sna/blt: Avoid clobbering the composite state if we fail to setup the BLT

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 7 insertions, 0 deletions

diff --git a/src/sna/sna_render_inline.h b/src/sna/sna_render_inline.h
index 2805a017..6c8f66ab 100644
--- a/src/sna/sna_render_inline.h
+++ b/src/sna/sna_render_inline.h
@@ -89,6 +89,13 @@ is_cpu(DrawablePtr drawable)
 }
 
 static inline Bool
+is_dirty(DrawablePtr drawable)
+{
+	struct sna_pixmap *priv = sna_pixmap_from_drawable(drawable);
+	return priv == NULL || kgem_bo_is_dirty(priv->gpu_bo);
+}
+
+static inline Bool
 too_small(DrawablePtr drawable)
 {
 	struct sna_pixmap *priv = sna_pixmap_from_drawable(drawable);