From 06b6f027c011290b7759dc18c586c84e83ca8fee Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Wed, 24 May 2017 00:24:24 +0100
Subject: Better error message.

---
 src/lib/image.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/lib/image.cc b/src/lib/image.cc
index 8718223ae..d1f1fb9d1 100644
--- a/src/lib/image.cc
+++ b/src/lib/image.cc
@@ -542,7 +542,7 @@ Image::alpha_blend (shared_ptr<const Image> other, Position<int> position)
 		break;
 	}
 	default:
-		DCPOMATIC_ASSERT (false);
+		throw PixelFormatError ("alpha_blend()", _pixel_format);
 	}
 }
 
-- 
cgit v1.2.3