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 #include "m_config.h"
  40 #include "mp_msg.h"
  41
  42 #include "osdep/shmem.h"
  43 #ifdef CONFIG_X11
  44 #include "x11_common.h"
  45 #endif
  46
  47 int xinerama_screen = -1;
  48 int xinerama_x;
  49 int xinerama_y;
  50
  51 int vo_nomouse_input = 0;
  52 int vo_grabpointer = 1;
  53 int vo_doublebuffering = 1;
  54 int vo_vsync = 0;
  55 int vo_fs = 0;
  56 int vo_fsmode = 0;
  57 float vo_panscan = 0.0f;
  58 int vo_adapter_num=0;
  59 int vo_refresh_rate=0;
  60 int vo_keepaspect=1;
  61 int vo_rootwin=0;
  62 int vo_border=1;
  63 int64_t WinID = -1;
  64
  65 int vo_pts=0; // for hw decoding
  66 float vo_fps=0;
  67
  68 int vo_directrendering=0;
  69
  70 int vo_colorkey = 0x0000ff00; // default colorkey is green
  71                               // (0xff000000 means that colorkey has been disabled)
  72
  73
  74 //
  75 // Externally visible list of all vo drivers
  76 //
  77 extern struct vo_driver video_out_x11;
  78 extern struct vo_driver video_out_vdpau;
  79 extern struct vo_driver video_out_xv;
  80 extern struct vo_driver video_out_gl_nosw;
  81 extern struct vo_driver video_out_gl;
  82 extern struct vo_driver video_out_gl_sdl;
  83 extern struct vo_driver video_out_sdl;
  84 extern struct vo_driver video_out_null;
  85 extern struct vo_driver video_out_png;
  86 extern struct vo_driver video_out_caca;
  87 extern struct vo_driver video_out_yuv4mpeg;
  88 extern struct vo_driver video_out_direct3d;
  89 extern struct vo_driver video_out_directx;
  90 extern struct vo_driver video_out_v4l2;
  91 extern struct vo_driver video_out_jpeg;
  92 extern struct vo_driver video_out_gif89a;
  93 extern struct vo_driver video_out_directfb;
  94 extern struct vo_driver video_out_tga;
  95 extern struct vo_driver video_out_corevideo;
  96 extern struct vo_driver video_out_sharedbuffer;
  97 extern struct vo_driver video_out_pnm;
  98 extern struct vo_driver video_out_md5sum;
  99
 100 const struct vo_driver *video_out_drivers[] =
 101 {
 102 #ifdef CONFIG_DIRECTX
 103         &video_out_directx,
 104 #endif
 105 #ifdef CONFIG_DIRECT3D
 106         &video_out_direct3d,
 107 #endif
 108 #ifdef CONFIG_GL_COCOA
 109         &video_out_gl,
 110 #endif
 111 #ifdef CONFIG_COREVIDEO
 112         &video_out_corevideo,
 113 #endif
 114 #if CONFIG_VDPAU
 115         &video_out_vdpau,
 116 #endif
 117 #ifdef CONFIG_XV
 118         &video_out_xv,
 119 #endif
 120 #ifdef CONFIG_X11
 121 #ifdef CONFIG_GL
 122         &video_out_gl_nosw,
 123 #endif
 124         &video_out_x11,
 125 #endif
 126 #ifdef CONFIG_SDL
 127         &video_out_sdl,
 128 #endif
 129 #if (defined CONFIG_GL && !defined CONFIG_GL_COCOA)
 130         &video_out_gl,
 131 #endif
 132 #ifdef CONFIG_GL_SDL
 133         &video_out_gl_sdl,
 134 #endif
 135 #ifdef CONFIG_CACA
 136         &video_out_caca,
 137 #endif
 138 #ifdef CONFIG_V4L2_DECODER
 139         &video_out_v4l2,
 140 #endif
 141         &video_out_null,
 142         // should not be auto-selected
 143 #ifdef CONFIG_DIRECTFB
 144         // vo directfb can call exit() if initialization fails
 145         &video_out_directfb,
 146 #endif
 147 #ifdef CONFIG_YUV4MPEG
 148         &video_out_yuv4mpeg,
 149 #endif
 150         &video_out_png,
 151 #ifdef CONFIG_JPEG
 152         &video_out_jpeg,
 153 #endif
 154 #ifdef CONFIG_GIF
 155         &video_out_gif89a,
 156 #endif
 157 #ifdef CONFIG_TGA
 158         &video_out_tga,
 159 #endif
 160 #ifdef CONFIG_PNM
 161         &video_out_pnm,
 162 #endif
 163 #ifdef CONFIG_MD5SUM
 164         &video_out_md5sum,
 165 #endif
 166 #ifdef CONFIG_SHAREDBUFFER
 167         &video_out_sharedbuffer,
 168 #endif
 169         NULL
 170 };
 171
 172
 173 static int vo_preinit(struct vo *vo, char *arg)
 174 {
 175     if (vo->driver->privsize)
 176         vo->priv = talloc_zero_size(vo, vo->driver->privsize);
 177     if (vo->driver->options) {
 178         struct m_config *cfg = m_config_simple(vo->driver->options);
 179         m_config_initialize(cfg, vo->priv);
 180         char n[50];
 181         int l = snprintf(n, sizeof(n), "vo/%s", vo->driver->info->short_name);
 182         assert(l < sizeof(n));
 183         int r = m_config_parse_suboptions(cfg, vo->priv, n, arg);
 184         talloc_free(cfg);
 185         if (r < 0)
 186             return r;
 187     }
 188     return vo->driver->preinit(vo, arg);
 189 }
 190
 191 int vo_control(struct vo *vo, uint32_t request, void *data)
 192 {
 193     return vo->driver->control(vo, request, data);
 194 }
 195
 196 // Return -1 if driver appears not to support a draw_image interface,
 197 // 0 otherwise (whether the driver actually drew something or not).
 198 int vo_draw_image(struct vo *vo, struct mp_image *mpi, double pts)
 199 {
 200     if (!vo->config_ok)
 201         return 0;
 202     if (vo->driver->buffer_frames) {
 203         vo->driver->draw_image(vo, mpi, pts);
 204         return 0;
 205     }
 206     vo->frame_loaded = true;
 207     vo->next_pts = pts;
 208     // Guaranteed to support at least DRAW_IMAGE later
 209     if (vo->driver->is_new) {
 210         vo->waiting_mpi = mpi;
 211         return 0;
 212     }
 213     if (vo_control(vo, VOCTRL_DRAW_IMAGE, mpi) == VO_NOTIMPL)
 214         return -1;
 215     return 0;
 216 }
 217
 218 int vo_redraw_frame(struct vo *vo)
 219 {
 220     if (!vo->config_ok || !vo->hasframe)
 221         return -1;
 222     if (vo_control(vo, VOCTRL_REDRAW_FRAME, NULL) == true) {
 223         vo->redrawing = true;
 224         return 0;
 225     }
 226     return -1;
 227 }
 228
 229 int vo_get_buffered_frame(struct vo *vo, bool eof)
 230 {
 231     if (!vo->config_ok)
 232         return -1;
 233     if (vo->frame_loaded)
 234         return 0;
 235     if (!vo->driver->buffer_frames)
 236         return -1;
 237     vo->driver->get_buffered_frame(vo, eof);
 238     return vo->frame_loaded ? 0 : -1;
 239 }
 240
 241 void vo_skip_frame(struct vo *vo)
 242 {
 243     vo_control(vo, VOCTRL_SKIPFRAME, NULL);
 244     vo->frame_loaded = false;
 245 }
 246
 247 int vo_draw_frame(struct vo *vo, uint8_t *src[])
 248 {
 249     assert(!vo->driver->is_new);
 250     if (!vo->config_ok)
 251         return 0;
 252     return old_vo_draw_frame(vo, src);
 253 }
 254
 255 int vo_draw_slice(struct vo *vo, uint8_t *src[], int stride[], int w, int h, int x, int y)
 256 {
 257     return vo->driver->draw_slice(vo, src, stride, w, h, x, y);
 258 }
 259
 260 void vo_new_frame_imminent(struct vo *vo)
 261 {
 262     if (!vo->driver->is_new)
 263         return;
 264     if (vo->driver->buffer_frames)
 265         vo_control(vo, VOCTRL_NEWFRAME, NULL);
 266     else {
 267         vo_control(vo, VOCTRL_DRAW_IMAGE, vo->waiting_mpi);
 268         vo->waiting_mpi = NULL;
 269     }
 270 }
 271
 272 void vo_draw_osd(struct vo *vo, struct osd_state *osd)
 273 {
 274     if (!vo->config_ok)
 275         return;
 276     vo->driver->draw_osd(vo, osd);
 277 }
 278
 279 void vo_flip_page(struct vo *vo, unsigned int pts_us, int duration)
 280 {
 281     if (!vo->config_ok)
 282         return;
 283     if (!vo->redrawing) {
 284         vo->frame_loaded = false;
 285         vo->next_pts = MP_NOPTS_VALUE;
 286     }
 287     vo->want_redraw = false;
 288     vo->redrawing = false;
 289     if (vo->driver->flip_page_timed)
 290         vo->driver->flip_page_timed(vo, pts_us, duration);
 291     else
 292         vo->driver->flip_page(vo);
 293     vo->hasframe = true;
 294 }
 295
 296 void vo_check_events(struct vo *vo)
 297 {
 298     if (!vo->config_ok) {
 299         if (vo->registered_fd != -1)
 300             mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
 301         vo->registered_fd = -1;
 302         return;
 303     }
 304     vo->driver->check_events(vo);
 305 }
 306
 307 void vo_seek_reset(struct vo *vo)
 308 {
 309     vo_control(vo, VOCTRL_RESET, NULL);
 310     vo->frame_loaded = false;
 311     vo->hasframe = false;
 312 }
 313
 314 void vo_destroy(struct vo *vo)
 315 {
 316     if (vo->registered_fd != -1)
 317         mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
 318     vo->driver->uninit(vo);
 319     talloc_free(vo);
 320 }
 321
 322 void list_video_out(void)
 323 {
 324     int i = 0;
 325     mp_tmsg(MSGT_CPLAYER, MSGL_INFO, "Available video output drivers:\n");
 326     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_OUTPUTS\n");
 327     while (video_out_drivers[i]) {
 328         const vo_info_t *info = video_out_drivers[i++]->info;
 329         mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n", info->short_name, info->name);
 330     }
 331     mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
 332 }
 333
 334 struct vo *init_best_video_out(struct MPOpts *opts, struct mp_fifo *key_fifo,
 335                                struct input_ctx *input_ctx)
 336 {
 337     char **vo_list = opts->video_driver_list;
 338     int i;
 339     struct vo *vo = talloc_ptrtype(NULL, vo);
 340     struct vo initial_values = {
 341         .opts = opts,
 342         .key_fifo = key_fifo,
 343         .input_ctx = input_ctx,
 344         .event_fd = -1,
 345         .registered_fd = -1,
 346     };
 347     // first try the preferred drivers, with their optional subdevice param:
 348     if (vo_list && vo_list[0])
 349         while (vo_list[0][0]) {
 350             char *name = strdup(vo_list[0]);
 351             char *vo_subdevice = strchr(name,':');
 352             if (!strcmp(name, "pgm"))
 353                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The pgm video output driver has been replaced by -vo pnm:pgmyuv.\n");
 354             if (!strcmp(name, "md5"))
 355                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The md5 video output driver has been replaced by -vo md5sum.\n");
 356             if (vo_subdevice) {
 357                 vo_subdevice[0] = 0;
 358                 ++vo_subdevice;
 359             }
 360             for (i = 0; video_out_drivers[i]; i++) {
 361                 const struct vo_driver *video_driver = video_out_drivers[i];
 362                 const vo_info_t *info = video_driver->info;
 363                 if (!strcmp(info->short_name, name)) {
 364                     // name matches, try it
 365                     *vo = initial_values;
 366                     vo->driver = video_driver;
 367                     if (!vo_preinit(vo, vo_subdevice)) {
 368                         free(name);
 369                         return vo; // success!
 370                     }
 371                     talloc_free_children(vo);
 372                 }
 373             }
 374             // continue...
 375             free(name);
 376             ++vo_list;
 377             if (!(vo_list[0])) {
 378                 talloc_free(vo);
 379                 return NULL; // do NOT fallback to others
 380             }
 381         }
 382     // now try the rest...
 383     for (i = 0; video_out_drivers[i]; i++) {
 384         const struct vo_driver *video_driver = video_out_drivers[i];
 385         *vo = initial_values;
 386         vo->driver = video_driver;
 387         if (!vo_preinit(vo, NULL))
 388             return vo; // success!
 389         talloc_free_children(vo);
 390     }
 391     talloc_free(vo);
 392     return NULL;
 393 }
 394
 395 static int event_fd_callback(void *ctx, int fd)
 396 {
 397     struct vo *vo = ctx;
 398     vo_check_events(vo);
 399     return MP_INPUT_NOTHING;
 400 }
 401
 402 int vo_config(struct vo *vo, uint32_t width, uint32_t height,
 403                      uint32_t d_width, uint32_t d_height, uint32_t flags,
 404                      uint32_t format)
 405 {
 406     struct MPOpts *opts = vo->opts;
 407     panscan_init(vo);
 408     aspect_save_orig(vo, width, height);
 409     aspect_save_prescale(vo, d_width, d_height);
 410
 411     if (vo_control(vo, VOCTRL_UPDATE_SCREENINFO, NULL) == VO_TRUE) {
 412         aspect(vo, &d_width, &d_height, A_NOZOOM);
 413         vo->dx = (int)(opts->vo_screenwidth - d_width) / 2;
 414         vo->dy = (int)(opts->vo_screenheight - d_height) / 2;
 415         geometry(&vo->dx, &vo->dy, &d_width, &d_height,
 416                  opts->vo_screenwidth, opts->vo_screenheight);
 417         geometry_xy_changed |= xinerama_screen >= 0;
 418         vo->dx += xinerama_x;
 419         vo->dy += xinerama_y;
 420         vo->dwidth = d_width;
 421         vo->dheight = d_height;
 422     }
 423
 424     int ret = vo->driver->config(vo, width, height, d_width, d_height, flags,
 425                                  format);
 426     vo->config_ok = (ret == 0);
 427     vo->config_count += vo->config_ok;
 428     if (vo->registered_fd == -1 && vo->event_fd != -1 && vo->config_ok) {
 429         mp_input_add_key_fd(vo->input_ctx, vo->event_fd, 1, event_fd_callback,
 430                             NULL, vo);
 431         vo->registered_fd = vo->event_fd;
 432     }
 433     vo->frame_loaded = false;
 434     vo->waiting_mpi = NULL;
 435     vo->redrawing = false;
 436     vo->hasframe = false;
 437     return ret;
 438 }
 439
 440 /**
 441  * \brief lookup an integer in a table, table must have 0 as the last key
 442  * \param key key to search for
 443  * \result translation corresponding to key or "to" value of last mapping
 444  *         if not found.
 445  */
 446 int lookup_keymap_table(const struct mp_keymap *map, int key) {
 447   while (map->from && map->from != key) map++;
 448   return map->to;
 449 }
 450
 451 /**
 452  * \brief helper function for the kind of panscan-scaling that needs a source
 453  *        and destination rectangle like Direct3D and VDPAU
 454  */
 455 static void src_dst_split_scaling(int src_size, int dst_size, int scaled_src_size,
 456                                   int *src_start, int *src_end, int *dst_start, int *dst_end) {
 457   if (scaled_src_size > dst_size) {
 458     int border = src_size * (scaled_src_size - dst_size) / scaled_src_size;
 459     // round to a multiple of 2, this is at least needed for vo_direct3d and ATI cards
 460     border = (border / 2 + 1) & ~1;
 461     *src_start = border;
 462     *src_end   = src_size - border;
 463     *dst_start = 0;
 464     *dst_end   = dst_size;
 465   } else {
 466     *src_start = 0;
 467     *src_end   = src_size;
 468     *dst_start = (dst_size - scaled_src_size) / 2;
 469     *dst_end   = *dst_start + scaled_src_size;
 470   }
 471 }
 472
 473 /**
 474  * Calculate the appropriate source and destination rectangle to
 475  * get a correctly scaled picture, including pan-scan.
 476  * Can be extended to take future cropping support into account.
 477  *
 478  * \param crop specifies the cropping border size in the left, right, top and bottom members, may be NULL
 479  * \param borders the border values as e.g. EOSD (ASS) and properly placed DVD highlight support requires,
 480  *                may be NULL and only left and top are currently valid.
 481  */
 482 void calc_src_dst_rects(struct vo *vo, int src_width, int src_height,
 483                         struct vo_rect *src, struct vo_rect *dst,
 484                         struct vo_rect *borders, const struct vo_rect *crop)
 485 {
 486   static const struct vo_rect no_crop = {0, 0, 0, 0, 0, 0};
 487   int scaled_width  = 0;
 488   int scaled_height = 0;
 489   if (!crop) crop = &no_crop;
 490   src_width  -= crop->left + crop->right;
 491   src_height -= crop->top  + crop->bottom;
 492   if (src_width  < 2) src_width  = 2;
 493   if (src_height < 2) src_height = 2;
 494   dst->left = 0; dst->right  = vo->dwidth;
 495   dst->top  = 0; dst->bottom = vo->dheight;
 496   src->left = 0; src->right  = src_width;
 497   src->top  = 0; src->bottom = src_height;
 498   if (borders) {
 499     borders->left = 0; borders->top = 0;
 500   }
 501   if (aspect_scaling()) {
 502     aspect(vo, &scaled_width, &scaled_height, A_WINZOOM);
 503     panscan_calc_windowed(vo);
 504     scaled_width  += vo->panscan_x;
 505     scaled_height += vo->panscan_y;
 506     if (borders) {
 507       borders->left = (vo->dwidth  - scaled_width ) / 2;
 508       borders->top  = (vo->dheight - scaled_height) / 2;
 509     }
 510     src_dst_split_scaling(src_width, vo->dwidth, scaled_width,
 511                           &src->left, &src->right, &dst->left, &dst->right);
 512     src_dst_split_scaling(src_height, vo->dheight, scaled_height,
 513                           &src->top, &src->bottom, &dst->top, &dst->bottom);
 514   }
 515   src->left += crop->left; src->right  += crop->left;
 516   src->top  += crop->top;  src->bottom += crop->top;
 517   src->width  = src->right  - src->left;
 518   src->height = src->bottom - src->top;
 519   dst->width  = dst->right  - dst->left;
 520   dst->height = dst->bottom - dst->top;
 521 }
 522
 523 // Return the window title the VO should set. Always returns a null terminated
 524 // string. The string is valid until frontend code is invoked again. Copy it if
 525 // you need to keep the string for an extended period of time.
 526 const char *vo_get_window_title(struct vo *vo)
 527 {
 528     if (vo->opts->vo_wintitle) {
 529         return vo->opts->vo_wintitle;
 530     } else {
 531         return "mplayer2";
 532     }
 533 }
 534
 535 /**
 536  * Generates a mouse movement message if those are enable and sends it
 537  * to the "main" MPlayer.
 538  *
 539  * \param posx new x position of mouse
 540  * \param posy new y position of mouse
 541  */
 542 void vo_mouse_movement(struct vo *vo, int posx, int posy)
 543 {
 544   char cmd_str[40];
 545   if (!enable_mouse_movements)
 546     return;
 547   snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i", posx, posy);
 548   mp_input_queue_cmd(vo->input_ctx, mp_input_parse_cmd(cmd_str));
 549 }
 550
 551 #if defined(CONFIG_FBDEV) || defined(CONFIG_VESA)
 552 /* Borrowed from vo_fbdev.c
 553 Monitor ranges related functions*/
 554
 555 char *monitor_hfreq_str = NULL;
 556 char *monitor_vfreq_str = NULL;
 557 char *monitor_dotclock_str = NULL;
 558
 559 float range_max(range_t *r)
 560 {
 561 float max = 0;
 562
 563         for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
 564                 if (max < r->max) max = r->max;
 565         return max;
 566 }
 567
 568
 569 int in_range(range_t *r, float f)
 570 {
 571         for (/* NOTHING */; (r->min != -1 && r->max != -1); r++)
 572                 if (f >= r->min && f <= r->max)
 573                         return 1;
 574         return 0;
 575 }
 576
 577 range_t *str2range(char *s)
 578 {
 579         float tmp_min, tmp_max;
 580         char *endptr = s;       // to start the loop
 581         range_t *r = NULL;
 582         int i;
 583
 584         if (!s)
 585                 return NULL;
 586         for (i = 0; *endptr; i++) {
 587                 if (*s == ',')
 588                         goto out_err;
 589                 if (!(r = realloc(r, sizeof(*r) * (i + 2)))) {
 590                         mp_msg(MSGT_GLOBAL, MSGL_WARN,"can't realloc 'r'\n");
 591                         return NULL;
 592                 }
 593                 tmp_min = strtod(s, &endptr);
 594                 if (*endptr == 'k' || *endptr == 'K') {
 595                         tmp_min *= 1000.0;
 596                         endptr++;
 597                 } else if (*endptr == 'm' || *endptr == 'M') {
 598                         tmp_min *= 1000000.0;
 599                         endptr++;
 600                 }
 601                 if (*endptr == '-') {
 602                         tmp_max = strtod(endptr + 1, &endptr);
 603                         if (*endptr == 'k' || *endptr == 'K') {
 604                                 tmp_max *= 1000.0;
 605                                 endptr++;
 606                         } else if (*endptr == 'm' || *endptr == 'M') {
 607                                 tmp_max *= 1000000.0;
 608                                 endptr++;
 609                         }
 610                         if (*endptr != ',' && *endptr)
 611                                 goto out_err;
 612                 } else if (*endptr == ',' || !*endptr) {
 613                         tmp_max = tmp_min;
 614                 } else
 615                         goto out_err;
 616                 r[i].min = tmp_min;
 617                 r[i].max = tmp_max;
 618                 if (r[i].min < 0 || r[i].max < 0)
 619                         goto out_err;
 620                 s = endptr + 1;
 621         }
 622         r[i].min = r[i].max = -1;
 623         return r;
 624 out_err:
 625         free(r);
 626         return NULL;
 627 }
 628
 629 /* Borrowed from vo_fbdev.c END */
 630 #endif