/usr/include/ImageMagick/magick/quantum.h is in libmagickcore-dev 8:6.6.9.7-5ubuntu3.9.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 | /*
Copyright 1999-2008 ImageMagick Studio LLC, a non-profit organization
dedicated to making software imaging solutions freely available.
You may not use this file except in compliance with the License.
obtain a copy of the License at
http://www.imagemagick.org/script/license.php
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
MagickCore quantum inline methods.
*/
#ifndef _MAGICKCORE_QUANTUM_H
#define _MAGICKCORE_QUANTUM_H
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
#include "magick/semaphore.h"
#define RoundToQuantum(quantum) ClampToQuantum(quantum)
typedef enum
{
UndefinedEndian,
LSBEndian,
MSBEndian
} EndianType;
typedef enum
{
UndefinedQuantumAlpha,
AssociatedQuantumAlpha,
DisassociatedQuantumAlpha
} QuantumAlphaType;
typedef enum
{
UndefinedQuantumFormat,
FloatingPointQuantumFormat,
SignedQuantumFormat,
UnsignedQuantumFormat
} QuantumFormatType;
typedef enum
{
UndefinedQuantum,
AlphaQuantum,
BlackQuantum,
BlueQuantum,
CMYKAQuantum,
CMYKQuantum,
CyanQuantum,
GrayAlphaQuantum,
GrayQuantum,
GreenQuantum,
IndexAlphaQuantum,
IndexQuantum,
MagentaQuantum,
OpacityQuantum,
RedQuantum,
RGBAQuantum,
BGRAQuantum,
RGBOQuantum,
RGBQuantum,
YellowQuantum,
GrayPadQuantum, /* deprecated */
RGBPadQuantum,
CbYCrYQuantum,
CbYCrQuantum,
CbYCrAQuantum,
CMYKOQuantum,
BGRQuantum,
BGROQuantum
} QuantumType;
typedef struct _QuantumInfo
QuantumInfo;
static inline Quantum ClampToQuantum(const MagickRealType value)
{
#if defined(MAGICKCORE_HDRI_SUPPORT)
return((Quantum) value);
#else
if (value <= 0.0)
return((Quantum) 0);
if (value >= (MagickRealType) QuantumRange)
return((Quantum) QuantumRange);
return((Quantum) (value+0.5));
#endif
}
#if (MAGICKCORE_QUANTUM_DEPTH == 8)
static inline unsigned char ScaleQuantumToChar(const Quantum quantum)
{
#if !defined(MAGICKCORE_HDRI_SUPPORT)
return((unsigned char) quantum);
#else
if (quantum <= 0.0)
return(0);
if (quantum >= 255.0)
return(255);
return((unsigned char) (quantum+0.5));
#endif
}
#elif (MAGICKCORE_QUANTUM_DEPTH == 16)
static inline unsigned char ScaleQuantumToChar(const Quantum quantum)
{
#if !defined(MAGICKCORE_HDRI_SUPPORT)
return((unsigned char) (((quantum+128UL)-((quantum+128UL) >> 8)) >> 8));
#else
if (quantum <= 0.0)
return(0);
if ((quantum/257.0) >= 255.0)
return(255);
return((unsigned char) (quantum/257.0+0.5));
#endif
}
#elif (MAGICKCORE_QUANTUM_DEPTH == 32)
static inline unsigned char ScaleQuantumToChar(const Quantum quantum)
{
#if !defined(MAGICKCORE_HDRI_SUPPORT)
return((unsigned char) ((quantum+MagickULLConstant(8421504))/
MagickULLConstant(16843009)));
#else
if (quantum <= 0.0)
return(0);
if ((quantum/16843009.0) >= 255.0)
return(255);
return((unsigned char) (quantum/16843009.0+0.5));
#endif
}
#elif (MAGICKCORE_QUANTUM_DEPTH == 64)
static inline unsigned char ScaleQuantumToChar(const Quantum quantum)
{
#if !defined(MAGICKCORE_HDRI_SUPPORT)
return((unsigned char) (quantum/72340172838076673.0+0.5));
#else
if (quantum <= 0.0)
return(0);
if ((quantum/72340172838076673.0) >= 255.0)
return(255);
return((unsigned char) (quantum/72340172838076673.0+0.5));
#endif
}
#endif
extern MagickExport MagickBooleanType
SetQuantumDepth(const Image *,QuantumInfo *,const size_t),
SetQuantumFormat(const Image *,QuantumInfo *,const QuantumFormatType),
SetQuantumPad(const Image *,QuantumInfo *,const size_t);
extern MagickExport QuantumInfo
*AcquireQuantumInfo(const ImageInfo *,Image *),
*DestroyQuantumInfo(QuantumInfo *);
extern MagickExport QuantumType
GetQuantumType(Image *,ExceptionInfo *);
extern MagickExport size_t
ExportQuantumPixels(const Image *,const CacheView *,const QuantumInfo *,
const QuantumType,unsigned char *,ExceptionInfo *),
GetQuantumExtent(const Image *,const QuantumInfo *,const QuantumType),
ImportQuantumPixels(Image *,CacheView *,const QuantumInfo *,const QuantumType,
const unsigned char *,ExceptionInfo *);
extern MagickExport unsigned char
*GetQuantumPixels(const QuantumInfo *);
extern MagickExport void
GetQuantumInfo(const ImageInfo *,QuantumInfo *),
SetQuantumAlphaType(QuantumInfo *,const QuantumAlphaType),
SetQuantumImageType(Image *,const QuantumType),
SetQuantumMinIsWhite(QuantumInfo *,const MagickBooleanType),
SetQuantumPack(QuantumInfo *,const MagickBooleanType),
SetQuantumQuantum(QuantumInfo *,const size_t),
SetQuantumScale(QuantumInfo *,const double);
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
#endif
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