[Libva] drm_intel_bo_alloc_for_render + dri_bo_map can help me read back the decoded data?

[hank peng]

Hi, all:
I noticed that the dri_bo of a object surface is allocated using
drm_intel_bo_alloc_tiled function which returned USWC buffer, can I
use drm_intel_bo_alloc_for_render instead and then dri_bo_map to get
real decoded data back?



-- 
The simplest is not all best but the best is surely the simplest!