File indexing completed on 2024-05-12 04:33:19

 /*
     SPDX-FileCopyrightText: 2009-2010 Patrick Spendrin <ps_ml@gmx.de>
     SPDX-FileCopyrightText: 2007-2018 Gilles Caulier <caulier dot gilles at gmail dot com>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef KIPIWRITEHELP_H
 #define KIPIWRITEHELP_H
 
 // C++ includes
 
 #include <cstdio>
 
 // Qt includes
 
 #include <QIODevice>
 
 // C ANSI includes
 
 extern "C"
 {
 #include <jpeglib.h>
 #include <png.h>
 }
 
 namespace KXMLKipiCmd
 {
 
 /**
   * a replacement function for jpeg_stdio_dest
   * for convenience reasons, it uses a QIODevice instead of a QFile, but the main advantage is to not give over
   * a FILE* pointer on Windows which can break due to different MS C Runtime libraries.
   *
   * Prepare for output to a QIODevice.
   * The caller must have already opened the device, and is responsible
   * for closing it after finishing compression.
   */
 void kipi_jpeg_qiodevice_dest(j_compress_ptr cinfo, QIODevice* const outfile);
 
 /**
   * a replacement function for jpeg_stdio_src
   * for convenience reasons, it uses a QIODevice instead of a QFile, but the main advantage is to not give over
   * a FILE* pointer on Windows which can break due to different MS C Runtime libraries.
   *
   * Prepare for input from a QIODevice.
   * The caller must have already opened the device, and is responsible
   * for closing it after finishing reading.
   */
 void kipi_jpeg_qiodevice_src(j_decompress_ptr cinfo, QIODevice* const infile);
 
 /**
   * a callback function for writing a png image
   */
 void kipi_png_write_fn(png_structp png_ptr, png_bytep data, png_size_t length);
 
 /**
   * a callback function for flushing the buffers, currently unused, since no buffering happens
   */
 void kipi_png_flush_fn(png_structp png_ptr);
 
 /**
  * To manage Errors/Warnings handling provide by libtiff
  */
 void kipi_tiff_warning(const char* module, const char* format, va_list warnings);
 void kipi_tiff_error(const char* module, const char* format, va_list errors);
 
 }  // namespace KXMLKipiCmd
 
 #endif // KIPIWRITEHELP_H