kwin/plugins/qpa/window.cpp

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/********************************************************************
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 "integration.h"
#include "window.h"
#include "screens.h"
#include "../../shell_client.h"
#include "../../wayland_server.h"
#include <logging.h>
#include <QOpenGLFramebufferObject>
#include <qpa/qwindowsysteminterface.h>
#include <KWayland/Client/buffer.h>
#include <KWayland/Client/connection_thread.h>
#include <KWayland/Client/shell.h>
#include <KWayland/Client/surface.h>
namespace KWin
{
namespace QPA
{
static quint32 s_windowId = 0;
Window::Window(QWindow *window, KWayland::Client::Surface *surface, KWayland::Client::ShellSurface *shellSurface, const Integration *integration)
: QPlatformWindow(window)
, m_surface(surface)
, m_shellSurface(shellSurface)
, m_windowId(++s_windowId)
, m_integration(integration)
, m_scale(screens()->maxScale())
{
m_surface->setScale(m_scale);
QObject::connect(m_surface, &QObject::destroyed, window, [this] { m_surface = nullptr;});
QObject::connect(m_shellSurface, &QObject::destroyed, window, [this] { m_shellSurface = nullptr;});
waylandServer()->internalClientConection()->flush();
}
Window::~Window()
{
unmap();
delete m_shellSurface;
delete m_surface;
}
WId Window::winId() const
{
return m_windowId;
}
void Window::setVisible(bool visible)
{
if (!visible) {
unmap();
}
QPlatformWindow::setVisible(visible);
}
void Window::setGeometry(const QRect &rect)
{
const QRect &oldRect = geometry();
QPlatformWindow::setGeometry(rect);
if (rect.x() != oldRect.x()) {
emit window()->xChanged(rect.x());
}
if (rect.y() != oldRect.y()) {
emit window()->yChanged(rect.y());
}
if (rect.width() != oldRect.width()) {
emit window()->widthChanged(rect.width());
}
if (rect.height() != oldRect.height()) {
emit window()->heightChanged(rect.height());
}
const QSize nativeSize = rect.size() * m_scale;
if (m_contentFBO) {
if (m_contentFBO->size() != nativeSize) {
m_resized = true;
}
}
QWindowSystemInterface::handleGeometryChange(window(), geometry());
}
void Window::unmap()
{
if (m_shellClient) {
m_shellClient->setInternalFramebufferObject(QSharedPointer<QOpenGLFramebufferObject>());
}
if (m_surface) {
m_surface->attachBuffer(KWayland::Client::Buffer::Ptr());
m_surface->commit(KWayland::Client::Surface::CommitFlag::None);
}
if (waylandServer()->internalClientConection()) {
waylandServer()->internalClientConection()->flush();
}
}
void Window::bindContentFBO()
{
if (m_resized || !m_contentFBO) {
createFBO();
}
m_contentFBO->bind();
}
QSharedPointer<QOpenGLFramebufferObject> Window::swapFBO()
{
auto fbo = m_contentFBO;
m_contentFBO.clear();
m_surface->commit(KWayland::Client::Surface::CommitFlag::None);
return fbo;
}
void Window::createFBO()
{
const QRect &r = geometry();
if (m_contentFBO && r.size().isEmpty()) {
return;
}
const QSize nativeSize = r.size() * m_scale;
m_contentFBO.reset(new QOpenGLFramebufferObject(nativeSize.width(), nativeSize.height(), QOpenGLFramebufferObject::CombinedDepthStencil));
if (!m_contentFBO->isValid()) {
qCWarning(KWIN_QPA) << "Content FBO is not valid";
}
m_resized = false;
}
ShellClient *Window::shellClient()
{
if (!m_shellClient) {
waylandServer()->dispatch();
m_shellClient = waylandServer()->findClient(window());
}
return m_shellClient;
}
int Window::scale() const
{
return m_scale;
}
qreal Window::devicePixelRatio() const
{
return m_scale;
}
}
}