444 lines
17 KiB
C
444 lines
17 KiB
C
/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% V V EEEEE RRRR SSSSS IIIII OOO N N %
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% V V E R R SS I O O NN N %
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% V V EEE RRRR SSS I O O N N N %
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% V V E R R SS I O O N NN %
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% V EEEEE R R SSSSS IIIII OOO N N %
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% %
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% %
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% MagickCore Version and Copyright Methods %
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% %
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% Software Design %
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% John Cristy %
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% September 2002 %
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% %
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% %
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% Copyright 1999-2013 ImageMagick Studio LLC, a non-profit organization %
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% dedicated to making software imaging solutions freely available. %
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% %
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% You may not use this file except in compliance with the License. You may %
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% obtain a copy of the License at %
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% %
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% http://www.imagemagick.org/script/license.php %
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% %
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% Unless required by applicable law or agreed to in writing, software %
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% distributed under the License is distributed on an "AS IS" BASIS, %
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% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
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% See the License for the specific language governing permissions and %
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% limitations under the License. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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#include "magick/studio.h"
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#include "magick/configure.h"
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#include "magick/exception.h"
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#include "magick/exception-private.h"
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#include "magick/hashmap.h"
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#include "magick/locale_.h"
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#include "magick/option.h"
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#include "magick/string_.h"
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#include "magick/utility.h"
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#include "magick/version.h"
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/*
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Define declarations.
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*/
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#define MagickURLFilename "index.html"
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k C o p y r i g h t %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickCopyright() returns the ImageMagick API copyright as a string.
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%
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% The format of the GetMagickCopyright method is:
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%
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% const char *GetMagickCopyright(void)
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%
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*/
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MagickExport const char *GetMagickCopyright(void)
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{
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return(MagickCopyright);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k D e l e g a t e s %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickDelegates() returns the ImageMagick delegate libraries.
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%
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% The format of the GetMagickDelegates method is:
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%
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% const char *GetMagickDelegates(void)
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%
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% No parameters are required.
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%
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*/
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MagickExport const char *GetMagickDelegates(void)
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{
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return(MagickDelegates);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k F e a t u r e s %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickFeatures() returns the ImageMagick features.
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%
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% The format of the GetMagickFeatures method is:
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%
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% const char *GetMagickFeatures(void)
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%
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% No parameters are required.
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%
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*/
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MagickExport const char *GetMagickFeatures(void)
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{
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return(MagickFeatures);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k H o m e U R L %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickHomeURL() returns the ImageMagick home URL.
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%
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% The format of the GetMagickHomeURL method is:
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%
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% char *GetMagickHomeURL(void)
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%
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*/
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MagickExport char *GetMagickHomeURL(void)
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{
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char
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path[MaxTextExtent];
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const char
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*element;
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ExceptionInfo
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*exception;
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LinkedListInfo
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*paths;
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exception=AcquireExceptionInfo();
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paths=GetConfigurePaths(MagickURLFilename,exception);
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exception=DestroyExceptionInfo(exception);
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if (paths == (LinkedListInfo *) NULL)
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return(ConstantString(MagickHomeURL));
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element=(const char *) GetNextValueInLinkedList(paths);
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while (element != (const char *) NULL)
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{
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(void) FormatLocaleString(path,MaxTextExtent,"%s%s%s",element,
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DirectorySeparator,MagickURLFilename);
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if (IsPathAccessible(path) != MagickFalse)
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return(ConstantString(path));
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element=(const char *) GetNextValueInLinkedList(paths);
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}
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return(ConstantString(MagickHomeURL));
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k P a c k a g e N a m e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickPackageName() returns the ImageMagick package name.
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%
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% The format of the GetMagickName method is:
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%
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% const char *GetMagickName(void)
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%
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% No parameters are required.
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%
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*/
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MagickExport const char *GetMagickPackageName(void)
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{
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return(MagickPackageName);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k Q u a n t u m D e p t h %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickQuantumDepth() returns the ImageMagick quantum depth.
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%
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% The format of the GetMagickQuantumDepth method is:
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%
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% const char *GetMagickQuantumDepth(size_t *depth)
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%
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% A description of each parameter follows:
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%
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% o depth: the quantum depth is returned as a number.
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%
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*/
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MagickExport const char *GetMagickQuantumDepth(size_t *depth)
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{
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if (depth != (size_t *) NULL)
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*depth=(size_t) MAGICKCORE_QUANTUM_DEPTH;
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return(MagickQuantumDepth);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k Q u a n t u m R a n g e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickQuantumRange() returns the ImageMagick quantum range.
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%
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% The format of the GetMagickQuantumRange method is:
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%
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% const char *GetMagickQuantumRange(size_t *range)
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%
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% A description of each parameter follows:
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%
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% o range: the quantum range is returned as a number.
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%
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*/
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MagickExport const char *GetMagickQuantumRange(size_t *range)
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{
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if (range != (size_t *) NULL)
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*range=(size_t) QuantumRange;
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return(MagickQuantumRange);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k R e l e a s e D a t e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickReleaseDate() returns the ImageMagick release date.
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%
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% The format of the GetMagickReleaseDate method is:
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%
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% const char *GetMagickReleaseDate(void)
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%
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% No parameters are required.
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%
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*/
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MagickExport const char *GetMagickReleaseDate(void)
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{
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return(MagickReleaseDate);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k S i g n a t u r e %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickSignature() returns a signature that uniquely encodes the
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% MagickCore libary version, quantum depth, HDRI status, OS word size, and
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% endianness.
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%
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% The format of the GetMagickSignature method is:
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%
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% unsigned int GetMagickSignature(const StringInfo *nonce)
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%
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% A description of each parameter follows:
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%
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% o nonce: arbitrary data.
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%
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*/
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static unsigned int CRC32(const unsigned char *message,const size_t length)
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{
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register ssize_t
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i;
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static MagickBooleanType
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crc_initial = MagickFalse;
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static unsigned int
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crc_xor[256];
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unsigned int
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crc;
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/*
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Generate a 32-bit cyclic redundancy check for the message.
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*/
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if (crc_initial == MagickFalse)
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{
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unsigned int
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alpha;
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for (i=0; i < 256; i++)
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{
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register ssize_t
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j;
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alpha=(size_t) i;
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for (j=0; j < 8; j++)
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alpha=(alpha & 0x01) ? (0xEDB88320 ^ (alpha >> 1)) : (alpha >> 1);
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crc_xor[i]=alpha;
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}
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crc_initial=MagickTrue;
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}
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crc=0xFFFFFFFF;
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for (i=0; i < (ssize_t) length; i++)
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crc=crc_xor[(crc ^ message[i]) & 0xff] ^ (crc >> 8);
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return(crc ^ 0xFFFFFFFF);
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}
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MagickExport unsigned int GetMagickSignature(const StringInfo *nonce)
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{
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register unsigned char
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*p;
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StringInfo
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*version;
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unsigned int
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signature;
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version=AcquireStringInfo(MaxTextExtent);
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p=GetStringInfoDatum(version);
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signature=MAGICKCORE_QUANTUM_DEPTH;
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(void) memcpy(p,&signature,sizeof(signature));
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p+=sizeof(signature);
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signature=MAGICKCORE_HDRI_ENABLE;
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(void) memcpy(p,&signature,sizeof(signature));
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p+=sizeof(signature);
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signature=MagickLibInterface;
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(void) memcpy(p,&signature,sizeof(signature));
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p+=sizeof(signature);
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signature=1; /* endianess */
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(void) memcpy(p,&signature,sizeof(signature));
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p+=sizeof(signature);
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SetStringInfoLength(version,p-GetStringInfoDatum(version));
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if (nonce != (const StringInfo *) NULL)
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ConcatenateStringInfo(version,nonce);
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signature=CRC32(GetStringInfoDatum(version),GetStringInfoLength(version));
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version=DestroyStringInfo(version);
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return(signature);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% G e t M a g i c k V e r s i o n %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% GetMagickVersion() returns the ImageMagick API version as a string and
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% as a number.
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%
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% The format of the GetMagickVersion method is:
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%
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% const char *GetMagickVersion(size_t *version)
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%
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% A description of each parameter follows:
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%
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% o version: the ImageMagick version is returned as a number.
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%
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*/
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MagickExport const char *GetMagickVersion(size_t *version)
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{
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if (version != (size_t *) NULL)
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*version=MagickLibVersion;
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return(MagickVersion);
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}
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/*
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% L i s t M a g i c k V e r s i o n %
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% %
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% %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% ListMagickVersion() identifies the ImageMagick version by printing its
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% attributes to the file. Attributes include the copyright, features, and
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% delegates.
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%
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% The format of the ListMagickVersion method is:
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%
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% void ListMagickVersion(FILE *file)
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%
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% A description of each parameter follows:
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%
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% o file: the file, typically stdout.
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%
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*/
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MagickExport void ListMagickVersion(FILE *file)
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{
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(void) FormatLocaleFile(file,"Version: %s\n",
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GetMagickVersion((size_t *) NULL));
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(void) FormatLocaleFile(file,"Copyright: %s\n",GetMagickCopyright());
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(void) FormatLocaleFile(file,"Features: %s\n",GetMagickFeatures());
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(void) FormatLocaleFile(file,"Delegates: %s\n\n",GetMagickDelegates());
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}
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