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Edward Emelianov
2021-03-29 18:27:24 +03:00
parent 2711e8586c
commit ae3f52db70
22 changed files with 3342 additions and 0 deletions
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96
ec_filter.h Normal file
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/*
* This file is part of the loccorr project.
* Copyright 2021 Edward V. Emelianov <edward.emelianoff@gmail.com>.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
// inner part of function `filter8`
#if ! defined IM_UP && ! defined IM_DOWN
OMP_FOR()
for(int y = 1; y < h; y++)
#endif
{
uint8_t *iptr = &image[W0*y];
uint8_t *optr = &ret[W0*y];
// x=0
register uint8_t inp = *iptr;
register uint8_t p = (inp << 1) | (inp >> 1)
#ifndef IM_UP
| iptr[-W0] | (iptr[-W0]<<1) | (iptr[-W0]>>1)
#endif
#ifndef IM_DOWN
| iptr[W0] | (iptr[W0]<<1) | (iptr[W0]>>1)
#endif
;
if((iptr[1]
#ifndef IM_UP
| iptr[-W0+1]
#endif
#ifndef IM_DOWN
| iptr[W0+1]
#endif
)& 0x80) p |= 1;
*optr++ = inp & p;
++iptr;
for(int x = 1; x < w; ++x){
inp = *iptr;
p = (inp << 1) | (inp >> 1)
#ifndef IM_UP
| iptr[-W0] | (iptr[-W0]<<1) | (iptr[-W0]>>1)
#endif
#ifndef IM_DOWN
| iptr[W0] | (iptr[W0]<<1) | (iptr[W0]>>1)
#endif
;
if((iptr[1]
#ifndef IM_UP
| iptr[-W0+1]
#endif
#ifndef IM_DOWN
| iptr[W0+1]
#endif
)& 0x80) p |= 1;
if((iptr[-1]
#ifndef IM_UP
| iptr[-W0-1]
#endif
#ifndef IM_DOWN
| iptr[W0-1]
#endif
)& 1) p |= 0x80;
*optr++ = inp & p;
++iptr;
}
// x = W0-1
inp = *iptr;
p = (inp << 1) | (inp >> 1)
#ifndef IM_UP
| iptr[-W0] | (iptr[-W0]<<1) | (iptr[-W0]>>1)
#endif
#ifndef IM_DOWN
| iptr[W0] | (iptr[W0]<<1) | (iptr[W0]>>1)
#endif
;
if((iptr[-1]
#ifndef IM_UP
| iptr[-W0-1]
#endif
#ifndef IM_DOWN
| iptr[W0-1]
#endif
)& 1) p |= 0x80;
*optr = inp & p;
}