/src/freeimage-svn/FreeImage/trunk/Source/LibOpenJPEG/opj_intmath.h

Source
/*
 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
 * Copyright (c) 2002-2007, Professor Benoit Macq
 * Copyright (c) 2001-2003, David Janssens
 * Copyright (c) 2002-2003, Yannick Verschueren
 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
 * Copyright (c) 2005, Herve Drolon, FreeImage Team
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
#ifndef __INT_H
#define __INT_H
/**
@file opj_intmath.h
@brief Implementation of operations on integers (INT)

The functions in OPJ_INTMATH.H have for goal to realize operations on integers.
*/

/** @defgroup OPJ_INTMATH OPJ_INTMATH - Implementation of operations on integers */
/*@{*/

/** @name Exported functions (see also openjpeg.h) */
/*@{*/
/* ----------------------------------------------------------------------- */
/**
Get the minimum of two integers
@return Returns a if a < b else b
*/
static INLINE OPJ_INT32 opj_int_min(OPJ_INT32 a, OPJ_INT32 b) {
  return a < b ? a : b;
}

/**
Get the minimum of two integers
@return Returns a if a < b else b
*/
static INLINE OPJ_UINT32 opj_uint_min(OPJ_UINT32 a, OPJ_UINT32 b) {
  return a < b ? a : b;
}

/**
Get the maximum of two integers
@return Returns a if a > b else b
*/
static INLINE OPJ_INT32 opj_int_max(OPJ_INT32 a, OPJ_INT32 b) {
  return (a > b) ? a : b;
}

/**
Get the maximum of two integers
@return Returns a if a > b else b
*/
static INLINE OPJ_UINT32 opj_uint_max(OPJ_UINT32  a, OPJ_UINT32  b) {
  return (a > b) ? a : b;
}

/**
Clamp an integer inside an interval
@return
<ul>
<li>Returns a if (min < a < max)
<li>Returns max if (a > max)
<li>Returns min if (a < min) 
</ul>
*/
static INLINE OPJ_INT32 opj_int_clamp(OPJ_INT32 a, OPJ_INT32 min, OPJ_INT32 max) {
  if (a < min)
    return min;
  if (a > max)
    return max;
  return a;
}
/**
@return Get absolute value of integer
*/
static INLINE OPJ_INT32 opj_int_abs(OPJ_INT32 a) {
  return a < 0 ? -a : a;
}
/**
Divide an integer and round upwards
@return Returns a divided by b
*/
static INLINE OPJ_INT32 opj_int_ceildiv(OPJ_INT32 a, OPJ_INT32 b) {
  assert(b);
  return (a + b - 1) / b;
}

/**
Divide an integer and round upwards
@return Returns a divided by b
*/
static INLINE OPJ_UINT32  opj_uint_ceildiv(OPJ_UINT32  a, OPJ_UINT32  b) {
  return (a + b - 1) / b;
}

/**
Divide an integer by a power of 2 and round upwards
@return Returns a divided by 2^b
*/
static INLINE OPJ_INT32 opj_int_ceildivpow2(OPJ_INT32 a, OPJ_INT32 b) {
  return (OPJ_INT32)((a + (OPJ_INT64)(1 << b) - 1) >> b);
}
/**
Divide an integer by a power of 2 and round downwards
@return Returns a divided by 2^b
*/
static INLINE OPJ_INT32 opj_int_floordivpow2(OPJ_INT32 a, OPJ_INT32 b) {
  return a >> b;
}
/**
Get logarithm of an integer and round downwards
@return Returns log2(a)
*/
static INLINE OPJ_INT32 opj_int_floorlog2(OPJ_INT32 a) {
  OPJ_INT32 l;
  for (l = 0; a > 1; l++) {
    a >>= 1;
  }
  return l;
}
/**
Get logarithm of an integer and round downwards
@return Returns log2(a)
*/
static INLINE OPJ_UINT32  opj_uint_floorlog2(OPJ_UINT32  a) {
  OPJ_UINT32  l;
  for (l = 0; a > 1; ++l)
  {
    a >>= 1;
  }
  return l;
}

/**
Multiply two fixed-precision rational numbers.
@param a
@param b
@return Returns a * b
*/
static INLINE OPJ_INT32 opj_int_fix_mul(OPJ_INT32 a, OPJ_INT32 b) {
    OPJ_INT64 temp = (OPJ_INT64) a * (OPJ_INT64) b ;
    temp += temp & 4096;
    return (OPJ_INT32) (temp >> 13) ;
}

/* ----------------------------------------------------------------------- */
/*@}*/

/*@}*/

#endif

Line	Count	Source
1		/*
2		* Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3		* Copyright (c) 2002-2007, Professor Benoit Macq
4		* Copyright (c) 2001-2003, David Janssens
5		* Copyright (c) 2002-2003, Yannick Verschueren
6		* Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7		* Copyright (c) 2005, Herve Drolon, FreeImage Team
8		* All rights reserved.
9		*
10		* Redistribution and use in source and binary forms, with or without
11		* modification, are permitted provided that the following conditions
12		* are met:
13		* 1. Redistributions of source code must retain the above copyright
14		* notice, this list of conditions and the following disclaimer.
15		* 2. Redistributions in binary form must reproduce the above copyright
16		* notice, this list of conditions and the following disclaimer in the
17		* documentation and/or other materials provided with the distribution.
18		*
19		* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
20		* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22		* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
23		* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24		* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25		* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26		* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27		* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28		* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29		* POSSIBILITY OF SUCH DAMAGE.
30		*/
31		#ifndef __INT_H
32		#define __INT_H
33		/**
34		@file opj_intmath.h
35		@brief Implementation of operations on integers (INT)
36
37		The functions in OPJ_INTMATH.H have for goal to realize operations on integers.
38		*/
39
40		/** @defgroup OPJ_INTMATH OPJ_INTMATH - Implementation of operations on integers */
41		/@{/
42
43		/** @name Exported functions (see also openjpeg.h) */
44		/@{/
45		/* ----------------------------------------------------------------------- */
46		/**
47		Get the minimum of two integers
48		@return Returns a if a < b else b
49		*/
50	0	static INLINE OPJ_INT32 opj_int_min(OPJ_INT32 a, OPJ_INT32 b) {
51	0	return a < b ? a : b;
52	0	} Unexecuted instantiation: image.c:opj_int_min Unexecuted instantiation: openjpeg.c:opj_int_min Unexecuted instantiation: cio.c:opj_int_min Unexecuted instantiation: event.c:opj_int_min Unexecuted instantiation: j2k.c:opj_int_min Unexecuted instantiation: jp2.c:opj_int_min Unexecuted instantiation: mct.c:opj_int_min Unexecuted instantiation: pi.c:opj_int_min Unexecuted instantiation: tcd.c:opj_int_min Unexecuted instantiation: tgt.c:opj_int_min Unexecuted instantiation: bio.c:opj_int_min Unexecuted instantiation: dwt.c:opj_int_min Unexecuted instantiation: function_list.c:opj_int_min Unexecuted instantiation: invert.c:opj_int_min Unexecuted instantiation: t1.c:opj_int_min Unexecuted instantiation: t2.c:opj_int_min Unexecuted instantiation: mqc.c:opj_int_min Unexecuted instantiation: raw.c:opj_int_min
53
54		/**
55		Get the minimum of two integers
56		@return Returns a if a < b else b
57		*/
58	0	static INLINE OPJ_UINT32 opj_uint_min(OPJ_UINT32 a, OPJ_UINT32 b) {
59	0	return a < b ? a : b;
60	0	} Unexecuted instantiation: image.c:opj_uint_min Unexecuted instantiation: openjpeg.c:opj_uint_min Unexecuted instantiation: cio.c:opj_uint_min Unexecuted instantiation: event.c:opj_uint_min Unexecuted instantiation: j2k.c:opj_uint_min Unexecuted instantiation: jp2.c:opj_uint_min Unexecuted instantiation: mct.c:opj_uint_min Unexecuted instantiation: pi.c:opj_uint_min Unexecuted instantiation: tcd.c:opj_uint_min Unexecuted instantiation: tgt.c:opj_uint_min Unexecuted instantiation: bio.c:opj_uint_min Unexecuted instantiation: dwt.c:opj_uint_min Unexecuted instantiation: function_list.c:opj_uint_min Unexecuted instantiation: invert.c:opj_uint_min Unexecuted instantiation: t1.c:opj_uint_min Unexecuted instantiation: t2.c:opj_uint_min Unexecuted instantiation: mqc.c:opj_uint_min Unexecuted instantiation: raw.c:opj_uint_min
61
62		/**
63		Get the maximum of two integers
64		@return Returns a if a > b else b
65		*/
66	0	static INLINE OPJ_INT32 opj_int_max(OPJ_INT32 a, OPJ_INT32 b) {
67	0	return (a > b) ? a : b;
68	0	} Unexecuted instantiation: image.c:opj_int_max Unexecuted instantiation: openjpeg.c:opj_int_max Unexecuted instantiation: cio.c:opj_int_max Unexecuted instantiation: event.c:opj_int_max Unexecuted instantiation: j2k.c:opj_int_max Unexecuted instantiation: jp2.c:opj_int_max Unexecuted instantiation: mct.c:opj_int_max Unexecuted instantiation: pi.c:opj_int_max Unexecuted instantiation: tcd.c:opj_int_max Unexecuted instantiation: tgt.c:opj_int_max Unexecuted instantiation: bio.c:opj_int_max Unexecuted instantiation: dwt.c:opj_int_max Unexecuted instantiation: function_list.c:opj_int_max Unexecuted instantiation: invert.c:opj_int_max Unexecuted instantiation: t1.c:opj_int_max Unexecuted instantiation: t2.c:opj_int_max Unexecuted instantiation: mqc.c:opj_int_max Unexecuted instantiation: raw.c:opj_int_max
69
70		/**
71		Get the maximum of two integers
72		@return Returns a if a > b else b
73		*/
74	0	static INLINE OPJ_UINT32 opj_uint_max(OPJ_UINT32 a, OPJ_UINT32 b) {
75	0	return (a > b) ? a : b;
76	0	} Unexecuted instantiation: image.c:opj_uint_max Unexecuted instantiation: openjpeg.c:opj_uint_max Unexecuted instantiation: cio.c:opj_uint_max Unexecuted instantiation: event.c:opj_uint_max Unexecuted instantiation: j2k.c:opj_uint_max Unexecuted instantiation: jp2.c:opj_uint_max Unexecuted instantiation: mct.c:opj_uint_max Unexecuted instantiation: pi.c:opj_uint_max Unexecuted instantiation: tcd.c:opj_uint_max Unexecuted instantiation: tgt.c:opj_uint_max Unexecuted instantiation: bio.c:opj_uint_max Unexecuted instantiation: dwt.c:opj_uint_max Unexecuted instantiation: function_list.c:opj_uint_max Unexecuted instantiation: invert.c:opj_uint_max Unexecuted instantiation: t1.c:opj_uint_max Unexecuted instantiation: t2.c:opj_uint_max Unexecuted instantiation: mqc.c:opj_uint_max Unexecuted instantiation: raw.c:opj_uint_max
77
78		/**
79		Clamp an integer inside an interval
80		@return
81		<ul>
82		<li>Returns a if (min < a < max)
83		<li>Returns max if (a > max)
84		<li>Returns min if (a < min)
85		</ul>
86		*/
87	0	static INLINE OPJ_INT32 opj_int_clamp(OPJ_INT32 a, OPJ_INT32 min, OPJ_INT32 max) {
88	0	if (a < min)
89	0	return min;
90	0	if (a > max)
91	0	return max;
92	0	return a;
93	0	} Unexecuted instantiation: image.c:opj_int_clamp Unexecuted instantiation: openjpeg.c:opj_int_clamp Unexecuted instantiation: cio.c:opj_int_clamp Unexecuted instantiation: event.c:opj_int_clamp Unexecuted instantiation: j2k.c:opj_int_clamp Unexecuted instantiation: jp2.c:opj_int_clamp Unexecuted instantiation: mct.c:opj_int_clamp Unexecuted instantiation: pi.c:opj_int_clamp Unexecuted instantiation: tcd.c:opj_int_clamp Unexecuted instantiation: tgt.c:opj_int_clamp Unexecuted instantiation: bio.c:opj_int_clamp Unexecuted instantiation: dwt.c:opj_int_clamp Unexecuted instantiation: function_list.c:opj_int_clamp Unexecuted instantiation: invert.c:opj_int_clamp Unexecuted instantiation: t1.c:opj_int_clamp Unexecuted instantiation: t2.c:opj_int_clamp Unexecuted instantiation: mqc.c:opj_int_clamp Unexecuted instantiation: raw.c:opj_int_clamp
94		/**
95		@return Get absolute value of integer
96		*/
97	0	static INLINE OPJ_INT32 opj_int_abs(OPJ_INT32 a) {
98	0	return a < 0 ? -a : a;
99	0	} Unexecuted instantiation: image.c:opj_int_abs Unexecuted instantiation: openjpeg.c:opj_int_abs Unexecuted instantiation: cio.c:opj_int_abs Unexecuted instantiation: event.c:opj_int_abs Unexecuted instantiation: j2k.c:opj_int_abs Unexecuted instantiation: jp2.c:opj_int_abs Unexecuted instantiation: mct.c:opj_int_abs Unexecuted instantiation: pi.c:opj_int_abs Unexecuted instantiation: tcd.c:opj_int_abs Unexecuted instantiation: tgt.c:opj_int_abs Unexecuted instantiation: bio.c:opj_int_abs Unexecuted instantiation: dwt.c:opj_int_abs Unexecuted instantiation: function_list.c:opj_int_abs Unexecuted instantiation: invert.c:opj_int_abs Unexecuted instantiation: t1.c:opj_int_abs Unexecuted instantiation: t2.c:opj_int_abs Unexecuted instantiation: mqc.c:opj_int_abs Unexecuted instantiation: raw.c:opj_int_abs
100		/**
101		Divide an integer and round upwards
102		@return Returns a divided by b
103		*/
104	0	static INLINE OPJ_INT32 opj_int_ceildiv(OPJ_INT32 a, OPJ_INT32 b) {
105	0	assert(b);
106	0	return (a + b - 1) / b;
107	0	} Unexecuted instantiation: image.c:opj_int_ceildiv Unexecuted instantiation: openjpeg.c:opj_int_ceildiv Unexecuted instantiation: cio.c:opj_int_ceildiv Unexecuted instantiation: event.c:opj_int_ceildiv Unexecuted instantiation: j2k.c:opj_int_ceildiv Unexecuted instantiation: jp2.c:opj_int_ceildiv Unexecuted instantiation: mct.c:opj_int_ceildiv Unexecuted instantiation: pi.c:opj_int_ceildiv Unexecuted instantiation: tcd.c:opj_int_ceildiv Unexecuted instantiation: tgt.c:opj_int_ceildiv Unexecuted instantiation: bio.c:opj_int_ceildiv Unexecuted instantiation: dwt.c:opj_int_ceildiv Unexecuted instantiation: function_list.c:opj_int_ceildiv Unexecuted instantiation: invert.c:opj_int_ceildiv Unexecuted instantiation: t1.c:opj_int_ceildiv Unexecuted instantiation: t2.c:opj_int_ceildiv Unexecuted instantiation: mqc.c:opj_int_ceildiv Unexecuted instantiation: raw.c:opj_int_ceildiv
108
109		/**
110		Divide an integer and round upwards
111		@return Returns a divided by b
112		*/
113	0	static INLINE OPJ_UINT32 opj_uint_ceildiv(OPJ_UINT32 a, OPJ_UINT32 b) {
114	0	return (a + b - 1) / b;
115	0	} Unexecuted instantiation: image.c:opj_uint_ceildiv Unexecuted instantiation: openjpeg.c:opj_uint_ceildiv Unexecuted instantiation: cio.c:opj_uint_ceildiv Unexecuted instantiation: event.c:opj_uint_ceildiv Unexecuted instantiation: j2k.c:opj_uint_ceildiv Unexecuted instantiation: jp2.c:opj_uint_ceildiv Unexecuted instantiation: mct.c:opj_uint_ceildiv Unexecuted instantiation: pi.c:opj_uint_ceildiv Unexecuted instantiation: tcd.c:opj_uint_ceildiv Unexecuted instantiation: tgt.c:opj_uint_ceildiv Unexecuted instantiation: bio.c:opj_uint_ceildiv Unexecuted instantiation: dwt.c:opj_uint_ceildiv Unexecuted instantiation: function_list.c:opj_uint_ceildiv Unexecuted instantiation: invert.c:opj_uint_ceildiv Unexecuted instantiation: t1.c:opj_uint_ceildiv Unexecuted instantiation: t2.c:opj_uint_ceildiv Unexecuted instantiation: mqc.c:opj_uint_ceildiv Unexecuted instantiation: raw.c:opj_uint_ceildiv
116
117		/**
118		Divide an integer by a power of 2 and round upwards
119		@return Returns a divided by 2^b
120		*/
121	0	static INLINE OPJ_INT32 opj_int_ceildivpow2(OPJ_INT32 a, OPJ_INT32 b) {
122	0	return (OPJ_INT32)((a + (OPJ_INT64)(1 << b) - 1) >> b);
123	0	} Unexecuted instantiation: image.c:opj_int_ceildivpow2 Unexecuted instantiation: openjpeg.c:opj_int_ceildivpow2 Unexecuted instantiation: cio.c:opj_int_ceildivpow2 Unexecuted instantiation: event.c:opj_int_ceildivpow2 Unexecuted instantiation: j2k.c:opj_int_ceildivpow2 Unexecuted instantiation: jp2.c:opj_int_ceildivpow2 Unexecuted instantiation: mct.c:opj_int_ceildivpow2 Unexecuted instantiation: pi.c:opj_int_ceildivpow2 Unexecuted instantiation: tcd.c:opj_int_ceildivpow2 Unexecuted instantiation: tgt.c:opj_int_ceildivpow2 Unexecuted instantiation: bio.c:opj_int_ceildivpow2 Unexecuted instantiation: dwt.c:opj_int_ceildivpow2 Unexecuted instantiation: function_list.c:opj_int_ceildivpow2 Unexecuted instantiation: invert.c:opj_int_ceildivpow2 Unexecuted instantiation: t1.c:opj_int_ceildivpow2 Unexecuted instantiation: t2.c:opj_int_ceildivpow2 Unexecuted instantiation: mqc.c:opj_int_ceildivpow2 Unexecuted instantiation: raw.c:opj_int_ceildivpow2
124		/**
125		Divide an integer by a power of 2 and round downwards
126		@return Returns a divided by 2^b
127		*/
128	0	static INLINE OPJ_INT32 opj_int_floordivpow2(OPJ_INT32 a, OPJ_INT32 b) {
129	0	return a >> b;
130	0	} Unexecuted instantiation: image.c:opj_int_floordivpow2 Unexecuted instantiation: openjpeg.c:opj_int_floordivpow2 Unexecuted instantiation: cio.c:opj_int_floordivpow2 Unexecuted instantiation: event.c:opj_int_floordivpow2 Unexecuted instantiation: j2k.c:opj_int_floordivpow2 Unexecuted instantiation: jp2.c:opj_int_floordivpow2 Unexecuted instantiation: mct.c:opj_int_floordivpow2 Unexecuted instantiation: pi.c:opj_int_floordivpow2 Unexecuted instantiation: tcd.c:opj_int_floordivpow2 Unexecuted instantiation: tgt.c:opj_int_floordivpow2 Unexecuted instantiation: bio.c:opj_int_floordivpow2 Unexecuted instantiation: dwt.c:opj_int_floordivpow2 Unexecuted instantiation: function_list.c:opj_int_floordivpow2 Unexecuted instantiation: invert.c:opj_int_floordivpow2 Unexecuted instantiation: t1.c:opj_int_floordivpow2 Unexecuted instantiation: t2.c:opj_int_floordivpow2 Unexecuted instantiation: mqc.c:opj_int_floordivpow2 Unexecuted instantiation: raw.c:opj_int_floordivpow2
131		/**
132		Get logarithm of an integer and round downwards
133		@return Returns log2(a)
134		*/
135	0	static INLINE OPJ_INT32 opj_int_floorlog2(OPJ_INT32 a) {
136	0	OPJ_INT32 l;
137	0	for (l = 0; a > 1; l++) {
138	0	a >>= 1;
139	0	}
140	0	return l;
141	0	} Unexecuted instantiation: image.c:opj_int_floorlog2 Unexecuted instantiation: openjpeg.c:opj_int_floorlog2 Unexecuted instantiation: cio.c:opj_int_floorlog2 Unexecuted instantiation: event.c:opj_int_floorlog2 Unexecuted instantiation: j2k.c:opj_int_floorlog2 Unexecuted instantiation: jp2.c:opj_int_floorlog2 Unexecuted instantiation: mct.c:opj_int_floorlog2 Unexecuted instantiation: pi.c:opj_int_floorlog2 Unexecuted instantiation: tcd.c:opj_int_floorlog2 Unexecuted instantiation: tgt.c:opj_int_floorlog2 Unexecuted instantiation: bio.c:opj_int_floorlog2 Unexecuted instantiation: dwt.c:opj_int_floorlog2 Unexecuted instantiation: function_list.c:opj_int_floorlog2 Unexecuted instantiation: invert.c:opj_int_floorlog2 Unexecuted instantiation: t1.c:opj_int_floorlog2 Unexecuted instantiation: t2.c:opj_int_floorlog2 Unexecuted instantiation: mqc.c:opj_int_floorlog2 Unexecuted instantiation: raw.c:opj_int_floorlog2
142		/**
143		Get logarithm of an integer and round downwards
144		@return Returns log2(a)
145		*/
146	0	static INLINE OPJ_UINT32 opj_uint_floorlog2(OPJ_UINT32 a) {
147	0	OPJ_UINT32 l;
148	0	for (l = 0; a > 1; ++l)
149	0	{
150	0	a >>= 1;
151	0	}
152	0	return l;
153	0	} Unexecuted instantiation: image.c:opj_uint_floorlog2 Unexecuted instantiation: openjpeg.c:opj_uint_floorlog2 Unexecuted instantiation: cio.c:opj_uint_floorlog2 Unexecuted instantiation: event.c:opj_uint_floorlog2 Unexecuted instantiation: j2k.c:opj_uint_floorlog2 Unexecuted instantiation: jp2.c:opj_uint_floorlog2 Unexecuted instantiation: mct.c:opj_uint_floorlog2 Unexecuted instantiation: pi.c:opj_uint_floorlog2 Unexecuted instantiation: tcd.c:opj_uint_floorlog2 Unexecuted instantiation: tgt.c:opj_uint_floorlog2 Unexecuted instantiation: bio.c:opj_uint_floorlog2 Unexecuted instantiation: dwt.c:opj_uint_floorlog2 Unexecuted instantiation: function_list.c:opj_uint_floorlog2 Unexecuted instantiation: invert.c:opj_uint_floorlog2 Unexecuted instantiation: t1.c:opj_uint_floorlog2 Unexecuted instantiation: t2.c:opj_uint_floorlog2 Unexecuted instantiation: mqc.c:opj_uint_floorlog2 Unexecuted instantiation: raw.c:opj_uint_floorlog2
154
155		/**
156		Multiply two fixed-precision rational numbers.
157		@param a
158		@param b
159		@return Returns a * b
160		*/
161	0	static INLINE OPJ_INT32 opj_int_fix_mul(OPJ_INT32 a, OPJ_INT32 b) {
162	0	OPJ_INT64 temp = (OPJ_INT64) a * (OPJ_INT64) b ;
163	0	temp += temp & 4096;
164	0	return (OPJ_INT32) (temp >> 13) ;
165	0	} Unexecuted instantiation: image.c:opj_int_fix_mul Unexecuted instantiation: openjpeg.c:opj_int_fix_mul Unexecuted instantiation: cio.c:opj_int_fix_mul Unexecuted instantiation: event.c:opj_int_fix_mul Unexecuted instantiation: j2k.c:opj_int_fix_mul Unexecuted instantiation: jp2.c:opj_int_fix_mul Unexecuted instantiation: mct.c:opj_int_fix_mul Unexecuted instantiation: pi.c:opj_int_fix_mul Unexecuted instantiation: tcd.c:opj_int_fix_mul Unexecuted instantiation: tgt.c:opj_int_fix_mul Unexecuted instantiation: bio.c:opj_int_fix_mul Unexecuted instantiation: dwt.c:opj_int_fix_mul Unexecuted instantiation: function_list.c:opj_int_fix_mul Unexecuted instantiation: invert.c:opj_int_fix_mul Unexecuted instantiation: t1.c:opj_int_fix_mul Unexecuted instantiation: t2.c:opj_int_fix_mul Unexecuted instantiation: mqc.c:opj_int_fix_mul Unexecuted instantiation: raw.c:opj_int_fix_mul
166
167		/* ----------------------------------------------------------------------- */
168		/@}/
169
170		/@}/
171
172		#endif

Coverage Report

Created: 2025-10-28 06:24