/******************************************************************** KWin - the KDE window manager This file is part of the KDE project. Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. *********************************************************************/ #include "scene_qpainter_fb_backend.h" #include "fb_backend.h" #include "composite.h" #include "logind.h" #include "cursor.h" #include "virtual_terminal.h" // Qt #include <QPainter> namespace KWin { FramebufferQPainterBackend::FramebufferQPainterBackend(FramebufferBackend *backend) : QObject() , QPainterBackend() , m_renderBuffer(backend->screenSize(), QImage::Format_RGB32) , m_backend(backend) , m_needsFullRepaint(true) { m_renderBuffer.fill(Qt::black); m_backend->map(); m_backBuffer = QImage((uchar*)m_backend->mappedMemory(), m_backend->bytesPerLine() / (m_backend->bitsPerPixel() / 8), m_backend->bufferSize() / m_backend->bytesPerLine(), m_backend->bytesPerLine(), m_backend->imageFormat()); m_backBuffer.fill(Qt::black); connect(VirtualTerminal::self(), &VirtualTerminal::activeChanged, this, [] (bool active) { if (active) { Compositor::self()->bufferSwapComplete(); Compositor::self()->addRepaintFull(); } else { Compositor::self()->aboutToSwapBuffers(); } } ); } FramebufferQPainterBackend::~FramebufferQPainterBackend() = default; QImage* FramebufferQPainterBackend::buffer() { return bufferForScreen(0); } QImage* FramebufferQPainterBackend::bufferForScreen(int screenId) { Q_UNUSED(screenId) return &m_renderBuffer; } bool FramebufferQPainterBackend::needsFullRepaint() const { return m_needsFullRepaint; } void FramebufferQPainterBackend::prepareRenderingFrame() { m_needsFullRepaint = true; } void FramebufferQPainterBackend::present(int mask, const QRegion &damage) { Q_UNUSED(mask) Q_UNUSED(damage) if (!LogindIntegration::self()->isActiveSession()) { return; } m_needsFullRepaint = false; QPainter p(&m_backBuffer); p.drawImage(QPoint(0, 0), m_backend->isBGR() ? m_renderBuffer.rgbSwapped() : m_renderBuffer); } bool FramebufferQPainterBackend::usesOverlayWindow() const { return false; } bool FramebufferQPainterBackend::perScreenRendering() const { return true; } }