|
|
|
|
/* vi: ts=8 sts=4 sw=4
|
|
|
|
|
* kate: space-indent on; tab-width 8; indent-width 4; indent-mode cstyle;
|
|
|
|
|
*
|
|
|
|
|
* This file is part of the KDE project, module kdesktop.
|
|
|
|
|
* Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org>
|
|
|
|
|
*
|
|
|
|
|
* You can Freely distribute this program under the GNU General Public
|
|
|
|
|
* License. See the file "COPYING" for the exact licensing terms.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef __CROSSFADE_H__
|
|
|
|
|
#define __CROSSFADE_H__
|
|
|
|
|
|
|
|
|
|
#include <tqtimer.h>
|
|
|
|
|
#include <tqpainter.h>
|
|
|
|
|
#include <tqpixmap.h>
|
|
|
|
|
#include <X11/X.h>
|
|
|
|
|
#include <X11/Xlib.h>
|
|
|
|
|
#include <X11/Xatom.h>
|
|
|
|
|
#include <X11/extensions/Xrender.h>
|
|
|
|
|
#include <kdebug.h>
|
|
|
|
|
#include <unistd.h>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
inline TQPixmap crossFade(const TQPixmap &pix1, const TQPixmap &pix2, double r_alpha,
|
|
|
|
|
bool sync = false){
|
|
|
|
|
|
|
|
|
|
TQPixmap pix = TQPixmap(1,1,8);
|
|
|
|
|
int mw,mh;
|
|
|
|
|
mw = pix1.width();
|
|
|
|
|
mh = pix1.height();
|
|
|
|
|
|
|
|
|
|
short unsigned int alpha = 0xffff * (1-r_alpha);
|
|
|
|
|
|
|
|
|
|
XRenderColor clr = { 0, 0, 0, alpha };
|
|
|
|
|
XRenderPictureAttributes pa;
|
|
|
|
|
pa.repeat = True;
|
|
|
|
|
Picture pic = XRenderCreatePicture(pix.x11Display(), pix.handle(),
|
|
|
|
|
XRenderFindStandardFormat (pix.x11Display(), PictStandardA8),
|
|
|
|
|
CPRepeat, &pa);
|
|
|
|
|
XRenderFillRectangle(pix.x11Display(), PictOpSrc, pic,
|
|
|
|
|
&clr, 0, 0, 1, 1);
|
|
|
|
|
TQPixmap dst(pix1);
|
|
|
|
|
dst.detach();
|
|
|
|
|
XRenderComposite(pix.x11Display(), PictOpOver, pix2.x11RenderHandle(),
|
|
|
|
|
pic, dst.x11RenderHandle(),0,0, 0,0, 0,0, mw,mh);
|
|
|
|
|
|
|
|
|
|
if (sync) {
|
|
|
|
|
XSync(pix.x11Display(), false);
|
|
|
|
|
}
|
|
|
|
|
XRenderFreePicture(pix.x11Display(), pic);
|
|
|
|
|
return dst;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
#endif // __CROSSFADE_H__
|
