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     2 **

     3 ** Copyright (C) 2009 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 QtMultimedia module of the Qt Toolkit.

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     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

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    23 **

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

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

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    38 ** $QT_END_LICENSE$

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

    41 

    42 #ifndef QABSTRACTVIDEOBUFFER_H

    43 #define QABSTRACTVIDEOBUFFER_H

    44 

    45 #include <QtCore/qmetatype.h>

    46 

    47 QT_BEGIN_HEADER

    48 

    49 QT_BEGIN_NAMESPACE

    50 

    51 QT_MODULE(Multimedia)

    52 

    53 class QVariant;

    54 

    55 class QAbstractVideoBufferPrivate;

    56 

    57 class Q_MULTIMEDIA_EXPORT QAbstractVideoBuffer

    58 {

    59 public:

    60     enum HandleType

    61     {

    62         NoHandle,

    63         GLTextureHandle,

    64         UserHandle = 1000

    65     };

    66 

    67     enum MapMode

    68     {

    69         NotMapped = 0x00,

    70         ReadOnly  = 0x01,

    71         WriteOnly = 0x02,

    72         ReadWrite = ReadOnly | WriteOnly

    73     };

    74 

    75     QAbstractVideoBuffer(HandleType type);

    76     virtual ~QAbstractVideoBuffer();

    77 

    78     HandleType handleType() const;

    79 

    80     virtual MapMode mapMode() const = 0;

    81 

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

    83     virtual void unmap() = 0;

    84 

    85     virtual QVariant handle() const;

    86 

    87 protected:

    88     QAbstractVideoBuffer(QAbstractVideoBufferPrivate &dd, HandleType type);

    89 

    90     QAbstractVideoBufferPrivate *d_ptr;

    91 

    92 private:

    93     Q_DECLARE_PRIVATE(QAbstractVideoBuffer)

    94     Q_DISABLE_COPY(QAbstractVideoBuffer)

    95 };

    96 

    97 QT_END_NAMESPACE

    98 

    99 Q_DECLARE_METATYPE(QAbstractVideoBuffer::HandleType)

   100 Q_DECLARE_METATYPE(QAbstractVideoBuffer::MapMode)

   101 

   102 QT_END_HEADER

   103 

   104 #endif