p_row             105 modules/histogram.c     unsigned char *p_row = img + stage*ystep*byte_width + xstep_bytes;
p_row             115 modules/histogram.c     for(;p_row < p_max; p_row += ystep_bytes) {
p_row             117 modules/histogram.c         unsigned char *p = p_row;
p_row             118 modules/histogram.c         unsigned char *p_row_end = p_row + row_sample_len;