gallium/winsys/drm: introduce modifier field to winsys_handle

we use this to import resources with format modifiers, and to support
per-resource modifier queries.

Signed-off-by: Varad Gautam <[email protected]>
Cc: Lucas Stach <[email protected]>
Reviewed-by: Lucas Stach <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/gallium/include/state_tracker/drm_driver.h b/src/gallium/include/state_tracker/drm_driver.h
index c80fb09dbc4..88dda0a9977 100644
--- a/src/gallium/include/state_tracker/drm_driver.h
+++ b/src/gallium/include/state_tracker/drm_driver.h
@@ -45,6 +45,12 @@ struct winsys_handle
     * Output for texture_get_handle.
     */
    unsigned offset;
+
+   /**
+    * Input to resource_from_handle.
+    * Output from resource_get_handle.
+    */
+   uint64_t modifier;
 };