[gegl] document operation-point-render

[Michael Murà <mmure src gnome org>]

commit f985f7ab89eea0deaafb70f13e77a811910ac2ea
Author: Michael Murà <batolettre gmail com>
Date:   Fri Sep 2 12:49:21 2011 +0200

    document operation-point-render

 docs/index-static.txt.in                     |    5 +++++
 gegl/operation/gegl-operation-point-render.h |    6 ++++++
 2 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/docs/index-static.txt.in b/docs/index-static.txt.in
index 9f8956e..56b25a3 100644
--- a/docs/index-static.txt.in
+++ b/docs/index-static.txt.in
@@ -268,6 +268,11 @@ link:gegl-operation-source.h.html[GeglOperationSource]::
     Operations used as render sources or file loaders, the process method
     receives a GeglBuffer to write it's output into
 
+link:gegl-operation-point-render.h.html[GeglOperationPointRender]::
+    The point-render base class is a specialized source operation, where the
+    render is done in small piece to lower the need to do copies. It's dedicated
+    to operation which may be rendered in pieces, like pattern generation.
+
 link:gegl-operation-sink.h.html[GeglOperationSink]::
     An operation that consumes a GeglBuffer, used for filewriters, display (for
     the sdl display node)
diff --git a/gegl/operation/gegl-operation-point-render.h b/gegl/operation/gegl-operation-point-render.h
index 9adafb3..90263d6 100644
--- a/gegl/operation/gegl-operation-point-render.h
+++ b/gegl/operation/gegl-operation-point-render.h
@@ -16,6 +16,12 @@
  * Copyright 2006 Ãyvind KolÃs
  */
 
+/* GeglOperationPointRender
+ * The point-render base class is a specialized source operation, where the render is done
+ * in small piece to lower the need to do copies. It's dedicated to operation which may be
+ * rendered in pieces, like pattern generation.
+ */
+
 #ifndef __GEGL_OPERATION_POINT_RENDER_H__
 #define __GEGL_OPERATION_POINT_RENDER_H__