1 files changed, 19 insertions, 0 deletions
diff --git a/third_party/jpeg-xl/lib/extras/alpha_blend.h b/third_party/jpeg-xl/lib/extras/alpha_blend.h
new file mode 100644
index 0000000000..4d78e8681b
--- /dev/null
+++ b/third_party/jpeg-xl/lib/extras/alpha_blend.h
@@ -0,0 +1,19 @@
+// Copyright (c) the JPEG XL Project Authors. All rights reserved.
+//
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#ifndef LIB_EXTRAS_ALPHA_BLEND_H_
+#define LIB_EXTRAS_ALPHA_BLEND_H_
+
+#include "lib/extras/packed_image.h"
+
+namespace jxl {
+namespace extras {
+
+void AlphaBlend(PackedPixelFile* ppf, float background[3]);
+
+}  // namespace extras
+}  // namespace jxl
+
+#endif  // LIB_EXTRAS_ALPHA_BLEND_H_