vid;
 129 extern struct vo_driver video_out_xvr100;
 130 extern struct vo_driver video_out_tga;
 131 extern struct vo_driver video_out_corevideo;
 132 extern struct vo_driver video_out_quartz;
 133 extern struct vo_driver video_out_pnm;
 134 extern struct vo_driver video_out_md5sum;
 135
 136 const struct vo_driver *video_out_drivers[] =
 137 {
 138 #ifdef CONFIG_XVR100
 139         &video_out_xvr100,
 140 #endif
 141 #ifdef CONFIG_TDFX_VID
 142         &video_out_tdfx_vid,
 143 #endif
 144 #ifdef CONFIG_DIRECTX
 145         &video_out_directx,
 146 #endif
 147 #ifdef CONFIG_DIRECT3D
 148         &video_out_direct3d,
 149 #endif
 150 #ifdef CONFIG_KVA
 151         &video_out_kva,
 152 #endif
 153 #ifdef CONFIG_COREVIDEO
 154         &video_out_corevideo,
 155 #endif
 156 #ifdef CONFIG_QUARTZ
 157         &video_out_quartz,
 158 #endif
 159 #ifdef CONFIG_XMGA
 160         &video_out_xmga,
 161 #endif
 162 #ifdef CONFIG_MGA
 163         &video_out_mga,
 164 #endif
 165 #ifdef CONFIG_TDFXFB
 166         &video_out_tdfxfb,
 167 #endif
 168 #ifdef CONFIG_S3FB
 169         &video_out_s3fb,
 170 #endif
 171 #ifdef CONFIG_WII
 172         &video_out_wii,
 173 #endif
 174 #ifdef CONFIG_3DFX
 175         &video_out_3dfx,
 176 #endif
 177 #if CONFIG_VDPAU
 178         &video_out_vdpau,
 179 #endif
 180 #ifdef CONFIG_XV
 181         &video_out_xv,
 182 #endif
 183 #ifdef CONFIG_X11
 184         &video_out_x11,
 185         &video_out_xover,
 186 #endif
 187 #ifdef CONFIG_GL
 188         &video_out_gl,
 189         &video_out_gl2,
 190 #endif
 191 #ifdef CONFIG_MATRIXVIEW
 192         &video_out_matrixview,
 193 #endif
 194 #ifdef CONFIG_DGA
 195         &video_out_dga,
 196 #endif
 197 #ifdef CONFIG_SDL
 198         &video_out_sdl,
 199 #endif
 200 #ifdef CONFIG_GGI
 201         &video_out_ggi,
 202 #endif
 203 #ifdef CONFIG_FBDEV
 204         &video_out_fbdev,
 205         &video_out_fbdev2,
 206 #endif
 207 #ifdef CONFIG_SVGALIB
 208         &video_out_svga,
 209 #endif
 210 #ifdef CONFIG_AA
 211         &video_out_aa,
 212 #endif
 213 #ifdef CONFIG_CACA
 214         &video_out_caca,
 215 #endif
 216 #ifdef CONFIG_DXR2
 217         &video_out_dxr2,
 218 #endif
 219 #ifdef CONFIG_DXR3
 220         &video_out_dxr3,
 221 #endif
 222 #ifdef CONFIG_IVTV
 223         &video_out_ivtv,
 224 #endif
 225 #ifdef CONFIG_V4L2_DECODER
 226         &video_out_v4l2,
 227 #endif
 228 #ifdef CONFIG_ZR
 229         &video_out_zr,
 230         &video_out_zr2,
 231 #endif
 232 #ifdef CONFIG_BL
 233         &video_out_bl,
 234 #endif
 235 #ifdef CONFIG_VESA
 236         &video_out_vesa,
 237 #endif
 238 #ifdef CONFIG_DFBMGA
 239         &video_out_dfbmga,
 240 #endif
 241 #ifdef CONFIG_VIDIX
 242 #ifdef CONFIG_X11
 243         &video_out_xvidix,
 244 #endif
 245 #if defined(__MINGW32__) || defined(__CYGWIN__)
 246         &video_out_winvidix,
 247 #endif
 248         &video_out_cvidix,
 249 #endif
 250         &video_out_null,
 251         // should not be auto-selected
 252 #ifdef CONFIG_DIRECTFB
 253         // vo directfb can call exit() if initialization fails
 254         &video_out_directfb,
 255 #endif
 256 #if CONFIG_XVMC
 257         &video_out_xvmc,
 258 #endif
 259         &video_out_mpegpes,
 260 #ifdef CONFIG_YUV4MPEG
 261         &video_out_yuv4mpeg,
 262 #endif
 263 #ifdef CONFIG_LIBAVCODEC
 264         &video_out_png,
 265 #endif
 266 #ifdef CONFIG_JPEG
 267         &video_out_jpeg,
 268 #endif
 269 #ifdef CONFIG_GIF
 270         &video_out_gif89a,
 271 #endif
 272 #ifdef CONFIG_TGA
 273         &video_out_tga,
 274 #endif
 275 #ifdef CONFIG_PNM
 276         &video_out_pnm,
 277 #endif
 278 #ifdef CONFIG_MD5SUM
 279         &video_out_md5sum,
 280 #endif
 281         NULL
 282 };
 283
 284
 285 static int vo_preinit(struct vo *vo, const char *arg)
 286 {
 287     return vo->driver->preinit(vo, arg);
 288 }
 289
 290 int vo_control(struct vo *vo, uint32_t request, void *data)
 291 {
 292     return vo->driver->control(vo, request, data);
 293 }
 294
 295 // Return -1 if driver appears not to support a draw_image interface,
 296 // 0 otherwise (whether the driver actually drew something or not).
 297 int vo_draw_image(struct vo *vo, struct mp_image *mpi, double pts)
 298 {
 299     if (!vo->config_ok)
 300         return 0;
 301     if (vo->driver->buffer_frames) {
 302         vo->driver->draw_image(vo, mpi, pts);
 303         return 0;
 304     }
 305     vo->frame_loaded = true;
 306     vo->next_pts = pts;
 307     if (vo_control(vo, VOCTRL_DRAW_IMAGE, mpi) == VO_NOTIMPL)
 308         return -1;
 309     return 0;
 310 }
 311
 312 int vo_get_buffered_frame(struct vo *vo, bool eof)
 313 {
 314     if (!vo->config_ok)
 315         return -1;
 316     if (vo->frame_loaded)
 317         return 0;
 318     if (!vo->driver->buffer_frames)
 319         return -1;
 320     vo->driver->get_buffered_frame(vo, eof);
 321     return vo->frame_loaded ? 0 : -1;
 322 }
 323
 324 int vo_draw_frame(struct vo *vo, uint8_t *src[])
 325 {
 326     assert(!vo->driver->is_new);
 327     if (!vo->config_ok)
 328         return 0;
 329     return old_vo_draw_frame(vo, src);
 330 }
 331
 332 int vo_draw_slice(struct vo *vo, uint8_t *src[], int stride[], int w, int h, int x, int y)
 333 {
 334     return vo->driver->draw_slice(vo, src, stride, w, h, x, y);
 335 }
 336
 337 void vo_draw_osd(struct vo *vo, struct osd_state *osd)
 338 {
 339     if (!vo->config_ok)
 340         return;
 341     vo->driver->draw_osd(vo, osd);
 342 }
 343
 344 void vo_flip_page(struct vo *vo, unsigned int pts_us, int duration)
 345 {
 346     if (!vo->config_ok)
 347         return;
 348     vo->frame_loaded = false;
 349     vo->next_pts = MP_NOPTS_VALUE;
 350     if (vo->driver->flip_page_timed)
 351         vo->driver->flip_page_timed(vo, pts_us, duration);
 352     else
 353         vo->driver->flip_page(vo);
 354 }
 355
 356 void vo_check_events(struct vo *vo)
 357 {
 358     if (!vo->config_ok)
 359         return;
 360     vo->driver->check_events(vo);
 361 }
 362
 363 void vo_seek_reset(struct vo *vo)
 364 {
 365     vo_control(vo, VOCTRL_RESET, NULL);
 366     vo->frame_loaded = false;
 367 }
 368
 369 void vo_destroy(struct vo *vo)
 370 {
 371     vo->driver->uninit(vo);
 372     talloc_free(vo);
 373 }
 374
 375 void list_video_out(void)
 376 {
 377     int i = 0;
 378     mp_tmsg(MSGT_CPLAYER, MSGL_INFO, "Available video output drivers:\n");
 379     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_OUTPUTS\n");
 380     while (video_out_drivers[i]) {
 381         const vo_info_t *info = video_out_drivers[i++]->info;
 382         mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n", info->short_name, info->name);
 383     }
 384     mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
 385 }
 386
 387 struct vo *init_best_video_out(struct MPOpts *opts, struct vo_x11_state *x11,
 388                                struct mp_fifo *key_fifo,
 389                                struct input_ctx *input_ctx)
 390 {
 391     char **vo_list = opts->video_driver_list;
 392     int i;
 393     struct vo *vo = talloc_ptrtype(NULL, vo);
 394     struct vo initial_values = {
 395         .opts = opts,
 396         .x11 = x11,
 397         .key_fifo = key_fifo,
 398         .input_ctx = input_ctx,
 399     };
 400     // first try the preferred drivers, with their optional subdevice param:
 401     if (vo_list && vo_list[0])
 402         while (vo_list[0][0]) {
 403             char *name = strdup(vo_list[0]);
 404
 405             vo_subdevice = strchr(name,':');
 406             if (!strcmp(name, "pgm"))
 407                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The pgm video output driver has been replaced by -vo pnm:pgmyuv.\n");
 408             if (!strcmp(name, "md5"))
 409                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The md5 video output driver has been replaced by -vo md5sum.\n");
 410             if (vo_subdevice) {
 411                 vo_subdevice[0] = 0;
 412                 ++vo_subdevice;
 413             }
 414             for (i = 0; video_out_drivers[i]; i++) {
 415                 const struct vo_driver *video_driver = video_out_drivers[i];
 416                 const vo_info_t *info = video_driver->info;
 417                 if (!strcmp(info->short_name, name)) {
 418                     // name matches, try it
 419                     *vo = initial_values;
 420                     vo->driver = video_driver;
 421                     if (!vo_preinit(vo, vo_subdevice)) {
 422                         free(name);
 423                         return vo; // success!
 424                     }
 425                     talloc_free_children(vo);
 426                 }
 427             }
 428             // continue...
 429             free(name);
 430             ++vo_list;
 431             if (!(vo_list[0]))
 432                 return NULL; // do NOT fallback to others
 433         }
 434
 435 #ifdef GL_WIN32
 436     OSVERSIONINFO winver;
 437     memset(&winver, 0, sizeof(OSVERSIONINFO));
 438     winver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
 439     GetVersionEx(&winver);
 440
 441     if(winver.dwMajorVersion >= 6) {    // If Vista+
 442         vo_subdevice = strdup("yuv=2"); // Use -vo gl:yuv=2 by default
 443         *vo = initial_values;           // Since directdraw is deprecated
 444         vo->driver = &video_out_gl;     // And direct3d is buggy
 445         if (!vo_preinit(vo, vo_subdevice)) {
 446             free(vo_subdevice);
 447             return vo; // it works!
 448         }
 449         talloc_free_children(vo);
 450     }
 451 #endif
 452
 453     // now try the rest...
 454     vo_subdevice = NULL;
 455     for (i = 0; video_out_drivers[i]; i++) {
 456         const struct vo_driver *video_driver = video_out_drivers[i];
 457         *vo = initial_values;
 458         vo->driver = video_driver;
 459         if (!vo_preinit(vo, vo_subdevice))
 460             return vo; // success!
 461         talloc_free_children(vo);
 462     }
 463     free(vo);
 464     return NULL;
 465 }
 466
 467 int vo_config(struct vo *vo, uint32_t width, uint32_t height,
 468                      uint32_t d_width, uint32_t d_height, uint32_t flags,
 469                      char *title, uint32_t format)
 470 {
 471     struct MPOpts *opts = vo->opts;
 472     panscan_init(vo);
 473     aspect_save_orig(vo, width, height);
 474     aspect_save_prescale(vo, d_width, d_height);
 475
 476     if (vo_control(vo, VOCTRL_UPDATE_SCREENINFO, NULL) == VO_TRUE) {
 477         aspect(vo, &d_width, &d_height, A_NOZOOM);
 478         vo->dx = (int)(opts->vo_screenwidth - d_width) / 2;
 479         vo->dy = (int)(opts->vo_screenheight - d_height) / 2;
 480         geometry(&vo->dx, &vo->dy, &d_width, &d_height,
 481                  opts->vo_screenwidth, opts->vo_screenheight);
 482         vo->dx += xinerama_x;
 483         vo->dy += xinerama_y;
 484         vo->dwidth = d_width;
 485         vo->dheight = d_height;
 486     }
 487
 488     int ret = vo->driver->config(vo, width, height, d_width, d_height, flags,
 489                                  title, format);
 490     vo->config_ok = (ret == 0);
 491     vo->config_count += vo->config_ok;
 492     return ret;
 493 }
 494
 495 /**
 496  * \brief lookup an integer in a table, table must have 0 as the last key
 497  * \param key key to search for
 498  * \result translation corresponding to key or "to" value of last mapping
 499  *         if not found.
 500  */
 501 int lookup_keymap_table(const struct keymap *map, int key) {
 502   while (map->from && map->from != key) map++;
 503   return map->to;
 504 }
 505
 506 /**
 507  * \brief helper function for the kind of panscan-scaling that needs a source
 508  *        and destination rectangle like Direct3D and VDPAU
 509  */
 510 static void src_dst_split_scaling(int src_size, int dst_size, int scaled_src_size,
 511                                   int *src_start, int *src_end, int *dst_start, int *dst_end) {
 512   if (scaled_src_size > dst_size) {
 513     int border = src_size * (scaled_src_size - dst_size) / scaled_src_size;
 514     // round to a multiple of 2, this is at least needed for vo_direct3d and ATI cards
 515     border = (border / 2 + 1) & ~1;
 516     *src_start = border;
 517     *src_end   = src_size - border;
 518     *dst_start = 0;
 519     *dst_end   = dst_size;
 520   } else {
 521     *src_start = 0;
 522     *src_end   = src_size;
 523     *dst_start = (dst_size - scaled_src_size) / 2;
 524     *dst_end   = *dst_start + scaled_src_size;
 525   }
 526 }
 527
 528 /**
 529  * Calculate the appropriate source and destination rectangle to
 530  * get a correctly scaled picture, including pan-scan.
 531  * Can be extended to take future cropping support into account.
 532  *
 533  * \param crop specifies the cropping border size in the left, right, top and bottom members, may be NULL
 534  * \param borders the border values as e.g. EOSD (ASS) and properly placed DVD highlight support requires,
 535  *                may be NULL and only left and top are currently valid.
 536  */
 537 void calc_src_dst_rects(struct vo *vo, int src_width, int src_height,
 538                         struct vo_rect *src, struct vo_rect *dst,
 539                         struct vo_rect *borders, const struct vo_rect *crop)
 540 {
 541   static const struct vo_rect no_crop = {0, 0, 0, 0, 0, 0};
 542   int scaled_width  = 0;
 543   int scaled_height = 0;
 544   if (!crop) crop = &no_crop;
 545   src_width  -= crop->left + crop->right;
 546   src_height -= crop->top  + crop->bottom;
 547   if (src_width  < 2) src_width  = 2;
 548   if (src_height < 2) src_height = 2;
 549   dst->left = 0; dst->right  = vo->dwidth;
 550   dst->top  = 0; dst->bottom = vo->dheight;
 551   src->left = 0; src->right  = src_width;
 552   src->top  = 0; src->bottom = src_height;
 553   if (borders) {
 554     borders->left = 0; borders->top = 0;
 555   }
 556   if (aspect_scaling()) {
 557     aspect(vo, &scaled_width, &scaled_height, A_WINZOOM);
 558     panscan_calc_windowed(vo);
 559     scaled_width  += vo->panscan_x;
 560     scaled_height += vo->panscan_y;
 561     if (borders) {
 562       borders->left = (vo->dwidth  - scaled_width ) / 2;
 563       borders->top  = (vo->dheight - scaled_height) / 2;
 564     }
 565     src_dst_split_scaling(src_width, vo->dwidth, scaled_width,
 566                           &src->left, &src->right, &dst->left, &dst->right);
 567     src_dst_split_scaling(src_height, vo->dheight, scaled_height,
 568                           &src->top, &src->bottom, &dst->top, &dst->bottom);
 569   }
 570   src->left += crop->left; src->right  += crop->left;
 571   src->top  += crop->top;  src->bottom += crop->top;
 572   src->width  = src->right  - src->left;
 573   src->height = src->bottom - src->top;
 574   dst->width  = dst->right  - dst->left;
 575   dst->height = dst->bottom - dst->top;
 576 }
 577
 578 #if defined(CONFIG_FBDEV) || defined(CONFIG_VESA)
 579 /* Borrowed from vo_fbdev.c
 580 Monitor ranges related functions*/
 581
 582 char *monitor_hfreq_str = NULL;
 583 char *monitor_vfreq_str = NULL;
 584 char *monitor_dotclock_str = NULL;
 585
 586 float range_max(range_t *r)
 587 {
 588 float max = 0;
 589
 590         for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
 591                 if (max < r->max) max = r->max;
 592         return max;
 593 }
 594
 595
 596 int in_range(range_t *r, float f)
 597 {
 598         for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
 599                 if (f >= r->min && f <= r->max)
 600                         return 1;
 601         return 0;
 602 }
 603
 604 range_t *str2range(char *s)
 605 {
 606         float tmp_min, tmp_max;
 607         char *endptr = s;       // to start the loop
 608         range_t *r = NULL;
 609         int i;
 610
 611         if (!s)
 612                 return NULL;
 613         for (i = 0; *endptr; i++) {
 614                 if (*s == ',')
 615                         goto out_err;
 616                 if (!(r = (range_t *) realloc(r, sizeof(*r) * (i + 2)))) {
 617                         mp_msg(MSGT_GLOBAL, MSGL_WARN,"can't realloc 'r'\n");
 618                         return NULL;
 619                 }
 620                 tmp_min = strtod(s, &endptr);
 621                 if (*endptr == 'k' || *endptr == 'K') {
 622                         tmp_min *= 1000.0;
 623                         endptr++;
 624                 } else if (*endptr == 'm' || *endptr == 'M') {
 625                         tmp_min *= 1000000.0;
 626                         endptr++;
 627                 }
 628                 if (*endptr == '-') {
 629                         tmp_max = strtod(endptr + 1, &endptr);
 630                         if (*endptr == 'k' || *endptr == 'K') {
 631                                 tmp_max *= 1000.0;
 632                                 endptr++;
 633                         } else if (*endptr == 'm' || *endptr == 'M') {
 634                                 tmp_max *= 1000000.0;
 635                                 endptr++;
 636                         }
 637                         if (*endptr != ',' && *endptr)
 638                                 goto out_err;
 639                 } else if (*endptr == ',' || !*endptr) {
 640                         tmp_max = tmp_min;
 641                 } else
 642                         goto out_err;
 643                 r[i].min = tmp_min;
 644                 r[i].max = tmp_max;
 645                 if (r[i].min < 0 || r[i].max < 0)
 646                         goto out_err;
 647                 s = endptr + 1;
 648         }
 649         r[i].min = r[i].max = -1;
 650         return r;
 651 out_err:
 652         if (r)
 653                 free(r);
 654         return NULL;
 655 }
 656
 657 /* Borrowed from vo_fbdev.c END */
 658 #endif