st/mesa: Invalidate the gallium array atom only if needed.

Now that the buffer object usage history tracks if it is
being used as vertex buffer object, we can restrict setting
the ST_NEW_VERTEX_ARRAYS bit to dirty on glBufferData calls to
buffers that are potentially used as vertex buffer object.
Also put a note that the same could be done for index arrays
used in indexed draws.

Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Mathias Fröhlich <Mathias.Froehlich@web.de>

diff --git a/src/mesa/state_tracker/st_cb_bufferobjects.c b/src/mesa/state_tracker/st_cb_bufferobjects.c
index 5ebe94f4545549d130805d0389001320b416ccc5..b05f2516980348d831b092bd4f66184ed0d1ea3a 100644 (file)
--- a/src/mesa/state_tracker/st_cb_bufferobjects.c
+++ b/src/mesa/state_tracker/st_cb_bufferobjects.c
@@ -357,8 +357,10 @@ bufferobj_data(struct gl_context *ctx,
    /* The current buffer may be bound, so we have to revalidate all atoms that
     * might be using it.
     */
-   /* TODO: Add arrays to usage history */
-   ctx->NewDriverState |= ST_NEW_VERTEX_ARRAYS;
+   if (st_obj->Base.UsageHistory & USAGE_ARRAY_BUFFER)
+      ctx->NewDriverState |= ST_NEW_VERTEX_ARRAYS;
+   /* if (st_obj->Base.UsageHistory & USAGE_ELEMENT_ARRAY_BUFFER) */
+   /*    ctx->NewDriverState |= TODO: Handle indices as gallium state; */
    if (st_obj->Base.UsageHistory & USAGE_UNIFORM_BUFFER)
       ctx->NewDriverState |= ST_NEW_UNIFORM_BUFFER;
    if (st_obj->Base.UsageHistory & USAGE_SHADER_STORAGE_BUFFER)