| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % TTTTT X X TTTTT % |
| % T X X T % |
| % T X T % |
| % T X X T % |
| % T X X T % |
| % % |
| % % |
| % Render Text Onto A Canvas Image. % |
| % % |
| % Software Design % |
| % Cristy % |
| % July 1992 % |
| % % |
| % % |
| % 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.h" |
| #include "MagickCore/attribute.h" |
| #include "MagickCore/blob.h" |
| #include "MagickCore/blob-private.h" |
| #include "MagickCore/cache.h" |
| #include "MagickCore/color.h" |
| #include "MagickCore/color-private.h" |
| #include "MagickCore/colorspace.h" |
| #include "MagickCore/constitute.h" |
| #include "MagickCore/draw.h" |
| #include "MagickCore/exception.h" |
| #include "MagickCore/exception-private.h" |
| #include "MagickCore/geometry.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/option.h" |
| #include "MagickCore/pixel-accessor.h" |
| #include "MagickCore/quantum-private.h" |
| #include "MagickCore/static.h" |
| #include "MagickCore/statistic.h" |
| #include "MagickCore/string_.h" |
| #include "MagickCore/module.h" |
| #include "coders/txt.h" |
| |
| /* |
| Forward declarations. |
| */ |
| static MagickBooleanType |
| WriteTXTImage(const ImageInfo *,Image *,ExceptionInfo *); |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % I s T X T % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % IsTXT() returns MagickTrue if the image format type, identified by the magick |
| % string, is TXT. |
| % |
| % The format of the IsTXT method is: |
| % |
| % MagickBooleanType IsTXT(const unsigned char *magick,const size_t length) |
| % |
| % A description of each parameter follows: |
| % |
| % o magick: compare image format pattern against these bytes. |
| % |
| % o length: Specifies the length of the magick string. |
| % |
| */ |
| static MagickBooleanType IsTXT(const unsigned char *magick,const size_t length) |
| { |
| char |
| colorspace[MagickPathExtent]; |
| |
| ssize_t |
| count; |
| |
| unsigned long |
| columns, |
| depth, |
| rows; |
| |
| if (length < 40) |
| return(MagickFalse); |
| if (LocaleNCompare((const char *) magick,MagickTXTID, |
| strlen(MagickTXTID)) != 0) |
| return(MagickFalse); |
| count=(ssize_t) sscanf((const char *) magick+32,"%lu,%lu,%lu,%32s",&columns, |
| &rows,&depth,colorspace); |
| if (count != 4) |
| return(MagickFalse); |
| return(MagickTrue); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d T E X T I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadTEXTImage() reads a text file and returns it as an image. It |
| % allocates the memory necessary for the new Image structure and returns a |
| % pointer to the new image. |
| % |
| % The format of the ReadTEXTImage method is: |
| % |
| % Image *ReadTEXTImage(const ImageInfo *image_info,Image *image, |
| % char *text,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows: |
| % |
| % o image_info: the image info. |
| % |
| % o image: the image. |
| % |
| % o text: the text storage buffer. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static Image *ReadTEXTImage(const ImageInfo *image_info, |
| ExceptionInfo *exception) |
| { |
| char |
| filename[MagickPathExtent], |
| geometry[MagickPathExtent], |
| *p, |
| text[MagickPathExtent]; |
| |
| DrawInfo |
| *draw_info; |
| |
| Image |
| *image, |
| *texture; |
| |
| MagickBooleanType |
| status; |
| |
| PointInfo |
| delta; |
| |
| RectangleInfo |
| page; |
| |
| ssize_t |
| offset; |
| |
| TypeMetric |
| metrics; |
| |
| /* |
| Open image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| if (image_info->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| image_info->filename); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickCoreSignature); |
| image=AcquireImage(image_info,exception); |
| status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| (void) memset(text,0,sizeof(text)); |
| (void) ReadBlobString(image,text); |
| /* |
| Set the page geometry. |
| */ |
| delta.x=DefaultResolution; |
| delta.y=DefaultResolution; |
| if ((image->resolution.x == 0.0) || (image->resolution.y == 0.0)) |
| { |
| GeometryInfo |
| geometry_info; |
| |
| MagickStatusType |
| flags; |
| |
| flags=ParseGeometry(PSDensityGeometry,&geometry_info); |
| image->resolution.x=geometry_info.rho; |
| image->resolution.y=geometry_info.sigma; |
| if ((flags & SigmaValue) == 0) |
| image->resolution.y=image->resolution.x; |
| } |
| page.width=612; |
| page.height=792; |
| page.x=43; |
| page.y=43; |
| if (image_info->page != (char *) NULL) |
| (void) ParseAbsoluteGeometry(image_info->page,&page); |
| /* |
| Initialize Image structure. |
| */ |
| image->columns=(size_t) floor((((double) page.width*image->resolution.x)/ |
| delta.x)+0.5); |
| image->rows=(size_t) floor((((double) page.height*image->resolution.y)/ |
| delta.y)+0.5); |
| status=SetImageExtent(image,image->columns,image->rows,exception); |
| if (status != MagickFalse) |
| status=ResetImagePixels(image,exception); |
| if (status == MagickFalse) |
| return(DestroyImageList(image)); |
| image->page.x=0; |
| image->page.y=0; |
| texture=(Image *) NULL; |
| if (image_info->texture != (char *) NULL) |
| { |
| ImageInfo |
| *read_info; |
| |
| read_info=CloneImageInfo(image_info); |
| SetImageInfoBlob(read_info,(void *) NULL,0); |
| (void) CopyMagickString(read_info->filename,image_info->texture, |
| MagickPathExtent); |
| texture=ReadImage(read_info,exception); |
| read_info=DestroyImageInfo(read_info); |
| } |
| /* |
| Annotate the text image. |
| */ |
| (void) SetImageBackgroundColor(image,exception); |
| draw_info=CloneDrawInfo(image_info,(DrawInfo *) NULL); |
| (void) CloneString(&draw_info->text,image_info->filename); |
| (void) FormatLocaleString(geometry,MagickPathExtent,"%gx%g%+g%+g",(double) |
| image->columns,(double) image->rows,(double) page.x,(double) page.y); |
| (void) CloneString(&draw_info->geometry,geometry); |
| status=GetTypeMetrics(image,draw_info,&metrics,exception); |
| if (status == MagickFalse) |
| { |
| draw_info=DestroyDrawInfo(draw_info); |
| ThrowReaderException(TypeError,"UnableToGetTypeMetrics"); |
| } |
| page.y=(ssize_t) ceil((double) page.y+metrics.ascent-0.5); |
| (void) FormatLocaleString(geometry,MagickPathExtent,"%gx%g%+g%+g",(double) |
| image->columns,(double) image->rows,(double) page.x,(double) page.y); |
| (void) CloneString(&draw_info->geometry,geometry); |
| (void) CopyMagickString(filename,image_info->filename,MagickPathExtent); |
| if (*draw_info->text != '\0') |
| *draw_info->text='\0'; |
| p=text; |
| for (offset=2*page.y; p != (char *) NULL; ) |
| { |
| /* |
| Annotate image with text. |
| */ |
| (void) ConcatenateString(&draw_info->text,text); |
| (void) ConcatenateString(&draw_info->text,"\n"); |
| offset+=(ssize_t) (metrics.ascent-metrics.descent); |
| if (image->previous == (Image *) NULL) |
| { |
| status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) offset, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| p=ReadBlobString(image,text); |
| if ((offset < (ssize_t) image->rows) && (p != (char *) NULL)) |
| continue; |
| if (texture != (Image *) NULL) |
| { |
| MagickProgressMonitor |
| progress_monitor; |
| |
| progress_monitor=SetImageProgressMonitor(image, |
| (MagickProgressMonitor) NULL,image->client_data); |
| (void) TextureImage(image,texture,exception); |
| (void) SetImageProgressMonitor(image,progress_monitor, |
| image->client_data); |
| } |
| (void) AnnotateImage(image,draw_info,exception); |
| if (p == (char *) NULL) |
| break; |
| /* |
| Page is full-- allocate next image structure. |
| */ |
| *draw_info->text='\0'; |
| offset=2*page.y; |
| AcquireNextImage(image_info,image,exception); |
| if (GetNextImageInList(image) == (Image *) NULL) |
| { |
| status=MagickFalse; |
| break; |
| } |
| image->next->columns=image->columns; |
| image->next->rows=image->rows; |
| image=SyncNextImageInList(image); |
| (void) CopyMagickString(image->filename,filename,MagickPathExtent); |
| (void) SetImageBackgroundColor(image,exception); |
| status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| GetBlobSize(image)); |
| if (status == MagickFalse) |
| break; |
| } |
| if (texture != (Image *) NULL) |
| { |
| MagickProgressMonitor |
| progress_monitor; |
| |
| progress_monitor=SetImageProgressMonitor(image, |
| (MagickProgressMonitor) NULL,image->client_data); |
| (void) TextureImage(image,texture,exception); |
| (void) SetImageProgressMonitor(image,progress_monitor,image->client_data); |
| } |
| (void) AnnotateImage(image,draw_info,exception); |
| if (texture != (Image *) NULL) |
| texture=DestroyImage(texture); |
| draw_info=DestroyDrawInfo(draw_info); |
| (void) CloseBlob(image); |
| if (status == MagickFalse) |
| return(DestroyImageList(image)); |
| return(GetFirstImageInList(image)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e a d T X T I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % ReadTXTImage() reads a text file and returns it as an image. It allocates |
| % the memory necessary for the new Image structure and returns a pointer to |
| % the new image. |
| % |
| % The format of the ReadTXTImage method is: |
| % |
| % Image *ReadTXTImage(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 *ReadTXTImage(const ImageInfo *image_info,ExceptionInfo *exception) |
| { |
| char |
| colorspace[MagickPathExtent], |
| text[MagickPathExtent]; |
| |
| double |
| max_value, |
| x_offset, |
| y_offset; |
| |
| Image |
| *image; |
| |
| PixelInfo |
| pixel; |
| |
| MagickBooleanType |
| status; |
| |
| QuantumAny |
| range; |
| |
| register ssize_t |
| i, |
| x; |
| |
| register Quantum |
| *q; |
| |
| ssize_t |
| count, |
| type, |
| y; |
| |
| unsigned long |
| depth, |
| height, |
| width; |
| |
| /* |
| Open image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| if (image_info->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| image_info->filename); |
| assert(exception != (ExceptionInfo *) NULL); |
| assert(exception->signature == MagickCoreSignature); |
| image=AcquireImage(image_info,exception); |
| status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| if (status == MagickFalse) |
| { |
| image=DestroyImageList(image); |
| return((Image *) NULL); |
| } |
| (void) memset(text,0,sizeof(text)); |
| (void) ReadBlobString(image,text); |
| if (LocaleNCompare((char *) text,MagickTXTID,strlen(MagickTXTID)) != 0) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| x_offset=(-1.0); |
| y_offset=(-1.0); |
| do |
| { |
| width=0; |
| height=0; |
| max_value=0.0; |
| *colorspace='\0'; |
| count=(ssize_t) sscanf(text+32,"%lu,%lu,%lf,%32s",&width,&height,&max_value, |
| colorspace); |
| if ((count != 4) || (width == 0) || (height == 0) || (max_value == 0.0)) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| image->columns=width; |
| image->rows=height; |
| if ((max_value == 0.0) || (max_value > 18446744073709551615.0)) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| for (depth=1; (GetQuantumRange(depth)+1.0) < max_value; depth++) ; |
| image->depth=depth; |
| status=SetImageExtent(image,image->columns,image->rows,exception); |
| if (status != MagickFalse) |
| status=ResetImagePixels(image,exception); |
| if (status == MagickFalse) |
| return(DestroyImageList(image)); |
| LocaleLower(colorspace); |
| i=(ssize_t) strlen(colorspace)-1; |
| image->alpha_trait=UndefinedPixelTrait; |
| if ((i > 0) && (colorspace[i] == 'a')) |
| { |
| colorspace[i]='\0'; |
| image->alpha_trait=BlendPixelTrait; |
| } |
| type=ParseCommandOption(MagickColorspaceOptions,MagickFalse,colorspace); |
| if (type < 0) |
| ThrowReaderException(CorruptImageError,"ImproperImageHeader"); |
| (void) SetImageColorspace(image,(ColorspaceType) type,exception); |
| (void) SetImageBackgroundColor(image,exception); |
| GetPixelInfo(image,&pixel); |
| range=GetQuantumRange(image->depth); |
| status=MagickTrue; |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| double |
| alpha, |
| black, |
| blue, |
| green, |
| red; |
| |
| if (status == MagickFalse) |
| break; |
| red=0.0; |
| green=0.0; |
| blue=0.0; |
| black=0.0; |
| alpha=0.0; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| if (ReadBlobString(image,text) == (char *) NULL) |
| { |
| status=MagickFalse; |
| break; |
| } |
| switch (image->colorspace) |
| { |
| case LinearGRAYColorspace: |
| case GRAYColorspace: |
| { |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| count=(ssize_t) sscanf(text,"%lf,%lf: (%lf%*[%,]%lf%*[%,]", |
| &x_offset,&y_offset,&red,&alpha); |
| green=red; |
| blue=red; |
| break; |
| } |
| count=(ssize_t) sscanf(text,"%lf,%lf: (%lf%*[%,]",&x_offset, |
| &y_offset,&red); |
| green=red; |
| blue=red; |
| break; |
| } |
| case CMYKColorspace: |
| { |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| count=(ssize_t) sscanf(text, |
| "%lf,%lf: (%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]", |
| &x_offset,&y_offset,&red,&green,&blue,&black,&alpha); |
| break; |
| } |
| count=(ssize_t) sscanf(text, |
| "%lf,%lf: (%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]",&x_offset, |
| &y_offset,&red,&green,&blue,&black); |
| break; |
| } |
| default: |
| { |
| if (image->alpha_trait != UndefinedPixelTrait) |
| { |
| count=(ssize_t) sscanf(text, |
| "%lf,%lf: (%lf%*[%,]%lf%*[%,]%lf%*[%,]%lf%*[%,]", |
| &x_offset,&y_offset,&red,&green,&blue,&alpha); |
| break; |
| } |
| count=(ssize_t) sscanf(text,"%lf,%lf: (%lf%*[%,]%lf%*[%,]%lf%*[%,]", |
| &x_offset,&y_offset,&red,&green,&blue); |
| break; |
| } |
| } |
| if (strchr(text,'%') != (char *) NULL) |
| { |
| red*=0.01*range; |
| green*=0.01*range; |
| blue*=0.01*range; |
| black*=0.01*range; |
| alpha*=0.01*range; |
| } |
| if (image->colorspace == LabColorspace) |
| { |
| green+=(range+1)/2.0; |
| blue+=(range+1)/2.0; |
| } |
| pixel.red=(MagickRealType) ScaleAnyToQuantum((QuantumAny) |
| MagickMax(red+0.5,0.0),range); |
| pixel.green=(MagickRealType) ScaleAnyToQuantum((QuantumAny) |
| MagickMax(green+0.5,0.0),range); |
| pixel.blue=(MagickRealType) ScaleAnyToQuantum((QuantumAny) |
| MagickMax(blue+0.5,0.0),range); |
| pixel.black=(MagickRealType) ScaleAnyToQuantum((QuantumAny) |
| MagickMax(black+0.5,0.0),range); |
| pixel.alpha=(MagickRealType) ScaleAnyToQuantum((QuantumAny) |
| MagickMax(alpha+0.5,0.0),range); |
| q=GetAuthenticPixels(image,(ssize_t) x_offset,(ssize_t) y_offset,1,1, |
| exception); |
| if (q == (Quantum *) NULL) |
| continue; |
| SetPixelViaPixelInfo(image,&pixel,q); |
| if (SyncAuthenticPixels(image,exception) == MagickFalse) |
| { |
| status=MagickFalse; |
| break; |
| } |
| } |
| } |
| if (status == MagickFalse) |
| break; |
| *text='\0'; |
| (void) ReadBlobString(image,text); |
| if (LocaleNCompare((char *) text,MagickTXTID,strlen(MagickTXTID)) == 0) |
| { |
| /* |
| Allocate next image structure. |
| */ |
| AcquireNextImage(image_info,image,exception); |
| if (GetNextImageInList(image) == (Image *) NULL) |
| { |
| status=MagickFalse; |
| break; |
| } |
| image=SyncNextImageInList(image); |
| status=SetImageProgress(image,LoadImagesTag,TellBlob(image), |
| GetBlobSize(image)); |
| if (status == MagickFalse) |
| break; |
| } |
| } while (LocaleNCompare((char *) text,MagickTXTID,strlen(MagickTXTID)) == 0); |
| (void) CloseBlob(image); |
| if (status == MagickFalse) |
| (void) ThrowMagickException(exception,GetMagickModule(),CorruptImageWarning, |
| "InsufficientImageDataInFile","`%s'",image->filename); |
| return(GetFirstImageInList(image)); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % R e g i s t e r T X T I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % RegisterTXTImage() adds attributes for the TXT 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 RegisterTXTImage method is: |
| % |
| % size_t RegisterTXTImage(void) |
| % |
| */ |
| ModuleExport size_t RegisterTXTImage(void) |
| { |
| MagickInfo |
| *entry; |
| |
| entry=AcquireMagickInfo("TXT","SPARSE-COLOR","Sparse Color"); |
| entry->encoder=(EncodeImageHandler *) WriteTXTImage; |
| entry->flags|=CoderRawSupportFlag; |
| entry->flags|=CoderEndianSupportFlag; |
| (void) RegisterMagickInfo(entry); |
| entry=AcquireMagickInfo("TXT","TEXT","Text"); |
| entry->decoder=(DecodeImageHandler *) ReadTEXTImage; |
| entry->format_type=ImplicitFormatType; |
| entry->flags|=CoderRawSupportFlag; |
| entry->flags|=CoderEndianSupportFlag; |
| (void) RegisterMagickInfo(entry); |
| entry=AcquireMagickInfo("TXT","TXT","Text"); |
| entry->decoder=(DecodeImageHandler *) ReadTXTImage; |
| entry->encoder=(EncodeImageHandler *) WriteTXTImage; |
| entry->magick=(IsImageFormatHandler *) IsTXT; |
| (void) RegisterMagickInfo(entry); |
| return(MagickImageCoderSignature); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % U n r e g i s t e r T X T I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % UnregisterTXTImage() removes format registrations made by the |
| % TXT module from the list of supported format. |
| % |
| % The format of the UnregisterTXTImage method is: |
| % |
| % UnregisterTXTImage(void) |
| % |
| */ |
| ModuleExport void UnregisterTXTImage(void) |
| { |
| (void) UnregisterMagickInfo("SPARSE-COLOR"); |
| (void) UnregisterMagickInfo("TEXT"); |
| (void) UnregisterMagickInfo("TXT"); |
| } |
| |
| /* |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % % |
| % % |
| % % |
| % W r i t e T X T I m a g e % |
| % % |
| % % |
| % % |
| %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| % |
| % WriteTXTImage writes the pixel values as text numbers. |
| % |
| % The format of the WriteTXTImage method is: |
| % |
| % MagickBooleanType WriteTXTImage(const ImageInfo *image_info, |
| % Image *image,ExceptionInfo *exception) |
| % |
| % A description of each parameter follows. |
| % |
| % o image_info: the image info. |
| % |
| % o image: The image. |
| % |
| % o exception: return any errors or warnings in this structure. |
| % |
| */ |
| static MagickBooleanType WriteTXTImage(const ImageInfo *image_info,Image *image, |
| ExceptionInfo *exception) |
| { |
| char |
| buffer[MagickPathExtent], |
| colorspace[MagickPathExtent], |
| tuple[MagickPathExtent]; |
| |
| MagickBooleanType |
| status; |
| |
| MagickOffsetType |
| scene; |
| |
| PixelInfo |
| pixel; |
| |
| register const Quantum |
| *p; |
| |
| register ssize_t |
| x; |
| |
| size_t |
| imageListLength; |
| |
| ssize_t |
| y; |
| |
| /* |
| Open output image file. |
| */ |
| assert(image_info != (const ImageInfo *) NULL); |
| assert(image_info->signature == MagickCoreSignature); |
| assert(image != (Image *) NULL); |
| assert(image->signature == MagickCoreSignature); |
| if (image->debug != MagickFalse) |
| (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| status=OpenBlob(image_info,image,WriteBlobMode,exception); |
| if (status == MagickFalse) |
| return(status); |
| scene=0; |
| imageListLength=GetImageListLength(image); |
| do |
| { |
| ComplianceType |
| compliance; |
| |
| const char |
| *value; |
| |
| (void) CopyMagickString(colorspace,CommandOptionToMnemonic( |
| MagickColorspaceOptions,(ssize_t) image->colorspace),MagickPathExtent); |
| LocaleLower(colorspace); |
| image->depth=GetImageQuantumDepth(image,MagickTrue); |
| if (image->alpha_trait != UndefinedPixelTrait) |
| (void) ConcatenateMagickString(colorspace,"a",MagickPathExtent); |
| compliance=NoCompliance; |
| value=GetImageOption(image_info,"txt:compliance"); |
| if (value != (char *) NULL) |
| compliance=(ComplianceType) ParseCommandOption(MagickComplianceOptions, |
| MagickFalse,value); |
| if (LocaleCompare(image_info->magick,"SPARSE-COLOR") != 0) |
| { |
| size_t |
| depth; |
| |
| depth=compliance == SVGCompliance ? image->depth : |
| MAGICKCORE_QUANTUM_DEPTH; |
| (void) FormatLocaleString(buffer,MagickPathExtent, |
| "# ImageMagick pixel enumeration: %.20g,%.20g,%.20g,%s\n",(double) |
| image->columns,(double) image->rows,(double) GetQuantumRange(depth), |
| colorspace); |
| (void) WriteBlobString(image,buffer); |
| } |
| GetPixelInfo(image,&pixel); |
| for (y=0; y < (ssize_t) image->rows; y++) |
| { |
| p=GetVirtualPixels(image,0,y,image->columns,1,exception); |
| if (p == (const Quantum *) NULL) |
| break; |
| for (x=0; x < (ssize_t) image->columns; x++) |
| { |
| GetPixelInfoPixel(image,p,&pixel); |
| if (LocaleCompare(image_info->magick,"SPARSE-COLOR") == 0) |
| { |
| /* |
| Sparse-color format. |
| */ |
| if (GetPixelAlpha(image,p) == (Quantum) OpaqueAlpha) |
| { |
| GetColorTuple(&pixel,MagickFalse,tuple); |
| (void) FormatLocaleString(buffer,MagickPathExtent, |
| "%.20g,%.20g,",(double) x,(double) y); |
| (void) WriteBlobString(image,buffer); |
| (void) WriteBlobString(image,tuple); |
| (void) WriteBlobString(image," "); |
| } |
| p+=GetPixelChannels(image); |
| continue; |
| } |
| (void) FormatLocaleString(buffer,MagickPathExtent,"%.20g,%.20g: ", |
| (double) x,(double) y); |
| (void) WriteBlobString(image,buffer); |
| (void) CopyMagickString(tuple,"(",MagickPathExtent); |
| if ((pixel.colorspace == LinearGRAYColorspace) || |
| (pixel.colorspace == GRAYColorspace)) |
| ConcatenateColorComponent(&pixel,GrayPixelChannel,compliance,tuple); |
| else |
| { |
| ConcatenateColorComponent(&pixel,RedPixelChannel,compliance,tuple); |
| (void) ConcatenateMagickString(tuple,",",MagickPathExtent); |
| ConcatenateColorComponent(&pixel,GreenPixelChannel,compliance, |
| tuple); |
| (void) ConcatenateMagickString(tuple,",",MagickPathExtent); |
| ConcatenateColorComponent(&pixel,BluePixelChannel,compliance, |
| tuple); |
| } |
| if (pixel.colorspace == CMYKColorspace) |
| { |
| (void) ConcatenateMagickString(tuple,",",MagickPathExtent); |
| ConcatenateColorComponent(&pixel,BlackPixelChannel,compliance, |
| tuple); |
| } |
| if (pixel.alpha_trait != UndefinedPixelTrait) |
| { |
| (void) ConcatenateMagickString(tuple,",",MagickPathExtent); |
| ConcatenateColorComponent(&pixel,AlphaPixelChannel,compliance, |
| tuple); |
| } |
| (void) ConcatenateMagickString(tuple,")",MagickPathExtent); |
| (void) WriteBlobString(image,tuple); |
| (void) WriteBlobString(image," "); |
| GetColorTuple(&pixel,MagickTrue,tuple); |
| (void) FormatLocaleString(buffer,MagickPathExtent,"%s",tuple); |
| (void) WriteBlobString(image,buffer); |
| (void) WriteBlobString(image," "); |
| (void) QueryColorname(image,&pixel,SVGCompliance,tuple,exception); |
| (void) WriteBlobString(image,tuple); |
| (void) WriteBlobString(image,"\n"); |
| p+=GetPixelChannels(image); |
| } |
| status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y, |
| image->rows); |
| if (status == MagickFalse) |
| break; |
| } |
| if (GetNextImageInList(image) == (Image *) NULL) |
| break; |
| image=SyncNextImageInList(image); |
| status=SetImageProgress(image,SaveImagesTag,scene++,imageListLength); |
| if (status == MagickFalse) |
| break; |
| } while (image_info->adjoin != MagickFalse); |
| (void) CloseBlob(image); |
| return(MagickTrue); |
| } |
