From: Jacques Garrigue <garrigue@math.nagoya-u.ac.jp>
To: ogrigorov@gmail.com
Cc: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] saving/loading Raw to/from file
Date: Tue, 16 Oct 2007 06:28:40 +0900 (JST) [thread overview]
Message-ID: <20071016.062840.255394361.garrigue@math.nagoya-u.ac.jp> (raw)
In-Reply-To: <b17e12b30710151154t6f27d5cax977fcdb612b606d3@mail.gmail.com>
From: "Orlin Grigorov" <ogrigorov@gmail.com>
> With "GlPix.to_raw image" I can make the it raw, if that will help.
>
> The question is, I really need a way to save this "image" in a file, and be
> able to recreate it.
Once it is raw, you can read it with
Raw.gets_string raw ~pos:0 ~len:(Raw.byte_size raw)
You can read it back in the same way:
let raw = Raw.create `ubyte ~len:(w*h*4) in
Raw.sets_string raw ~pos:0 ~len:(w*h*4) s;
GlPix.of_raw raw ~format:`rgba ~width:w ~height:h
This should be efficient enough.
Once you get a string, you know how to do the I/O.
Jacques Garrigue
next prev parent reply other threads:[~2007-10-15 21:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-15 18:54 Orlin Grigorov
2007-10-15 19:03 ` [Caml-list] " Adrien
2007-10-15 21:27 ` Christophe Raffalli
2007-10-15 21:28 ` Jacques Garrigue [this message]
2007-10-16 23:00 ` Orlin Grigorov
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