am cdd44a0d: added a new hint to tell SF it should clear the FB for some layers
Merge commit 'cdd44a0db36749af5036e903e4867b279ef420df' into gingerbread-plus-aosp
* commit 'cdd44a0db36749af5036e903e4867b279ef420df':
added a new hint to tell SF it should clear the FB for some layers
diff --git a/include/hardware/hwcomposer.h b/include/hardware/hwcomposer.h
index 9d6a760..b790fe8 100644
--- a/include/hardware/hwcomposer.h
+++ b/include/hardware/hwcomposer.h
@@ -48,13 +48,21 @@
*/
enum {
/*
- * HWC can set the HWC_TRIPLE_BUFFER hint to indicate to SurfaceFlinger
+ * HWC can set the HWC_HINT_TRIPLE_BUFFER hint to indicate to SurfaceFlinger
* that it should triple buffer this layer. Typically HWC does this when
* the layer will be unavailable for use for an extended period of time,
* e.g. if the display will be fetching data directly from the layer and
* the layer can not be modified until after the next set().
*/
- HWC_TRIPLE_BUFFER_HINT = 0x00000001,
+ HWC_HINT_TRIPLE_BUFFER = 0x00000001,
+
+ /*
+ * HWC sets HWC_HINT_CLEAR_FB to tell SurfaceFlinger that it should clear the
+ * framebuffer with transparent pixels where this layer would be.
+ * SurfaceFlinger will only honor this flag when the layer has no blending
+ *
+ */
+ HWC_HINT_CLEAR_FB = 0x00000002
};
/*