The actual protection status for a given weston_head depends upon the corresponding drm_head's connector HDCP properties. On the other hand, the actual protection for a weston_output is the minimum of the protection status of its attached heads. As a head's protection changes, the current protection of the output to which the head is attached is recomputed. This patch adds the support to keep track of the current content-protection for heads and the outputs. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>dev
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