[Mesa-dev] Easy learning project for someone looking to get into Mesa development

[Marek Olšák]

I'd just add an alias "GL_ARB_texture_mirror_clamp_to_edge" ->
o(ATI_texture_mirror_once), so it would just be a one-liner change to
extensions.c.

Marek

On Mon, Oct 14, 2013 at 7:25 PM, Ian Romanick <idr at freedesktop.org> wrote:
> Here's a project for anyone looking to get into Mesa development that
> should be easy for anyone with decent C programming skills to tackle:
> GL_ARB_texture_mirror_clamp_to_edge.
>
> http://www.opengl.org/registry/specs/ARB/texture_mirror_clamp_to_edge.txt
>
> This extension is effectively a subset of another extension
> (GL_ATI_texture_mirror_once) that Mesa already supports.  Some hardware
> with drivers in Mesa support the ATI extension, and some hardware can
> only support the ARB extension.
>
> I think this should be as easy as:
>
> 1. Add a flag to gl_extensions (src/mesa/main/mtypes.h) for the new
> extension.  Please keep the list alphabetized.
>
> 2. Add the extension string to extension_table (src/mesa/main/extensions.c).
>
> 3. Update any place that checks the old extension flag to possibly also
> check the new extension flag.  Some places will, some won't.
>
> 4. Update the piglit tests that exercise the ATI extension to also
> exercise the ARB extension.
>
> 5. Update docs/GL3.txt. :)
>
> I think all of the Gallium drivers that can support the ARB extension
> already support the ATI extension, so there shouldn't be any extra work
> there.  I'm not 100% positive on that, though.
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