| /* |
| Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization |
| dedicated to making software imaging solutions freely available. |
| |
| You may not use this file except in compliance with the License. |
| obtain a copy of the License at |
| |
| http://www.imagemagick.org/script/license.php |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| |
| MagickCore image private methods. |
| */ |
| #ifndef _MAGICKCORE_IMAGE_PRIVATE_H |
| #define _MAGICKCORE_IMAGE_PRIVATE_H |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| #define Magick2PI 6.28318530717958647692528676655900576839433879875020L |
| #define MagickPHI 1.61803398874989484820458683436563811772030917980576L |
| #define MagickPI2 1.57079632679489661923132169163975144209858469968755L |
| #define MagickSQ1_2 0.70710678118654752440084436210484903928483593768847L |
| #define MagickSQ2 1.41421356237309504880168872420969807856967187537695L |
| #define MagickSQ2PI 2.50662827463100024161235523934010416269302368164062L |
| #define UndefinedTicksPerSecond 100L |
| #define UndefinedCompressionQuality 0UL |
| |
| extern MagickExport const char |
| BackgroundColor[], |
| BorderColor[], |
| DefaultTileFrame[], |
| DefaultTileGeometry[], |
| DefaultTileLabel[], |
| ForegroundColor[], |
| MatteColor[], |
| LoadImageTag[], |
| LoadImagesTag[], |
| PSDensityGeometry[], |
| PSPageGeometry[], |
| SaveImageTag[], |
| SaveImagesTag[]; |
| |
| extern MagickExport const double |
| DefaultResolution; |
| |
| static inline double DegreesToRadians(const double degrees) |
| { |
| return((double) (MagickPI*degrees/180.0)); |
| } |
| |
| static inline double RadiansToDegrees(const double radians) |
| { |
| return((double) (180.0*radians/MagickPI)); |
| } |
| |
| static inline unsigned char ScaleColor5to8(const unsigned int color) |
| { |
| return((unsigned char) (((color) << 3) | ((color) >> 2))); |
| } |
| |
| static inline unsigned char ScaleColor6to8(const unsigned int color) |
| { |
| return((unsigned char) (((color) << 2) | ((color) >> 4))); |
| } |
| |
| static inline unsigned int ScaleColor8to5(const unsigned char color) |
| { |
| return((unsigned int) (((color) & ~0x07) >> 3)); |
| } |
| |
| static inline unsigned int ScaleColor8to6(const unsigned char color) |
| { |
| return((unsigned int) (((color) & ~0x03) >> 2)); |
| } |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } |
| #endif |
| |
| #endif |