18 #ifndef MAGICKCORE_PIXEL_ACCESSOR_H
19 #define MAGICKCORE_PIXEL_ACCESSOR_H
25 #if defined(__cplusplus) || defined(c_plusplus)
29 #define ClampPixelRed(pixel) ClampToQuantum((pixel)->red)
30 #define ClampPixelGreen(pixel) ClampToQuantum((pixel)->green)
31 #define ClampPixelBlue(pixel) ClampToQuantum((pixel)->blue)
32 #define ClampPixelIndex(indexes) ClampToQuantum(*(indexes))
33 #define ClampPixelOpacity(pixel) ClampToQuantum((pixel)->opacity)
34 #define GetPixela(pixel) ((pixel)->green)
35 #define GetPixelb(pixel) ((pixel)->blue)
36 #define GetPixelAlpha(pixel) (QuantumRange-(pixel)->opacity)
37 #define GetPixelBlack(indexes) (*(indexes))
38 #define GetPixelBlue(pixel) ((pixel)->blue)
39 #define GetPixelCb(pixel) ((pixel)->green)
40 #define GetPixelCr(pixel) ((pixel)->blue)
41 #define GetPixelCyan(pixel) ((pixel)->red)
42 #define GetPixelGray(pixel) ((pixel)->red)
43 #define GetPixelGreen(pixel) ((pixel)->green)
44 #define GetPixelIndex(indexes) (*(indexes))
45 #define GetPixelL(pixel) ((pixel)->red)
46 #define GetPixelLabel(pixel) ((ssize_t) (pixel)->red)
47 #define GetPixelMagenta(pixel) ((pixel)->green)
48 #define GetPixelNext(pixel) ((pixel)+1)
49 #define GetPixelOpacity(pixel) ((pixel)->opacity)
50 #define GetPixelRed(pixel) ((pixel)->red)
51 #define GetPixelRGB(pixel,packet) \
53 (packet)->red=GetPixelRed((pixel)); \
54 (packet)->green=GetPixelGreen((pixel)); \
55 (packet)->blue=GetPixelBlue((pixel)); \
57 #define GetPixelRGBO(pixel,packet) \
59 (packet)->red=GetPixelRed((pixel)); \
60 (packet)->green=GetPixelGreen((pixel)); \
61 (packet)->blue=GetPixelBlue((pixel)); \
62 (packet)->opacity=GetPixelOpacity((pixel)); \
64 #define GetPixelY(pixel) ((pixel)->red)
65 #define GetPixelYellow(pixel) ((pixel)->blue)
66 #define SetPixela(pixel,value) ((pixel)->green=(Quantum) (value))
67 #define SetPixelAlpha(pixel,value) \
68 ((pixel)->opacity=(Quantum) (QuantumRange-(value)))
69 #define SetPixelb(pixel,value) ((pixel)->blue=(Quantum) (value))
70 #define SetPixelBlack(indexes,value) (*(indexes)=(Quantum) (value))
71 #define SetPixelBlue(pixel,value) ((pixel)->blue=(Quantum) (value))
72 #define SetPixelCb(pixel,value) ((pixel)->green=(Quantum) (value))
73 #define SetPixelCr(pixel,value) ((pixel)->blue=(Quantum) (value))
74 #define SetPixelCyan(pixel,value) ((pixel)->red=(Quantum) (value))
75 #define SetPixelGray(pixel,value) \
76 ((pixel)->red=(pixel)->green=(pixel)->blue=(Quantum) (value))
77 #define SetPixelGreen(pixel,value) ((pixel)->green=(Quantum) (value))
78 #define SetPixelIndex(indexes,value) (*(indexes)=(IndexPacket) (value))
79 #define SetPixelL(pixel,value) ((pixel)->red=(Quantum) (value))
80 #define SetPixelMagenta(pixel,value) ((pixel)->green=(Quantum) (value))
81 #define SetPixelOpacity(pixel,value) ((pixel)->opacity=(Quantum) (value))
82 #define SetPixelRed(pixel,value) ((pixel)->red=(Quantum) (value))
83 #define SetPixelRgb(pixel,packet) \
85 SetPixelRed(pixel,(packet)->red); \
86 SetPixelGreen(pixel,(packet)->green); \
87 SetPixelBlue(pixel,(packet)->blue); \
89 #define SetPixelRGBA(pixel,packet) \
91 SetPixelRed(pixel,(packet)->red); \
92 SetPixelGreen(pixel,(packet)->green); \
93 SetPixelBlue(pixel,(packet)->blue); \
94 SetPixelAlpha(pixel,(QuantumRange-(packet)->opacity)); \
96 #define SetPixelRGBO(pixel,packet) \
98 SetPixelRed(pixel,(packet)->red); \
99 SetPixelGreen(pixel,(packet)->green); \
100 SetPixelBlue(pixel,(packet)->blue); \
101 SetPixelOpacity(pixel,(packet)->opacity); \
103 #define SetPixelYellow(pixel,value) ((pixel)->blue=(Quantum) (value))
104 #define SetPixelY(pixel,value) ((pixel)->red=(Quantum) (value))
108 return(x < 0.0f ? -x : x);
116 return((
Quantum) QuantumRange);
117 #if !defined(MAGICKCORE_HDRI_SUPPORT)
118 return((
Quantum) (value+0.5f));
132 sign=x < 0.0 ? -1.0 : 1.0;
145 intensity=(
MagickRealType) (0.212656f*pixel->red+0.715158f*pixel->green+
146 0.072186f*pixel->blue);
158 intensity=(
MagickRealType) (0.212656f*pixel->red+0.715158f*pixel->green+
159 0.072186f*pixel->blue);
176 #if !defined(MAGICKCORE_HDRI_SUPPORT)
227 0.072186*pixel->
blue);
242 #if defined(__cplusplus) || defined(c_plusplus)
#define magick_restrict
Definition: MagickCore.h:41
MagickDoubleType MagickRealType
Definition: magick-type.h:125
static MagickRealType GetPixelLuma(const Image *magick_restrict image, const PixelPacket *magick_restrict pixel)
Definition: pixel-accessor.h:138
Definition: colorspace.h:40
Quantum blue
Definition: pixel.h:143
static MagickRealType GetPixelLuminance(const Image *magick_restrict image, const PixelPacket *magick_restrict pixel)
Definition: pixel-accessor.h:150
static MagickRealType AbsolutePixelValue(const MagickRealType x)
Definition: pixel-accessor.h:106
Quantum green
Definition: pixel.h:143
#define MagickEpsilon
Definition: magick-type.h:115
static Quantum ClampToQuantum(const MagickRealType quantum)
Definition: quantum.h:88
MagickExport MagickRealType DecodePixelGamma(const MagickRealType pixel)
Definition: pixel.c:255
static void SetPixelViaMagickPixel(const Image *magick_restrict image, const MagickPixelPacket *magick_restrict magick_pixel, PixelPacket *magick_restrict pixel)
Definition: pixel-accessor.h:231
MagickBooleanType
Definition: magick-type.h:198
static double PerceptibleReciprocal(const double x)
Definition: pixel-accessor.h:124
Quantum red
Definition: pixel.h:143
static MagickBooleanType IsPixelAtDepth(const Quantum pixel, const QuantumAny range)
Definition: pixel-accessor.h:168
static Quantum ClampPixel(const MagickRealType value)
Definition: pixel-accessor.h:111
Definition: magick-type.h:201
#define QuantumScale
Definition: magick-type.h:120
static Quantum PixelPacketIntensity(const PixelPacket *pixel)
Definition: pixel-accessor.h:219
static MagickBooleanType IsPixelGray(const PixelPacket *pixel)
Definition: pixel-accessor.h:186
Definition: magick-type.h:200
unsigned short Quantum
Definition: magick-type.h:85
static MagickBooleanType IsPixelMonochrome(const PixelPacket *pixel)
Definition: pixel-accessor.h:200
MagickSizeType QuantumAny
Definition: magick-type.h:157
#define QuantumRange
Definition: magick-type.h:86