commit 36d7c6e7ddb2e941f8611502ca938189290ff4b2
author Zach Reizner <zachr@google.com> Tue Oct 20 10:58:19 2015 -0700
committer Zach Reizner <zachr@google.com> Mon Oct 26 09:38:34 2015 -0700
tree 61f461380b9cb0956607d10610d108fc307ae558
parent aa467a869ce178f7b5869c01049b815792fd54ff

drm_hwcomposer: get gralloc buffer usage during hwc_set

This is needed during the layer composition planning phase to determine if a
layer is protected and therefore needs to be in its own overlay.

BUG=chrome-os-partner:43674

Change-Id: I33510a5a56b57aaaf55732149ae3e3d2f92ada79

hwcomposer.cpp

diff --git a/hwcomposer.cpp b/hwcomposer.cpp
index 7b64bf2..de5c66f 100644
--- a/hwcomposer.cpp
+++ b/hwcomposer.cpp
@@ -318,6 +318,18 @@
   if (ret)
     return ret;
 
+  ret = gralloc->perform(gralloc, GRALLOC_MODULE_PERFORM_GET_USAGE,
+                         handle.get(), &gralloc_buffer_usage);
+  if (ret) {
+    // TODO(zachr): Once GRALLOC_MODULE_PERFORM_GET_USAGE is implemented, remove
+    // "ret = 0" and enable the error logging code.
+    ret = 0;
+#if 0
+    ALOGE("Failed to get usage for buffer %p (%d)", handle.get(), ret);
+    return ret;
+#endif
+  }
+
   return 0;
 }