-#ifndef _COLORSPACE_CONVERSION_EFFECT_H
-#define _COLORSPACE_CONVERSION_EFFECT_H 1
+#ifndef _MOVIT_COLORSPACE_CONVERSION_EFFECT_H
+#define _MOVIT_COLORSPACE_CONVERSION_EFFECT_H 1
// An effect to convert between different color spaces.
// Can convert freely between sRGB/Rec. 709 and the two different Rec. 601
// We don't do any fancy gamut mapping or similar; colors that are out-of-gamut
// will simply stay out-of-gamut, and probably clip in the output stage.
+#include <Eigen/Core>
+#include <string>
+
#include "effect.h"
-#include "effect_chain.h"
+#include "image_format.h"
+
+namespace movit {
class ColorspaceConversionEffect : public Effect {
-public:
+private:
+ // Should not be instantiated by end users.
ColorspaceConversionEffect();
- virtual std::string effect_type_id() const { return "ColorspaceConversionEffect"; }
- std::string output_fragment_shader();
+ friend class EffectChain;
- virtual bool needs_srgb_primaries() const { return false; }
- virtual AlphaHandling alpha_handling() const { return DONT_CARE_ALPHA_TYPE; }
+public:
+ std::string effect_type_id() const override { return "ColorspaceConversionEffect"; }
+ std::string output_fragment_shader() override;
+
+ bool needs_srgb_primaries() const override { return false; }
+ AlphaHandling alpha_handling() const override { return DONT_CARE_ALPHA_TYPE; }
+ bool strong_one_to_one_sampling() const override { return true; }
+
+ // Get a conversion matrix from the given color space to XYZ.
+ static Eigen::Matrix3d get_xyz_matrix(Colorspace space);
private:
Colorspace source_space, destination_space;
};
-#endif // !defined(_COLORSPACE_CONVERSION_EFFECT_H)
+} // namespace movit
+
+#endif // !defined(_MOVIT_COLORSPACE_CONVERSION_EFFECT_H)