st/mesa: add layer_offset to PBO fragment shader

This will be used to select a slice of a 3D texture.

v2: fix a comment (Marek)

Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mesa/state_tracker/st_pbo.h b/src/mesa/state_tracker/st_pbo.h
index c17ac17..14ae6ba 100644
--- a/src/mesa/state_tracker/st_pbo.h
+++ b/src/mesa/state_tracker/st_pbo.h
@@ -54,6 +54,7 @@ struct st_pbo_addresses {
       int32_t yoffset;
       int32_t stride;
       int32_t image_size;
+      int32_t layer_offset;
    } constants;
 };