c8280963e5
Summary: This change cleans up includes, fixes coding style issues, etc. Test Plan: Compiles. Reviewers: #kwin, romangg Reviewed By: #kwin, romangg Subscribers: romangg, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D22151
128 lines
3.7 KiB
C++
128 lines
3.7 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 "window.h"
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#include "backingstore.h"
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#include "../../wayland_server.h"
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#include <KWayland/Client/buffer.h>
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#include <KWayland/Client/connection_thread.h>
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#include <KWayland/Client/shm_pool.h>
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#include <KWayland/Client/surface.h>
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namespace KWin
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{
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namespace QPA
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{
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BackingStore::BackingStore(QWindow *w, KWayland::Client::ShmPool *shm)
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: QPlatformBackingStore(w)
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, m_shm(shm)
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, m_backBuffer(QSize(), QImage::Format_ARGB32_Premultiplied)
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{
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QObject::connect(m_shm, &KWayland::Client::ShmPool::poolResized,
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[this] {
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if (!m_buffer) {
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return;
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}
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auto b = m_buffer.toStrongRef();
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if (!b->isUsed()){
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return;
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}
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const QSize size = m_backBuffer.size();
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m_backBuffer = QImage(b->address(), size.width(), size.height(), QImage::Format_ARGB32_Premultiplied);
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m_backBuffer.setDevicePixelRatio(scale());
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}
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);
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}
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BackingStore::~BackingStore() = default;
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QPaintDevice *BackingStore::paintDevice()
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{
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return &m_backBuffer;
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}
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void BackingStore::resize(const QSize &size, const QRegion &staticContents)
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{
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Q_UNUSED(staticContents)
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m_size = size * scale();
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if (!m_buffer) {
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return;
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}
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m_buffer.toStrongRef()->setUsed(false);
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m_buffer.clear();
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}
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void BackingStore::flush(QWindow *window, const QRegion ®ion, const QPoint &offset)
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{
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Q_UNUSED(region)
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Q_UNUSED(offset)
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auto w = static_cast<Window *>(window->handle());
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auto s = w->surface();
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if (!s) {
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return;
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}
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s->attachBuffer(m_buffer);
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// TODO: proper damage region
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s->damage(QRect(QPoint(0, 0), m_backBuffer.size() / scale()));
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s->commit(KWayland::Client::Surface::CommitFlag::None);
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waylandServer()->internalClientConection()->flush();
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waylandServer()->dispatch();
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}
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void BackingStore::beginPaint(const QRegion&)
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{
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if (m_buffer) {
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auto b = m_buffer.toStrongRef();
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if (b->isReleased()) {
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// we can re-use this buffer
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b->setReleased(false);
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return;
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} else {
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// buffer is still in use, get a new one
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b->setUsed(false);
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}
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}
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auto oldBuffer = m_buffer.toStrongRef();
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m_buffer.clear();
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m_buffer = m_shm->getBuffer(m_size, m_size.width() * 4);
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if (!m_buffer) {
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m_backBuffer = QImage();
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return;
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}
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auto b = m_buffer.toStrongRef();
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b->setUsed(true);
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m_backBuffer = QImage(b->address(), m_size.width(), m_size.height(), QImage::Format_ARGB32_Premultiplied);
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m_backBuffer.setDevicePixelRatio(scale());
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if (oldBuffer) {
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b->copy(oldBuffer->address());
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} else {
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m_backBuffer.fill(Qt::transparent);
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}
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}
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int BackingStore::scale() const
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{
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return static_cast<Window *>(window()->handle())->scale();
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}
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}
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}
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