gldownload: DMA_DRM support missing, causing roundtrip to system ram
While glupload
supports the DMA_DRM
/drm-format
API already, this is not yet the case for gldownload
. That is unfortunate in a couple of scenarios, such as in combination with va*
elements (especially encoders) where this may cause a fallback to system memory instead of handing over a DMABuf handle.
This is somewhat a dupe of #2860, however that predates the DMA_DRM
API.