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_zr;
  98 extern struct vo_driver video_out_zr2;
  99 extern struct vo_driver video_out_bl;
 100 extern struct vo_driver video_out_fbdev;
 101 extern struct vo_driver video_out_fbdev2;
 102 extern struct vo_driver video_out_svga;
 103 extern struct vo_driver video_out_png;
 104 extern struct vo_driver video_out_ggi;
 105 extern struct vo_driver video_out_aa;
 106 extern struct vo_driver video_out_caca;
 107 extern struct vo_driver video_out_mpegpes;
 108 extern struct vo_driver video_out_yuv4mpeg;
 109 extern struct vo_driver video_out_direct3d;
 110 extern struct vo_driver video_out_directx;
 111 extern struct vo_driver video_out_kva;
 112 extern struct vo_driver video_out_dxr2;
 113 extern struct vo_driver video_out_dxr3;
 114 extern struct vo_driver video_out_ivtv;
 115 extern struct vo_driver video_out_v4l2;
 116 extern struct vo_driver video_out_jpeg;
 117 extern struct vo_driver video_out_gif89a;
 118 extern struct vo_driver video_out_vesa;
 119 extern struct vo_driver video_out_directfb;
 120 extern struct vo_driver video_out_dfbmga;
 121 extern struct vo_driver video_out_xvidix;
 122 extern struct vo_driver video_out_winvidix;
 123 extern struct vo_driver video_out_cvidix;
 124 extern struct vo_driver video_out_tdfx_vid;
 125 extern struct vo_driver video_out_xvr100;
 126 extern struct vo_driver video_out_tga;
 127 extern struct vo_driver video_out_corevideo;
 128 extern struct vo_driver video_out_quartz;
 129 extern struct vo_driver video_out_pnm;
 130 extern struct vo_driver video_out_md5sum;
 131
 132 const struct vo_driver *video_out_drivers[] =
 133 {
 134 #ifdef CONFIG_XVR100
 135         &video_out_xvr100,
 136 #endif
 137 #ifdef CONFIG_TDFX_VID
 138         &video_out_tdfx_vid,
 139 #endif
 140 #ifdef CONFIG_DIRECTX
 141         &video_out_directx,
 142 #endif
 143 #ifdef CONFIG_DIRECT3D
 144         &video_out_direct3d,
 145 #endif
 146 #ifdef CONFIG_KVA
 147         &video_out_kva,
 148 #endif
 149 #ifdef CONFIG_COREVIDEO
 150         &video_out_corevideo,
 151 #endif
 152 #ifdef CONFIG_QUARTZ
 153         &video_out_quartz,
 154 #endif
 155 #ifdef CONFIG_XMGA
 156         &video_out_xmga,
 157 #endif
 158 #ifdef CONFIG_MGA
 159         &video_out_mga,
 160 #endif
 161 #ifdef CONFIG_TDFXFB
 162         &video_out_tdfxfb,
 163 #endif
 164 #ifdef CONFIG_S3FB
 165         &video_out_s3fb,
 166 #endif
 167 #ifdef CONFIG_WII
 168         &video_out_wii,
 169 #endif
 170 #ifdef CONFIG_3DFX
 171         &video_out_3dfx,
 172 #endif
 173 #if CONFIG_VDPAU
 174         &video_out_vdpau,
 175 #endif
 176 #ifdef CONFIG_XV
 177         &video_out_xv,
 178 #endif
 179 #ifdef CONFIG_X11
 180 #ifdef CONFIG_GL
 181         &video_out_gl_nosw,
 182 #endif
 183         &video_out_x11,
 184         &video_out_xover,
 185 #endif
 186 #ifdef CONFIG_SDL
 187         &video_out_sdl,
 188 #endif
 189 #ifdef CONFIG_GL
 190         &video_out_gl,
 191         &video_out_gl2,
 192 #endif
 193 #ifdef CONFIG_DGA
 194         &video_out_dga,
 195 #endif
 196 #ifdef CONFIG_GGI
 197         &video_out_ggi,
 198 #endif
 199 #ifdef CONFIG_FBDEV
 200         &video_out_fbdev,
 201         &video_out_fbdev2,
 202 #endif
 203 #ifdef CONFIG_SVGALIB
 204         &video_out_svga,
 205 #endif
 206 #ifdef CONFIG_MATRIXVIEW
 207         &video_out_matrixview,
 208 #endif
 209 #ifdef CONFIG_AA
 210         &video_out_aa,
 211 #endif
 212 #ifdef CONFIG_CACA
 213         &video_out_caca,
 214 #endif
 215 #ifdef CONFIG_DXR2
 216         &video_out_dxr2,
 217 #endif
 218 #ifdef CONFIG_DXR3
 219         &video_out_dxr3,
 220 #endif
 221 #ifdef CONFIG_IVTV
 222         &video_out_ivtv,
 223 #endif
 224 #ifdef CONFIG_V4L2_DECODER
 225         &video_out_v4l2,
 226 #endif
 227 #ifdef CONFIG_ZR
 228         &video_out_zr,
 229         &video_out_zr2,
 230 #endif
 231 #ifdef CONFIG_BL
 232         &video_out_bl,
 233 #endif
 234 #ifdef CONFIG_VESA
 235         &video_out_vesa,
 236 #endif
 237 #ifdef CONFIG_DIRECTFB
 238         &video_out_dfbmga,
 239 #endif
 240 #ifdef CONFIG_VIDIX
 241 #ifdef CONFIG_X11
 242         &video_out_xvidix,
 243 #endif
 244 #if defined(__MINGW32__) || defined(__CYGWIN__)
 245         &video_out_winvidix,
 246 #endif
 247         &video_out_cvidix,
 248 #endif
 249         &video_out_null,
 250         // should not be auto-selected
 251 #ifdef CONFIG_DIRECTFB
 252         // vo directfb can call exit() if initialization fails
 253         &video_out_directfb,
 254 #endif
 255 #if CONFIG_XVMC
 256         &video_out_xvmc,
 257 #endif
 258         &video_out_mpegpes,
 259 #ifdef CONFIG_YUV4MPEG
 260         &video_out_yuv4mpeg,
 261 #endif
 262 #ifdef CONFIG_FFMPEG
 263         &video_out_png,
 264 #endif
 265 #ifdef CONFIG_JPEG
 266         &video_out_jpeg,
 267 #endif
 268 #ifdef CONFIG_GIF
 269         &video_out_gif89a,
 270 #endif
 271 #ifdef CONFIG_TGA
 272         &video_out_tga,
 273 #endif
 274 #ifdef CONFIG_PNM
 275         &video_out_pnm,
 276 #endif
 277 #ifdef CONFIG_MD5SUM
 278         &video_out_md5sum,
 279 #endif
 280         NULL
 281 };
 282
 283
 284 static int vo_preinit(struct vo *vo, const char *arg)
 285 {
 286     return vo->driver->preinit(vo, arg);
 287 }
 288
 289 int vo_control(struct vo *vo, uint32_t request, void *data)
 290 {
 291     return vo->driver->control(vo, request, data);
 292 }
 293
 294 // Return -1 if driver appears not to support a draw_image interface,
 295 // 0 otherwise (whether the driver actually drew something or not).
 296 int vo_draw_image(struct vo *vo, struct mp_image *mpi, double pts)
 297 {
 298     if (!vo->config_ok)
 299         return 0;
 300     if (vo->driver->buffer_frames) {
 301         vo->driver->draw_image(vo, mpi, pts);
 302         return 0;
 303     }
 304     vo->frame_loaded = true;
 305     vo->next_pts = pts;
 306     if (vo_control(vo, VOCTRL_DRAW_IMAGE, mpi) == VO_NOTIMPL)
 307         return -1;
 308     return 0;
 309 }
 310
 311 int vo_get_buffered_frame(struct vo *vo, bool eof)
 312 {
 313     if (!vo->config_ok)
 314         return -1;
 315     if (vo->frame_loaded)
 316         return 0;
 317     if (!vo->driver->buffer_frames)
 318         return -1;
 319     vo->driver->get_buffered_frame(vo, eof);
 320     return vo->frame_loaded ? 0 : -1;
 321 }
 322
 323 int vo_draw_frame(struct vo *vo, uint8_t *src[])
 324 {
 325     assert(!vo->driver->is_new);
 326     if (!vo->config_ok)
 327         return 0;
 328     return old_vo_draw_frame(vo, src);
 329 }
 330
 331 int vo_draw_slice(struct vo *vo, uint8_t *src[], int stride[], int w, int h, int x, int y)
 332 {
 333     return vo->driver->draw_slice(vo, src, stride, w, h, x, y);
 334 }
 335
 336 void vo_draw_osd(struct vo *vo, struct osd_state *osd)
 337 {
 338     if (!vo->config_ok)
 339         return;
 340     vo->driver->draw_osd(vo, osd);
 341 }
 342
 343 void vo_flip_page(struct vo *vo, unsigned int pts_us, int duration)
 344 {
 345     if (!vo->config_ok)
 346         return;
 347     vo->frame_loaded = false;
 348     vo->next_pts = MP_NOPTS_VALUE;
 349     if (vo->driver->flip_page_timed)
 350         vo->driver->flip_page_timed(vo, pts_us, duration);
 351     else
 352         vo->driver->flip_page(vo);
 353 }
 354
 355 void vo_check_events(struct vo *vo)
 356 {
 357     if (!vo->config_ok) {
 358         if (vo->registered_fd != -1)
 359             mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
 360         vo->registered_fd = -1;
 361         return;
 362     }
 363     vo->driver->check_events(vo);
 364 }
 365
 366 void vo_seek_reset(struct vo *vo)
 367 {
 368     vo_control(vo, VOCTRL_RESET, NULL);
 369     vo->frame_loaded = false;
 370 }
 371
 372 void vo_destroy(struct vo *vo)
 373 {
 374     if (vo->registered_fd != -1)
 375         mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
 376     vo->driver->uninit(vo);
 377     talloc_free(vo);
 378 }
 379
 380 void list_video_out(void)
 381 {
 382     int i = 0;
 383     mp_tmsg(MSGT_CPLAYER, MSGL_INFO, "Available video output drivers:\n");
 384     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_OUTPUTS\n");
 385     while (video_out_drivers[i]) {
 386         const vo_info_t *info = video_out_drivers[i++]->info;
 387         mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n", info->short_name, info->name);
 388     }
 389     mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
 390 }
 391
 392 struct vo *init_best_video_out(struct MPOpts *opts, struct vo_x11_state *x11,
 393                                struct mp_fifo *key_fifo,
 394                                struct input_ctx *input_ctx)
 395 {
 396     char **vo_list = opts->video_driver_list;
 397     int i;
 398     struct vo *vo = talloc_ptrtype(NULL, vo);
 399     struct vo initial_values = {
 400         .opts = opts,
 401         .x11 = x11,
 402         .key_fifo = key_fifo,
 403         .input_ctx = input_ctx,
 404         .event_fd = -1,
 405         .registered_fd = -1,
 406     };
 407     // first try the preferred drivers, with their optional subdevice param:
 408     if (vo_list && vo_list[0])
 409         while (vo_list[0][0]) {
 410             char *name = strdup(vo_list[0]);
 411             vo_subdevice = strchr(name,':');
 412             if (!strcmp(name, "pgm"))
 413                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The pgm video output driver has been replaced by -vo pnm:pgmyuv.\n");
 414             if (!strcmp(name, "md5"))
 415                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The md5 video output driver has been replaced by -vo md5sum.\n");
 416             if (vo_subdevice) {
 417                 vo_subdevice[0] = 0;
 418                 ++vo_subdevice;
 419             }
 420             for (i = 0; video_out_drivers[i]; i++) {
 421                 const struct vo_driver *video_driver = video_out_drivers[i];
 422                 const vo_info_t *info = video_driver->info;
 423                 if (!strcmp(info->short_name, name)) {
 424                     // name matches, try it
 425                     *vo = initial_values;
 426                     vo->driver = video_driver;
 427                     if (!vo_preinit(vo, vo_subdevice)) {
 428                         free(name);
 429                         return vo; // success!
 430                     }
 431                     talloc_free_children(vo);
 432                 }
 433             }
 434             // continue...
 435             free(name);
 436             ++vo_list;
 437             if (!(vo_list[0]))
 438                 return NULL; // do NOT fallback to others
 439         }
 440     // now try the rest...
 441     vo_subdevice = NULL;
 442     for (i = 0; video_out_drivers[i]; i++) {
 443         const struct vo_driver *video_driver = video_out_drivers[i];
 444         *vo = initial_values;
 445         vo->driver = video_driver;
 446         if (!vo_preinit(vo, vo_subdevice))
 447             return vo; // success!
 448         talloc_free_children(vo);
 449     }
 450     free(vo);
 451     return NULL;
 452 }
 453
 454 static int event_fd_callback(void *ctx, int fd)
 455 {
 456     struct vo *vo = ctx;
 457     vo_check_events(vo);
 458     return mplayer_get_key(vo->key_fifo, 0);
 459 }
 460
 461 int vo_config(struct vo *vo, uint32_t width, uint32_t height,
 462                      uint32_t d_width, uint32_t d_height, uint32_t flags,
 463                      char *title, uint32_t format)
 464 {
 465     struct MPOpts *opts = vo->opts;
 466     panscan_init(vo);
 467     aspect_save_orig(vo, width, height);
 468     aspect_save_prescale(vo, d_width, d_height);
 469
 470     if (vo_control(vo, VOCTRL_UPDATE_SCREENINFO, NULL) == VO_TRUE) {
 471         aspect(vo, &d_width, &d_height, A_NOZOOM);
 472         vo->dx = (int)(opts->vo_screenwidth - d_width) / 2;
 473         vo->dy = (int)(opts->vo_screenheight - d_height) / 2;
 474         geometry(&vo->dx, &vo->dy, &d_width, &d_height,
 475                  opts->vo_screenwidth, opts->vo_screenheight);
 476         geometry_xy_changed |= xinerama_screen >= 0;
 477         vo->dx += xinerama_x;
 478         vo->dy += xinerama_y;
 479         vo->dwidth = d_width;
 480         vo->dheight = d_height;
 481     }
 482
 483     int ret = vo->driver->config(vo, width, height, d_width, d_height, flags,
 484                                  title, format);
 485     vo->config_ok = (ret == 0);
 486     vo->config_count += vo->config_ok;
 487     if (vo->registered_fd == -1 && vo->event_fd != -1 && vo->config_ok) {
 488         mp_input_add_key_fd(vo->input_ctx, vo->event_fd, 1, event_fd_callback,
 489                             NULL, vo);
 490         vo->registered_fd = vo->event_fd;
 491     }
 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 mp_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 /**
 579  * Generates a mouse movement message if those are enable and sends it
 580  * to the "main" MPlayer.
 581  *
 582  * \param posx new x position of mouse
 583  * \param posy new y position of mouse
 584  */
 585 void vo_mouse_movement(struct vo *vo, int posx, int posy)
 586 {
 587   char cmd_str[40];
 588   if (!enable_mouse_movements)
 589     return;
 590   snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i", posx, posy);
 591   mp_input_queue_cmd(vo->input_ctx, mp_input_parse_cmd(cmd_str));
 592 }
 593
 594 #if defined(CONFIG_FBDEV) || defined(CONFIG_VESA)
 595 /* Borrowed from vo_fbdev.c
 596 Monitor ranges related functions*/
 597
 598 char *monitor_hfreq_str = NULL;
 599 char *monitor_vfreq_str = NULL;
 600 char *monitor_dotclock_str = NULL;
 601
 602 float range_max(range_t *r)
 603 {
 604 float max = 0;
 605
 606         for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
 607                 if (max < r->max) max = r->max;
 608         return max;
 609 }
 610
 611
 612 int in_range(range_t *r, float f)
 613 {
 614         for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
 615                 if (f >= r->min && f <= r->max)
 616                         return 1;
 617         return 0;
 618 }
 619
 620 range_t *str2range(char *s)
 621 {
 622         float tmp_min, tmp_max;
 623         char *endptr = s;       // to start the loop
 624         range_t *r = NULL;
 625         int i;
 626
 627         if (!s)
 628                 return NULL;
 629         for (i = 0; *endptr; i++) {
 630                 if (*s == ',')
 631                         goto out_err;
 632                 if (!(r = realloc(r, sizeof(*r) * (i + 2)))) {
 633                         mp_msg(MSGT_GLOBAL, MSGL_WARN,"can't realloc 'r'\n");
 634                         return NULL;
 635                 }
 636                 tmp_min = strtod(s, &endptr);
 637                 if (*endptr == 'k' || *endptr == 'K') {
 638                         tmp_min *= 1000.0;
 639                         endptr++;
 640                 } else if (*endptr == 'm' || *endptr == 'M') {
 641                         tmp_min *= 1000000.0;
 642                         endptr++;
 643                 }
 644                 if (*endptr == '-') {
 645                         tmp_max = strtod(endptr + 1, &endptr);
 646                         if (*endptr == 'k' || *endptr == 'K') {
 647                                 tmp_max *= 1000.0;
 648                                 endptr++;
 649                         } else if (*endptr == 'm' || *endptr == 'M') {
 650                                 tmp_max *= 1000000.0;
 651                                 endptr++;
 652                         }
 653                         if (*endptr != ',' && *endptr)
 654                                 goto out_err;
 655                 } else if (*endptr == ',' || !*endptr) {
 656                         tmp_max = tmp_min;
 657                 } else
 658                         goto out_err;
 659                 r[i].min = tmp_min;
 660                 r[i].max = tmp_max;
 661                 if (r[i].min < 0 || r[i].max < 0)
 662                         goto out_err;
 663                 s = endptr + 1;
 664         }
 665         r[i].min = r[i].max = -1;
 666         return r;
 667 out_err:
 668         free(r);
 669         return NULL;
 670 }
 671
 672 /* Borrowed from vo_fbdev.c END */
 673 #endif