Re: Best way to put an array-based pixmap on a screen?

[dirk@feles.cs.kuleuven.be. (Dirk Craeynest)]

In article <cc019e12-33d8-4e05-910e-f9fc7f42fa06@googlegroups.com>,
LaeMing Ai  <laeming@exemail.com.au> wrote:
>[...] I want to set up a shim between my Ada environment and my Linux
>Desktop to facilitate monitoring my output, without having to mess
>about with the daunting (I quickly found) task of interfacing to SDL
>or GTK+!
>
>All I really want to see from my code's perspective is a 2D array of
>32-bit pixel values that I can manipulate from my developing Ada code,
>and not have to worry about the intricacies of window managers. [...]

You might want to take a look at the code Ludovic Brenta provided for
his series of presentations in several Ada Developer Rooms at past
FOSDEM events.  He used a minimal Ada interface to the xcb-library
to do exactly that, i.e. to display a 2D array of pixel values on
the screen.

For more info, see:

Ada DevRoom @ FOSDEM 2013
Ada Tasking: Multithreading Made Easy
<https://www.cs.kuleuven.be/~dirk/ada-belgium/events/13/130203-fosdem.html#multithreading>

Ada DevRoom @ FOSDEM 2014
Ada Task Pools: Multithreading Made Easy
<https://www.cs.kuleuven.be/~dirk/ada-belgium/events/14/140201-fosdem.html#multithreading>
video registration:
<http://ftp.belnet.be/FOSDEM/2014/K4601/Saturday/Ada_Task_Pools_Multithreading_Made_Easy.webm>

Ada DevRoom @ FOSDEM 2015
Multithreading Made Easy, part 3 - Bounded Work Queues
<https://www.cs.kuleuven.be/~dirk/ada-belgium/events/15/150131-fosdem.html#multithreading>
video registration (very low sound level):
<https://ftp.heanet.ie/mirrors/fosdem-video/2015/devroom-ada/multithreading__CAM_ONLY.mp4>
source distribution (latest version):
<https://www.cs.kuleuven.be/~dirk/ada-belgium/events/15/150131-fosdem/06-ada-multithreading.tgz>

HTH

Dirk
Dirk.Craeynest@cs.kuleuven.be (for Ada-Belgium/Ada-Europe/SIGAda/WG9)

*** 22nd Intl.Conf.on Reliable Software Technologies - Ada-Europe'2017
*** June 12-16, 2017 *** Vienna, Austria *** http://www.ada-europe.org