summaryrefslogtreecommitdiff
path: root/support/dktools/dk4bb32.h
blob: 2fa79ebaa471083b518c207fd886e895ad00d7d1 (plain)
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
/*
Copyright (C) 2017-2020, Dirk Krause
SPDX-License-Identifier: BSD-3-Clause
*/

/*
	WARNING: This file was generated by the dkct program (see
	http://dktools.sourceforge.net/ for details).
	Changes you make here will be lost if dkct is run again!
	You should modify the original source and run dkct on it.
	Original source: dk4bb32.ctr
*/

#ifndef DK4BB32_H_INCLUDED
/** Avoid multiple inclusions. */
#define DK4BB32_H_INCLUDED 1


#line 9 "dk4bb32.ctr"

/**	@file	dk4bb32.h	Bounding box for int32_t coordinates.
*/

#ifndef	DK4CONF_H_INCLUDED
#if	DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif

#ifndef	DK4TYPES_H_INCLUDED
#if	DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif



/**	 Bounding box for int32_t coordinates.
*/
typedef struct {
	int32_t			xmin;	/**< Minimum x value. */
	int32_t			xmax;	/**< Maximum x value. */
	int32_t			ymin;	/**< Minimum y value. */
	int32_t			ymax;	/**< Maximum y value. */
	unsigned char	hx;		/**< Flag: Have x values. */
	unsigned char	hy;		/**< Flag: Have y values. */
} dk4_bb32_t;



#ifdef	__cplusplus
extern "C" {
#endif


/**	Initialize bounding box structure.
	@param	bbptr	Structure to initialize.
*/

void
dk4bb32_init(dk4_bb32_t *bbptr);


/**	Add x value to bounding box.
	@param	bbptr	Structure to modify.
	@param	x		Value to add.
*/

void
dk4bb32_add_x(dk4_bb32_t *bbptr, int32_t x);


/**	Add y value to bounding box.
	@param	bbptr	Structure to modify.
	@param	y		Value to add.
*/

void
dk4bb32_add_y(dk4_bb32_t *bbptr, int32_t y);


/**	Add x and y value of a point to bounding box.
	@param	bbptr	Structure to modify.
	@param	x		X value to add.
	@param	y		Y value to add.
*/

void
dk4bb32_add_point(dk4_bb32_t *bbptr, int32_t x, int32_t y);


/**	Check whether a bounding box contains x information.
	@param	bbptr	Structure to check.
	@return	1 if x information available, 0 otherwise.
*/

int
dk4bb32_have_x(dk4_bb32_t const *bbptr);


/**	Check whether a bounding box contains y information.
	@param	bbptr	Structure to check.
	@return	1 if y information available, 0 otherwise.
*/

int
dk4bb32_have_y(dk4_bb32_t const *bbptr);


/**	Get minimum x value from bounding box structure.
	@param	bbptr	Structure to use.
	@return	Minimum x value if x information available, random value otherwise.
*/

int32_t
dk4bb32_get_x_min(dk4_bb32_t const *bbptr);


/**	Get maximum x value from bounding box structure.
	@param	bbptr	Structure to use.
	@return	Maximum x value if x information available, random value otherwise.
*/

int32_t
dk4bb32_get_x_max(dk4_bb32_t const *bbptr);


/**	Get minimum y value from bounding box structure.
	@param	bbptr	Structure to use.
	@return	Minimum y value if y information available, random value otherwise.
*/

int32_t
dk4bb32_get_y_min(dk4_bb32_t const *bbptr);


/**	Get maximum y value from bounding box structure.
	@param	bbptr	Structure to use.
	@return	Maximum y value if y information available, random value otherwise.
*/

int32_t
dk4bb32_get_y_max(dk4_bb32_t const *bbptr);


#ifdef	__cplusplus
}
#endif

/* vim: set ai sw=4 ts=4 : */


#endif