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