/usr/include/waili/LChannelC.h is in libwaili-dev 19990723-22.1.
This file is owned by root:root, with mode 0o644.
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// LChannelC Class
//
// $Id: LChannelC.h,v 4.3.2.1.2.1 1999/07/20 16:15:44 geert Exp $
//
// Copyright (C) 1996-1999 Department of Computer Science, K.U.Leuven, Belgium
//
// 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.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
#ifndef WAILI_LCHANNELC_H
#define WAILI_LCHANNELC_H
#include <assert.h>
#include "Blit.h"
// Lifted Channel Class (lifted Cols)
class LChannelC : public LChannel {
friend class NTChannel;
public:
// Construction/Destruction
LChannelC(const Wavelet &filter);
LChannelC(const Wavelet &filter, u_int cols, u_int rows,
int offx, int offy);
LChannelC(const LChannelC &channel);
// Properties
virtual void GetMask(u_int &maskx, u_int &masky) const;
virtual TransformType GetTransformType(void) const;
u_int GetRlow(void) const;
u_int GetRhigh(void) const;
// Manipulation
virtual PixType &operator()(u_int c, u_int r);
virtual PixType operator()(u_int c, u_int r) const;
PixType *pixaddr(u_int c, u_int r);
virtual void Resize(u_int cols, u_int rows);
virtual LChannelC *Clone(void) const;
virtual void SetOffsetX(int offx);
virtual void SetOffsetY(int offy);
virtual void Add(const Channel &channel);
virtual void Subtract(const Channel &channel);
virtual LChannelC *Diff(const Channel &channel) const;
// Wavelet Transforms
virtual NTChannel *IFwt(int x1, int y1, int x2, int y2) const;
protected:
// Internal Wavelet Transform Steps
virtual void Lazy(const NTChannel &source);
virtual void ILazy(NTChannel &dest) const;
virtual void CakeWalk(void);
virtual void ICakeWalk(void);
void Zip(const LChannelC &channel);
// Wavelet Based Operations
virtual LChannelC *Crop_rec(int x1, int y1, int x2, int y2,
NTChannel *top, NTChannel *bottom,
NTChannel *left, NTChannel *right) const;
virtual void Merge_rec(const Channel *channel,
NTChannel *top, NTChannel *bottom,
NTChannel *left, NTChannel *right);
virtual Channel *DownScale(u_int s, const Wavelet &wavelet);
private:
NTChannel *CropMergeH(LChannelC *channel, int x1, int y1_l, int y1_h,
int x2, int y2_l, int y2_h);
static const char *rcsid;
};
/////////////////////////////////////////////////////////////////////////////
//
// Inline Member Functions
//
/////////////////////////////////////////////////////////////////////////////
inline LChannelC::LChannelC(const Wavelet &filter)
: LChannel(filter, 2)
{
Shifts[SubBand_L] = filter.GetShiftL();
Shifts[SubBand_H] = filter.GetShiftH();
}
inline TransformType LChannelC::GetTransformType(void) const
{
return(TT_Cols);
}
inline u_int LChannelC::GetRlow(void) const
{
assert(SubBands[SubBand_L] != NULL);
return(SubBands[SubBand_L]->GetRows());
}
inline u_int LChannelC::GetRhigh(void) const
{
assert(SubBands[SubBand_H] != NULL);
return(SubBands[SubBand_H]->GetRows());
}
inline PixType &LChannelC::operator()(u_int c, u_int r)
{
Channel *channel;
#ifdef BOUNDS_CHECK
assert(c < Cols);
assert(r < Rows);
#endif // BOUNDS_CHECK
if (r < GetRlow())
channel = SubBands[0];
else {
r -= GetRlow();
channel = SubBands[1];
}
#ifdef BOUNDS_CHECK
assert(channel != NULL);
#endif // BOUNDS_CHECK
return((*channel)(c, r));
}
inline PixType LChannelC::operator()(u_int c, u_int r) const
{
Channel *channel;
#ifdef BOUNDS_CHECK
assert(c < Cols);
assert(r < Rows);
#endif // BOUNDS_CHECK
if (r < GetRlow())
channel = SubBands[0];
else {
r -= GetRlow();
channel = SubBands[1];
}
#ifdef BOUNDS_CHECK
assert(channel != NULL);
#endif // BOUNDS_CHECK
return((*channel)(c, r));
}
inline PixType *LChannelC::pixaddr(u_int c, u_int r)
{
Channel *channel;
#ifdef BOUNDS_CHECK
assert(c < Cols);
assert(r < Rows);
#endif // BOUNDS_CHECK
if (r < GetRlow())
channel = SubBands[0];
else {
r -= GetRlow();
channel = SubBands[1];
}
#ifdef BOUNDS_CHECK
assert(channel != NULL);
#endif // BOUNDS_CHECK
return channel->pixaddr(c, r);
}
inline LChannelC *LChannelC::Clone(void) const
{
return(new LChannelC(*this));
}
#endif // WAILI_LCHANNELC_H
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