nuclear@0: /*
nuclear@0: colcycle - color cycling image viewer
nuclear@0: Copyright (C) 2016  John Tsiombikas <nuclear@member.fsf.org>
nuclear@0: 
nuclear@0: This program is free software: you can redistribute it and/or modify
nuclear@0: it under the terms of the GNU General Public License as published by
nuclear@0: the Free Software Foundation, either version 3 of the License, or
nuclear@0: (at your option) any later version.
nuclear@0: 
nuclear@0: This program is distributed in the hope that it will be useful,
nuclear@0: but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@0: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nuclear@0: GNU General Public License for more details.
nuclear@0: 
nuclear@0: You should have received a copy of the GNU General Public License
nuclear@0: along with this program.  If not, see <http://www.gnu.org/licenses/>.
nuclear@0: */
nuclear@0: #ifndef IMAGE_H_
nuclear@0: #define IMAGE_H_
nuclear@0: 
nuclear@0: enum cycle_mode {
nuclear@0: 	CYCLE_NORMAL = 0,
nuclear@0: 	CYCLE_UNUSED,	/* ? */
nuclear@0: 	CYCLE_REVERSE = 2,
nuclear@0: 	CYCLE_PINGPONG = 3,
nuclear@0: 	CYCLE_SINE_HALF = 4,	/* sine -> [0, range/2] */
nuclear@0: 	CYCLE_SINE = 5			/* sine -> [0, range] */
nuclear@0: };
nuclear@0: 
nuclear@0: struct color {
nuclear@0: 	unsigned char r, g, b;
nuclear@0: };
nuclear@0: 
nuclear@0: struct colrange {
nuclear@0: 	int low, high;
nuclear@0: 	int cmode;
nuclear@0: 	unsigned int rate;
nuclear@0: 	struct colrange *next;
nuclear@0: };
nuclear@0: 
nuclear@0: struct image {
nuclear@0: 	int width, height;
nuclear@0: 	int bpp;
nuclear@0: 	struct color palette[256];
nuclear@0: 	struct colrange *range;
nuclear@0: 	int num_ranges;
nuclear@0: 	unsigned char *pixels;
nuclear@0: };
nuclear@0: 
nuclear@0: int gen_test_image(struct image *img);
nuclear@0: int load_image(struct image *img, const char *fname);
nuclear@0: void destroy_image(struct image *img);
nuclear@0: 
nuclear@0: #endif	/* IMAGE_H_ */