Artifact 96a6daac80ee4699ab2f8d2c55ffe2a04e9e6da4:

• File operator/div-rgba-rgb.crimp — part of check-in [b585eded7d] at 2011-11-23 04:33:44 on branch trunk — Modified the division operator involving grey8 to scale the result up by MAXVAL_GREY8. Without such scaling the result is mostly zero, which is not really wanted. (user: andreask size: 509) [more...]

div_rgba_rgb
Tcl_Obj* imageAObj
Tcl_Obj* imageBObj
int scale
int offset

/*
 * Pixel- and channel-wise scaled and biased subtraction of two images. The
 * images have to have equal dimensions. Values out of range are wrapped into
 * it (modulo).
 */

#define BINOP(a,b) ((((b) == 0 ? WHITE : (MAXVAL_GREY8 * (a) / (b))) / scale) + offset)
#include "binop_rgba_rgb.c"
#undef BINOP

/* vim: set sts=4 sw=4 tw=80 et ft=c: */
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */