mesa/vbo: Add draw_id field to struct _mesa_prim

The drivers will need this for passing in gl_DrawIDARB. For indirect
multidraw calls, we get the prim array and prim[i].draw_id == i and is
redundant. But for non-indirect calls, we get one primitive at a time
and need the draw_id field.

Reviewed-by: Anuj Phogat <[email protected]>
Reviewed-by: Ian Romanick <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/mesa/vbo/vbo.h b/src/mesa/vbo/vbo.h
index 00e843c9a0f..cef3b8cd792 100644
--- a/src/mesa/vbo/vbo.h
+++ b/src/mesa/vbo/vbo.h
@@ -58,6 +58,7 @@ struct _mesa_prim {
    GLint basevertex;
    GLuint num_instances;
    GLuint base_instance;
+   GLuint draw_id;
 
    GLsizeiptr indirect_offset;
 };