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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}
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;
}