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/****************************************************************************
**
** Copyright (C) 2013 Research In Motion
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef WINDOWGRABBER_H
#define WINDOWGRABBER_H
#define EGL_EGLEXT_PROTOTYPES = 1
#define GL_GLEXT_PROTOTYPES = 1
#include <EGL/egl.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <EGL/eglext.h>
#include <QAbstractNativeEventFilter>
#include <QObject>
#include <QTimer>
#include <screen/screen.h>
QT_BEGIN_NAMESPACE
class WindowGrabber : public QObject, public QAbstractNativeEventFilter
{
Q_OBJECT
public:
explicit WindowGrabber(QObject *parent = 0);
~WindowGrabber();
void setFrameRate(int frameRate);
void createEglImages();
void setWindowId(const QByteArray &windowId);
void start();
void stop();
void pause();
void resume();
bool nativeEventFilter(const QByteArray &eventType, void *message, long *result) Q_DECL_OVERRIDE;
bool handleScreenEvent(screen_event_t event);
QByteArray windowGroupId() const;
bool eglImageSupported();
void checkForEglImageExtension();
bool eglImagesInitialized();
signals:
void frameGrabbed(const QImage &frame, int);
private slots:
void grab();
private:
void cleanup();
void updateFrameSize();
QTimer m_timer;
QByteArray m_windowId;
screen_window_t m_window;
screen_context_t m_screenContext;
screen_pixmap_t m_screenPixmaps[2];
screen_buffer_t m_screenPixmapBuffers[2];
char *m_screenBuffers[2];
int m_screenBufferWidth;
int m_screenBufferHeight;
int m_screenBufferStride;
bool m_active : 1;
bool m_screenContextInitialized : 1;
bool m_screenPixmapBuffersInitialized : 1;
int m_currentFrame;
EGLImageKHR img[2];
GLuint imgTextures[2];
bool m_eglImageSupported : 1;
bool m_eglImagesInitialized : 1;
bool m_eglImageCheck : 1; // We must not send a grabed frame before this is true
};
QT_END_NAMESPACE
#endif
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