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111 lines
3.2 KiB
111 lines
3.2 KiB
/******************************************************************** |
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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) 2007 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 "showpaint.h" |
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#include <config-X11.h> |
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#ifdef HAVE_OPENGL |
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#include <GL/gl.h> |
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#endif |
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#ifdef HAVE_XRENDER |
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#include <X11/Xlib.h> |
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#include <X11/extensions/Xrender.h> |
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#endif |
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#include <math.h> |
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#include <qcolor.h> |
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namespace KWin |
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{ |
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KWIN_EFFECT( showpaint, ShowPaintEffect ) |
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static QColor colors[] = { Qt::red, Qt::green, Qt::blue, Qt::cyan, Qt::magenta, |
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Qt::yellow, Qt::gray }; |
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ShowPaintEffect::ShowPaintEffect() |
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: color_index( 0 ) |
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{ |
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} |
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void ShowPaintEffect::paintScreen( int mask, QRegion region, ScreenPaintData& data ) |
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{ |
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painted = QRegion(); |
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effects->paintScreen( mask, region, data ); |
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#ifdef HAVE_OPENGL |
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if( effects->compositingType() == OpenGLCompositing) |
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paintGL(); |
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#endif |
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#ifdef HAVE_XRENDER |
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if( effects->compositingType() == XRenderCompositing) |
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paintXrender(); |
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#endif |
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if( ++color_index == sizeof( colors ) / sizeof( colors[ 0 ] )) |
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color_index = 0; |
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} |
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void ShowPaintEffect::paintWindow( EffectWindow* w, int mask, QRegion region, WindowPaintData& data ) |
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{ |
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painted |= region; |
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effects->paintWindow( w, mask, region, data ); |
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} |
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// TODO I think we need some kind of generic paintRect() |
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void ShowPaintEffect::paintGL() |
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{ |
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#ifdef HAVE_OPENGL |
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glPushAttrib( GL_CURRENT_BIT | GL_ENABLE_BIT ); |
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glEnable( GL_BLEND ); |
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glBlendFunc( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ); |
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float alpha = 0.2; |
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const QColor& color = colors[ color_index ]; |
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glColor4f( color.red() / 255., color.green() / 255., color.blue() / 255., alpha ); |
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glBegin( GL_QUADS ); |
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foreach( QRect r, painted.rects()) |
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{ |
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glVertex2i( r.x(), r.y()); |
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glVertex2i( r.x() + r.width(), r.y()); |
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glVertex2i( r.x() + r.width(), r.y() + r.height()); |
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glVertex2i( r.x(), r.y() + r.height()); |
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} |
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glEnd(); |
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glPopAttrib(); |
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#endif |
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} |
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void ShowPaintEffect::paintXrender() |
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{ |
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#ifdef HAVE_XRENDER |
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XRenderColor col; |
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int alpha = 0.2; |
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const QColor& color = colors[ color_index ]; |
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col.alpha = int( alpha * 0xffff ); |
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col.red = int( alpha * 0xffff * color.red() / 255 ); |
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col.green = int( alpha * 0xffff * color.green() / 255 ); |
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col.blue= int( alpha * 0xffff * color.blue() / 255 ); |
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foreach( QRect r, painted.rects()) |
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XRenderFillRectangle( display(), PictOpOver, effects->xrenderBufferPicture(), |
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&col, r.x(), r.y(), r.width(), r.height()); |
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#endif |
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} |
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} // namespace
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