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grfmt_tiff.cpp
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1717 lines (1544 loc) · 65.9 KB
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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
/****************************************************************************************\
A part of the file implements TIFF reader on base of libtiff library
(see otherlibs/_graphics/readme.txt for copyright notice)
\****************************************************************************************/
#include "precomp.hpp"
#ifdef HAVE_TIFF
#include <opencv2/core/utils/logger.hpp>
#include "grfmt_tiff.hpp"
#include <limits>
#include <string>
#include <cstdarg>
#include "tiff.h"
#include "tiffio.h"
#ifdef TIFFLIB_AT_LEAST
#if TIFFLIB_AT_LEAST(4, 5, 0)
#define OCV_HAVE_TIFF_OPEN_OPTIONS
#endif
#endif
namespace cv
{
// to extend cvtColor() to support CV_8S, CV_16S, CV_32S and CV_64F.
static void extend_cvtColor( InputArray _src, OutputArray _dst, int code );
#define CV_TIFF_CHECK_CALL(call) \
if (0 == (call)) { \
CV_LOG_WARNING(NULL, "OpenCV TIFF(line " << __LINE__ << "): failed " #call); \
CV_Error(Error::StsError, "OpenCV TIFF: failed " #call); \
}
#define CV_TIFF_CHECK_CALL_DEBUG(call) \
if (0 == (call)) { \
CV_LOG_DEBUG(NULL, "OpenCV TIFF(line " << __LINE__ << "): failed optional call: " #call ", ignoring"); \
}
static void cv_tiffCloseHandle(void* handle)
{
TIFFClose((TIFF*)handle);
}
static std::string vformat(const char* fmt, va_list ap)
{
if (!fmt)
return {};
va_list ap_copy;
va_copy(ap_copy, ap);
const int len = std::vsnprintf(nullptr, 0, fmt, ap_copy);
va_end(ap_copy);
if (len < 0)
return fmt;
std::string buf(static_cast<size_t>(len) + 1, '\0');
std::vsnprintf(&buf[0], buf.size(), fmt, ap);
buf.pop_back();
return buf;
}
static std::string formatTiffMessage(const char* module, const char* fmt, va_list ap)
{
std::stringstream ss;
if (module && module[0] != '\0')
ss << module << ": ";
ss << cv::vformat(fmt, ap);
return ss.str();
}
static int TIFF_Error(TIFF *, void *, const char* module, const char* fmt, va_list ap)
{
CV_LOG_ERROR(NULL, formatTiffMessage(module, fmt, ap));
return 1;
}
static int TIFF_Warning(TIFF *, void *, const char* module, const char* fmt, va_list ap)
{
CV_LOG_WARNING(NULL, formatTiffMessage(module, fmt, ap));
return 1;
}
#ifdef OCV_HAVE_TIFF_OPEN_OPTIONS
static TIFFOpenOptions* cv_tiffCreateOptions()
{
auto opts = TIFFOpenOptionsAlloc();
TIFFOpenOptionsSetErrorHandlerExtR(opts, &TIFF_Error, nullptr);
TIFFOpenOptionsSetWarningHandlerExtR(opts, &TIFF_Warning, nullptr);
#if TIFFLIB_AT_LEAST(4, 7, 1)
TIFFOpenOptionsSetWarnAboutUnknownTags(opts, 1);
#endif
return opts;
}
#endif
static TIFF* cv_tiffOpen(const char* filename, const char* mode)
{
#ifdef OCV_HAVE_TIFF_OPEN_OPTIONS
auto opts = cv_tiffCreateOptions();
auto tiff = TIFFOpenExt(filename, mode, opts);
TIFFOpenOptionsFree(opts);
return tiff;
#else
return TIFFOpen(filename, mode);
#endif
}
static TIFF* cv_tiffClientOpen(const char* name, const char* mode, thandle_t clientdata,
TIFFReadWriteProc readproc, TIFFReadWriteProc writeproc,
TIFFSeekProc seekproc, TIFFCloseProc closeproc,
TIFFSizeProc sizeproc, TIFFMapFileProc mapproc,
TIFFUnmapFileProc unmapproc)
{
#ifdef OCV_HAVE_TIFF_OPEN_OPTIONS
auto opts = cv_tiffCreateOptions();
auto tiff = TIFFClientOpenExt(name, mode, clientdata, readproc, writeproc,
seekproc, closeproc, sizeproc, mapproc, unmapproc, opts);
TIFFOpenOptionsFree(opts);
return tiff;
#else
return TIFFClientOpen(name, mode, clientdata, readproc, writeproc,
seekproc, closeproc, sizeproc, mapproc, unmapproc);
#endif
}
#ifndef OCV_HAVE_TIFF_OPEN_OPTIONS
static void cv_tiffErrorHandler(const char* module, const char* fmt, va_list ap)
{
(void) TIFF_Error(nullptr, nullptr, module, fmt, ap);
}
static void cv_tiffWarningHandler(const char* module, const char* fmt, va_list ap)
{
(void) TIFF_Warning(nullptr, nullptr, module, fmt, ap);
}
static bool cv_tiffSetErrorHandler_()
{
TIFFSetErrorHandler(cv_tiffErrorHandler);
TIFFSetWarningHandler(cv_tiffWarningHandler);
return true;
}
#endif
static bool cv_tiffSetErrorHandler()
{
#ifndef OCV_HAVE_TIFF_OPEN_OPTIONS
static bool v = cv_tiffSetErrorHandler_();
return v;
#else
return true;
#endif
}
static const char fmtSignTiffII[] = "II\x2a\x00";
static const char fmtSignTiffMM[] = "MM\x00\x2a";
static const char fmtSignBigTiffII[] = "II\x2b\x00";
static const char fmtSignBigTiffMM[] = "MM\x00\x2b";
TiffDecoder::TiffDecoder()
{
m_hdr = false;
m_buf_supported = true;
m_buf_pos = 0;
}
void TiffDecoder::close()
{
m_tif.release();
}
TiffDecoder::~TiffDecoder()
{
close();
}
size_t TiffDecoder::signatureLength() const
{
return 4;
}
bool TiffDecoder::checkSignature( const String& signature ) const
{
return signature.size() >= 4 &&
(memcmp(signature.c_str(), fmtSignTiffII, 4) == 0 ||
memcmp(signature.c_str(), fmtSignTiffMM, 4) == 0 ||
memcmp(signature.c_str(), fmtSignBigTiffII, 4) == 0 ||
memcmp(signature.c_str(), fmtSignBigTiffMM, 4) == 0);
}
int TiffDecoder::normalizeChannelsNumber(int channels) const
{
CV_Check(channels, channels >= 1 && channels <= 4, "Unsupported number of channels");
return channels;
}
ImageDecoder TiffDecoder::newDecoder() const
{
cv_tiffSetErrorHandler();
return makePtr<TiffDecoder>();
}
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 )
{
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 = helper->m_buf_pos;
if ( n > (size - pos) )
{
n = size - pos;
}
std::memcpy(buffer, buf.ptr() + pos, n);
helper->m_buf_pos += n;
return n;
}
static tmsize_t write( thandle_t /*handle*/, void* /*buffer*/, tmsize_t /*n*/ )
{
// Not used for decoding.
return 0;
}
static toff_t seek( thandle_t handle, toff_t offset, int whence )
{
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 = helper->m_buf_pos;
switch (whence)
{
case SEEK_SET:
new_pos = offset;
break;
case SEEK_CUR:
new_pos += offset;
break;
case SEEK_END:
new_pos = size + offset;
break;
}
new_pos = std::min(new_pos, size);
helper->m_buf_pos = (size_t)new_pos;
return new_pos;
}
static int map( thandle_t handle, void** base, toff_t* size )
{
TiffDecoderBufHelper *helper = reinterpret_cast<TiffDecoderBufHelper*>(handle);
Mat& buf = helper->m_buf;
*base = buf.ptr();
*size = buf.cols*buf.rows*buf.elemSize();
return 0;
}
static toff_t size( thandle_t handle )
{
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 )
{
TiffDecoderBufHelper *helper = reinterpret_cast<TiffDecoderBufHelper*>(handle);
delete helper;
return 0;
}
};
bool TiffDecoder::readHeader()
{
bool result = false;
TIFF* tif = static_cast<TIFF*>(m_tif.get());
if (!tif)
{
// TIFFOpen() mode flags are different to fopen(). A 'b' in mode "rb" has no effect when reading.
// http://www.simplesystems.org/libtiff/functions/TIFFOpen.html
if ( !m_buf.empty() )
{
m_buf_pos = 0;
TiffDecoderBufHelper* buf_helper = new TiffDecoderBufHelper(this->m_buf, this->m_buf_pos);
tif = cv_tiffClientOpen( "", "r", reinterpret_cast<thandle_t>(buf_helper), &TiffDecoderBufHelper::read,
&TiffDecoderBufHelper::write, &TiffDecoderBufHelper::seek,
&TiffDecoderBufHelper::close, &TiffDecoderBufHelper::size,
&TiffDecoderBufHelper::map, /*unmap=*/0 );
if (!tif)
delete buf_helper;
}
else
{
tif = cv_tiffOpen(m_filename.c_str(), "r");
}
if (tif)
m_tif.reset(tif, cv_tiffCloseHandle);
else
m_tif.release();
}
if (tif)
{
uint32_t wdth = 0, hght = 0;
uint16_t photometric = 0;
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &wdth));
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &hght));
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric));
{
bool isGrayScale = photometric == PHOTOMETRIC_MINISWHITE || photometric == PHOTOMETRIC_MINISBLACK;
uint16_t bpp = 8, ncn = isGrayScale ? 1 : 3;
if (0 == TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bpp))
{
// TIFF bi-level images don't require TIFFTAG_BITSPERSAMPLE tag
bpp = 1;
}
CV_TIFF_CHECK_CALL_DEBUG(TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &ncn));
m_width = wdth;
m_height = hght;
m_frame_count = TIFFNumberOfDirectories(tif);
if (ncn == 3 && photometric == PHOTOMETRIC_LOGLUV)
{
m_type = CV_32FC3;
m_hdr = true;
return true;
}
m_hdr = false;
if( bpp > 8 &&
((photometric > 2) ||
(ncn != 1 && ncn != 3 && ncn != 4)))
bpp = 8;
uint16_t sample_format = SAMPLEFORMAT_UINT;
TIFFGetField(tif, TIFFTAG_SAMPLEFORMAT, &sample_format);
int wanted_channels = normalizeChannelsNumber(ncn);
switch (bpp)
{
case 1:
{
CV_Check((int)sample_format, sample_format == SAMPLEFORMAT_UINT || sample_format == SAMPLEFORMAT_INT, "");
int depth = sample_format == SAMPLEFORMAT_INT ? CV_8S : CV_8U;
m_type = CV_MAKETYPE(depth, !isGrayScale ? wanted_channels : 1);
result = true;
break;
}
case 4:
//support 4-bit palette.
if (photometric == PHOTOMETRIC_PALETTE)
{
CV_Check((int)sample_format, sample_format == SAMPLEFORMAT_UINT || sample_format == SAMPLEFORMAT_INT, "");
int depth = sample_format == SAMPLEFORMAT_INT ? CV_8S : CV_8U;
m_type = CV_MAKETYPE(depth, 3);
result = true;
}
else
CV_Error(cv::Error::StsError, "bitsperpixel value is 4 should be palette.");
break;
case 8:
{
//Palette color, the value of the component is used as an index into the red,
//green and blue curves in the ColorMap field to retrieve an RGB triplet that defines the color.
CV_Check((int)sample_format, sample_format == SAMPLEFORMAT_UINT || sample_format == SAMPLEFORMAT_INT, "");
int depth = sample_format == SAMPLEFORMAT_INT ? CV_8S : CV_8U;
if (photometric == PHOTOMETRIC_PALETTE)
m_type = CV_MAKETYPE(depth, 3);
else
m_type = CV_MAKETYPE(depth, !isGrayScale ? wanted_channels : 1);
result = true;
break;
}
case 10:
case 12:
case 14:
case 16:
{
CV_Check((int)sample_format, sample_format == SAMPLEFORMAT_UINT || sample_format == SAMPLEFORMAT_INT, "");
int depth = sample_format == SAMPLEFORMAT_INT ? CV_16S : CV_16U;
m_type = CV_MAKETYPE(depth, !isGrayScale ? wanted_channels : 1);
result = true;
break;
}
case 32:
{
CV_Check((int)sample_format, sample_format == SAMPLEFORMAT_IEEEFP || sample_format == SAMPLEFORMAT_INT, "");
int depth = sample_format == SAMPLEFORMAT_IEEEFP ? CV_32F : CV_32S;
m_type = CV_MAKETYPE(depth, wanted_channels);
result = true;
break;
}
case 64:
CV_CheckEQ((int)sample_format, SAMPLEFORMAT_IEEEFP, "");
m_type = CV_MAKETYPE(CV_64F, wanted_channels);
result = true;
break;
default:
CV_Error(cv::Error::StsError, "Invalid bitsperpixel value read from TIFF header! Must be 1, 8, 10, 12, 14, 16, 32 or 64.");
}
}
}
if( !result )
close();
return result;
}
bool TiffDecoder::nextPage()
{
// Prepare the next page, if any.
return !m_tif.empty() &&
TIFFReadDirectory(static_cast<TIFF*>(m_tif.get())) &&
readHeader();
}
static void fixOrientationPartial(Mat &img, uint16_t orientation)
{
switch(orientation) {
case ORIENTATION_RIGHTTOP:
case ORIENTATION_LEFTBOT:
flip(img, img, -1);
/* fall through */
case ORIENTATION_LEFTTOP:
case ORIENTATION_RIGHTBOT:
transpose(img, img);
break;
}
}
static void fixOrientationFull(Mat &img, int orientation)
{
switch(orientation) {
case ORIENTATION_TOPRIGHT:
flip(img, img, 1);
break;
case ORIENTATION_BOTRIGHT:
flip(img, img, -1);
break;
case ORIENTATION_BOTLEFT:
flip(img, img, 0);
break;
case ORIENTATION_LEFTTOP:
transpose(img, img);
break;
case ORIENTATION_RIGHTTOP:
transpose(img, img);
flip(img, img, 1);
break;
case ORIENTATION_RIGHTBOT:
transpose(img, img);
flip(img, img, -1);
break;
case ORIENTATION_LEFTBOT:
transpose(img, img);
flip(img, img, 0);
break;
}
}
/**
* Fix orientation defined in tag 274.
* For 8 bit some corrections are done by TIFFReadRGBAStrip/Tile already.
* Not so for 16/32/64 bit.
*/
static void fixOrientation(Mat &img, uint16_t orientation, bool isOrientationFull)
{
if( isOrientationFull )
{
fixOrientationFull(img, orientation);
}
else
{
fixOrientationPartial(img, orientation);
}
}
static void _unpack10To16(const uchar* src, const uchar* srcEnd, ushort* dst, ushort* dstEnd, size_t expectedDstElements)
{
//5*8b=4*10b : 5 src for 4 dst
constexpr const size_t packedBitsCount = 10;
constexpr const size_t packedBitsMask = ((1<<packedBitsCount)-1);
constexpr const size_t srcElementsPerPacket = 5;
constexpr const size_t dstElementsPerPacket = 4;
constexpr const size_t bitsPerPacket = dstElementsPerPacket*packedBitsCount;
const size_t fullPacketsCount = std::min({
expectedDstElements/dstElementsPerPacket,
(static_cast<size_t>(srcEnd-src)/srcElementsPerPacket),
(static_cast<size_t>(dstEnd-dst)/dstElementsPerPacket)
});
union {
uint64_t u64;
uint8_t u8[8];
} buf = {0};
for(size_t i = 0 ; i<fullPacketsCount ; ++i)
{
for(size_t j = 0 ; j<srcElementsPerPacket ; ++j)
buf.u8[srcElementsPerPacket-1-j] = *src++;
for(size_t j = 0 ; j<dstElementsPerPacket ; ++j)
{
dst[dstElementsPerPacket-1-j] = static_cast<ushort>(buf.u64 & packedBitsMask);
buf.u64 >>= packedBitsCount;
}
dst += dstElementsPerPacket;
}
size_t remainingDstElements = std::min(
expectedDstElements-fullPacketsCount*dstElementsPerPacket,
static_cast<size_t>(dstEnd-dst)
);
bool stop = !remainingDstElements;
while(!stop)
{
for(size_t j = 0 ; j<srcElementsPerPacket ; ++j)
buf.u8[srcElementsPerPacket-1-j] = (src<srcEnd) ? *src++ : 0;
for(size_t j = 0 ; j<dstElementsPerPacket ; ++j)
{
stop |= !(remainingDstElements--);
if (!stop)
*dst++ = static_cast<ushort>((buf.u64 >> (bitsPerPacket-(j+1)*packedBitsCount)) & packedBitsMask);
}
}//end while(!stop)
}
//end _unpack10To16()
static void _unpack12To16(const uchar* src, const uchar* srcEnd, ushort* dst, ushort* dstEnd, size_t expectedDstElements)
{
//3*8b=2*12b : 3 src for 2 dst
constexpr const size_t packedBitsCount = 12;
constexpr const size_t packedBitsMask = ((1<<packedBitsCount)-1);
constexpr const size_t srcElementsPerPacket = 3;
constexpr const size_t dstElementsPerPacket = 2;
constexpr const size_t bitsPerPacket = dstElementsPerPacket*packedBitsCount;
const size_t fullPacketsCount = std::min({
expectedDstElements/dstElementsPerPacket,
(static_cast<size_t>(srcEnd-src)/srcElementsPerPacket),
(static_cast<size_t>(dstEnd-dst)/dstElementsPerPacket)
});
union {
uint32_t u32;
uint8_t u8[4];
} buf = {0};
for(size_t i = 0 ; i<fullPacketsCount ; ++i)
{
for(size_t j = 0 ; j<srcElementsPerPacket ; ++j)
buf.u8[srcElementsPerPacket-1-j] = *src++;
for(size_t j = 0 ; j<dstElementsPerPacket ; ++j)
{
dst[dstElementsPerPacket-1-j] = static_cast<ushort>(buf.u32 & packedBitsMask);
buf.u32 >>= packedBitsCount;
}
dst += dstElementsPerPacket;
}
size_t remainingDstElements = std::min(
expectedDstElements-fullPacketsCount*dstElementsPerPacket,
static_cast<size_t>(dstEnd-dst)
);
bool stop = !remainingDstElements;
while(!stop)
{
for(size_t j = 0 ; j<srcElementsPerPacket ; ++j)
buf.u8[srcElementsPerPacket-1-j] = (src<srcEnd) ? *src++ : 0;
for(size_t j = 0 ; j<dstElementsPerPacket ; ++j)
{
stop |= !(remainingDstElements--);
if (!stop)
*dst++ = static_cast<ushort>((buf.u32 >> (bitsPerPacket-(j+1)*packedBitsCount)) & packedBitsMask);
}
}//end while(!stop)
}
//end _unpack12To16()
static void _unpack14To16(const uchar* src, const uchar* srcEnd, ushort* dst, ushort* dstEnd, size_t expectedDstElements)
{
//7*8b=4*14b : 7 src for 4 dst
constexpr const size_t packedBitsCount = 14;
constexpr const size_t packedBitsMask = ((1<<packedBitsCount)-1);
constexpr const size_t srcElementsPerPacket = 7;
constexpr const size_t dstElementsPerPacket = 4;
constexpr const size_t bitsPerPacket = dstElementsPerPacket*packedBitsCount;
const size_t fullPacketsCount = std::min({
expectedDstElements/dstElementsPerPacket,
(static_cast<size_t>(srcEnd-src)/srcElementsPerPacket),
(static_cast<size_t>(dstEnd-dst)/dstElementsPerPacket)
});
union {
uint64_t u64;
uint8_t u8[8];
} buf = {0};
for(size_t i = 0 ; i<fullPacketsCount ; ++i)
{
for(size_t j = 0 ; j<srcElementsPerPacket ; ++j)
buf.u8[srcElementsPerPacket-1-j] = *src++;
for(size_t j = 0 ; j<dstElementsPerPacket ; ++j)
{
dst[dstElementsPerPacket-1-j] = static_cast<ushort>(buf.u64 & packedBitsMask);
buf.u64 >>= packedBitsCount;
}
dst += dstElementsPerPacket;
}
size_t remainingDstElements = std::min(
expectedDstElements-fullPacketsCount*dstElementsPerPacket,
static_cast<size_t>(dstEnd-dst)
);
bool stop = !remainingDstElements;
while(!stop)
{
for(size_t j = 0 ; j<srcElementsPerPacket ; ++j)
buf.u8[srcElementsPerPacket-1-j] = (src<srcEnd) ? *src++ : 0;
for(size_t j = 0 ; j<dstElementsPerPacket ; ++j)
{
stop |= !(remainingDstElements--);
if (!stop)
*dst++ = static_cast<ushort>((buf.u64 >> (bitsPerPacket-(j+1)*packedBitsCount)) & packedBitsMask);
}
}//end while(!stop)
}
//end _unpack14To16()
bool TiffDecoder::readData( Mat& img )
{
int type = img.type();
int depth = CV_MAT_DEPTH(type);
CV_Assert(!m_tif.empty());
TIFF* tif = (TIFF*)m_tif.get();
uint16_t photometric = (uint16_t)-1;
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &photometric));
if (m_hdr && depth >= CV_32F)
{
CV_TIFF_CHECK_CALL(TIFFSetField(tif, TIFFTAG_SGILOGDATAFMT, SGILOGDATAFMT_FLOAT));
}
bool color = img.channels() > 1;
CV_CheckType(type, depth == CV_8U || depth == CV_8S || depth == CV_16U || depth == CV_16S || depth == CV_32S || depth == CV_32F || depth == CV_64F, "");
if (m_width && m_height)
{
int is_tiled = TIFFIsTiled(tif) != 0;
bool isGrayScale = photometric == PHOTOMETRIC_MINISWHITE || photometric == PHOTOMETRIC_MINISBLACK;
uint16_t bpp = 8, ncn = isGrayScale ? 1 : 3;
if (0 == TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &bpp))
{
// TIFF bi-level images don't require TIFFTAG_BITSPERSAMPLE tag
bpp = 1;
}
CV_TIFF_CHECK_CALL_DEBUG(TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &ncn));
uint16_t img_orientation = ORIENTATION_TOPLEFT;
CV_TIFF_CHECK_CALL_DEBUG(TIFFGetField(tif, TIFFTAG_ORIENTATION, &img_orientation));
constexpr const int bitsPerByte = 8;
int dst_bpp = (int)(img.elemSize1() * bitsPerByte);
bool vert_flip = dst_bpp == 8 &&
(img_orientation == ORIENTATION_BOTRIGHT || img_orientation == ORIENTATION_RIGHTBOT ||
img_orientation == ORIENTATION_BOTLEFT || img_orientation == ORIENTATION_LEFTBOT);
int wanted_channels = normalizeChannelsNumber(img.channels());
bool doReadScanline = false;
uint32_t tile_width0 = m_width, tile_height0 = 0;
if (is_tiled)
{
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width0));
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height0));
}
else
{
// optional
CV_TIFF_CHECK_CALL_DEBUG(TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &tile_height0));
}
{
if (tile_width0 == 0)
tile_width0 = m_width;
if (tile_height0 == 0 ||
(!is_tiled && tile_height0 == std::numeric_limits<uint32_t>::max()) )
tile_height0 = m_height;
const int TILE_MAX_WIDTH = (1 << 24);
const int TILE_MAX_HEIGHT = (1 << 24);
CV_Assert((int)tile_width0 > 0 && (int)tile_width0 <= TILE_MAX_WIDTH);
CV_Assert((int)tile_height0 > 0 && (int)tile_height0 <= TILE_MAX_HEIGHT);
const uint64_t MAX_TILE_SIZE = (CV_BIG_UINT(1) << 30);
CV_CheckLE((int)ncn, 4, "");
CV_CheckLE((int)bpp, 64, "");
if (dst_bpp == 8)
{
const int _ncn = 4; // Read RGBA
const int _bpp = 8; // Read 8bit
// if buffer_size(as 32bit RGBA) >= MAX_TILE_SIZE*95%,
// we will use TIFFReadScanline function.
if (
(uint64_t)tile_width0 * tile_height0 * _ncn * std::max(1, (int)(_bpp / bitsPerByte))
>=
( (uint64_t) MAX_TILE_SIZE * 95 / 100)
)
{
uint16_t planerConfig = (uint16_t)-1;
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &planerConfig));
doReadScanline = (!is_tiled) // no tile
&&
( ( ncn == 1 ) || ( ncn == 3 ) || ( ncn == 4 ) )
&&
( ( bpp == 8 ) || ( bpp == 16 ) )
&&
(tile_height0 == (uint32_t) m_height) // single strip
&&
(
(photometric == PHOTOMETRIC_MINISWHITE)
||
(photometric == PHOTOMETRIC_MINISBLACK)
||
(photometric == PHOTOMETRIC_RGB)
)
&&
(planerConfig != PLANARCONFIG_SEPARATE);
// Currently only EXTRASAMPLE_ASSOCALPHA is supported.
if ( doReadScanline && ( ncn == 4 ) )
{
uint16_t extra_samples_num;
uint16_t *extra_samples = NULL;
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_EXTRASAMPLES, &extra_samples_num, &extra_samples ));
doReadScanline = ( extra_samples_num == 1 ) && ( extra_samples[0] == EXTRASAMPLE_ASSOCALPHA );
}
}
if ( !doReadScanline )
{
// we will use TIFFReadRGBA* functions, so allocate temporary buffer for 32bit RGBA
bpp = 8;
ncn = 4;
char errmsg[1024];
if (!TIFFRGBAImageOK(tif, errmsg))
{
CV_LOG_WARNING(NULL, "OpenCV TIFF: TIFFRGBAImageOK: " << errmsg);
close();
return false;
}
}
}
else if (dst_bpp == 16)
{
// if buffer_size >= MAX_TILE_SIZE*95%,
// we will use TIFFReadScanline function.
if (
(uint64_t)tile_width0 * tile_height0 * ncn * std::max(1, (int)(bpp / bitsPerByte))
>=
MAX_TILE_SIZE * 95 / 100
)
{
uint16_t planerConfig = (uint16_t)-1;
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &planerConfig));
doReadScanline = (!is_tiled) // no tile
&&
( ( ncn == 1 ) || ( ncn == 3 ) || ( ncn == 4 ) )
&&
( ( bpp == 8 ) || ( bpp == 16 ) )
&&
(tile_height0 == (uint32_t) m_height) // single strip
&&
(
(photometric == PHOTOMETRIC_MINISWHITE)
||
(photometric == PHOTOMETRIC_MINISBLACK)
||
(photometric == PHOTOMETRIC_RGB)
)
&&
(planerConfig != PLANARCONFIG_SEPARATE);
// Currently only EXTRASAMPLE_ASSOCALPHA is supported.
if ( doReadScanline && ( ncn == 4 ) )
{
uint16_t extra_samples_num;
uint16_t *extra_samples = NULL;
CV_TIFF_CHECK_CALL(TIFFGetField(tif, TIFFTAG_EXTRASAMPLES, &extra_samples_num, &extra_samples ));
doReadScanline = ( extra_samples_num == 1 ) && ( extra_samples[0] == EXTRASAMPLE_ASSOCALPHA );
}
}
}
else if (dst_bpp == 32 || dst_bpp == 64)
{
CV_Assert(ncn == img.channels());
CV_TIFF_CHECK_CALL(TIFFSetField(tif, TIFFTAG_SAMPLEFORMAT, SAMPLEFORMAT_IEEEFP));
}
if ( doReadScanline )
{
// Read each scanlines.
tile_height0 = 1;
}
const size_t src_buffer_bytes_per_row = divUp(static_cast<size_t>(ncn * tile_width0 * bpp), static_cast<size_t>(bitsPerByte));
const size_t src_buffer_size = tile_height0 * src_buffer_bytes_per_row;
CV_CheckLT(src_buffer_size, MAX_TILE_SIZE, "buffer_size is too large: >= 1Gb");
const size_t src_buffer_unpacked_bytes_per_row = divUp(static_cast<size_t>(ncn * tile_width0 * dst_bpp), static_cast<size_t>(bitsPerByte));
const size_t src_buffer_unpacked_size = tile_height0 * src_buffer_unpacked_bytes_per_row;
const bool needsUnpacking = (bpp < dst_bpp);
AutoBuffer<uchar> _src_buffer(src_buffer_size);
uchar* src_buffer = _src_buffer.data();
AutoBuffer<uchar> _src_buffer_unpacked(needsUnpacking ? src_buffer_unpacked_size : 0);
uchar* src_buffer_unpacked = needsUnpacking ? _src_buffer_unpacked.data() : nullptr;
if ( doReadScanline )
{
CV_CheckGE(src_buffer_size,
static_cast<size_t>(TIFFScanlineSize(tif)),
"src_buffer_size is smaller than TIFFScanlineSize().");
}
int tileidx = 0;
#define MAKE_FLAG(a,b) ( (a << 8) | b )
const int convert_flag = MAKE_FLAG( ncn, wanted_channels );
const bool isNeedConvert16to8 = ( doReadScanline ) && ( bpp == 16 ) && ( dst_bpp == 8);
for (int y = 0; y < m_height; y += (int)tile_height0)
{
int tile_height = std::min((int)tile_height0, m_height - y);
const int img_y = vert_flip ? m_height - y - tile_height : y;
for(int x = 0; x < m_width; x += (int)tile_width0, tileidx++)
{
int tile_width = std::min((int)tile_width0, m_width - x);
switch (dst_bpp)
{
case 8:
{
uchar* bstart = src_buffer;
if (doReadScanline)
{
CV_TIFF_CHECK_CALL((int)TIFFReadScanline(tif, (uint32_t*)src_buffer, y) >= 0);
if ( isNeedConvert16to8 )
{
// Convert buffer image from 16bit to 8bit.
int ix;
for ( ix = 0 ; ix < tile_width * ncn - 4; ix += 4 )
{
src_buffer[ ix ] = src_buffer[ ix * 2 + 1 ];
src_buffer[ ix + 1 ] = src_buffer[ ix * 2 + 3 ];
src_buffer[ ix + 2 ] = src_buffer[ ix * 2 + 5 ];
src_buffer[ ix + 3 ] = src_buffer[ ix * 2 + 7 ];
}
for ( ; ix < tile_width * ncn ; ix ++ )
{
src_buffer[ ix ] = src_buffer[ ix * 2 + 1];
}
}
}
else if (!is_tiled)
{
CV_TIFF_CHECK_CALL(TIFFReadRGBAStrip(tif, y, (uint32_t*)src_buffer));
}
else
{
CV_TIFF_CHECK_CALL(TIFFReadRGBATile(tif, x, y, (uint32_t*)src_buffer));
// Tiles fill the buffer from the bottom up
bstart += (tile_height0 - tile_height) * tile_width0 * 4;
}
uchar* img_line_buffer = (uchar*) img.ptr(y, 0);
for (int i = 0; i < tile_height; i++)
{
if (doReadScanline)
{
switch ( convert_flag )
{
case MAKE_FLAG( 1, 1 ): // GRAY to GRAY
std::memcpy( (void*) img_line_buffer,
(void*) bstart,
tile_width * sizeof(uchar) );
break;
case MAKE_FLAG( 1, 3 ): // GRAY to BGR
icvCvt_Gray2BGR_8u_C1C3R( bstart, 0,
img_line_buffer, 0,
Size(tile_width, 1) );
break;
case MAKE_FLAG( 3, 1): // RGB to GRAY
icvCvt_BGR2Gray_8u_C3C1R( bstart, 0,
img_line_buffer, 0,
Size(tile_width, 1) );
break;
case MAKE_FLAG( 3, 3 ): // RGB to BGR
if (m_use_rgb)
std::memcpy( (void*) img_line_buffer,
(void*) bstart,
tile_width * sizeof(uchar) );
else
icvCvt_BGR2RGB_8u_C3R( bstart, 0,
img_line_buffer, 0,
Size(tile_width, 1) );
break;
case MAKE_FLAG( 4, 1 ): // RGBA to GRAY
icvCvt_BGRA2Gray_8u_C4C1R( bstart, 0,
img_line_buffer, 0,
Size(tile_width, 1) );
break;
case MAKE_FLAG( 4, 3 ): // RGBA to BGR
icvCvt_BGRA2BGR_8u_C4C3R( bstart, 0,
img_line_buffer, 0,
Size(tile_width, 1), m_use_rgb ? 0 : 2);
break;
case MAKE_FLAG( 4, 4 ): // RGBA to BGRA
icvCvt_BGRA2RGBA_8u_C4R(bstart, 0,
img_line_buffer, 0,
Size(tile_width, 1) );
break;
default:
CV_LOG_ONCE_ERROR(NULL, "OpenCV TIFF(line " << __LINE__ << "): Unsupported conversion :"
<< " bpp = " << bpp << " ncn = " << (int)ncn
<< " wanted_channels =" << wanted_channels );
break;
}
#undef MAKE_FLAG
}
else if (color)
{
if (wanted_channels == 4)