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#include "composite.h"
#include "openbox.h"
#include "extensions.h"
#ifndef USE_XCOMPOSITE
void composite_startup(gboolean reconfig) {}
void composite_shutdown(gboolean reconfig) {}
gboolean composite_window_has_alpha(Visual *vis) { return FALSE; }
XID composite_get_window_picture(Window win, Visual *vis) { return None; }
Pixmap composite_get_window_pixmap(Window win) { return None; }
void composite_setup_root_window() {}
void composite_enable_for_window(Window win) {}
#else
static Picture root_picture = None;
void composite_startup(gboolean reconfig)
{
if (reconfig) return;
if (!extensions_comp) return;
}
void composite_shutdown(gboolean reconfig)
{
if (reconfig) return;
if (!extensions_comp) return;
}
void composite_setup_root_window()
{
if (root_picture)
XRenderFreePicture(ob_display, root_picture);
root_picture =
composite_get_window_picture(RootWindow(ob_display, ob_screen),
RrVisual(ob_rr_inst));
}
gboolean composite_window_has_alpha(Visual *vis)
{
XRenderPictFormat *format;
if (!extensions_comp) return FALSE;
format = XRenderFindVisualFormat(ob_display, vis);
return format->type == PictTypeDirect && format->direct.alphaMask;
}
XID composite_get_window_picture(Window win, Visual *vis)
{
XRenderPictureAttributes pa;
XRenderPictFormat *format;
if (!extensions_comp) return None;
format = XRenderFindVisualFormat(ob_display, vis);
pa.subwindow_mode = IncludeInferiors;
return XRenderCreatePicture(ob_display, win, format, CPSubwindowMode, &pa);
}
Pixmap composite_get_window_pixmap(Window win)
{
if (!extensions_comp) return None;
return XCompositeNameWindowPixmap(ob_display, win);
}
void composite_enable_for_window(Window win)
{
/* Redirect window contents to offscreen pixmaps */
XCompositeRedirectWindow(ob_display, win, CompositeRedirectAutomatic);
}
#endif
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