[Mesa-dev] [PATCH 2/4] st/dri2: Add shared flag to missing locations

[Erik Faye-Lund]

On Wed, Oct 21, 2015 at 10:34 PM, Marek Olšák <maraeo at gmail.com> wrote:
> On Wed, Oct 21, 2015 at 12:28 PM, Axel Davy <axel.davy at ens.fr> wrote:
>> The PIPE_BIND_SHARED flag should be added whenever
>> the resource may be shared with another process.
>>
>> In particular if the resource is imported, or may
>> be exported, the flag should be used.
>
> This can't be enforced. EGL_MESA_image_dma_buf_export allows exporting
> any texture. Mesa can't know in advance if a texture will be exported.

Could we not, at least in theory, crate a new texture and blit the old
one into it behind the scenes somehow when a texture gets exported?