Пример #1
0
static MagickBooleanType WriteWBMPImage(const ImageInfo *image_info,
  Image *image,ExceptionInfo *exception)
{
  MagickBooleanType
    status;

  register const Quantum
    *p;

  register ssize_t
    x;

  ssize_t
    y;

  unsigned char
    bit,
    byte;

  /*
    Open output image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  assert(exception != (ExceptionInfo *) NULL);
  assert(exception->signature == MagickSignature);
  status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
  if (status == MagickFalse)
    return(status);
  (void) TransformImageColorspace(image,sRGBColorspace,exception);
  /*
    Convert image to a bi-level image.
  */
  (void) SetImageType(image,BilevelType,exception);
  (void) WriteBlobMSBShort(image,0);
  WBMPWriteInteger(image,image->columns);
  WBMPWriteInteger(image,image->rows);
  for (y=0; y < (ssize_t) image->rows; y++)
  {
    p=GetVirtualPixels(image,0,y,image->columns,1,exception);
    if (p == (const Quantum *) NULL)
      break;
    bit=0;
    byte=0;
    for (x=0; x < (ssize_t) image->columns; x++)
    {
      if (GetPixelLuma(image,p) >= (QuantumRange/2.0))
        byte|=0x1 << (7-bit);
      bit++;
      if (bit == 8)
        {
          (void) WriteBlobByte(image,byte);
          bit=0;
          byte=0;
        }
      p+=GetPixelChannels(image);
    }
    if (bit != 0)
      (void) WriteBlobByte(image,byte);
    status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
      image->rows);
    if (status == MagickFalse)
      break;
  }
  (void) CloseBlob(image);
  return(MagickTrue);
}
Пример #2
0
Файл: wbmp.c Проект: scuddalo/cq
static MagickBooleanType WriteWBMPImage(const ImageInfo *image_info,
  Image *image)
{
  long
    y;

  MagickBooleanType
    status;

  register const PixelPacket
    *p;

  register IndexPacket
    *indexes;

  register long
    x;

  unsigned char
    bit,
    byte;

  /*
    Open output image file.
  */
  assert(image_info != (const ImageInfo *) NULL);
  assert(image_info->signature == MagickSignature);
  assert(image != (Image *) NULL);
  assert(image->signature == MagickSignature);
  if (image->debug != MagickFalse)
    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
  status=OpenBlob(image_info,image,WriteBinaryBlobMode,&image->exception);
  if (status == MagickFalse)
    return(status);
  if (image_info->colorspace == UndefinedColorspace)
    (void) SetImageColorspace(image,RGBColorspace);
  /*
    Convert image to a bi-level image.
  */
  (void) SetImageType(image,BilevelType);
  (void) WriteBlobMSBShort(image,0);
  WBMPWriteInteger(image,image->columns);
  WBMPWriteInteger(image,image->rows);
  for (y=0; y < (long) image->rows; y++)
  {
    p=AcquireImagePixels(image,0,y,image->columns,1,&image->exception);
    if (p == (const PixelPacket *) NULL)
      break;
    indexes=GetIndexes(image);
    bit=0;
    byte=0;
    for (x=0; x < (long) image->columns; x++)
    {
      if (PixelIntensity(p) >= ((MagickRealType) QuantumRange/2.0))
        byte|=0x1 << (7-bit);
      bit++;
      if (bit == 8)
        {
          (void) WriteBlobByte(image,byte);
          bit=0;
          byte=0;
        }
      p++;
    }
    if (bit != 0)
      (void) WriteBlobByte(image,byte);
    if ((image->progress_monitor != (MagickProgressMonitor) NULL) &&
        (QuantumTick(y,image->rows) != MagickFalse))
      {
        status=image->progress_monitor(SaveImageTag,y,image->rows,
          image->client_data);
        if (status == MagickFalse)
          break;
      }
  }
  CloseBlob(image);
  return(MagickTrue);
}