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Image noise/OCaml/Xlib: Difference between revisions
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{{libheader|OCaml-Xlib}}
By default this program displays the noise with double buffering.
The command-line options <code>-single</code> selects the single buffering.
Launch this program as a script with:
ocaml -I +Xlib Xlib.cma unix.cma noise_fps_x.ml
ocaml -I +Xlib Xlib.cma unix.cma noise_fps_x.ml -single
<lang ocaml>open Xlib
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done;
(* tell what was the FPS for num_frames frames *)
let t_end = Unix.gettimeofday() in
let fps = (float num_frames) /. (t_end -. t0) in
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print_float fps;
print_newline()</lang>
You can also compile this program to native-code with the following command:
:$ ocamlopt -I +Xlib Xlib.cmxa unix.cmxa noise_fps_x.ml -o noise_fps_x.opt
and then execute the result with:
:$ ./noise_fps_x.opt
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