st/dri: don't expose modifiers in EGL if the driver doesn't implement them

This unbreaks waffle/gbm (piglit/gbm) which fails initialization.

v2: also don't set queryDmaBufFormats

Reviewed-by: Daniel Stone <daniel@fooishbar.org>

diff --git a/src/gallium/state_trackers/dri/dri2.c b/src/gallium/state_trackers/dri/dri2.c
index 1e8bb48..8672174 100644 (file)
--- a/src/gallium/state_trackers/dri/dri2.c
+++ b/src/gallium/state_trackers/dri/dri2.c
@@ -1996,9 +1996,11 @@ dri2_init_screen(__DRIscreen * sPriv)
          dri2ImageExtension.createImageFromFds = dri2_from_fds;
          dri2ImageExtension.createImageFromDmaBufs = dri2_from_dma_bufs;
          dri2ImageExtension.createImageFromDmaBufs2 = dri2_from_dma_bufs2;
-         dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
-         dri2ImageExtension.queryDmaBufModifiers =
-                                    dri2_query_dma_buf_modifiers;
+         if (pscreen->query_dmabuf_modifiers) {
+            dri2ImageExtension.queryDmaBufFormats = dri2_query_dma_buf_formats;
+            dri2ImageExtension.queryDmaBufModifiers =
+                                       dri2_query_dma_buf_modifiers;
+         }
       }
    }