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/* 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();
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__
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