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ImageMagick-6.1.1/coders/null.c File Reference

#include "magick/studio.h"
#include "magick/blob.h"
#include "magick/blob_private.h"
#include "magick/color.h"
#include "magick/color_private.h"
#include "magick/error.h"
#include "magick/error_private.h"
#include "magick/image.h"
#include "magick/image_private.h"
#include "magick/list.h"
#include "magick/magick.h"
#include "magick/memory_.h"
#include "magick/static.h"
#include "magick/string_.h"

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Go to the source code of this file.

Functions

MagickBooleanType WriteNULLImage (const ImageInfo *, Image *)
Image * ReadNULLImage (const ImageInfo *image_info, ExceptionInfo *exception)
ModuleExport void RegisterNULLImage (void)
ModuleExport void UnregisterNULLImage (void)

Function Documentation

Image* ReadNULLImage (  const ImageInfo *  image_info,
ExceptionInfo *  exception
)  [static]
 

Definition at line 92 of file null.c.

References AllocateImage(), AllocateImageColormap(), assert, _Image::background_color, _Image::colormap, _Image::columns, CopyMagickString(), _ImageInfo::debug, DestroyImage(), _Image::filename, _ImageInfo::filename, GetFirstImageInList(), GetMagickModule, LogMagickEvent(), MagickBooleanType, MagickFalse, MagickSignature, MaxTextExtent, OpaqueOpacity, QueryColorDatabase(), ResourceLimitError, _Image::rows, SetImage(), _ExceptionInfo::signature, _ImageInfo::signature, ThrowReaderException, and TraceEvent.

Referenced by RegisterNULLImage(). 

00094 {
00095   Image
00096     *image;
00097 
00098   MagickBooleanType
00099     status;
00100 
00101   /*
00102     Initialize Image structure.
00103   */
00104   assert(image_info != (const ImageInfo *) NULL);
00105   assert(image_info->signature == MagickSignature);
00106   if (image_info->debug != MagickFalse)
00107     (void) LogMagickEvent(TraceEvent,GetMagickModule(),image_info->filename);
00108   assert(exception != (ExceptionInfo *) NULL);
00109   assert(exception->signature == MagickSignature);
00110   image=AllocateImage(image_info);
00111   if (image->columns == 0)
00112     image->columns=1;
00113   if (image->rows == 0)
00114     image->rows=1;
00115   (void) CopyMagickString(image->filename,image_info->filename,MaxTextExtent);
00116   status=QueryColorDatabase((char *) image_info->filename,
00117     &image->background_color,exception);
00118   if (status == MagickFalse)
00119     {
00120       image=DestroyImage(image);
00121       return((Image *) NULL);
00122     }
00123   if (AllocateImageColormap(image,1) == MagickFalse)
00124     ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
00125   image->colormap[0]=image->background_color;
00126   SetImage(image,OpaqueOpacity);
00127   return(GetFirstImageInList(image));
00128 }

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ModuleExport void RegisterNULLImage (  void   ) 
 

Definition at line 153 of file null.c.

References AcquireString(), _MagickInfo::adjoin, _MagickInfo::decoder, DecoderHandler, _MagickInfo::description, _MagickInfo::encoder, EncoderHandler, MagickFalse, _MagickInfo::module, ModuleExport, ReadNULLImage(), RegisterMagickInfo(), SetMagickInfo(), and WriteNULLImage().

Referenced by RegisterStaticModules(). 

00154 {
00155   MagickInfo
00156     *entry;
00157 
00158   entry=SetMagickInfo("NULL");
00159   entry->decoder=(DecoderHandler *) ReadNULLImage;
00160   entry->encoder=(EncoderHandler *) WriteNULLImage;
00161   entry->adjoin=MagickFalse;
00162   entry->description=AcquireString("Constant image of uniform color");
00163   entry->module=AcquireString("NULL");
00164   (void) RegisterMagickInfo(entry);
00165 }

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ModuleExport void UnregisterNULLImage (  void   ) 
 

Definition at line 186 of file null.c.

References ModuleExport, and UnregisterMagickInfo().

Referenced by UnregisterStaticModules(). 

00187 {
00188   (void) UnregisterMagickInfo("NULL");
00189 }

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MagickBooleanType WriteNULLImage (  const ImageInfo *  ,
Image * 
)  [static]
 

Definition at line 217 of file null.c.

References assert, _Image::debug, _Image::filename, GetMagickModule, LogMagickEvent(), MagickBooleanType, MagickFalse, MagickSignature, MagickTrue, _Image::signature, _ImageInfo::signature, and TraceEvent.

Referenced by RegisterNULLImage(). 

00218 {
00219   assert(image_info != (const ImageInfo *) NULL);
00220   assert(image_info->signature == MagickSignature);
00221   assert(image != (Image *) NULL);
00222   assert(image->signature == MagickSignature);
00223   if (image->debug != MagickFalse)
00224     (void) LogMagickEvent(TraceEvent,GetMagickModule(),image->filename);
00225   return(MagickTrue);
00226 }

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Generated on Mon Oct 25 13:42:35 2004 for ImageMagick by doxygen 1.3.7
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