18 #ifndef MAGICKCORE_QUANTUM_H
19 #define MAGICKCORE_QUANTUM_H
25 #if defined(__cplusplus) || defined(c_plusplus)
87 #if defined(MAGICKCORE_HDRI_SUPPORT)
102 #if (MAGICKCORE_QUANTUM_DEPTH == 8)
103 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
105 #if !defined(MAGICKCORE_HDRI_SUPPORT)
106 return((
unsigned char) quantum);
110 if (quantum >= 255.0)
112 return((
unsigned char) (quantum+0.5));
115 #elif (MAGICKCORE_QUANTUM_DEPTH == 16)
116 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
118 #if !defined(MAGICKCORE_HDRI_SUPPORT)
119 return((
unsigned char) (((quantum+128UL)-((quantum+128UL) >> 8)) >> 8));
123 if ((quantum/257.0) >= 255.0)
125 return((
unsigned char) (quantum/257.0+0.5));
128 #elif (MAGICKCORE_QUANTUM_DEPTH == 32)
129 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
131 #if !defined(MAGICKCORE_HDRI_SUPPORT)
137 if ((quantum/16843009.0) >= 255.0)
139 return((
unsigned char) (quantum/16843009.0+0.5));
142 #elif (MAGICKCORE_QUANTUM_DEPTH == 64)
143 static inline unsigned char ScaleQuantumToChar(
const Quantum quantum)
145 #if !defined(MAGICKCORE_HDRI_SUPPORT)
146 return((
unsigned char) (quantum/72340172838076673.0+0.5));
150 if ((quantum/72340172838076673.0) >= 255.0)
152 return((
unsigned char) (quantum/72340172838076673.0+0.5));
195 #if defined(__cplusplus) || defined(c_plusplus)
#define magick_restrict
Definition: MagickCore.h:41
MagickDoubleType MagickRealType
Definition: magick-type.h:120
QuantumFormatType
Definition: quantum.h:43
MagickExport EndianType GetQuantumEndian(const QuantumInfo *quantum_info)
Definition: quantum.c:358
MagickExport MagickBooleanType SetQuantumFormat(const Image *image, QuantumInfo *quantum_info, const QuantumFormatType format)
Definition: quantum.c:766
#define MagickULLConstant(c)
Definition: magick-type.h:36
Definition: exception.h:101
Definition: cache-view.c:65
MagickExport MagickBooleanType SetQuantumEndian(const Image *image, QuantumInfo *quantum_info, const EndianType endian)
Definition: quantum.c:726
EndianType
Definition: quantum.h:29
size_t quantum
Definition: quantum-private.h:48
MagickBooleanType
Definition: magick-type.h:158
MagickExport size_t ImportQuantumPixels(const Image *image, CacheView *image_view, QuantumInfo *quantum_info, const QuantumType quantum_type, const unsigned char *magick_restrict pixels, ExceptionInfo *exception)
Definition: quantum-import.c:4093
MagickExport MagickBooleanType SetQuantumDepth(const Image *image, QuantumInfo *quantum_info, const size_t depth)
Definition: quantum.c:662
MagickExport MagickBooleanType SetQuantumPad(const Image *image, QuantumInfo *quantum_info, const size_t pad)
Definition: quantum.c:906
MagickExport void SetQuantumAlphaType(QuantumInfo *quantum_info, const QuantumAlphaType type)
Definition: quantum.c:627
MagickExport void SetQuantumScale(QuantumInfo *quantum_info, const double scale)
Definition: quantum.c:1009
MagickExport size_t ExportQuantumPixels(const Image *image, CacheView *image_view, QuantumInfo *quantum_info, const QuantumType quantum_type, unsigned char *magick_restrict pixels, ExceptionInfo *exception)
Definition: quantum-export.c:3867
MagickExport unsigned char * GetQuantumPixels(const QuantumInfo *quantum_info)
Definition: quantum.c:489
MagickExport void SetQuantumMinIsWhite(QuantumInfo *quantum_info, const MagickBooleanType min_is_white)
Definition: quantum.c:944
MagickExport void SetQuantumImageType(Image *image, const QuantumType quantum_type)
Definition: quantum.c:805
Definition: quantum-private.h:45
#define IsNaN(a)
Definition: magick-type.h:181
static Quantum ClampToQuantum(const MagickRealType value)
Definition: quantum.h:85
Definition: magick-type.h:160
MagickExport QuantumFormatType GetQuantumFormat(const QuantumInfo *quantum_info)
Definition: quantum.c:387
unsigned short Quantum
Definition: magick-type.h:82
MagickExport void SetQuantumQuantum(QuantumInfo *quantum_info, const size_t quantum)
Definition: quantum.c:977
QuantumType
Definition: quantum.h:51
#define MagickExport
Definition: method-attribute.h:80
MagickExport void GetQuantumInfo(const ImageInfo *image_info, QuantumInfo *quantum_info)
Definition: quantum.c:418
MagickExport QuantumInfo * AcquireQuantumInfo(const ImageInfo *image_info, Image *image)
Definition: quantum.c:110
QuantumAlphaType
Definition: quantum.h:36
MagickExport void SetQuantumPack(QuantumInfo *quantum_info, const MagickBooleanType pack)
Definition: quantum.c:871
#define QuantumRange
Definition: magick-type.h:83
MagickExport QuantumInfo * DestroyQuantumInfo(QuantumInfo *quantum_info)
Definition: quantum.c:213
MagickExport size_t GetQuantumExtent(const Image *image, const QuantumInfo *quantum_info, const QuantumType quantum_type)
Definition: quantum.c:306
MagickExport QuantumType GetQuantumType(Image *image, ExceptionInfo *exception)
Definition: quantum.c:523