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vaapivideomemory: forbid R/W mappings if non direct-rendering mode.

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Disable read-write mappings if "direct-rendering" is not supported.
Since the ordering of read and write operations is not specified,
this would require to always download the VA surface on _map(), then
commit the temporary VA image back to the VA surface on _unmap().

Some SW decoding plug-in elements still use R/W mappings though.

https://bugzilla.gnome.org/show_bug.cgi?id=733242
This commit is contained in:
Gwenole Beauchesne 2014-07-24 00:14:04 +02:00
parent f2ce28e4b7
commit c3643b42a4
1 changed files with 1 additions and 1 deletions
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2
gst/vaapi/gstvaapivideomemory.c
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@ -160,7 +160,7 @@ gst_video_meta_map_vaapi_memory(GstVideoMeta *meta, guint plane,
goto error_ensure_image;
// Check that we can actually map the surface, or image
if ((flags & GST_MAP_READWRITE) == GST_MAP_WRITE &&
if ((flags & GST_MAP_READWRITE) == GST_MAP_READWRITE &&
!mem->use_direct_rendering)
goto error_unsupported_map;