WGL_EXT_create_context_es_profile is sufficient for creating an ES2 context. WGL_EXT_create_context_es2_profile is not required, as WGL_EXT_create_context_es_profile supercedes it.

Reported by Jose. Archived at (http://www.mail-archive.com/waffle@lists.freedesktop.org/msg00695.html).

From: Jose Fonseca jfonseca@vmware.com To: Emil Velikov emil.l.velikov@gmail.com, "waffle@lists.freedesktop.org" waffle@lists.freedesktop.org Date: Wed, 12 Nov 2014 16:28:42 +0000 Message-ID: 5fa2bed46ff84ee5a314c86944f81f02@EX13-MBX-017.vmware.com In-Reply-To: 1415573938-28484-1-git-send-email-emil.l.velikov@gmail.com Subject: Re: [waffle] [PULL] WGL support

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.