/usr/include/rawstudio-2.0/rs-1d-function.h is in rawstudio 2.0-1ubuntu1.
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* * Copyright (C) 2006-2011 Anders Brander <anders@brander.dk>,
* * Anders Kvist <akv@lnxbx.dk> and Klaus Post <klauspost@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef RS_1D_FUNCTION_H
#define RS_1D_FUNCTION_H
#include <glib-object.h>
G_BEGIN_DECLS
#define RS_TYPE_1D_FUNCTION rs_1d_function_get_type()
#define RS_1D_FUNCTION(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), RS_TYPE_1D_FUNCTION, RS1dFunction))
#define RS_1D_FUNCTION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), RS_TYPE_1D_FUNCTION, RS1dFunctionClass))
#define RS_IS_1D_FUNCTION(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), RS_TYPE_1D_FUNCTION))
#define RS_IS_1D_FUNCTION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), RS_TYPE_1D_FUNCTION))
#define RS_1D_FUNCTION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), RS_TYPE_1D_FUNCTION, RS1dFunctionClass))
typedef struct {
GObject parent;
} RS1dFunction;
typedef gdouble (RS1dFunctionEvaluate)(const RS1dFunction *func, const gdouble);
typedef gboolean (RS1dFunctionIsIdentity)(const RS1dFunction *func);
typedef struct {
GObjectClass parent_class;
RS1dFunctionIsIdentity *is_identity;
RS1dFunctionEvaluate *evaluate;
RS1dFunctionEvaluate *evaluate_inverse;
} RS1dFunctionClass;
GType rs_1d_function_get_type(void);
/**
* Instantiate a new RS1dFunction, it will behave as an identity function (y = x)
* @return A new RS1dFunction with arefcount of 1.
*/
RS1dFunction *
rs_1d_function_new(void);
/**
* Behaves like #rs_1d_function_new but returns a singleton
* @return A new RS1dFunction singleton which should not be unreffed
*/
const RS1dFunction *
rs_1d_function_new_singleton(void);
/**
* Map x to a new y value
* @param func A RS1dFunction
* @param x An input parameter in the range 0.0-1.0
* @return Mapped value for x
*/
gdouble
rs_1d_function_evaluate(const RS1dFunction *func, gdouble x);
/**
* Map y to a new x value
* @param func A RS1dFunction
* @param x An input parameter in the range 0.0-1.0
* @return Inverse value for y
*/
gdouble
rs_1d_function_evaluate_inverse(const RS1dFunction *func, gdouble y);
/**
* Return TRUE if rs_1d_function_evaluate(#func, x) == x for all x
* @param func A RS1dFunction
* @return TRUE if rs_1d_function_evaluate(#func, x) == x for all x, FALSE otherwise
*/
gboolean
rs_1d_function_is_identity(const RS1dFunction *func);
G_END_DECLS
#endif /* RS_1D_FUNCTION_H */
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