MagickCore  7.0.10
Convert, Edit, Or Compose Bitmap Images
pixel.h
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1 /*
2  Copyright 1999-2020 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 methods.
17 */
18 #ifndef MAGICKCORE_PIXEL_H
19 #define MAGICKCORE_PIXEL_H
20 
21 #include "MagickCore/colorspace.h"
22 
23 #if defined(__cplusplus) || defined(c_plusplus)
24 extern "C" {
25 #endif
26 
27 #define MaxPixelChannels 32
28 #undef index
29 
30 /*
31  Pixel enum declarations.
32 */
33 typedef enum
34 {
35  UndefinedChannel = 0x0000,
36  RedChannel = 0x0001,
37  GrayChannel = 0x0001,
38  CyanChannel = 0x0001,
39  LChannel = 0x0001,
40  GreenChannel = 0x0002,
41  MagentaChannel = 0x0002,
42  aChannel = 0x0002,
43  BlueChannel = 0x0004,
44  bChannel = 0x0002,
45  YellowChannel = 0x0004,
46  BlackChannel = 0x0008,
47  AlphaChannel = 0x0010,
48  OpacityChannel = 0x0010,
49  IndexChannel = 0x0020, /* Color Index Table? */
50  ReadMaskChannel = 0x0040, /* Pixel is Not Readable? */
51  WriteMaskChannel = 0x0080, /* Pixel is Write Protected? */
52  MetaChannel = 0x0100, /* not used */
53  CompositeMaskChannel = 0x0200, /* SVG mask */
55  AllChannels = 0x7ffffff,
56  /*
57  Special purpose channel types.
58  FUTURE: are these needed any more - they are more like hacks
59  SyncChannels for example is NOT a real channel but a 'flag'
60  It really says -- "User has not defined channels"
61  Though it does have extra meaning in the "-auto-level" operator
62  */
63  TrueAlphaChannel = 0x0100, /* extract actual alpha channel from opacity */
64  RGBChannels = 0x0200, /* set alpha from grayscale mask in RGB */
65  GrayChannels = 0x0400,
66  SyncChannels = 0x20000, /* channels modified as a single unit */
68 } ChannelType; /* must correspond to PixelChannel */
69 
70 typedef enum
71 {
96  SyncPixelChannel = MaxPixelChannels+1 /* not a real channel */
97 } PixelChannel; /* must correspond to ChannelType */
98 
99 typedef enum
100 {
112 
113 typedef enum
114 {
116  AverageInterpolatePixel, /* Average 4 nearest neighbours */
117  Average9InterpolatePixel, /* Average 9 nearest neighbours */
118  Average16InterpolatePixel, /* Average 16 nearest neighbours */
119  BackgroundInterpolatePixel, /* Just return background color */
120  BilinearInterpolatePixel, /* Triangular filter interpolation */
121  BlendInterpolatePixel, /* blend of nearest 1, 2 or 4 pixels */
122  CatromInterpolatePixel, /* Catmull-Rom interpolation */
123  IntegerInterpolatePixel, /* Integer (floor) interpolation */
124  MeshInterpolatePixel, /* Triangular Mesh interpolation */
125  NearestInterpolatePixel, /* Nearest Neighbour Only */
126  SplineInterpolatePixel /* Cubic Spline (blurred) interpolation */
128 
129 typedef enum
130 {
131  UndefinedPixelMask = 0x000000,
132  ReadPixelMask = 0x000001,
133  WritePixelMask = 0x000002,
135 } PixelMask;
136 
137 typedef enum
138 {
140  CopyPixelTrait = 0x000001,
141  UpdatePixelTrait = 0x000002,
142  BlendPixelTrait = 0x000004
143 } PixelTrait;
144 
145 typedef enum
146 {
155 } StorageType;
156 
157 /*
158  Pixel typedef declarations.
159 */
160 typedef struct _PixelChannelMap
161 {
164 
165  PixelTrait
167 
168  ssize_t
171 
172 typedef struct _PixelInfo
173 {
174  ClassType
176 
179 
180  PixelTrait
182 
183  double
185 
186  size_t
188 
191 
194  green,
195  blue,
196  black,
197  alpha,
198  index;
199 } PixelInfo;
200 
201 typedef struct _PixelPacket
202 {
203  unsigned int
205  green,
206  blue,
207  alpha,
208  black;
209 } PixelPacket;
210 
211 typedef struct _CacheView
212  CacheView_;
213 
214 /*
215  Pixel method declarations.
216 */
219 
221  ExportImagePixels(const Image *,const ssize_t,const ssize_t,const size_t,
222  const size_t,const char *,const StorageType,void *,ExceptionInfo *),
223  ImportImagePixels(Image *,const ssize_t,const ssize_t,const size_t,
224  const size_t,const char *,const StorageType,const void *,ExceptionInfo *),
226  const PixelChannel,const PixelInterpolateMethod,const double,const double,
227  double *,ExceptionInfo *),
229  const Image * magick_restrict,const PixelInterpolateMethod,const double,
230  const double,Quantum *,ExceptionInfo *),
231  InterpolatePixelInfo(const Image *,const CacheView_ *,
232  const PixelInterpolateMethod,const double,const double,PixelInfo *,
233  ExceptionInfo *),
234  IsFuzzyEquivalencePixel(const Image *,const Quantum *,const Image *,
235  const Quantum *) magick_attribute((__pure__)),
237  magick_attribute((__pure__)),
238  SetPixelMetaChannels(Image *,const size_t,ExceptionInfo *);
239 
245 
247  *AcquirePixelChannelMap(void),
250 
251 extern MagickExport PixelInfo
252  *ClonePixelInfo(const PixelInfo *);
253 
257 
258 extern MagickExport void
260  GetPixelInfo(const Image *,PixelInfo *),
262 
263 #if defined(__cplusplus) || defined(c_plusplus)
264 }
265 #endif
266 
267 #endif
PixelChannel channel
Definition: pixel.h:163
#define magick_restrict
Definition: MagickCore.h:41
MagickExport MagickBooleanType InterpolatePixelChannel(const Image *magick_restrict, const CacheView_ *, const PixelChannel, const PixelInterpolateMethod, const double, const double, double *, ExceptionInfo *)
MagickDoubleType MagickRealType
Definition: magick-type.h:124
Definition: pixel.h:80
Definition: pixel.h:118
Definition: pixel.h:41
Definition: pixel.h:117
Definition: pixel.h:45
Definition: pixel.h:108
double fuzz
Definition: pixel.h:184
Definition: pixel.h:88
Definition: pixel.h:87
Definition: pixel.h:122
Definition: pixel.h:35
Definition: pixel.h:104
unsigned int green
Definition: pixel.h:204
PixelTrait alpha_trait
Definition: pixel.h:181
Definition: pixel.h:139
MagickExport MagickBooleanType IsFuzzyEquivalencePixel(const Image *, const Quantum *, const Image *, const Quantum *) magick_attribute((__pure__))
Definition: pixel.h:43
PixelInterpolateMethod
Definition: pixel.h:113
MagickExport MagickBooleanType ImportImagePixels(Image *, const ssize_t, const ssize_t, const size_t, const size_t, const char *, const StorageType, const void *, ExceptionInfo *)
Definition: pixel.h:95
Definition: pixel.h:119
MagickExport MagickRealType GetPixelIntensity(const Image *magick_restrict, const Quantum *magick_restrict) magick_hot_spot
Definition: exception.h:101
Definition: pixel.h:93
StorageType
Definition: pixel.h:145
PixelIntensityMethod
Definition: pixel.h:99
Definition: pixel.h:49
Definition: pixel.h:46
MagickRealType red
Definition: pixel.h:193
Definition: pixel.h:65
Definition: pixel.h:79
ClassType storage_class
Definition: pixel.h:175
MagickSizeType count
Definition: pixel.h:190
Definition: cache-view.c:65
Definition: pixel.h:92
unsigned int blue
Definition: pixel.h:204
Definition: pixel.h:201
Definition: pixel.h:44
MagickRealType alpha
Definition: pixel.h:193
Definition: pixel.h:154
Definition: pixel.h:74
Definition: pixel.h:110
Definition: pixel.h:78
MagickExport MagickBooleanType IsFuzzyEquivalencePixelInfo(const PixelInfo *, const PixelInfo *) magick_attribute((__pure__))
ssize_t offset
Definition: pixel.h:169
Definition: pixel.h:133
Definition: image.h:151
#define magick_attribute(x)
Definition: method-attribute.h:104
Definition: pixel.h:147
Definition: pixel.h:140
Definition: pixel.h:72
MagickExport MagickRealType DecodePixelGamma(const MagickRealType) magick_hot_spot
Definition: pixel.h:37
Definition: pixel.h:53
Definition: pixel.h:132
MagickBooleanType
Definition: magick-type.h:169
ClassType
Definition: magick-type.h:162
Definition: pixel.h:121
unsigned int black
Definition: pixel.h:204
Definition: pixel.h:51
Definition: pixel.h:91
Definition: pixel.h:64
Definition: pixel.h:160
struct _PixelInfo PixelInfo
Definition: pixel.h:103
Definition: pixel.h:102
Definition: pixel.h:77
Definition: pixel.h:125
#define magick_hot_spot
Definition: method-attribute.h:122
MagickExport PixelChannelMap * DestroyPixelChannelMap(PixelChannelMap *)
Definition: pixel.c:350
Definition: pixel.h:47
struct _PixelChannelMap PixelChannelMap
size_t MagickSizeType
Definition: magick-type.h:134
Definition: pixel.h:131
Definition: pixel.h:85
MagickRealType blue
Definition: pixel.h:193
Definition: pixel.h:141
Definition: pixel.h:123
Definition: pixel.h:86
Definition: pixel.h:76
Definition: pixel.h:55
Definition: pixel.h:83
Definition: pixel.h:149
Definition: pixel.h:66
unsigned int alpha
Definition: pixel.h:204
Definition: pixel.h:38
ChannelType
Definition: pixel.h:33
Definition: pixel.h:54
Definition: pixel.h:50
Definition: pixel.h:81
MagickExport void ConformPixelInfo(Image *, const PixelInfo *, PixelInfo *, ExceptionInfo *)
PixelChannel
Definition: pixel.h:70
Definition: pixel.h:150
size_t depth
Definition: pixel.h:187
Definition: pixel.h:116
MagickRealType index
Definition: pixel.h:193
Definition: pixel.h:90
MagickExport MagickBooleanType InterpolatePixelInfo(const Image *, const CacheView_ *, const PixelInterpolateMethod, const double, const double, PixelInfo *, ExceptionInfo *)
Definition: pixel.h:101
Definition: pixel.h:148
struct _PixelPacket PixelPacket
Definition: pixel.h:126
Definition: pixel.h:134
Definition: pixel.h:40
unsigned short Quantum
Definition: magick-type.h:86
unsigned int red
Definition: pixel.h:204
MagickRealType black
Definition: pixel.h:193
Definition: pixel.h:82
Definition: pixel.h:94
Definition: pixel.h:42
Definition: pixel.h:96
Definition: pixel.h:39
Definition: pixel.h:63
Definition: pixel.h:153
ColorspaceType
Definition: colorspace.h:25
Definition: pixel.h:73
Definition: pixel.h:89
#define MaxPixelChannels
Definition: pixel.h:27
MagickExport PixelChannelMap * AcquirePixelChannelMap(void)
Definition: pixel.h:115
MagickExport void GetPixelInfo(const Image *, PixelInfo *)
MagickExport void InitializePixelChannelMap(Image *)
Definition: pixel.c:4334
MagickRealType green
Definition: pixel.h:193
Definition: pixel.h:152
Definition: pixel.h:151
Definition: pixel.h:67
MagickExport MagickRealType GetPixelInfoIntensity(const Image *magick_restrict, const PixelInfo *magick_restrict) magick_hot_spot
Definition: pixel.h:36
Definition: pixel.h:124
#define MagickExport
Definition: method-attribute.h:80
Definition: pixel.h:105
Definition: pixel.h:52
Definition: pixel.h:48
PixelTrait traits
Definition: pixel.h:166
ColorspaceType colorspace
Definition: pixel.h:178
Definition: pixel.h:84
PixelMask
Definition: pixel.h:129
MagickExport MagickBooleanType InterpolatePixelChannels(const Image *magick_restrict, const CacheView_ *, const Image *magick_restrict, const PixelInterpolateMethod, const double, const double, Quantum *, ExceptionInfo *)
Definition: pixel.h:172
PixelTrait
Definition: pixel.h:137
MagickExport ChannelType SetPixelChannelMask(Image *, const ChannelType)
Definition: pixel.c:6280
Definition: pixel.h:120
MagickExport MagickBooleanType SetPixelMetaChannels(Image *, const size_t, ExceptionInfo *)
Definition: pixel.c:6364
MagickExport MagickBooleanType ExportImagePixels(const Image *, const ssize_t, const ssize_t, const size_t, const size_t, const char *, const StorageType, void *, ExceptionInfo *)
Definition: pixel.h:142
MagickExport PixelChannelMap * ClonePixelChannelMap(PixelChannelMap *)
Definition: pixel.h:106
Definition: pixel.h:75
MagickExport PixelInfo * ClonePixelInfo(const PixelInfo *)
Definition: pixel.c:170
MagickExport MagickRealType EncodePixelGamma(const MagickRealType) magick_hot_spot
Definition: pixel.c:446