/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % H H AAA L DDDD % % H H A A L D D % % HHHHH AAAAA L D D % % H H A A L D D % % H H A A LLLLL DDDD % % % % % % Create Identity Hald CLUT Image Format % % % % Software Design % % John Cristy % % July 1992 % % % % % % Copyright 1999-2012 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 % % % % http://www.imagemagick.org/script/license.php % % % % Unless required by applicable law or agreed to in writing, software % % distributed under the License is distributed on an "AS IS" BASIS, % % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % % See the License for the specific language governing permissions and % % limitations under the License. % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % */ /* Include declarations. */ #include "MagickCore/studio.h" #include "MagickCore/blob.h" #include "MagickCore/blob-private.h" #include "MagickCore/cache.h" #include "MagickCore/colorspace.h" #include "MagickCore/exception.h" #include "MagickCore/exception-private.h" #include "MagickCore/image.h" #include "MagickCore/image-private.h" #include "MagickCore/list.h" #include "MagickCore/magick.h" #include "MagickCore/memory_.h" #include "MagickCore/module.h" #include "MagickCore/monitor.h" #include "MagickCore/monitor-private.h" #include "MagickCore/pixel-accessor.h" #include "MagickCore/quantum-private.h" #include "MagickCore/resource_.h" #include "MagickCore/static.h" #include "MagickCore/string_.h" #include "MagickCore/string-private.h" #include "MagickCore/thread-private.h" /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e a d H A L D I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % ReadHALDImage() creates a Hald color lookup table image and returns it. It % allocates the memory necessary for the new Image structure and returns a % pointer to the new image. % % The format of the ReadHALDImage method is: % % Image *ReadHALDImage(const ImageInfo *image_info, % ExceptionInfo *exception) % % A description of each parameter follows: % % o image_info: the image info. % % o exception: return any errors or warnings in this structure. % */ static Image *ReadHALDImage(const ImageInfo *image_info, ExceptionInfo *exception) { Image *image; MagickBooleanType status; size_t cube_size, level; ssize_t y; /* Create HALD color lookup table image. */ assert(image_info != (const ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", image_info->filename); assert(exception != (ExceptionInfo *) NULL); assert(exception->signature == MagickSignature); image=AcquireImage(image_info,exception); level=0; if (*image_info->filename != '\0') level=StringToUnsignedLong(image_info->filename); if (level < 2) level=8; status=MagickTrue; cube_size=level*level; image->columns=(size_t) (level*cube_size); image->rows=(size_t) (level*cube_size); #if defined(MAGICKCORE_OPENMP_SUPPORT) #pragma omp parallel for schedule(static,8) shared(status) \ dynamic_number_threads(image,image->columns,image->rows,1) #endif for (y=0; y < (ssize_t) image->rows; y+=(ssize_t) level) { ssize_t blue, green, red; register Quantum *restrict q; if (status == MagickFalse) continue; q=QueueAuthenticPixels(image,0,y,image->columns,(size_t) level, exception); if (q == (Quantum *) NULL) { status=MagickFalse; continue; } blue=y/(ssize_t) level; for (green=0; green < (ssize_t) cube_size; green++) { for (red=0; red < (ssize_t) cube_size; red++) { SetPixelRed(image,ClampToQuantum(QuantumRange*red/(cube_size-1.0)),q); SetPixelGreen(image,ClampToQuantum(QuantumRange*green/(cube_size-1.0)), q); SetPixelBlue(image,ClampToQuantum(QuantumRange*blue/(cube_size-1.0)),q); SetPixelAlpha(image,OpaqueAlpha,q); q+=GetPixelChannels(image); } } if (SyncAuthenticPixels(image,exception) == MagickFalse) status=MagickFalse; } return(GetFirstImageInList(image)); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % R e g i s t e r H A L D I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % RegisterHALDImage() adds attributes for the Hald color lookup table image % format to the list of supported formats. The attributes include the image % format tag, 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 RegisterHALDImage method is: % % size_t RegisterHALDImage(void) % */ ModuleExport size_t RegisterHALDImage(void) { MagickInfo *entry; entry=SetMagickInfo("HALD"); entry->decoder=(DecodeImageHandler *) ReadHALDImage; entry->adjoin=MagickFalse; entry->format_type=ImplicitFormatType; entry->raw=MagickTrue; entry->endian_support=MagickTrue; entry->description=ConstantString("Identity Hald color lookup table image"); (void) RegisterMagickInfo(entry); return(MagickImageCoderSignature); } /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % U n r e g i s t e r H A L D I m a g e % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % UnregisterHALDImage() removes format registrations made by the % HALD module from the list of supported formats. % % The format of the UnregisterHALDImage method is: % % UnregisterHALDImage(void) % */ ModuleExport void UnregisterHALDImage(void) { (void) UnregisterMagickInfo("HALD"); }