Esempio n. 1
0
int imFileFormatRAS::ReadImageData(void* data)
{
  imCounterTotal(this->counter, this->height, "Reading RAS...");

  for (int row = 0; row < this->height; row++)
  {
    /* read and decompress the data */
    if (this->comp_type != RAS_BYTE_ENCODED)
    {
      imBinFileRead(handle, this->line_buffer, this->line_raw_size, 1);

      if (imBinFileError(handle))
        return IM_ERR_ACCESS;     
    }
    else
    {                                               
      if (iRASDecodeScanLine(handle, (imbyte*)this->line_buffer, this->line_raw_size) == IM_ERR_ACCESS)
        return IM_ERR_ACCESS;     
    }

    if (this->bpp > 8)
      FixRGB();

    imFileLineBufferRead(this, data, row, 0);

    if (!imCounterInc(this->counter))
      return IM_ERR_COUNTER;
  }

  return IM_ERR_NONE;
}
Esempio n. 2
0
int imFileFormatJPEG::ReadImageData(void* data)
{
  if (setjmp(this->jerr.setjmp_buffer)) 
    return IM_ERR_ACCESS;

  imCounterTotal(this->counter, this->dinfo.output_height, "Reading JPEG...");

  int row = 0, plane = 0;
  while (this->dinfo.output_scanline < this->dinfo.output_height) 
  {
    if (jpeg_read_scanlines(&this->dinfo, (JSAMPARRAY)&this->line_buffer, 1) == 0)
      return IM_ERR_ACCESS;

    if (this->fix_adobe_cmyk)
      iFixAdobeCMYK((unsigned char*)this->line_buffer, this->width);

    imFileLineBufferRead(this, data, row, plane);

    if (!imCounterInc(this->counter))
    {
      jpeg_finish_decompress(&this->dinfo);
      return IM_ERR_COUNTER;
    }

    imFileLineBufferInc(this, &row, &plane);
  }

  jpeg_finish_decompress(&this->dinfo);

  return IM_ERR_NONE;
}
Esempio n. 3
0
int imFileFormatSGI::ReadImageData(void* data)
{
  int count = imFileLineBufferCount(this);

  imCounterTotal(this->counter, count, "Reading SGI...");

  imbyte* compressed_buffer = NULL;
  if (this->comp_type == SGI_RLE)  // point to the extra buffer
    compressed_buffer = (imbyte*)this->line_buffer + this->line_buffer_size;

  int row = 0, plane = 0;
  for (int i = 0; i < count; i++)
  {
    if (this->comp_type == SGI_VERBATIM)
    {
      imBinFileRead(handle, this->line_buffer, this->line_buffer_size/this->bpc, this->bpc);

      if (imBinFileError(handle))
        return IM_ERR_ACCESS;     
    }
    else
    {
      int row_index = row + plane*this->height;
      imBinFileSeekTo(handle, this->starttab[row_index]);
      imBinFileRead(handle, compressed_buffer, this->lengthtab[row_index] / this->bpc, this->bpc);

      if (imBinFileError(handle))
        return IM_ERR_ACCESS;     

      if (this->bpc == 1)
        iSGIDecodeScanLine((imbyte*)this->line_buffer, compressed_buffer, this->width);
      else
        iSGIDecodeScanLine((imushort*)this->line_buffer, (imushort*)compressed_buffer, this->width);
    }

    imFileLineBufferRead(this, data, row, plane);

    if (!imCounterInc(this->counter))
      return IM_ERR_COUNTER;

    imFileLineBufferInc(this, &row, &plane);
  }

  return IM_ERR_NONE;
}
Esempio n. 4
0
int imFileFormatJP2::ReadImageData(void* data)
{
  int count = imFileLineBufferCount(this);

  imCounterTotal(this->counter, count, NULL);

  int alpha_plane = -1;
  if (imColorModeHasAlpha(this->user_color_mode) && imColorModeHasAlpha(this->file_color_mode))
    alpha_plane = imColorModeDepth(this->file_color_mode) - 1;

  int row = 0, plane = 0;
  for (int i = 0; i < count; i++)
  {
    int cmpno;
    if (plane == alpha_plane)
      cmpno = jas_image_getcmptbytype(image, JAS_IMAGE_CT_OPACITY);
    else
      cmpno = jas_image_getcmptbytype(image, JAS_IMAGE_CT_COLOR(plane));

    if (cmpno == -1)
      return IM_ERR_DATA;

    int ret = 1;
    if (this->file_data_type == IM_BYTE)
      ret = iJP2ReadLine(image, row, cmpno, (imbyte*)this->line_buffer);
    else
      ret = iJP2ReadLine(image, row, cmpno, (imushort*)this->line_buffer);

    if (!ret)
      return IM_ERR_ACCESS;

    imFileLineBufferRead(this, data, row, plane);

    if (!imCounterInc(this->counter))
      return IM_ERR_COUNTER;

    imFileLineBufferInc(this, &row, &plane);
  }

  return IM_ERR_NONE;
}
Esempio n. 5
0
int imFileFormatPFM::ReadImageData(void* data)
{
  imCounterTotal(this->counter, this->height, "Reading PFM...");

  int line_raw_size = imImageLineSize(this->width, this->file_color_mode, this->file_data_type);

  for (int row = 0; row < this->height; row++)
  {
    imBinFileRead(handle, this->line_buffer, line_raw_size, 1);

    if (imBinFileError(handle))
      return IM_ERR_ACCESS;     

    imFileLineBufferRead(this, data, row, 0);

    if (!imCounterInc(this->counter))
      return IM_ERR_COUNTER;
  }

  return IM_ERR_NONE;
}
Esempio n. 6
0
int imFileFormatLED::ReadImageData(void* data)
{
  int value;

  imCounterTotal(this->counter, this->height, "Reading LED...");

  for (int row = 0; row < this->height; row++)
  {
    for (int col = 0; col < this->width; col++)
    {
      if (!imBinFileReadInteger(handle, &value))
        return IM_ERR_ACCESS;

      ((imbyte*)this->line_buffer)[col] = (unsigned char)value;
    }

    imFileLineBufferRead(this, data, row, 0);

    if (!imCounterInc(this->counter))
      return IM_ERR_COUNTER;
  } 

  return IM_ERR_NONE;
}
Esempio n. 7
0
int imFileFormatRAW::ReadImageData(void* data)
{
  int count = imFileLineBufferCount(this);
  int line_count = imImageLineCount(this->width, this->file_color_mode);
  int type_size = iFileDataTypeSize(this->file_data_type, this->switch_type);

  // treat complex as 2 real
  if (this->file_data_type == IM_CFLOAT) 
  {
    type_size /= 2;
    line_count *= 2;
  }

  int ascii;
  if (imStrEqual(this->compression, "ASCII"))
    ascii = 1;
  else
    ascii = 0;

  imCounterTotal(this->counter, count, "Reading RAW...");

  int row = 0, plane = 0;
  for (int i = 0; i < count; i++)
  {
    if (ascii)
    {
      for (int col = 0; col < line_count; col++)
      {
        if (this->file_data_type == IM_FLOAT)
        {
          float value;
          if (!imBinFileReadFloat(handle, &value))
            return IM_ERR_ACCESS;

          ((float*)this->line_buffer)[col] = value;
        }
        else
        {
          int value;
          if (!imBinFileReadInteger(handle, &value))
            return IM_ERR_ACCESS;

          if (this->file_data_type == IM_INT)
            ((int*)this->line_buffer)[col] = value;
          else if (this->file_data_type == IM_SHORT)
            ((short*)this->line_buffer)[col] = (short)value;
          else if (this->file_data_type == IM_USHORT)
            ((imushort*)this->line_buffer)[col] = (imushort)value;
          else
            ((imbyte*)this->line_buffer)[col] = (unsigned char)value;
        }
      }
    }
    else
    {
      imBinFileRead(this->handle, (imbyte*)this->line_buffer, line_count, type_size);

      if (imBinFileError(this->handle))
        return IM_ERR_ACCESS;
    }

    imFileLineBufferRead(this, data, row, plane);

    if (!imCounterInc(this->counter))
      return IM_ERR_COUNTER;

    imFileLineBufferInc(this, &row, &plane);

    if (this->padding)
      imBinFileSeekOffset(this->handle, this->padding);
  }

  return IM_ERR_NONE;
}
Esempio n. 8
0
int imFileFormatECW::ReadImageData(void* data)
{
  imAttribTable* attrib_table = AttribTable();
  int i, *attrib_data, view_width, view_height,
    nBands = imColorModeDepth(this->file_color_mode);

  // this size is free, can be anything, but we restricted to less than the image size
  attrib_data = (int*)attrib_table->Get("ViewWidth");
  view_width = attrib_data? *attrib_data: this->width; 
  if (view_width > this->width) view_width = this->width;

  attrib_data = (int*)attrib_table->Get("ViewHeight");
  view_height = attrib_data? *attrib_data: this->height; 
  if (view_height > this->height) view_height = this->height;

  imCounterTotal(this->counter, view_height, "Reading ECW...");

  {
    int xmin, xmax, ymin, ymax, band_start;

    // full image if not defined.
    // this size must be inside the image
    attrib_data = (int*)attrib_table->Get("ViewXmin");
    xmin = attrib_data? *attrib_data: 0; 
    if (xmin < 0) xmin = 0;

    attrib_data = (int*)attrib_table->Get("ViewYmin");
    ymin = attrib_data? *attrib_data: 0; 
    if (ymin < 0) ymin = 0;

    attrib_data = (int*)attrib_table->Get("ViewXmax");
    xmax = attrib_data? *attrib_data: this->width-1; 
    if (xmax > this->width-1) xmax = this->width-1;

    attrib_data = (int*)attrib_table->Get("ViewYmax");
    ymax = attrib_data? *attrib_data: this->height-1; 
    if (ymax > this->height-1) ymax = this->height-1;
  
    band_start = 0;
    UINT16* start_plane = (UINT16*)attrib_table->Get("MultiBandSelect");
    if (start_plane)
      band_start = *start_plane;

    UINT32 *pBandList = (UINT32*)malloc(sizeof(UINT32)*nBands);
    for(i = 0; i < nBands; i++)
      pBandList[i] = i+band_start;

    NCSError eError = NCScbmSetFileView(this->pNCSFileView, nBands, pBandList,
                                        xmin, ymin, xmax, ymax,
                                        view_width, view_height);
    free(pBandList);

    if( eError != NCS_SUCCESS) 
      return IM_ERR_DATA;
  }

  // this is necessary to fool line buffer management
  this->width = view_width;
  this->height = view_height;
  this->line_buffer_size = imImageLineSize(this->width, this->file_color_mode, this->file_data_type);

  NCSEcwCellType eType = NCSCT_UINT8;
  int type_size = 1;
  if (this->file_data_type == IM_SHORT)
  {
    eType = NCSCT_INT16;
    type_size = 2;
  }
  else if (this->file_data_type == IM_USHORT)
  {
    eType = NCSCT_UINT16;
    type_size = 2;
  }
  else if (this->file_data_type == IM_FLOAT)
  {
    eType = NCSCT_IEEE4;
    type_size = 4;
  }
  UINT8 **ppOutputLine = (UINT8**)malloc(sizeof(UINT8*)*nBands);
  UINT8 *ppOutputBuffer = (UINT8*)malloc(type_size*view_width*nBands);
  for(i = 0; i < nBands; i++)
    ppOutputLine[i] = ppOutputBuffer + i*type_size*view_width;

  for (int row = 0; row < view_height; row++)
  {
    NCSEcwReadStatus eError = NCScbmReadViewLineBILEx(this->pNCSFileView, eType, (void**)ppOutputLine);
    if( eError != NCS_SUCCESS)
    {
      free(ppOutputLine);
      free(ppOutputBuffer);
      return IM_ERR_DATA;
    }

    iCopyDataBuffer(ppOutputLine, (imbyte*)this->line_buffer, nBands, view_width, type_size);

    imFileLineBufferRead(this, data, row, 0);

    if (!imCounterInc(this->counter))
    {
      free(ppOutputLine);
      free(ppOutputBuffer);
      return IM_ERR_COUNTER;
    }
  }

  free(ppOutputLine);
  free(ppOutputBuffer);
  return IM_ERR_NONE;
}