18 #ifndef _MAGICKCORE_QUANTUM_H 19 #define _MAGICKCORE_QUANTUM_H 25 #if defined(__cplusplus) || defined(c_plusplus) 29 #define RoundToQuantum(quantum) ClampToQuantum(quantum) 90 #if defined(MAGICKCORE_HDRI_SUPPORT) 100 return(QuantumRange);
101 return((
Quantum) (value+0.5f));
105 #if (MAGICKCORE_QUANTUM_DEPTH == 8) 106 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
108 #if !defined(MAGICKCORE_HDRI_SUPPORT) 109 return((
unsigned char) quantum);
113 if (quantum >= 255.0)
115 return((
unsigned char) (quantum+0.5));
118 #elif (MAGICKCORE_QUANTUM_DEPTH == 16) 119 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
121 #if !defined(MAGICKCORE_HDRI_SUPPORT) 122 return((
unsigned char) (((quantum+128UL)-((quantum+128UL) >> 8)) >> 8));
126 if ((quantum/257.0) >= 255.0)
128 return((
unsigned char) (quantum/257.0+0.5));
131 #elif (MAGICKCORE_QUANTUM_DEPTH == 32) 132 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
134 #if !defined(MAGICKCORE_HDRI_SUPPORT) 140 if ((quantum/16843009.0) >= 255.0)
142 return((
unsigned char) (quantum/16843009.0+0.5));
145 #elif (MAGICKCORE_QUANTUM_DEPTH == 64) 146 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
148 #if !defined(MAGICKCORE_HDRI_SUPPORT) 149 return((
unsigned char) (quantum/72340172838076673.0+0.5));
153 if ((quantum/72340172838076673.0) >= 255.0)
155 return((
unsigned char) (quantum/72340172838076673.0+0.5));
198 #if defined(__cplusplus) || defined(c_plusplus)
QuantumFormatType
Definition: quantum.h:45
MagickExport void SetQuantumImageType(Image *, const QuantumType)
#define MagickULLConstant(c)
Definition: magick-type.h:39
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:79
EndianType
Definition: quantum.h:31
size_t quantum
Definition: quantum-private.h:45
MagickExport MagickBooleanType SetQuantumDepth(const Image *, QuantumInfo *, const size_t)
#define IsNaN(a)
Definition: image-private.h:25
MagickBooleanType
Definition: magick-type.h:214
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:88
Definition: magick-type.h:216
unsigned short Quantum
Definition: magick-type.h:96
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:53
#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:38
MagickExport void SetQuantumAlphaType(QuantumInfo *, const QuantumAlphaType)
MagickExport QuantumInfo * AcquireQuantumInfo(const ImageInfo *, Image *)
#define QuantumRange
Definition: magick-type.h:97
MagickExport size_t ExportQuantumPixels(const Image *, const CacheView *, const QuantumInfo *, const QuantumType, unsigned char *, ExceptionInfo *)