view data/model/PowerOfSqrtTwoZoomConstraint.h @ 348:edda24bb85fc

* Skip ID3 block when reading MP3 files (so long as ID3 support is included)
* Show progress when retrieving audio file from playlist
* Avoid -- but do not actually fix -- segmentation fault on exit.  I am
  totally stumped at the moment about why both the PA and JACK audio targets
  should crash when properly shut down.  For the moment, we just don't shut
  them down...
* Fix incorrect behaviour (introduced on Friday as part of a different fix)
  when replacing main model in situation where no current main model exists

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2006 Chris Cannam.
    
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef _POWER_OF_SQRT_TWO_ZOOM_CONSTRAINT_H_
#define _POWER_OF_SQRT_TWO_ZOOM_CONSTRAINT_H_

#include "base/ZoomConstraint.h"

class PowerOfSqrtTwoZoomConstraint : virtual public ZoomConstraint
{
public:
    virtual size_t getNearestBlockSize(size_t requestedBlockSize,
				       RoundingDirection dir = RoundNearest)
	const;
    
    virtual size_t getNearestBlockSize(size_t requestedBlockSize,
				       int &type,
				       int &power,
				       RoundingDirection dir = RoundNearest)
	const;
	
    virtual size_t getMinCachePower() const { return 6; }
};

#endif