RageSoundPosMap.h

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/*
 * pos_map_queue - maps one set of frame numbers to another
 */

#ifndef RAGE_SOUND_POS_MAP_H
#define RAGE_SOUND_POS_MAP_H

#include <deque>

struct pos_map_t
{
        /* Frame number from the POV of the sound driver: */
        int64_t frameno;

        /* Actual sound position within the sample: */
        int64_t position;

        /* The number of frames in this block: */
        int64_t frames;

        pos_map_t() { frameno=0; position=0; frames=0; }
        pos_map_t( int64_t frame, int pos, int cnt ) { frameno=frame; position=pos; frames=cnt; }
};

/* This class maps one range of frames to another. */
class pos_map_queue
{
        deque<pos_map_t> m_Queue;

        void Cleanup();

public:
        pos_map_queue();
        pos_map_queue( const pos_map_queue &cpy );

        /* Insert a mapping from frameno to position, containing pos got_frames. */
        void Insert( int64_t frameno, int position, int got_frames );

        /* Return the position for the given frameno. */
        int64_t Search( int64_t frameno, bool *approximate ) const;

        /* Erase all mappings. */
        void Clear();

        bool IsEmpty() const;
};


#endif

/*
 * Copyright (c) 2002-2004 Glenn Maynard
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, and/or sell copies of the Software, and to permit persons to
 * whom the Software is furnished to do so, provided that the above
 * copyright notice(s) and this permission notice appear in all copies of
 * the Software and that both the above copyright notice(s) and this
 * permission notice appear in supporting documentation.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
 * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
 * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
 * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
 * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
 * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

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