magick-wand-private.h

/*
  Copyright @ 1999 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.  You may
  obtain a copy of the License at
 
    https://imagemagick.org/license/
 
  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.
 
  ImageMagick pixel wand API.
*/
#ifndef MAGICKWAND_MAGICK_WAND_PRIVATE_H
#define MAGICKWAND_MAGICK_WAND_PRIVATE_H
 
#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif
 
#define MagickWandId  "MagickWand"
#define QuantumTick(i,span) ((MagickBooleanType) ((((i) & ((i)-1)) == 0) || \
   (((i) & 0xfff) == 0) || \
   ((MagickOffsetType) (i) == ((MagickOffsetType) (span)-1))))
#define ThrowWandException(severity,tag,context) \
{ \
  (void) ThrowMagickException(wand->exception,GetMagickModule(),severity, \
    tag,"`%s'",context); \
  return(MagickFalse); \
}
#define ThrowWandFatalException(severity,tag,context) \
{ \
  ExceptionInfo *fatal_exception = AcquireExceptionInfo(); \
  char *message = GetExceptionMessage(errno); \
  (void) ThrowMagickException(fatal_exception,GetMagickModule(),severity,tag, \
    "`%s'",context == (char *) NULL ? message : context); \
  message=DestroyString(message); \
  CatchException(fatal_exception); \
  (void) DestroyExceptionInfo(fatal_exception); \
  MagickWandTerminus(); \
  _exit((int) (severity-FatalErrorException)+1); \
}
 
static inline void CheckMagickCoreCompatibility(void)
{
  const char
    *quantum;
 
  size_t
    depth;
 
  quantum=GetMagickQuantumDepth(&depth);
  if (depth != MAGICKCORE_QUANTUM_DEPTH)
    ThrowWandFatalException(WandError,"QuantumDepthMismatch",quantum);
}
 
struct _MagickWand
{
  size_t
    id;
 
  char
    name[MagickPathExtent];  /* Wand name to use for MagickWand Logs */
 
  Image
    *images;          /* The images in this wand - also the current image */
 
  ImageInfo
    *image_info;      /* Global settings used for images in Wand */
 
  ExceptionInfo
    *exception;
 
  MagickBooleanType
    insert_before,    /* wand set to first image, prepend new images */
    image_pending,    /* this image is pending Next/Previous Iteration */
    debug;            /* Log calls to MagickWand library */
 
  size_t
    signature;
};
 
#if defined(__cplusplus) || defined(c_plusplus)
}
#endif
 
#endif