FloatImg/floatimg.h

93 lines
2.2 KiB
C

/*
* floatimg.h
*/
#define FIMG_VERSION 72
/*
* in memory descriptor
*/
typedef struct {
int width;
int height;
int type;
float fval;
int count;
float *R, *G, *B, *A;
int reserved;
} FloatImg;
/*
* fimg file header
*/
typedef struct {
char magic[8];
int w, h, t;
} FimgFileHead;
#define FIMG_TYPE_GRAY 1
#define FIMG_TYPE_RGB 3
#define FIMG_TYPE_RGBA 4
/*
* core module
*/
int fimg_create(FloatImg *fimg, int w, int h, int t);
int fimg_destroy(FloatImg *fimg);
int fimg_print_version(int k);
void fimg_printhead(FloatImg *h);
int fimg_describe(FloatImg *head, char *txt);
char *fimg_str_type(int type);
int fimg_fileinfo(char *fname, int *datas);
int fimg_plot_rgb (FloatImg *head, int x, int y, float r, float g, float b);
int fimg_clear(FloatImg *fimg);
int fimg_add_rgb(FloatImg *head, int x, int y, float r, float g, float b);
int fimg_images_compatible(FloatImg *a, FloatImg *b);
int fimg_interpolate(FloatImg *s1, FloatImg *s2, FloatImg *d, float coef);
/* 'operats' module */
int fimg_add(FloatImg *a, FloatImg *b, FloatImg *d);
int fimg_sub(FloatImg *a, FloatImg *b, FloatImg *d);
int fimg_mul(FloatImg *a, FloatImg *b, FloatImg *d);
/* PNM files module */
int fimg_save_as_pnm(FloatImg *head, char *fname, int notused);
int fimg_load_from_pnm(char *fname, FloatImg *head, int notused);
double fimg_timer_set(int whot);
double fimg_timer_get(int whot);
int fimg_mk_gray_from(FloatImg *src, FloatImg*dst, int k);
/* FIMG files module */
int fimg_fileinfos(char *fname, int *datas);
int fimg_dump_to_file(FloatImg *head, char *fname, int notused);
int fimg_create_from_dump(char *fname, FloatImg *head);
/* mathematics operations */
float fimg_get_maxvalue(FloatImg *head);
int fimg_meanvalues(FloatImg *head, float means[4]);
int fimg_to_gray(FloatImg *head);
void fimg_add_cste(FloatImg *fi, float value);
void fimg_mul_cste(FloatImg *fi, float value);
void fimg_drand48(FloatImg *fi, float kmul);
/* various funcs modules */
int fimg_load_from_png(char *filename, FloatImg *fimg);
int fimg_create_from_png(char *filename, FloatImg *fimg);
int fimg_save_as_png(FloatImg *src, char *outname, int flags);
int fimg_draw_something(FloatImg *fimg);
int parse_WxH(char *str, int *pw, int *ph);