MagickCore 7.1.1-47
Convert, Edit, Or Compose Bitmap Images
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image-private.h
1/*
2 Copyright @ 1999 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 private methods.
17*/
18#ifndef MAGICKCORE_IMAGE_PRIVATE_H
19#define MAGICKCORE_IMAGE_PRIVATE_H
20
21#if defined(__cplusplus) || defined(c_plusplus)
22extern "C" {
23#endif
24
25#define MagickMax(x,y) (((x) > (y)) ? (x) : (y))
26#define MagickMin(x,y) (((x) < (y)) ? (x) : (y))
27
28#include "MagickCore/pixel-accessor.h"
29#include "MagickCore/quantum-private.h"
30
31#define BackgroundColor "#ffffff" /* white */
32#define BackgroundColorRGBA QuantumRange,QuantumRange,QuantumRange,OpaqueAlpha
33#define BorderColor "#dfdfdf" /* gray */
34#define BorderColorRGBA ScaleShortToQuantum(0xdfdf),\
35 ScaleShortToQuantum(0xdfdf),ScaleShortToQuantum(0xdfdf),OpaqueAlpha
36#define DefaultResolution 72.0
37#define DefaultTileFrame "15x15+3+3"
38#define DefaultTileGeometry "120x120+4+3>"
39#define DefaultTileLabel "%f\n%G\n%b"
40#define ForegroundColor "#000" /* black */
41#define ForegroundColorRGBA 0,0,0,OpaqueAlpha
42#define LoadImagesTag "Load/Images"
43#define LoadImageTag "Load/Image"
44#define Magick2PI 6.28318530717958647692528676655900576839433879875020
45#define MagickAbsoluteValue(x) ((x) < 0 ? -(x) : (x))
46#define MagickPHI 1.61803398874989484820458683436563811772030917980576
47#define MagickPI2 1.57079632679489661923132169163975144209858469968755
48#define MagickPI 3.1415926535897932384626433832795028841971693993751058209749445923078164062
49#define MagickSQ1_2 0.70710678118654752440084436210484903928483593768847
50#define MagickSQ2 1.41421356237309504880168872420969807856967187537695
51#define MagickSQ2PI 2.50662827463100024161235523934010416269302368164062
52#define MAGICK_SIZE_MAX (SIZE_MAX)
53#define MAGICK_SSIZE_MAX (SSIZE_MAX)
54#define MAGICK_SSIZE_MIN (-SSIZE_MAX-1)
55#define MAGICK_ULONG_MAX (ULONG_MAX)
56#define MatteColor "#bdbdbd" /* gray */
57#define MatteColorRGBA ScaleShortToQuantum(0xbdbd),\
58 ScaleShortToQuantum(0xbdbd),ScaleShortToQuantum(0xbdbd),OpaqueAlpha
59#define PSDensityGeometry "72.0x72.0"
60#define PSPageGeometry "612x792"
61#define SaveImagesTag "Save/Images"
62#define SaveImageTag "Save/Image"
63#define TransparentColor "#00000000" /* transparent black */
64#define TransparentColorRGBA (Quantum) 0,(Quantum) 0,(Quantum) 0,TransparentAlpha
65#define UndefinedCompressionQuality 0UL
66#define UndefinedTicksPerSecond 100L
67
68static inline ssize_t CastDoubleToLong(const double x)
69{
70 double
71 value;
72
73 if (IsNaN(x) != 0)
74 {
75 errno=ERANGE;
76 return(0);
77 }
78 if (x < 0.0)
79 {
80 value=ceil(x);
81 if (value < ((double) MAGICK_SSIZE_MIN))
82 {
83 errno=ERANGE;
84 return((ssize_t) MAGICK_SSIZE_MIN);
85 }
86 }
87 else
88 {
89 value=floor(x);
90 if (value > ((double) MAGICK_SSIZE_MAX))
91 {
92 errno=ERANGE;
93 return((ssize_t) MAGICK_SSIZE_MAX);
94 }
95 }
96 return((ssize_t) value);
97}
98
99static inline QuantumAny CastDoubleToQuantumAny(const double x)
100{
101 if (IsNaN(x) != 0)
102 {
103 errno=ERANGE;
104 return(0);
105 }
106 if (x > ((double) ((QuantumAny) ~0)))
107 {
108 errno=ERANGE;
109 return((QuantumAny) ~0);
110 }
111 if (x < 0.0)
112 {
113 errno=ERANGE;
114 return((QuantumAny) 0);
115 }
116 return((QuantumAny) (x+0.5));
117}
118
119static inline size_t CastDoubleToUnsigned(const double x)
120{
121 double
122 value;
123
124 if (IsNaN(x) != 0)
125 {
126 errno=ERANGE;
127 return(0);
128 }
129 value=floor(x);
130 if (value >= ((double) MAGICK_SIZE_MAX))
131 {
132 errno=ERANGE;
133 return((size_t) MAGICK_SIZE_MAX);
134 }
135 if (value < 0.0)
136 {
137 errno=ERANGE;
138 return(0);
139 }
140 return((size_t) value);
141}
142
143static inline double DegreesToRadians(const double degrees)
144{
145 return((double) (MagickPI*degrees/180.0));
146}
147
148static inline size_t GetImageChannels(const Image *image)
149{
150 ssize_t
151 i;
152
153 size_t
154 channels;
155
156 channels=0;
157 for (i=0; i < (ssize_t) GetPixelChannels(image); i++)
158 {
159 PixelChannel channel = GetPixelChannelChannel(image,i);
160 PixelTrait traits = GetPixelChannelTraits(image,channel);
161 if ((traits & UpdatePixelTrait) != 0)
162 channels++;
163 }
164 return(channels == 0 ? (size_t) 1 : channels);
165}
166
167static inline double RadiansToDegrees(const double radians)
168{
169 return((double) (180.0*radians/MagickPI));
170}
171
172static inline unsigned char ScaleColor5to8(const unsigned int color)
173{
174 return((unsigned char) (((color) << 3) | ((color) >> 2)));
175}
176
177static inline unsigned char ScaleColor6to8(const unsigned int color)
178{
179 return((unsigned char) (((color) << 2) | ((color) >> 4)));
180}
181
182static inline unsigned int ScaleColor8to5(const unsigned char color)
183{
184 return((unsigned int) (((color) & ~0x07) >> 3));
185}
186
187static inline unsigned int ScaleColor8to6(const unsigned char color)
188{
189 return((unsigned int) (((color) & ~0x03) >> 2));
190}
191
192#if defined(__cplusplus) || defined(c_plusplus)
193}
194#endif
195
196#endif