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imgcodecs(tiff): drop legacy code

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Drop code under *undefined* HAVE_TIFF
(violates several policies, like a way to turn off tiff support)
This commit is contained in:
Alexander Alekhin 2017-09-24 22:28:36 +00:00
parent 39e742765a
commit 08b5dc64af
3 changed files with 47 additions and 230 deletions
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257
modules/imgcodecs/src/grfmt_tiff.cpp
View File

@ -46,21 +46,25 @@
\****************************************************************************************/
#include "precomp.hpp"
#ifdef HAVE_TIFF
#include "grfmt_tiff.hpp"
#include <opencv2/imgproc.hpp>
#include <limits>
// TODO FIXIT Conflict declarations for common types like int64/uint64
namespace tiff_dummy_namespace {
#include "tiff.h"
#include "tiffio.h"
}
using namespace tiff_dummy_namespace;
namespace cv
{
static const char fmtSignTiffII[] = "II\x2a\x00";
#ifdef HAVE_TIFF
static const char fmtSignTiffMM[] = "MM\x00\x2a";
#include "tiff.h"
#include "tiffio.h"
static int grfmt_tiff_err_handler_init = 0;
static void GrFmtSilentTIFFErrorHandler( const char*, const char*, va_list ) {}
@ -119,19 +123,24 @@ ImageDecoder TiffDecoder::newDecoder() const
class TiffDecoderBufHelper
{
Mat& m_buf;
size_t& m_buf_pos;
public:
TiffDecoderBufHelper(Mat& buf, size_t& buf_pos) :
m_buf(buf), m_buf_pos(buf_pos)
{}
static tmsize_t read( thandle_t handle, void* buffer, tmsize_t n )
{
TiffDecoder *decoder = reinterpret_cast<TiffDecoder*>(handle);
const Mat& buf = decoder->m_buf;
TiffDecoderBufHelper *helper = reinterpret_cast<TiffDecoderBufHelper*>(handle);
const Mat& buf = helper->m_buf;
const tmsize_t size = buf.cols*buf.rows*buf.elemSize();
tmsize_t pos = decoder->m_buf_pos;
tmsize_t pos = helper->m_buf_pos;
if ( n > (size - pos) )
{
n = size - pos;
}
memcpy(buffer, buf.ptr() + pos, n);
decoder->m_buf_pos += n;
helper->m_buf_pos += n;
return n;
}
@ -143,10 +152,10 @@ public:
static toff_t seek( thandle_t handle, toff_t offset, int whence )
{
TiffDecoder *decoder = reinterpret_cast<TiffDecoder*>(handle);
const Mat& buf = decoder->m_buf;
TiffDecoderBufHelper *helper = reinterpret_cast<TiffDecoderBufHelper*>(handle);
const Mat& buf = helper->m_buf;
const toff_t size = buf.cols*buf.rows*buf.elemSize();
toff_t new_pos = decoder->m_buf_pos;
toff_t new_pos = helper->m_buf_pos;
switch (whence)
{
case SEEK_SET:
@ -160,14 +169,14 @@ public:
break;
}
new_pos = std::min(new_pos, size);
decoder->m_buf_pos = (size_t)new_pos;
helper->m_buf_pos = (size_t)new_pos;
return new_pos;
}
static int map( thandle_t handle, void** base, toff_t* size )
{
TiffDecoder *decoder = reinterpret_cast<TiffDecoder*>(handle);
Mat& buf = decoder->m_buf;
TiffDecoderBufHelper *helper = reinterpret_cast<TiffDecoderBufHelper*>(handle);
Mat& buf = helper->m_buf;
*base = buf.ptr();
*size = buf.cols*buf.rows*buf.elemSize();
return 0;
@ -175,14 +184,15 @@ public:
static toff_t size( thandle_t handle )
{
TiffDecoder *decoder = reinterpret_cast<TiffDecoder*>(handle);
const Mat& buf = decoder->m_buf;
TiffDecoderBufHelper *helper = reinterpret_cast<TiffDecoderBufHelper*>(handle);
const Mat& buf = helper->m_buf;
return buf.cols*buf.rows*buf.elemSize();
}
static int close( thandle_t /*handle*/ )
static int close( thandle_t handle )
{
// Do nothing.
TiffDecoderBufHelper *helper = reinterpret_cast<TiffDecoderBufHelper*>(handle);
delete helper;
return 0;
}
};
@ -199,7 +209,8 @@ bool TiffDecoder::readHeader()
if ( !m_buf.empty() )
{
m_buf_pos = 0;
tif = TIFFClientOpen( "", "r", reinterpret_cast<thandle_t>(this), &TiffDecoderBufHelper::read,
TiffDecoderBufHelper* buf_helper = new TiffDecoderBufHelper(this->m_buf, this->m_buf_pos);
tif = TIFFClientOpen( "", "r", reinterpret_cast<thandle_t>(buf_helper), &TiffDecoderBufHelper::read,
&TiffDecoderBufHelper::write, &TiffDecoderBufHelper::seek,
&TiffDecoderBufHelper::close, &TiffDecoderBufHelper::size,
&TiffDecoderBufHelper::map, /*unmap=*/0 );
@ -548,8 +559,6 @@ bool TiffDecoder::readHdrData(Mat& img)
return true;
}
#endif
//////////////////////////////////////////////////////////////////////////////////////////
TiffEncoder::TiffEncoder()
@ -569,11 +578,7 @@ ImageEncoder TiffEncoder::newEncoder() const
bool TiffEncoder::isFormatSupported( int depth ) const
{
#ifdef HAVE_TIFF
return depth == CV_8U || depth == CV_16U || depth == CV_32F;
#else
return depth == CV_8U || depth == CV_16U;
#endif
}
void TiffEncoder::writeTag( WLByteStream& strm, TiffTag tag,
@ -586,8 +591,6 @@ void TiffEncoder::writeTag( WLByteStream& strm, TiffTag tag,
strm.putDWord( value );
}
#ifdef HAVE_TIFF
class TiffEncoderBufHelper
{
public:
@ -854,204 +857,20 @@ bool TiffEncoder::writeHdr(const Mat& _img)
return true;
}
#endif
#ifdef HAVE_TIFF
bool TiffEncoder::write( const Mat& img, const std::vector<int>& params)
#else
bool TiffEncoder::write( const Mat& img, const std::vector<int>& /*params*/)
#endif
{
int depth = img.depth();
#ifdef HAVE_TIFF
if(img.type() == CV_32FC3)
{
return writeHdr(img);
return writeHdr(img); // TODO Rename
}
#endif
if (depth != CV_8U && depth != CV_16U)
return false;
CV_Assert(depth == CV_8U || depth == CV_16U);
#ifdef HAVE_TIFF
return writeLibTiff(img, params);
#else
int channels = img.channels();
int width = img.cols, height = img.rows;
int bytesPerChannel = depth == CV_8U ? 1 : 2;
int fileStep = width * channels * bytesPerChannel;
}
WLByteStream strm;
} // namespace
if( m_buf )
{
if( !strm.open(*m_buf) )
return false;
}
else
{
if( !strm.open(m_filename) )
return false;
}
int rowsPerStrip = (1 << 13)/fileStep;
if( rowsPerStrip < 1 )
rowsPerStrip = 1;
if( rowsPerStrip > height )
rowsPerStrip = height;
int i, stripCount = (height + rowsPerStrip - 1) / rowsPerStrip;
if( m_buf )
m_buf->reserve( alignSize(stripCount*8 + fileStep*height + 256, 256) );
/*#if defined _DEBUG || !defined _WIN32
int uncompressedRowSize = rowsPerStrip * fileStep;
#endif*/
int directoryOffset = 0;
AutoBuffer<int> stripOffsets(stripCount);
AutoBuffer<short> stripCounts(stripCount);
AutoBuffer<uchar> _buffer(fileStep+32);
uchar* buffer = _buffer;
int stripOffsetsOffset = 0;
int stripCountsOffset = 0;
int bitsPerSample = 8 * bytesPerChannel;
int y = 0;
strm.putBytes( fmtSignTiffII, 4 );
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] = strm.getPos();
for( ; y < limit; y++ )
{
if( channels == 3 )
{
if (depth == CV_8U)
icvCvt_BGR2RGB_8u_C3R( img.ptr(y), 0, buffer, 0, cvSize(width,1) );
else
icvCvt_BGR2RGB_16u_C3R( img.ptr<ushort>(y), 0, (ushort*)buffer, 0, cvSize(width,1) );
}
else
{
if( channels == 4 )
{
if (depth == CV_8U)
icvCvt_BGRA2RGBA_8u_C4R( img.ptr(y), 0, buffer, 0, cvSize(width,1) );
else
icvCvt_BGRA2RGBA_16u_C4R( img.ptr<ushort>(y), 0, (ushort*)buffer, 0, cvSize(width,1) );
}
}
strm.putBytes( channels > 1 ? buffer : img.ptr(y), fileStep );
}
stripCounts[i] = (short)(strm.getPos() - stripOffsets[i]);
/*assert( stripCounts[i] == uncompressedRowSize ||
stripCounts[i] < uncompressedRowSize &&
i == stripCount - 1);*/
}
if( stripCount > 2 )
{
stripOffsetsOffset = strm.getPos();
for( i = 0; i < stripCount; i++ )
strm.putDWord( stripOffsets[i] );
stripCountsOffset = strm.getPos();
for( i = 0; i < stripCount; i++ )
strm.putWord( stripCounts[i] );
}
else if(stripCount == 2)
{
stripOffsetsOffset = strm.getPos();
for (i = 0; i < stripCount; i++)
{
strm.putDWord (stripOffsets [i]);
}
stripCountsOffset = stripCounts [0] + (stripCounts [1] << 16);
}
else
{
stripOffsetsOffset = stripOffsets[0];
stripCountsOffset = stripCounts[0];
}
if( channels > 1 )
{
int bitsPerSamplePos = strm.getPos();
strm.putWord(bitsPerSample);
strm.putWord(bitsPerSample);
strm.putWord(bitsPerSample);
if( channels == 4 )
strm.putWord(bitsPerSample);
bitsPerSample = bitsPerSamplePos;
}
directoryOffset = strm.getPos();
// write header
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( strm, TIFF_TAG_WIDTH, TIFF_TYPE_LONG, 1, width );
writeTag( strm, TIFF_TAG_HEIGHT, TIFF_TYPE_LONG, 1, height );
writeTag( strm, TIFF_TAG_BITS_PER_SAMPLE,
TIFF_TYPE_SHORT, channels, bitsPerSample );
writeTag( strm, TIFF_TAG_COMPRESSION, TIFF_TYPE_LONG, 1, TIFF_UNCOMP );
writeTag( strm, TIFF_TAG_PHOTOMETRIC, TIFF_TYPE_SHORT, 1, channels > 1 ? 2 : 1 );
writeTag( strm, TIFF_TAG_STRIP_OFFSETS, TIFF_TYPE_LONG,
stripCount, stripOffsetsOffset );
writeTag( strm, TIFF_TAG_SAMPLES_PER_PIXEL, TIFF_TYPE_SHORT, 1, channels );
writeTag( strm, TIFF_TAG_ROWS_PER_STRIP, TIFF_TYPE_LONG, 1, rowsPerStrip );
writeTag( strm, TIFF_TAG_STRIP_COUNTS,
stripCount > 1 ? TIFF_TYPE_SHORT : TIFF_TYPE_LONG,
stripCount, stripCountsOffset );
strm.putDWord(0);
strm.close();
if( m_buf )
{
(*m_buf)[4] = (uchar)directoryOffset;
(*m_buf)[5] = (uchar)(directoryOffset >> 8);
(*m_buf)[6] = (uchar)(directoryOffset >> 16);
(*m_buf)[7] = (uchar)(directoryOffset >> 24);
}
else
{
// write directory offset
FILE* f = fopen( m_filename.c_str(), "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);
}
return true;
#endif
}
}

18
modules/imgcodecs/src/grfmt_tiff.hpp
View File

@ -45,6 +45,8 @@
#include "grfmt_base.hpp"
#ifdef HAVE_TIFF
namespace cv
{
@ -87,12 +89,7 @@ enum TiffFieldType
};
#ifdef HAVE_TIFF
// libtiff based TIFF codec
class TiffDecoderBufHelper;
class TiffDecoder : public BaseImageDecoder
{
public:
@ -109,9 +106,6 @@ public:
ImageDecoder newDecoder() const;
protected:
friend class TiffDecoderBufHelper;
void* m_tif;
int normalizeChannelsNumber(int channels) const;
bool readHdrData(Mat& img);
@ -123,8 +117,6 @@ private:
TiffDecoder& operator=(const TiffDecoder &); // assign disabled
};
#endif
// ... and writer
class TiffEncoder : public BaseImageEncoder
{
@ -144,8 +136,14 @@ protected:
bool writeLibTiff( const Mat& img, const std::vector<int>& params );
bool writeHdr( const Mat& img );
private:
TiffEncoder(const TiffEncoder &); // copy disabled
TiffEncoder& operator=(const TiffEncoder &); // assign disabled
};
}
#endif // HAVE_TIFF
#endif/*_GRFMT_TIFF_H_*/

2
modules/imgcodecs/src/loadsave.cpp
View File

@ -147,8 +147,8 @@ struct ImageCodecInitializer
encoders.push_back( makePtr<PxMEncoder>() );
#ifdef HAVE_TIFF
decoders.push_back( makePtr<TiffDecoder>() );
#endif
encoders.push_back( makePtr<TiffEncoder>() );
#endif
#ifdef HAVE_PNG
decoders.push_back( makePtr<PngDecoder>() );
encoders.push_back( makePtr<PngEncoder>() );