[Intel-gfx] [PATCH 2/2] dri: Add support for DRI2BufferStencil and DRI2BufferHiz

[Chad Versace]

On Sun, 05 Jun 2011 10:10:39 -0700, Eric Anholt <eric at anholt.net> wrote:
> On Sat,  4 Jun 2011 17:06:31 -0700, Chad Versace <chad at chad-versace.us> wrote:
> > Before this commit, if a client were to request a stencil or hiz buffer, then
> > I830DRI2CreateBuffer() allocated and returned an X-tiled buffer by
> > accident. (DRI2BufferStencil and DRI2BufferHiz were unintentionally caught
> > by the default case of a switch statement.)
> > 
> > Now, I830DRI2CreateBuffer() correctly returns a Y-tiled buffer and handles
> > the stencil buffer as a special case due its quirky pitch requirements.
> > 
> > This shouldn't break older Mesa versions, because they never query (via
> > DRI2GetBuffersWithFormat) for the drawable's DRI2BufferStencil.
> > 
> > Signed-off-by: Chad Versace <chad at chad-versace.us>
> 
> This should make configure.ac depend on the bumped version of
> dri2proto.h, so people get an explanation instead of just build failure.
> 
> Also, I'm surprised to see you didn't fix the "we'll allocate a buffer
> for *anything*" behavior that made the compat path in Mesa strange this
> time around.

Eric, I've fixed the patch series according to your comments and resubmitted.

I don't know why I didn't fix the "we'll allocate anything you ask for"
problem; guess I was just too busy digging in other things.