/*M///////////////////////////////////////////////////////////////////////////////////////
//
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//
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// If you do not agree to this license, do not download, install,
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//
// Copyright (C) 2000, Intel Corporation, all rights reserved.
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//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
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// * Redistribution's of source code must retain the above copyright notice,
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//M*/
/****************************************************************************************\
A part of the file implements TIFF reader on base of libtiff library
(see otherlibs/_graphics/readme.txt for copyright notice)
\****************************************************************************************/
#include "_highgui.h"
#include "grfmt_tiff.h"
static const char fmtSignTiffII[] = "II\x2a\x00";
static const char fmtSignTiffMM[] = "MM\x00\x2a";
GrFmtTiff::GrFmtTiff()
{
m_sign_len = 4;
m_signature = "";
m_description = "TIFF Files (*.tiff;*.tif)";
}
GrFmtTiff::~GrFmtTiff()
{
}
bool GrFmtTiff::CheckSignature( const char* signature )
{
return memcmp( signature, fmtSignTiffII, 4 ) == 0 ||
memcmp( signature, fmtSignTiffMM, 4 ) == 0;
}
GrFmtReader* GrFmtTiff::NewReader( const char* filename )
{
return new GrFmtTiffReader( filename );
}
GrFmtWriter* GrFmtTiff::NewWriter( const char* filename )
{
return new GrFmtTiffWriter( filename );
}
#ifdef HAVE_TIFF
#include "tiff.h"
#include "tiffio.h"
static int grfmt_tiff_err_handler_init = 0;
static void GrFmtSilentTIFFErrorHandler( const char*, const char*, va_list ) {}
GrFmtTiffReader::GrFmtTiffReader( const char* filename ) : GrFmtReader( filename )
{
m_tif = 0;
if( !grfmt_tiff_err_handler_init )
{
grfmt_tiff_err_handler_init = 1;
TIFFSetErrorHandler( GrFmtSilentTIFFErrorHandler );
TIFFSetWarningHandler( GrFmtSilentTIFFErrorHandler );
}
}
GrFmtTiffReader::~GrFmtTiffReader()
{
}
void GrFmtTiffReader::Close()
{
if( m_tif )
{
TIFF* tif = (TIFF*)m_tif;
TIFFClose( tif );
m_tif = 0;
}
}
bool GrFmtTiffReader::CheckFormat( const char* signature )
{
return memcmp( signature, fmtSignTiffII, 4 ) == 0 ||
memcmp( signature, fmtSignTiffMM, 4 ) == 0;
}
bool GrFmtTiffReader::ReadHeader()
{
char errmsg[1024];
bool result = false;
Close();
TIFF* tif = TIFFOpen( m_filename, "r" );
if( tif )
{
int width = 0, height = 0, photometric = 0, compression = 0;
m_tif = tif;
if( TIFFRGBAImageOK( tif, errmsg ) &&
TIFFGetField( tif, TIFFTAG_IMAGEWIDTH, &width ) &&
TIFFGetField( tif, TIFFTAG_IMAGELENGTH, &height ) &&
TIFFGetField( tif, TIFFTAG_PHOTOMETRIC, &photometric ) &&
(!TIFFGetField( tif, TIFFTAG_COMPRESSION, &compression ) ||
(compression != COMPRESSION_LZW &&
compression != COMPRESSION_OJPEG)))
{
m_width = width;
m_height = height;
m_iscolor = photometric > 1;
result = true;
}
}
if( !result )
Close();
return result;
}
bool GrFmtTiffReader::ReadData( uchar* data, int step, int color )
{
bool result = false;
uchar* buffer = 0;
color = color > 0 || (color < 0 && m_iscolor);
if( m_tif && m_width && m_height )
{
TIFF* tif = (TIFF*)m_tif;
int tile_width0 = m_width, tile_height0 = 0;
int x, y, i;
int is_tiled = TIFFIsTiled(tif);
if( !is_tiled &&
TIFFGetField( tif, TIFFTAG_ROWSPERSTRIP, &tile_height0 ) ||
is_tiled &&
TIFFGetField( tif, TIFFTAG_TILEWIDTH, &tile_width0 ) &&
TIFFGetField( tif, TIFFTAG_TILELENGTH, &tile_height0 ))
{
if( tile_width0 <= 0 )
tile_width0 = m_width;
if( tile_height0 <= 0 )
tile_height0 = m_height;
buffer = new uchar[tile_height0*tile_width0*4];
for( y = 0; y < m_height; y += tile_height0, data += step*tile_height0 )
{
int tile_height = tile_height0;
if( y + tile_height > m_height )
tile_height = m_height - y;
for( x = 0; x < m_width; x += tile_width0 )
{
int tile_width = tile_width0, ok;
if( x + tile_width > m_width )
tile_width = m_width - x;
if( !is_tiled )
ok = TIFFReadRGBAStrip( tif, y, (uint32*)buffer );
else
ok = TIFFReadRGBATile( tif, x, y, (uint32*)buffer );
if( !ok )
goto exit_func;
for( i = 0; i < tile_height; i++ )
if( color )
icvCvt_BGRA2BGR_8u_C4C3R( buffer + i*tile_width*4, 0,
data + x*3 + step*(tile_height - i - 1), 0,
cvSize(tile_width,1), 2 );
else
icvCvt_BGRA2Gray_8u_C4C1R( buffer + i*tile_width*4, 0,
data + x + step*(tile_height - i - 1), 0,
cvSize(tile_width,1), 2 );
}
}
result = true;
}
}
exit_func:
Close();
delete[] buffer;
return result;
}
#else
static const int tiffMask[] = { 0xff, 0xff, 0xffffffff, 0xffff, 0xffffffff };
/************************ TIFF reader *****************************/
GrFmtTiffReader::GrFmtTiffReader( const char* filename ) : GrFmtReader( filename )
{
m_offsets = 0;
m_maxoffsets = 0;
m_strips = -1;
m_max_pal_length = 0;
m_temp_palette = 0;
}
GrFmtTiffReader::~GrFmtTiffReader()
{
Close();
delete[] m_offsets;
delete[] m_temp_palette;
}
void GrFmtTiffReader::Close()
{
m_strm.Close();
}
bool GrFmtTiffReader::CheckFormat( const char* signature )
{
return memcmp( signature, fmtSignTiffII, 4 ) == 0 ||
memcmp( signature, fmtSignTiffMM, 4 ) == 0;
}
int GrFmtTiffReader::GetWordEx()
{
int val = m_strm.GetWord();
if( m_byteorder == TIFF_ORDER_MM )
val = ((val)>>8)|(((val)&0xff)<<8);
return val;
}
int GrFmtTiffReader::GetDWordEx()
{
int val = m_strm.GetDWord();
if( m_byteorder == TIFF_ORDER_MM )
val = BSWAP( val );
return val;
}
int GrFmtTiffReader::ReadTable( int offset, int count,
TiffFieldType fieldType,
int*& array, int& arraysize )
{
int i;
if( count < 0 )
return RBS_BAD_HEADER;
if( fieldType != TIFF_TYPE_SHORT &&
fieldType != TIFF_TYPE_LONG &&
fieldType != TIFF_TYPE_BYTE )
return RBS_BAD_HEADER;
if( count > arraysize )
{
delete[] array;
arraysize = arraysize*3/2;
if( arraysize < count )
arraysize = count;
array = new int[arraysize];
}
if( count > 1 )
{
int pos = m_strm.GetPos();
m_strm.SetPos( offset );
if( fieldType == TIFF_TYPE_LONG )
{
if( m_byteorder == TIFF_ORDER_MM )
for( i = 0; i < count; i++ )
array[i] = ((RMByteStream&)m_strm).GetDWord();
else
for( i = 0; i < count; i++ )
array[i] = ((RLByteStream&)m_strm).GetDWord();
}
else if( fieldType == TIFF_TYPE_SHORT )
{
if( m_byteorder == TIFF_ORDER_MM )
for( i = 0; i < count; i++ )
array[i] = ((RMByteStream&)m_strm).GetWord();
else
for( i = 0; i < count; i++ )
array[i] = ((RLByteStream&)m_strm).GetWord();
}
else // fieldType == TIFF_TYPE_BYTE
for( i = 0; i < count; i++ )
array[i] = m_strm.GetByte();
m_strm.SetPos(pos);
}
else
{
assert( (offset & ~tiffMask[fieldType]) == 0 );
array[0] = offset;
}
return 0;
}
bool GrFmtTiffReader::ReadHeader()
{
bool result = false;
int photometric = -1;
int channels = 1;
int pal_length = -1;
const int MAX_CHANNELS = 4;
int bpp_arr[MAX_CHANNELS];
assert( strlen(m_filename) != 0 );
if( !m_strm.Open( m_filename )) return false;
m_width = -1;
m_height = -1;
m_strips = -1;
m_bpp = 1;
m_compression = TIFF_UNCOMP;
m_rows_per_strip = -1;
m_iscolor = false;
if( setjmp( m_strm.JmpBuf()) == 0 )
{
m_byteorder = (TiffByteOrder)m_strm.GetWord();
m_strm.Skip( 2 );
int header_offset = GetDWordEx();
m_strm.SetPos( header_offset );
// read the first tag directory
int i, j, count = GetWordEx();
for( i = 0; i < count; i++ )
{
// read tag
TiffTag tag = (TiffTag)GetWordEx();
TiffFieldType fieldType = (TiffFieldType)GetWordEx();
int count = GetDWordEx();
int value = GetDWordEx();
if( count == 1 )
{
if( m_byteorder == TIFF_ORDER_MM )
{
if( fieldType == TIFF_TYPE_SHORT )
value = (unsigned)value >> 16;
else if( fieldType == TIFF_TYPE_BYTE )
value = (unsigned)value >> 24;
}
value &= tiffMask[fieldType];
}
switch( tag )
{
case TIFF_TAG_WIDTH:
m_width = value;
break;
case TIFF_TAG_HEIGHT:
m_height = value;
break;
case TIFF_TAG_BITS_PER_SAMPLE:
{
int* bpp_arr_ref = bpp_arr;
if( count > MAX_CHANNELS )
BAD_HEADER_ERR();
if( ReadTable( value, count, fieldType, bpp_arr_ref, count ) < 0 )
BAD_HEADER_ERR();
for( j = 1; j < count; j++ )
{
if( bpp_arr[j] != bpp_arr[0] )
BAD_HEADER_ERR();
}
m_bpp = bpp_arr[0];
}
break;
case TIFF_TAG_COMPRESSION:
m_compression = (TiffCompression)value;
if( m_compression != TIFF_UNCOMP &&
m_compression != TIFF_HUFFMAN &&
m_compression != TIFF_PACKBITS )
BAD_HEADER_ERR();
break;
case TIFF_TAG_PHOTOMETRIC:
photometric = value;
if( (unsigned)photometric > 3 )
BAD_HEADER_ERR();
break;
case TIFF_TAG_STRIP_OFFSETS:
m_strips = count;
if( ReadTable( value, count, fieldType, m_offsets, m_maxoffsets ) < 0 )
BAD_HEADER_ERR();
break;
case TIFF_TAG_SAMPLES_PER_PIXEL:
channels = value;
if( channels != 1 && channels != 3 && channels != 4 )
BAD_HEADER_ERR();
break;
case TIFF_TAG_ROWS_PER_STRIP:
m_rows_per_strip = value;
break;
case TIFF_TAG_PLANAR_CONFIG:
{
int planar_config = value;
if( planar_config != 1 )
BAD_HEADER_ERR();
}
break;
case TIFF_TAG_COLOR_MAP:
if( fieldType != TIFF_TYPE_SHORT || count < 2 )
BAD_HEADER_ERR();
if( ReadTable( value, count, fieldType,
m_temp_palette, m_max_pal_length ) < 0 )
BAD_HEADER_ERR();
pal_length = count / 3;
if( pal_length > 256 )
BAD_HEADER_ERR();
for( i = 0; i < pal_length; i++ )
{
m_palette[i].r = (uchar)(m_temp_palette[i] >> 8);
m_palette[i].g = (uchar)(m_temp_palette[i + pal_length] >> 8);
m_palette[i].b = (uchar)(m_temp_palette[i + pal_length*2] >> 8);
}
break;
case TIFF_TAG_STRIP_COUNTS:
break;
}
}
if( m_strips == 1 && m_rows_per_strip == -1 )
m_rows_per_strip = m_height;
if( m_width > 0 && m_height > 0 && m_strips > 0 &&
(m_height + m_rows_per_strip - 1)/m_rows_per_strip == m_strips )
{
switch( m_bpp )
{
case 1:
if( photometric == 0 || photometric == 1 && channels == 1 )
{
FillGrayPalette( m_palette, m_bpp, photometric == 0 );
result = true;
m_iscolor = false;
}
break;
case 4:
case 8:
if( (photometric == 0 || photometric == 1 ||
photometric == 3 && pal_length == (1 << m_bpp)) &&
m_compression != TIFF_HUFFMAN && channels == 1 )
{
if( pal_length < 0 )
{
FillGrayPalette( m_palette, m_bpp, photometric == 0 );
m_iscolor = false;
}
else
{
m_iscolor = IsColorPalette( m_palette, m_bpp );
}
result = true;
}
else if( photometric == 2 && pal_length < 0 &&
(channels == 3 || channels == 4) &&
m_compression == TIFF_UNCOMP )
{
m_bpp = 8*channels;
m_iscolor = true;
result = true;
}
break;
default:
BAD_HEADER_ERR();
}
}
bad_header_exit:
;
}
if( !result )
{
m_strips = -1;
m_width = m_height = -1;
m_strm.Close();
}
return result;
}
bool GrFmtTiffReader::ReadData( uchar* data, int step, int color )
{
const int buffer_size = 1 << 12;
uchar buffer[buffer_size];
uchar gray_palette[256];
bool result = false;
uchar* src = buffer;
int src_pitch = (m_width*m_bpp + 7)/8;
int y = 0;
if( m_strips < 0 || !m_strm.IsOpened())
return false;
if( src_pitch+32 > buffer_size )
src = new uchar[src_pitch+32];
if( !color )
if( m_bpp <= 8 )
{
CvtPaletteToGray( m_palette, gray_palette, 1 << m_bpp );
}
if( setjmp( m_strm.JmpBuf()) == 0 )
{
for( int s = 0; s < m_strips; s++ )
{
int y_limit = m_rows_per_strip;
y_limit += y;
if( y_limit > m_height ) y_limit = m_height;
m_strm.SetPos( m_offsets[s] );
if( m_compression == TIFF_UNCOMP )
{
for( ; y < y_limit; y++, data += step )
{
m_strm.GetBytes( src, src_pitch );
if( color )
switch( m_bpp )
{
case 1:
FillColorRow1( data, src, m_width, m_palette );
break;
case 4:
FillColorRow4( data, src, m_width, m_palette );
break;
case 8:
FillColorRow8( data, src, m_width, m_palette );
break;
case 24:
icvCvt_RGB2BGR_8u_C3R( src, 0, data, 0, cvSize(m_width,1) );
break;
case 32:
icvCvt_BGRA2BGR_8u_C4C3R( src, 0, data, 0, cvSize(m_width,1), 2 );
break;
default:
assert(0);
goto bad_decoding_end;
}
else
switch( m_bpp )
{
case 1:
FillGrayRow1( data, src, m_width, gray_palette );
break;
case 4:
FillGrayRow4( data, src, m_width, gray_palette );
break;
case 8:
FillGrayRow8( data, src, m_width, gray_palette );
break;
case 24:
icvCvt_BGR2Gray_8u_C3C1R( src, 0, data, 0, cvSize(m_width,1), 2 );
break;
case 32:
icvCvt_BGRA2Gray_8u_C4C1R( src, 0, data, 0, cvSize(m_width,1), 2 );
break;
default:
assert(0);
goto bad_decoding_end;
}
}
}
else
{
}
result = true;
bad_decoding_end:
;
}
}
if( src != buffer ) delete[] src;
return result;
}
#endif
//////////////////////////////////////////////////////////////////////////////////////////
GrFmtTiffWriter::GrFmtTiffWriter( const char* filename ) : GrFmtWriter( filename )
{
}
GrFmtTiffWriter::~GrFmtTiffWriter()
{
}
void GrFmtTiffWriter::WriteTag( TiffTag tag, TiffFieldType fieldType,
int count, int value )
{
m_strm.PutWord( tag );
m_strm.PutWord( fieldType );
m_strm.PutDWord( count );
m_strm.PutDWord( value );
}
bool GrFmtTiffWriter::WriteImage( const uchar* data, int step,
int width, int height, int /*depth*/, int channels )
{
bool result = false;
int fileStep = width*channels;
assert( data && width > 0 && height > 0 && step >= fileStep);
if( m_strm.Open( m_filename ) )
{
int rowsPerStrip = (1 << 13)/fileStep;
if( rowsPerStrip < 1 )
rowsPerStrip = 1;
if( rowsPerStrip > height )
rowsPerStrip = height;
int i, stripCount = (height + rowsPerStrip - 1) / rowsPerStrip;
/*#if defined _DEBUG || !defined WIN32
int uncompressedRowSize = rowsPerStrip * fileStep;
#endif*/
int directoryOffset = 0;
int* stripOffsets = new int[stripCount];
short* stripCounts = new short[stripCount];
uchar* buffer = new uchar[fileStep + 32];
int stripOffsetsOffset = 0;
int stripCountsOffset = 0;
int bitsPerSample = 8; // TODO support 16 bit
int y = 0;
m_strm.PutBytes( fmtSignTiffII, 4 );
m_strm.PutDWord( directoryOffset );
// write an image data first (the most reasonable way
// for compressed images)
for( i = 0; i < stripCount; i++ )
{
int limit = y + rowsPerStrip;
if( limit > height )
limit = height;
stripOffsets[i] = m_strm.GetPos();
for( ; y < limit; y++, data += step )
{
if( channels == 3 )
icvCvt_BGR2RGB_8u_C3R( data, 0, buffer, 0, cvSize(width,1) );
else if( channels == 4 )
icvCvt_BGRA2RGBA_8u_C4R( data, 0, buffer, 0, cvSize(width,1) );
m_strm.PutBytes( channels > 1 ? buffer : data, fileStep );
}
stripCounts[i] = (short)(m_strm.GetPos() - stripOffsets[i]);
/*assert( stripCounts[i] == uncompressedRowSize ||
stripCounts[i] < uncompressedRowSize &&
i == stripCount - 1);*/
}
if( stripCount > 2 )
{
stripOffsetsOffset = m_strm.GetPos();
for( i = 0; i < stripCount; i++ )
m_strm.PutDWord( stripOffsets[i] );
stripCountsOffset = m_strm.GetPos();
for( i = 0; i < stripCount; i++ )
m_strm.PutWord( stripCounts[i] );
}
else if(stripCount == 2)
{
stripOffsetsOffset = m_strm.GetPos();
for (i = 0; i < stripCount; i++)
{
m_strm.PutDWord (stripOffsets [i]);
}
stripCountsOffset = stripCounts [0] + (stripCounts [1] << 16);
}
else
{
stripOffsetsOffset = stripOffsets[0];
stripCountsOffset = stripCounts[0];
}
if( channels > 1 )
{
bitsPerSample = m_strm.GetPos();
m_strm.PutWord(8);
m_strm.PutWord(8);
m_strm.PutWord(8);
if( channels == 4 )
m_strm.PutWord(8);
}
directoryOffset = m_strm.GetPos();
// write header
m_strm.PutWord( 9 );
/* warning: specification 5.0 of Tiff want to have tags in
ascending order. This is a non-fatal error, but this cause
warning with some tools. So, keep this in ascending order */
WriteTag( TIFF_TAG_WIDTH, TIFF_TYPE_LONG, 1, width );
WriteTag( TIFF_TAG_HEIGHT, TIFF_TYPE_LONG, 1, height );
WriteTag( TIFF_TAG_BITS_PER_SAMPLE,
TIFF_TYPE_SHORT, channels, bitsPerSample );
WriteTag( TIFF_TAG_COMPRESSION, TIFF_TYPE_LONG, 1, TIFF_UNCOMP );
WriteTag( TIFF_TAG_PHOTOMETRIC, TIFF_TYPE_SHORT, 1, channels > 1 ? 2 : 1 );
WriteTag( TIFF_TAG_STRIP_OFFSETS, TIFF_TYPE_LONG,
stripCount, stripOffsetsOffset );
WriteTag( TIFF_TAG_SAMPLES_PER_PIXEL, TIFF_TYPE_SHORT, 1, channels );
WriteTag( TIFF_TAG_ROWS_PER_STRIP, TIFF_TYPE_LONG, 1, rowsPerStrip );
WriteTag( TIFF_TAG_STRIP_COUNTS,
stripCount > 1 ? TIFF_TYPE_SHORT : TIFF_TYPE_LONG,
stripCount, stripCountsOffset );
m_strm.PutDWord(0);
m_strm.Close();
// write directory offset
FILE* f = fopen( m_filename, "r+b" );
buffer[0] = (uchar)directoryOffset;
buffer[1] = (uchar)(directoryOffset >> 8);
buffer[2] = (uchar)(directoryOffset >> 16);
buffer[3] = (uchar)(directoryOffset >> 24);
fseek( f, 4, SEEK_SET );
fwrite( buffer, 1, 4, f );
fclose(f);
delete[] stripOffsets;
delete[] stripCounts;
delete[] buffer;
result = true;
}
return result;
}