1 #ifndef _RESIZE_EFFECT_H
2 #define _RESIZE_EFFECT_H 1
4 // An effect that simply resizes the picture to a given output size
5 // (set by the two integer parameters "width" and "height").
6 // Mostly useful as part of other algorithms.
10 class ResizeEffect : public Effect {
13 virtual std::string effect_type_id() const { return "ResizeEffect"; }
14 std::string output_fragment_shader();
16 // We want processing done pre-filtering and mipmapped,
17 // in case we need to scale down a lot.
18 virtual bool need_texture_bounce() const { return true; }
19 virtual bool needs_mipmaps() const { return true; }
21 virtual bool changes_output_size() const { return true; }
22 virtual void get_output_size(unsigned *width, unsigned *height) const;
28 #endif // !defined(_RESIZE_EFFECT_H)