[gegl] docs: add information about opencl

[Ãyvind KolÃs <ok src gnome org>]

commit 0f519e3d6701718166433df852fd1bcb557cab15
Author: Ãyvind KolÃs <pippin gimp org>
Date:   Mon Apr 2 22:55:50 2012 +0100

    docs: add information about opencl

 docs/index-static.txt.in |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)
---
diff --git a/docs/index-static.txt.in b/docs/index-static.txt.in
index e27cf93..4d0075e 100644
--- a/docs/index-static.txt.in
+++ b/docs/index-static.txt.in
@@ -27,6 +27,8 @@ Features
      * Iterative chunk-wise processing.
      * Processes subregions and dependencies.
      * Subgraph caches to aid performance of non-destructive editing.
+     * Experimental OpenCL acceleration, with possibility of hybrid cpu/gpu
+       processing. 
   - link:api.html#GeglBuffer[GeglBuffer]
      * Storage of all babl supported formats.
      * Tiled sparse buffers (larger than RAM images).
@@ -345,7 +347,8 @@ GEGL_DEBUG_RECTS::
     Show the results of have/need rect negotiations.
 GEGL_DEBUG_TIME::
     Print a performance instrumentation breakdown of GEGL and it's operations.
-
+GEGL_USE_OPENCL:
+    Enable use of OpenCL processing.
 
 gegl
 ~~~~