mirror of https://github.com/GNOME/gimp.git
72 lines
2.5 KiB
C
72 lines
2.5 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimplut.h: Copyright (C) 1999 Jay Cox <jaycox@gimp.org>
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef __GIMP_LUT_H__
|
|
#define __GIMP_LUT_H__
|
|
|
|
|
|
struct _GimpLut
|
|
{
|
|
guchar **luts;
|
|
gint nchannels;
|
|
};
|
|
|
|
/* TODO: the GimpLutFunc should really be passed the ColorModel of the
|
|
* region, not just the number of channels
|
|
*/
|
|
|
|
/* GimpLutFuncs should assume that the input and output gamma are 1.0
|
|
* and do no correction as this will be handled by gimp_lut_setup
|
|
*/
|
|
typedef gfloat (*GimpLutFunc) (gpointer user_data,
|
|
gint nchannels,
|
|
gint channel,
|
|
gfloat value);
|
|
|
|
|
|
GimpLut * gimp_lut_new (void);
|
|
void gimp_lut_free (GimpLut *lut);
|
|
|
|
void gimp_lut_setup (GimpLut *lut,
|
|
GimpLutFunc func,
|
|
gpointer user_data,
|
|
gint nchannels);
|
|
|
|
/* gimp_lut_setup_exact is currently identical to gimp_lut_setup. It
|
|
* however is guaranteed to never perform any interpolation or gamma
|
|
* correction on the lut
|
|
*/
|
|
void gimp_lut_setup_exact (GimpLut *lut,
|
|
GimpLutFunc func,
|
|
gpointer user_data,
|
|
gint nchannels);
|
|
|
|
void gimp_lut_process (GimpLut *lut,
|
|
PixelRegion *srcPR,
|
|
PixelRegion *destPR);
|
|
|
|
/* gimp_lut_process_inline is like gimp_lut_process except it uses a
|
|
* single PixelRegion as both the source and destination
|
|
*/
|
|
void gimp_lut_process_inline (GimpLut *lut,
|
|
PixelRegion *src_destPR);
|
|
|
|
|
|
#endif /* __GIMP_LUT_H__ */
|