kwin/plugins/qpa/window.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

156 lines
3 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 "window.h"
#include "platform.h"
#include "screens.h"
#include "internal_client.h"
#include <logging.h>
#include <QOpenGLFramebufferObject>
#include <qpa/qwindowsysteminterface.h>
namespace KWin
{
namespace QPA
{
static quint32 s_windowId = 0;
Window::Window(QWindow *window)
: QPlatformWindow(window)
, m_windowId(++s_windowId)
, m_scale(screens()->maxScale())
{
}
Window::~Window()
{
unmap();
}
void Window::setVisible(bool visible)
{
if (visible) {
map();
} else {
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());
}
WId Window::winId() const
{
return m_windowId;
}
qreal Window::devicePixelRatio() const
{
return m_scale;
}
void Window::bindContentFBO()
{
if (m_resized || !m_contentFBO) {
createFBO();
}
m_contentFBO->bind();
}
const QSharedPointer<QOpenGLFramebufferObject> &Window::contentFBO() const
{
return m_contentFBO;
}
QSharedPointer<QOpenGLFramebufferObject> Window::swapFBO()
{
QSharedPointer<QOpenGLFramebufferObject> fbo = m_contentFBO;
m_contentFBO.clear();
return fbo;
}
InternalClient *Window::client() const
{
return m_handle;
}
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;
}
void Window::map()
{
if (m_handle) {
return;
}
m_handle = new InternalClient(window());
}
void Window::unmap()
{
if (!m_handle) {
return;
}
m_handle->destroyClient();
m_handle = nullptr;
m_contentFBO = nullptr;
}
EGLSurface Window::eglSurface() const
{
if (kwinApp()->platform()->supportsQpaContext()) {
return EGL_NO_SURFACE;
}
return kwinApp()->platform()->sceneEglSurface();
}
}
}