MagickCore  6.9.10
Convert, Edit, Or Compose Bitmap Images
pixel-private.h
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1 /*
2  Copyright 1999-2019 ImageMagick Studio LLC, a non-profit organization
3  dedicated to making software imaging solutions freely available.
4 
5  You may not use this file except in compliance with the License.
6  obtain a copy of the License at
7 
8  https://imagemagick.org/script/license.php
9 
10  Unless required by applicable law or agreed to in writing, software
11  distributed under the License is distributed on an "AS IS" BASIS,
12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  See the License for the specific language governing permissions and
14  limitations under the License.
15 
16  MagickCore image pixel private methods.
17 */
18 #ifndef MAGICKCORE_PIXEL_PRIVATE_H
19 #define MAGICKCORE_PIXEL_PRIVATE_H
20 
21 #include "magick/image.h"
22 #include "magick/color.h"
23 #include "magick/image-private.h"
24 #include "magick/memory_.h"
25 #include "magick/pixel-accessor.h"
26 #include "magick/quantum-private.h"
27 
28 #if defined(__cplusplus) || defined(c_plusplus)
29 extern "C" {
30 #endif
31 
32 static inline MagickBooleanType IsGrayPixel(const PixelPacket *pixel)
33 {
34 #if !defined(MAGICKCORE_HDRI_SUPPORT)
35  if ((GetPixelRed(pixel) == GetPixelGreen(pixel)) &&
36  (GetPixelGreen(pixel) == GetPixelBlue(pixel)))
37  return(MagickTrue);
38 #else
39  {
40  double
41  alpha,
42  beta;
43 
44  alpha=GetPixelRed(pixel)-(double) GetPixelGreen(pixel);
45  beta=GetPixelGreen(pixel)-(double) GetPixelBlue(pixel);
46  if ((fabs(alpha) <= MagickEpsilon) && (fabs(beta) <= MagickEpsilon))
47  return(MagickTrue);
48  }
49 #endif
50  return(MagickFalse);
51 }
52 
53 static inline MagickBooleanType IsMonochromePixel(const PixelPacket *pixel)
54 {
55 #if !defined(MAGICKCORE_HDRI_SUPPORT)
56  if (((GetPixelRed(pixel) == 0) ||
57  (GetPixelRed(pixel) == QuantumRange)) &&
58  (GetPixelRed(pixel) == GetPixelGreen(pixel)) &&
59  (GetPixelGreen(pixel) == GetPixelBlue(pixel)))
60  return(MagickTrue);
61 #else
62  {
63  double
64  alpha,
65  beta;
66 
67  alpha=GetPixelRed(pixel)-(double) GetPixelGreen(pixel);
68  beta=GetPixelGreen(pixel)-(double) GetPixelBlue(pixel);
69  if (((fabs((double) GetPixelRed(pixel)) <= MagickEpsilon) ||
70  (fabs((double) GetPixelRed(pixel)-QuantumRange) <= MagickEpsilon)) &&
71  (fabs(alpha) <= MagickEpsilon) && (fabs(beta) <= MagickEpsilon))
72  return(MagickTrue);
73  }
74 #endif
75  return(MagickFalse);
76 }
77 
78 static inline void SetMagickPixelPacket(const Image *image,
79  const PixelPacket *color,const IndexPacket *index,MagickPixelPacket *pixel)
80 {
81  pixel->red=(MagickRealType) GetPixelRed(color);
82  pixel->green=(MagickRealType) GetPixelGreen(color);
83  pixel->blue=(MagickRealType) GetPixelBlue(color);
84  pixel->opacity=(MagickRealType) GetPixelOpacity(color);
85  if ((image->colorspace == CMYKColorspace) &&
86  (index != (const IndexPacket *) NULL))
87  pixel->index=(MagickRealType) GetPixelIndex(index);
88 }
89 
90 static inline void SetMagickPixelPacketBias(const Image *image,
91  MagickPixelPacket *pixel)
92 {
93  /*
94  Obsoleted by MorphologyApply().
95  */
96  pixel->red=image->bias;
97  pixel->green=image->bias;
98  pixel->blue=image->bias;
99  pixel->opacity=image->bias;
100  pixel->index=image->bias;
101 }
102 
103 static inline void SetPixelPacket(const Image *image,
104  const MagickPixelPacket *pixel,PixelPacket *color,IndexPacket *index)
105 {
106  SetPixelRed(color,ClampToQuantum(pixel->red));
107  SetPixelGreen(color,ClampToQuantum(pixel->green));
108  SetPixelBlue(color,ClampToQuantum(pixel->blue));
109  SetPixelOpacity(color,ClampToQuantum(pixel->opacity));
110  if ((image->colorspace == CMYKColorspace) ||
111  (image->storage_class == PseudoClass))
112  SetPixelIndex(index,ClampToQuantum(pixel->index));
113 }
114 
115 #if defined(__cplusplus) || defined(c_plusplus)
116 }
117 #endif
118 
119 #endif
_Image::colorspace
ColorspaceType colorspace
Definition: image.h:158
_MagickPixelPacket::red
MagickRealType red
Definition: pixel.h:122
SetPixelOpacity
#define SetPixelOpacity(pixel, value)
Definition: pixel-accessor.h:81
SetPixelRed
#define SetPixelRed(pixel, value)
Definition: pixel-accessor.h:82
quantum-private.h
image-private.h
SetPixelGreen
#define SetPixelGreen(pixel, value)
Definition: pixel-accessor.h:77
IndexPacket
Quantum IndexPacket
Definition: pixel.h:129
GetPixelRed
#define GetPixelRed(pixel)
Definition: pixel-accessor.h:50
IsMonochromePixel
static MagickBooleanType IsMonochromePixel(const PixelPacket *pixel)
Definition: pixel-private.h:53
MagickTrue
@ MagickTrue
Definition: magick-type.h:194
_MagickPixelPacket::index
MagickRealType index
Definition: pixel.h:126
GetPixelIndex
#define GetPixelIndex(indexes)
Definition: pixel-accessor.h:44
_MagickPixelPacket::blue
MagickRealType blue
Definition: pixel.h:124
_Image
Definition: image.h:152
IsGrayPixel
static MagickBooleanType IsGrayPixel(const PixelPacket *pixel)
Definition: pixel-private.h:32
_MagickPixelPacket
Definition: pixel.h:104
SetPixelBlue
#define SetPixelBlue(pixel, value)
Definition: pixel-accessor.h:71
ClampToQuantum
static Quantum ClampToQuantum(const MagickRealType value)
Definition: quantum.h:87
MagickFalse
@ MagickFalse
Definition: magick-type.h:193
GetPixelBlue
#define GetPixelBlue(pixel)
Definition: pixel-accessor.h:38
image.h
GetPixelOpacity
#define GetPixelOpacity(pixel)
Definition: pixel-accessor.h:49
QuantumRange
#define QuantumRange
Definition: magick-type.h:86
CMYKColorspace
@ CMYKColorspace
Definition: colorspace.h:39
_Image::bias
double bias
Definition: image.h:218
SetMagickPixelPacket
static void SetMagickPixelPacket(const Image *image, const PixelPacket *color, const IndexPacket *index, MagickPixelPacket *pixel)
Definition: pixel-private.h:78
MagickBooleanType
MagickBooleanType
Definition: magick-type.h:191
SetPixelIndex
#define SetPixelIndex(indexes, value)
Definition: pixel-accessor.h:78
_Image::storage_class
ClassType storage_class
Definition: image.h:155
MagickRealType
MagickDoubleType MagickRealType
Definition: magick-type.h:125
PseudoClass
@ PseudoClass
Definition: magick-type.h:188
memory_.h
color.h
MagickEpsilon
#define MagickEpsilon
Definition: magick-type.h:115
pixel-accessor.h
GetPixelGreen
#define GetPixelGreen(pixel)
Definition: pixel-accessor.h:43
SetMagickPixelPacketBias
static void SetMagickPixelPacketBias(const Image *image, MagickPixelPacket *pixel)
Definition: pixel-private.h:90
_MagickPixelPacket::opacity
MagickRealType opacity
Definition: pixel.h:125
_MagickPixelPacket::green
MagickRealType green
Definition: pixel.h:123
_PixelPacket
Definition: pixel.h:131
SetPixelPacket
static void SetPixelPacket(const Image *image, const MagickPixelPacket *pixel, PixelPacket *color, IndexPacket *index)
Definition: pixel-private.h:103