You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
272 lines
7.5 KiB
272 lines
7.5 KiB
/* ============================================================
|
|
*
|
|
* This file is a part of kipi-plugins project
|
|
* http://www.kipi-plugins.org
|
|
*
|
|
* Date : 2003-10-14
|
|
* Description : batch images grayscale conversion
|
|
*
|
|
* Copyright (C) 2004-2007 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
|
|
* Copyright (C) 2003-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
|
|
*
|
|
* NOTE: Do not use kdDebug() in this implementation because
|
|
* it will be multithreaded. Use tqDebug() instead.
|
|
* See B.K.O #133026 for details.
|
|
*
|
|
* This program is free software; you can redistribute it
|
|
* and/or modify it under the terms of the GNU General
|
|
* Public License as published by the Free Software Foundation;
|
|
* either version 2, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* ============================================================ */
|
|
|
|
#define XMD_H
|
|
|
|
// C++ includes.
|
|
|
|
#include <cstdio>
|
|
|
|
// C Ansi includes.
|
|
|
|
extern "C"
|
|
{
|
|
#include <sys/types.h>
|
|
#include <unistd.h>
|
|
#include <jpeglib.h>
|
|
}
|
|
|
|
// TQt includes.
|
|
|
|
#include <tqimage.h>
|
|
#include <tqstring.h>
|
|
#include <tqwmatrix.h>
|
|
#include <tqfile.h>
|
|
#include <tqfileinfo.h>
|
|
|
|
// KDE includes.
|
|
|
|
#include <kprocess.h>
|
|
#include <tdelocale.h>
|
|
#include <kurl.h>
|
|
#include <tdetempfile.h>
|
|
|
|
// Local includes.
|
|
|
|
#include "utils.h"
|
|
#include "transupp.h"
|
|
#include "convert2grayscale.h"
|
|
#include "convert2grayscale.moc"
|
|
|
|
namespace KIPIJPEGLossLessPlugin
|
|
{
|
|
|
|
ImageGrayScale::ImageGrayScale()
|
|
: TQObject()
|
|
{
|
|
m_tmpFile = new KTempFile(TQString(), TQString("kipiplugin-grayscale"));
|
|
m_tmpFile->setAutoDelete(true);
|
|
}
|
|
|
|
ImageGrayScale::~ImageGrayScale()
|
|
{
|
|
delete m_tmpFile;
|
|
}
|
|
|
|
bool ImageGrayScale::image2GrayScale(const TQString& src, TQString& err)
|
|
{
|
|
TQFileInfo fi(src);
|
|
|
|
if (!fi.exists() || !fi.isReadable() || !fi.isWritable())
|
|
{
|
|
err = i18n("Error in opening input file");
|
|
return false;
|
|
}
|
|
|
|
if ( !m_tmpFile->file() )
|
|
{
|
|
err = i18n("Error in opening temporary file");
|
|
return false;
|
|
}
|
|
|
|
TQString tmp = m_tmpFile->name();
|
|
|
|
if (Utils::isRAW(src))
|
|
{
|
|
err = i18n("Cannot convert to gray scale RAW file");
|
|
return false;
|
|
}
|
|
else if (Utils::isJPEG(src))
|
|
{
|
|
if (!image2GrayScaleJPEG(src, tmp, err))
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
// B.K.O #123499 : using Image Magick API here instead QT API
|
|
// else RAW/TIFF/PNG 16 bits image are broken!
|
|
if (!image2GrayScaleImageMagick(src, tmp, err))
|
|
return false;
|
|
|
|
// We update metadata on new image.
|
|
Utils tools(this);
|
|
if (!tools.updateMetadataImageMagick(tmp, err))
|
|
return false;
|
|
}
|
|
|
|
// Move back to original file
|
|
if (!Utils::MoveFile(tmp, src))
|
|
{
|
|
err = i18n("Cannot update source image");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ImageGrayScale::image2GrayScaleJPEG(const TQString& src, const TQString& dest, TQString& err)
|
|
{
|
|
JCOPY_OPTION copyoption = JCOPYOPT_ALL;
|
|
jpeg_transform_info transformoption;
|
|
memset(&transformoption, 0, sizeof(jpeg_transform_info));
|
|
|
|
transformoption.transform = JXFORM_NONE;
|
|
transformoption.force_grayscale = true;
|
|
transformoption.trim = false;
|
|
|
|
struct jpeg_decompress_struct srcinfo;
|
|
struct jpeg_compress_struct dstinfo;
|
|
struct jpeg_error_mgr jsrcerr;
|
|
struct jpeg_error_mgr jdsterr;
|
|
jvirt_barray_ptr * src_coef_arrays;
|
|
jvirt_barray_ptr * dst_coef_arrays;
|
|
|
|
// Initialize the JPEG decompression object with default error handling
|
|
srcinfo.err = jpeg_std_error(&jsrcerr);
|
|
jpeg_create_decompress(&srcinfo);
|
|
|
|
// Initialize the JPEG compression object with default error handling
|
|
dstinfo.err = jpeg_std_error(&jdsterr);
|
|
jpeg_create_compress(&dstinfo);
|
|
|
|
FILE *input_file;
|
|
FILE *output_file;
|
|
|
|
input_file = fopen(TQFile::encodeName(src), "rb");
|
|
if (!input_file)
|
|
{
|
|
tqDebug("Image2GrayScale: Error in opening input file");
|
|
err = i18n("Error in opening input file");
|
|
return false;
|
|
}
|
|
|
|
output_file = fopen(TQFile::encodeName(dest), "wb");
|
|
if (!output_file)
|
|
{
|
|
fclose(input_file);
|
|
tqDebug("Image2GrayScale: Error in opening output file");
|
|
err = i18n("Error in opening output file");
|
|
return false;
|
|
}
|
|
|
|
// Open jpeglib stream
|
|
jpeg_stdio_src(&srcinfo, input_file);
|
|
|
|
// Setup decompression object to save desired markers in memory
|
|
jcopy_markers_setup(&srcinfo, copyoption);
|
|
|
|
// Decompression startup: read start of JPEG datastream to see what's there
|
|
(void) jpeg_read_header(&srcinfo, true);
|
|
|
|
// Request any required workspace
|
|
jtransform_request_workspace(&srcinfo, &transformoption);
|
|
|
|
// Read source file as DCT coefficients
|
|
src_coef_arrays = jpeg_read_coefficients(&srcinfo);
|
|
|
|
// Initialize destination compression parameters from source values
|
|
jpeg_copy_critical_parameters(&srcinfo, &dstinfo);
|
|
|
|
// Adjust output image parameters
|
|
dst_coef_arrays = jtransform_adjust_parameters(&srcinfo, &dstinfo, src_coef_arrays, &transformoption);
|
|
|
|
// Specify data destination for compression
|
|
jpeg_stdio_dest(&dstinfo, output_file);
|
|
|
|
// Do not write a JFIF header if previously the image did not contain it
|
|
dstinfo.write_JFIF_header = false;
|
|
|
|
// Start compressor (note no image data is actually written here)
|
|
jpeg_write_coefficients(&dstinfo, dst_coef_arrays);
|
|
|
|
// Copy to the output file any extra markers that we want to preserve (merging from src file with TQt tmp file)
|
|
jcopy_markers_execute(&srcinfo, &dstinfo, copyoption);
|
|
|
|
// Execute the actual jpeg transformations
|
|
jtransform_execute_transformation(&srcinfo, &dstinfo, src_coef_arrays, &transformoption);
|
|
|
|
// Finish compression and release memory
|
|
jpeg_finish_compress(&dstinfo);
|
|
jpeg_destroy_compress(&dstinfo);
|
|
(void) jpeg_finish_decompress(&srcinfo);
|
|
jpeg_destroy_decompress(&srcinfo);
|
|
|
|
fclose(input_file);
|
|
fclose(output_file);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ImageGrayScale::image2GrayScaleImageMagick(const TQString& src, const TQString& dest, TQString& err)
|
|
{
|
|
TDEProcess process;
|
|
process.clearArguments();
|
|
process << "convert";
|
|
process << "-verbose";
|
|
process << "-type" << "Grayscale";
|
|
process << src + TQString("[0]") << dest;
|
|
|
|
tqDebug("ImageMagick Command line args:");
|
|
TQValueList<TQCString> args = process.args();
|
|
for (TQValueList<TQCString>::iterator it = args.begin(); it != args.end(); ++it)
|
|
tqDebug("%s", (const char*)(*it));
|
|
|
|
connect(&process, TQT_SIGNAL(receivedStderr(TDEProcess *, char*, int)),
|
|
this, TQT_SLOT(slotReadStderr(TDEProcess*, char*, int)));
|
|
|
|
if (!process.start(TDEProcess::Block, TDEProcess::Stderr))
|
|
return false;
|
|
|
|
if (!process.normalExit())
|
|
return false;
|
|
|
|
switch (process.exitStatus())
|
|
{
|
|
case 0: // Process finished successfully !
|
|
{
|
|
return true;
|
|
break;
|
|
}
|
|
case 15: // process aborted !
|
|
{
|
|
return false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Processing error !
|
|
err = i18n("Cannot convert to gray scale: %1").arg(m_stdErr.replace('\n', ' '));
|
|
return false;
|
|
}
|
|
|
|
void ImageGrayScale::slotReadStderr(TDEProcess*, char* buffer, int buflen)
|
|
{
|
|
m_stdErr.append(TQString::fromLocal8Bit(buffer, buflen));
|
|
}
|
|
|
|
} // NameSpace KIPIJPEGLossLessPlugin
|