diff options
Diffstat (limited to 'src/mesa/pipe/p_winsys.h')
| -rw-r--r-- | src/mesa/pipe/p_winsys.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/mesa/pipe/p_winsys.h b/src/mesa/pipe/p_winsys.h index 2d4432dbca..298b555651 100644 --- a/src/mesa/pipe/p_winsys.h +++ b/src/mesa/pipe/p_winsys.h @@ -116,10 +116,17 @@ struct pipe_winsys struct pipe_buffer_handle **ptr, struct pipe_buffer_handle *buf ); - /** Create the data store of a buffer and optionally initialize it */ + /** + * Create the data store of a buffer and optionally initialize it. + * + * usage is a bitmask of PIPE_BUFFER_USAGE_PIXEL/VERTEX/INDEX/CONSTANT. This + * usage argument is only an optimization hint, not a guarantee, therefore + * proper behavior must be observed in all circumstances. + */ void (*buffer_data)(struct pipe_winsys *sws, struct pipe_buffer_handle *buf, - unsigned size, const void *data ); + unsigned size, const void *data, + unsigned usage); /** Modify some or all of the data contained in a buffer's data store */ void (*buffer_subdata)(struct pipe_winsys *sws, |