Dogcows Code - chaz/openbox/blob - openbox/composite.c

   1 #include "composite.h"
   2 #include "openbox.h"
   3 #include "extensions.h"
   4
   5 #ifndef USE_XCOMPOSITE
   6 void composite_startup(gboolean reconfig) {}
   7 void composite_shutdown(gboolean reconfig) {}
   8 gboolean composite_window_has_alpha(Visual *vis) { return FALSE; }
   9 XID composite_get_window_picture(Window win, Visual *vis) { return None; }
  10 Pixmap composite_get_window_pixmap(Window win) { return None; }
  11 #else
  12
  13 static Picture root_picture = None;
  14
  15 void composite_startup(gboolean reconfig)
  16 {
  17     if (reconfig) return;
  18     if (!extensions_comp) return;
  19
  20     /* Redirect window contents to offscreen pixmaps */
  21 /*
  22     XCompositeRedirectSubwindows(ob_display,
  23                                  RootWindow(ob_display, ob_screen),
  24                                  CompositeRedirectAutomatic);
  25 */
  26 }
  27
  28 void composite_shutdown(gboolean reconfig)
  29 {
  30     if (reconfig) return;
  31     if (!extensions_comp) return;
  32 }
  33
  34 void composite_setup_root_window()
  35 {
  36     if (root_picture)
  37         XRenderFreePicture(ob_display, root_picture);
  38
  39     root_picture =
  40         composite_get_window_picture(RootWindow(ob_display, ob_screen),
  41                                      RrVisual(ob_rr_inst));
  42 }
  43
  44 gboolean composite_window_has_alpha(Visual *vis)
  45 {
  46     XRenderPictFormat *format;
  47
  48     if (!extensions_comp) return FALSE;
  49
  50     format = XRenderFindVisualFormat(ob_display, vis);
  51     return format->type == PictTypeDirect && format->direct.alphaMask;
  52 }
  53
  54 XID composite_get_window_picture(Window win, Visual *vis)
  55 {
  56     XRenderPictureAttributes pa;
  57     XRenderPictFormat *format;
  58
  59     if (!extensions_comp) return None;
  60
  61     format = XRenderFindVisualFormat(ob_display, vis);
  62
  63     pa.subwindow_mode = IncludeInferiors;
  64     return XRenderCreatePicture(ob_display, win, format, CPSubwindowMode, &pa);
  65 }
  66
  67 Pixmap composite_get_window_pixmap(Window win)
  68 {
  69     if (!extensions_comp) return None;
  70
  71     return XCompositeNameWindowPixmap(ob_display, win);
  72 }
  73
  74 #endif