Add a new alpha handling method, INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK.

[movit] / resize_effect.h

diff --git a/resize_effect.h b/resize_effect.h
index c11f4bc9ea6dd9fd4e52241e5e16b8c46b73da21..3cb40e3344d7703180e90e8d2352a73df876e87a 100644 (file)
--- a/resize_effect.h
+++ b/resize_effect.h
@@ -17,6 +17,7 @@ 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;