| /*****************************************************************************/ |
| // Copyright 2006 Adobe Systems Incorporated |
| // All Rights Reserved. |
| // |
| // NOTICE: Adobe permits you to use, modify, and distribute this file in |
| // accordance with the terms of the Adobe license agreement accompanying it. |
| /*****************************************************************************/ |
| |
| /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_orientation.cpp#1 $ */ |
| /* $DateTime: 2012/05/30 13:28:51 $ */ |
| /* $Change: 832332 $ */ |
| /* $Author: tknoll $ */ |
| |
| #include "dng_orientation.h" |
| |
| /*****************************************************************************/ |
| |
| void dng_orientation::SetTIFF (uint32 tiff) |
| { |
| |
| switch (tiff) |
| { |
| |
| case 1: |
| { |
| fAdobeOrientation = kNormal; |
| break; |
| } |
| |
| case 2: |
| { |
| fAdobeOrientation = kMirror; |
| break; |
| } |
| |
| case 3: |
| { |
| fAdobeOrientation = kRotate180; |
| break; |
| } |
| |
| case 4: |
| { |
| fAdobeOrientation = kMirror180; |
| break; |
| } |
| |
| case 5: |
| { |
| fAdobeOrientation = kMirror90CCW; |
| break; |
| } |
| |
| case 6: |
| { |
| fAdobeOrientation = kRotate90CW; |
| break; |
| } |
| |
| case 7: |
| { |
| fAdobeOrientation = kMirror90CW; |
| break; |
| } |
| |
| case 8: |
| { |
| fAdobeOrientation = kRotate90CCW; |
| break; |
| } |
| |
| case 9: |
| { |
| fAdobeOrientation = kUnknown; |
| break; |
| } |
| |
| default: |
| { |
| fAdobeOrientation = kNormal; |
| } |
| |
| } |
| |
| } |
| |
| /*****************************************************************************/ |
| |
| uint32 dng_orientation::GetTIFF () const |
| { |
| |
| switch (fAdobeOrientation) |
| { |
| |
| case kNormal: |
| { |
| return 1; |
| } |
| |
| case kMirror: |
| { |
| return 2; |
| } |
| |
| case kRotate180: |
| { |
| return 3; |
| } |
| |
| case kMirror180: |
| { |
| return 4; |
| } |
| |
| case kMirror90CCW: |
| { |
| return 5; |
| } |
| |
| case kRotate90CW: |
| { |
| return 6; |
| } |
| |
| case kMirror90CW: |
| { |
| return 7; |
| } |
| |
| case kRotate90CCW: |
| { |
| return 8; |
| } |
| |
| case kUnknown: |
| { |
| return 9; |
| } |
| |
| default: |
| break; |
| |
| } |
| |
| return 1; |
| |
| } |
| |
| /*****************************************************************************/ |
| |
| bool dng_orientation::FlipD () const |
| { |
| |
| return (fAdobeOrientation & 1) != 0; |
| |
| } |
| |
| /*****************************************************************************/ |
| |
| bool dng_orientation::FlipH () const |
| { |
| |
| if (fAdobeOrientation & 4) |
| return (fAdobeOrientation & 2) == 0; |
| |
| else |
| return (fAdobeOrientation & 2) != 0; |
| |
| } |
| |
| /*****************************************************************************/ |
| |
| bool dng_orientation::FlipV () const |
| { |
| |
| if (fAdobeOrientation & 4) |
| return FlipD () == FlipH (); |
| |
| else |
| return FlipD () != FlipH (); |
| |
| } |
| |
| /*****************************************************************************/ |
| |
| dng_orientation dng_orientation::operator- () const |
| { |
| |
| uint32 x = GetAdobe (); |
| |
| if ((x & 5) == 5) |
| { |
| |
| x ^= 2; |
| |
| } |
| |
| dng_orientation result; |
| |
| result.SetAdobe (((4 - x) & 3) | (x & 4)); |
| |
| return result; |
| |
| } |
| |
| /*****************************************************************************/ |
| |
| dng_orientation dng_orientation::operator+ (const dng_orientation &b) const |
| { |
| |
| uint32 x = GetAdobe (); |
| |
| uint32 y = b.GetAdobe (); |
| |
| if (y & 4) |
| { |
| |
| if (x & 1) |
| x ^= 6; |
| else |
| x ^= 4; |
| |
| } |
| |
| dng_orientation result; |
| |
| result.SetAdobe (((x + y) & 3) | (x & 4)); |
| |
| return result; |
| |
| } |
| |
| /*****************************************************************************/ |
