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);
174 #if !defined(MAGICKCORE_HDRI_SUPPORT) 225 0.072186*pixel->
blue);
240 #if defined(__cplusplus) || defined(c_plusplus) #define magick_restrict
Definition: MagickCore.h:41
MagickDoubleType MagickRealType
Definition: magick-type.h:123
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
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:229
MagickBooleanType
Definition: magick-type.h:189
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:192
#define QuantumScale
Definition: magick-type.h:118
static Quantum PixelPacketIntensity(const PixelPacket *pixel)
Definition: pixel-accessor.h:217
static MagickBooleanType IsPixelGray(const PixelPacket *pixel)
Definition: pixel-accessor.h:184
static Quantum ClampToQuantum(const MagickRealType value)
Definition: quantum.h:87
Definition: magick-type.h:191
unsigned short Quantum
Definition: magick-type.h:85
static MagickBooleanType IsPixelMonochrome(const PixelPacket *pixel)
Definition: pixel-accessor.h:198
MagickSizeType QuantumAny
Definition: magick-type.h:148
#define QuantumRange
Definition: magick-type.h:86