376   register JSAMPROW elemptr;  in convsamp()  local
381     elemptr = sample_data[elemr] + start_col;  in convsamp()
384     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
385     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
386     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
387     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
388     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
389     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
390     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
391     *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
396         *workspaceptr++ = (*elemptr++) - CENTERJSAMPLE;  in convsamp()
529   register JSAMPROW elemptr;  in convsamp_float()  local
534     elemptr = sample_data[elemr] + start_col;  in convsamp_float()
536     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
537     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
538     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
539     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
540     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
541     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
542     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
543     *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()
548         *workspaceptr++ = (FAST_FLOAT)((*elemptr++) - CENTERJSAMPLE);  in convsamp_float()