MagickCore  6.9.13-9
Convert, Edit, Or Compose Bitmap Images
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 #define MagickMax(x,y) (((x) > (y)) ? (x) : (y))
22 #define MagickMin(x,y) (((x) < (y)) ? (x) : (y))
23 
24 #include "magick/quantum-private.h"
25 
26 #define BackgroundColor "#ffffff" /* white */
27 #if defined(__cplusplus) || defined(c_plusplus)
28 extern "C" {
29 #endif
30 
31 #define BackgroundColorRGBA QuantumRange,QuantumRange,QuantumRange,OpaqueOpacity
32 #define BorderColor "#dfdfdf" /* gray */
33 #define BorderColorRGBA ScaleShortToQuantum(0xdfdf),\
34  ScaleShortToQuantum(0xdfdf),ScaleShortToQuantum(0xdfdf),OpaqueOpacity
35 #define DefaultResolution 72.0
36 #define DefaultTileFrame "15x15+3+3"
37 #define DefaultTileGeometry "120x120+4+3>"
38 #define DefaultTileLabel "%f\n%G\n%b"
39 #define ForegroundColor "#000" /* black */
40 #define ForegroundColorRGBA 0,0,0,OpaqueOpacity
41 #define LoadImagesTag "Load/Images"
42 #define LoadImageTag "Load/Image"
43 #define Magick2PI 6.28318530717958647692528676655900576839433879875020
44 #define MagickAbsoluteValue(x) ((x) < 0 ? -(x) : (x))
45 #define MagickPHI 1.61803398874989484820458683436563811772030917980576
46 #define MagickPI2 1.57079632679489661923132169163975144209858469968755
47 #define MagickPI 3.14159265358979323846264338327950288419716939937510
48 #define MagickSQ1_2 0.70710678118654752440084436210484903928483593768847
49 #define MagickSQ2 1.41421356237309504880168872420969807856967187537695
50 #define MagickSQ2PI 2.50662827463100024161235523934010416269302368164062
51 #define MAGICK_SIZE_MAX (SIZE_MAX)
52 #define MAGICK_SSIZE_MAX (SSIZE_MAX)
53 #define MAGICK_SSIZE_MIN (-SSIZE_MAX-1)
54 #define MatteColor "#bdbdbd" /* gray */
55 #define MatteColorRGBA ScaleShortToQuantum(0xbdbd),\
56  ScaleShortToQuantum(0xbdbd),ScaleShortToQuantum(0xbdbd),OpaqueOpacity
57 #define PSDensityGeometry "72.0x72.0"
58 #define PSPageGeometry "612x792"
59 #define SaveImagesTag "Save/Images"
60 #define SaveImageTag "Save/Image"
61 #define TransparentColor "#00000000" /* transparent black */
62 #define TransparentColorRGBA 0,0,0,TransparentOpacity
63 #define UndefinedCompressionQuality 0UL
64 #define UndefinedTicksPerSecond 100L
65 
66 static inline ssize_t CastDoubleToLong(const double x)
67 {
68  double
69  value;
70 
71  if (IsNaN(x) != 0)
72  {
73  errno=ERANGE;
74  return(0);
75  }
76  value=floor(x);
77  if (value > ((double) MAGICK_SSIZE_MAX-1))
78  {
79  errno=ERANGE;
80  return((ssize_t) MAGICK_SSIZE_MAX);
81  }
82  value=ceil(x);
83  if (value < ((double) MAGICK_SSIZE_MIN+1))
84  {
85  errno=ERANGE;
86  return((ssize_t) MAGICK_SSIZE_MIN);
87  }
88  return((ssize_t) x);
89 }
90 
91 static inline QuantumAny CastDoubleToQuantumAny(const double x)
92 {
93  if (IsNaN(x) != 0)
94  {
95  errno=ERANGE;
96  return(0);
97  }
98  if (x > ((double) ((QuantumAny) ~0)))
99  {
100  errno=ERANGE;
101  return((QuantumAny) ~0);
102  }
103  if (x < 0.0)
104  {
105  errno=ERANGE;
106  return((QuantumAny) 0);
107  }
108  return((QuantumAny) (x+0.5));
109 }
110 
111 static inline size_t CastDoubleToUnsigned(const double x)
112 {
113  double
114  value;
115 
116  if (IsNaN(x) != 0)
117  {
118  errno=ERANGE;
119  return(0);
120  }
121  value=floor(x);
122  if (value > ((double) MAGICK_SIZE_MAX-1))
123  {
124  errno=ERANGE;
125  return((size_t) MAGICK_SIZE_MAX);
126  }
127  value=ceil(x);
128  if (ceil(x) < 0.0)
129  {
130  errno=ERANGE;
131  return(0);
132  }
133  return((size_t) x);
134 }
135 
136 static inline double DegreesToRadians(const double degrees)
137 {
138  return((double) (MagickPI*degrees/180.0));
139 }
140 
141 static inline MagickRealType RadiansToDegrees(const MagickRealType radians)
142 {
143  return((MagickRealType) (180.0*radians/MagickPI));
144 }
145 
146 static inline unsigned char ScaleColor5to8(const unsigned int color)
147 {
148  return((unsigned char) (((color) << 3) | ((color) >> 2)));
149 }
150 
151 static inline unsigned char ScaleColor6to8(const unsigned int color)
152 {
153  return((unsigned char) (((color) << 2) | ((color) >> 4)));
154 }
155 
156 static inline unsigned int ScaleColor8to5(const unsigned char color)
157 {
158  return((unsigned int) (((color) & ~0x07) >> 3));
159 }
160 
161 static inline unsigned int ScaleColor8to6(const unsigned char color)
162 {
163  return((unsigned int) (((color) & ~0x03) >> 2));
164 }
165 
166 #if defined(__cplusplus) || defined(c_plusplus)
167 }
168 #endif
169 
170 #endif