Mesa (master): i965: Fix stale comments about the state cache.

[Kenneth Graunke]

Module: Mesa
Branch: master
Commit: a6af5602afc595b57672ae9a2020dcd4ef1319ff
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a6af5602afc595b57672ae9a2020dcd4ef1319ff

Author: Eric Anholt <eric at anholt.net>
Date:   Sun May 18 20:48:16 2014 -0700

i965: Fix stale comments about the state cache.

This changed in the state streaming work years ago.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/mesa/drivers/dri/i965/brw_cc.c      |    2 +-
 src/mesa/drivers/dri/i965/brw_context.h |    9 ++++++++-
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_cc.c b/src/mesa/drivers/dri/i965/brw_cc.c
index 2f4062b..289f65b 100644
--- a/src/mesa/drivers/dri/i965/brw_cc.c
+++ b/src/mesa/drivers/dri/i965/brw_cc.c
@@ -97,7 +97,7 @@ brw_fix_xRGB_alpha(GLenum function)
 }
 
 /**
- * Creates the state cache entry for the given CC unit key.
+ * Creates a CC unit packet from the current blend state.
  */
 static void upload_cc_unit(struct brw_context *brw)
 {
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index bc272c5..f13d99c 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -230,7 +230,14 @@ struct brw_state_flags {
     * State update flags signalled as the result of brw_tracked_state updates
     */
    GLuint brw;
-   /** State update flags signalled by brw_state_cache.c searches */
+   /**
+    * State update flags that used to be signalled by brw_state_cache.c
+    * searches.
+    *
+    * Now almost all of that state is just streamed out on demand, but the
+    * flags for those state blobs updating have stayed in the same bitfield.
+    * brw_state_cache.c still flags CACHE_NEW_*_PROG.
+    */
    GLuint cache;
 };