[Mesa-dev] WebGL test suite, and whitelisting drivers / OpenGL implementations in Firefox

Ian Romanick idr at freedesktop.org
Thu Jan 20 10:27:45 PST 2011

Hash: SHA1

On 01/20/2011 07:48 AM, Benoit Jacob wrote:
> ----- Original Message -----
>> ))We don't want to require GL_ARB_ES2_compatibility. So i'll try to
>> see how I can emulate this functionality on desktop OpenGL.
>> Hi Benoit,
>> Would you still use native GL ES support if available on the system ?
>> GL ES is still the preferred path for the ATI/AMD proprietary drivers.
> Sure! We support both OpenGL 2.1 and OpenGL ES 2.0 as back-ends, and ES is the best since it's closest to the WebGL API (using OpenGL 2.1 forces us to do quite costly emulation in a few cases, especially when drawing with vertex attrib 0 array disabled).
> Naive question --- how do we get a GL ES context: through GLX, or EGL?

EGL.  We're also adding support for GL_ARB_ES2_compatibility.  It might
be worth doing thing the ES2 way on desktop OpenGL implementations that
support that extension.  I believe that both AMD and NVIDIA already
support it on Windows and Linux.
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