/usr/include/CharLS/util.h is in libcharls-dev 1.0-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// (C) Jan de Vaan 2007-2010, all rights reserved. See the accompanying "License.txt" for licensed use.
//
#ifndef CHARLS_UTIL
#define CHARLS_UTIL
#include <stdlib.h>
#include <string.h>
#include "publictypes.h"
#ifndef MAX
#define MAX(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef MIN
#define MIN(a,b) (((a) < (b)) ? (a) : (b))
#endif
inline LONG log_2(LONG n)
{
LONG x = 0;
while (n > (LONG(1) << x))
{
++x;
}
return x;
}
struct Size
{
Size(LONG width, LONG height) :
cx(width),
cy(height)
{}
LONG cx;
LONG cy;
};
inline LONG Sign(LONG n)
{ return (n >> (LONG_BITCOUNT-1)) | 1;}
inline LONG BitWiseSign(LONG i)
{ return i >> (LONG_BITCOUNT-1); }
template<class SAMPLE>
struct Triplet
{
Triplet() :
v1(0),
v2(0),
v3(0)
{}
Triplet(LONG x1, LONG x2, LONG x3) :
v1((SAMPLE)x1),
v2((SAMPLE)x2),
v3((SAMPLE)x3)
{}
union
{
SAMPLE v1;
SAMPLE R;
};
union
{
SAMPLE v2;
SAMPLE G;
};
union
{
SAMPLE v3;
SAMPLE B;
};
};
inline bool operator==(const Triplet<BYTE>& lhs, const Triplet<BYTE>& rhs)
{ return lhs.v1 == rhs.v1 && lhs.v2 == rhs.v2 && lhs.v3 == rhs.v3; }
inline bool operator!=(const Triplet<BYTE>& lhs, const Triplet<BYTE>& rhs)
{ return !(lhs == rhs); }
template<class sample>
struct Quad : public Triplet<sample>
{
Quad() :
v4(0)
{}
Quad(Triplet<sample> triplet, LONG alpha) : Triplet<sample>(triplet), A((sample)alpha)
{}
union
{
sample v4;
sample A;
};
};
template <int size>
struct FromBigEndian
{
};
template <>
struct FromBigEndian<4>
{
inlinehint static unsigned int Read(BYTE* pbyte)
{
return (pbyte[0] << 24) + (pbyte[1] << 16) + (pbyte[2] << 8) + (pbyte[3] << 0);
}
};
template <>
struct FromBigEndian<8>
{
inlinehint static uint64_t Read(BYTE* pbyte)
{
return (uint64_t(pbyte[0]) << 56) + (uint64_t(pbyte[1]) << 48) + (uint64_t(pbyte[2]) << 40) + (uint64_t(pbyte[3]) << 32) +
(uint64_t(pbyte[4]) << 24) + (uint64_t(pbyte[5]) << 16) + (uint64_t(pbyte[6]) << 8) + (uint64_t(pbyte[7]) << 0);
}
};
class JlsException
{
public:
JlsException(JLS_ERROR error) : _error(error)
{ }
JLS_ERROR _error;
};
#endif
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