1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
|
/* base class for all arithmetic operations
*/
/*
Copyright (C) 1991-2005 The National Gallery
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; 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_PARITHMETIC_H
#define VIPS_PARITHMETIC_H
#ifdef __cplusplus
extern "C" {
#endif /*__cplusplus*/
#include <vips/vips.h>
#define VIPS_TYPE_ARITHMETIC (vips_arithmetic_get_type())
#define VIPS_ARITHMETIC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
VIPS_TYPE_ARITHMETIC, VipsArithmetic))
#define VIPS_ARITHMETIC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), \
VIPS_TYPE_ARITHMETIC, VipsArithmeticClass))
#define VIPS_IS_ARITHMETIC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), VIPS_TYPE_ARITHMETIC))
#define VIPS_IS_ARITHMETIC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), VIPS_TYPE_ARITHMETIC))
#define VIPS_ARITHMETIC_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), \
VIPS_TYPE_ARITHMETIC, VipsArithmeticClass))
struct _VipsArithmetic;
typedef void (*VipsArithmeticProcessFn)(struct _VipsArithmetic *arithmetic,
VipsPel *out, VipsPel **in, int width);
typedef struct _VipsArithmetic {
VipsOperation parent_instance;
/* All have an output image.
*/
VipsImage *out;
/* Array of input arguments, set these from a subclass.
*/
VipsImage **in;
int n;
/* The minimum number of output bands. For example, VipsLinear with a
* three element constant must make at least a three-band output.
*/
int base_bands;
/* The input images, ready for the operation.
*/
VipsImage **ready;
/* Set this to override class->format_table.
*/
VipsBandFormat format;
} VipsArithmetic;
typedef struct _VipsArithmeticClass {
VipsOperationClass parent_class;
/* For each input format, what output format. Used for arithmetic
* too, since we cast inputs to match.
*/
const VipsBandFormat *format_table;
/* The buffer processor.
*/
VipsArithmeticProcessFn process_line;
} VipsArithmeticClass;
GType vips_arithmetic_get_type(void);
void vips_arithmetic_set_format_table(VipsArithmeticClass *klass,
const VipsBandFormat *format_table);
#ifdef __cplusplus
}
#endif /*__cplusplus*/
#endif /*VIPS_PARITHMETIC_H*/
|
