diff options
Diffstat (limited to 'src/kern.h')
| -rw-r--r-- | src/kern.h | 14 |
1 files changed, 10 insertions, 4 deletions
@@ -58,9 +58,12 @@ char *get_fbpath (int altpath, int fbno); * @param fbpath The path to the framebuffer device.. * @param width Output parameter for the width of the image. * @param height Output parameter for the height of the image. + * @parma data Additional data to pass to `convert_fb_to_pnm` + * and `convert_fb_to_png`. * @return Zero on success, -1 on error. */ -int measure (int fbno, char *restrict fbpath, long *restrict width, long *restrict height); +int measure (int fbno, char *restrict fbpath, long *restrict width, + long *restrict height, void **restrict data); /** * Convert read data from a framebuffer to PNM pixel data. @@ -72,10 +75,11 @@ int measure (int fbno, char *restrict fbpath, long *restrict width, long *restri * (a whole number of pixels where available,) * otherwise, set to the number of bytes a * pixel is encoded. + * @param data Data from `measure`. * @return Zero on success, -1 on error. */ -int convert_fb_to_pnm (FILE *restrict file, const char *restrict buf, - size_t n, size_t *restrict adjustment); +int convert_fb_to_pnm (FILE *restrict file, const char *restrict buf, size_t n, + size_t *restrict adjustment, void *restrict data); /** * Convert read data from a framebuffer to PNG pixel data. @@ -90,8 +94,10 @@ int convert_fb_to_pnm (FILE *restrict file, const char *restrict buf, * pixel is encoded. * @param state Use this to keep track of where in the you * stopped. It will be 0 on the first call. + * @param data Data from `measure`. * @return Zero on success, -1 on error. */ int convert_fb_to_png (png_struct *pngbuf, png_byte *restrict pixbuf, const char *restrict buf, - size_t n, long width3, size_t *restrict adjustment, long *restrict state); + size_t n, long width3, size_t *restrict adjustment, long *restrict state, + void *restrict data); |