| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % M M AAA GGGG IIIII CCCC K K % |
| % MM MM A A G I C K K % |
| % M M M AAAAA G GGG I C KKK % |
| % M M A A G G I C K K % |
| % M M A A GGGG IIIII CCCC K K % |
| % % |
| % % |
| % Methods to Read or List ImageMagick Image formats % |
| % % |
| % Software Design % |
| % Bob Friesenhahn % |
| % Cristy % |
| % November 1998 % |
| % % |
| % % |
| % Copyright 1999-2020 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/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. % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % |
| */ |
| |
| /* |
| Include declarations. |
| */ |
| #include "MagickCore/studio.h" |
| #include "MagickCore/annotate-private.h" |
| #include "MagickCore/blob.h" |
| #include "MagickCore/blob-private.h" |
| #include "MagickCore/cache.h" |
| #include "MagickCore/cache-private.h" |
| #include "MagickCore/coder-private.h" |
| #include "MagickCore/client.h" |
| #include "MagickCore/color-private.h" |
| #include "MagickCore/configure-private.h" |
| #include "MagickCore/constitute-private.h" |
| #include "MagickCore/delegate-private.h" |
| #include "MagickCore/draw.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/locale-private.h" |
| #include "MagickCore/log-private.h" |
| #include "MagickCore/magic-private.h" |
| #include "MagickCore/magick.h" |
| #include "MagickCore/magick-private.h" |
| #include "MagickCore/memory_.h" |
| #include "MagickCore/mime-private.h" |
| #include "MagickCore/monitor-private.h" |
| #include "MagickCore/module.h" |
| #include "MagickCore/module-private.h" |
| #include "MagickCore/mutex.h" |
| #include "MagickCore/nt-base-private.h" |
| #include "MagickCore/nt-feature.h" |
| #include "MagickCore/opencl-private.h" |
| #include "MagickCore/option-private.h" |
| #include "MagickCore/random-private.h" |
| #include "MagickCore/registry.h" |
| #include "MagickCore/registry-private.h" |
| #include "MagickCore/resource_.h" |
| #include "MagickCore/resource-private.h" |
| #include "MagickCore/policy.h" |
| #include "MagickCore/policy-private.h" |
| #include "MagickCore/mutex.h" |
| #include "MagickCore/semaphore.h" |
| #include "MagickCore/semaphore-private.h" |
| #include "MagickCore/signature-private.h" |
| #include "MagickCore/splay-tree.h" |
| #include "MagickCore/static.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/string-private.h" |
| #include "MagickCore/thread_.h" |
| #include "MagickCore/thread-private.h" |
| #include "MagickCore/type-private.h" |
| #include "MagickCore/token.h" |
| #include "MagickCore/utility.h" |
| #include "MagickCore/utility-private.h" |
| #include "MagickCore/xwindow-private.h" |
| #if defined(MAGICKCORE_XML_DELEGATE) |
| # if defined(MAGICKCORE_WINDOWS_SUPPORT) |
| # if !defined(__MINGW32__) |
| # include <win32config.h> |
| # endif |
| # endif |
| # include <libxml/parser.h> |
| #endif |
| |
| /* |
| Define declarations. |
| */ |
| #if !defined(SIG_DFL) |
| # define SIG_DFL ((SignalHandler *) 0) |
| #endif |
| #if !defined(SIG_ERR) |
| # define SIG_ERR ((SignalHandler *) -1) |
| #endif |
| #if !defined(SIGMAX) |
| #define SIGMAX 64 |
| #endif |
| |
| /* |
| Typedef declarations. |
| */ |
| typedef void SignalHandler(int); |
| |
| /* |
| Global declarations. |
| */ |
| static SemaphoreInfo |
| *magick_semaphore = (SemaphoreInfo *) NULL; |
| |
| static SignalHandler |
| *signal_handlers[SIGMAX] = { (SignalHandler *) NULL }; |
| |
| static SplayTreeInfo |
| *magick_list = (SplayTreeInfo *) NULL; |
| |
| static volatile MagickBooleanType |
| magickcore_instantiated = MagickFalse, |
| magickcore_signal_in_progress = MagickFalse, |
| magick_list_initialized = MagickFalse; |
| |
| static int |
| magick_precision = 0; |
| |
| /* |
| Forward declarations. |
| */ |
| static MagickBooleanType |
| IsMagickTreeInstantiated(ExceptionInfo *); |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % A c q u i r e M a g i c k I n f o % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % AcquireMagickInfo() allocates a MagickInfo structure and initializes the |
| % members to default values. |
| % |
| % The format of the AcquireMagickInfo method is: |
| % |
| % MagickInfo *AcquireMagickInfo(const char *magick_module, |
| % const char *name,const char *description) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_module: a character string that represents the module associated |
| % with the MagickInfo structure. |
| % |
| % o name: a character string that represents the image format associated |
| % with the MagickInfo structure. |
| % |
| % o description: a character string that represents the image format |
| % associated with the MagickInfo structure. |
| % |
| */ |
| MagickExport MagickInfo *AcquireMagickInfo(const char *magick_module, |
| const char *name,const char *description) |
| { |
| MagickInfo |
| *magick_info; |
| |
| assert(magick_module != (const char *) NULL); |
| assert(name != (const char *) NULL); |
| assert(description != (const char *) NULL); |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",name); |
| magick_info=(MagickInfo *) AcquireCriticalMemory(sizeof(*magick_info)); |
| (void) memset(magick_info,0,sizeof(*magick_info)); |
| magick_info->magick_module=ConstantString(magick_module); |
| magick_info->name=ConstantString(name); |
| magick_info->description=ConstantString(description); |
| magick_info->flags=CoderAdjoinFlag | CoderBlobSupportFlag | |
| CoderDecoderThreadSupportFlag | CoderEncoderThreadSupportFlag | |
| CoderUseExtensionFlag; |
| magick_info->signature=MagickCoreSignature; |
| return(magick_info); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t I m a g e D e c o d e r % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetImageDecoder() returns the image decoder. |
| % |
| % The format of the GetImageDecoder method is: |
| % |
| % DecodeImageHandler *GetImageDecoder(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport DecodeImageHandler *GetImageDecoder(const MagickInfo *magick_info) |
| { |
| if (magick_info == (MagickInfo *) NULL) |
| return((DecodeImageHandler *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(magick_info->decoder); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t I m a g e E n c o d e r % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetImageEncoder() returns the image encoder. |
| % |
| % The format of the GetImageEncoder method is: |
| % |
| % EncodeImageHandler *GetImageEncoder(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport EncodeImageHandler *GetImageEncoder(const MagickInfo *magick_info) |
| { |
| if (magick_info == (MagickInfo *) NULL) |
| return((EncodeImageHandler *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(magick_info->encoder); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t I m a g e M a g i c k % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetImageMagick() searches for an image format that matches the specified |
| % magick string. If one is found, MagickTrue is returned otherwise |
| % MagickFalse. |
| % |
| % The format of the GetImageMagick method is: |
| % |
| % MagickBooleanType GetImageMagick(const unsigned char *magick, |
| % const size_t length,char *format) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick: the image format we are searching for. |
| % |
| % o length: the length of the binary string. |
| % |
| % o format: the image format as determined by the magick bytes. |
| % |
| */ |
| MagickExport MagickBooleanType GetImageMagick(const unsigned char *magick, |
| const size_t length,char *format) |
| { |
| ExceptionInfo |
| *exception; |
| |
| MagickBooleanType |
| status; |
| |
| register const MagickInfo |
| *p; |
| |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| assert(magick != (const unsigned char *) NULL); |
| exception=AcquireExceptionInfo(); |
| p=GetMagickInfo("*",exception); |
| exception=DestroyExceptionInfo(exception); |
| if (p == (const MagickInfo *) NULL) |
| return(MagickFalse); |
| status=MagickFalse; |
| LockSemaphoreInfo(magick_semaphore); |
| ResetSplayTreeIterator(magick_list); |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| while (p != (const MagickInfo *) NULL) |
| { |
| if ((p->magick != (IsImageFormatHandler *) NULL) && |
| (p->magick(magick,length) != 0)) |
| { |
| status=MagickTrue; |
| (void) CopyMagickString(format,p->name,MagickPathExtent); |
| break; |
| } |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| } |
| UnlockSemaphoreInfo(magick_semaphore); |
| return(status); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k A d j o i n % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickAdjoin() returns MagickTrue if the magick adjoin is MagickTrue. |
| % |
| % The format of the GetMagickAdjoin method is: |
| % |
| % MagickBooleanType GetMagickAdjoin(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickAdjoin(const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderAdjoinFlag) == 0) ? MagickFalse : |
| MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k B l o b S u p p o r t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickBlobSupport() returns MagickTrue if the magick supports blobs. |
| % |
| % The format of the GetMagickBlobSupport method is: |
| % |
| % MagickBooleanType GetMagickBlobSupport(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickBlobSupport( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderBlobSupportFlag) == 0) ? MagickFalse : |
| MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k D e c o d e r S e e k a b l e S t r e a m % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickDecoderSeekableStream() returns MagickTrue if the magick supports a |
| % seekable stream in the decoder. |
| % |
| % The format of the GetMagickDecoderSeekableStream method is: |
| % |
| % MagickBooleanType GetMagickDecoderSeekableStream( |
| % const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickDecoderSeekableStream( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| if ((magick_info->flags & CoderDecoderSeekableStreamFlag) == 0) |
| return(MagickFalse); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k D e c o d e r T h r e a d S u p p o r t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickDecoderThreadSupport() returns MagickTrue if the decoder supports |
| % threads. |
| % |
| % The format of the GetMagickDecoderThreadSupport method is: |
| % |
| % MagickStatusType GetMagickDecoderThreadSupport( |
| % const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickDecoderThreadSupport( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderDecoderThreadSupportFlag) == 0) ? |
| MagickFalse : MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k D e s c r i p t i o n % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickDescription() returns the magick description. |
| % |
| % The format of the GetMagickDescription method is: |
| % |
| % const char *GetMagickDescription(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport const char *GetMagickDescription(const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(magick_info->description); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k E n c o d e r S e e k a b l e S t r e a m % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickEncoderSeekableStream() returns MagickTrue if the magick supports a |
| % seekable stream in the encoder. |
| % |
| % The format of the GetMagickEncoderSeekableStream method is: |
| % |
| % MagickBooleanType GetMagickEncoderSeekableStream( |
| % const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickEncoderSeekableStream( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| if ((magick_info->flags & CoderEncoderSeekableStreamFlag) == 0) |
| return(MagickFalse); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k E n c o d e r T h r e a d S u p p o r t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickEncoderThreadSupport() returns MagickTrue if the encoder supports |
| % threads. |
| % |
| % The format of the GetMagickEncoderThreadSupport method is: |
| % |
| % MagickStatusType GetMagickEncoderThreadSupport( |
| % const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickEncoderThreadSupport( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderDecoderThreadSupportFlag) == 0) ? |
| MagickFalse : MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k E n d i a n S u p p o r t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickEndianSupport() returns the MagickTrue if the coder respects |
| % endianness other than MSBEndian. |
| % |
| % The format of the GetMagickEndianSupport method is: |
| % |
| % MagickBooleanType GetMagickEndianSupport(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickEndianSupport( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderEndianSupportFlag) == 0) ? MagickFalse : |
| MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k I n f o % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickInfo() returns a pointer MagickInfo structure that matches |
| % the specified name. If name is NULL, the head of the image format list |
| % is returned. |
| % |
| % The format of the GetMagickInfo method is: |
| % |
| % const MagickInfo *GetMagickInfo(const char *name,Exception *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o name: the image format we are looking for. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| MagickExport const MagickInfo *GetMagickInfo(const char *name, |
| ExceptionInfo *exception) |
| { |
| register const MagickInfo |
| *magick_info; |
| |
| /* |
| Find named module attributes. |
| */ |
| assert(exception != (ExceptionInfo *) NULL); |
| if (IsMagickTreeInstantiated(exception) == MagickFalse) |
| return((const MagickInfo *) NULL); |
| magick_info=(const MagickInfo *) NULL; |
| if ((name != (const char *) NULL) && (*name != '\0')) |
| { |
| LockSemaphoreInfo(magick_semaphore); |
| if (LocaleCompare(name,"*") == 0) |
| #if defined(MAGICKCORE_BUILD_MODULES) |
| (void) OpenModules(exception); |
| #else |
| RegisterStaticModules(); |
| #endif |
| else |
| { |
| magick_info=(const MagickInfo *) GetValueFromSplayTree(magick_list, |
| name); |
| if (magick_info == (const MagickInfo *) NULL) |
| #if defined(MAGICKCORE_BUILD_MODULES) |
| (void) OpenModule(name,exception); |
| #else |
| (void) RegisterStaticModule(name,exception); |
| #endif |
| } |
| UnlockSemaphoreInfo(magick_semaphore); |
| } |
| if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0)) |
| return((const MagickInfo *) GetRootValueFromSplayTree(magick_list)); |
| if (magick_info == (const MagickInfo *) NULL) |
| magick_info=(const MagickInfo *) GetValueFromSplayTree(magick_list,name); |
| return(magick_info); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k I n f o L i s t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickInfoList() returns any image formats that match the specified |
| % pattern. |
| % |
| % The format of the GetMagickInfoList function is: |
| % |
| % const MagickInfo **GetMagickInfoList(const char *pattern, |
| % size_t *number_formats,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o pattern: Specifies a pointer to a text string containing a pattern. |
| % |
| % o number_formats: This integer returns the number of formats in the list. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| static int MagickInfoCompare(const void *x,const void *y) |
| { |
| const MagickInfo |
| **p, |
| **q; |
| |
| p=(const MagickInfo **) x, |
| q=(const MagickInfo **) y; |
| return(LocaleCompare((*p)->name,(*q)->name)); |
| } |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } |
| #endif |
| |
| MagickExport const MagickInfo **GetMagickInfoList(const char *pattern, |
| size_t *number_formats,ExceptionInfo *exception) |
| { |
| const MagickInfo |
| **formats; |
| |
| register const MagickInfo |
| *p; |
| |
| register ssize_t |
| i; |
| |
| /* |
| Allocate magick list. |
| */ |
| assert(pattern != (char *) NULL); |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| assert(number_formats != (size_t *) NULL); |
| *number_formats=0; |
| p=GetMagickInfo("*",exception); |
| if (p == (const MagickInfo *) NULL) |
| return((const MagickInfo **) NULL); |
| formats=(const MagickInfo **) AcquireQuantumMemory((size_t) |
| GetNumberOfNodesInSplayTree(magick_list)+1UL,sizeof(*formats)); |
| if (formats == (const MagickInfo **) NULL) |
| return((const MagickInfo **) NULL); |
| /* |
| Generate magick list. |
| */ |
| LockSemaphoreInfo(magick_semaphore); |
| ResetSplayTreeIterator(magick_list); |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| for (i=0; p != (const MagickInfo *) NULL; ) |
| { |
| if ((GetMagickStealth(p) == MagickFalse) && |
| (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse)) |
| formats[i++]=p; |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| } |
| UnlockSemaphoreInfo(magick_semaphore); |
| qsort((void *) formats,(size_t) i,sizeof(*formats),MagickInfoCompare); |
| formats[i]=(MagickInfo *) NULL; |
| *number_formats=(size_t) i; |
| return(formats); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k L i s t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickList() returns any image formats that match the specified pattern. |
| % |
| % The format of the GetMagickList function is: |
| % |
| % char **GetMagickList(const char *pattern,size_t *number_formats, |
| % ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o pattern: Specifies a pointer to a text string containing a pattern. |
| % |
| % o number_formats: This integer returns the number of formats in the list. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| extern "C" { |
| #endif |
| |
| static int MagickCompare(const void *x,const void *y) |
| { |
| register const char |
| **p, |
| **q; |
| |
| p=(const char **) x; |
| q=(const char **) y; |
| return(LocaleCompare(*p,*q)); |
| } |
| |
| #if defined(__cplusplus) || defined(c_plusplus) |
| } |
| #endif |
| |
| MagickExport char **GetMagickList(const char *pattern, |
| size_t *number_formats,ExceptionInfo *exception) |
| { |
| char |
| **formats; |
| |
| register const MagickInfo |
| *p; |
| |
| register ssize_t |
| i; |
| |
| /* |
| Allocate magick list. |
| */ |
| assert(pattern != (char *) NULL); |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern); |
| assert(number_formats != (size_t *) NULL); |
| *number_formats=0; |
| p=GetMagickInfo("*",exception); |
| if (p == (const MagickInfo *) NULL) |
| return((char **) NULL); |
| formats=(char **) AcquireQuantumMemory((size_t) |
| GetNumberOfNodesInSplayTree(magick_list)+1UL,sizeof(*formats)); |
| if (formats == (char **) NULL) |
| return((char **) NULL); |
| LockSemaphoreInfo(magick_semaphore); |
| ResetSplayTreeIterator(magick_list); |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| for (i=0; p != (const MagickInfo *) NULL; ) |
| { |
| if ((GetMagickStealth(p) == MagickFalse) && |
| (GlobExpression(p->name,pattern,MagickFalse) != MagickFalse)) |
| formats[i++]=ConstantString(p->name); |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| } |
| UnlockSemaphoreInfo(magick_semaphore); |
| qsort((void *) formats,(size_t) i,sizeof(*formats),MagickCompare); |
| formats[i]=(char *) NULL; |
| *number_formats=(size_t) i; |
| return(formats); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k M i m e T y p e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickMimeType() returns the magick mime type. |
| % |
| % The format of the GetMagickMimeType method is: |
| % |
| % const char *GetMagickMimeType(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport const char *GetMagickMimeType(const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(magick_info->mime_type); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k M o d u l e N a m e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickModuleName() returns the magick module name. |
| % |
| % The format of the GetMagickModuleName method is: |
| % |
| % const char *GetMagickModuleName(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport const char *GetMagickModuleName(const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(magick_info->magick_module); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k N a m e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickName() returns the magick name. |
| % |
| % The format of the GetMagickName method is: |
| % |
| % const char *GetMagickName(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport const char *GetMagickName(const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(magick_info->name); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % G e t M a g i c k P r e c i s i o n % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickPrecision() returns the maximum number of significant digits to be |
| % printed. |
| % |
| % The format of the GetMagickPrecision method is: |
| % |
| % int GetMagickPrecision(void) |
| % |
| */ |
| MagickExport int GetMagickPrecision(void) |
| { |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| return(SetMagickPrecision(0)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k R a w S u p p o r t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickRawSupport() returns the MagickTrue if the coder is a raw format. |
| % |
| % The format of the GetMagickRawSupport method is: |
| % |
| % MagickBooleanType GetMagickRawSupport(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickRawSupport( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderRawSupportFlag) == 0) ? MagickFalse : |
| MagickTrue); |
| } |
| |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k S t e a l t h % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickStealth() returns MagickTrue if the magick is a stealth coder. |
| % |
| % The format of the GetMagickStealth method is: |
| % |
| % MagickBooleanType GetMagickStealth(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickStealth(const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderStealthFlag) == 0) ? MagickFalse : |
| MagickTrue); |
| } |
| |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + G e t M a g i c k U s e E x t e n s i o n % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % GetMagickUseExtension() returns MagickTrue if the magick can use the |
| % extension of the format if the format return by IsImageFormatHandler uses |
| % the same coder. |
| % |
| % The format of the GetMagickUseExtension method is: |
| % |
| % MagickBooleanType GetMagickUseExtension(const MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: The magick info. |
| % |
| */ |
| MagickExport MagickBooleanType GetMagickUseExtension( |
| const MagickInfo *magick_info) |
| { |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| return(((magick_info->flags & CoderUseExtensionFlag) == 0) ? MagickFalse : |
| MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + I s M a g i c k T r e e I n s t a n t i a t e d % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsMagickTreeInstantiated() determines if the magick tree is instantiated. |
| % If not, it instantiates the tree and returns it. |
| % |
| % The format of the IsMagickTreeInstantiated() method is: |
| % |
| % IsMagickTreeInstantiated(Exceptioninfo *exception) |
| % |
| % A description of each parameter follows. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| |
| static void *DestroyMagickNode(void *magick_info) |
| { |
| register MagickInfo |
| *p; |
| |
| p=(MagickInfo *) magick_info; |
| if (p->magick_module != (char *) NULL) |
| p->magick_module=DestroyString(p->magick_module); |
| if (p->note != (char *) NULL) |
| p->note=DestroyString(p->note); |
| if (p->mime_type != (char *) NULL) |
| p->mime_type=DestroyString(p->mime_type); |
| if (p->version != (char *) NULL) |
| p->version=DestroyString(p->version); |
| if (p->description != (char *) NULL) |
| p->description=DestroyString(p->description); |
| if (p->name != (char *) NULL) |
| p->name=DestroyString(p->name); |
| if (p->semaphore != (SemaphoreInfo *) NULL) |
| RelinquishSemaphoreInfo(&p->semaphore); |
| return(RelinquishMagickMemory(p)); |
| } |
| |
| static MagickBooleanType IsMagickTreeInstantiated(ExceptionInfo *exception) |
| { |
| (void) exception; |
| if (magick_list_initialized == MagickFalse) |
| { |
| if (magick_semaphore == (SemaphoreInfo *) NULL) |
| ActivateSemaphoreInfo(&magick_semaphore); |
| LockSemaphoreInfo(magick_semaphore); |
| if (magick_list_initialized == MagickFalse) |
| { |
| magick_list=NewSplayTree(CompareSplayTreeString,(void *(*)(void *)) |
| NULL,DestroyMagickNode); |
| #if defined(MAGICKCORE_MODULES_SUPPORT) |
| (void) GetModuleInfo((char *) NULL,exception); |
| #endif |
| magick_list_initialized=MagickTrue; |
| } |
| UnlockSemaphoreInfo(magick_semaphore); |
| } |
| return(magick_list != (SplayTreeInfo *) NULL ? MagickTrue : MagickFalse); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + I s M a g i c k C o n f l i c t % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsMagickConflict() returns MagickTrue if the image format conflicts with a |
| % logical drive (.e.g. X:). |
| % |
| % The format of the IsMagickConflict method is: |
| % |
| % MagickBooleanType IsMagickConflict(const char *magick) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick: Specifies the image format. |
| % |
| */ |
| MagickPrivate MagickBooleanType IsMagickConflict(const char *magick) |
| { |
| assert(magick != (char *) NULL); |
| #if defined(macintosh) |
| return(MACIsMagickConflict(magick)); |
| #elif defined(vms) |
| return(VMSIsMagickConflict(magick)); |
| #elif defined(MAGICKCORE_WINDOWS_SUPPORT) |
| return(NTIsMagickConflict(magick)); |
| #else |
| return(MagickFalse); |
| #endif |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + L i s t M a g i c k I n f o % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ListMagickInfo() lists the image formats to a file. |
| % |
| % The format of the ListMagickInfo method is: |
| % |
| % MagickBooleanType ListMagickInfo(FILE *file,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows. |
| % |
| % o file: A file handle. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| MagickExport MagickBooleanType ListMagickInfo(FILE *file, |
| ExceptionInfo *exception) |
| { |
| const MagickInfo |
| **magick_info; |
| |
| register ssize_t |
| i; |
| |
| size_t |
| number_formats; |
| |
| ssize_t |
| j; |
| |
| if (file == (FILE *) NULL) |
| file=stdout; |
| magick_info=GetMagickInfoList("*",&number_formats,exception); |
| if (magick_info == (const MagickInfo **) NULL) |
| return(MagickFalse); |
| ClearMagickException(exception); |
| #if !defined(MAGICKCORE_MODULES_SUPPORT) |
| (void) FormatLocaleFile(file," Format Mode Description\n"); |
| #else |
| (void) FormatLocaleFile(file," Format Module Mode Description\n"); |
| #endif |
| (void) FormatLocaleFile(file, |
| "--------------------------------------------------------" |
| "-----------------------\n"); |
| for (i=0; i < (ssize_t) number_formats; i++) |
| { |
| if (GetMagickStealth(magick_info[i]) != MagickFalse) |
| continue; |
| (void) FormatLocaleFile(file,"%9s%c ", |
| magick_info[i]->name != (char *) NULL ? magick_info[i]->name : "", |
| GetMagickBlobSupport(magick_info[i]) != MagickFalse ? '*' : ' '); |
| #if defined(MAGICKCORE_MODULES_SUPPORT) |
| { |
| char |
| magick_module[MagickPathExtent]; |
| |
| *magick_module='\0'; |
| if (magick_info[i]->magick_module != (char *) NULL) |
| (void) CopyMagickString(magick_module,magick_info[i]->magick_module, |
| MagickPathExtent); |
| (void) ConcatenateMagickString(magick_module," ", |
| MagickPathExtent); |
| magick_module[9]='\0'; |
| (void) FormatLocaleFile(file,"%9s ",magick_module); |
| } |
| #endif |
| (void) FormatLocaleFile(file,"%c%c%c ",magick_info[i]->decoder ? 'r' : '-', |
| magick_info[i]->encoder ? 'w' : '-',magick_info[i]->encoder != NULL && |
| GetMagickAdjoin(magick_info[i]) != MagickFalse ? '+' : '-'); |
| if (magick_info[i]->description != (char *) NULL) |
| (void) FormatLocaleFile(file," %s",magick_info[i]->description); |
| if (magick_info[i]->version != (char *) NULL) |
| (void) FormatLocaleFile(file," (%s)",magick_info[i]->version); |
| (void) FormatLocaleFile(file,"\n"); |
| if (magick_info[i]->note != (char *) NULL) |
| { |
| char |
| **text; |
| |
| text=StringToList(magick_info[i]->note); |
| if (text != (char **) NULL) |
| { |
| for (j=0; text[j] != (char *) NULL; j++) |
| { |
| (void) FormatLocaleFile(file," %s\n",text[j]); |
| text[j]=DestroyString(text[j]); |
| } |
| text=(char **) RelinquishMagickMemory(text); |
| } |
| } |
| } |
| (void) FormatLocaleFile(file,"\n* native blob support\n"); |
| (void) FormatLocaleFile(file,"r read support\n"); |
| (void) FormatLocaleFile(file,"w write support\n"); |
| (void) FormatLocaleFile(file,"+ support for multiple images\n"); |
| (void) fflush(file); |
| magick_info=(const MagickInfo **) RelinquishMagickMemory((void *) |
| magick_info); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % I s M a g i c k C o r e I n s t a n t i a t e d % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsMagickCoreInstantiated() returns MagickFalse if the ImageMagick |
| % environment has not been instantiated; the ImageMagick environment |
| % has been instantiated when MagickCoreGenesis() has been called but |
| % MagickDestroy() has not been called. |
| % |
| % The format of the IsMagickCoreInstantiated method is: |
| % |
| % MagickBooleanType IsMagickCoreInstantiated(void) |
| % |
| */ |
| MagickExport MagickBooleanType IsMagickCoreInstantiated(void) |
| { |
| return(magickcore_instantiated); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + M a g i c k C o m p o n e n t G e n e s i s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % MagickComponentGenesis() instantiates the magick component. |
| % |
| % The format of the MagickComponentGenesis method is: |
| % |
| % MagickBooleanType MagickComponentGenesis(void) |
| % |
| */ |
| MagickPrivate MagickBooleanType MagickComponentGenesis(void) |
| { |
| if (magick_semaphore == (SemaphoreInfo *) NULL) |
| magick_semaphore=AcquireSemaphoreInfo(); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + M a g i c k C o m p o n e n t T e r m i n u s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % MagickComponentTerminus() destroys the magick component. |
| % |
| % The format of the MagickComponentTerminus method is: |
| % |
| % void MagickComponentTerminus(void) |
| % |
| */ |
| MagickPrivate void MagickComponentTerminus(void) |
| { |
| if (magick_semaphore == (SemaphoreInfo *) NULL) |
| ActivateSemaphoreInfo(&magick_semaphore); |
| LockSemaphoreInfo(magick_semaphore); |
| if (magick_list != (SplayTreeInfo *) NULL) |
| { |
| magick_list=DestroySplayTree(magick_list); |
| magick_list_initialized=MagickFalse; |
| } |
| UnlockSemaphoreInfo(magick_semaphore); |
| RelinquishSemaphoreInfo(&magick_semaphore); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % M a g i c k C o r e G e n e s i s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % MagickCoreGenesis() initializes the MagickCore environment. |
| % |
| % The format of the MagickCoreGenesis function is: |
| % |
| % MagickCoreGenesis(const char *path, |
| % const MagickBooleanType establish_signal_handlers) |
| % |
| % A description of each parameter follows: |
| % |
| % o path: the execution path of the current ImageMagick client. |
| % |
| % o establish_signal_handlers: set to MagickTrue to use MagickCore's own |
| % signal handlers for common signals. |
| % |
| */ |
| |
| static SignalHandler *SetMagickSignalHandler(int signal_number, |
| SignalHandler *handler) |
| { |
| #if defined(MAGICKCORE_HAVE_SIGACTION) && defined(MAGICKCORE_HAVE_SIGEMPTYSET) |
| int |
| status; |
| |
| sigset_t |
| mask; |
| |
| struct sigaction |
| action, |
| previous_action; |
| |
| sigemptyset(&mask); |
| sigaddset(&mask,signal_number); |
| sigprocmask(SIG_BLOCK,&mask,NULL); |
| action.sa_mask=mask; |
| action.sa_handler=handler; |
| action.sa_flags=0; |
| #if defined(SA_INTERRUPT) |
| action.sa_flags|=SA_INTERRUPT; |
| #endif |
| #if defined(SA_ONSTACK) |
| action.sa_flags|=SA_ONSTACK; |
| #endif |
| status=sigaction(signal_number,&action,&previous_action); |
| if (status < 0) |
| return(SIG_ERR); |
| sigprocmask(SIG_UNBLOCK,&mask,NULL); |
| return(previous_action.sa_handler); |
| #else |
| return(signal(signal_number,handler)); |
| #endif |
| } |
| |
| static void MagickSignalHandler(int signal_number) |
| { |
| if (magickcore_signal_in_progress != MagickFalse) |
| (void) SetMagickSignalHandler(signal_number,signal_handlers[signal_number]); |
| magickcore_signal_in_progress=MagickTrue; |
| AsynchronousResourceComponentTerminus(); |
| #if defined(SIGQUIT) |
| if (signal_number == SIGQUIT) |
| abort(); |
| #endif |
| #if defined(SIGABRT) |
| if (signal_number == SIGABRT) |
| abort(); |
| #endif |
| #if defined(SIGBUS) |
| if (signal_number == SIGBUS) |
| abort(); |
| #endif |
| #if defined(SIGFPE) |
| if (signal_number == SIGFPE) |
| abort(); |
| #endif |
| #if defined(SIGSEGV) |
| if (signal_number == SIGSEGV) |
| abort(); |
| #endif |
| #if !defined(MAGICKCORE_HAVE__EXIT) |
| exit(signal_number); |
| #else |
| #if defined(SIGHUP) |
| if (signal_number == SIGHUP) |
| _exit(signal_number); |
| #endif |
| #if defined(SIGINT) |
| if (signal_number == SIGINT) |
| _exit(signal_number); |
| #endif |
| #if defined(MAGICKCORE_HAVE_RAISE) |
| if (signal_handlers[signal_number] != MagickSignalHandler) |
| raise(signal_number); |
| #endif |
| _exit(signal_number); /* do not invoke registered atexit() methods */ |
| #endif |
| } |
| |
| static SignalHandler *RegisterMagickSignalHandler(int signal_number) |
| { |
| SignalHandler |
| *handler; |
| |
| handler=SetMagickSignalHandler(signal_number,MagickSignalHandler); |
| if (handler == SIG_ERR) |
| return(handler); |
| if (handler != SIG_DFL) |
| handler=SetMagickSignalHandler(signal_number,handler); |
| else |
| (void) LogMagickEvent(ConfigureEvent,GetMagickModule(), |
| "Register handler for signal: %d",signal_number); |
| return(handler); |
| } |
| |
| MagickExport void MagickCoreGenesis(const char *path, |
| const MagickBooleanType establish_signal_handlers) |
| { |
| char |
| *events, |
| execution_path[MagickPathExtent], |
| filename[MagickPathExtent]; |
| |
| /* |
| Initialize the Magick environment. |
| */ |
| InitializeMagickMutex(); |
| LockMagickMutex(); |
| if (magickcore_instantiated != MagickFalse) |
| { |
| UnlockMagickMutex(); |
| return; |
| } |
| (void) SemaphoreComponentGenesis(); |
| (void) ExceptionComponentGenesis(); |
| (void) LogComponentGenesis(); |
| (void) LocaleComponentGenesis(); |
| (void) RandomComponentGenesis(); |
| events=GetEnvironmentValue("MAGICK_DEBUG"); |
| if (events != (char *) NULL) |
| { |
| (void) SetLogEventMask(events); |
| events=DestroyString(events); |
| } |
| #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
| NTWindowsGenesis(); |
| #endif |
| /* |
| Set client name and execution path. |
| */ |
| #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
| if ((path != (const char *) NULL) && (IsPathAccessible(path) != MagickFalse)) |
| #else |
| if ((path != (const char *) NULL) && (*path == *DirectorySeparator) && |
| (IsPathAccessible(path) != MagickFalse)) |
| #endif |
| (void) CopyMagickString(execution_path,path,MagickPathExtent); |
| else |
| (void) GetExecutionPath(execution_path,MagickPathExtent); |
| GetPathComponent(execution_path,TailPath,filename); |
| (void) SetClientName(filename); |
| GetPathComponent(execution_path,HeadPath,execution_path); |
| (void) SetClientPath(execution_path); |
| if (establish_signal_handlers != MagickFalse) |
| { |
| /* |
| Set signal handlers. |
| */ |
| #if defined(SIGABRT) |
| if (signal_handlers[SIGABRT] == (SignalHandler *) NULL) |
| signal_handlers[SIGABRT]=RegisterMagickSignalHandler(SIGABRT); |
| #endif |
| #if defined(SIGBUS) |
| if (signal_handlers[SIGBUS] == (SignalHandler *) NULL) |
| signal_handlers[SIGBUS]=RegisterMagickSignalHandler(SIGBUS); |
| #endif |
| #if defined(SIGSEGV) |
| if (signal_handlers[SIGSEGV] == (SignalHandler *) NULL) |
| signal_handlers[SIGSEGV]=RegisterMagickSignalHandler(SIGSEGV); |
| #endif |
| #if defined(SIGFPE) |
| if (signal_handlers[SIGFPE] == (SignalHandler *) NULL) |
| signal_handlers[SIGFPE]=RegisterMagickSignalHandler(SIGFPE); |
| #endif |
| #if defined(SIGHUP) |
| if (signal_handlers[SIGHUP] == (SignalHandler *) NULL) |
| signal_handlers[SIGHUP]=RegisterMagickSignalHandler(SIGHUP); |
| #endif |
| #if defined(SIGINT) |
| if (signal_handlers[SIGINT] == (SignalHandler *) NULL) |
| signal_handlers[SIGINT]=RegisterMagickSignalHandler(SIGINT); |
| #endif |
| #if defined(SIGQUIT) |
| if (signal_handlers[SIGQUIT] == (SignalHandler *) NULL) |
| signal_handlers[SIGQUIT]=RegisterMagickSignalHandler(SIGQUIT); |
| #endif |
| #if defined(SIGTERM) |
| if (signal_handlers[SIGTERM] == (SignalHandler *) NULL) |
| signal_handlers[SIGTERM]=RegisterMagickSignalHandler(SIGTERM); |
| #endif |
| #if defined(SIGXCPU) |
| if (signal_handlers[SIGXCPU] == (SignalHandler *) NULL) |
| signal_handlers[SIGXCPU]=RegisterMagickSignalHandler(SIGXCPU); |
| #endif |
| #if defined(SIGXFSZ) |
| if (signal_handlers[SIGXFSZ] == (SignalHandler *) NULL) |
| signal_handlers[SIGXFSZ]=RegisterMagickSignalHandler(SIGXFSZ); |
| #endif |
| } |
| /* |
| Instantiate magick resources. |
| */ |
| (void) ConfigureComponentGenesis(); |
| (void) PolicyComponentGenesis(); |
| #if MAGICKCORE_ZERO_CONFIGURATION_SUPPORT |
| (void) ZeroConfigurationPolicy; |
| #endif |
| (void) CacheComponentGenesis(); |
| (void) ResourceComponentGenesis(); |
| (void) CoderComponentGenesis(); |
| (void) MagickComponentGenesis(); |
| #if defined(MAGICKCORE_MODULES_SUPPORT) |
| (void) ModuleComponentGenesis(); |
| #endif |
| (void) DelegateComponentGenesis(); |
| (void) MagicComponentGenesis(); |
| (void) ColorComponentGenesis(); |
| (void) TypeComponentGenesis(); |
| (void) MimeComponentGenesis(); |
| (void) AnnotateComponentGenesis(); |
| #if defined(MAGICKCORE_X11_DELEGATE) |
| (void) XComponentGenesis(); |
| #endif |
| (void) RegistryComponentGenesis(); |
| (void) MonitorComponentGenesis(); |
| magickcore_instantiated=MagickTrue; |
| UnlockMagickMutex(); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % M a g i c k C o r e T e r m i n u s % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % MagickCoreTerminus() destroys the MagickCore environment. |
| % |
| % The format of the MagickCoreTerminus function is: |
| % |
| % MagickCoreTerminus(void) |
| % |
| */ |
| MagickExport void MagickCoreTerminus(void) |
| { |
| if (magickcore_instantiated == MagickFalse) |
| return; |
| MonitorComponentTerminus(); |
| RegistryComponentTerminus(); |
| #if defined(MAGICKCORE_X11_DELEGATE) |
| XComponentTerminus(); |
| #endif |
| #if defined(MAGICKCORE_XML_DELEGATE) |
| xmlCleanupParser(); |
| #endif |
| AnnotateComponentTerminus(); |
| MimeComponentTerminus(); |
| TypeComponentTerminus(); |
| #if defined(MAGICKCORE_OPENCL_SUPPORT) |
| OpenCLTerminus(); |
| #endif |
| ColorComponentTerminus(); |
| #if defined(MAGICKCORE_WINDOWS_SUPPORT) |
| NTWindowsTerminus(); |
| #endif |
| MagicComponentTerminus(); |
| DelegateComponentTerminus(); |
| MagickComponentTerminus(); |
| #if !defined(MAGICKCORE_BUILD_MODULES) |
| UnregisterStaticModules(); |
| #endif |
| #if defined(MAGICKCORE_MODULES_SUPPORT) |
| ModuleComponentTerminus(); |
| #endif |
| CoderComponentTerminus(); |
| ResourceComponentTerminus(); |
| CacheComponentTerminus(); |
| PolicyComponentTerminus(); |
| ConfigureComponentTerminus(); |
| RandomComponentTerminus(); |
| LocaleComponentTerminus(); |
| LogComponentTerminus(); |
| ExceptionComponentTerminus(); |
| SemaphoreComponentTerminus(); |
| magickcore_instantiated=MagickFalse; |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + R e g i s t e r M a g i c k I n f o % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterMagickInfo() adds attributes for a particular image format to the |
| % list of supported formats. The attributes include the image format name, |
| % a method to read and/or write the format, whether the format supports the |
| % saving of more than one frame to the same file or blob, whether the format |
| % supports native in-memory I/O, and a brief description of the format. |
| % |
| % The format of the RegisterMagickInfo method is: |
| % |
| % MagickInfo *RegisterMagickInfo(MagickInfo *magick_info) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick_info: the magick info. |
| % |
| */ |
| MagickExport MagickBooleanType RegisterMagickInfo(MagickInfo *magick_info) |
| { |
| MagickBooleanType |
| status; |
| |
| /* |
| Register a new image format. |
| */ |
| assert(magick_info != (MagickInfo *) NULL); |
| assert(magick_info->signature == MagickCoreSignature); |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",magick_info->name); |
| if (magick_list == (SplayTreeInfo *) NULL) |
| return(MagickFalse); |
| if ((GetMagickDecoderThreadSupport(magick_info) == MagickFalse) || |
| (GetMagickEncoderThreadSupport(magick_info) == MagickFalse)) |
| magick_info->semaphore=AcquireSemaphoreInfo(); |
| status=AddValueToSplayTree(magick_list,magick_info->name,magick_info); |
| return(status); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + R e s e t M a g i c k P r e c i s i o n % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ResetMagickPrecision() resets the magick_precision value. |
| % |
| % The format of the ResetMagickPrecision method is: |
| % |
| % void ResetMagickPrecision(void) |
| % |
| */ |
| MagickPrivate void ResetMagickPrecision(void) |
| { |
| magick_precision=0; |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % S e t M a g i c k P r e c i s i o n % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % SetMagickPrecision() sets the maximum number of significant digits to be |
| % printed. |
| % |
| % An input argument of 0 returns the current precision setting. |
| % |
| % A negative value forces the precision to reset to a default value according |
| % to the environment variable "MAGICK_PRECISION", the current 'policy' |
| % configuration setting, or the default value of '6', in that order. |
| % |
| % The format of the SetMagickPrecision method is: |
| % |
| % int SetMagickPrecision(const int precision) |
| % |
| % A description of each parameter follows: |
| % |
| % o precision: set the maximum number of significant digits to be printed. |
| % |
| */ |
| MagickExport int SetMagickPrecision(const int precision) |
| { |
| #define MagickPrecision (4+MAGICKCORE_QUANTUM_DEPTH/8) |
| |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| if (precision > 0) |
| magick_precision=precision; |
| if ((precision < 0) || (magick_precision == 0)) |
| { |
| char |
| *limit; |
| |
| /* |
| Precision reset, or it has not been set yet |
| */ |
| magick_precision=MagickPrecision; |
| limit=GetEnvironmentValue("MAGICK_PRECISION"); |
| if (limit == (char *) NULL) |
| limit=GetPolicyValue("system:precision"); |
| if (limit != (char *) NULL) |
| { |
| magick_precision=StringToInteger(limit); |
| limit=DestroyString(limit); |
| } |
| } |
| return(magick_precision); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| + U n r e g i s t e r M a g i c k I n f o % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterMagickInfo() removes a name from the magick info list. It returns |
| % MagickFalse if the name does not exist in the list otherwise MagickTrue. |
| % |
| % The format of the UnregisterMagickInfo method is: |
| % |
| % MagickBooleanType UnregisterMagickInfo(const char *name) |
| % |
| % A description of each parameter follows: |
| % |
| % o name: a character string that represents the image format we are |
| % looking for. |
| % |
| */ |
| MagickExport MagickBooleanType UnregisterMagickInfo(const char *name) |
| { |
| register const MagickInfo |
| *p; |
| |
| MagickBooleanType |
| status; |
| |
| assert(name != (const char *) NULL); |
| if (magick_list == (SplayTreeInfo *) NULL) |
| return(MagickFalse); |
| if (GetNumberOfNodesInSplayTree(magick_list) == 0) |
| return(MagickFalse); |
| LockSemaphoreInfo(magick_semaphore); |
| ResetSplayTreeIterator(magick_list); |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| while (p != (const MagickInfo *) NULL) |
| { |
| if (LocaleCompare(p->name,name) == 0) |
| break; |
| p=(const MagickInfo *) GetNextValueInSplayTree(magick_list); |
| } |
| status=DeleteNodeByValueFromSplayTree(magick_list,p); |
| UnlockSemaphoreInfo(magick_semaphore); |
| return(status); |
| } |
