106 lines
3 KiB
C++
106 lines
3 KiB
C++
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/********************************************************************
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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 "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->size(), QImage::Format_RGB32)
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, m_backend(backend)
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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*)backend->mappedMemory(),
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backend->bytesPerLine() / (backend->bitsPerPixel() / 8),
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backend->bufferSize() / backend->bytesPerLine(),
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backend->bytesPerLine(), 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 &m_renderBuffer;
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}
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bool FramebufferQPainterBackend::needsFullRepaint() const
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{
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return false;
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}
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void FramebufferQPainterBackend::prepareRenderingFrame()
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{
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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 (!VirtualTerminal::self()->isActive()) {
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return;
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}
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QPainter p(&m_backBuffer);
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p.drawImage(QPoint(0, 0), 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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void FramebufferQPainterBackend::renderCursor(QPainter *painter)
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{
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if (!m_backend->usesSoftwareCursor()) {
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return;
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}
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const QImage img = m_backend->softwareCursor();
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if (img.isNull()) {
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return;
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}
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const QPoint cursorPos = Cursor::pos();
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const QPoint hotspot = m_backend->softwareCursorHotspot();
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painter->drawImage(cursorPos - hotspot, img);
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m_backend->markCursorAsRendered();
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}
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}
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