third_party: Switch to zcr prefix for downstream wayland interfaces.

third_party/wayland-protocols/unstable/alpha-compositing/alpha-compositing-unstable-v1.xml

Index: third_party/wayland-protocols/unstable/alpha-compositing/alpha-compositing-unstable-v1.xml
diff --git a/third_party/wayland-protocols/unstable/alpha-compositing/alpha-compositing-unstable-v1.xml b/third_party/wayland-protocols/unstable/alpha-compositing/alpha-compositing-unstable-v1.xml
index 4580c695651e456bdd108e402a5312fede3ca36b..9f86fc72baa7c22c9a541859ee9de437bfcd2292 100644
--- a/third_party/wayland-protocols/unstable/alpha-compositing/alpha-compositing-unstable-v1.xml
+++ b/third_party/wayland-protocols/unstable/alpha-compositing/alpha-compositing-unstable-v1.xml
@@ -38,7 +38,7 @@
     reset.
   </description>
 
-  <interface name="zwp_alpha_compositing_v1" version="1">
+  <interface name="zcr_alpha_compositing_v1" version="1">
     <description summary="alpha_compositing">
       The global interface exposing compositing and blending capabilities is
       used to instantiate an interface extension for a wl_surface object.
@@ -67,6 +67,96 @@
 	is raised.
       </description>
 
+      <arg name="id" type="new_id" interface="zcr_blending_v1"
+	   summary="the new blending interface id"/>
+      <arg name="surface" type="object" interface="wl_surface"
+	   summary="the surface"/>
+    </request>
+  </interface>
+
+  <interface name="zcr_blending_v1" version="1">
+    <description summary="blending interface to a wl_surface">
+      An additional interface to a wl_surface object, which allows the
+      client to specify the blending equation used for compositing and
+      an alpha value applied to the whole surface.
+
+      If the wl_surface associated with the bledning object is destroyed,
+      the blending object becomes inert.
+
+      If the blending object is destroyed, the blending state is removed
+      from the wl_surface. The change will be applied on the next
+      wl_surface.commit.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="remove blending from the surface">
+	The associated wl_surface's blending state is removed.
+	The change is applied on the next wl_surface.commit.
+      </description>
+    </request>
+
+    <enum name="blending_equation">
+      <description summary="different blending equations for compositing">
+	Blending equations that can be used when compositing a surface.
+      </description>
+      <entry name="none" value="0" summary="no blending"/>
+      <entry name="premult" value="1" summary="one / one_minus_src_alpha"/>
+      <entry name="coverage" value="2" summary="src_alpha / one_minus_src_alpha" />
+    </enum>
+
+    <request name="set_blending">
+      <description summary="set the blending equation">
+	Set the blending equation for compositing the wl_surface.
+	See wp_alpha_compositing for the description.
+
+	The blending equation state is double-buffered state,
+	and will be applied on the next wl_surface.commit.
+      </description>
+      <arg name="equation" type="uint" summary="the new blending equation"/>
+    </request>
+
+    <request name="set_alpha">
+      <description summary="set the alpha value">
+	Set the alpha value applied to the whole surface for compositing.
+	See wp_alpha_compositing for the description.
+
+	The alpha value state is double-buffered state,
+	and will be applied on the next wl_surface.commit.
+      </description>
+      <arg name="value" type="fixed" summary="the new alpha value"/>
+    </request>
+
+  </interface>
+
+  <interface name="zwp_alpha_compositing_v1" version="1">
+    <description summary="DEPRECATED">
+      The global interface exposing compositing and blending capabilities is
+      used to instantiate an interface extension for a wl_surface object.
+      This extended interface will then allow the client to specify the
+      blending equation and alpha value used for compositing the wl_surface.
+    </description>
+
+    <request name="destroy" type="destructor">
+      <description summary="unbind from the blending interface">
+	Informs the server that the client will not be using this
+	protocol object anymore. This does not affect any other objects,
+	blending objects included.
+      </description>
+    </request>
+
+    <enum name="error">
+      <entry name="blending_exists" value="0"
+	     summary="the surface already has a blending object associated"/>
+    </enum>
+
+    <request name="get_blending">
+      <description summary="extend surface interface for blending">
+	Instantiate an interface extension for the given wl_surface to
+	provide surface blending. If the given wl_surface already has
+	a blending object associated, the blending_exists protocol error
+	is raised.
+      </description>
+
       <arg name="id" type="new_id" interface="zwp_blending_v1"
 	   summary="the new blending interface id"/>
       <arg name="surface" type="object" interface="wl_surface"
@@ -75,7 +165,7 @@
   </interface>
 
   <interface name="zwp_blending_v1" version="1">
-    <description summary="blending interface to a wl_surface">
+    <description summary="DEPRECATED">
       An additional interface to a wl_surface object, which allows the
       client to specify the blending equation used for compositing and
       an alpha value applied to the whole surface.