[Mesa-dev] [PATCH 0/9] dri2: Swapbuffer update v3.

[Michel Dänzer]

On 16/08/17 03:31 AM, Thomas Hellstrom wrote:
> Implement back-to-fake-front flips,
> Fix EGL_BUFFER_PRESERVED path.
> Implement dri3 support for GLX_SWAP_EXCHANGE_OML and GLX_SWAP_COPY_OML.
> 
> The back-to-fake-front flips will save a full buffer copy in the case of a
> fake front being enabled and GLX_SWAP_UNDEFINED_OML.
> 
> Support for EGL_BUFFER_PRESERVED and GLX_SWAP_X_OML are mostly useful for
> things like glretrace if traces are capured with applications relying on a
> specific swapbuffer behavior.
> 
> The EGL_BUFFER_PRESERVED path previously made sure the present was done as
> a copy, but there was nothing making sure that after the present,
> the same back buffer was chosen.
> This has now been changed so that if the previous back buffer is
> idle, we reuse it. Otherwise we grab a new and copy the contents and
> buffer age from the previous back buffer. Server side flips are allowed.
> 
> GLX_SWAP_COPY_OML will behave like EGL_BUFFER_PRESERVED.
> 
> GLX_SWAP_EXCHANGE_OML will behave similarly, except that we try to reuse the
> previous fake front as the new back buffer if it's idle. If not, we grab
> a new back buffer and copy the contents and buffer age from the old fake front.
> 
> v2:
> - Split the original patch,
> - Make sure we have a context for blitImage even if we don't have a
> current context.
> - Make sure the delayed backbuffer allocation is performed before
> glXSwapBuffers, glXCopyBuffers and querying buffer age.
> v3:
> - squash three patches related to the same change.
> - Address review comments by Michel Dänzer.

The series is

Reviewed-by: Michel Dänzer <michel.daenzer at amd.com>


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer