MagickCore  6.9.12-43
Convert, Edit, Or Compose Bitmap Images
pixel-private.h
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1 /*
2  Copyright 1999-2021 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. You may
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
MagickDoubleType MagickRealType
Definition: magick-type.h:125
MagickRealType opacity
Definition: pixel.h:122
#define GetPixelBlue(pixel)
Definition: pixel-accessor.h:38
#define GetPixelOpacity(pixel)
Definition: pixel-accessor.h:49
#define GetPixelGreen(pixel)
Definition: pixel-accessor.h:43
Definition: pixel.h:131
double bias
Definition: image.h:218
#define MagickEpsilon
Definition: magick-type.h:115
ClassType storage_class
Definition: image.h:155
static Quantum ClampToQuantum(const MagickRealType quantum)
Definition: quantum.h:88
#define GetPixelRed(pixel)
Definition: pixel-accessor.h:50
Definition: image.h:152
#define SetPixelGreen(pixel, value)
Definition: pixel-accessor.h:77
MagickBooleanType
Definition: magick-type.h:198
static MagickBooleanType IsMonochromePixel(const PixelPacket *pixel)
Definition: pixel-private.h:53
Definition: pixel.h:104
Definition: magick-type.h:201
static MagickBooleanType IsGrayPixel(const PixelPacket *pixel)
Definition: pixel-private.h:32
#define SetPixelRed(pixel, value)
Definition: pixel-accessor.h:82
Definition: colorspace.h:39
#define GetPixelIndex(indexes)
Definition: pixel-accessor.h:44
#define SetPixelOpacity(pixel, value)
Definition: pixel-accessor.h:81
static void SetMagickPixelPacket(const Image *image, const PixelPacket *color, const IndexPacket *index, MagickPixelPacket *pixel)
Definition: pixel-private.h:78
MagickRealType red
Definition: pixel.h:122
Definition: magick-type.h:200
MagickRealType green
Definition: pixel.h:122
#define SetPixelIndex(indexes, value)
Definition: pixel-accessor.h:78
static void SetPixelPacket(const Image *image, const MagickPixelPacket *pixel, PixelPacket *color, IndexPacket *index)
Definition: pixel-private.h:103
MagickRealType blue
Definition: pixel.h:122
static void SetMagickPixelPacketBias(const Image *image, MagickPixelPacket *pixel)
Definition: pixel-private.h:90
Definition: magick-type.h:195
Quantum IndexPacket
Definition: pixel.h:129
#define SetPixelBlue(pixel, value)
Definition: pixel-accessor.h:71
MagickRealType index
Definition: pixel.h:122
ColorspaceType colorspace
Definition: image.h:158
#define QuantumRange
Definition: magick-type.h:86