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// Copyright (C) 2014 BogDan Vatra <bogdan@kde.org>
// 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
// Qt-Security score:significant reason:default
#include "qandroidplatformopenglwindow.h"
#include "androidjnimain.h"
#include "qandroideventdispatcher.h"
#include "qandroidplatformscreen.h"
#include <QSurfaceFormat>
#include <QtGui/private/qwindow_p.h>
#include <QtGui/qguiapplication.h>
#include <QtGui/private/qeglconvenience_p.h>
#include <android/native_window.h>
#include <android/native_window_jni.h>
#include <qpa/qplatformscreen.h>
#include <qpa/qwindowsysteminterface.h>
QT_BEGIN_NAMESPACE
QAndroidPlatformOpenGLWindow::QAndroidPlatformOpenGLWindow(QWindow *window, EGLDisplay display)
:QAndroidPlatformWindow(window), m_eglDisplay(display)
{ }
QAndroidPlatformOpenGLWindow::~QAndroidPlatformOpenGLWindow()
{
m_surfaceWaitCondition.wakeOne();
lockSurface();
destroySurface();
clearSurface();
unlockSurface();
}
void QAndroidPlatformOpenGLWindow::setGeometry(const QRect &rect)
{
QAndroidPlatformWindow::setGeometry(rect);
QRect availableGeometry = screen()->availableGeometry();
if (rect.width() > 0
&& rect.height() > 0
&& availableGeometry.width() > 0
&& availableGeometry.height() > 0) {
QWindowSystemInterface::handleExposeEvent(window(), QRect(QPoint(0, 0), rect.size()));
}
}
// Called by QAndroidPlatformOpenGLContext::eglSurfaceForPlatformSurface(),
// surface is already locked when calling this
EGLSurface QAndroidPlatformOpenGLWindow::eglSurface(EGLConfig config)
{
// Avoid early return on initial suspension unless a surface was already created.
// This avoids the multi‑window startup race.
if (m_androidSurfaceCreated &&
(QAndroidEventDispatcherStopper::stopped() ||
QGuiApplication::applicationState() == Qt::ApplicationSuspended)) {
qCDebug(lcQpaWindow) << "Application not active, return existing surface.";
return m_eglSurface;
}
// If we haven't called createSurface() yet, call it and wait until Android has created
// the Surface
if (!m_androidSurfaceCreated) {
static constexpr char funcName[] = "QAndroidPlatformOpenGLWindow::eglSurface()";
QtAndroidPrivate::AndroidDeadlockProtector protector(funcName);
if (!protector.acquire()) {
qFatal("Failed to acquire deadlock protector for %s.", funcName);
return m_eglSurface;
}
createSurface();
qCDebug(lcQpaWindow) << "called createSurface(), waiting for Surface to be ready...";
m_surfaceWaitCondition.wait(&m_surfaceMutex);
}
if (m_eglSurface == EGL_NO_SURFACE)
ensureEglSurfaceCreated(config);
return m_eglSurface;
}
void QAndroidPlatformOpenGLWindow::applicationStateChanged(Qt::ApplicationState state)
{
if (state <= Qt::ApplicationHidden) {
lockSurface();
destroySurface();
clearSurface();
unlockSurface();
}
QAndroidPlatformWindow::applicationStateChanged(state);
}
// m_surfaceMutex already locked, called only by eglSurface()
// and QAndroidPlatformOpenGLContext::swapBuffers().
bool QAndroidPlatformOpenGLWindow::ensureEglSurfaceCreated(EGLConfig config)
{
// Either no surface created, or the m_eglSurface already wraps the active Surface,
// so makeCurrent is NOT needed, and we should not create a new EGL surface.
if (!m_androidSurfaceCreated || !m_androidSurfaceObject.isValid()) {
qCDebug(lcQpaWindow) << "Skipping create egl on invalid or not yet created surface";
return false;
}
clearSurface();
m_nativeWindow = ANativeWindow_fromSurface(
QJniEnvironment::getJniEnv(), m_androidSurfaceObject.object());
m_androidSurfaceObject = QJniObject();
m_eglSurface = eglCreateWindowSurface(m_eglDisplay, config, m_nativeWindow, NULL);
m_format = q_glFormatFromConfig(m_eglDisplay, config, window()->requestedFormat());
if (Q_UNLIKELY(m_eglSurface == EGL_NO_SURFACE)) {
EGLint error = eglGetError();
eglTerminate(m_eglDisplay);
qFatal("EGL Error : Could not create the egl surface: error = 0x%x\n", error);
}
// we've created another Surface, the window should be repainted
sendExpose();
incrementSurfacesCount();
return true;
}
QSurfaceFormat QAndroidPlatformOpenGLWindow::format() const
{
if (m_nativeWindow == 0)
return window()->requestedFormat();
return m_format;
}
void QAndroidPlatformOpenGLWindow::clearSurface()
{
if (m_eglSurface != EGL_NO_SURFACE) {
eglMakeCurrent(m_eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglDestroySurface(m_eglDisplay, m_eglSurface);
m_eglSurface = EGL_NO_SURFACE;
}
if (m_nativeWindow) {
ANativeWindow_release(m_nativeWindow);
m_nativeWindow = nullptr;
}
decrementSurfacesCount();
}
QT_END_NAMESPACE