+++ /dev/null
-#ifndef MSP_GL_COLORCURVE_H_
-#define MSP_GL_COLORCURVE_H_
-
-#include "postprocessor.h"
-#include "program.h"
-#include "programdata.h"
-#include "texture1d.h"
-#include "texturing.h"
-
-namespace Msp {
-namespace GL {
-
-/**
-Processes oversaturated colors to preserve hues. When one color component
-exceeds 1.0, the overflow is distributed to the other components, scaling the
-color towards white.
-
-Gamma or sRGB correction can also be applied to the output. It can be used to
-improve color reproduction by performing lighting calculations in linear color
-space and converting to sRGB for display.
-*/
-class ColorCurve: public PostProcessor
-{
-public:
- struct Template: public PostProcessor::Template
- {
- class Loader: public DataFile::DerivedObjectLoader<Template, PostProcessor::Template::Loader>
- {
- public:
- Loader(Template &);
-
- private:
- void gamma(float);
- void srgb();
- };
-
- float exposure_adjust;
- float brightness_response;
- float gamma;
- bool srgb;
-
- Template();
-
- virtual ColorCurve *create(unsigned, unsigned) const;
- };
-
-private:
- Program shprog;
- ProgramData shdata;
- Texture1D curve;
- Texturing texturing;
- RefPtr<Mesh> quad;
- RefPtr<Sampler> linear_sampler;
- RefPtr<Sampler> nearest_sampler;
-
-public:
- ColorCurve();
-
- /** Set exposure adjustment in EV units. Positive values brighten the
- image, negative values darken it. Zero is neutral. */
- void set_exposure_adjust(float);
-
- /** Sets the exponent of the */
- void set_brightness_response(float);
-
- /** Sets the gamma value used for mapping output colors. Allowed range is
- from 0.1 to 10. */
- void set_gamma(float);
-
- /** Sets output mapping to sRGB. This is almost, but not exactly equivalent
- to set_gamma(2.2). */
- void set_srgb();
-
- /// Sets output mapping to linear. This is equivalent to set_gamma(1).
- void set_linear();
-
- virtual void render(Renderer &, const Texture2D &, const Texture2D &);
-};
-
-} // namespace GL
-} // namespace Msp
-
-#endif