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 #define UNUSED(x) ((void)(x)) /* Removes warning about unused arguments */
  63
  64 /* X11 related variables */
  65 /* Colorkey handling */
  66 static int colorkey;
  67
  68 /* Image parameters */
  69 static uint32_t image_width;
  70 static uint32_t image_height;
  71 static uint32_t image_format;
  72
  73 /* Window parameters */
  74 static uint32_t window_x, window_y;
  75 static uint32_t window_width, window_height;
  76
  77 /* used by XGetGeometry & XTranslateCoordinates for moving/resizing window */
  78 static uint32_t drwX, drwY, drwWidth, drwHeight, drwBorderWidth,
  79     drwDepth, drwcX, drwcY, dwidth, dheight;
  80
  81 static const struct vo_old_functions *sub_vo = NULL;
  82 static const struct vo_info_s *sub_info;
  83
  84 static void set_window(int force_update)
  85 {
  86   Window mRoot;
  87   if ( WinID )
  88     {
  89       XGetGeometry(mDisplay, vo_window, &mRoot, &drwX, &drwY, &drwWidth,
  90                    &drwHeight, &drwBorderWidth, &drwDepth);
  91       drwX = drwY = 0;
  92
  93       XTranslateCoordinates(mDisplay, vo_window, mRoot, 0, 0,
  94                             &drwcX, &drwcY, &mRoot);
  95       aspect(&dwidth,&dheight,A_NOZOOM);
  96       if (!vo_fs)
  97         mp_msg(MSGT_VO, MSGL_V, "[xvidix] dcx: %d dcy: %d dx: %d dy: %d dw: %d dh: %d\n",
  98                drwcX, drwcY, drwX, drwY, drwWidth, drwHeight);
  99
 100       /* following stuff copied from vo_xmga.c */
 101     }
 102   else
 103     {
 104       aspect(&dwidth,&dheight,A_NOZOOM);
 105       drwcX=drwX=vo_dx; drwcY=drwY=vo_dy; drwWidth=vo_dwidth; drwHeight=vo_dheight;
 106     }
 107
 108 #if X11_FULLSCREEN
 109   if (vo_fs)
 110     {
 111       aspect(&dwidth,&dheight,A_ZOOM);
 112       drwX = (vo_screenwidth - ((int)dwidth > vo_screenwidth ? vo_screenwidth : dwidth)) / 2;
 113       drwcX = drwX;
 114       drwY = (vo_screenheight - ((int)dheight > vo_screenheight ? vo_screenheight : dheight)) / 2;
 115       drwcY = drwY;
 116       drwWidth = ((int)dwidth > vo_screenwidth ? vo_screenwidth : dwidth);
 117       drwHeight = ((int)dheight > vo_screenheight ? vo_screenheight : dheight);
 118       mp_msg(MSGT_VO, MSGL_V, "[xvidix-fs] dcx: %d dcy: %d dx: %d dy: %d dw: %d dh: %d\n",
 119              drwcX, drwcY, drwX, drwY, drwWidth, drwHeight);
 120     }
 121 #endif
 122
 123   vo_dwidth=drwWidth; vo_dheight=drwHeight;
 124
 125 #ifdef CONFIG_XINERAMA
 126   if (XineramaIsActive(mDisplay))
 127     {
 128       XineramaScreenInfo *screens;
 129       int num_screens;
 130       int i = 0;
 131
 132       screens = XineramaQueryScreens(mDisplay, &num_screens);
 133
 134       /* find the screen we are on */
 135       while (i<num_screens &&
 136              ((screens[i].x_org < (int)drwcX) ||
 137               (screens[i].y_org < (int)drwcY) ||
 138               (screens[i].x_org + screens[i].width >= (int)drwcX) ||
 139               (screens[i].y_org + screens[i].height >= (int)drwcY)))
 140         {
 141           i++;
 142         }
 143
 144       if(i<num_screens)
 145         {
 146           /* save the screen we are on */
 147           xinerama_screen = i;
 148         } else {
 149           /* oops.. couldnt find the screen we are on
 150            * because the upper left corner left the
 151            * visual range. assume we are still on the
 152            * same screen
 153            */
 154           i = xinerama_screen;
 155         }
 156
 157       /* set drwcX and drwcY to the right values */
 158       drwcX = drwcX - screens[i].x_org;
 159       drwcY = drwcY - screens[i].y_org;
 160       XFree(screens);
 161     }
 162 #endif
 163
 164   if ( vo_panscan > 0.0f && vo_fs )
 165     {
 166       drwcX-=vo_panscan_x >> 1;
 167       drwcY-=vo_panscan_y >> 1;
 168       drwX-=vo_panscan_x >> 1;
 169       drwY-=vo_panscan_y >> 1;
 170       drwWidth+=vo_panscan_x;
 171       drwHeight+=vo_panscan_y;
 172     }
 173
 174   /* set new values in VIDIX */
 175   if (force_update || (window_x != drwcX) || (window_y != drwcY) ||
 176       (window_width != drwWidth) || (window_height != drwHeight))
 177     {
 178       mp_win_t w;
 179       // do a backup of window coordinates
 180       w.x = window_x = drwcX;
 181       w.y = window_y = drwcY;
 182       vo_dx = drwcX;
 183       vo_dy = drwcY;
 184       w.w = window_width = drwWidth;
 185       w.h = window_height = drwHeight;
 186
 187       if(sub_vo->control(VOCTRL_XOVERLAY_SET_WIN,&w) != VO_TRUE)
 188         mp_msg(MSGT_VO, MSGL_ERR, "xvidx: set_overlay failed\n");
 189
 190       mp_msg(MSGT_VO, MSGL_V, "[xvidix] window properties: pos: %dx%d, size: %dx%d\n", vo_dx, vo_dy, window_width, window_height);
 191     }
 192
 193   /* mDrawColorKey: */
 194
 195   /* fill drawable with specified color */
 196   XSetBackground(mDisplay, vo_gc, 0L);
 197   XClearWindow( mDisplay,vo_window );
 198   XSetForeground(mDisplay, vo_gc, colorkey);
 199   XFillRectangle(mDisplay, vo_window, vo_gc, drwX, drwY, drwWidth,
 200                  (vo_fs ? drwHeight - 1 : drwHeight));
 201
 202   /* flush, update drawable */
 203   XFlush(mDisplay);
 204
 205   return;
 206 }
 207
 208 /* connect to server, create and map window,
 209  * allocate colors and (shared) memory
 210  */
 211 static int config(uint32_t width, uint32_t height, uint32_t d_width,
 212                        uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 213 {
 214   XVisualInfo vinfo;
 215   //    XSizeHints hint;
 216   XSetWindowAttributes xswa;
 217   unsigned long xswamask;
 218   XWindowAttributes attribs;
 219   int window_depth, r, g, b;
 220   mp_colorkey_t colork;
 221   char _title[255];
 222
 223   sprintf(_title,"MPlayer %s X11 Overlay", sub_info->name);
 224   title = _title;
 225
 226   panscan_init();
 227
 228   image_height = height;
 229   image_width = width;
 230   image_format = format;
 231
 232   aspect_save_orig(width, height);
 233   aspect_save_prescale(d_width, d_height);
 234   update_xinerama_info();
 235
 236   window_width = d_width;
 237   window_height = d_height;
 238
 239   r = (vo_colorkey & 0x00ff0000) >> 16;
 240   g = (vo_colorkey & 0x0000ff00) >> 8;
 241   b = vo_colorkey & 0x000000ff;
 242   switch(vo_depthonscreen)
 243     {
 244     case 32:
 245       colorkey = vo_colorkey;
 246       break;
 247     case 24:
 248       colorkey = vo_colorkey & 0x00ffffff;
 249       break;
 250     case 16:
 251       colorkey = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
 252       break;
 253     case 15:
 254       colorkey = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3);
 255       break;
 256     default:
 257       mp_msg(MSGT_VO, MSGL_ERR, "Sorry, this (%d) color depth is not supported\n",
 258              vo_depthonscreen);
 259     }
 260   mp_msg(MSGT_VO, MSGL_V, "Using colorkey: %x\n", colorkey);
 261
 262   aspect(&d_width, &d_height, A_NOZOOM);
 263
 264   vo_dx=( vo_screenwidth - d_width ) / 2; vo_dy=( vo_screenheight - d_height ) / 2;
 265   vo_dx += xinerama_x;
 266   vo_dy += xinerama_y;
 267   vo_dwidth=d_width; vo_dheight=d_height;
 268
 269 #ifdef X11_FULLSCREEN
 270       if ( ( flags&VOFLAG_FULLSCREEN )||(flags & VOFLAG_SWSCALE) ) aspect(&d_width, &d_height, A_ZOOM);
 271 #endif
 272       dwidth = d_width;
 273       dheight = d_height;
 274       /* Make the window */
 275       XGetWindowAttributes(mDisplay, DefaultRootWindow(mDisplay), &attribs);
 276
 277       /* from vo_x11 */
 278       window_depth = attribs.depth;
 279       if ((window_depth != 15) && (window_depth != 16) && (window_depth != 24)
 280           && (window_depth != 32))
 281         window_depth = 24;
 282       XMatchVisualInfo(mDisplay, mScreen, window_depth, TrueColor, &vinfo);
 283
 284       xswa.background_pixel = BlackPixel(mDisplay, mScreen);
 285       xswa.border_pixel     = 0;
 286       xswa.colormap         = XCreateColormap(mDisplay, RootWindow(mDisplay, mScreen),
 287                                               vinfo.visual, AllocNone);
 288       xswamask = CWBackPixel | CWBorderPixel | CWColormap;
 289
 290             vo_x11_create_vo_window(&vinfo, vo_dx, vo_dy,
 291                   window_width, window_height, flags,
 292                   xswa.colormap, "xvidix", title);
 293             XChangeWindowAttributes(mDisplay, vo_window, xswamask, &xswa);
 294
 295   if ( ( !WinID )&&( flags&VOFLAG_FULLSCREEN ) ) { vo_dx=0; vo_dy=0; vo_dwidth=vo_screenwidth; vo_dheight=vo_screenheight; vo_fs=1; }
 296
 297   if(sub_vo->config(image_width,image_height,vo_dwidth,vo_dheight,
 298                     flags | VOFLAG_XOVERLAY_SUB_VO,NULL,format)) {
 299     mp_msg(MSGT_VO, MSGL_ERR, "xover: sub vo config failed\n");
 300     return 1;
 301   }
 302   colork.x11 = colorkey;
 303   colork.r = r;
 304   colork.g = g;
 305   colork.b = b;
 306   if(sub_vo->control(VOCTRL_XOVERLAY_SET_COLORKEY,&colork) != VO_TRUE)
 307     mp_msg(MSGT_VO, MSGL_WARN, "xover: set_colorkey failed\n");
 308
 309   set_window(1);
 310
 311   XSync(mDisplay, False);
 312
 313   panscan_calc();
 314
 315   return 0;
 316 }
 317
 318 static void check_events(void)
 319 {
 320   const int event = vo_x11_check_events(mDisplay);
 321
 322   if ((event & VO_EVENT_RESIZE) || (event & VO_EVENT_EXPOSE))
 323     set_window(0);
 324   sub_vo->check_events();
 325   return;
 326 }
 327
 328 /* draw_osd, flip_page, draw_slice, draw_frame should be
 329    overwritten with vidix functions (vosub_vidix.c) */
 330 static void draw_osd(void)
 331 {
 332   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo draw_osd!\n");
 333 }
 334
 335 static void flip_page(void)
 336 {
 337   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo flip_page!\n");
 338 }
 339
 340 static int draw_slice(uint8_t *src[], int stride[],
 341                            int w, int h, int x, int y)
 342 {
 343   UNUSED(src);
 344   UNUSED(stride);
 345   UNUSED(w);
 346   UNUSED(h);
 347   UNUSED(x);
 348   UNUSED(y);
 349   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo draw_slice!\n");
 350   return 1;
 351 }
 352
 353 static int draw_frame(uint8_t *src[])
 354 {
 355   UNUSED(src);
 356   mp_msg(MSGT_VO, MSGL_FATAL, "xover error: didn't used sub vo draw_frame!\n");
 357   return 1;
 358 }
 359
 360 static void uninit(void)
 361 {
 362   if(!vo_config_count) return;
 363   if(sub_vo) sub_vo->uninit();
 364   sub_vo = NULL;
 365   vo_x11_uninit();
 366   // Restore our callbacks
 367   video_out_xover.old_functions->draw_frame = draw_frame;
 368   video_out_xover.old_functions->draw_slice = draw_slice;
 369   video_out_xover.old_functions->flip_page = flip_page;
 370   video_out_xover.old_functions->draw_osd  = draw_osd;
 371 }
 372
 373 static int preinit(const char *arg)
 374 {
 375   int i;
 376
 377   if(!arg) {
 378     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay need a subdriver\n");
 379     return 1;
 380   }
 381
 382   const struct vo_driver *candidate;
 383   for(i = 0; (candidate = video_out_drivers[i]) != NULL; i++)
 384     if (!candidate->is_new && !strcmp(candidate->info->short_name,arg) &&
 385         strcmp(candidate->info->short_name,"xover"))
 386       break;
 387   if (!candidate) {
 388     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay: Subdriver %s not found\n", arg);
 389     return 1;
 390   }
 391
 392   const struct vo_old_functions *functions = candidate->old_functions;
 393   if (functions->control(VOCTRL_XOVERLAY_SUPPORT,NULL) != VO_TRUE) {
 394     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay: %s doesn't support XOverlay\n", arg);
 395     return 1;
 396   }
 397   // X11 init
 398   if (!vo_init()) return VO_FALSE;
 399   if(functions->preinit(NULL)) {
 400     mp_msg(MSGT_VO, MSGL_ERR, "VO XOverlay: Subvo init failed\n");
 401     return 1;
 402   }
 403   sub_vo = functions;
 404   sub_info = candidate->info;
 405   // Setup the sub vo callbacks
 406   video_out_xover.old_functions->draw_frame = sub_vo->draw_frame;
 407   video_out_xover.old_functions->draw_slice = sub_vo->draw_slice;
 408   video_out_xover.old_functions->flip_page = sub_vo->flip_page;
 409   video_out_xover.old_functions->draw_osd  = sub_vo->draw_osd;
 410   return 0;
 411 }
 412
 413 static int control(uint32_t request, void *data)
 414 {
 415   if(!sub_vo) return VO_ERROR;
 416   switch (request) {
 417   case VOCTRL_GET_PANSCAN:
 418     if ( !vo_config_count || !vo_fs ) return VO_FALSE;
 419     return VO_TRUE;
 420   case VOCTRL_ONTOP:
 421     vo_x11_ontop();
 422     return VO_TRUE;
 423   case VOCTRL_FULLSCREEN:
 424     vo_x11_fullscreen();
 425   case VOCTRL_SET_PANSCAN:
 426     if ( vo_fs && ( vo_panscan != vo_panscan_amount ) )
 427       {
 428         panscan_calc();
 429         set_window(0);
 430       }
 431     return VO_TRUE;
 432   default:
 433     return sub_vo->control(request,data);
 434   }
 435   return VO_NOTIMPL;
 436 }