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#ifndef _MOVIT_RESIZE_EFFECT_H
#define _MOVIT_RESIZE_EFFECT_H 1
// An effect that simply resizes the picture to a given output size
// (set by the two integer parameters "width" and "height").
// Mostly useful as part of other algorithms.
#include <string>
#include "effect.h"
namespace movit {
class ResizeEffect : public Effect {
public:
ResizeEffect();
std::string effect_type_id() const override { return "ResizeEffect"; }
std::string output_fragment_shader() override;
// We want processing done pre-filtering and mipmapped,
// in case we need to scale down a lot.
bool needs_texture_bounce() const override { return true; }
MipmapRequirements needs_mipmaps() const override { return NEEDS_MIPMAPS; }
AlphaHandling alpha_handling() const override { return INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK; }
bool changes_output_size() const override { return true; }
bool sets_virtual_output_size() const override { return false; }
void get_output_size(unsigned *width, unsigned *height, unsigned *virtual_width, unsigned *virtual_height) const override;
private:
int width, height;
};
} // namespace movit
#endif // !defined(_MOVIT_RESIZE_EFFECT_H)
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