1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/image.h	Mon Oct 28 16:07:25 2019 +0200
     1.3 @@ -0,0 +1,54 @@
     1.4 +/*
     1.5 +colcycle - color cycling image viewer
     1.6 +Copyright (C) 2016  John Tsiombikas <nuclear@member.fsf.org>
     1.7 +
     1.8 +This program is free software: you can redistribute it and/or modify
     1.9 +it under the terms of the GNU General Public License as published by
    1.10 +the Free Software Foundation, either version 3 of the License, or
    1.11 +(at your option) any later version.
    1.12 +
    1.13 +This program is distributed in the hope that it will be useful,
    1.14 +but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    1.16 +GNU General Public License for more details.
    1.17 +
    1.18 +You should have received a copy of the GNU General Public License
    1.19 +along with this program.  If not, see <http://www.gnu.org/licenses/>.
    1.20 +*/
    1.21 +#ifndef IMAGE_H_
    1.22 +#define IMAGE_H_
    1.23 +
    1.24 +enum cycle_mode {
    1.25 +	CYCLE_NORMAL = 0,
    1.26 +	CYCLE_UNUSED,	/* ? */
    1.27 +	CYCLE_REVERSE = 2,
    1.28 +	CYCLE_PINGPONG = 3,
    1.29 +	CYCLE_SINE_HALF = 4,	/* sine -> [0, range/2] */
    1.30 +	CYCLE_SINE = 5			/* sine -> [0, range] */
    1.31 +};
    1.32 +
    1.33 +struct color {
    1.34 +	unsigned char r, g, b;
    1.35 +};
    1.36 +
    1.37 +struct colrange {
    1.38 +	int low, high;
    1.39 +	int cmode;
    1.40 +	unsigned int rate;
    1.41 +	struct colrange *next;
    1.42 +};
    1.43 +
    1.44 +struct image {
    1.45 +	int width, height;
    1.46 +	int bpp;
    1.47 +	struct color palette[256];
    1.48 +	struct colrange *range;
    1.49 +	int num_ranges;
    1.50 +	unsigned char *pixels;
    1.51 +};
    1.52 +
    1.53 +int colc_gen_test_image(struct image *img);
    1.54 +int colc_load_image(struct image *img, const char *fname);
    1.55 +void colc_destroy_image(struct image *img);
    1.56 +
    1.57 +#endif	/* IMAGE_H_ */