Re: OSMesa Help

Hi Andy,

You may need to look at some basic OpenGL examples.

There are some documentation about OS Mesa here 
http://www.mesa3d.org/osmesa.html
Some of this is outdated but you can get the gist of how it works.

There are some demos that show OS Mesa's use here 
http://www.mesa3d.org/download.html
look in the osdemos dir.

If you look at GL_VENDOR, GL_VERSION, GL_RENDERER gl fields you can 
verify which driver you're using ( 
http://www.opengl.org/wiki/GLAPI/glGetString). If all you care for is OS 
Mesa then disable all the other drivers when you configure your build.

Burlen


On 07/09/2013 10:16 PM, Andy Li wrote:
>
> Hello everyone,
>
>
> I have some questions regarding to OSMesa.
>
> I am currently working on a project which I have to use Mesa on an 
> embedded system.
>
> My current goal is to port the base functions over to the embedded 
> system, so that I can draw a line on a provided VGA screen.
>
> Since the embedded system I am using does not contain a GPU, therefore 
> I have decided to use OSMesa for rendering process.
>
> I am wondering if there are any documentations/ specifications for OSMesa?
>
> Anyone know which are the base functions that OSMesa used for the 
> rendering process?
>
> I have looked into src/mesa/swrast/s_lines.c and s_drawpix.c and 
> trying to figure out how the code works, am I in the right direction?
>
> Moreover, for example, if I found a drawpix() function, how do I know 
> if OSMesa actually used this function during rendering process? Is 
> there any tool/debugger I can use to confirm my findings?
>
>
> Thank you for your time.
>
>
> Andy.
>
>
>
> _______________________________________________
> mesa-users mailing list
> [email protected]
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