MagickCore 6.9.11-60
Convert, Edit, Or Compose Bitmap Images
image-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 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 BackgroundColor "#ffffff" /* white */
26#define BorderColor "#dfdfdf" /* gray */
27#define DefaultResolution 72.0
28#define DefaultTileFrame "15x15+3+3"
29#define DefaultTileGeometry "120x120+4+3>"
30#define DefaultTileLabel "%f\n%G\n%b"
31#define ForegroundColor "#000" /* black */
32#define LoadImagesTag "Load/Images"
33#define LoadImageTag "Load/Image"
34#define Magick2PI 6.28318530717958647692528676655900576839433879875020
35#define MagickAbsoluteValue(x) ((x) < 0 ? -(x) : (x))
36#define MagickMax(x,y) (((x) > (y)) ? (x) : (y))
37#define MagickMin(x,y) (((x) < (y)) ? (x) : (y))
38#define MagickPHI 1.61803398874989484820458683436563811772030917980576
39#define MagickPI2 1.57079632679489661923132169163975144209858469968755
40#define MagickPI 3.14159265358979323846264338327950288419716939937510
41#define MagickSQ1_2 0.70710678118654752440084436210484903928483593768847
42#define MagickSQ2 1.41421356237309504880168872420969807856967187537695
43#define MagickSQ2PI 2.50662827463100024161235523934010416269302368164062
44#define MAGICK_SIZE_MAX (SIZE_MAX)
45#define MAGICK_SSIZE_MAX (SSIZE_MAX)
46#define MAGICK_SSIZE_MIN (-(SSIZE_MAX)-1)
47#define MatteColor "#bdbdbd" /* gray */
48#define PSDensityGeometry "72.0x72.0"
49#define PSPageGeometry "612x792"
50#define SaveImagesTag "Save/Images"
51#define SaveImageTag "Save/Image"
52#define TransparentColor "#00000000" /* transparent black */
53#define UndefinedCompressionQuality 0UL
54#define UndefinedTicksPerSecond 100L
55
56static inline size_t CastDoubleToLong(const double x)
57{
58 double
59 value;
60
61 if (IsNaN(x) != 0)
62 {
63 errno=ERANGE;
64 return(0);
65 }
66 if (x < 0.0)
67 {
68 value=ceil(x);
69 if (value < ((double) MAGICK_SSIZE_MIN))
70 {
71 errno=ERANGE;
72 return((ssize_t) MAGICK_SSIZE_MIN);
73 }
74 }
75 else
76 {
77 value=floor(x);
78 if (value > ((double) MAGICK_SSIZE_MAX))
79 {
80 errno=ERANGE;
81 return((ssize_t) MAGICK_SSIZE_MAX);
82 }
83 }
84 return((ssize_t) value);
85}
86
87static inline QuantumAny CastDoubleToQuantumAny(const double x)
88{
89 if (IsNaN(x) != 0)
90 return(0);
91 if (x > ((double) ((QuantumAny) ~0)))
92 return((QuantumAny) ~0);
93 if (x < 0.0)
94 return(0.0);
95 return((QuantumAny) (x+0.5));
96}
97
98static inline size_t CastDoubleToUnsigned(const double x)
99{
100 double
101 value;
102
103 if (IsNaN(x) != 0)
104 {
105 errno=ERANGE;
106 return(0);
107 }
108 value=floor(x);
109 if (value >= ((double) MAGICK_SIZE_MAX))
110 {
111 errno=ERANGE;
112 return((size_t) MAGICK_SIZE_MAX);
113 }
114 if (value < 0.0)
115 {
116 errno=ERANGE;
117 return(0);
118 }
119 return((size_t) value);
120}
121
122static inline double DegreesToRadians(const double degrees)
123{
124 return((double) (MagickPI*degrees/180.0));
125}
126
128{
129 return((MagickRealType) (180.0*radians/MagickPI));
130}
131
132static inline unsigned char ScaleColor5to8(const unsigned int color)
133{
134 return((unsigned char) (((color) << 3) | ((color) >> 2)));
135}
136
137static inline unsigned char ScaleColor6to8(const unsigned int color)
138{
139 return((unsigned char) (((color) << 2) | ((color) >> 4)));
140}
141
142static inline unsigned int ScaleColor8to5(const unsigned char color)
143{
144 return((unsigned int) (((color) & ~0x07) >> 3));
145}
146
147static inline unsigned int ScaleColor8to6(const unsigned char color)
148{
149 return((unsigned int) (((color) & ~0x03) >> 2));
150}
151
152#if defined(__cplusplus) || defined(c_plusplus)
153}
154#endif
155
156#endif
static size_t CastDoubleToLong(const double x)
Definition: image-private.h:56
static unsigned int ScaleColor8to6(const unsigned char color)
Definition: image-private.h:147
static unsigned char ScaleColor6to8(const unsigned int color)
Definition: image-private.h:137
#define MAGICK_SSIZE_MAX
Definition: image-private.h:45
static unsigned int ScaleColor8to5(const unsigned char color)
Definition: image-private.h:142
static MagickRealType RadiansToDegrees(const MagickRealType radians)
Definition: image-private.h:127
static size_t CastDoubleToUnsigned(const double x)
Definition: image-private.h:98
static double DegreesToRadians(const double degrees)
Definition: image-private.h:122
static QuantumAny CastDoubleToQuantumAny(const double x)
Definition: image-private.h:87
#define MAGICK_SSIZE_MIN
Definition: image-private.h:46
static unsigned char ScaleColor5to8(const unsigned int color)
Definition: image-private.h:132
#define MagickPI
Definition: image-private.h:40
#define MAGICK_SIZE_MAX
Definition: image-private.h:44
MagickDoubleType MagickRealType
Definition: magick-type.h:129
MagickSizeType QuantumAny
Definition: magick-type.h:161
#define IsNaN(a)
Definition: magick-type.h:225