-void reduce_depth(const RrInstance *inst, pixel32 *data, XImage *im);
-void increase_depth(const RrInstance *inst, pixel32 *data, XImage *im);
+void reduce_depth(const RrInstance *inst, RrPixel32 *data, XImage *im);
+void increase_depth(const RrInstance *inst, RrPixel32 *data, XImage *im);