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_gl3;
  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_GL
 121         &video_out_gl3,
 122 #ifndef CONFIG_GL_COCOA
 123         &video_out_gl,
 124 #endif
 125 #endif
 126 #ifdef CONFIG_X11
 127         &video_out_x11,
 128 #endif
 129 #ifdef CONFIG_SDL
 130         &video_out_sdl,
 131 #endif
 132 #ifdef CONFIG_CACA
 133         &video_out_caca,
 134 #endif
 135 #ifdef CONFIG_V4L2_DECODER
 136         &video_out_v4l2,
 137 #endif
 138         &video_out_null,
 139         // should not be auto-selected
 140 #ifdef CONFIG_DIRECTFB
 141         // vo directfb can call exit() if initialization fails
 142         &video_out_directfb,
 143 #endif
 144 #ifdef CONFIG_YUV4MPEG
 145         &video_out_yuv4mpeg,
 146 #endif
 147         &video_out_png,
 148 #ifdef CONFIG_JPEG
 149         &video_out_jpeg,
 150 #endif
 151 #ifdef CONFIG_GIF
 152         &video_out_gif89a,
 153 #endif
 154 #ifdef CONFIG_TGA
 155         &video_out_tga,
 156 #endif
 157 #ifdef CONFIG_PNM
 158         &video_out_pnm,
 159 #endif
 160 #ifdef CONFIG_MD5SUM
 161         &video_out_md5sum,
 162 #endif
 163 #ifdef CONFIG_SHAREDBUFFER
 164         &video_out_sharedbuffer,
 165 #endif
 166 #ifdef CONFIG_X11
 167 #ifdef CONFIG_GL
 168         &video_out_gl_nosw,
 169 #endif
 170 #endif
 171         NULL
 172 };
 173
 174
 175 static int vo_preinit(struct vo *vo, char *arg)
 176 {
 177     if (vo->driver->privsize)
 178         vo->priv = talloc_zero_size(vo, vo->driver->privsize);
 179     if (vo->driver->options) {
 180         struct m_config *cfg = m_config_simple(vo->driver->options);
 181         m_config_initialize(cfg, vo->priv);
 182         char n[50];
 183         int l = snprintf(n, sizeof(n), "vo/%s", vo->driver->info->short_name);
 184         assert(l < sizeof(n));
 185         int r = m_config_parse_suboptions(cfg, vo->priv, n, arg);
 186         talloc_free(cfg);
 187         if (r < 0)
 188             return r;
 189     }
 190     return vo->driver->preinit(vo, arg);
 191 }
 192
 193 int vo_control(struct vo *vo, uint32_t request, void *data)
 194 {
 195     return vo->driver->control(vo, request, data);
 196 }
 197
 198 // Return -1 if driver appears not to support a draw_image interface,
 199 // 0 otherwise (whether the driver actually drew something or not).
 200 int vo_draw_image(struct vo *vo, struct mp_image *mpi, double pts)
 201 {
 202     if (!vo->config_ok)
 203         return 0;
 204     if (vo->driver->buffer_frames) {
 205         vo->driver->draw_image(vo, mpi, pts);
 206         return 0;
 207     }
 208     vo->frame_loaded = true;
 209     vo->next_pts = pts;
 210     // Guaranteed to support at least DRAW_IMAGE later
 211     if (vo->driver->is_new) {
 212         vo->waiting_mpi = mpi;
 213         return 0;
 214     }
 215     if (vo_control(vo, VOCTRL_DRAW_IMAGE, mpi) == VO_NOTIMPL)
 216         return -1;
 217     return 0;
 218 }
 219
 220 int vo_redraw_frame(struct vo *vo)
 221 {
 222     if (!vo->config_ok || !vo->hasframe)
 223         return -1;
 224     if (vo_control(vo, VOCTRL_REDRAW_FRAME, NULL) == true) {
 225         vo->redrawing = true;
 226         return 0;
 227     }
 228     return -1;
 229 }
 230
 231 int vo_get_buffered_frame(struct vo *vo, bool eof)
 232 {
 233     if (!vo->config_ok)
 234         return -1;
 235     if (vo->frame_loaded)
 236         return 0;
 237     if (!vo->driver->buffer_frames)
 238         return -1;
 239     vo->driver->get_buffered_frame(vo, eof);
 240     return vo->frame_loaded ? 0 : -1;
 241 }
 242
 243 void vo_skip_frame(struct vo *vo)
 244 {
 245     vo_control(vo, VOCTRL_SKIPFRAME, NULL);
 246     vo->frame_loaded = false;
 247 }
 248
 249 int vo_draw_frame(struct vo *vo, uint8_t *src[])
 250 {
 251     assert(!vo->driver->is_new);
 252     if (!vo->config_ok)
 253         return 0;
 254     return old_vo_draw_frame(vo, src);
 255 }
 256
 257 int vo_draw_slice(struct vo *vo, uint8_t *src[], int stride[], int w, int h, int x, int y)
 258 {
 259     return vo->driver->draw_slice(vo, src, stride, w, h, x, y);
 260 }
 261
 262 void vo_new_frame_imminent(struct vo *vo)
 263 {
 264     if (!vo->driver->is_new)
 265         return;
 266     if (vo->driver->buffer_frames)
 267         vo_control(vo, VOCTRL_NEWFRAME, NULL);
 268     else {
 269         vo_control(vo, VOCTRL_DRAW_IMAGE, vo->waiting_mpi);
 270         vo->waiting_mpi = NULL;
 271     }
 272 }
 273
 274 void vo_draw_osd(struct vo *vo, struct osd_state *osd)
 275 {
 276     if (!vo->config_ok)
 277         return;
 278     vo->driver->draw_osd(vo, osd);
 279 }
 280
 281 void vo_flip_page(struct vo *vo, unsigned int pts_us, int duration)
 282 {
 283     if (!vo->config_ok)
 284         return;
 285     if (!vo->redrawing) {
 286         vo->frame_loaded = false;
 287         vo->next_pts = MP_NOPTS_VALUE;
 288     }
 289     vo->want_redraw = false;
 290     vo->redrawing = false;
 291     if (vo->driver->flip_page_timed)
 292         vo->driver->flip_page_timed(vo, pts_us, duration);
 293     else
 294         vo->driver->flip_page(vo);
 295     vo->hasframe = true;
 296 }
 297
 298 void vo_check_events(struct vo *vo)
 299 {
 300     if (!vo->config_ok) {
 301         if (vo->registered_fd != -1)
 302             mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
 303         vo->registered_fd = -1;
 304         return;
 305     }
 306     vo->driver->check_events(vo);
 307 }
 308
 309 void vo_seek_reset(struct vo *vo)
 310 {
 311     vo_control(vo, VOCTRL_RESET, NULL);
 312     vo->frame_loaded = false;
 313     vo->hasframe = false;
 314 }
 315
 316 void vo_destroy(struct vo *vo)
 317 {
 318     if (vo->registered_fd != -1)
 319         mp_input_rm_key_fd(vo->input_ctx, vo->registered_fd);
 320     vo->driver->uninit(vo);
 321     talloc_free(vo);
 322 }
 323
 324 void list_video_out(void)
 325 {
 326     int i = 0;
 327     mp_tmsg(MSGT_CPLAYER, MSGL_INFO, "Available video output drivers:\n");
 328     mp_msg(MSGT_IDENTIFY, MSGL_INFO, "ID_VIDEO_OUTPUTS\n");
 329     while (video_out_drivers[i]) {
 330         const vo_info_t *info = video_out_drivers[i++]->info;
 331         mp_msg(MSGT_GLOBAL, MSGL_INFO,"\t%s\t%s\n", info->short_name, info->name);
 332     }
 333     mp_msg(MSGT_GLOBAL, MSGL_INFO,"\n");
 334 }
 335
 336 struct vo *init_best_video_out(struct MPOpts *opts, struct mp_fifo *key_fifo,
 337                                struct input_ctx *input_ctx)
 338 {
 339     char **vo_list = opts->video_driver_list;
 340     int i;
 341     struct vo *vo = talloc_ptrtype(NULL, vo);
 342     struct vo initial_values = {
 343         .opts = opts,
 344         .key_fifo = key_fifo,
 345         .input_ctx = input_ctx,
 346         .event_fd = -1,
 347         .registered_fd = -1,
 348     };
 349     // first try the preferred drivers, with their optional subdevice param:
 350     if (vo_list && vo_list[0])
 351         while (vo_list[0][0]) {
 352             char *name = strdup(vo_list[0]);
 353             char *vo_subdevice = strchr(name,':');
 354             if (!strcmp(name, "pgm"))
 355                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The pgm video output driver has been replaced by -vo pnm:pgmyuv.\n");
 356             if (!strcmp(name, "md5"))
 357                 mp_tmsg(MSGT_CPLAYER, MSGL_ERR, "The md5 video output driver has been replaced by -vo md5sum.\n");
 358             if (vo_subdevice) {
 359                 vo_subdevice[0] = 0;
 360                 ++vo_subdevice;
 361             }
 362             for (i = 0; video_out_drivers[i]; i++) {
 363                 const struct vo_driver *video_driver = video_out_drivers[i];
 364                 const vo_info_t *info = video_driver->info;
 365                 if (!strcmp(info->short_name, name)) {
 366                     // name matches, try it
 367                     *vo = initial_values;
 368                     vo->driver = video_driver;
 369                     if (!vo_preinit(vo, vo_subdevice)) {
 370                         free(name);
 371                         return vo; // success!
 372                     }
 373                     talloc_free_children(vo);
 374                 }
 375             }
 376             // continue...
 377             free(name);
 378             ++vo_list;
 379             if (!(vo_list[0])) {
 380                 talloc_free(vo);
 381                 return NULL; // do NOT fallback to others
 382             }
 383         }
 384     // now try the rest...
 385     for (i = 0; video_out_drivers[i]; i++) {
 386         const struct vo_driver *video_driver = video_out_drivers[i];
 387         *vo = initial_values;
 388         vo->driver = video_driver;
 389         if (!vo_preinit(vo, NULL))
 390             return vo; // success!
 391         talloc_free_children(vo);
 392     }
 393     talloc_free(vo);
 394     return NULL;
 395 }
 396
 397 static int event_fd_callback(void *ctx, int fd)
 398 {
 399     struct vo *vo = ctx;
 400     vo_check_events(vo);
 401     return MP_INPUT_NOTHING;
 402 }
 403
 404 int vo_config(struct vo *vo, uint32_t width, uint32_t height,
 405                      uint32_t d_width, uint32_t d_height, uint32_t flags,
 406                      uint32_t format)
 407 {
 408     struct MPOpts *opts = vo->opts;
 409     panscan_init(vo);
 410     aspect_save_orig(vo, width, height);
 411     aspect_save_prescale(vo, d_width, d_height);
 412
 413     if (vo_control(vo, VOCTRL_UPDATE_SCREENINFO, NULL) == VO_TRUE) {
 414         aspect(vo, &d_width, &d_height, A_NOZOOM);
 415         vo->dx = (int)(opts->vo_screenwidth - d_width) / 2;
 416         vo->dy = (int)(opts->vo_screenheight - d_height) / 2;
 417         geometry(&vo->dx, &vo->dy, &d_width, &d_height,
 418                  opts->vo_screenwidth, opts->vo_screenheight);
 419         geometry_xy_changed |= xinerama_screen >= 0;
 420         vo->dx += xinerama_x;
 421         vo->dy += xinerama_y;
 422         vo->dwidth = d_width;
 423         vo->dheight = d_height;
 424     }
 425
 426     int ret = vo->driver->config(vo, width, height, d_width, d_height, flags,
 427                                  format);
 428     vo->config_ok = (ret == 0);
 429     vo->config_count += vo->config_ok;
 430     if (vo->registered_fd == -1 && vo->event_fd != -1 && vo->config_ok) {
 431         mp_input_add_key_fd(vo->input_ctx, vo->event_fd, 1, event_fd_callback,
 432                             NULL, vo);
 433         vo->registered_fd = vo->event_fd;
 434     }
 435     vo->frame_loaded = false;
 436     vo->waiting_mpi = NULL;
 437     vo->redrawing = false;
 438     vo->hasframe = false;
 439     return ret;
 440 }
 441
 442 /**
 443  * \brief lookup an integer in a table, table must have 0 as the last key
 444  * \param key key to search for
 445  * \result translation corresponding to key or "to" value of last mapping
 446  *         if not found.
 447  */
 448 int lookup_keymap_table(const struct mp_keymap *map, int key) {
 449   while (map->from && map->from != key) map++;
 450   return map->to;
 451 }
 452
 453 /**
 454  * \brief helper function for the kind of panscan-scaling that needs a source
 455  *        and destination rectangle like Direct3D and VDPAU
 456  */
 457 static void src_dst_split_scaling(int src_size, int dst_size, int scaled_src_size,
 458                                   int *src_start, int *src_end, int *dst_start, int *dst_end) {
 459   if (scaled_src_size > dst_size) {
 460     int border = src_size * (scaled_src_size - dst_size) / scaled_src_size;
 461     // round to a multiple of 2, this is at least needed for vo_direct3d and ATI cards
 462     border = (border / 2 + 1) & ~1;
 463     *src_start = border;
 464     *src_end   = src_size - border;
 465     *dst_start = 0;
 466     *dst_end   = dst_size;
 467   } else {
 468     *src_start = 0;
 469     *src_end   = src_size;
 470     *dst_start = (dst_size - scaled_src_size) / 2;
 471     *dst_end   = *dst_start + scaled_src_size;
 472   }
 473 }
 474
 475 /**
 476  * Calculate the appropriate source and destination rectangle to
 477  * get a correctly scaled picture, including pan-scan.
 478  * Can be extended to take future cropping support into account.
 479  *
 480  * \param crop specifies the cropping border size in the left, right, top and bottom members, may be NULL
 481  * \param borders the border values as e.g. EOSD (ASS) and properly placed DVD highlight support requires,
 482  *                may be NULL and only left and top are currently valid.
 483  */
 484 void calc_src_dst_rects(struct vo *vo, int src_width, int src_height,
 485                         struct vo_rect *src, struct vo_rect *dst,
 486                         struct vo_rect *borders, const struct vo_rect *crop)
 487 {
 488   static const struct vo_rect no_crop = {0, 0, 0, 0, 0, 0};
 489   int scaled_width  = 0;
 490   int scaled_height = 0;
 491   if (!crop) crop = &no_crop;
 492   src_width  -= crop->left + crop->right;
 493   src_height -= crop->top  + crop->bottom;
 494   if (src_width  < 2) src_width  = 2;
 495   if (src_height < 2) src_height = 2;
 496   dst->left = 0; dst->right  = vo->dwidth;
 497   dst->top  = 0; dst->bottom = vo->dheight;
 498   src->left = 0; src->right  = src_width;
 499   src->top  = 0; src->bottom = src_height;
 500   if (borders) {
 501     borders->left = 0; borders->top = 0;
 502   }
 503   if (aspect_scaling()) {
 504     aspect(vo, &scaled_width, &scaled_height, A_WINZOOM);
 505     panscan_calc_windowed(vo);
 506     scaled_width  += vo->panscan_x;
 507     scaled_height += vo->panscan_y;
 508     if (borders) {
 509       borders->left = (vo->dwidth  - scaled_width ) / 2;
 510       borders->top  = (vo->dheight - scaled_height) / 2;
 511     }
 512     src_dst_split_scaling(src_width, vo->dwidth, scaled_width,
 513                           &src->left, &src->right, &dst->left, &dst->right);
 514     src_dst_split_scaling(src_height, vo->dheight, scaled_height,
 515                           &src->top, &src->bottom, &dst->top, &dst->bottom);
 516   }
 517   src->left += crop->left; src->right  += crop->left;
 518   src->top  += crop->top;  src->bottom += crop->top;
 519   src->width  = src->right  - src->left;
 520   src->height = src->bottom - src->top;
 521   dst->width  = dst->right  - dst->left;
 522   dst->height = dst->bottom - dst->top;
 523 }
 524
 525 // Return the window title the VO should set. Always returns a null terminated
 526 // string. The string is valid until frontend code is invoked again. Copy it if
 527 // you need to keep the string for an extended period of time.
 528 const char *vo_get_window_title(struct vo *vo)
 529 {
 530     if (vo->opts->vo_wintitle) {
 531         return vo->opts->vo_wintitle;
 532     } else {
 533         return "mplayer2";
 534     }
 535 }
 536
 537 /**
 538  * Generates a mouse movement message if those are enable and sends it
 539  * to the "main" MPlayer.
 540  *
 541  * \param posx new x position of mouse
 542  * \param posy new y position of mouse
 543  */
 544 void vo_mouse_movement(struct vo *vo, int posx, int posy)
 545 {
 546   char cmd_str[40];
 547   if (!enable_mouse_movements)
 548     return;
 549   snprintf(cmd_str, sizeof(cmd_str), "set_mouse_pos %i %i", posx, posy);
 550   mp_input_queue_cmd(vo->input_ctx, mp_input_parse_cmd(cmd_str));
 551 }