[Mesa-dev] [PATCH 1/5] mesa: add ARB_derivative_control extension bit

[Matt Turner]

On Wed, Aug 13, 2014 at 11:44 PM, Matt Turner <mattst88 at gmail.com> wrote:
> On Wed, Aug 13, 2014 at 9:52 PM, Ilia Mirkin <imirkin at alum.mit.edu> wrote:
>> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
>> ---
>>  src/mesa/main/extensions.c | 1 +
>>  src/mesa/main/mtypes.h     | 1 +
>>  2 files changed, 2 insertions(+)
>>
>> diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
>> index 8658ca8..3dcb199 100644
>> --- a/src/mesa/main/extensions.c
>> +++ b/src/mesa/main/extensions.c
>> @@ -101,6 +101,7 @@ static const struct extension extension_table[] = {
>>     { "GL_ARB_depth_buffer_float",                  o(ARB_depth_buffer_float),                  GL,             2008 },
>>     { "GL_ARB_depth_clamp",                         o(ARB_depth_clamp),                         GL,             2003 },
>>     { "GL_ARB_depth_texture",                       o(ARB_depth_texture),                       GLL,            2001 },
>> +   { "GL_ARB_derivative_control",                  o(ARB_derivative_control),                  GLC,            2014 },
>
> No reason to be core-only that I can see.

I guess we can just leave it up to the drivers to turn on the
extension if GLSL >= 4.00? Seems ugly. Also seems like a pretty
arbitrary requirement.