mirror of
https://invent.kde.org/network/krfb
synced 2024-07-03 00:18:36 +00:00
133 lines
3.6 KiB
C++
133 lines
3.6 KiB
C++
/* This file is part of the KDE project
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Copyright (C) 2009 Collabora Ltd <info@collabora.co.uk>
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@author George Goldberg <george.goldberg@collabora.co.uk>
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (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 GNU
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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; see the file COPYING. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "framebuffermanager.h"
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#include "framebufferplugin.h"
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#include "krfbconfig.h"
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#include <KDebug>
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#include <KGlobal>
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#include <KServiceTypeTrader>
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#include <QtCore/QSharedPointer>
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class FrameBufferManagerStatic
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{
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public:
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FrameBufferManager instance;
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};
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K_GLOBAL_STATIC(FrameBufferManagerStatic, frameBufferManagerStatic)
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FrameBufferManager::FrameBufferManager()
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{
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kDebug();
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loadPlugins();
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}
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FrameBufferManager::~FrameBufferManager()
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{
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kDebug();
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}
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FrameBufferManager *FrameBufferManager::instance()
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{
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kDebug();
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return &frameBufferManagerStatic->instance;
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}
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void FrameBufferManager::loadPlugins()
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{
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kDebug();
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// Load the all the plugin factories here, for use later.
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KService::List offers = KServiceTypeTrader::self()->query("krfb/framebuffer");
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KService::List::const_iterator iter;
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for (iter = offers.constBegin(); iter < offers.constEnd(); ++iter) {
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QString error;
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KService::Ptr service = *iter;
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KPluginFactory *factory = KPluginLoader(service->library()).factory();
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if (!factory) {
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kWarning() << "KPluginFactory could not load the plugin:" << service->library();
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continue;
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}
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FrameBufferPlugin *plugin = factory->create<FrameBufferPlugin>(this);
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if (plugin) {
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kDebug() << "Loaded plugin:" << service->name();
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m_plugins.insert(service->library(), plugin);
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} else {
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kDebug() << error;
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}
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}
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}
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QSharedPointer<FrameBuffer> FrameBufferManager::frameBuffer(WId id)
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{
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kDebug();
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// See if there is still an existing framebuffer to this WId.
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if (m_frameBuffers.contains(id)) {
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QWeakPointer<FrameBuffer> weakFrameBuffer = m_frameBuffers.value(id);
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if (weakFrameBuffer) {
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kDebug() << "Found cached frame buffer.";
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return weakFrameBuffer.toStrongRef();
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} else {
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kDebug() << "Found deleted cached frame buffer. Don't use.";
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m_frameBuffers.remove(id);
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}
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}
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// We don't already have that frame buffer.
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QMap<QString, FrameBufferPlugin*>::const_iterator iter = m_plugins.constBegin();
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while (iter != m_plugins.constEnd()) {
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if (iter.key() == KrfbConfig::preferredFrameBufferPlugin()) {
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kDebug() << "Using FrameBuffer:" << KrfbConfig::preferredFrameBufferPlugin();
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QSharedPointer<FrameBuffer> frameBuffer(iter.value()->frameBuffer(id));
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if (frameBuffer) {
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m_frameBuffers.insert(id, frameBuffer.toWeakRef());
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return frameBuffer;
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}
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}
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++iter;
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}
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// No valid framebuffer plugin found.
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kDebug() << "No valid framebuffer found. returning null.";
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return QSharedPointer<FrameBuffer>();
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}
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#include "framebuffermanager.moc"
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