libvo/vo_xover.c

   1 /*
   2  * XOver a general x11 vo for MPlayer overlay drivers based on:
   3  * VIDIX-accelerated overlay in an X window
   4  *
   5  * copyright (C) Alex Beregszaszi & Zoltan Ponekker & Nick Kurshev
   6  *
   7  * WS window manager by Pontscho/Fresh!
   8  *
   9  * based on vo_gl.c and vo_vesa.c and vo_xmga.c (.so mastah! ;))
  10  *
  11  * This file is part of MPlayer.
  12  *
  13  * MPlayer is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * MPlayer is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License along
  24  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  25  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  26  */
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <math.h>
  32 #include <errno.h>
  33 #include <unistd.h>
  34
  35 #include "config.h"
  36 #include "video_out.h"
  37 #include "video_out_internal.h"
  38
  39 #include <X11/Xlib.h>
  40 #include <X11/Xutil.h>
  41 //#include <X11/keysym.h>
  42
  43 #ifdef CONFIG_XINERAMA
  44 #include <X11/extensions/Xinerama.h>
  45 #endif
  46
  47 #include "x11_common.h"
  48 #include "aspect.h"
  49 #include "mp_msg.h"
  50
  51
  52 static const vo_info_t info =
  53 {
  54     "General X11 driver for overlay capable video output drivers",
  55     "xover",
  56     "Albeu",
  57     ""
  58 };
  59
  60 LIBVO_EXTERN(xover)
  61
  62 /* X11 related variables */
  63 /* Colorkey handling */
  64 static int colorkey;
  65
  66 /* Image parameters */
  67 static uint32_t image_width;
  68 static uint32_t image_height;
  69 static uint32_t image_format;
  70
  71 /* Window parameters */
  72 static uint32_t window_x, window_y;
  73 static uint32_t window_width, window_height;
  74
  75 /* used by XGetGeometry & XTranslateCoordinates for moving/resizing window */
  76 static uint32_t drwX, drwY, drwWidth, drwHeight, drwBorderWidth,
  77     drwDepth, drwcX, drwcY, dwidth, dheight;
  78
  79 static const struct vo_old_functions *sub_vo = NULL;
  80 static const struct vo_info_s *sub_info;
  81
  82 static void set_window(int force_update)
  83 {
  84   Window mRoot;
  85   if ( WinID )
  86     {
  87       XGetGeometry(mDisplay, vo_window, &mRoot, &drwX, &drwY, &drwWidth,
  88                    &drwHeight, &drwBorderWidth, &drwDepth);
  89       drwX = drwY = 0;
  90
  91       XTranslateCoordinates(mDisplay, vo_window, mRoot, 0, 0,
  92                             &drwcX, &drwcY, &mRoot);
  93       aspect(&dwidth,&dheight,A_NOZOOM);
  94       if (!vo_fs)
  95         mp_msg(MSGT_VO, MSGL_V, "[xvidix] dcx: %d dcy: %d dx: %d dy: %d dw: %d dh: %d\n",
  96                drwcX, drwcY, drwX, drwY, drwWidth, drwHeight);
  97
  98       /* following stuff copied from vo_xmga.c */
  99     }
 100   else
 101     {
 102       aspect(&dwidth,&dheight,A_NOZOOM);
 103       drwcX=drwX=vo_dx; drwcY=drwY=vo_dy; drwWidth=vo_dwidth; drwHeight=vo_dheight;
 104     }
 105
 106 #if X11_FULLSCREEN
 107   if (vo_fs)
 108     {
 109       aspect(&dwidth,&dheight,A_ZOOM);
 110       drwX = (vo_screenwidth - ((int)dwidth > vo_screenwidth ? vo_screenwidth : dwidth)) / 2;
 111       drwcX = drwX;
 112       drwY = (vo_screenheight - ((int)dheight > vo_screenheight ? vo_screenheight : dheight)) / 2;
 113       drwcY = drwY;
 114       drwWidth = ((int)dwidth > vo_screenwidth ? vo_screenwidth : dwidth);
 115       drwHeight = ((int)dheight > vo_screenheight ? vo_screenheight : dheight);
 116       mp_msg(MSGT_VO, MSGL_V, "[xvidix-fs] dcx: %d dcy: %d dx: %d dy: %d dw: %d dh: %d\n",
 117              drwcX, drwcY, drwX, drwY, drwWidth, drwHeight);
 118     }
 119 #endif
 120
 121   vo_dwidth=drwWidth; vo_dheight=drwHeight;
 122
 123 #ifdef CONFIG_XINERAMA
 124   if (XineramaIsActive(mDisplay))
 125     {
 126       XineramaScreenInfo *screens;
 127       int num_screens;
 128       int i = 0;
 129
 130       screens = XineramaQueryScreens(mDisplay, &num_screens);
 131
 132       /* find the screen we are on */
 133       while (i<num_screens &&
 134              ((screens[i].x_org < (int)drwcX) ||
 135               (screens[i].y_org < (int)drwcY) ||
 136               (screens[i].x_org + screens[i].width >= (int)drwcX) ||
 137               (screens[i].y_org + screens[i].height >= (int)drwcY)))
 138         {
 139           i++;
 140         }
 141
 142       if(i<num_screens)
 143         {
 144           /* save the screen we are on */
 145           xinerama_screen = i;
 146         } else {
 147           /* oops.. couldnt find the screen we are on
 148            * because the upper left corner left the
 149            * visual range. assume we are still on the
 150            * same screen
 151            */
 152           i = xinerama_screen;
 153         }
 154
 155       /* set drwcX and drwcY to the right values */
 156       drwcX = drwcX - screens[i].x_org;
 157       drwcY = drwcY - screens[i].y_org;
 158       XFree(screens);
 159     }
 160 #endif
 161
 162   if ( vo_panscan > 0.0f && vo_fs )
 163     {
 164       drwcX-=vo_panscan_x >> 1;
 165       drwcY-=vo_panscan_y >> 1;
 166       drwX-=vo_panscan_x >> 1;
 167       drwY-=vo_panscan_y >> 1;
 168       drwWidth+=vo_panscan_x;
 169       drwHeight+=vo_panscan_y;
 170     }
 171
 172   /* set new values in VIDIX */
 173   if (force_update || (window_x != drwcX) || (window_y != drwcY) ||
 174       (window_width != drwWidth) || (window_height != drwHeight))
 175     {
 176       mp_win_t w;
 177       // do a backup of window coordinates
 178       w.x = window_x = drwcX;
 179       w.y = window_y = drwcY;
 180       vo_dx = drwcX;
 181       vo_dy = drwcY;
 182       w.w = window_width = drwWidth;
 183       w.h = window_height = drwHeight;
 184
 185       if(sub_vo->control(VOCTRL_XOVERLAY_SET_WIN,&w) != VO_TRUE)
 186         mp_msg(MSGT_VO, MSGL_ERR, "xvidx: set_overlay failed\n");
 187
 188       mp_msg(MSGT_VO, MSGL_V, "[xvidix] window properties: pos: %dx%d, size: %dx%d\n", vo_dx, vo_dy, window_width, window_height);
 189     }
 190
 191   /* mDrawColorKey: */
 192
 193   /* fill drawable with specified color */
 194   XSetBackground(mDisplay, vo_gc, 0L);
 195   XClearWindow( mDisplay,vo_window );
 196   XSetForeground(mDisplay, vo_gc, colorkey);
 197   XFillRectangle(mDisplay, vo_window, vo_gc, drwX, drwY, drwWidth,
 198                  (vo_fs ? drwHeight - 1 : drwHeight));
 199
 200   /* flush, update drawable */
 201   XFlush(mDisplay);
 202
 203   return;
 204 }
 205
 206 /* connect to server, create and map window,
 207  * allocate colors and (shared) memory
 208  */
 209 static int config(uint32_t width, uint32_t height, uint32_t d_width,
 210                        uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 211 {
 212   XVisualInfo vinfo;
 213   //    XSizeHints hint;
 214   XSetWindowAttributes xswa;
 215   unsigned long xswamask;
 216   XWindowAttributes attribs;
 217   int window_depth, r, g, b;
 218   mp_colorkey_t colork;
 219   char _title[255];
 220
 221   sprintf(_title,"MPlayer %s X11 Overlay", sub_info->name);
 222   title = _title;
 223
 224   panscan_init();
 225
 226   image_height = height;
 227   image_width = width;
 228   image_format = format;
 229
 230   aspect_save_orig(width, height);
 231   aspect_save_prescale(d_width, d_height);
 232   update_xinerama_info();
 233
 234   window_width = d_width;
 235   window_height = d_height;
 236
 237   r = (vo_colorkey & 0x00ff0000) >> 16;
 238   g = (vo_colorkey & 0x0000ff00) >> 8;
 239   b = vo_colorkey & 0x000000ff;
 240   switch(vo_depthonscreen)
 241     {
 242     case 32:
 243       colorkey = vo_colorkey;
 244       break;
 245     case 24:
 246       colorkey = vo_colorkey & 0x00ffffff;
 247       break;
 248     case 16:
 249       colorkey = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
 250       break;
 251     case 15:
 252       colorkey = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3);
 253       break;
 254     default:
 255       mp_msg(MSGT_VO, MSGL_ERR, "Sorry, this (%d) color depth is not supported\n",
 256              vo_depthonscreen);
 257     }
 258   mp_msg(MSGT_VO, MSGL_V, "Using colorkey: %x\n", colorkey);
 259
 260   aspect(&d_width, &d_height, A_NOZOOM);
 261
 262   vo_dx=( vo_screenwidth - d_width ) / 2; vo_dy=( vo_screenheight - d_height ) / 2;
 263   vo_dx += xinerama_x;
 264   vo_dy += xinerama_y;
 265   vo_dwidth=d_width; vo_dheight=d_height;
 266
 267 #ifdef X11_FULLSCREEN
 268       if ( ( flags&VOFLAG_FULLSCREEN )||(flags & VOFLAG_SWSCALE) ) aspect(&d_width, &d_height, A_ZOOM);
 269 #endif
 270       dwidth = d_width;
 271       dheight = d_height;
 272       /* Make the window */
 273       XGetWindowAttributes(mDisplay, DefaultRootWindow(mDisplay), &attribs);
 274
 275       /* from vo_x11 */
 276       window_depth = attribs.depth;
 277       if ((window_depth != 15) && (window_depth != 16) && (window_depth != 24)
 278           && (window_depth != 32))
 279         window_depth = 24;
 280       XMatchVisualInfo(mDisplay, mScreen, window_depth, TrueColor, &vinfo);
 281
 282       xswa.background_pixel = BlackPixel(mDisplay, mScreen);
 283       xswa.border_pixel     = 0;
 284       xswa.colormap         = XCreateColormap(mDisplay, RootWindow(mDisplay, mScreen),
 285                                               vinfo.visual, AllocNone);
 286       xswamask = CWBackPixel | CWBorderPixel | CWColormap;
 287
 288             vo_x11_create_vo_window(&vinfo, vo_dx, vo_dy,
 289                   window_width, window_height, flags,
 290                   xswa.colormap, "xvidix", title);
 291             XChangeWindowAttributes(mDisplay, vo_window, xswamask, &xswa);
 292
 293   if ( ( !WinID )&&( flags&VOFLAG_FULLSCREEN ) ) { vo_dx=0; vo_dy=0; vo_dwidth=vo_screenwidth; vo_dheight=vo_screenheight; vo_fs=1; }
 294
 295   if(sub_vo->config(image_width,image_height,vo_dwidth,vo_dheight,
 296                     flags | VOFLAG_XOVERLAY_SUB_VO,NULL,format)) {
 297     mp_msg(MSGT_VO, MSGL_ERR, "xover: sub vo config failed\n");
 298     return 1;
 299   }
 300   colork.x11 = colorkey;
 301   colork.r = r;
 302   colork.g = g;
 303   colork.b = b;
 304   if(sub_vo->control(VOCTRL_XOVERLAY_SET_COLORKEY,&colork) != VO_TRUE)
 305     mp_msg(MSGT_VO, MSGL_WARN, "xover: set_colorkey failed\n");
 306
 307   set_window(1);
 308
 309   XSync(mDisplay, False);
 310
 311   panscan_calc();
 312
 313   return 0;
 314 }
 315
 316 static void check_events(void)
 317 {
 318   const int event = vo_x11_check_events(mDisplay);
 319
 320   if ((event & VO_EVENT_RESIZE) || (event & VO_EVENT_EXPOSE))
 321     set_window(0);
 322   sub_vo->check_events();
 323   return;
 324 }
 325
 326 /* draw_osd, flip_page, draw_slice, draw_frame should be
 327    overwritten with vidix functions (vosub_vidix.c) */
 328 static void draw_osd(void)
 329 {
 330   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo draw_osd!\n");
 331 }
 332
 333 static void flip_page(void)
 334 {
 335   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo flip_page!\n");
 336 }
 337
 338 static int draw_slice(uint8_t *src[], int stride[],
 339                            int w, int h, int x, int y)
 340 {
 341   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo draw_slice!\n");
 342   return 1;
 343 }
 344
 345 static int draw_frame(uint8_t *src[])
 346 {
 347   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo draw_frame!\n");
 348   return 1;
 349 }
 350
 351 static void uninit(void)
 352 {
 353   if(!vo_config_count) return;
 354   if(sub_vo) sub_vo->uninit();
 355   sub_vo = NULL;
 356   vo_x11_uninit();
 357   // Restore our callbacks
 358   video_out_xover.old_functions->draw_frame = draw_frame;
 359   video_out_xover.old_functions->draw_slice = draw_slice;
 360   video_out_xover.old_functions->flip_page = flip_page;
 361   video_out_xover.old_functions->draw_osd  = draw_osd;
 362 }
 363
 364 static int preinit(const char *arg)
 365 {
 366   int i;
 367
 368   if(!arg) {
 369     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay need a subdriver\n");
 370     return 1;
 371   }
 372
 373   const struct vo_driver *candidate;
 374   for(i = 0; (candidate = video_out_drivers[i]) != NULL; i++)
 375     if (!candidate->is_new && !strcmp(candidate->info->short_name,arg) &&
 376         strcmp(candidate->info->short_name,"xover"))
 377       break;
 378   if (!candidate) {
 379     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay: Subdriver %s not found\n", arg);
 380     return 1;
 381   }
 382
 383   const struct vo_old_functions *functions = candidate->old_functions;
 384   if (functions->control(VOCTRL_XOVERLAY_SUPPORT,NULL) != VO_TRUE) {
 385     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay: %s doesn't support XOverlay\n", arg);
 386     return 1;
 387   }
 388   // X11 init
 389   if (!vo_init()) return VO_FALSE;
 390   if(functions->preinit(NULL)) {
 391     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay: Subvo init failed\n");
 392     return 1;
 393   }
 394   sub_vo = functions;
 395   sub_info = candidate->info;
 396   // Setup the sub vo callbacks
 397   video_out_xover.old_functions->draw_frame = sub_vo->draw_frame;
 398   video_out_xover.old_functions->draw_slice = sub_vo->draw_slice;
 399   video_out_xover.old_functions->flip_page = sub_vo->flip_page;
 400   video_out_xover.old_functions->draw_osd  = sub_vo->draw_osd;
 401   return 0;
 402 }
 403
 404 static int control(uint32_t request, void *data)
 405 {
 406   if(!sub_vo) return VO_ERROR;
 407   switch (request) {
 408   case VOCTRL_GET_PANSCAN:
 409     if ( !vo_config_count || !vo_fs ) return VO_FALSE;
 410     return VO_TRUE;
 411   case VOCTRL_ONTOP:
 412     vo_x11_ontop();
 413     return VO_TRUE;
 414   case VOCTRL_FULLSCREEN:
 415     vo_x11_fullscreen();
 416   case VOCTRL_SET_PANSCAN:
 417     if ( vo_fs && ( vo_panscan != vo_panscan_amount ) )
 418       {
 419         panscan_calc();
 420         set_window(0);
 421       }
 422     return VO_TRUE;
 423   default:
 424     return sub_vo->control(request,data);
 425   }
 426   return VO_NOTIMPL;
 427 }