diff options
| -rw-r--r-- | include/system/window.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/system/window.h b/include/system/window.h index a875427..508ce00 100644 --- a/include/system/window.h +++ b/include/system/window.h @@ -267,7 +267,16 @@ enum { * The default data space for the buffers as set by the consumer. * The values are defined in graphics.h. */ - NATIVE_WINDOW_DEFAULT_DATASPACE = 12 + NATIVE_WINDOW_DEFAULT_DATASPACE = 12, + + /* + * Returns the age of the contents of the most recently dequeued buffer as + * the number of frames that have elapsed since it was last queued. For + * example, if the window is double-buffered, the age of any given buffer in + * steady state will be 2. If the dequeued buffer has never been queued, its + * age will be 0. + */ + NATIVE_WINDOW_BUFFER_AGE = 13, }; /* Valid operations for the (*perform)() hook. |