gimp/app/paint-funcs/scale-funcs.h

39 lines
1.4 KiB
C

/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 __SCALE_FUNCS_H__
#define __SCALE_FUNCS_H__
#define EPSILON (0.0001)
#define LANCZOS_SPP (1000)
#define LANCZOS_WIDTH (4)
#define LANCZOS_SAMPLES (1 + (LANCZOS_SPP * LANCZOS_WIDTH))
#define LANCZOS_WIDTH2 (LANCZOS_WIDTH * 2)
void scale_region (PixelRegion *srcPR,
PixelRegion *destPR,
GimpInterpolationType interpolation,
GimpProgressFunc progress_callback,
gpointer progress_data);
#endif /* __SCALE_FUNCS_H__ */