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94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
/*
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* Copyright (C) 2005, 2006, 2007 by Siraj Razick <siraj@kde.org>
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*
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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 version 2,
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* or (at your option) any later version, as published by the Free
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* Software Foundation
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*
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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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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "QtDisplay.h"
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#include <config-lancelot.h>
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#ifdef LANCELOT_HAVE_COMPOSITING
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QtDisplay::QtDisplay(char * display, int screen)
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{
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_displayPtr = display;
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_screen = screen;
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_alpha = 0;
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_colormap = 0;
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_visualPtr = 0;
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_dpyPtr = XOpenDisplay(_displayPtr);
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this->testDisplay();
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_screen = DefaultScreen(_dpyPtr);
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setupXRender();
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}
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void QtDisplay::testDisplay()
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{
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if (!_dpyPtr) {
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exit(1);
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}
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}
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QtDisplay::~QtDisplay()
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{
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}
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/*Manpage : function Proto types
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1.) XVisualInfo *XGetVisualInfo ( Display *display , long vinfo_mask , XVisualInfo *vinfo_template , int *nitems_return );
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2.)
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*/
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void QtDisplay::setupXRender()
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{
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int tmp, tmp2;
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if (!XRenderQueryExtension(_dpyPtr, &tmp, &tmp2))
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return;
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XRenderPictFormat * m_xrender_pict_formatPtr;
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int m_xv_count = 0;
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XVisualInfo m_xvinfo;
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XVisualInfo * m_xvinfoAddr = &m_xvinfo;
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m_xvinfo.depth = 32;
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m_xvinfo.c_class = TrueColor;
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m_xvinfo.screen = _screen;
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long m_vinfo_mask = VisualScreenMask | VisualDepthMask | VisualClassMask;
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XVisualInfo * m_xvinfoPtr;
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m_xvinfoPtr = XGetVisualInfo(_dpyPtr, m_vinfo_mask, m_xvinfoAddr, &m_xv_count);
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for (int index = 0; index < m_xv_count ; index++) {
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m_xrender_pict_formatPtr = XRenderFindVisualFormat(_dpyPtr,
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m_xvinfoPtr[index].visual);
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if (m_xrender_pict_formatPtr->type == PictTypeDirect) {
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if (m_xrender_pict_formatPtr->direct.alphaMask) {
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_visualPtr = m_xvinfoPtr[index].visual;
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_colormap = XCreateColormap(_dpyPtr, RootWindow(_dpyPtr,_screen), _visualPtr, AllocNone);
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}
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}
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}
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}
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#endif // LANCELOT_HAVE_COMPOSITING
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