Mesa (master): gallium/cso: Put the comment about shader in the code for future reference.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: 3dd7b53178cb085a1ff3d87844fa51487f8892fc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=3dd7b53178cb085a1ff3d87844fa51487f8892fc

Author: José Fonseca <jfonseca at vmware.com>
Date:   Wed Feb 22 08:41:19 2012 +0000

gallium/cso: Put the comment about shader in the code for future reference.

---

 src/gallium/auxiliary/cso_cache/cso_context.h |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/src/gallium/auxiliary/cso_cache/cso_context.h b/src/gallium/auxiliary/cso_cache/cso_context.h
index aabf70c..8cc1bbf 100644
--- a/src/gallium/auxiliary/cso_cache/cso_context.h
+++ b/src/gallium/auxiliary/cso_cache/cso_context.h
@@ -185,6 +185,13 @@ cso_restore_clip(struct cso_context *cso);
 
 /* fragment sampler view state */
 
+/*
+ * We don't provide shader caching in CSO.  Most of the time the api provides
+ * object semantics for shaders anyway, and the cases where it doesn't
+ * (eg mesa's internally-generated texenv programs), it will be up to
+ * the state tracker to implement their own specialized caching.
+ */
+
 void
 cso_set_fragment_sampler_views(struct cso_context *cso,
                                uint count,