/*
 * Copyright 2009, Haiku Inc. All Rights Reserved.
 * Distributed under the terms of the MIT License.
 */
#ifndef _BITMAP_STREAM_H
#define _BITMAP_STREAM_H


#include <ByteOrder.h>
#include <DataIO.h>
#include <TranslationDefs.h>
#include <TranslatorFormats.h>


class BBitmap;


class BBitmapStream : public BPositionIO {
public:
                                                                BBitmapStream(BBitmap* bitmap = NULL);
        virtual                                         ~BBitmapStream();

        virtual ssize_t                         ReadAt(off_t offset, void* buffer, size_t size);
        virtual ssize_t                         WriteAt(off_t offset, const void* buffer,
                                                                        size_t size);
        virtual off_t                           Seek(off_t position, uint32 seekMode);
        virtual off_t                           Position() const;
        virtual off_t                           Size() const;
        virtual status_t                        SetSize(off_t size);

                        status_t                        DetachBitmap(BBitmap** _bitmap);

protected:
                        void                            SwapHeader(const TranslatorBitmap* source,
                                                                        TranslatorBitmap* destination);

protected:
                        TranslatorBitmap        fHeader;
                        BBitmap*                        fBitmap;
                        size_t                          fPosition;
                        size_t                          fSize;
                        bool                            fDetached;

private:
        virtual void _ReservedBitmapStream1();
        virtual void _ReservedBitmapStream2();

private:
                        TranslatorBitmap*       fBigEndianHeader;
                        long                            _reserved[5];
};


#endif  // _BITMAP_STREAM_H