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stable/presentation-time: rephrase request intro

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Attempting to clarify the paragraph. The key points are that feedback is
double-buffered, part of a commit as all double-buffered state is, and
it defines the term "content update" used later.

The new phrasing defines not only a content update, but also content
submission which is used further on in the spec. It implies the
double-buffered state semantics without actually using the term (it's
not really state to be applied), and makes a link with the very next
paragraph describing the prensentation time.

Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
This commit is contained in:
Pekka Paalanen 2016-02-24 10:40:33 +02:00
parent 79a4172976
commit a8d7dce4e6
1 changed files with 4 additions and 5 deletions
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9
stable/presentation-time/presentation-time.xml
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@ -36,11 +36,10 @@
presentation clock, which is defined in the
presentation.clock_id event.
Request 'feedback' can be regarded as an additional wl_surface
method. It is part of the double-buffered surface state update
mechanism, where other requests first set up the state and then
wl_surface.commit atomically applies the state into use. In
other words, wl_surface.commit submits a content update.
A content update for a wl_surface is submitted by a
wl_surface.commit request. Request 'feedback' associates with
the wl_surface.commit and provides feedback on the content
update, particularly the final realized presentation time.
<!-- Completing presentation -->