text: /*
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %                            RRRR    AAA   W   W                              %
  %                            R   R  A   A  W   W                              %
  %                            RRRR   AAAAA  W W W                              %
  %                            R R    A   A  WW WW                              %
  %                            R  R   A   A  W   W                              %
  %                                                                             %
  %                                                                             %
  %                       Read/Write RAW Image Format                           %
  %                                                                             %
  %                              Software Design                                %
  %                                   Cristy                                    %
  %                                 July 1992                                   %
  %                                                                             %
  %                                                                             %
  %  Copyright 1999-2018 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://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/constitute.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/monitor.h"
  #include "MagickCore/monitor-private.h"
  #include "MagickCore/pixel-accessor.h"
  #include "MagickCore/quantum-private.h"
  #include "MagickCore/quantum-private.h"
  #include "MagickCore/static.h"
  #include "MagickCore/statistic.h"
  #include "MagickCore/string_.h"
  #include "MagickCore/module.h"
  
  /*
    Forward declarations.
  */
  static MagickBooleanType
    WriteRAWImage(const ImageInfo *,Image *,ExceptionInfo *);
  
  /*
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %   R e a d R A W I m a g e                                                   %
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  %  ReadRAWImage() reads an image of raw samples 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 ReadRAWImage method is:
  %
  %      Image *ReadRAWImage(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 *ReadRAWImage(const ImageInfo *image_info,ExceptionInfo *exception)
  {
    const unsigned char
      *pixels;
  
    Image
      *canvas_image,
      *image;
  
    MagickBooleanType
      status;
  
    MagickOffsetType
      scene;
  
    QuantumInfo
      *quantum_info;
  
    QuantumType
      quantum_type;
  
    size_t
      length;
  
    ssize_t
      count,
      y;
  
    /*
      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);
    if ((image->columns == 0) || (image->rows == 0))
      ThrowReaderException(OptionError,"MustSpecifyImageSize");
    status=SetImageExtent(image,image->columns,image->rows,exception);
    if (status == MagickFalse)
      return(DestroyImageList(image));
    status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
    if (status == MagickFalse)
      {
        image=DestroyImageList(image);
        return((Image *) NULL);
      }
    if (DiscardBlobBytes(image,(MagickSizeType) image->offset) == MagickFalse)
      ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
        image->filename);
    /*
      Create virtual canvas to support cropping (i.e. image.gray[100x100+10+20]).
    */
    canvas_image=CloneImage(image,image->extract_info.width,1,MagickFalse,
      exception);
    if (canvas_image == (Image *) NULL)
      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
    (void) SetImageVirtualPixelMethod(canvas_image,BlackVirtualPixelMethod,
      exception);
    quantum_type=GrayQuantum;
    quantum_info=AcquireQuantumInfo(image_info,canvas_image);
    if (quantum_info == (QuantumInfo *) NULL)
      {
        canvas_image=DestroyImage(canvas_image);
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
      }
    pixels=(const unsigned char *) NULL;
    if (image_info->number_scenes != 0)
      while (image->scene < image_info->scene)
      {
        /*
          Skip to next image.
        */
        image->scene++;
        length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
        for (y=0; y < (ssize_t) image->rows; y++)
        {
          pixels=(const unsigned char *) ReadBlobStream(image,length,
            GetQuantumPixels(quantum_info),&count);
          if (count != (ssize_t) length)
            break;
        }
      }
    scene=0;
    count=0;
    length=0;
    status=MagickTrue;
    do
    {
      /*
        Read pixels to virtual canvas image then push to image.
      */
      if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
        if (image->scene >= (image_info->scene+image_info->number_scenes-1))
          break;
      status=SetImageExtent(image,image->columns,image->rows,exception);
      if (status == MagickFalse)
        break;
      if (scene == 0)
        {
          length=GetQuantumExtent(canvas_image,quantum_info,quantum_type);
          pixels=(const unsigned char *) ReadBlobStream(image,length,
            GetQuantumPixels(quantum_info),&count);
          if (count != (ssize_t) length)
            break;
        }
      for (y=0; y < (ssize_t) image->extract_info.height; y++)
      {
        register const Quantum
          *magick_restrict p;
  
        register Quantum
          *magick_restrict q;
  
        register ssize_t
          x;
  
        if (count != (ssize_t) length)
          {
            status=MagickFalse;
            ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
              image->filename);
            break;
          }
        q=GetAuthenticPixels(canvas_image,0,0,canvas_image->columns,1,exception);
        if (q == (Quantum *) NULL)
          break;
        length=ImportQuantumPixels(canvas_image,(CacheView *) NULL,quantum_info,
          quantum_type,pixels,exception);
        if (SyncAuthenticPixels(canvas_image,exception) == MagickFalse)
          break;
        if (((y-image->extract_info.y) >= 0) && 
            ((y-image->extract_info.y) < (ssize_t) image->rows))
          {
            p=GetVirtualPixels(canvas_image,canvas_image->extract_info.x,0,
              image->columns,1,exception);
            q=QueueAuthenticPixels(image,0,y-image->extract_info.y,image->columns,
              1,exception);
            if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL))
              break;
            for (x=0; x < (ssize_t) image->columns; x++)
            {
              SetPixelRed(image,GetPixelRed(canvas_image,p),q);
              SetPixelGreen(image,GetPixelGreen(canvas_image,p),q);
              SetPixelBlue(image,GetPixelBlue(canvas_image,p),q);
              p+=GetPixelChannels(canvas_image);
              q+=GetPixelChannels(image);
            }
            if (SyncAuthenticPixels(image,exception) == MagickFalse)
              break;
          }
        if (image->previous == (Image *) NULL)
          {
            status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
              image->rows);
            if (status == MagickFalse)
              break;
          }
        pixels=(const unsigned char *) ReadBlobStream(image,length,
          GetQuantumPixels(quantum_info),&count);
        if (count != (ssize_t) length)
          break;
      }
      SetQuantumImageType(image,quantum_type);
      /*
        Proceed to next image.
      */
      if (image_info->number_scenes != 0)
        if (image->scene >= (image_info->scene+image_info->number_scenes-1))
          break;
      if (count == (ssize_t) length)
        {
          /*
            Allocate next image structure.
          */
          AcquireNextImage(image_info,image,exception);
          if (GetNextImageInList(image) == (Image *) NULL)
            {
              image=DestroyImageList(image);
              return((Image *) NULL);
            }
          image=SyncNextImageInList(image);
          status=SetImageProgress(image,LoadImagesTag,TellBlob(image),
            GetBlobSize(image));
          if (status == MagickFalse)
            break;
        }
      scene++;
    } while (count == (ssize_t) length);
    quantum_info=DestroyQuantumInfo(quantum_info);
    canvas_image=DestroyImage(canvas_image);
    (void) CloseBlob(image);
    if (status == MagickFalse)
      return(DestroyImageList(image));
    return(GetFirstImageInList(image));
  }
  
  /*
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %   R e g i s t e r R A W I m a g e                                           %
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  %  RegisterRAWImage() adds attributes for the RAW 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 RegisterRAWImage method is:
  %
  %      size_t RegisterRAWImage(void)
  %
  */
  ModuleExport size_t RegisterRAWImage(void)
  {
    MagickInfo
      *entry;
  
    entry=AcquireMagickInfo("RAW","R","Raw red samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","C","Raw cyan samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","G","Raw green samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","M","Raw magenta samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","B","Raw blue samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","Y","Raw yellow samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","A","Raw alpha samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","O","Raw opacity samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    entry=AcquireMagickInfo("RAW","K","Raw black samples");
    entry->decoder=(DecodeImageHandler *) ReadRAWImage;
    entry->encoder=(EncodeImageHandler *) WriteRAWImage;
    entry->flags|=CoderRawSupportFlag;
    entry->flags|=CoderEndianSupportFlag;
    entry->format_type=ImplicitFormatType;
    (void) RegisterMagickInfo(entry);
    return(MagickImageCoderSignature);
  }
  
  /*
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %   U n r e g i s t e r R A W I m a g e                                       %
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  %  UnregisterRAWImage() removes format registrations made by the RAW module
  %  from the list of supported formats.
  %
  %  The format of the UnregisterRAWImage method is:
  %
  %      UnregisterRAWImage(void)
  %
  */
  ModuleExport void UnregisterRAWImage(void)
  {
    (void) UnregisterMagickInfo("R");
    (void) UnregisterMagickInfo("C");
    (void) UnregisterMagickInfo("G");
    (void) UnregisterMagickInfo("M");
    (void) UnregisterMagickInfo("B");
    (void) UnregisterMagickInfo("Y");
    (void) UnregisterMagickInfo("A");
    (void) UnregisterMagickInfo("O");
    (void) UnregisterMagickInfo("K");
  }
  
  /*
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %   W r i t e R A W I m a g e                                                 %
  %                                                                             %
  %                                                                             %
  %                                                                             %
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  %
  %  WriteRAWImage() writes an image to a file as raw intensity values.
  %
  %  The format of the WriteRAWImage method is:
  %
  %      MagickBooleanType WriteRAWImage(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 WriteRAWImage(const ImageInfo *image_info,Image *image,
    ExceptionInfo *exception)
  {
    MagickOffsetType
      scene;
  
    QuantumInfo
      *quantum_info;
  
    QuantumType
      quantum_type;
  
    MagickBooleanType
      status;
  
    register const Quantum
      *p;
  
    size_t
      length;
  
    ssize_t
      count,
      y;
  
    unsigned char
      *pixels;
  
    /*
      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);
    assert(exception != (ExceptionInfo *) NULL);
    assert(exception->signature == MagickCoreSignature);
    status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
    if (status == MagickFalse)
      return(status);
    switch (*image->magick)
    {
      case 'A':
      case 'a':
      {
        quantum_type=AlphaQuantum;
        break;
      }
      case 'B':
      case 'b':
      {
        quantum_type=BlueQuantum;
        break;
      }
      case 'C':
      case 'c':
      {
        quantum_type=CyanQuantum;
        if (image->colorspace == CMYKColorspace)
          break;
        ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
      }
      case 'g':
      case 'G':
      {
        quantum_type=GreenQuantum;
        break;
      }
      case 'I':
      case 'i':
      {
        quantum_type=IndexQuantum;
        break;
      }
      case 'K':
      case 'k':
      {
        quantum_type=BlackQuantum;
        if (image->colorspace == CMYKColorspace)
          break;
        ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
      }
      case 'M':
      case 'm':
      {
        quantum_type=MagentaQuantum;
        if (image->colorspace == CMYKColorspace)
          break;
        ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
      }
      case 'o':
      case 'O':
      {
        quantum_type=OpacityQuantum;
        break;
      }
      case 'R':
      case 'r':
      {
        quantum_type=RedQuantum;
        break;
      }
      case 'Y':
      case 'y':
      {
        quantum_type=YellowQuantum;
        if (image->colorspace == CMYKColorspace)
          break;
        ThrowWriterException(ImageError,"ColorSeparatedImageRequired");
      }
      default:
      {
        quantum_type=GrayQuantum;
        break;
      }
    }
    scene=0;
    do
    {
      /*
        Convert image to RAW raster pixels.
      */
      quantum_info=AcquireQuantumInfo(image_info,image);
      if (quantum_info == (QuantumInfo *) NULL)
        ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
      pixels=(unsigned char *) GetQuantumPixels(quantum_info);
      for (y=0; y < (ssize_t) image->rows; y++)
      {
        p=GetVirtualPixels(image,0,y,image->columns,1,exception);
        if (p == (const Quantum *) NULL)
          break;
        length=ExportQuantumPixels(image,(CacheView *) NULL,quantum_info,
          quantum_type,pixels,exception);
        count=WriteBlob(image,length,pixels);
        if (count != (ssize_t) length)
          break;
        if (image->previous == (Image *) NULL)
          {
            status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
              image->rows);
            if (status == MagickFalse)
              break;
          }
      }
      quantum_info=DestroyQuantumInfo(quantum_info);
      if (GetNextImageInList(image) == (Image *) NULL)
        break;
      image=SyncNextImageInList(image);
      status=SetImageProgress(image,SaveImagesTag,scene++,
        GetImageListLength(image));
      if (status == MagickFalse)
        break;
    } while (image_info->adjoin != MagickFalse);
    (void) CloseBlob(image);
    return(MagickTrue);
  }
  