swrastg: Add __DRI_TEX_BUFFER support

Without this, EXT_texture_from_pixmap is trivially broken.  With it,
it's merely subtly broken.

Signed-off-by: Adam Jackson <ajax@redhat.com>

diff --git a/src/gallium/state_trackers/dri/sw/drisw.c b/src/gallium/state_trackers/dri/sw/drisw.c
index 30088b0..0efa5ff 100644 (file)
--- a/src/gallium/state_trackers/dri/sw/drisw.c
+++ b/src/gallium/state_trackers/dri/sw/drisw.c
@@ -233,6 +233,7 @@ drisw_allocate_textures(struct dri_drawable *drawable,
  */
 
 static const __DRIextension *drisw_screen_extensions[] = {
+   &driTexBufferExtension.base,
    NULL
 };