From: Kouhei Sutou <kou@...>
Date: 2006-11-11T15:55:16+09:00
Subject: Re: Linux Cairo, webcam displaying images

Hi,

In <45557881_4@news.peopletelecom.com.au>
  "Re: Linux Cairo, webcam displaying images" on Sat, 11 Nov 2006 15:20:04 +0900,
  Mike Durham <mdurham@people.net.au> wrote:

> Just a couple of questions to clarify things if you wouldn't mind.
> 
>  > Cairo::ImageSurface.new(data, format, width, height, stride) ->
> 
> is 'data' a Ruby string returned from the V4l?

Yes, it's a String. But I don't know V4l's data format. So,
I can't promise you that you can use V4l's data directory.

> what is 'format'?

One of the cairo_format_t:
  http://www.cairographics.org/manual/cairo-Image-Surfaces.html#id2598794

In rcairo, those formats are mapped to Cairo::FORMAT_XXX.


Thanks,
--
kou