1 /*****************************************************************************/ 2 // Copyright 2006 Adobe Systems Incorporated 3 // All Rights Reserved. 4 // 5 // NOTICE: Adobe permits you to use, modify, and distribute this file in 6 // accordance with the terms of the Adobe license agreement accompanying it. 7 /*****************************************************************************/ 8 9 /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_orientation.cpp#1 $ */ 10 /* $DateTime: 2012/05/30 13:28:51 $ */ 11 /* $Change: 832332 $ */ 12 /* $Author: tknoll $ */ 13 14 #include "dng_orientation.h" 15 16 /*****************************************************************************/ 17 SetTIFF(uint32 tiff)18void dng_orientation::SetTIFF (uint32 tiff) 19 { 20 21 switch (tiff) 22 { 23 24 case 1: 25 { 26 fAdobeOrientation = kNormal; 27 break; 28 } 29 30 case 2: 31 { 32 fAdobeOrientation = kMirror; 33 break; 34 } 35 36 case 3: 37 { 38 fAdobeOrientation = kRotate180; 39 break; 40 } 41 42 case 4: 43 { 44 fAdobeOrientation = kMirror180; 45 break; 46 } 47 48 case 5: 49 { 50 fAdobeOrientation = kMirror90CCW; 51 break; 52 } 53 54 case 6: 55 { 56 fAdobeOrientation = kRotate90CW; 57 break; 58 } 59 60 case 7: 61 { 62 fAdobeOrientation = kMirror90CW; 63 break; 64 } 65 66 case 8: 67 { 68 fAdobeOrientation = kRotate90CCW; 69 break; 70 } 71 72 case 9: 73 { 74 fAdobeOrientation = kUnknown; 75 break; 76 } 77 78 default: 79 { 80 fAdobeOrientation = kNormal; 81 } 82 83 } 84 85 } 86 87 /*****************************************************************************/ 88 GetTIFF() const89uint32 dng_orientation::GetTIFF () const 90 { 91 92 switch (fAdobeOrientation) 93 { 94 95 case kNormal: 96 { 97 return 1; 98 } 99 100 case kMirror: 101 { 102 return 2; 103 } 104 105 case kRotate180: 106 { 107 return 3; 108 } 109 110 case kMirror180: 111 { 112 return 4; 113 } 114 115 case kMirror90CCW: 116 { 117 return 5; 118 } 119 120 case kRotate90CW: 121 { 122 return 6; 123 } 124 125 case kMirror90CW: 126 { 127 return 7; 128 } 129 130 case kRotate90CCW: 131 { 132 return 8; 133 } 134 135 case kUnknown: 136 { 137 return 9; 138 } 139 140 default: 141 break; 142 143 } 144 145 return 1; 146 147 } 148 149 /*****************************************************************************/ 150 FlipD() const151bool dng_orientation::FlipD () const 152 { 153 154 return (fAdobeOrientation & 1) != 0; 155 156 } 157 158 /*****************************************************************************/ 159 FlipH() const160bool dng_orientation::FlipH () const 161 { 162 163 if (fAdobeOrientation & 4) 164 return (fAdobeOrientation & 2) == 0; 165 166 else 167 return (fAdobeOrientation & 2) != 0; 168 169 } 170 171 /*****************************************************************************/ 172 FlipV() const173bool dng_orientation::FlipV () const 174 { 175 176 if (fAdobeOrientation & 4) 177 return FlipD () == FlipH (); 178 179 else 180 return FlipD () != FlipH (); 181 182 } 183 184 /*****************************************************************************/ 185 operator -() const186dng_orientation dng_orientation::operator- () const 187 { 188 189 uint32 x = GetAdobe (); 190 191 if ((x & 5) == 5) 192 { 193 194 x ^= 2; 195 196 } 197 198 dng_orientation result; 199 200 result.SetAdobe (((4 - x) & 3) | (x & 4)); 201 202 return result; 203 204 } 205 206 /*****************************************************************************/ 207 operator +(const dng_orientation & b) const208dng_orientation dng_orientation::operator+ (const dng_orientation &b) const 209 { 210 211 uint32 x = GetAdobe (); 212 213 uint32 y = b.GetAdobe (); 214 215 if (y & 4) 216 { 217 218 if (x & 1) 219 x ^= 6; 220 else 221 x ^= 4; 222 223 } 224 225 dng_orientation result; 226 227 result.SetAdobe (((x + y) & 3) | (x & 4)); 228 229 return result; 230 231 } 232 233 /*****************************************************************************/ 234