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PL286/external/opencv/otherlibs/highgui/grfmt_jpeg2000.cpp

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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.
//
//
// Intel License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000, Intel Corporation, 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 Intel Corporation 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*/
#include "_highgui.h"
#ifdef HAVE_JASPER
#include "grfmt_jpeg2000.h"
// JPEG-2000 Filter Factory
GrFmtJpeg2000::GrFmtJpeg2000()
{
m_sign_len = 12;
m_signature = "\x00\x00\x00\x0cjP \r\n\x87\n";
m_description = "JPEG-2000 files (*.jp2)";
jas_init();
}
GrFmtJpeg2000::~GrFmtJpeg2000()
{
jas_cleanup();
}
GrFmtReader* GrFmtJpeg2000::NewReader( const char* filename )
{
return new GrFmtJpeg2000Reader( filename );
}
GrFmtWriter* GrFmtJpeg2000::NewWriter( const char* filename )
{
return new GrFmtJpeg2000Writer( filename );
}
/////////////////////// GrFmtJpeg2000Reader ///////////////////
GrFmtJpeg2000Reader::GrFmtJpeg2000Reader( const char* filename ) : GrFmtReader( filename )
{
m_stream = 0;
m_image = 0;
}
GrFmtJpeg2000Reader::~GrFmtJpeg2000Reader()
{
}
void GrFmtJpeg2000Reader::Close()
{
if( m_stream )
{
jas_stream_close( m_stream );
m_stream = 0;
}
if( m_image )
{
jas_image_destroy( m_image );
m_image = 0;
}
GrFmtReader::Close();
}
bool GrFmtJpeg2000Reader::ReadHeader()
{
bool result = false;
Close();
m_stream = jas_stream_fopen( m_filename, "rb" );
if( m_stream )
{
m_image = jas_image_decode( m_stream, -1, 0 );
if( m_image ) {
m_width = jas_image_width( m_image );
m_height = jas_image_height( m_image );
int cntcmpts = 0; // count the known components
int numcmpts = jas_image_numcmpts( m_image );
for( int i = 0; i < numcmpts; i++ )
{
int depth = jas_image_cmptprec( m_image, i );
if( depth > m_bit_depth )
m_bit_depth = depth;
if( m_bit_depth > 8 )
m_bit_depth = 16;
if( jas_image_cmpttype( m_image, i ) > 2 )
continue;
cntcmpts++;
}
if( cntcmpts )
{
m_iscolor = (cntcmpts > 1);
result = true;
}
}
}
if( !result )
Close();
return result;
}
bool GrFmtJpeg2000Reader::ReadData( uchar* data, int step, int color )
{
bool result = false;
color = color > 0 || ( m_iscolor && color < 0 );
if( m_stream && m_image )
{
bool convert;
int colorspace;
if( color )
{
convert = (jas_image_clrspc( m_image ) != JAS_CLRSPC_SRGB);
colorspace = JAS_CLRSPC_SRGB;
}
else
{
convert = (jas_clrspc_fam( jas_image_clrspc( m_image ) ) != JAS_CLRSPC_FAM_GRAY);
colorspace = JAS_CLRSPC_SGRAY; // TODO GENGRAY or SGRAY?
}
// convert to the desired colorspace
if( convert )
{
jas_cmprof_t *clrprof = jas_cmprof_createfromclrspc( colorspace );
if( clrprof )
{
jas_image_t *img = jas_image_chclrspc( m_image, clrprof, JAS_CMXFORM_INTENT_RELCLR );
if( img )
{
jas_image_destroy( m_image );
m_image = img;
result = true;
}
else
fprintf(stderr, "JPEG 2000 LOADER ERROR: cannot convert colorspace\n");
jas_cmprof_destroy( clrprof );
}
else
fprintf(stderr, "JPEG 2000 LOADER ERROR: unable to create colorspace\n");
}
else
result = true;
if( result )
{
int ncmpts;
int cmptlut[3];
if( color )
{
cmptlut[0] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_RGB_B );
cmptlut[1] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_RGB_G );
cmptlut[2] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_RGB_R );
if( cmptlut[0] < 0 || cmptlut[1] < 0 || cmptlut[0] < 0 )
result = false;
ncmpts = 3;
}
else
{
cmptlut[0] = jas_image_getcmptbytype( m_image, JAS_IMAGE_CT_GRAY_Y );
if( cmptlut[0] < 0 )
result = false;
ncmpts = 1;
}
if( result )
{
for( int i = 0; i < ncmpts; i++ )
{
int maxval = 1 << jas_image_cmptprec( m_image, cmptlut[i] );
int offset = jas_image_cmptsgnd( m_image, cmptlut[i] ) ? maxval / 2 : 0;
int yend = jas_image_cmptbry( m_image, cmptlut[i] );
int ystep = jas_image_cmptvstep( m_image, cmptlut[i] );
int xend = jas_image_cmptbrx( m_image, cmptlut[i] );
int xstep = jas_image_cmpthstep( m_image, cmptlut[i] );
jas_matrix_t *buffer = jas_matrix_create( yend / ystep, xend / xstep );
if( buffer )
{
if( !jas_image_readcmpt( m_image, cmptlut[i], 0, 0, xend / xstep, yend / ystep, buffer ))
{
if( m_bit_depth == 8 || !m_native_depth )
result = ReadComponent8u( data + i, buffer, step, cmptlut[i], maxval, offset, ncmpts );
else
result = ReadComponent16u( ((unsigned short *)data) + i, buffer, step / 2, cmptlut[i], maxval, offset, ncmpts );
if( !result )
{
i = ncmpts;
result = false;
}
}
jas_matrix_destroy( buffer );
}
}
}
}
else
fprintf(stderr, "JPEG2000 LOADER ERROR: colorspace conversion failed\n" );
}
Close();
return result;
}
bool GrFmtJpeg2000Reader::ReadComponent8u( uchar *data, jas_matrix_t *buffer,
int step, int cmpt,
int maxval, int offset, int ncmpts )
{
int xstart = jas_image_cmpttlx( m_image, cmpt );
int xend = jas_image_cmptbrx( m_image, cmpt );
int xstep = jas_image_cmpthstep( m_image, cmpt );
int xoffset = jas_image_tlx( m_image );
int ystart = jas_image_cmpttly( m_image, cmpt );
int yend = jas_image_cmptbry( m_image, cmpt );
int ystep = jas_image_cmptvstep( m_image, cmpt );
int yoffset = jas_image_tly( m_image );
int x, y, x1, y1, j;
int rshift = cvRound(log(maxval/256.)/log(2.));
int lshift = MAX(0, -rshift);
rshift = MAX(0, rshift);
int delta = (rshift > 0 ? 1 << (rshift - 1) : 0) + offset;
for( y = 0; y < yend - ystart; )
{
jas_seqent_t* pix_row = &jas_matrix_get( buffer, y / ystep, 0 );
uchar* dst = data + (y - yoffset) * step - xoffset;
if( xstep == 1 )
{
if( maxval == 256 && offset == 0 )
for( x = 0; x < xend - xstart; x++ )
{
int pix = pix_row[x];
dst[x*ncmpts] = CV_CAST_8U(pix);
}
else
for( x = 0; x < xend - xstart; x++ )
{
int pix = ((pix_row[x] + delta) >> rshift) << lshift;
dst[x*ncmpts] = CV_CAST_8U(pix);
}
}
else if( xstep == 2 && offset == 0 )
for( x = 0, j = 0; x < xend - xstart; x += 2, j++ )
{
int pix = ((pix_row[j] + delta) >> rshift) << lshift;
dst[x*ncmpts] = dst[(x+1)*ncmpts] = CV_CAST_8U(pix);
}
else
for( x = 0, j = 0; x < xend - xstart; j++ )
{
int pix = ((pix_row[j] + delta) >> rshift) << lshift;
pix = CV_CAST_8U(pix);
for( x1 = x + xstep; x < x1; x++ )
dst[x*ncmpts] = (uchar)pix;
}
y1 = y + ystep;
for( ++y; y < y1; y++, dst += step )
for( x = 0; x < xend - xstart; x++ )
dst[x*ncmpts + step] = dst[x*ncmpts];
}
return true;
}
bool GrFmtJpeg2000Reader::ReadComponent16u( unsigned short *data, jas_matrix_t *buffer,
int step, int cmpt,
int maxval, int offset, int ncmpts )
{
int xstart = jas_image_cmpttlx( m_image, cmpt );
int xend = jas_image_cmptbrx( m_image, cmpt );
int xstep = jas_image_cmpthstep( m_image, cmpt );
int xoffset = jas_image_tlx( m_image );
int ystart = jas_image_cmpttly( m_image, cmpt );
int yend = jas_image_cmptbry( m_image, cmpt );
int ystep = jas_image_cmptvstep( m_image, cmpt );
int yoffset = jas_image_tly( m_image );
int x, y, x1, y1, j;
int rshift = cvRound(log(maxval/65536.)/log(2.));
int lshift = MAX(0, -rshift);
rshift = MAX(0, rshift);
int delta = (rshift > 0 ? 1 << (rshift - 1) : 0) + offset;
for( y = 0; y < yend - ystart; )
{
jas_seqent_t* pix_row = &jas_matrix_get( buffer, y / ystep, 0 );
ushort* dst = data + (y - yoffset) * step - xoffset;
if( xstep == 1 )
{
if( maxval == 65536 && offset == 0 )
for( x = 0; x < xend - xstart; x++ )
{
int pix = pix_row[x];
dst[x*ncmpts] = CV_CAST_16U(pix);
}
else
for( x = 0; x < xend - xstart; x++ )
{
int pix = ((pix_row[x] + delta) >> rshift) << lshift;
dst[x*ncmpts] = CV_CAST_16U(pix);
}
}
else if( xstep == 2 && offset == 0 )
for( x = 0, j = 0; x < xend - xstart; x += 2, j++ )
{
int pix = ((pix_row[j] + delta) >> rshift) << lshift;
dst[x*ncmpts] = dst[(x+1)*ncmpts] = CV_CAST_16U(pix);
}
else
for( x = 0, j = 0; x < xend - xstart; j++ )
{
int pix = ((pix_row[j] + delta) >> rshift) << lshift;
pix = CV_CAST_16U(pix);
for( x1 = x + xstep; x < x1; x++ )
dst[x*ncmpts] = (ushort)pix;
}
y1 = y + ystep;
for( ++y; y < y1; y++, dst += step )
for( x = 0; x < xend - xstart; x++ )
dst[x*ncmpts + step] = dst[x*ncmpts];
}
return true;
}
/////////////////////// GrFmtJpeg2000Writer ///////////////////
GrFmtJpeg2000Writer::GrFmtJpeg2000Writer( const char* filename ) : GrFmtWriter( filename )
{
}
GrFmtJpeg2000Writer::~GrFmtJpeg2000Writer()
{
}
bool GrFmtJpeg2000Writer::IsFormatSupported( int depth )
{
return depth == IPL_DEPTH_8U || depth == IPL_DEPTH_16U;
}
bool GrFmtJpeg2000Writer::WriteImage( const uchar* data, int step,
int width, int height, int depth, int channels )
{
if( channels > 3 || channels < 1 )
return false;
jas_image_cmptparm_t component_info[3];
for( int i = 0; i < channels; i++ )
{
component_info[i].tlx = 0;
component_info[i].tly = 0;
component_info[i].hstep = 1;
component_info[i].vstep = 1;
component_info[i].width = width;
component_info[i].height = height;
component_info[i].prec = depth;
component_info[i].sgnd = 0;
}
jas_image_t *img = jas_image_create( channels, component_info, (channels == 1) ? JAS_CLRSPC_SGRAY : JAS_CLRSPC_SRGB );
if( !img )
return false;
if(channels == 1)
jas_image_setcmpttype( img, 0, JAS_IMAGE_CT_GRAY_Y );
else
{
jas_image_setcmpttype( img, 0, JAS_IMAGE_CT_RGB_B );
jas_image_setcmpttype( img, 1, JAS_IMAGE_CT_RGB_G );
jas_image_setcmpttype( img, 2, JAS_IMAGE_CT_RGB_R );
}
bool result;
if( depth == 8 )
result = WriteComponent8u( img, data, step, channels, width, height );
else
result = WriteComponent16u( img, (const unsigned short *)data, step / 2, channels, width, height );
if( result )
{
jas_stream_t *stream = jas_stream_fopen( m_filename, "wb" );
if( stream )
{
result = !jas_image_encode( img, stream, jas_image_strtofmt( "jp2" ), "" );
jas_stream_close( stream );
}
}
jas_image_destroy( img );
return result;
}
bool GrFmtJpeg2000Writer::WriteComponent8u( jas_image_t *img, const uchar *data,
int step, int ncmpts, int w, int h )
{
jas_matrix_t *row = jas_matrix_create( 1, w );
if(!row)
return false;
for( int y = 0; y < h; y++, data += step )
{
for( int i = 0; i < ncmpts; i++ )
{
for( int x = 0; x < w; x++)
jas_matrix_setv( row, x, data[x * ncmpts + i] );
jas_image_writecmpt( img, i, 0, y, w, 1, row );
}
}
jas_matrix_destroy( row );
return true;
}
bool GrFmtJpeg2000Writer::WriteComponent16u( jas_image_t *img, const unsigned short *data,
int step, int ncmpts, int w, int h )
{
jas_matrix_t *row = jas_matrix_create( 1, w );
if(!row)
return false;
for( int y = 0; y < h; y++, data += step )
{
for( int i = 0; i < ncmpts; i++ )
{
for( int x = 0; x < w; x++)
jas_matrix_setv( row, x, data[x * ncmpts + i] );
jas_image_writecmpt( img, i, 0, y, w, 1, row );
}
}
jas_matrix_destroy( row );
return true;
}
#endif
/* End of file. */