/usr/include/movit/mix_effect.h is in libmovit-dev 1.4.0-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | #ifndef _MOVIT_MIX_EFFECT_H
#define _MOVIT_MIX_EFFECT_H 1
// Combine two images: a*x + b*y. If you set a within [0,1] and b=1-a,
// you will get a fade; if not, you may get surprising results (consider alpha).
#include <string>
#include "effect.h"
namespace movit {
class MixEffect : public Effect {
public:
MixEffect();
virtual std::string effect_type_id() const { return "MixEffect"; }
std::string output_fragment_shader();
virtual bool needs_srgb_primaries() const { return false; }
virtual unsigned num_inputs() const { return 2; }
virtual bool one_to_one_sampling() const { return true; }
// TODO: In the common case where a+b=1, it would be useful to be able to set
// alpha_handling() to INPUT_PREMULTIPLIED_ALPHA_KEEP_BLANK. However, right now
// we have no way of knowing that at instantiation time.
private:
float strength_first, strength_second;
};
} // namespace movit
#endif // !defined(_MOVIT_MIX_EFFECT_H)
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