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Use a callback object instead of ad-hoc lists for sync and frame events

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So obvious in retrospect.  The object system can do all the work for us
and keep track of pending calls as regular objects and we don't need to
abuse the resource system to get them cleaned up on client exit.  We
don't need the custom key management or (broken) lookup, we just sue
object IDs.  And last but not least, anybody can receive the callback,
not just display listeners.
This commit is contained in:
Kristian Høgsberg 2011-07-29 19:51:22 -07:00
parent 1648109c84
commit 0af17ed98c
4 changed files with 42 additions and 175 deletions
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31
protocol/wayland.xml
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@ -42,16 +42,7 @@
The key argument can be used to correlate between multiple
sync invocations. -->
<request name="sync">
<arg name="key" type="uint"/>
</request>
<!-- Request notification when the next frame is displayed.
Useful for throttling redrawing operations, and driving
animations. The notification will only be posted for one
frame unless requested again. -->
<request name="frame">
<arg name="surface" type="object" interface="wl_surface"/>
<arg name="key" type="uint"/>
<arg name="callback" type="new_id" interface="wl_callback"/>
</request>
<!-- A fatal error has occurred. -->
@ -92,19 +83,14 @@
<event name="range">
<arg name="base" type="uint"/>
</event>
</interface>
<!-- A reply to the frame or sync request. The key is the one
used in the request. time is in millisecond units, and
denotes the time when the frame was posted on the
display. time can be used to estimate frame rate, determine
how much to advance animations and compensate for jitter. -->
<event name="key">
<arg name="key" type="uint"/>
<interface name="wl_callback" version="1">
<event name="done">
<arg name="time" type="uint"/>
</event>
</interface>
<!-- A compositor. This object is a global. The compositor is in
charge of combining the contents of multiple surfaces into one
displayable output. -->
@ -423,6 +409,15 @@
<arg name="width" type="int"/>
<arg name="height" type="int"/>
</request>
<!-- Request notification when the next frame is displayed.
Useful for throttling redrawing operations, and driving
animations. The notification will only be posted for one
frame unless requested again. -->
<request name="frame">
<arg name="callback" type="new_id" interface="wl_callback"/>
</request>
</interface>