107 lines
3.4 KiB
C++
107 lines
3.4 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2008 Lubos Lunak <l.lunak@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#include "kwinxrenderutils.h"
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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#include <qvector.h>
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#include <qpixmap.h>
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#include <kdebug.h>
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namespace KWin
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{
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// Convert QRegion to XserverRegion. All code uses XserverRegion
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// only when really necessary as the shared implementation uses
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// QRegion.
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XserverRegion toXserverRegion( QRegion region )
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{
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QVector< QRect > rects = region.rects();
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XRectangle* xr = new XRectangle[ rects.count() ];
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for( int i = 0;
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i < rects.count();
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++i )
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{
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xr[ i ].x = rects[ i ].x();
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xr[ i ].y = rects[ i ].y();
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xr[ i ].width = rects[ i ].width();
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xr[ i ].height = rects[ i ].height();
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}
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XserverRegion ret = XFixesCreateRegion( display(), xr, rects.count());
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delete[] xr;
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return ret;
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}
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// XRenderFind(Standard)Format() is a roundtrip, so cache the results
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static XRenderPictFormat* renderformats[ 33 ];
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static Picture createPicture( Pixmap pix, int depth )
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{
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if( pix == None )
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return None;
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if( renderformats[ depth ] == NULL )
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{
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switch( depth)
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{
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case 1:
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renderformats[ 1 ] = XRenderFindStandardFormat( display(), PictStandardA1 );
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break;
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case 8:
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renderformats[ 8 ] = XRenderFindStandardFormat( display(), PictStandardA8 );
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break;
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case 24:
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renderformats[ 24 ] = XRenderFindStandardFormat( display(), PictStandardRGB24 );
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break;
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case 32:
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renderformats[ 32 ] = XRenderFindStandardFormat( display(), PictStandardARGB32 );
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break;
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default:
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{
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XRenderPictFormat req;
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long mask = PictFormatType | PictFormatDepth;
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req.type = PictTypeDirect;
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req.depth = depth;
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renderformats[ depth ] = XRenderFindFormat( display(), mask, &req, 0 );
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break;
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}
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}
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if( renderformats[ depth ] == NULL )
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{
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kWarning( 1212 ) << "Could not find XRender format for depth" << depth;
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return None;
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}
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}
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return XRenderCreatePicture( display(), pix, renderformats[ depth ], 0, NULL );
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}
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XRenderPicture::XRenderPicture( QPixmap pix )
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: d( new XRenderPictureData( createPicture( pix.handle(), pix.depth())))
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{
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}
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XRenderPicture::XRenderPicture( Pixmap pix, int depth )
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: d( new XRenderPictureData( createPicture( pix, depth )))
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{
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}
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} // namespace
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#endif
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