A C library for creating and drawing images using the PPM image format.
claycow.com
1/**
2 * PPM library for creating and drawing images using the PPM image format.
3 */
4
5#ifndef PPM_H
6#define PPM_H
7#include <stdint.h>
8
9typedef struct {
10 uint8_t r;
11 uint8_t g;
12 uint8_t b;
13} ppm_rgb;
14
15#define PPM_RED (ppm_rgb){255, 0, 0}
16#define PPM_GREEN (ppm_rgb){0, 255, 0}
17#define PPM_BLUE (ppm_rgb){0, 0, 255}
18#define PPM_WHITE (ppm_rgb){255, 255, 255}
19#define PPM_BLACK (ppm_rgb){0, 0, 0}
20
21typedef struct {
22 uint64_t width;
23 uint64_t height;
24 ppm_rgb *data;
25} ppm_image;
26
27ppm_image *ppm_create(uint64_t height, uint64_t width);
28ppm_image *ppm_create_with_background_color(uint64_t height, uint64_t width,
29 ppm_rgb background_color);
30int ppm_destroy(ppm_image *image);
31int ppm_to_ppm3_file(ppm_image *image, const char *file_path);
32int ppm_to_ppm6_file(ppm_image *image, const char *file_path);
33int ppm_draw_point(ppm_image *image, uint64_t x, uint64_t y, ppm_rgb color);
34int ppm_draw_circle(ppm_image *image, int x, int y, uint64_t radius,
35 ppm_rgb color);
36int ppm_draw_rectangle(ppm_image *image, int x, int y, uint64_t height,
37 uint64_t width, ppm_rgb color);
38int ppm_draw_line(ppm_image *image, int x1, int y1, int x2, int y2,
39 ppm_rgb color);
40int ppm_clear(ppm_image *image);
41int ppm_clear_with_background_color(ppm_image *image, ppm_rgb background_color);
42
43#endif