From 9ef11f13af7f552dadb4a90c248e525a257e0a2c Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 21 Jan 2016 16:01:14 -0800
Subject: [PATCH] glamor: Clarify when Render fallbacks happen due to an
 unsupported op.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
---
 glamor/glamor_render.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/glamor/glamor_render.c b/glamor/glamor_render.c
index 5712cf841..51718d1c7 100644
--- a/glamor/glamor_render.c
+++ b/glamor/glamor_render.c
@@ -1577,8 +1577,10 @@ glamor_composite(CARD8 op,
     if (!glamor_pixmap_has_fbo(dest_pixmap))
         goto fail;
 
-    if (op >= ARRAY_SIZE(composite_op_info))
+    if (op >= ARRAY_SIZE(composite_op_info)) {
+        glamor_fallback("Unsupported composite op %x\n", op);
         goto fail;
+    }
 
     if (mask && mask->componentAlpha && !glamor_priv->has_dual_blend) {
         if (op == PictOpAtop