kwin/plugins/qpa/integration.cpp
Vlad Zahorodnii 9b89a3d967 qpa: Merge OpenGL platform context classes
This makes our QPlatformOpenGLContext private subclass simpler.

As a slightly unrelated change, this patch also fixes a bug where our
platform opengl context may return a wrong surface format if surfaceless
contexts are unsupported.
2020-10-13 05:32:48 +00:00

154 lines
3.9 KiB
C++

/*
KWin - the KDE window manager
This file is part of the KDE project.
SPDX-FileCopyrightText: 2015 Martin Gräßlin <mgraesslin@kde.org>
SPDX-FileCopyrightText: 2019 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "integration.h"
#include "backingstore.h"
#include "eglplatformcontext.h"
#include "offscreensurface.h"
#include "screen.h"
#include "window.h"
#include "../../main.h"
#include "../../platform.h"
#include "../../screens.h"
#include <QCoreApplication>
#include <QtConcurrentRun>
#include <qpa/qplatformwindow.h>
#include <qpa/qwindowsysteminterface.h>
#include <QtEventDispatcherSupport/private/qunixeventdispatcher_qpa_p.h>
#include <QtFontDatabaseSupport/private/qgenericunixfontdatabase_p.h>
#include <QtThemeSupport/private/qgenericunixthemes_p.h>
namespace KWin
{
namespace QPA
{
Integration::Integration()
: QObject()
, QPlatformIntegration()
, m_fontDb(new QGenericUnixFontDatabase())
{
}
Integration::~Integration()
{
for (QPlatformScreen *platformScreen : m_screens) {
QWindowSystemInterface::handleScreenRemoved(platformScreen);
}
}
bool Integration::hasCapability(Capability cap) const
{
switch (cap) {
case ThreadedPixmaps:
return true;
case OpenGL:
return true;
case ThreadedOpenGL:
return false;
case BufferQueueingOpenGL:
return false;
case MultipleWindows:
case NonFullScreenWindows:
return true;
case RasterGLSurface:
return false;
default:
return QPlatformIntegration::hasCapability(cap);
}
}
void Integration::initialize()
{
connect(kwinApp(), &Application::screensCreated, this,
[this] {
connect(screens(), &Screens::changed, this, &Integration::initScreens);
initScreens();
}
);
QPlatformIntegration::initialize();
auto dummyScreen = new Screen(-1);
QWindowSystemInterface::handleScreenAdded(dummyScreen);
m_screens << dummyScreen;
}
QAbstractEventDispatcher *Integration::createEventDispatcher() const
{
return new QUnixEventDispatcherQPA;
}
QPlatformBackingStore *Integration::createPlatformBackingStore(QWindow *window) const
{
return new BackingStore(window);
}
QPlatformWindow *Integration::createPlatformWindow(QWindow *window) const
{
return new Window(window);
}
QPlatformOffscreenSurface *Integration::createPlatformOffscreenSurface(QOffscreenSurface *surface) const
{
return new OffscreenSurface(surface);
}
QPlatformFontDatabase *Integration::fontDatabase() const
{
return m_fontDb.data();
}
QPlatformTheme *Integration::createPlatformTheme(const QString &name) const
{
return QGenericUnixTheme::createUnixTheme(name);
}
QStringList Integration::themeNames() const
{
if (qEnvironmentVariableIsSet("KDE_FULL_SESSION")) {
return QStringList({QStringLiteral("kde")});
}
return QStringList({QLatin1String(QGenericUnixTheme::name)});
}
QPlatformOpenGLContext *Integration::createPlatformOpenGLContext(QOpenGLContext *context) const
{
const EGLDisplay eglDisplay = kwinApp()->platform()->sceneEglDisplay();
if (eglDisplay != EGL_NO_DISPLAY) {
EGLPlatformContext *platformContext = new EGLPlatformContext(context, eglDisplay);
return platformContext;
}
return nullptr;
}
void Integration::initScreens()
{
QVector<Screen*> newScreens;
newScreens.reserve(qMax(screens()->count(), 1));
for (int i = 0; i < screens()->count(); i++) {
auto screen = new Screen(i);
QWindowSystemInterface::handleScreenAdded(screen);
newScreens << screen;
}
if (newScreens.isEmpty()) {
auto dummyScreen = new Screen(-1);
QWindowSystemInterface::handleScreenAdded(dummyScreen);
newScreens << dummyScreen;
}
while (!m_screens.isEmpty()) {
QWindowSystemInterface::handleScreenRemoved(m_screens.takeLast());
}
m_screens = newScreens;
}
}
}