| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % PPPP L AAA SSSSS M M AAA % |
| % P P L A A SS MM MM A A % |
| % PPPP L AAAAA SSS M M M AAAAA % |
| % P L A A SS M M A A % |
| % P LLLLL A A SSSSS M M A A % |
| % % |
| % % |
| % Read a Plasma Image. % |
| % % |
| % Software Design % |
| % Cristy % |
| % July 1992 % |
| % % |
| % % |
| % Copyright 1999-2015 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/channel.h" |
| #include "MagickCore/constitute.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/fx.h" |
| #include "MagickCore/image.h" |
| #include "MagickCore/image-private.h" |
| #include "MagickCore/list.h" |
| #include "MagickCore/magick.h" |
| #include "MagickCore/memory_.h" |
| #include "MagickCore/monitor.h" |
| #include "MagickCore/monitor-private.h" |
| #include "MagickCore/pixel-accessor.h" |
| #include "MagickCore/random_.h" |
| #include "MagickCore/random-private.h" |
| #include "MagickCore/signature-private.h" |
| #include "MagickCore/quantum-private.h" |
| #include "MagickCore/static.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/module.h" |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d P L A S M A I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadPlasmaImage creates a plasma fractal image. The image is |
| % initialized to the X server color as specified by the filename. |
| % |
| % The format of the ReadPlasmaImage method is: |
| % |
| % Image *ReadPlasmaImage(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 inline void PlasmaPixel(Image *image,RandomInfo *random_info,double x, |
| double y,ExceptionInfo *exception) |
| { |
| register Quantum |
| *q; |
| |
| q=GetAuthenticPixels(image,(ssize_t) ceil(x-0.5),(ssize_t) ceil(y-0.5),1,1, |
| exception); |
| if (q == (Quantum *) NULL) |
| return; |
| SetPixelRed(image,ScaleShortToQuantum((unsigned short) (65535.0* |
| GetPseudoRandomValue(random_info)+0.5)),q); |
| SetPixelGreen(image,ScaleShortToQuantum((unsigned short) (65535.0* |
| GetPseudoRandomValue(random_info)+0.5)),q); |
| SetPixelBlue(image,ScaleShortToQuantum((unsigned short) (65535.0* |
| GetPseudoRandomValue(random_info)+0.5)),q); |
| (void) SyncAuthenticPixels(image,exception); |
| } |
| |
| static Image *ReadPlasmaImage(const ImageInfo *image_info, |
| ExceptionInfo *exception) |
| { |
| Image |
| *image; |
| |
| ImageInfo |
| *read_info; |
| |
| MagickBooleanType |
| status; |
| |
| register ssize_t |
| x; |
| |
| register Quantum |
| *q; |
| |
| register size_t |
| i; |
| |
| SegmentInfo |
| segment_info; |
| |
| size_t |
| depth, |
| max_depth; |
| |
| ssize_t |
| y; |
| |
| /* |
| Recursively apply plasma to the image. |
| */ |
| read_info=CloneImageInfo(image_info); |
| SetImageInfoBlob(read_info,(void *) NULL,0); |
| (void) FormatLocaleString(read_info->filename,MaxTextExtent, |
| "gradient:%s",image_info->filename); |
| image=ReadImage(read_info,exception); |
| read_info=DestroyImageInfo(read_info); |
| if (image == (Image *) NULL) |
| return((Image *) NULL); |
| (void) SetImageStorageClass(image,DirectClass,exception); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| q=GetAuthenticPixels(image,0,y,image->columns,1,exception); |
| if (q == (Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| SetPixelAlpha(image,QuantumRange/2,q); |
| q+=GetPixelChannels(image); |
| } |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| break; |
| } |
| segment_info.x1=0; |
| segment_info.y1=0; |
| segment_info.x2=(double) image->columns-1; |
| segment_info.y2=(double) image->rows-1; |
| if (LocaleCompare(image_info->filename,"fractal") == 0) |
| { |
| RandomInfo |
| *random_info; |
| |
| /* |
| Seed pixels before recursion. |
| */ |
| (void) SetImageColorspace(image,sRGBColorspace,exception); |
| random_info=AcquireRandomInfo(); |
| PlasmaPixel(image,random_info,segment_info.x1,segment_info.y1,exception); |
| PlasmaPixel(image,random_info,segment_info.x1,(segment_info.y1+ |
| segment_info.y2)/2,exception); |
| PlasmaPixel(image,random_info,segment_info.x1,segment_info.y2,exception); |
| PlasmaPixel(image,random_info,(segment_info.x1+segment_info.x2)/2, |
| segment_info.y1,exception); |
| PlasmaPixel(image,random_info,(segment_info.x1+segment_info.x2)/2, |
| (segment_info.y1+segment_info.y2)/2,exception); |
| PlasmaPixel(image,random_info,(segment_info.x1+segment_info.x2)/2, |
| segment_info.y2,exception); |
| PlasmaPixel(image,random_info,segment_info.x2,segment_info.y1,exception); |
| PlasmaPixel(image,random_info,segment_info.x2,(segment_info.y1+ |
| segment_info.y2)/2,exception); |
| PlasmaPixel(image,random_info,segment_info.x2,segment_info.y2,exception); |
| random_info=DestroyRandomInfo(random_info); |
| } |
| i=(size_t) MagickMax(image->columns,image->rows)/2; |
| for (max_depth=0; i != 0; max_depth++) |
| i>>=1; |
| for (depth=1; ; depth++) |
| { |
| if (PlasmaImage(image,&segment_info,0,depth,exception) != MagickFalse) |
| break; |
| status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) depth, |
| max_depth); |
| if (status == MagickFalse) |
| break; |
| } |
| return(GetFirstImageInList(image)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r P L A S M A I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterPLASMAImage() adds attributes for the Plasma 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 RegisterPLASMAImage method is: |
| % |
| % size_t RegisterPLASMAImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterPLASMAImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=SetMagickInfo("PLASMA"); |
| entry->decoder=(DecodeImageHandler *) ReadPlasmaImage; |
| entry->adjoin=MagickFalse; |
| entry->format_type=ImplicitFormatType; |
| entry->description=ConstantString("Plasma fractal image"); |
| entry->module=ConstantString("PLASMA"); |
| (void) RegisterMagickInfo(entry); |
| entry=SetMagickInfo("FRACTAL"); |
| entry->decoder=(DecodeImageHandler *) ReadPlasmaImage; |
| entry->adjoin=MagickFalse; |
| entry->format_type=ImplicitFormatType; |
| entry->description=ConstantString("Plasma fractal image"); |
| entry->module=ConstantString("PLASMA"); |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r P L A S M A I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterPLASMAImage() removes format registrations made by the |
| % PLASMA module from the list of supported formats. |
| % |
| % The format of the UnregisterPLASMAImage method is: |
| % |
| % UnregisterPLASMAImage(void) |
| % |
| */ |
| ModuleExport void UnregisterPLASMAImage(void) |
| { |
| (void) UnregisterMagickInfo("FRACTAL"); |
| (void) UnregisterMagickInfo("PLASMA"); |
| } |