Dave Airlie <[email protected]> writes: > On Fri, Aug 31, 2012 at 1:32 AM, Ian Romanick <[email protected]> wrote: >> On 08/30/2012 02:33 PM, Brian Paul wrote: >>> >>> On 08/30/2012 08:08 AM, Ian Romanick wrote: >>>> >>>> It occurs to me that, even though the i965 driver can support OpenGL >>>> 3.1 on some hardware, glxinfo will only (ever) say 3.0. We don't >>>> support GL_ARB_compatibility, >>> >>> >>> What features of GL_ARB_compatibility are you missing? Do you plan on >>> supporting GL_ARB_compatibility someday? >> >> >> No. There are several 3.1 features that interact poorly with some >> compatibility features (especially TexBOs and some legacy texture formats). >> We'd have to jump through hoops to make some of these features at all, and >> I'd much rather have the time spent optimizing the features we do support, >> finishing OpenGL ES 3.0, and working on OpenGL 3.2 >> > > I'm just wondering have you actually done a survey of apps that may or > may not require ARB_compatibility? > > Since both major vendor drivers provide this, are you locking mesa out > of some known use cases?
We haven't done any survey. However, given that Apple doesn't expose ARB_compat for their 3.2+ contexts, and given that they're a much bigger market share than we are, it seemed like a reasonable way to save us a ton of work to implement interactions on things that people shouldn't be using.
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