1 /****************************************************************************

     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the Qt Mobility Components.

     8 **

     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

    11 ** This file contains pre-release code and may not be distributed.

    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception

    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

    27 **

    28 ** If you have questions regarding the use of this file, please contact

    29 ** Nokia at qt-info@nokia.com.

    30 **

    31 **

    32 **

    33 **

    34 **

    35 **

    36 **

    37 **

    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QABSTRACTVIDEOBUFFER_H

    43 #define QABSTRACTVIDEOBUFFER_H

    44 

    45 #include <qmobilityglobal.h>

    46 #include <qtmedianamespace.h>

    47 

    48 

    49 #include <QtCore/qmetatype.h>

    50 

    51 QT_BEGIN_HEADER

    52 

    53 QT_BEGIN_NAMESPACE

    54 

    55 class QVariant;

    56 

    57 class QAbstractVideoBufferPrivate;

    58 

    59 class Q_MULTIMEDIA_EXPORT QAbstractVideoBuffer

    60 {

    61 public:

    62     enum HandleType

    63     {

    64         NoHandle,

    65         GLTextureHandle,

    66         XvShmImageHandle,

    67         CoreImageHandle,

    68         UserHandle = 1000

    69     };

    70 

    71     enum MapMode

    72     {

    73         NotMapped = 0x00,

    74         ReadOnly  = 0x01,

    75         WriteOnly = 0x02,

    76         ReadWrite = ReadOnly | WriteOnly

    77     };

    78 

    79     QAbstractVideoBuffer(HandleType type);

    80     virtual ~QAbstractVideoBuffer();

    81 

    82     HandleType handleType() const;

    83 

    84     virtual MapMode mapMode() const = 0;

    85 

    86     virtual uchar *map(MapMode mode, int *numBytes, int *bytesPerLine) = 0;

    87     virtual void unmap() = 0;

    88 

    89     virtual QVariant handle() const;

    90 

    91 protected:

    92     QAbstractVideoBuffer(QAbstractVideoBufferPrivate &dd, HandleType type);

    93 

    94     QAbstractVideoBufferPrivate *d_ptr;

    95 

    96 private:

    97     Q_DECLARE_PRIVATE(QAbstractVideoBuffer)

    98     Q_DISABLE_COPY(QAbstractVideoBuffer)

    99 };

   100 

   101 QT_END_NAMESPACE

   102 

   103 Q_DECLARE_METATYPE(QAbstractVideoBuffer::HandleType)

   104 Q_DECLARE_METATYPE(QAbstractVideoBuffer::MapMode)

   105 

   106 QT_END_HEADER

   107 

   108 #endif