convert_2rgb_rgba Tcl_Obj* imageObj /* * RGBA --> RGB, * i.e. this operation removes the input image's alpha channel. */ crimp_image* image; crimp_image* result; int x, y, h, s, v; crimp_input (imageObj, image, rgba); result = crimp_new_rgb (image->w, image->h); for (y = 0; y < image->h; y++) { for (x = 0; x < image->w; x++) { R (result, x, y) = R (image, x, y); G (result, x, y) = G (image, x, y); B (result, x, y) = B (image, x, y); } } Tcl_SetObjResult(interp, crimp_new_image_obj (result)); return TCL_OK; /* vim: set sts=4 sw=4 tw=80 et ft=c: */ /* * Local Variables: * mode: c * c-basic-offset: 4 * fill-column: 78 * End: */