/*!
Loads the TGA file to memory (acces data using ITextureFile base class members).
*/
bool TgaFile::load(const std::string& filename)
{
// Loads up a targa file. Supported types are 8,24 and 32
// uncompressed images.
unsigned char type[4];
unsigned char info[7];
int size = 0;
FILE *fp = fopen( filename.c_str(), "rb" );
if( !fp )
return false;
fread( &type, sizeof (char), 3, fp ); // Read in colormap info and image type, byte 0 ignored
fseek( fp, 12, SEEK_SET); // Seek past the header and useless info
fread( &info, sizeof (char), 6, fp );
if( type[1] != 0 || (type[2] != 2 && type[2] != 3) )
{
fclose (fp);
return false;
}
m_Width = info[0] + info[1] * 256;
m_Height = info[2] + info[3] * 256;
m_nBits = info[4];
size = m_Width * m_Height;
// Make sure dimension is a power of 2
if( !checkSize(m_Width) || !checkSize(m_Height))
{
fclose(fp);
return false;
}
// Make sure we are loading a supported type
if( m_nBits != 32 && m_nBits != 24 && m_nBits != 8 )
{
fclose(fp);
return false;
}
if( m_nBits == 32 )
m_pData = loadRGBA( fp, size );
else if( m_nBits == 24 )
m_pData = loadRGB( fp, size );
else if( m_nBits == 8 )
m_pData = loadGray( fp, size );
// No image data
if( m_pData == NULL )
{
fclose(fp);
return false;
}
fclose( fp );
return true;
}
bool Loader::load()
{
QString fn = m_fileName.path();
if ( fn.endsWith( ".nii.gz" ) || fn.endsWith( ".nii" ) || fn.endsWith( ".hdr" ) || fn.endsWith( ".ima" ) || fn.endsWith( ".img" ) )
{
return loadNifti();
}
if ( m_fileName.path().endsWith( ".fib" ) )
{
return loadVTK();
}
if ( m_fileName.path().endsWith( ".tck" ) )
{
return loadMRtrix();
}
if ( m_fileName.path().endsWith( ".vtk" ) )
{
return loadVTK();
}
if ( m_fileName.path().endsWith( ".json" ) )
{
return loadJSON();
}
if ( m_fileName.path().endsWith( ".asc" ) )
{
//TODO: Deal with offsets: Check if orig is always the same size?
return loadASC( QVector3D( 128, 128, 128 ) );
}
if ( m_fileName.path().endsWith( ".set" ) )
{
return loadSet();
}
if ( m_fileName.path().endsWith( ".glyphset" ) )
{
return loadGlyphset();
}
if ( m_fileName.path().endsWith( ".cons" ) || m_fileName.path().endsWith( ".cxls" ) )
{
return loadCons();
}
if ( m_fileName.path().endsWith( ".meg" ) )
{
return loadMEG();
}
if ( m_fileName.path().endsWith( ".htree" ) )
{
return loadTree();
}
if ( m_fileName.path().endsWith( ".rgb" ) )
{
return loadRGB();
}
if ( m_fileName.path().endsWith( ".1D" ) )
{
return load1D();
}
if ( m_fileName.path().endsWith( ".png" ) || m_fileName.path().endsWith( ".jpg" ) )
{
return loadPNG();
}
return false;
}
