| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % 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 1999-2013 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); |
| 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"); |
| } |