viewport_pix_width  195 modules/histogram.c             int viewport_pix_width = vid_get_viewport_width_proper();
viewport_pix_width  196 modules/histogram.c             int total_pixels = viewport_pix_width * viewport_height;
viewport_pix_width  218 modules/histogram.c             viewport_vis_byte_width = (viewport_pix_width*3)/2;
viewport_pix_width  221 modules/histogram.c             viewport_vis_byte_width = viewport_pix_width*2;