209 lines
5.5 KiB
C
209 lines
5.5 KiB
C
/* base class for all colour operations
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*/
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/*
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Copyright (C) 1991-2005 The National Gallery
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifndef VIPS_PCOLOUR_H
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#define VIPS_PCOLOUR_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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#include <vips/vips.h>
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#define VIPS_TYPE_COLOUR (vips_colour_get_type())
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#define VIPS_COLOUR( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_COLOUR, VipsColour ))
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#define VIPS_COLOUR_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_COLOUR, VipsColourClass))
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#define VIPS_IS_COLOUR( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR ))
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#define VIPS_IS_COLOUR_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR ))
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#define VIPS_COLOUR_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_COLOUR, VipsColourClass ))
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struct _VipsColour;
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typedef void (*VipsColourProcessFn)( struct _VipsColour *colour,
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VipsPel *out, VipsPel **in, int width );
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typedef struct _VipsColour {
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VipsOperation parent_instance;
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/* Null-terminated array of input arguments, set these from a
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* subclass.
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*/
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VipsImage **in;
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int n;
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VipsImage *out;
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/* Set fields on ->out from these.
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*/
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VipsCoding coding;
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VipsInterpretation interpretation;
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VipsBandFormat format;
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int bands;
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/* Attach this profile, if set.
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*/
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char *profile_filename;
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} VipsColour;
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typedef struct _VipsColourClass {
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VipsOperationClass parent_class;
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/* The buffer processor.
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*/
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VipsColourProcessFn process_line;
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} VipsColourClass;
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GType vips_colour_get_type( void );
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/* A float in, float out colourspace transformation.
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*/
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#define VIPS_TYPE_COLOUR_SPACE (vips_colour_space_get_type())
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#define VIPS_COLOUR_SPACE( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_COLOUR_SPACE, VipsColourSpace ))
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#define VIPS_COLOUR_SPACE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_COLOUR_SPACE, VipsColourSpaceClass))
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#define VIPS_IS_COLOUR_SPACE( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR_SPACE ))
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#define VIPS_IS_COLOUR_SPACE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR_SPACE ))
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#define VIPS_COLOUR_SPACE_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_COLOUR_SPACE, VipsColourSpaceClass ))
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typedef struct _VipsColourSpace {
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VipsColour parent_instance;
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VipsImage *in;
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} VipsColourSpace;
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typedef struct _VipsColourSpaceClass {
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VipsColourClass parent_class;
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} VipsColourSpaceClass;
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GType vips_colour_space_get_type( void );
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/* Change colour encoding ... either in or out is not three-band float.
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*/
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#define VIPS_TYPE_COLOUR_CODE (vips_colour_code_get_type())
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#define VIPS_COLOUR_CODE( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_COLOUR_CODE, VipsColourCode ))
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#define VIPS_COLOUR_CODE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_COLOUR_CODE, VipsColourCodeClass))
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#define VIPS_IS_COLOUR_CODE( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR_CODE ))
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#define VIPS_IS_COLOUR_CODE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR_CODE ))
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#define VIPS_COLOUR_CODE_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_COLOUR_CODE, VipsColourCodeClass ))
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typedef struct _VipsColourCode {
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VipsColour parent_instance;
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VipsImage *in;
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/* Test in against these.
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*/
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VipsCoding input_coding;
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VipsBandFormat input_format;
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int input_bands;
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} VipsColourCode;
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typedef struct _VipsColourCodeClass {
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VipsColourClass parent_class;
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} VipsColourCodeClass;
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GType vips_colour_code_get_type( void );
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/* Difference between two colour images.
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*/
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#define VIPS_TYPE_COLOUR_DIFFERENCE (vips_colour_difference_get_type())
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#define VIPS_COLOUR_DIFFERENCE( obj ) \
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(G_TYPE_CHECK_INSTANCE_CAST( (obj), \
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VIPS_TYPE_COLOUR_DIFFERENCE, VipsColourDifference ))
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#define VIPS_COLOUR_DIFFERENCE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_CAST( (klass), \
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VIPS_TYPE_COLOUR_DIFFERENCE, VipsColourDifferenceClass))
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#define VIPS_IS_COLOUR_DIFFERENCE( obj ) \
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(G_TYPE_CHECK_INSTANCE_TYPE( (obj), VIPS_TYPE_COLOUR_DIFFERENCE ))
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#define VIPS_IS_COLOUR_DIFFERENCE_CLASS( klass ) \
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(G_TYPE_CHECK_CLASS_TYPE( (klass), VIPS_TYPE_COLOUR_DIFFERENCE ))
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#define VIPS_COLOUR_DIFFERENCE_GET_CLASS( obj ) \
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(G_TYPE_INSTANCE_GET_CLASS( (obj), \
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VIPS_TYPE_COLOUR_DIFFERENCE, VipsColourDifferenceClass ))
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typedef struct _VipsColourDifference {
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VipsColour parent_instance;
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VipsImage *left;
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VipsImage *right;
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/* Both get converted to this space.
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*/
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VipsInterpretation interpretation;
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} VipsColourDifference;
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typedef struct _VipsColourDifferenceClass {
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VipsColourClass parent_class;
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} VipsColourDifferenceClass;
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GType vips_colour_difference_get_type( void );
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void vips__pythagoras_line( VipsColour *colour,
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VipsPel *out, VipsPel **in, int width );
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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#endif /*VIPS_PCOLOUR_H*/
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