Martin Gräßlin
11 years ago
parent
06d8206192
commit
df6221ae4a
6 changed files with 159 additions and 102 deletions
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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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|
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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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@ -0,0 +1,52 @@ |
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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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|
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Copyright (C) 2015 Martin Gräßlin <mgraesslin@kde.org> |
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|
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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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|
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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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|
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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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#ifndef KWIN_SCENE_QPAINTER_FB_BACKEND_H |
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#define KWIN_SCENE_QPAINTER_FB_BACKEND_H |
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#include "scene_qpainter.h" |
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#include <QObject> |
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namespace KWin |
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{ |
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class FramebufferBackend; |
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class FramebufferQPainterBackend : public QObject, public QPainterBackend |
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{ |
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Q_OBJECT |
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public: |
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FramebufferQPainterBackend(FramebufferBackend *backend); |
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virtual ~FramebufferQPainterBackend(); |
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QImage *buffer() override; |
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bool needsFullRepaint() const override; |
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bool usesOverlayWindow() const override; |
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void prepareRenderingFrame() override; |
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void present(int mask, const QRegion &damage) override; |
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void renderCursor(QPainter *painter) override; |
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private: |
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QImage m_renderBuffer; |
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QImage m_backBuffer; |
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FramebufferBackend *m_backend; |
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}; |
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} |
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#endif |
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