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doc: Remove Shared Object Cache section

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We don't support anything like that yet.

Signed-off-by: Tiago Vignatti <tiago.vignatti@intel.com>
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Tiago Vignatti 2012-10-08 18:39:59 +03:00 • committed by Kristian Høgsberg
parent 7fe381861b
commit b5af60a57b
1 changed files with 0 additions and 55 deletions
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55
doc/Wayland/en_US/Protocol.xml
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@ -341,61 +341,6 @@
</listitem> </listitem>
</itemizedlist> </itemizedlist>
</section> </section>
<section id="sect-Protocol-Shared-Object-Cache">
<title>Shared Object Cache</title>
<para>
Cache for sharing glyphs, icons, cursors across clients. Lets clients
share identical objects. The cache is a global object, advertised at
connect time.
<programlisting>
Interface: cache
Requests: upload(key, visual, bo, stride, width, height)
Events: item(key, bo, x, y, stride)
retire(bo)
</programlisting>
</para>
<para>
<itemizedlist>
<listitem>
<para>
Upload by passing a visual, bo, stride, width, height to the
cache.
</para>
</listitem>
<listitem>
<para>
Upload returns a bo name, stride, and x, y location of object in
the buffer. Clients take a reference on the atlas bo.
</para>
</listitem>
<listitem>
<para>
Shared objects are refcounted, freed by client (when purging
glyphs from the local cache) or when a client exits.
</para>
</listitem>
<listitem>
<para>
Server can't delete individual items from an atlas, but it can
throw out an entire atlas bo if it becomes too sparse. The server
sends out an <type>retire</type> event when this happens, and clients
must throw away any objects from that bo and reupload. Between the
server dropping the atlas and the client receiving the retire event,
clients can still legally use the old atlas since they have a ref on
the bo.
</para>
</listitem>
<listitem>
<para>
cairo needs to hook into the glyph cache, and maybe also a way
to create a read-only surface based on an object form the cache
(icons).
<function>cairo_wayland_create_cached_surface(surface-data)</function>
</para>
</listitem>
</itemizedlist>
</para>
</section>
<section id="sect-Protocol-Drag-and-Drop"> <section id="sect-Protocol-Drag-and-Drop">
<title>Drag and Drop</title> <title>Drag and Drop</title>
<para> <para>