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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include <QtCore/qtextstream.h>
#include <QtGui/qwindow.h>
#include <QtGui/private/qguiapplication_p.h>
#include <qpa/qwindowsysteminterface.h>
#include <qpa/qplatformcursor.h>
#ifndef QT_NO_OPENGL
# include <QtOpenGL/private/qopenglcompositor_p.h>
#endif
#include "qeglfsscreen_p.h"
#include "qeglfswindow_p.h"
#include "qeglfshooks_p.h"
QT_BEGIN_NAMESPACE
QEglFSScreen::QEglFSScreen(EGLDisplay dpy)
: m_dpy(dpy),
m_surface(EGL_NO_SURFACE),
m_cursor(nullptr)
{
m_cursor = qt_egl_device_integration()->createCursor(this);
}
QEglFSScreen::~QEglFSScreen()
{
delete m_cursor;
}
QRect QEglFSScreen::geometry() const
{
QRect r = rawGeometry();
static int rotation = qEnvironmentVariableIntValue("QT_QPA_EGLFS_ROTATION");
switch (rotation) {
case 0:
case 180:
case -180:
break;
case 90:
case -90: {
int h = r.height();
r.setHeight(r.width());
r.setWidth(h);
break;
}
default:
qWarning("Invalid rotation %d specified in QT_QPA_EGLFS_ROTATION", rotation);
break;
}
return r;
}
QRect QEglFSScreen::rawGeometry() const
{
return QRect(QPoint(0, 0), qt_egl_device_integration()->screenSize());
}
int QEglFSScreen::depth() const
{
return qt_egl_device_integration()->screenDepth();
}
QImage::Format QEglFSScreen::format() const
{
return qt_egl_device_integration()->screenFormat();
}
QSizeF QEglFSScreen::physicalSize() const
{
return qt_egl_device_integration()->physicalScreenSize();
}
QDpi QEglFSScreen::logicalDpi() const
{
return qt_egl_device_integration()->logicalDpi();
}
QDpi QEglFSScreen::logicalBaseDpi() const
{
return qt_egl_device_integration()->logicalBaseDpi();
}
Qt::ScreenOrientation QEglFSScreen::nativeOrientation() const
{
return qt_egl_device_integration()->nativeOrientation();
}
Qt::ScreenOrientation QEglFSScreen::orientation() const
{
return qt_egl_device_integration()->orientation();
}
QPlatformCursor *QEglFSScreen::cursor() const
{
return m_cursor;
}
qreal QEglFSScreen::refreshRate() const
{
return qt_egl_device_integration()->refreshRate();
}
void QEglFSScreen::setPrimarySurface(EGLSurface surface)
{
m_surface = surface;
}
void QEglFSScreen::handleCursorMove(const QPoint &pos)
{
#ifndef QT_NO_OPENGL
const QOpenGLCompositor *compositor = QOpenGLCompositor::instance();
const QList<QOpenGLCompositorWindow *> windows = compositor->windows();
QEglFSIntegration *platformIntegration = static_cast<QEglFSIntegration *>(QGuiApplicationPrivate::platformIntegration());
// Generate enter and leave events like a real windowing system would do.
if (windows.isEmpty())
return;
// First window is always fullscreen.
if (windows.count() == 1) {
QWindow *window = windows[0]->sourceWindow();
if (platformIntegration->pointerWindow() != window) {
platformIntegration->setPointerWindow(window);
QWindowSystemInterface::handleEnterEvent(window, window->mapFromGlobal(pos), pos);
}
return;
}
QWindow *enter = nullptr, *leave = nullptr;
for (int i = windows.count() - 1; i >= 0; --i) {
QWindow *window = windows[i]->sourceWindow();
const QRect geom = window->geometry();
if (geom.contains(pos)) {
if (platformIntegration->pointerWindow() != window) {
leave = platformIntegration->pointerWindow();
platformIntegration->setPointerWindow(window);
enter = window;
}
break;
}
}
if (enter && leave) {
QWindowSystemInterface::handleEnterLeaveEvent(enter, leave, enter->mapFromGlobal(pos), pos);
} else if (enter) {
QWindowSystemInterface::handleEnterEvent(enter, enter->mapFromGlobal(pos), pos);
} else if (leave) {
QWindowSystemInterface::handleLeaveEvent(leave);
}
#else
Q_UNUSED(pos);
#endif
}
QPixmap QEglFSScreen::grabWindow(WId wid, int x, int y, int width, int height) const
{
#ifndef QT_NO_OPENGL
QOpenGLCompositor *compositor = QOpenGLCompositor::instance();
const QList<QOpenGLCompositorWindow *> windows = compositor->windows();
Q_ASSERT(!windows.isEmpty());
QImage img;
QEglFSWindow *primaryWin = static_cast<QEglFSWindow *>(windows.first()->sourceWindow()->handle());
if (primaryWin->isRaster() || primaryWin->backingStore()) {
// Request the compositor to render everything into an FBO and read it back. This
// is of course slow, but it's safe and reliable. It will not include the mouse
// cursor, which is a plus.
img = compositor->grab();
} else {
// Just a single OpenGL window without compositing. Do not support this case for now. Doing
// glReadPixels is not an option since it would read from the back buffer which may have
// undefined content when calling right after a swapBuffers (unless preserved swap is
// available and enabled, but we have no support for that).
qWarning("grabWindow: Not supported for non-composited OpenGL content. Use QQuickWindow::grabWindow() instead.");
return QPixmap();
}
if (!wid) {
const QSize screenSize = geometry().size();
if (width < 0)
width = screenSize.width() - x;
if (height < 0)
height = screenSize.height() - y;
return QPixmap::fromImage(img).copy(x, y, width, height);
}
foreach (QOpenGLCompositorWindow *w, windows) {
const QWindow *window = w->sourceWindow();
if (window->winId() == wid) {
const QRect geom = window->geometry();
if (width < 0)
width = geom.width() - x;
if (height < 0)
height = geom.height() - y;
QRect rect(geom.topLeft() + QPoint(x, y), QSize(width, height));
rect &= window->geometry();
return QPixmap::fromImage(img).copy(rect);
}
}
#else // QT_NO_OPENGL
Q_UNUSED(wid);
Q_UNUSED(x);
Q_UNUSED(y);
Q_UNUSED(width);
Q_UNUSED(height);
#endif
return QPixmap();
}
QWindow *QEglFSScreen::topLevelAt(const QPoint &point) const
{
#ifndef QT_NO_OPENGL
QOpenGLCompositor *compositor = QOpenGLCompositor::instance();
const QList<QOpenGLCompositorWindow *> windows = compositor->windows();
const int windowCount = windows.size();
// Higher z-order is at the end of the list
for (int i = windowCount - 1; i >= 0; i--) {
QWindow *window = windows[i]->sourceWindow();
if (window->isVisible() && window->geometry().contains(point))
return window;
}
#endif
return QPlatformScreen::topLevelAt(point);
}
QT_END_NAMESPACE
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