On Tue, Apr 7, 2015 at 6:46 PM, Frank Henigman <fjhenig...@google.com> wrote:
> The name "surfaceless" suits me.
>
> Does this platform need to provide a hint to the user about buffer format?
> Platform drm does this via the EGL_NATIVE_VISUAL_ID query of
> eglGetConfigAttrib(), returning a gbm format value.  Unless we do the
> same or similar here, how does the user robustly find the right format
> for allocating buffers?

GBM provides

int gbm_device_is_format_supported(struct gbm_device *gbm, uint32_t
format, uint32_t usage);

and you can use that to find a format that works with GBM_BO_USE_RENDERING.

Kristian


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