MagickCore  6.9.11-60
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
@ CMYKColorspace
Definition: colorspace.h:39
MagickDoubleType MagickRealType
Definition: magick-type.h:129
#define QuantumRange
Definition: magick-type.h:90
#define MagickEpsilon
Definition: magick-type.h:119
@ PseudoClass
Definition: magick-type.h:199
MagickBooleanType
Definition: magick-type.h:203
@ MagickFalse
Definition: magick-type.h:204
@ MagickTrue
Definition: magick-type.h:205
#define GetPixelBlue(pixel)
Definition: pixel-accessor.h:38
#define SetPixelRed(pixel, value)
Definition: pixel-accessor.h:82
#define SetPixelIndex(indexes, value)
Definition: pixel-accessor.h:78
#define SetPixelBlue(pixel, value)
Definition: pixel-accessor.h:71
#define GetPixelIndex(indexes)
Definition: pixel-accessor.h:44
#define GetPixelRed(pixel)
Definition: pixel-accessor.h:50
#define SetPixelOpacity(pixel, value)
Definition: pixel-accessor.h:81
#define SetPixelGreen(pixel, value)
Definition: pixel-accessor.h:77
#define GetPixelGreen(pixel)
Definition: pixel-accessor.h:43
#define GetPixelOpacity(pixel)
Definition: pixel-accessor.h:49
static MagickBooleanType IsMonochromePixel(const PixelPacket *pixel)
Definition: pixel-private.h:53
static void SetMagickPixelPacket(const Image *image, const PixelPacket *color, const IndexPacket *index, MagickPixelPacket *pixel)
Definition: pixel-private.h:78
static void SetMagickPixelPacketBias(const Image *image, MagickPixelPacket *pixel)
Definition: pixel-private.h:90
static void SetPixelPacket(const Image *image, const MagickPixelPacket *pixel, PixelPacket *color, IndexPacket *index)
Definition: pixel-private.h:103
static MagickBooleanType IsGrayPixel(const PixelPacket *pixel)
Definition: pixel-private.h:32
Quantum IndexPacket
Definition: pixel.h:129
static Quantum ClampToQuantum(const MagickRealType quantum)
Definition: quantum.h:88
Definition: image.h:153
ColorspaceType colorspace
Definition: image.h:158
ClassType storage_class
Definition: image.h:155
double bias
Definition: image.h:218
Definition: pixel.h:105
MagickRealType blue
Definition: pixel.h:124
MagickRealType index
Definition: pixel.h:126
MagickRealType opacity
Definition: pixel.h:125
MagickRealType green
Definition: pixel.h:123
MagickRealType red
Definition: pixel.h:122
Definition: pixel.h:132