mirror of
https://gitlab.gnome.org/GNOME/gimp
synced 2024-10-20 19:43:01 +00:00
a26f8d3f5c
* app/gimplut.[ch]: new source files that implement pixel Look Up Table functions. * app/Makefile.am: build gimplut.[ch] * app/brightness_contrast.c * app/curves.c * app/invert.c * app/levels.c * app/posterize.c: Use the new lut functions. Use pixel_region_process_parallel in the PDB versions of these routines. * libgimp/parasite.h * libgimp/parasite.c: new functions parasite_name and parasite_compare. * app/gimpdrawable.c: * app/gimpdrawable.h: new function gimp_drawable_get_color_at(...) returns the RGBA[color index] value at a specified position in the drawable. Don't set the dirty bit on the image if a new parasite is the same as the old. * app/gimpimage.c * app/gimpimage.h new function gimp_image_get_color_at(...) returns the RGBA[color index] value at a specified position in the drawable. Don't set the dirty bit on the image if a new parasite is the same as the old. * app/by_color_select.c * app/color_picker.c: use the new gimp_*_get_color_at functions instead of messing with the tiles. * app/layer.c: fixed a minor warning. * app/commands.c: don't scale the image if the new size == the old size * app/channel.c: optimized channel_bounds by only checking the pixels in a tile if it is not already entirely within the currently computed bounds.
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/* The GIMP -- an image manipulation program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimplut.h: Copyright (C) 1999 Jay Cox <jaycox@earthlink.net>
|
|
*
|
|
* 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 __GIMP_LUT_H__
|
|
#define __GIMP_LUT_H__
|
|
|
|
#include "gimplutF.h"
|
|
#include "pixel_region.h"
|
|
|
|
/* 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 float (*GimpLutFunc)(void *user_data, int nchannels,
|
|
int channel, float value);
|
|
|
|
GimpLut * gimp_lut_new ();
|
|
void gimp_lut_free (GimpLut *lut);
|
|
|
|
void gimp_lut_setup (GimpLut *, GimpLutFunc,
|
|
void *user_data,
|
|
int 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 *, GimpLutFunc,
|
|
void *user_data,
|
|
int nchannels);
|
|
|
|
void gimp_lut_process (GimpLut *lut,
|
|
PixelRegion *srcPR,
|
|
PixelRegion *destPR);
|
|
|
|
/* gimp_lut_process_2 is the same as gimp_lut_process but the lut
|
|
perameter is last instead of first. this is necesary because
|
|
pixel_region_process_paralell sends the user_data as the 1st
|
|
parameter, and the image_map functions send user_data as the last
|
|
parameter */
|
|
void gimp_lut_process_2 (PixelRegion *srcPR,
|
|
PixelRegion *destPR,
|
|
GimpLut *lut);
|
|
|
|
#endif /* __GIMP_LUT_H__ */
|