2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
10 % H H A A LLLLL DDDD %
13 % Create Identity Hald CLUT Image Format %
20 % Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
42 #include "magick/studio.h"
43 #include "magick/blob.h"
44 #include "magick/blob-private.h"
45 #include "magick/cache.h"
46 #include "magick/colorspace.h"
47 #include "magick/exception.h"
48 #include "magick/exception-private.h"
49 #include "magick/image.h"
50 #include "magick/image-private.h"
51 #include "magick/list.h"
52 #include "magick/magick.h"
53 #include "magick/memory_.h"
54 #include "magick/module.h"
55 #include "magick/monitor.h"
56 #include "magick/monitor-private.h"
57 #include "magick/quantum-private.h"
58 #include "magick/static.h"
59 #include "magick/string_.h"
60 #include "magick/string-private.h"
63 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
67 % R e a d H A L D I m a g e %
71 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
73 % ReadHALDImage() creates a Hald color lookup table image and returns it. It
74 % allocates the memory necessary for the new Image structure and returns a
75 % pointer to the new image.
77 % The format of the ReadHALDImage method is:
79 % Image *ReadHALDImage(const ImageInfo *image_info,
80 % ExceptionInfo *exception)
82 % A description of each parameter follows:
84 % o image_info: the image info.
86 % o exception: return any errors or warnings in this structure.
89 static Image *ReadHALDImage(const ImageInfo *image_info,
90 ExceptionInfo *exception)
109 Create HALD color lookup table image.
111 assert(image_info != (const ImageInfo *) NULL);
112 assert(image_info->signature == MagickSignature);
113 if (image_info->debug != MagickFalse)
114 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
115 image_info->filename);
116 assert(exception != (ExceptionInfo *) NULL);
117 assert(exception->signature == MagickSignature);
118 image=AcquireImage(image_info);
120 if (*image_info->filename != '\0')
121 level=StringToUnsignedLong(image_info->filename);
125 cube_size=level*level;
126 image->columns=(unsigned long) (level*cube_size);
127 image->rows=(unsigned long) (level*cube_size);
128 image_view=AcquireCacheView(image);
129 #if defined(MAGICKCORE_OPENMP_SUPPORT) && (_OPENMP > 200505)
130 #pragma omp parallel for shared(status)
132 for (y=0; y < (long) image->rows; y+=(long) level)
142 if (status == MagickFalse)
144 q=QueueCacheViewAuthenticPixels(image_view,0,y,image->columns,
145 (unsigned long) level,exception);
146 if (q == (PixelPacket *) NULL)
152 for (green=0; green < (long) cube_size; green++)
154 for (red=0; red < (long) cube_size; red++)
156 q->red=ClampToQuantum(QuantumRange*red/(cube_size-1.0));
157 q->green=ClampToQuantum(QuantumRange*green/(cube_size-1.0));
158 q->blue=ClampToQuantum(QuantumRange*blue/(cube_size-1.0));
159 SetOpacityPixelComponent(q,OpaqueOpacity);
163 if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
166 image_view=DestroyCacheView(image_view);
167 return(GetFirstImageInList(image));
171 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
175 % R e g i s t e r H A L D I m a g e %
179 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
181 % RegisterHALDImage() adds attributes for the Hald color lookup table image
182 % format to the list of supported formats. The attributes include the image
183 % format tag, a method to read and/or write the format, whether the format
184 % supports the saving of more than one frame to the same file or blob, whether
185 % the format supports native in-memory I/O, and a brief description of the
188 % The format of the RegisterHALDImage method is:
190 % unsigned long RegisterHALDImage(void)
193 ModuleExport unsigned long RegisterHALDImage(void)
198 entry=SetMagickInfo("HALD");
199 entry->decoder=(DecodeImageHandler *) ReadHALDImage;
200 entry->adjoin=MagickFalse;
201 entry->format_type=ExplicitFormatType;
202 entry->raw=MagickTrue;
203 entry->endian_support=MagickTrue;
204 entry->description=ConstantString("Identity Hald color lookup table image");
205 (void) RegisterMagickInfo(entry);
206 return(MagickImageCoderSignature);
210 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
214 % U n r e g i s t e r H A L D I m a g e %
218 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
220 % UnregisterHALDImage() removes format registrations made by the
221 % HALD module from the list of supported formats.
223 % The format of the UnregisterHALDImage method is:
225 % UnregisterHALDImage(void)
228 ModuleExport void UnregisterHALDImage(void)
230 (void) UnregisterMagickInfo("HALD");