void gfximage_save_jpeg(gfximage_t*image, const char*filename, int quality);
void gfximage_save_png(gfximage_t*image, const char*filename);
gfximage_t* gfximage_rescale(gfximage_t*image, int newwidth, int newheight);
void gfximage_save_jpeg(gfximage_t*image, const char*filename, int quality);
void gfximage_save_png(gfximage_t*image, const char*filename);
gfximage_t* gfximage_rescale(gfximage_t*image, int newwidth, int newheight);