Exemplo n.º 1
0
static inline double GetFITSPixel(Image *image,int bits_per_pixel)
{
    switch (image->depth >> 3)
    {
    case 1:
        return((double) ReadBlobByte(image));
    case 2:
        return((double) ((short) ReadBlobShort(image)));
    case 4:
    {
        if (bits_per_pixel > 0)
            return((double) ((int) ReadBlobLong(image)));
        return((double) ReadBlobFloat(image));
    }
    case 8:
    {
        if (bits_per_pixel > 0)
            return((double) ((MagickOffsetType) ReadBlobLongLong(image)));
    }
    default:
        break;
    }
    return(ReadBlobDouble(image));
}
Exemplo n.º 2
0
static inline Quantum ReadVIPSPixelNONE(Image *image,
  const VIPSBandFormat format,const VIPSType type)
{
  switch(type)
  {
    case VIPSTypeB_W:
    case VIPSTypeRGB:
      {
        unsigned char
          c;

        switch(format)
        {
          case VIPSBandFormatUCHAR:
          case VIPSBandFormatCHAR:
            c=(unsigned char) ReadBlobByte(image);
            break;
          case VIPSBandFormatUSHORT:
          case VIPSBandFormatSHORT:
            c=(unsigned char) ReadBlobShort(image);
            break;
          case VIPSBandFormatUINT:
          case VIPSBandFormatINT:
            c=(unsigned char) ReadBlobLong(image);
            break;
          case VIPSBandFormatFLOAT:
            c=(unsigned char) ReadBlobFloat(image);
            break;
          case VIPSBandFormatDOUBLE:
            c=(unsigned char) ReadBlobDouble(image);
            break;
          default:
            c=0;
            break;
        }
        return(ScaleCharToQuantum(c));
      }
    case VIPSTypeGREY16:
    case VIPSTypeRGB16:
      {
        unsigned short
          s;

        switch(format)
        {
          case VIPSBandFormatUSHORT:
          case VIPSBandFormatSHORT:
            s=(unsigned short) ReadBlobShort(image);
            break;
          case VIPSBandFormatUINT:
          case VIPSBandFormatINT:
            s=(unsigned short) ReadBlobLong(image);
            break;
          case VIPSBandFormatFLOAT:
            s=(unsigned short) ReadBlobFloat(image);
            break;
          case VIPSBandFormatDOUBLE:
            s=(unsigned short) ReadBlobDouble(image);
            break;
          default:
            s=0;
            break;
        }
        return(ScaleShortToQuantum(s));
      }
    case VIPSTypeCMYK:
    case VIPSTypesRGB:
      switch(format)
      {
        case VIPSBandFormatUCHAR:
        case VIPSBandFormatCHAR:
          return(ScaleCharToQuantum((unsigned char) ReadBlobByte(image)));
        case VIPSBandFormatUSHORT:
        case VIPSBandFormatSHORT:
          return(ScaleShortToQuantum(ReadBlobShort(image)));
        case VIPSBandFormatUINT:
        case VIPSBandFormatINT:
          return(ScaleLongToQuantum(ReadBlobLong(image)));
        case VIPSBandFormatFLOAT:
          return((Quantum) ((float) QuantumRange*(ReadBlobFloat(image)/1.0)));
        case VIPSBandFormatDOUBLE:
          return((Quantum) ((double) QuantumRange*(ReadBlobDouble(
            image)/1.0)));
        default:
          return((Quantum) 0);
      }
    default:
      return((Quantum) 0);
  }
}
Exemplo n.º 3
0
static Image *ReadCINImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
#define MonoColorType  1
#define RGBColorType  3

    CINInfo
    cin;

    Image
    *image;

    MagickBooleanType
    status;

    MagickOffsetType
    offset;

    QuantumInfo
    *quantum_info;

    QuantumType
    quantum_type;

    register ssize_t
    i;

    register Quantum
    *q;

    size_t
    length;

    ssize_t
    count,
    y;

    unsigned char
    magick[4],
           *pixels;

    /*
      Open image file.
    */
    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);
    status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
    if (status == MagickFalse)
    {
        image=DestroyImageList(image);
        return((Image *) NULL);
    }
    /*
      File information.
    */
    offset=0;
    count=ReadBlob(image,4,magick);
    offset+=count;
    if ((count != 4) ||
            ((LocaleNCompare((char *) magick,"\200\052\137\327",4) != 0)))
        ThrowReaderException(CorruptImageError,"ImproperImageHeader");
    image->endian=(magick[0] == 0x80) && (magick[1] == 0x2a) &&
                  (magick[2] == 0x5f) && (magick[3] == 0xd7) ? MSBEndian : LSBEndian;
    cin.file.image_offset=ReadBlobLong(image);
    offset+=4;
    cin.file.generic_length=ReadBlobLong(image);
    offset+=4;
    cin.file.industry_length=ReadBlobLong(image);
    offset+=4;
    cin.file.user_length=ReadBlobLong(image);
    offset+=4;
    cin.file.file_size=ReadBlobLong(image);
    offset+=4;
    offset+=ReadBlob(image,sizeof(cin.file.version),(unsigned char *)
                     cin.file.version);
    (void) SetImageProperty(image,"dpx:file.version",cin.file.version,exception);
    offset+=ReadBlob(image,sizeof(cin.file.filename),(unsigned char *)
                     cin.file.filename);
    (void) SetImageProperty(image,"dpx:file.filename",cin.file.filename,
                            exception);
    offset+=ReadBlob(image,sizeof(cin.file.create_date),(unsigned char *)
                     cin.file.create_date);
    (void) SetImageProperty(image,"dpx:file.create_date",cin.file.create_date,
                            exception);
    offset+=ReadBlob(image,sizeof(cin.file.create_time),(unsigned char *)
                     cin.file.create_time);
    (void) SetImageProperty(image,"dpx:file.create_time",cin.file.create_time,
                            exception);
    offset+=ReadBlob(image,sizeof(cin.file.reserve),(unsigned char *)
                     cin.file.reserve);
    /*
      Image information.
    */
    cin.image.orientation=(unsigned char) ReadBlobByte(image);
    offset++;
    if (cin.image.orientation != (unsigned char) (~0U))
        (void) FormatImageProperty(image,"dpx:image.orientation","%d",
                                   cin.image.orientation);
    switch (cin.image.orientation)
    {
    default:
    case 0:
        image->orientation=TopLeftOrientation;
        break;
    case 1:
        image->orientation=TopRightOrientation;
        break;
    case 2:
        image->orientation=BottomLeftOrientation;
        break;
    case 3:
        image->orientation=BottomRightOrientation;
        break;
    case 4:
        image->orientation=LeftTopOrientation;
        break;
    case 5:
        image->orientation=RightTopOrientation;
        break;
    case 6:
        image->orientation=LeftBottomOrientation;
        break;
    case 7:
        image->orientation=RightBottomOrientation;
        break;
    }
    cin.image.number_channels=(unsigned char) ReadBlobByte(image);
    offset++;
    offset+=ReadBlob(image,sizeof(cin.image.reserve1),(unsigned char *)
                     cin.image.reserve1);
    for (i=0; i < 8; i++)
    {
        cin.image.channel[i].designator[0]=(unsigned char) ReadBlobByte(image);
        offset++;
        cin.image.channel[i].designator[1]=(unsigned char) ReadBlobByte(image);
        offset++;
        cin.image.channel[i].bits_per_pixel=(unsigned char) ReadBlobByte(image);
        offset++;
        cin.image.channel[i].reserve=(unsigned char) ReadBlobByte(image);
        offset++;
        cin.image.channel[i].pixels_per_line=ReadBlobLong(image);
        offset+=4;
        cin.image.channel[i].lines_per_image=ReadBlobLong(image);
        offset+=4;
        cin.image.channel[i].min_data=ReadBlobFloat(image);
        offset+=4;
        cin.image.channel[i].min_quantity=ReadBlobFloat(image);
        offset+=4;
        cin.image.channel[i].max_data=ReadBlobFloat(image);
        offset+=4;
        cin.image.channel[i].max_quantity=ReadBlobFloat(image);
        offset+=4;
    }
    cin.image.white_point[0]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.white_point[0]) != MagickFalse)
        image->chromaticity.white_point.x=cin.image.white_point[0];
    cin.image.white_point[1]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.white_point[1]) != MagickFalse)
        image->chromaticity.white_point.y=cin.image.white_point[1];
    cin.image.red_primary_chromaticity[0]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.red_primary_chromaticity[0]) != MagickFalse)
        image->chromaticity.red_primary.x=cin.image.red_primary_chromaticity[0];
    cin.image.red_primary_chromaticity[1]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.red_primary_chromaticity[1]) != MagickFalse)
        image->chromaticity.red_primary.y=cin.image.red_primary_chromaticity[1];
    cin.image.green_primary_chromaticity[0]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.green_primary_chromaticity[0]) != MagickFalse)
        image->chromaticity.red_primary.x=cin.image.green_primary_chromaticity[0];
    cin.image.green_primary_chromaticity[1]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.green_primary_chromaticity[1]) != MagickFalse)
        image->chromaticity.green_primary.y=cin.image.green_primary_chromaticity[1];
    cin.image.blue_primary_chromaticity[0]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.blue_primary_chromaticity[0]) != MagickFalse)
        image->chromaticity.blue_primary.x=cin.image.blue_primary_chromaticity[0];
    cin.image.blue_primary_chromaticity[1]=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.image.blue_primary_chromaticity[1]) != MagickFalse)
        image->chromaticity.blue_primary.y=cin.image.blue_primary_chromaticity[1];
    offset+=ReadBlob(image,sizeof(cin.image.label),(unsigned char *)
                     cin.image.label);
    (void) SetImageProperty(image,"dpx:image.label",cin.image.label,exception);
    offset+=ReadBlob(image,sizeof(cin.image.reserve),(unsigned char *)
                     cin.image.reserve);
    /*
      Image data format information.
    */
    cin.data_format.interleave=(unsigned char) ReadBlobByte(image);
    offset++;
    cin.data_format.packing=(unsigned char) ReadBlobByte(image);
    offset++;
    cin.data_format.sign=(unsigned char) ReadBlobByte(image);
    offset++;
    cin.data_format.sense=(unsigned char) ReadBlobByte(image);
    offset++;
    cin.data_format.line_pad=ReadBlobLong(image);
    offset+=4;
    cin.data_format.channel_pad=ReadBlobLong(image);
    offset+=4;
    offset+=ReadBlob(image,sizeof(cin.data_format.reserve),(unsigned char *)
                     cin.data_format.reserve);
    /*
      Image origination information.
    */
    cin.origination.x_offset=(int) ReadBlobLong(image);
    offset+=4;
    if ((size_t) cin.origination.x_offset != ~0UL)
        (void) FormatImageProperty(image,"dpx:origination.x_offset","%.20g",
                                   (double) cin.origination.x_offset);
    cin.origination.y_offset=(ssize_t) ReadBlobLong(image);
    offset+=4;
    if ((size_t) cin.origination.y_offset != ~0UL)
        (void) FormatImageProperty(image,"dpx:origination.y_offset","%.20g",
                                   (double) cin.origination.y_offset);
    offset+=ReadBlob(image,sizeof(cin.origination.filename),(unsigned char *)
                     cin.origination.filename);
    (void) SetImageProperty(image,"dpx:origination.filename",
                            cin.origination.filename,exception);
    offset+=ReadBlob(image,sizeof(cin.origination.create_date),(unsigned char *)
                     cin.origination.create_date);
    (void) SetImageProperty(image,"dpx:origination.create_date",
                            cin.origination.create_date,exception);
    offset+=ReadBlob(image,sizeof(cin.origination.create_time),(unsigned char *)
                     cin.origination.create_time);
    (void) SetImageProperty(image,"dpx:origination.create_time",
                            cin.origination.create_time,exception);
    offset+=ReadBlob(image,sizeof(cin.origination.device),(unsigned char *)
                     cin.origination.device);
    (void) SetImageProperty(image,"dpx:origination.device",
                            cin.origination.device,exception);
    offset+=ReadBlob(image,sizeof(cin.origination.model),(unsigned char *)
                     cin.origination.model);
    (void) SetImageProperty(image,"dpx:origination.model",cin.origination.model,
                            exception);
    offset+=ReadBlob(image,sizeof(cin.origination.serial),(unsigned char *)
                     cin.origination.serial);
    (void) SetImageProperty(image,"dpx:origination.serial",
                            cin.origination.serial,exception);
    cin.origination.x_pitch=ReadBlobFloat(image);
    offset+=4;
    cin.origination.y_pitch=ReadBlobFloat(image);
    offset+=4;
    cin.origination.gamma=ReadBlobFloat(image);
    offset+=4;
    if (IsFloatDefined(cin.origination.gamma) != MagickFalse)
        image->gamma=cin.origination.gamma;
    offset+=ReadBlob(image,sizeof(cin.origination.reserve),(unsigned char *)
                     cin.origination.reserve);
    if ((cin.file.image_offset > 2048) && (cin.file.user_length != 0))
    {
        int
        c;

        /*
          Image film information.
        */
        cin.film.id=ReadBlobByte(image);
        offset++;
        c=cin.film.id;
        if (c != ~0)
            (void) FormatImageProperty(image,"dpx:film.id","%d",cin.film.id);
        cin.film.type=ReadBlobByte(image);
        offset++;
        c=cin.film.type;
        if (c != ~0)
            (void) FormatImageProperty(image,"dpx:film.type","%d",cin.film.type);
        cin.film.offset=ReadBlobByte(image);
        offset++;
        c=cin.film.offset;
        if (c != ~0)
            (void) FormatImageProperty(image,"dpx:film.offset","%d",
                                       cin.film.offset);
        cin.film.reserve1=ReadBlobByte(image);
        offset++;
        cin.film.prefix=ReadBlobLong(image);
        offset+=4;
        if (cin.film.prefix != ~0UL)
            (void) FormatImageProperty(image,"dpx:film.prefix","%.20g",(double)
                                       cin.film.prefix);
        cin.film.count=ReadBlobLong(image);
        offset+=4;
        offset+=ReadBlob(image,sizeof(cin.film.format),(unsigned char *)
                         cin.film.format);
        (void) SetImageProperty(image,"dpx:film.format",cin.film.format,
                                exception);
        cin.film.frame_position=ReadBlobLong(image);
        offset+=4;
        if (cin.film.frame_position != ~0UL)
            (void) FormatImageProperty(image,"dpx:film.frame_position","%.20g",
                                       (double) cin.film.frame_position);
        cin.film.frame_rate=ReadBlobFloat(image);
        offset+=4;
        if (IsFloatDefined(cin.film.frame_rate) != MagickFalse)
            (void) FormatImageProperty(image,"dpx:film.frame_rate","%g",
                                       cin.film.frame_rate);
        offset+=ReadBlob(image,sizeof(cin.film.frame_id),(unsigned char *)
                         cin.film.frame_id);
        (void) SetImageProperty(image,"dpx:film.frame_id",cin.film.frame_id,
                                exception);
        offset+=ReadBlob(image,sizeof(cin.film.slate_info),(unsigned char *)
                         cin.film.slate_info);
        (void) SetImageProperty(image,"dpx:film.slate_info",cin.film.slate_info,
                                exception);
        offset+=ReadBlob(image,sizeof(cin.film.reserve),(unsigned char *)
                         cin.film.reserve);
    }
    if ((cin.file.image_offset > 2048) && (cin.file.user_length != 0))
    {
        StringInfo
        *profile;

        /*
          User defined data.
        */
        profile=BlobToStringInfo((const void *) NULL,cin.file.user_length);
        if (profile == (StringInfo *) NULL)
            ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        offset+=ReadBlob(image,GetStringInfoLength(profile),
                         GetStringInfoDatum(profile));
        (void) SetImageProfile(image,"dpx:user.data",profile,exception);
        profile=DestroyStringInfo(profile);
    }
    for ( ; offset < (MagickOffsetType) cin.file.image_offset; offset++)
        (void) ReadBlobByte(image);
    image->depth=cin.image.channel[0].bits_per_pixel;
    image->columns=cin.image.channel[0].pixels_per_line;
    image->rows=cin.image.channel[0].lines_per_image;
    if (image_info->ping)
    {
        (void) CloseBlob(image);
        return(image);
    }
    /*
      Convert CIN raster image to pixel packets.
    */
    quantum_info=AcquireQuantumInfo(image_info,image);
    if (quantum_info == (QuantumInfo *) NULL)
        ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
    quantum_info->quantum=32;
    quantum_info->pack=MagickFalse;
    quantum_type=RGBQuantum;
    pixels=GetQuantumPixels(quantum_info);
    length=GetQuantumExtent(image,quantum_info,quantum_type);
    length=GetBytesPerRow(image->columns,3,image->depth,MagickTrue);
    if (cin.image.number_channels == 1)
    {
        quantum_type=GrayQuantum;
        length=GetBytesPerRow(image->columns,1,image->depth,MagickTrue);
    }
    for (y=0; y < (ssize_t) image->rows; y++)
    {
        q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
        if (q == (Quantum *) NULL)
            break;
        count=ReadBlob(image,length,pixels);
        if ((size_t) count != length)
            break;
        (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
                                   quantum_type,pixels,exception);
        if (SyncAuthenticPixels(image,exception) == MagickFalse)
            break;
        if (image->previous == (Image *) NULL)
        {
            status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
                                    image->rows);
            if (status == MagickFalse)
                break;
        }
    }
    SetQuantumImageType(image,quantum_type);
    quantum_info=DestroyQuantumInfo(quantum_info);
    if (EOFBlob(image) != MagickFalse)
        ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
                           image->filename);
    SetImageColorspace(image,LogColorspace,exception);
    (void) CloseBlob(image);
    return(GetFirstImageInList(image));
}
Exemplo n.º 4
0
/*
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                             %
%                                                                             %
%                                                                             %
%   R e a d V I F F I m a g e                                                 %
%                                                                             %
%                                                                             %
%                                                                             %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
%  ReadVIFFImage() reads a Khoros Visualization image file 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 ReadVIFFImage method is:
%
%      Image *ReadVIFFImage(const ImageInfo *image_info,
%        ExceptionInfo *exception)
%
%  A description of each parameter follows:
%
%    o image: Method ReadVIFFImage returns a pointer to the image after
%      reading.  A null image is returned if there is a memory shortage or if
%      the image cannot be read.
%
%    o image_info: the image info.
%
%    o exception: return any errors or warnings in this structure.
%
*/
static Image *ReadVIFFImage(const ImageInfo *image_info,
  ExceptionInfo *exception)
{
#define VFF_CM_genericRGB  15
#define VFF_CM_ntscRGB  1
#define VFF_CM_NONE  0
#define VFF_DEP_DECORDER  0x4
#define VFF_DEP_NSORDER  0x8
#define VFF_DES_RAW  0
#define VFF_LOC_IMPLICIT  1
#define VFF_MAPTYP_NONE  0
#define VFF_MAPTYP_1_BYTE  1
#define VFF_MAPTYP_2_BYTE  2
#define VFF_MAPTYP_4_BYTE  4
#define VFF_MAPTYP_FLOAT  5
#define VFF_MAPTYP_DOUBLE  7
#define VFF_MS_NONE  0
#define VFF_MS_ONEPERBAND  1
#define VFF_MS_SHARED  3
#define VFF_TYP_BIT  0
#define VFF_TYP_1_BYTE  1
#define VFF_TYP_2_BYTE  2
#define VFF_TYP_4_BYTE  4
#define VFF_TYP_FLOAT  5
#define VFF_TYP_DOUBLE  9

  typedef struct _ViffInfo
  {
    unsigned char
      identifier,
      file_type,
      release,
      version,
      machine_dependency,
      reserve[3];

    char
      comment[512];

    unsigned int
      rows,
      columns,
      subrows;

    int
      x_offset,
      y_offset;

    float
      x_bits_per_pixel,
      y_bits_per_pixel;

    unsigned int
      location_type,
      location_dimension,
      number_of_images,
      number_data_bands,
      data_storage_type,
      data_encode_scheme,
      map_scheme,
      map_storage_type,
      map_rows,
      map_columns,
      map_subrows,
      map_enable,
      maps_per_cycle,
      color_space_model;
  } ViffInfo;

  double
    min_value,
    scale_factor,
    value;

  Image
    *image;

  int
    bit;

  MagickBooleanType
    status;

  MagickSizeType
    number_pixels;

  register IndexPacket
    *indexes;

  register ssize_t
    x;

  register PixelPacket
    *q;

  register ssize_t
    i;

  register unsigned char
    *p;

  size_t
    bytes_per_pixel,
    max_packets,
    quantum;

  ssize_t
    count,
    y;

  unsigned char
    *pixels;

  unsigned long
    lsb_first;

  ViffInfo
    viff_info;

  /*
    Open image file.
  */
  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);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == MagickFalse)
    {
      image=DestroyImageList(image);
      return((Image *) NULL);
    }
  /*
    Read VIFF header (1024 bytes).
  */
  count=ReadBlob(image,1,&viff_info.identifier);
  do
  {
    /*
      Verify VIFF identifier.
    */
    if ((count != 1) || ((unsigned char) viff_info.identifier != 0xab))
      ThrowReaderException(CorruptImageError,"NotAVIFFImage");
    /*
      Initialize VIFF image.
    */
    (void) ReadBlob(image,sizeof(viff_info.file_type),&viff_info.file_type);
    (void) ReadBlob(image,sizeof(viff_info.release),&viff_info.release);
    (void) ReadBlob(image,sizeof(viff_info.version),&viff_info.version);
    (void) ReadBlob(image,sizeof(viff_info.machine_dependency),
      &viff_info.machine_dependency);
    (void) ReadBlob(image,sizeof(viff_info.reserve),viff_info.reserve);
    (void) ReadBlob(image,512,(unsigned char *) viff_info.comment);
    viff_info.comment[511]='\0';
    if (strlen(viff_info.comment) > 4)
      (void) SetImageProperty(image,"comment",viff_info.comment);
    if ((viff_info.machine_dependency == VFF_DEP_DECORDER) ||
        (viff_info.machine_dependency == VFF_DEP_NSORDER))
      image->endian=LSBEndian;
    else
      image->endian=MSBEndian;
    viff_info.rows=ReadBlobLong(image);
    viff_info.columns=ReadBlobLong(image);
    viff_info.subrows=ReadBlobLong(image);
    viff_info.x_offset=(int) ReadBlobLong(image);
    viff_info.y_offset=(int) ReadBlobLong(image);
    viff_info.x_bits_per_pixel=(float) ReadBlobLong(image);
    viff_info.y_bits_per_pixel=(float) ReadBlobLong(image);
    viff_info.location_type=ReadBlobLong(image);
    viff_info.location_dimension=ReadBlobLong(image);
    viff_info.number_of_images=ReadBlobLong(image);
    viff_info.number_data_bands=ReadBlobLong(image);
    viff_info.data_storage_type=ReadBlobLong(image);
    viff_info.data_encode_scheme=ReadBlobLong(image);
    viff_info.map_scheme=ReadBlobLong(image);
    viff_info.map_storage_type=ReadBlobLong(image);
    viff_info.map_rows=ReadBlobLong(image);
    viff_info.map_columns=ReadBlobLong(image);
    viff_info.map_subrows=ReadBlobLong(image);
    viff_info.map_enable=ReadBlobLong(image);
    viff_info.maps_per_cycle=ReadBlobLong(image);
    viff_info.color_space_model=ReadBlobLong(image);
    for (i=0; i < 420; i++)
      (void) ReadBlobByte(image);
    if (EOFBlob(image) != MagickFalse)
      ThrowReaderException(CorruptImageError,"UnexpectedEndOfFile");
    image->columns=viff_info.rows;
    image->rows=viff_info.columns;
    image->depth=viff_info.x_bits_per_pixel <= 8 ? 8UL :
      MAGICKCORE_QUANTUM_DEPTH;
    /*
      Verify that we can read this VIFF image.
    */
    number_pixels=(MagickSizeType) viff_info.columns*viff_info.rows;
    if (number_pixels != (size_t) number_pixels)
      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
    if (number_pixels == 0)
      ThrowReaderException(CoderError,"ImageColumnOrRowSizeIsNotSupported");
    if ((viff_info.number_data_bands < 1) || (viff_info.number_data_bands > 4))
      ThrowReaderException(CorruptImageError,"ImproperImageHeader");
    if ((viff_info.data_storage_type != VFF_TYP_BIT) &&
        (viff_info.data_storage_type != VFF_TYP_1_BYTE) &&
        (viff_info.data_storage_type != VFF_TYP_2_BYTE) &&
        (viff_info.data_storage_type != VFF_TYP_4_BYTE) &&
        (viff_info.data_storage_type != VFF_TYP_FLOAT) &&
        (viff_info.data_storage_type != VFF_TYP_DOUBLE))
      ThrowReaderException(CoderError,"DataStorageTypeIsNotSupported");
    if (viff_info.data_encode_scheme != VFF_DES_RAW)
      ThrowReaderException(CoderError,"DataEncodingSchemeIsNotSupported");
    if ((viff_info.map_storage_type != VFF_MAPTYP_NONE) &&
        (viff_info.map_storage_type != VFF_MAPTYP_1_BYTE) &&
        (viff_info.map_storage_type != VFF_MAPTYP_2_BYTE) &&
        (viff_info.map_storage_type != VFF_MAPTYP_4_BYTE) &&
        (viff_info.map_storage_type != VFF_MAPTYP_FLOAT) &&
        (viff_info.map_storage_type != VFF_MAPTYP_DOUBLE))
      ThrowReaderException(CoderError,"MapStorageTypeIsNotSupported");
    if ((viff_info.color_space_model != VFF_CM_NONE) &&
        (viff_info.color_space_model != VFF_CM_ntscRGB) &&
        (viff_info.color_space_model != VFF_CM_genericRGB))
      ThrowReaderException(CoderError,"ColorspaceModelIsNotSupported");
    if (viff_info.location_type != VFF_LOC_IMPLICIT)
      ThrowReaderException(CoderError,"LocationTypeIsNotSupported");
    if (viff_info.number_of_images != 1)
      ThrowReaderException(CoderError,"NumberOfImagesIsNotSupported");
    if (viff_info.map_rows == 0)
      viff_info.map_scheme=VFF_MS_NONE;
    switch ((int) viff_info.map_scheme)
    {
      case VFF_MS_NONE:
      {
        if (viff_info.number_data_bands < 3)
          {
            /*
              Create linear color ramp.
            */
            if (viff_info.data_storage_type == VFF_TYP_BIT)
              image->colors=2;
            else
              if (viff_info.data_storage_type == VFF_MAPTYP_1_BYTE)
                image->colors=256UL;
              else
                image->colors=image->depth <= 8 ? 256UL : 65536UL;
            if (AcquireImageColormap(image,image->colors) == MagickFalse)
              ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
          }
        break;
      }
      case VFF_MS_ONEPERBAND:
      case VFF_MS_SHARED:
      {
        unsigned char
          *viff_colormap;

        /*
          Allocate VIFF colormap.
        */
        switch ((int) viff_info.map_storage_type)
        {
          case VFF_MAPTYP_1_BYTE: bytes_per_pixel=1; break;
          case VFF_MAPTYP_2_BYTE: bytes_per_pixel=2; break;
          case VFF_MAPTYP_4_BYTE: bytes_per_pixel=4; break;
          case VFF_MAPTYP_FLOAT: bytes_per_pixel=4; break;
          case VFF_MAPTYP_DOUBLE: bytes_per_pixel=8; break;
          default: bytes_per_pixel=1; break;
        }
        image->colors=viff_info.map_columns;
        if (AcquireImageColormap(image,image->colors) == MagickFalse)
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        viff_colormap=(unsigned char *) AcquireQuantumMemory(image->colors,
          viff_info.map_rows*bytes_per_pixel*sizeof(*viff_colormap));
        if (viff_colormap == (unsigned char *) NULL)
          ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
        /*
          Read VIFF raster colormap.
        */
        (void) ReadBlob(image,bytes_per_pixel*image->colors*viff_info.map_rows,
          viff_colormap);
        lsb_first=1;
        if (*(char *) &lsb_first &&
            ((viff_info.machine_dependency != VFF_DEP_DECORDER) &&
             (viff_info.machine_dependency != VFF_DEP_NSORDER)))
          switch ((int) viff_info.map_storage_type)
          {
            case VFF_MAPTYP_2_BYTE:
            {
              MSBOrderShort(viff_colormap,(bytes_per_pixel*image->colors*
                viff_info.map_rows));
              break;
            }
            case VFF_MAPTYP_4_BYTE:
            case VFF_MAPTYP_FLOAT:
            {
              MSBOrderLong(viff_colormap,(bytes_per_pixel*image->colors*
                viff_info.map_rows));
              break;
            }
            default: break;
          }
        for (i=0; i < (ssize_t) (viff_info.map_rows*image->colors); i++)
        {
          switch ((int) viff_info.map_storage_type)
          {
            case VFF_MAPTYP_2_BYTE: value=1.0*((short *) viff_colormap)[i]; break;
            case VFF_MAPTYP_4_BYTE: value=1.0*((int *) viff_colormap)[i]; break;
            case VFF_MAPTYP_FLOAT: value=((float *) viff_colormap)[i]; break;
            case VFF_MAPTYP_DOUBLE: value=((double *) viff_colormap)[i]; break;
            default: value=1.0*viff_colormap[i]; break;
          }
          if (i < (ssize_t) image->colors)
            {
              image->colormap[i].red=ScaleCharToQuantum((unsigned char) value);
              image->colormap[i].green=ScaleCharToQuantum((unsigned char)
                value);
              image->colormap[i].blue=ScaleCharToQuantum((unsigned char) value);
            }
          else
            if (i < (ssize_t) (2*image->colors))
              image->colormap[i % image->colors].green=ScaleCharToQuantum(
                (unsigned char) value);
            else
              if (i < (ssize_t) (3*image->colors))
                image->colormap[i % image->colors].blue=ScaleCharToQuantum(
                  (unsigned char) value);
        }
        viff_colormap=(unsigned char *) RelinquishMagickMemory(viff_colormap);
        break;
      }
      default:
        ThrowReaderException(CoderError,"ColormapTypeNotSupported");
    }
    /*
      Initialize image structure.
    */
    image->matte=viff_info.number_data_bands == 4 ? MagickTrue : MagickFalse;
    image->storage_class=
      (viff_info.number_data_bands < 3 ? PseudoClass : DirectClass);
    image->columns=viff_info.rows;
    image->rows=viff_info.columns;
    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);
    if (status == MagickFalse)
      {
        InheritException(exception,&image->exception);
        return(DestroyImageList(image));
      }
    /*
      Allocate VIFF pixels.
    */
    switch ((int) viff_info.data_storage_type)
    {
      case VFF_TYP_2_BYTE: bytes_per_pixel=2; break;
      case VFF_TYP_4_BYTE: bytes_per_pixel=4; break;
      case VFF_TYP_FLOAT: bytes_per_pixel=4; break;
      case VFF_TYP_DOUBLE: bytes_per_pixel=8; break;
      default: bytes_per_pixel=1; break;
    }
    if (viff_info.data_storage_type == VFF_TYP_BIT)
      max_packets=((image->columns+7UL) >> 3UL)*image->rows;
    else
      max_packets=(size_t) (number_pixels*viff_info.number_data_bands);
    pixels=(unsigned char *) AcquireQuantumMemory(max_packets,
      bytes_per_pixel*sizeof(*pixels));
    if (pixels == (unsigned char *) NULL)
      ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
    (void) ReadBlob(image,bytes_per_pixel*max_packets,pixels);
    lsb_first=1;
    if (*(char *) &lsb_first &&
        ((viff_info.machine_dependency != VFF_DEP_DECORDER) &&
         (viff_info.machine_dependency != VFF_DEP_NSORDER)))
      switch ((int) viff_info.data_storage_type)
      {
        case VFF_TYP_2_BYTE:
        {
          MSBOrderShort(pixels,bytes_per_pixel*max_packets);
          break;
        }
        case VFF_TYP_4_BYTE:
        case VFF_TYP_FLOAT:
        {
          MSBOrderLong(pixels,bytes_per_pixel*max_packets);
          break;
        }
        default: break;
      }
    min_value=0.0;
    scale_factor=1.0;
    if ((viff_info.data_storage_type != VFF_TYP_1_BYTE) &&
        (viff_info.map_scheme == VFF_MS_NONE))
      {
        double
          max_value;

        /*
          Determine scale factor.
        */
        switch ((int) viff_info.data_storage_type)
        {
          case VFF_TYP_2_BYTE: value=1.0*((short *) pixels)[0]; break;
          case VFF_TYP_4_BYTE: value=1.0*((int *) pixels)[0]; break;
          case VFF_TYP_FLOAT: value=((float *) pixels)[0]; break;
          case VFF_TYP_DOUBLE: value=((double *) pixels)[0]; break;
          default: value=1.0*pixels[0]; break;
        }
        max_value=value;
        min_value=value;
        for (i=0; i < (ssize_t) max_packets; i++)
        {
          switch ((int) viff_info.data_storage_type)
          {
            case VFF_TYP_2_BYTE: value=1.0*((short *) pixels)[i]; break;
            case VFF_TYP_4_BYTE: value=1.0*((int *) pixels)[i]; break;
            case VFF_TYP_FLOAT: value=((float *) pixels)[i]; break;
            case VFF_TYP_DOUBLE: value=((double *) pixels)[i]; break;
            default: value=1.0*pixels[i]; break;
          }
          if (value > max_value)
            max_value=value;
          else
            if (value < min_value)
              min_value=value;
        }
        if ((min_value == 0) && (max_value == 0))
          scale_factor=0;
        else
          if (min_value == max_value)
            {
              scale_factor=(MagickRealType) QuantumRange/min_value;
              min_value=0;
            }
          else
            scale_factor=(MagickRealType) QuantumRange/(max_value-min_value);
      }
    /*
      Convert pixels to Quantum size.
    */
    p=(unsigned char *) pixels;
    for (i=0; i < (ssize_t) max_packets; i++)
    {
      switch ((int) viff_info.data_storage_type)
      {
        case VFF_TYP_2_BYTE: value=1.0*((short *) pixels)[i]; break;
        case VFF_TYP_4_BYTE: value=1.0*((int *) pixels)[i]; break;
        case VFF_TYP_FLOAT: value=((float *) pixels)[i]; break;
        case VFF_TYP_DOUBLE: value=((double *) pixels)[i]; break;
        default: value=1.0*pixels[i]; break;
      }
      if (viff_info.map_scheme == VFF_MS_NONE)
        {
          value=(value-min_value)*scale_factor;
          if (value > QuantumRange)
            value=QuantumRange;
          else
            if (value < 0)
              value=0;
        }
      *p=(unsigned char) ((Quantum) value);
      p++;
    }
    /*
      Convert VIFF raster image to pixel packets.
    */
    p=(unsigned char *) pixels;
    if (viff_info.data_storage_type == VFF_TYP_BIT)
      {
        /*
          Convert bitmap scanline.
        */
        if (image->storage_class != PseudoClass)
          ThrowReaderException(CorruptImageError,"ImproperImageHeader");
        for (y=0; y < (ssize_t) image->rows; y++)
        {
          q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
          if (q == (PixelPacket *) NULL)
            break;
          indexes=GetAuthenticIndexQueue(image);
          for (x=0; x < (ssize_t) (image->columns-7); x+=8)
          {
            for (bit=0; bit < 8; bit++)
            {
              quantum=(size_t) ((*p) & (0x01 << bit) ? 0 : 1);
              SetPixelRed(q,quantum == 0 ? 0 : QuantumRange);
              SetPixelGreen(q,quantum == 0 ? 0 : QuantumRange);
              SetPixelBlue(q,quantum == 0 ? 0 : QuantumRange);
              if (image->storage_class == PseudoClass)
                SetPixelIndex(indexes+x+bit,quantum);
             }
            p++;
          }
          if ((image->columns % 8) != 0)
            {
              for (bit=0; bit < (int) (image->columns % 8); bit++)
              {
                quantum=(size_t) ((*p) & (0x01 << bit) ? 0 : 1);
                SetPixelRed(q,quantum == 0 ? 0 : QuantumRange);
                SetPixelGreen(q,quantum == 0 ? 0 : QuantumRange);
                SetPixelBlue(q,quantum == 0 ? 0 : QuantumRange);
                if (image->storage_class == PseudoClass)
                  SetPixelIndex(indexes+x+bit,quantum);
              }
              p++;
            }
          if (SyncAuthenticPixels(image,exception) == MagickFalse)
            break;
          if (image->previous == (Image *) NULL)
            {
              status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
                image->rows);
              if (status == MagickFalse)
                break;
            }
        }
      }
    else
      if (image->storage_class == PseudoClass)
        for (y=0; y < (ssize_t) image->rows; y++)
        {
          q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
          if (q == (PixelPacket *) NULL)
            break;
          indexes=GetAuthenticIndexQueue(image);
          for (x=0; x < (ssize_t) image->columns; x++)
            SetPixelIndex(indexes+x,*p++);
          if (SyncAuthenticPixels(image,exception) == MagickFalse)
            break;
          if (image->previous == (Image *) NULL)
            {
              status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
                image->rows);
              if (status == MagickFalse)
                break;
            }
        }
      else
        {
          /*
            Convert DirectColor scanline.
          */
          number_pixels=(MagickSizeType) image->columns*image->rows;
          for (y=0; y < (ssize_t) image->rows; y++)
          {
            q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
            if (q == (PixelPacket *) NULL)
              break;
            for (x=0; x < (ssize_t) image->columns; x++)
            {
              SetPixelRed(q,ScaleCharToQuantum(*p));
              SetPixelGreen(q,ScaleCharToQuantum(*(p+number_pixels)));
              SetPixelBlue(q,ScaleCharToQuantum(*(p+2*number_pixels)));
              if (image->colors != 0)
                {
                  ssize_t
                    index;

                  index=(ssize_t) GetPixelRed(q);
                  SetPixelRed(q,image->colormap[(ssize_t)
                    ConstrainColormapIndex(image,index)].red);
                  index=(ssize_t) GetPixelGreen(q);
                  SetPixelGreen(q,image->colormap[(ssize_t)
                    ConstrainColormapIndex(image,index)].green);
                  index=(ssize_t) GetPixelRed(q);
                  SetPixelBlue(q,image->colormap[(ssize_t)
                    ConstrainColormapIndex(image,index)].blue);
                }
              SetPixelOpacity(q,image->matte != MagickFalse ? QuantumRange-
                ScaleCharToQuantum(*(p+number_pixels*3)) : OpaqueOpacity);
              p++;
              q++;
            }
            if (SyncAuthenticPixels(image,exception) == MagickFalse)
              break;
            if (image->previous == (Image *) NULL)
              {
                status=SetImageProgress(image,LoadImageTag,(MagickOffsetType) y,
                image->rows);
                if (status == MagickFalse)
                  break;
              }
          }
        }
    pixels=(unsigned char *) RelinquishMagickMemory(pixels);
    if (image->storage_class == PseudoClass)
      (void) SyncImage(image);
    if (EOFBlob(image) != MagickFalse)
      {
        ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
          image->filename);
        break;
      }
    /*
      Proceed to next image.
    */
    if (image_info->number_scenes != 0)
      if (image->scene >= (image_info->scene+image_info->number_scenes-1))
        break;
    count=ReadBlob(image,1,&viff_info.identifier);
    if ((count != 0) && (viff_info.identifier == 0xab))
      {
        /*
          Allocate next image structure.
        */
        AcquireNextImage(image_info,image);
        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;
      }
  } while ((count != 0) && (viff_info.identifier == 0xab));
Exemplo n.º 5
0
static Image *ReadVIPSImage(const ImageInfo *image_info,
  ExceptionInfo *exception)
{
  char
    buffer[MaxTextExtent],
    *metadata;

  Image
    *image;

  MagickBooleanType
    status;

  ssize_t
    n;

  unsigned int
    channels,
    marker;

  VIPSBandFormat
    format;

  VIPSCoding
    coding;

  VIPSType
    type;

  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);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == MagickFalse)
    {
      image=DestroyImageList(image);
      return((Image *) NULL);
    }
  marker=ReadBlobLSBLong(image);
  if (marker == VIPS_MAGIC_LSB)
    image->endian=LSBEndian;
  else if (marker == VIPS_MAGIC_MSB)
    image->endian=MSBEndian;
  else
    ThrowReaderException(CorruptImageError,"ImproperImageHeader");
  image->columns=(size_t) ReadBlobLong(image);
  image->rows=(size_t) ReadBlobLong(image);
  status=SetImageExtent(image,image->columns,image->rows);
  if (status == MagickFalse)
    {
      InheritException(exception,&image->exception);
      return(DestroyImageList(image));
    }
  channels=ReadBlobLong(image);
  (void) ReadBlobLong(image); /* Legacy */
  format=(VIPSBandFormat) ReadBlobLong(image);
  switch(format)
  {
    case VIPSBandFormatUCHAR:
    case VIPSBandFormatCHAR:
      image->depth=8;
      break;
    case VIPSBandFormatUSHORT:
    case VIPSBandFormatSHORT:
      image->depth=16;
      break;
    case VIPSBandFormatUINT:
    case VIPSBandFormatINT:
    case VIPSBandFormatFLOAT:
      image->depth=32;
      break;
    case VIPSBandFormatDOUBLE:
      image->depth=64;
      break;
    default:
    case VIPSBandFormatCOMPLEX:
    case VIPSBandFormatDPCOMPLEX:
    case VIPSBandFormatNOTSET:
      ThrowReaderException(CoderError,"Unsupported band format");
  }
  coding=(VIPSCoding) ReadBlobLong(image);
  type=(VIPSType) ReadBlobLong(image);
  switch(type)
  {
    case VIPSTypeCMYK:
      SetImageColorspace(image,CMYKColorspace);
      if (channels == 5)
        image->matte=MagickTrue;
      break;
    case VIPSTypeB_W:
    case VIPSTypeGREY16:
      SetImageColorspace(image,GRAYColorspace);
      if (channels == 2)
        image->matte=MagickTrue;
      break;
    case VIPSTypeRGB:
    case VIPSTypeRGB16:
      SetImageColorspace(image,RGBColorspace);
      if (channels == 4)
        image->matte=MagickTrue;
      break;
    case VIPSTypesRGB:
      SetImageColorspace(image,sRGBColorspace);
      if (channels == 4)
        image->matte=MagickTrue;
      break;
    default:
    case VIPSTypeFOURIER:
    case VIPSTypeHISTOGRAM:
    case VIPSTypeLAB:
    case VIPSTypeLABS:
    case VIPSTypeLABQ:
    case VIPSTypeLCH:
    case VIPSTypeMULTIBAND:
    case VIPSTypeUCS:
    case VIPSTypeXYZ:
    case VIPSTypeYXY:
      ThrowReaderException(CoderError,"Unsupported colorspace");
  }
  image->units=PixelsPerCentimeterResolution;
  image->x_resolution=ReadBlobFloat(image)*10;
  image->y_resolution=ReadBlobFloat(image)*10;
  /*
    Legacy, offsets, future
  */
  (void) ReadBlobLongLong(image);
  (void) ReadBlobLongLong(image);
  (void) ReadBlobLongLong(image);
  if (image_info->ping != MagickFalse)
    return(image);
  if (IsSupportedCombination(format,type) == MagickFalse)
    ThrowReaderException(CoderError,
      "Unsupported combination of band format and colorspace");
  if (channels == 0 || channels > 5)
    ThrowReaderException(CoderError,"Unsupported number of channels");
  if (coding == VIPSCodingNONE)
    status=ReadVIPSPixelsNONE(image,format,type,channels,exception);
  else
    ThrowReaderException(CoderError,"Unsupported coding");
  metadata=(char *) NULL;
  while ((n=ReadBlob(image,MaxTextExtent-1,(unsigned char *) buffer)) != 0)
  {
    buffer[n]='\0';
    if (metadata == (char *) NULL)
      metadata=ConstantString(buffer);
    else
      (void) ConcatenateString(&metadata,buffer);
  }
  if (metadata != (char *) NULL)
    SetImageProperty(image,"vips:metadata",metadata);
  (void) CloseBlob(image);
  if (status == MagickFalse)
    return((Image *) NULL);
  return(image);
}
Exemplo n.º 6
0
static Image *ReadIPLImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
  
  /* 
  Declare variables 
   */
  Image *image;

  MagickBooleanType status;
  register PixelPacket *q;
  unsigned char magick[12], *pixels;
  ssize_t count;
  ssize_t y;
  size_t t_count=0;
  size_t length;
  IPLInfo
    ipl_info;
  QuantumFormatType
    quantum_format;
  QuantumInfo
    *quantum_info;
  QuantumType
    quantum_type;

  /*
   Open 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);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == MagickFalse)
  {
    image=DestroyImageList(image);
    return((Image *) NULL);
  }
  
  /*
   Read IPL image
   */

  /* 
    Determine endianness 
   If we get back "iiii", we have LSB,"mmmm", MSB
   */
  count=ReadBlob(image,4,magick); 
  (void) count;
  if((LocaleNCompare((char *) magick,"iiii",4) == 0))  
    image->endian=LSBEndian;
  else{
    if((LocaleNCompare((char *) magick,"mmmm",4) == 0)) 
      image->endian=MSBEndian;
    else{
      ThrowReaderException(CorruptImageError, "ImproperImageHeader");
    }
  }
  /* Skip o'er the next 8 bytes (garbage) */
  count=ReadBlob(image, 8, magick); 
  /*
   Excellent, now we read the header unimpeded.
   */
  count=ReadBlob(image,4,magick); 
  if((LocaleNCompare((char *) magick,"data",4) != 0))  
    ThrowReaderException(CorruptImageError, "ImproperImageHeader");
  ipl_info.size=ReadBlobLong(image); 
  ipl_info.width=ReadBlobLong(image); 
  ipl_info.height=ReadBlobLong(image); 
  if((ipl_info.width == 0UL) || (ipl_info.height == 0UL))
    ThrowReaderException(CorruptImageError,"ImproperImageHeader");
  ipl_info.colors=ReadBlobLong(image); 
  if(ipl_info.colors == 3){ image->colorspace=RGBColorspace;}
  else { image->colorspace = GRAYColorspace; }
  ipl_info.z=ReadBlobLong(image); 
  ipl_info.time=ReadBlobLong(image); 

  ipl_info.byteType=ReadBlobLong(image); 


  /* Initialize Quantum Info */

  switch (ipl_info.byteType) {
    case 0: 
      ipl_info.depth=8;
      quantum_format = UnsignedQuantumFormat;
      break;
    case 1: 
      ipl_info.depth=16;
      quantum_format = SignedQuantumFormat;
      break;
    case 2: 
      ipl_info.depth=16;
      quantum_format = UnsignedQuantumFormat;
      break;
    case 3: 
      ipl_info.depth=32;
      quantum_format = SignedQuantumFormat;
      break;
    case 4: ipl_info.depth=32;
      quantum_format = FloatingPointQuantumFormat;
      break;
    case 5: 
      ipl_info.depth=8;
      quantum_format = UnsignedQuantumFormat;
      break;
    case 6: 
      ipl_info.depth=16;
      quantum_format = UnsignedQuantumFormat;
      break;
    case 10:  
      ipl_info.depth=64;
      quantum_format = FloatingPointQuantumFormat;
      break; 
    default: 
      ipl_info.depth=16;
      quantum_format = UnsignedQuantumFormat;
      break;
  }

  /*
    Set number of scenes of image
  */

  SetHeaderFromIPL(image, &ipl_info);

  /* Thats all we need if we are pinging. */
  if (image_info->ping != MagickFalse)
  {
    (void) CloseBlob(image);
    return(GetFirstImageInList(image));
  }
  length=image->columns;
  quantum_type=GetQuantumType(image,exception);
 do
  {
    SetHeaderFromIPL(image, &ipl_info);

  if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
      if (image->scene >= (image_info->scene+image_info->number_scenes-1))
        break;
/*
   printf("Length: %.20g, Memory size: %.20g\n", (double) length,(double)
     image->depth);
*/
     quantum_info=AcquireQuantumInfo(image_info,image);
     if (quantum_info == (QuantumInfo *) NULL)
       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
     status=SetQuantumFormat(image,quantum_info,quantum_format);
     if (status == MagickFalse)
       ThrowReaderException(ResourceLimitError,"MemoryAllocationFailed");
     pixels=GetQuantumPixels(quantum_info); 
     if(image->columns != ipl_info.width){
/*
     printf("Columns not set correctly!  Wanted: %.20g, got: %.20g\n",
       (double) ipl_info.width, (double) image->columns);
*/
     }

    /* 
    Covert IPL binary to pixel packets
     */
    
  if(ipl_info.colors == 1){
      for(y = 0; y < (ssize_t) image->rows; y++){
        (void) ReadBlob(image, length*image->depth/8, pixels);
        q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
        if (q == (PixelPacket *) NULL)
                break;
        (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
          GrayQuantum,pixels,exception);
        if (SyncAuthenticPixels(image,exception) == MagickFalse)
          break;
    }
  }
  else{
      for(y = 0; y < (ssize_t) image->rows; y++){
        (void) ReadBlob(image, length*image->depth/8, pixels);
        q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
        if (q == (PixelPacket *) NULL)
                break;
        (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
          RedQuantum,pixels,exception);  
        if (SyncAuthenticPixels(image,exception) == MagickFalse)
          break;
      }
      for(y = 0; y < (ssize_t) image->rows; y++){
        (void) ReadBlob(image, length*image->depth/8, pixels);
        q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
        if (q == (PixelPacket *) NULL)
          break;
        (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
          GreenQuantum,pixels,exception);
        if (SyncAuthenticPixels(image,exception) == MagickFalse)
          break;
      }
      for(y = 0; y < (ssize_t) image->rows; y++){
        (void) ReadBlob(image, length*image->depth/8, pixels);
        q=QueueAuthenticPixels(image,0,y,image->columns,1,exception);
        if (q == (PixelPacket *) NULL)
          break;
        (void) ImportQuantumPixels(image,(CacheView *) NULL,quantum_info,
          BlueQuantum,pixels,exception);
        if (SyncAuthenticPixels(image,exception) == MagickFalse)
          break;
      }
   }
   SetQuantumImageType(image,quantum_type);
 
    t_count++;
  quantum_info = DestroyQuantumInfo(quantum_info);

    if (EOFBlob(image) != MagickFalse)
    {
      ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
                 image->filename);
      break;
    }
   if(t_count < ipl_info.z * ipl_info.time){
      /*
       Proceed to next image.
       */
      AcquireNextImage(image_info, image);
      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;
    }
  } while (t_count < ipl_info.z*ipl_info.time);
  CloseBlob(image);
  return(GetFirstImageInList(image));
}
Exemplo n.º 7
0
static Image *ReadIPLImage(const ImageInfo *image_info,ExceptionInfo *exception)
{
  
  /* 
  Declare variables 
   */
  Image *image;
  MagickBooleanType status;
  long y,c;
  register PixelPacket *q;
  unsigned char magick[12], *pixels;
  char buff[80];
  ssize_t count;
  unsigned long t_count=0;
  size_t length;
  IPLInfo
    ipl_info;
  QuantumInfo
    *quantum_info;
  /*
   Open 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=AllocateImage(image_info);
  status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
  if (status == MagickFalse)
  {
    image=DestroyImageList(image);
    return((Image *) NULL);
  }
  
  /*
   Read IPL image
   */
  /*  Set default resolution */
  image->x_resolution=1;
  image->y_resolution=1;
  /* 
    Determine endianness 
   If we get back "iiii", we have LSB,"mmmm", MSB
   */
  count=ReadBlob(image,4,magick); 
  if((LocaleNCompare((char *) magick,"iiii",4) == 0))  
    image->endian=LSBEndian;
  else{
    if((LocaleNCompare((char *) magick,"mmmm",4) == 0)) 
      image->endian=MSBEndian;
    else{
      ThrowReaderException(CorruptImageError, "ImproperImageHeader");
    }
  }
  
  /* Skip o'er the next 8 bytes (garbage) */
  count=ReadBlob(image, 8, magick); 
  /*
   Excellent, now we read the header unimpeded.
   */
  count=ReadBlob(image,4,magick); 
  if((LocaleNCompare((char *) magick,"data",4) != 0))  
    ThrowReaderException(CorruptImageError, "ImproperImageHeader");
  ipl_info.size=ReadBlobLong(image); 
  ipl_info.width=ReadBlobLong(image); 
  ipl_info.height=ReadBlobLong(image); 
  if((ipl_info.width == ~0UL) || (ipl_info.height == ~0UL))
    ThrowReaderException(CorruptImageError, "ImproperImageHeader");
  ipl_info.colors=ReadBlobLong(image); 
  if(ipl_info.colors == 3){ image->colorspace=RGBColorspace;}
  else { image->colorspace = GRAYColorspace; }
  ipl_info.z=ReadBlobLong(image); 
  ipl_info.time=ReadBlobLong(image); 
  
  ipl_info.byteType=ReadBlobLong(image); 

  quantum_info = AcquireQuantumInfo(image_info);
  GetQuantumInfo(image_info, quantum_info);
  
  switch (ipl_info.byteType) {
    case 0: 
      ipl_info.depth=8;
      quantum_info->format=UnsignedQuantumFormat;
      quantum_info->minimum = 0;
      quantum_info->maximum = 255;
      quantum_info->scale=1.0;
      (void) SetImageProperty(image, "quantum:format", "UnsignedQuantumFormat");
      (void) SetImageProperty(image, "quantum:minimum", "0");
      (void) SetImageProperty(image, "quantum:maximum", "255");
      break;
    case 1: 
      ipl_info.depth=16;
      quantum_info->format=SignedQuantumFormat;
      quantum_info->minimum = -32767;
      quantum_info->maximum = 32767;
      (void) SetImageProperty(image, "quantum:format", "SignedQuantumFormat");
      (void) SetImageProperty(image, "quantum:minimum", "-32767");
      (void) SetImageProperty(image, "quantum:maximum", "32767");
      break;
    case 2: 
      ipl_info.depth=16;
      quantum_info->format=UnsignedQuantumFormat;
      quantum_info->minimum = 0;
      quantum_info->maximum = 65535;
      (void) SetImageProperty(image, "quantum:format", "UnsignedQuantumFormat");
      (void) SetImageProperty(image, "quantum:minimum", "0");
      (void) SetImageProperty(image, "quantum:maximum", "65535");
      break;
    case 3: 
      ipl_info.depth=32;
      quantum_info->format=SignedQuantumFormat;
      quantum_info->minimum = -2147483647;
      quantum_info->maximum = 2147483647;
      (void) SetImageProperty(image, "quantum:format", "SignedQuantumFormat");
      (void) SetImageProperty(image, "quantum:minimum", "-2147483647");
      (void) SetImageProperty(image, "quantum:maximum", "2147483647");
      break;
    case 4: ipl_info.depth=32;
      quantum_info->format=FloatingPointQuantumFormat;
      quantum_info->minimum = 0.0000000;
      quantum_info->maximum = 1.0000000;
      quantum_info->scale = QuantumRange;
      (void) SetImageProperty(image, "quantum:format", "FloatingPointQuantumFormat");
      (void) SetImageProperty(image, "quantum:minimum", "0.0000000");
      (void) SetImageProperty(image, "quantum:maximum", "1.0000000");
      break;
    case 5: 
      ipl_info.depth=8;
      (void) SetImageProperty(image, "quantum:format", "UnsignedQuantumFormat");
      break;
    case 6: 
      ipl_info.depth=16;
      (void) SetImageProperty(image, "quantum:format", "UnsignedQuantumFormat");
      break;
    case 10:  
      ipl_info.depth=64;
      quantum_info->format=FloatingPointQuantumFormat;
      quantum_info->minimum = 0.0000000;
      quantum_info->maximum = 1.0000000;
      quantum_info->scale = 1.000000/QuantumRange;
      (void) SetImageProperty(image, "quantum:format", "FloatingPointQuantumFormat");
      (void) SetImageProperty(image, "quantum:minimum", "0.0000000");
      (void) SetImageProperty(image, "quantum:maximum", "1.0000000");
      break; 
    default: 
      ipl_info.depth=16;
      quantum_info->format=UnsignedQuantumFormat;
      quantum_info->minimum = 0;
      quantum_info->maximum = 65535;
/*      (void) SetImageProperty(image, "quantum:format", "UnsignedQuantumFormat");*/
      break;
  }

  /*
    Set number of scenes of image
  */
  (void) FormatMagickString(buff, MaxTextExtent, "%lu", ipl_info.z * ipl_info.time );
  (void) SetImageProperty(image, "number_scenes", buff);
  
  /* Thats all we need if we are pinging. */
  if (image_info->ping != MagickFalse)
  {
    CloseBlob(image);
    return(GetFirstImageInList(image));
  }

  image->columns=ipl_info.width;
  image->rows=ipl_info.height;
  image->depth=ipl_info.depth; 

  if (SetImageExtent(image,0,0) == MagickFalse)
    {
      InheritException(exception,&image->exception);
      return(DestroyImageList(image));
    }
  length=image->columns;
  pixels=(unsigned char *) AcquireQuantumMemory(length,(image->depth/8)*
    sizeof(*pixels));
  if(pixels == (unsigned char *)NULL)
    ThrowReaderException(ResourceLimitError, "MemoryAllocationFailed");
  do
  {
    /* 
    Covert IPL binary to pixel packets
     */
    for (c=0; c < (long) ipl_info.colors; c++){
      for(y = 0; y < (long) image->rows; y++){
        (void) ReadBlob(image, length, pixels);
        q=SetImagePixels(image,0,y,image->columns,1);
        if (q == (PixelPacket *) NULL)
                break;
        if(ipl_info.colors == 1){
          (void) ExportQuantumPixels(image, quantum_info, GrayQuantum, pixels);
          if (SyncImagePixels(image) == MagickFalse)
                  break;
/*          for(x = 0; x < image->columns; x++){
            for( j= 0; j < 4; j++){          
              printf("%2x", (unsigned int)pixels[4*x + j]);
            }
            printf("\t");
          }
          printf("\n"); */
        }
        else{
          switch(c){
          case 0:  
            (void) ExportQuantumPixels(image, quantum_info, RedQuantum, pixels);
          case 1:  
            (void) ExportQuantumPixels(image, quantum_info, GreenQuantum, pixels);
          default:  
            (void) ExportQuantumPixels(image, quantum_info, BlueQuantum, pixels);
          }
          if (SyncImagePixels(image) == MagickFalse)
                  break;
        }
      }  
    }      
    t_count++;
    if (EOFBlob(image) != MagickFalse)
    {
      ThrowFileException(exception,CorruptImageError,"UnexpectedEndOfFile",
                 image->filename);
      break;
    }
    if(t_count < ipl_info.z * ipl_info.time){
      /*
       Proceed to next image.
       */

      AllocateNextImage(image_info, image);
      if (GetNextImageInList(image) == (Image *) NULL)
      {
        image=DestroyImageList(image);
        return((Image *) NULL);
      }
      image=SyncNextImageInList(image); 
      if (image->progress_monitor != (MagickProgressMonitor) NULL)
      {
        status=image->progress_monitor(LoadImagesTag,TellBlob(image),
        GetBlobSize(image),image->client_data);
        if (status == MagickFalse)
          break;
      }
    }
  } while (t_count < ipl_info.z*ipl_info.time);
  CloseBlob(image);
  pixels = (unsigned char *) RelinquishMagickMemory(pixels);
  return(GetFirstImageInList(image));
}