X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=sidebyside;f=resize_effect.h;h=8fbaba70b08ccfbe5724af7b24068da6b420a75b;hb=f7e302b40026b15d1606269324a31953a1eadb80;hp=c11f4bc9ea6dd9fd4e52241e5e16b8c46b73da21;hpb=2322070a3dbeb6b46b39cca07a0fbf20e95f5468;p=movit

diff --git a/resize_effect.h b/resize_effect.h
index c11f4bc..8fbaba7 100644
--- a/resize_effect.h
+++ b/resize_effect.h
@@ -5,6 +5,8 @@
 // (set by the two integer parameters "width" and "height").
 // Mostly useful as part of other algorithms.
 
+#include <string>
+
 #include "effect.h"
 
 class ResizeEffect : public Effect {
@@ -17,6 +19,7 @@ public:
 	// in case we need to scale down a lot.
 	virtual bool need_texture_bounce() const { return true; }
 	virtual bool needs_mipmaps() const { return true; }
+	virtual AlphaHandling alpha_handling() const { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }
 
 	virtual bool changes_output_size() const { return true; }
 	virtual void get_output_size(unsigned *width, unsigned *height, unsigned *virtual_width, unsigned *virtual_height) const;