cinelerra-5.1/guicast/bcdisplayinfo.C

   1
   2 /*
   3  * CINELERRA
   4  * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
   5  *
   6  * This program 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  * This program 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
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "bcdisplay.h"
  23 #include "bcdisplayinfo.h"
  24 #include "bcsignals.h"
  25 #include "bcwindowbase.h"
  26 #include "clip.h"
  27 #include "language.h"
  28
  29 #include <X11/X.h>
  30 #include <X11/Xlib.h>
  31 #include <X11/Xutil.h>
  32 #include <unistd.h>
  33
  34 #define TEST_SIZE 128
  35 #define TEST_DSIZE 28
  36 #define TEST_SIZE2 164
  37
  38 int BC_DisplayInfo::top_border = -1;
  39 int BC_DisplayInfo::left_border = -1;
  40 int BC_DisplayInfo::bottom_border = -1;
  41 int BC_DisplayInfo::right_border = -1;
  42 int BC_DisplayInfo::auto_reposition_x = -1;
  43 int BC_DisplayInfo::auto_reposition_y = -1;
  44 char BC_DisplayInfo::gl_shader_version[64] = { 0, };
  45
  46 BC_DisplayInfo::BC_DisplayInfo(const char *display_name, int show_error)
  47 {
  48         vis = 0;
  49         depth = 0;
  50         scrnum = -1;
  51         xinerama_screens = -1;
  52         xinerama_info = 0;
  53         init_window(display_name, show_error);
  54 #ifdef HAVE_GL
  55         ncfgs = 0;
  56         fb_cfgs = 0;
  57         cfg = 0;
  58         vis_info = 0;
  59 #endif
  60 }
  61
  62 BC_DisplayInfo::~BC_DisplayInfo()
  63 {
  64         if( xinerama_info ) XFree(xinerama_info);
  65 #ifndef SINGLE_THREAD
  66         XCloseDisplay(display);
  67 #endif
  68 }
  69
  70
  71 void BC_DisplayInfo::parse_geometry(char *geom, int *x, int *y, int *width, int *height)
  72 {
  73         XParseGeometry(geom, x, y, (unsigned int*)width, (unsigned int*)height);
  74 }
  75
  76
  77 int BC_DisplayInfo::get_xinerama_screens()
  78 {
  79         if( xinerama_screens < 0 ) {
  80                 xinerama_screens = 0;
  81                 if( XineramaIsActive(display) )
  82                         xinerama_info = XineramaQueryScreens(display, &xinerama_screens);
  83         }
  84         return xinerama_screens;
  85 }
  86
  87 int BC_DisplayInfo::xinerama_geometry(int screen, int &x, int &y, int &w, int &h)
  88 {
  89         int screens = get_xinerama_screens();
  90         if( !screens ) return 1;
  91         if( screen >= 0 ) {
  92                 int k = screens;
  93                 while( --k >= 0 && xinerama_info[k].screen_number != screen );
  94                 if( k < 0 ) return 1;
  95                 x = xinerama_info[k].x_org;  w = xinerama_info[k].width;
  96                 y = xinerama_info[k].y_org;  h = xinerama_info[k].height;
  97         }
  98         else {
  99                 int sx0 = INT_MAX, sx1 = INT_MIN;
 100                 int sy0 = INT_MAX, sy1 = INT_MIN;
 101                 for( int i=0; i<screens; ++i ) {
 102                         int x0 = xinerama_info[i].x_org;
 103                         int x1 = x0 + xinerama_info[i].width;
 104                         if( sx0 > x0 ) sx0 = x0;
 105                         if( sx1 < x1 ) sx1 = x1;
 106                         int y0 = xinerama_info[i].y_org;
 107                         int y1 = y0 + xinerama_info[i].height;
 108                         if( sy0 > y0 ) sy0 = y0;
 109                         if( sy1 < y1 ) sy1 = y1;
 110                 }
 111                 x = sx0;  w = sx1 - sx0;
 112                 y = sy0;  h = sy1 - sy0;
 113         }
 114         return 0;
 115 }
 116
 117 int BC_DisplayInfo::xinerama_big_screen()
 118 {
 119         int screens = get_xinerama_screens();
 120         int best = 0, ret = -1;
 121         for( int k=screens; --k>=0; ) {
 122                 int w = xinerama_info[k].width, h = xinerama_info[k].height;
 123                 int sz = w * h;
 124                 if( sz > best ) {
 125                         ret = xinerama_info[k].screen_number;
 126                         best = sz;
 127                 }
 128         }
 129         return ret;
 130 }
 131
 132 static void get_top_coords(Display *display, Window win, int &px,int &py, int &tx,int &ty)
 133 {
 134         Window *pcwin = 0;  unsigned int ncwin = 0;
 135         Window cwin = 0, pwin = 0, root = 0;
 136         XQueryTree(display, win, &root, &pwin, &pcwin, &ncwin);
 137         if( pcwin ) XFree(pcwin);
 138         XTranslateCoordinates(display, pwin, root, 0,0, &px,&py, &cwin);
 139 //printf(" win=%lx, px/py=%d/%d\n", win, px,py);
 140
 141         int nx = px, ny = py;  pwin = win;
 142         for( int i=5; --i>=0; ) {
 143                 win = pwin;  pwin = 0;  pcwin = 0;  ncwin = 0;
 144                 Window rwin = 0;
 145 // XQuerytTree has been known to fail here
 146                 XQueryTree(display, win, &rwin, &pwin, &pcwin, &ncwin);
 147                 if( pcwin ) XFree(pcwin);
 148                 if( !rwin || rwin != root || pwin == root ) break;
 149                 XTranslateCoordinates(display, pwin, root, 0,0, &nx,&ny, &cwin);
 150 //printf(" win=%lx, nx/ny=%d/%d\n", win, nx,ny);
 151         }
 152         tx = nx;  ty = ny;
 153 }
 154
 155
 156 #ifdef HAVE_GL
 157 int BC_DisplayInfo::gl_fb_config()
 158 {
 159 #if 0
 160 // find prefered config via glxinfo: mesa_hack
 161         static int attribs[] = {
 162                 GLX_RGBA,
 163                 GLX_RED_SIZE, 1,
 164                 GLX_GREEN_SIZE, 1,
 165                 GLX_BLUE_SIZE, 1,
 166                 GLX_DEPTH_SIZE, 1,
 167                 GLX_STENCIL_SIZE, 1,
 168                 GLX_ACCUM_RED_SIZE, 1,
 169                 GLX_ACCUM_GREEN_SIZE, 1,
 170                 GLX_ACCUM_BLUE_SIZE, 1,
 171                 GLX_ACCUM_ALPHA_SIZE, 1,
 172                 GLX_DOUBLEBUFFER,
 173                 None
 174         };
 175         vis_info = glXChooseVisual(display, scrnum, attribs);
 176         VisualID vis_id = vis_info ? vis_info->visualid : 0;
 177         fb_cfgs = glXGetFBConfigs(display, scrnum, &ncfgs);
 178         int n = !fb_cfgs ? 0 : ncfgs;
 179         for( int i=0; --n>=0; ++i ) {
 180                 if( vis_info ) { XFree(vis_info);  vis_info = 0; }
 181                 vis_info = glXGetVisualFromFBConfig(display, cfg=fb_cfgs[i]);
 182                 if( vis_info && vis_info->visualid == vis_id ) break;
 183         }
 184         if( n < 0 ) {
 185                 cfg = 0;
 186                 if( fb_cfgs ) { XFree(fb_cfgs);  fb_cfgs = 0; }
 187                 if( vis_info ) { XFree(vis_info);  vis_info = 0; }
 188         }
 189 #endif
 190         if( !fb_cfgs ) do {
 191                 int fb_attrs[] = {
 192                         GLX_CONFIG_CAVEAT,      GLX_SLOW_CONFIG,
 193                         GLX_DRAWABLE_TYPE,      GLX_WINDOW_BIT | GLX_PBUFFER_BIT | GLX_PIXMAP_BIT,
 194                         GLX_DOUBLEBUFFER,       1,
 195                         GLX_RENDER_TYPE,        GLX_RGBA_BIT,
 196                         GLX_ACCUM_RED_SIZE,     1,
 197                         GLX_ACCUM_GREEN_SIZE,   1,
 198                         GLX_ACCUM_BLUE_SIZE,    1,
 199                         GLX_ACCUM_ALPHA_SIZE,   1,
 200                         GLX_RED_SIZE,           8,
 201                         GLX_GREEN_SIZE,         8,
 202                         GLX_BLUE_SIZE,          8,
 203                         GLX_ALPHA_SIZE,         8,
 204                         None
 205                 };
 206                 fb_cfgs = glXChooseFBConfig(display, scrnum, fb_attrs+2, &ncfgs);
 207                 if( fb_cfgs && ncfgs ) break;
 208                 fb_cfgs = glXChooseFBConfig(display, scrnum, fb_attrs+0, &ncfgs);
 209                 if( fb_cfgs && ncfgs ) break;
 210                 fb_attrs[5] = 0;
 211                 fb_cfgs = glXChooseFBConfig(display, scrnum, fb_attrs+2, &ncfgs);
 212                 if( fb_cfgs && ncfgs ) break;
 213                 fb_cfgs = glXChooseFBConfig(display, scrnum, fb_attrs+0, &ncfgs);
 214         } while(0);
 215         if( fb_cfgs && ncfgs ) {
 216                 for( int i=0; !vis_info && i<ncfgs; ++i )
 217                         vis_info = glXGetVisualFromFBConfig(display, cfg=fb_cfgs[i]);
 218         }
 219         if( vis_info ) {
 220                 vis = vis_info->visual;
 221                 depth = vis_info->depth;
 222         }
 223         else {
 224                 printf("%s\n", "BC_DisplayInfo::gl_fb_config failed");
 225                 cfg = 0;
 226         }
 227         return 0;
 228 }
 229
 230 int BC_DisplayInfo::gl_probe(Window win)
 231 {
 232         GLXContext glx_ctx = !cfg ? 0 :
 233                 glXCreateNewContext(display, cfg, GLX_RGBA_TYPE, 0, True);
 234         GLXWindow glx_win = !cfg ? 0 :
 235                 glXCreateWindow(display, cfg, win, 0);
 236         if( glx_ctx && glx_win &&
 237             glXMakeContextCurrent(display, glx_win, glx_win, glx_ctx) ) {
 238                 const char *shader_version = (const char *)
 239                         glGetString(GL_SHADING_LANGUAGE_VERSION);
 240                 if( shader_version )
 241                         strncpy(gl_shader_version, shader_version, sizeof(gl_shader_version));
 242         }
 243         glXMakeContextCurrent(display, None, None, 0);
 244         if( glx_ctx ) glXDestroyContext(display, glx_ctx);
 245         if( glx_win ) glXDestroyWindow(display, glx_win);
 246         if( fb_cfgs ) XFree(fb_cfgs);
 247         if( vis_info ) XFree(vis_info);
 248         return 0;
 249 }
 250 #endif
 251
 252
 253 void BC_DisplayInfo::test_window(int &x_out, int &y_out, int &x_out2, int &y_out2,
 254                 int x_in, int y_in)
 255 {
 256 #ifdef SINGLE_THREAD
 257         BC_Display::lock_display("BC_DisplayInfo::test_window");
 258 #endif
 259 #ifdef HAVE_GL
 260         gl_fb_config();
 261 #endif
 262         x_out = 0;
 263         y_out = 0;
 264         int x_out1 = 0;
 265         int y_out1 = 0;
 266         x_out2 = 0;
 267         y_out2 = 0;
 268
 269         unsigned long mask = CWEventMask | CWWinGravity | CWBackPixel | CWColormap;
 270         XSetWindowAttributes attr;
 271         attr.event_mask = StructureNotifyMask;
 272         attr.win_gravity = SouthEastGravity;
 273         attr.background_pixel = BlackPixel(display, scrnum);
 274         attr.colormap = XCreateColormap(display, rootwin, vis, AllocNone);
 275         Window win = XCreateWindow(display, rootwin,
 276                         x_in, y_in, TEST_SIZE, TEST_SIZE,
 277                         0, depth, InputOutput,
 278                         vis, mask, &attr);
 279         XSizeHints size_hints;
 280         XGetNormalHints(display, win, &size_hints);
 281         size_hints.flags = PPosition | PSize;
 282         size_hints.x = x_in;
 283         size_hints.y = y_in;
 284         size_hints.width = TEST_SIZE;
 285         size_hints.height = TEST_SIZE;
 286         XSetStandardProperties(display, win,
 287                 "x", "x", None, 0, 0, &size_hints);
 288         XClearWindow(display, win);
 289         XMapWindow(display, win);
 290         XFlush(display);  XSync(display, 0);  usleep(100000);
 291         XEvent event;
 292         int state = 0;
 293
 294         while( state < 3 ) {
 295                 XNextEvent(display, &event);
 296 //printf("BC_DisplayInfo::test_window 1 event=%d %d\n", event.type, XPending(display));
 297                 if( event.xany.window != win ) continue;
 298                 if( event.type != ConfigureNotify ) continue;
 299                 Window cwin = 0;
 300                 int rx = 0, ry = 0, px = 0, py = 0, tx = 0, ty = 0;
 301 //printf("BC_DisplayInfo::test_window 1 state=%d x=%d y=%d w=%d h=%d bw=%d sev=%d\n",
 302 //  state, event.xconfigure.x, event.xconfigure.y,
 303 //  event.xconfigure.width, event.xconfigure.height,
 304 //  event.xconfigure.border_width, event.xconfigure.send_event);
 305                 get_top_coords(display,win, px,py, tx,ty);
 306 //printf("x_in,y_in=%d,%d dx,dy=%d,%d\n", x_in,y_in, x_in-tx,y_in-ty);
 307                 switch( state ) {
 308                 case 0: // Get creation config
 309                         XTranslateCoordinates(display, win, rootwin, 0,0, &rx,&ry, &cwin);
 310                         x_out = rx - x_in;
 311                         y_out = ry - y_in;
 312                         XMoveResizeWindow(display, win, x_in,y_in, TEST_SIZE2,TEST_SIZE2);
 313                         XFlush(display);  XSync(display, 0);  usleep(100000);
 314                         ++state;
 315                         break;
 316                 case 1: // Get moveresize resizing
 317                         XTranslateCoordinates(display, win, rootwin, 0,0, &rx,&ry, &cwin);
 318                         x_out1 = px;
 319                         y_out1 = py;
 320                         x_in += TEST_DSIZE;  y_in += TEST_DSIZE;
 321                         XMoveResizeWindow(display, win, x_in,y_in, TEST_SIZE2,TEST_SIZE2);
 322                         XFlush(display);  XSync(display, 0);  usleep(100000);
 323                         ++state;
 324                         break;
 325                 case 2: // Get moveresize move
 326                         XTranslateCoordinates(display, win, rootwin, 0,0, &rx,&ry, &cwin);
 327                         x_out2 = px - x_out1 - TEST_DSIZE;
 328                         y_out2 = py - y_out1 - TEST_DSIZE;
 329                         ++state;
 330                         break;
 331                 }
 332         }
 333 //printf("\nBC_DisplayInfo::test_window 3 x0,y0=%d,%d, x1,y1=%d,%d, x2,y2=%d,%d\n",
 334 //  x_out,y_out, x_out1,y_out1, x_out2,y_out2);
 335 //printf("\nx_in,y_in=%d,%d\n", x_in,y_in);
 336
 337 #ifdef HAVE_GL
 338         gl_probe(win);
 339 #endif
 340         XDestroyWindow(display, win);
 341         XFlush(display);
 342         XSync(display, 0);
 343
 344         x_out = MAX(0, MIN(x_out, 48));
 345         y_out = MAX(0, MIN(y_out, 48));
 346
 347 #ifdef SINGLE_THREAD
 348         BC_Display::unlock_display();
 349 #endif
 350 }
 351
 352 void BC_DisplayInfo::init_borders()
 353 {
 354         if(top_border < 0)
 355         {
 356                 BC_DisplayInfo display_info;
 357                 display_info.test_window(left_border, top_border,
 358                         auto_reposition_x, auto_reposition_y, 100, 100);
 359                 right_border = left_border;
 360                 bottom_border = left_border;
 361 //printf("BC_DisplayInfo::init_borders border=%d %d auto=%d %d\n",
 362 //  left_border, top_border, auto_reposition_x, auto_reposition_y);
 363         }
 364 }
 365
 366
 367 int BC_DisplayInfo::get_top_border()
 368 {
 369         init_borders();
 370         return top_border;
 371 }
 372
 373 int BC_DisplayInfo::get_left_border()
 374 {
 375         init_borders();
 376         return left_border;
 377 }
 378
 379 int BC_DisplayInfo::get_right_border()
 380 {
 381         init_borders();
 382         return right_border;
 383 }
 384
 385 int BC_DisplayInfo::get_bottom_border()
 386 {
 387         init_borders();
 388         return bottom_border;
 389 }
 390
 391 const char *BC_DisplayInfo::get_gl_shader_version()
 392 {
 393         init_borders();
 394         return gl_shader_version;
 395 }
 396
 397 void BC_DisplayInfo::init_window(const char *display_name, int show_error)
 398 {
 399         if(display_name && display_name[0] == 0) display_name = NULL;
 400
 401 #ifdef SINGLE_THREAD
 402         display = BC_Display::get_display(display_name);
 403 #else
 404
 405 // This function must be the first Xlib
 406 // function a multi-threaded program calls
 407         XInitThreads();
 408
 409         if((display = XOpenDisplay(display_name)) == NULL)
 410         {
 411                 if(!show_error) return;
 412                 fprintf(stderr,_("BC_DisplayInfo::init_window: cannot open display \"%s\".\n"),
 413                         display_name ? display_name : "");
 414                 if(getenv("DISPLAY") == NULL)
 415                         fprintf(stderr, _("'DISPLAY' environment variable not set.\n"));
 416                 if((display = XOpenDisplay(0)) == NULL) {
 417                         fprintf(stderr,_("BC_DisplayInfo::init_window: cannot connect to X server.\n"));
 418                         exit(1);
 419                 }
 420         }
 421 #endif // SINGLE_THREAD
 422
 423 #ifdef SINGLE_THREAD
 424         BC_Display::lock_display("BC_DisplayInfo::init_window");
 425 #endif
 426         scrnum = DefaultScreen(display);
 427         rootwin = RootWindow(display, scrnum);
 428         vis = DefaultVisual(display, scrnum);
 429         depth = DefaultDepth(display, scrnum);
 430 #ifdef SINGLE_THREAD
 431         BC_Display::unlock_display();
 432 #endif // SINGLE_THREAD
 433 }
 434
 435
 436 int BC_DisplayInfo::get_root_w()
 437 {
 438 #ifdef SINGLE_THREAD
 439         BC_Display::lock_display("BC_DisplayInfo::get_root_w");
 440 #endif
 441         Screen *screen_ptr = XDefaultScreenOfDisplay(display);
 442         int result = WidthOfScreen(screen_ptr);
 443 #ifdef SINGLE_THREAD
 444         BC_Display::unlock_display();
 445 #endif
 446         return result;
 447 }
 448
 449 int BC_DisplayInfo::get_root_h()
 450 {
 451 #ifdef SINGLE_THREAD
 452         BC_Display::lock_display("BC_DisplayInfo::get_root_h");
 453 #endif
 454         Screen *screen_ptr = XDefaultScreenOfDisplay(display);
 455         int result = HeightOfScreen(screen_ptr);
 456 #ifdef SINGLE_THREAD
 457         BC_Display::unlock_display();
 458 #endif
 459         return result;
 460 }
 461
 462 int BC_DisplayInfo::get_abs_cursor_x()
 463 {
 464         int abs_x, abs_y, win_x, win_y;
 465         unsigned int temp_mask;
 466         Window temp_win;
 467
 468 #ifdef SINGLE_THREAD
 469         BC_Display::lock_display("BC_DisplayInfo::get_abs_cursor_x");
 470 #endif
 471         XQueryPointer(display, rootwin, &temp_win, &temp_win,
 472                         &abs_x, &abs_y, &win_x, &win_y, &temp_mask);
 473 #ifdef SINGLE_THREAD
 474         BC_Display::unlock_display();
 475 #endif
 476         return abs_x;
 477 }
 478
 479 int BC_DisplayInfo::get_abs_cursor_y()
 480 {
 481         int abs_x, abs_y, win_x, win_y;
 482         unsigned int temp_mask;
 483         Window temp_win;
 484
 485 #ifdef SINGLE_THREAD
 486         BC_Display::lock_display("BC_DisplayInfo::get_abs_cursor_y");
 487 #endif
 488         XQueryPointer(display, rootwin, &temp_win, &temp_win,
 489                         &abs_x, &abs_y, &win_x, &win_y, &temp_mask);
 490 #ifdef SINGLE_THREAD
 491         BC_Display::unlock_display();
 492 #endif
 493         return abs_y;
 494 }
 495
 496
 497 int BC_DisplayInfo::get_screen_count()
 498 {
 499         return XScreenCount(display);
 500 }
 501
 502
 503 const char *BC_DisplayInfo::host_display_name(const char *display_name)
 504 {
 505         return XDisplayName(display_name);
 506 }
 507