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133 lines
3.9 KiB
133 lines
3.9 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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Copyright (C) 2010 Martin Gräßlin <kde@martin-graesslin.com> |
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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 <kwinconfig.h> |
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING |
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#include <kwinglutils.h> |
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#endif |
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING |
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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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}; |
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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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ShowPaintEffect::~ShowPaintEffect() |
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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 KWIN_HAVE_OPENGL_COMPOSITING |
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if (effects->compositingType() == OpenGLCompositing) |
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paintGL(); |
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#endif |
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING |
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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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void ShowPaintEffect::paintGL() |
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{ |
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#ifdef KWIN_HAVE_OPENGL_COMPOSITING |
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#ifndef KWIN_HAVE_OPENGLES |
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glPushAttrib(GL_CURRENT_BIT | GL_ENABLE_BIT); |
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#endif |
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GLVertexBuffer *vbo = GLVertexBuffer::streamingBuffer(); |
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vbo->reset(); |
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vbo->setUseColor(true); |
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if (ShaderManager::instance()->isValid()) { |
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ShaderManager::instance()->pushShader(ShaderManager::ColorShader); |
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} |
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glEnable(GL_BLEND); |
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
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QColor color = colors[ color_index ]; |
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color.setAlphaF(0.2); |
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vbo->setColor(color); |
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QVector<float> verts; |
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verts.reserve(painted.rects().count() * 12); |
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foreach (const QRect & r, painted.rects()) { |
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verts << r.x() + r.width() << r.y(); |
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verts << r.x() << r.y(); |
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verts << r.x() << r.y() + r.height(); |
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verts << r.x() << r.y() + r.height(); |
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verts << r.x() + r.width() << r.y() + r.height(); |
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verts << r.x() + r.width() << r.y(); |
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} |
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vbo->setData(verts.count() / 2, 2, verts.data(), NULL); |
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vbo->render(GL_TRIANGLES); |
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if (ShaderManager::instance()->isValid()) { |
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ShaderManager::instance()->popShader(); |
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} |
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glDisable(GL_BLEND); |
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#ifndef KWIN_HAVE_OPENGLES |
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glPopAttrib(); |
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#endif |
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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 KWIN_HAVE_XRENDER_COMPOSITING |
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XRenderColor col; |
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float 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 (const 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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