18 #ifndef _MAGICKCORE_QUANTUM_H
19 #define _MAGICKCORE_QUANTUM_H
24 #if defined(__cplusplus) || defined(c_plusplus)
28 #define RoundToQuantum(quantum) ClampToQuantum(quantum)
89 #if defined(MAGICKCORE_HDRI_SUPPORT)
100 #if (MAGICKCORE_QUANTUM_DEPTH == 8)
101 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
103 #if !defined(MAGICKCORE_HDRI_SUPPORT)
104 return((
unsigned char) quantum);
108 if (quantum >= 255.0)
110 return((
unsigned char) (quantum+0.5));
113 #elif (MAGICKCORE_QUANTUM_DEPTH == 16)
114 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
116 #if !defined(MAGICKCORE_HDRI_SUPPORT)
117 return((
unsigned char) (((quantum+128UL)-((quantum+128UL) >> 8)) >> 8));
121 if ((quantum/257.0) >= 255.0)
123 return((
unsigned char) (quantum/257.0+0.5));
126 #elif (MAGICKCORE_QUANTUM_DEPTH == 32)
127 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
129 #if !defined(MAGICKCORE_HDRI_SUPPORT)
135 if ((quantum/16843009.0) >= 255.0)
137 return((
unsigned char) (quantum/16843009.0+0.5));
140 #elif (MAGICKCORE_QUANTUM_DEPTH == 64)
141 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
143 #if !defined(MAGICKCORE_HDRI_SUPPORT)
144 return((
unsigned char) (quantum/72340172838076673.0+0.5));
148 if ((quantum/72340172838076673.0) >= 255.0)
150 return((
unsigned char) (quantum/72340172838076673.0+0.5));
193 #if defined(__cplusplus) || defined(c_plusplus)
QuantumFormatType
Definition: quantum.h:44
MagickExport void SetQuantumImageType(Image *, const QuantumType)
#define MagickULLConstant(c)
Definition: magick-type.h:36
MagickExport MagickBooleanType SetQuantumFormat(const Image *, QuantumInfo *, const QuantumFormatType)
MagickExport QuantumType GetQuantumType(Image *, ExceptionInfo *)
Definition: quantum.c:521
Definition: exception.h:102
MagickExport QuantumInfo * DestroyQuantumInfo(QuantumInfo *)
Definition: quantum.c:217
MagickExport size_t ImportQuantumPixels(Image *, CacheView *, const QuantumInfo *, const QuantumType, const unsigned char *, ExceptionInfo *)
MagickExport void SetQuantumMinIsWhite(QuantumInfo *, const MagickBooleanType)
Definition: cache-view.c:65
float MagickRealType
Definition: magick-type.h:76
EndianType
Definition: quantum.h:30
size_t quantum
Definition: quantum-private.h:45
MagickExport MagickBooleanType SetQuantumDepth(const Image *, QuantumInfo *, const size_t)
MagickBooleanType
Definition: magick-type.h:211
MagickExport unsigned char * GetQuantumPixels(const QuantumInfo *)
Definition: quantum.c:489
MagickExport size_t GetQuantumExtent(const Image *, const QuantumInfo *, const QuantumType)
Definition: quantum-private.h:42
MagickExport void SetQuantumScale(QuantumInfo *, const double)
Definition: quantum.c:1006
static Quantum ClampToQuantum(const MagickRealType value)
Definition: quantum.h:87
unsigned short Quantum
Definition: magick-type.h:93
MagickExport MagickBooleanType SetQuantumEndian(const Image *, QuantumInfo *, const EndianType)
MagickExport void SetQuantumQuantum(QuantumInfo *, const size_t)
MagickExport QuantumFormatType GetQuantumFormat(const QuantumInfo *)
Definition: quantum.c:387
MagickExport void GetQuantumInfo(const ImageInfo *, QuantumInfo *)
MagickExport MagickBooleanType SetQuantumPad(const Image *, QuantumInfo *, const size_t)
Definition: quantum.c:903
QuantumType
Definition: quantum.h:52
#define MagickExport
Definition: method-attribute.h:98
MagickExport EndianType GetQuantumEndian(const QuantumInfo *)
Definition: quantum.c:358
MagickExport void SetQuantumPack(QuantumInfo *, const MagickBooleanType)
QuantumAlphaType
Definition: quantum.h:37
MagickExport void SetQuantumAlphaType(QuantumInfo *, const QuantumAlphaType)
MagickExport QuantumInfo * AcquireQuantumInfo(const ImageInfo *, Image *)
#define QuantumRange
Definition: magick-type.h:94
MagickExport size_t ExportQuantumPixels(const Image *, const CacheView *, const QuantumInfo *, const QuantumType, unsigned char *, ExceptionInfo *)