[waffle] [PULL] WGL support

[Chad Versace]

On Wed 12 Nov 2014, Jose Fonseca wrote:
>Hi Emil,
>
>I went through the new patches and they look good AFAICT.  Thanks for doing this.
>
>
>
>While going through "wgl: fully support ARB_create_context and EXT_create_context_es_profile." again  I noticed a couple of issues with the usage of WGL_EXT_create_context_es2_profile that I hadn't noticed before because I wasn't familiar with the extension:
>
>- WGL_EXT_create_context_es_profile ignored the opengl version, but WGL_EXT_create_context_es2_profile will create any version requested in.
>
>- I believe one must set WGL_CONTEXT_MAJOR_VERSION_ARB/WGL_CONTEXT_MINOR_VERSION_ARB when requesting ES contexts or one will always get a ES 1.0 context.
>
>- It's OK to assume that WGL_EXT_create_context_es2_profile then WGL_EXT_create_context_es_profile is supported, but not the other way around.
>
>  This is because WGL_EXT_create_context_es_profile ignored the version
>
>See "Revision History" at the bottom of https://www.opengl.org/registry/specs/EXT/wgl_create_context_es2_profile.txt for details.
>
>
>Anyway, this is nor urgent -- it can be fixed in a follow on patch.

Jose, thanks for spotting this bug. It also affects Waffle's GLX 
backend. So we don't forget about the bugs, I created two tickets:

for WGL: https://github.com/waffle-gl/waffle/issues/23
for GLX: https://github.com/waffle-gl/waffle/issues/24