text: /*
    Copyright 1999-2015 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 distortion methods.
  */
  #ifndef _MAGICKCORE_DISTORT_H
  #define _MAGICKCORE_DISTORT_H
  
  #if defined(__cplusplus) || defined(c_plusplus)
  extern "C" {
  #endif
  
  /*
    These two enum are linked, with common enumerated values.  Both
    DistortImages() and SparseColor() often share code to determine functional
    coefficients for common methods.
  
    Caution should be taken to ensure that only the common methods contain the
    same enumerated value, while all others remain unique across both
    enumerations.
  */
  typedef enum
  {
    UndefinedDistortion,
    AffineDistortion,
    AffineProjectionDistortion,
    ScaleRotateTranslateDistortion,
    PerspectiveDistortion,
    PerspectiveProjectionDistortion,
    BilinearForwardDistortion,
    BilinearDistortion = BilinearForwardDistortion,
    BilinearReverseDistortion,
    PolynomialDistortion,
    ArcDistortion,
    PolarDistortion,
    DePolarDistortion,
    Cylinder2PlaneDistortion,
    Plane2CylinderDistortion,
    BarrelDistortion,
    BarrelInverseDistortion,
    ShepardsDistortion,
    ResizeDistortion,
    SentinelDistortion
  } DistortImageMethod;
  
  typedef enum
  {
    UndefinedColorInterpolate = UndefinedDistortion,
    BarycentricColorInterpolate = AffineDistortion,
    BilinearColorInterpolate = BilinearReverseDistortion,
    PolynomialColorInterpolate = PolynomialDistortion,
    ShepardsColorInterpolate = ShepardsDistortion,
    /*
      Methods unique to SparseColor().
    */
    VoronoiColorInterpolate = SentinelDistortion,
    InverseColorInterpolate
  } SparseColorMethod;
  
  extern MagickExport Image
    *AffineTransformImage(const Image *,const AffineMatrix *,ExceptionInfo *),
    *DistortImage(const Image *,const DistortImageMethod,const size_t,
      const double *,MagickBooleanType,ExceptionInfo *exception),
    *DistortResizeImage(const Image *,const size_t,const size_t,ExceptionInfo *),
    *RotateImage(const Image *,const double,ExceptionInfo *),
    *SparseColorImage(const Image *,const ChannelType,const SparseColorMethod,
      const size_t,const double *,ExceptionInfo *);
  
  #if defined(__cplusplus) || defined(c_plusplus)
  }
  #endif
  
  #endif
  