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107 lines
3.0 KiB
C++
107 lines
3.0 KiB
C++
/********************************************************************
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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) 2015 Martin Gräßlin <mgraesslin@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 "scene_qpainter_fb_backend.h"
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#include "fb_backend.h"
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#include "composite.h"
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#include "logind.h"
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#include "cursor.h"
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#include "virtual_terminal.h"
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// Qt
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#include <QPainter>
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namespace KWin
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{
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FramebufferQPainterBackend::FramebufferQPainterBackend(FramebufferBackend *backend)
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: QObject()
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, QPainterBackend()
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, m_renderBuffer(backend->screenSize(), QImage::Format_RGB32)
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, m_backend(backend)
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, m_needsFullRepaint(true)
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{
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m_renderBuffer.fill(Qt::black);
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m_backend->map();
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m_backBuffer = QImage((uchar*)m_backend->mappedMemory(),
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m_backend->bytesPerLine() / (m_backend->bitsPerPixel() / 8),
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m_backend->bufferSize() / m_backend->bytesPerLine(),
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m_backend->bytesPerLine(), m_backend->imageFormat());
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m_backBuffer.fill(Qt::black);
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connect(VirtualTerminal::self(), &VirtualTerminal::activeChanged, this,
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[this] (bool active) {
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if (active) {
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Compositor::self()->bufferSwapComplete();
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Compositor::self()->addRepaintFull();
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} else {
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Compositor::self()->aboutToSwapBuffers();
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}
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}
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);
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}
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FramebufferQPainterBackend::~FramebufferQPainterBackend() = default;
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QImage* FramebufferQPainterBackend::buffer()
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{
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return bufferForScreen(0);
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}
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QImage* FramebufferQPainterBackend::bufferForScreen(int screenId)
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{
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Q_UNUSED(screenId)
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return &m_renderBuffer;
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}
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bool FramebufferQPainterBackend::needsFullRepaint() const
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{
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return m_needsFullRepaint;
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}
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void FramebufferQPainterBackend::prepareRenderingFrame()
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{
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m_needsFullRepaint = true;
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}
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void FramebufferQPainterBackend::present(int mask, const QRegion &damage)
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{
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Q_UNUSED(mask)
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Q_UNUSED(damage)
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if (!LogindIntegration::self()->isActiveSession()) {
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return;
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}
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m_needsFullRepaint = false;
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QPainter p(&m_backBuffer);
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p.drawImage(QPoint(0, 0), m_backend->isBGR() ? m_renderBuffer.rgbSwapped() : m_renderBuffer);
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}
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bool FramebufferQPainterBackend::usesOverlayWindow() const
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{
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return false;
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}
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bool FramebufferQPainterBackend::perScreenRendering() const
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{
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return true;
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}
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}
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