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/* base class for all colour operations
*/
/*
Copyright (C) 1991-2005 The National Gallery
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
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifndef VIPS_PCOLOUR_H
#define VIPS_PCOLOUR_H
#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/
#include <vips/vips.h>
#define VIPS_TYPE_COLOUR (vips_colour_get_type())
#define VIPS_COLOUR( obj ) \
(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
VIPS_TYPE_COLOUR, VipsColour ))
#define VIPS_COLOUR_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_CAST( (klass), \
VIPS_TYPE_COLOUR, VipsColourClass))
#define VIPS_IS_COLOUR( obj ) \
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR ))
#define VIPS_IS_COLOUR_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR ))
#define VIPS_COLOUR_GET_CLASS( obj ) \
(G_TYPE_INSTANCE_GET_CLASS( (obj), \
VIPS_TYPE_COLOUR, VipsColourClass ))
struct _VipsColour;
typedef void (*VipsColourProcessFn)( struct _VipsColour *colour,
VipsPel *out, VipsPel **in, int width );
typedef struct _VipsColour {
VipsOperation parent_instance;
/* Null-terminated array of input arguments, set these from a
* subclass.
*/
VipsImage **in;
int n;
/* If this is >0, only process this many bands from the input. Extra
* bands are removed and reattached after processing.
*/
int input_bands;
VipsImage *out;
/* Set fields on ->out from these.
*/
VipsCoding coding;
VipsInterpretation interpretation;
VipsBandFormat format;
int bands;
/* Attach this profile, if set.
*/
char *profile_filename;
} VipsColour;
typedef struct _VipsColourClass {
VipsOperationClass parent_class;
/* The buffer processor.
*/
VipsColourProcessFn process_line;
} VipsColourClass;
GType vips_colour_get_type( void );
/* A float in, float out colourspace transformation.
*/
#define VIPS_TYPE_COLOUR_TRANSFORM (vips_colour_transform_get_type())
#define VIPS_COLOUR_TRANSFORM( obj ) \
(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
VIPS_TYPE_COLOUR_TRANSFORM, VipsColourTransform ))
#define VIPS_COLOUR_TRANSFORM_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_CAST( (klass), \
VIPS_TYPE_COLOUR_TRANSFORM, VipsColourTransformClass))
#define VIPS_IS_COLOUR_TRANSFORM( obj ) \
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR_TRANSFORM ))
#define VIPS_IS_COLOUR_TRANSFORM_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR_TRANSFORM ))
#define VIPS_COLOUR_TRANSFORM_GET_CLASS( obj ) \
(G_TYPE_INSTANCE_GET_CLASS( (obj), \
VIPS_TYPE_COLOUR_TRANSFORM, VipsColourTransformClass ))
typedef struct _VipsColourTransform {
VipsColour parent_instance;
VipsImage *in;
} VipsColourTransform;
typedef struct _VipsColourTransformClass {
VipsColourClass parent_class;
} VipsColourTransformClass;
GType vips_colour_transform_get_type( void );
/* Change colour encoding ... either in or out is not three-band float.
*/
#define VIPS_TYPE_COLOUR_CODE (vips_colour_code_get_type())
#define VIPS_COLOUR_CODE( obj ) \
(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
VIPS_TYPE_COLOUR_CODE, VipsColourCode ))
#define VIPS_COLOUR_CODE_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_CAST( (klass), \
VIPS_TYPE_COLOUR_CODE, VipsColourCodeClass))
#define VIPS_IS_COLOUR_CODE( obj ) \
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR_CODE ))
#define VIPS_IS_COLOUR_CODE_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR_CODE ))
#define VIPS_COLOUR_CODE_GET_CLASS( obj ) \
(G_TYPE_INSTANCE_GET_CLASS( (obj), \
VIPS_TYPE_COLOUR_CODE, VipsColourCodeClass ))
typedef struct _VipsColourCode {
VipsColour parent_instance;
VipsImage *in;
/* Test in against these.
*/
VipsCoding input_coding;
VipsBandFormat input_format;
VipsInterpretation input_interpretation;
} VipsColourCode;
typedef struct _VipsColourCodeClass {
VipsColourClass parent_class;
} VipsColourCodeClass;
GType vips_colour_code_get_type( void );
/* Difference between two colour images.
*/
#define VIPS_TYPE_COLOUR_DIFFERENCE (vips_colour_difference_get_type())
#define VIPS_COLOUR_DIFFERENCE( obj ) \
(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
VIPS_TYPE_COLOUR_DIFFERENCE, VipsColourDifference ))
#define VIPS_COLOUR_DIFFERENCE_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_CAST( (klass), \
VIPS_TYPE_COLOUR_DIFFERENCE, VipsColourDifferenceClass))
#define VIPS_IS_COLOUR_DIFFERENCE( obj ) \
(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR_DIFFERENCE ))
#define VIPS_IS_COLOUR_DIFFERENCE_CLASS( klass ) \
(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR_DIFFERENCE ))
#define VIPS_COLOUR_DIFFERENCE_GET_CLASS( obj ) \
(G_TYPE_INSTANCE_GET_CLASS( (obj), \
VIPS_TYPE_COLOUR_DIFFERENCE, VipsColourDifferenceClass ))
typedef struct _VipsColourDifference {
VipsColour parent_instance;
VipsImage *left;
VipsImage *right;
/* Both get converted to this space.
*/
VipsInterpretation interpretation;
} VipsColourDifference;
typedef struct _VipsColourDifferenceClass {
VipsColourClass parent_class;
} VipsColourDifferenceClass;
GType vips_colour_difference_get_type( void );
void vips__pythagoras_line( VipsColour *colour,
VipsPel *out, VipsPel **in, int width );
#ifdef __cplusplus
}
#endif /*__cplusplus*/
#endif /*VIPS_PCOLOUR_H*/
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