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Diffstat (limited to 'src/Fl_JPEG_Image.cxx')
| -rw-r--r-- | src/Fl_JPEG_Image.cxx | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/Fl_JPEG_Image.cxx b/src/Fl_JPEG_Image.cxx new file mode 100644 index 000000000..0c38b4709 --- /dev/null +++ b/src/Fl_JPEG_Image.cxx @@ -0,0 +1,126 @@ +// +// "$Id: Fl_JPEG_Image.cxx,v 1.1.2.1 2001/11/19 01:06:45 easysw Exp $" +// +// Fl_JPEG_Image routines. +// +// Copyright 1997-2001 by Easy Software Products. +// Image support donated by Matthias Melcher, Copyright 2000. +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Library General Public +// License as published by the Free Software Foundation; either +// version 2 of the License, or (at your option) any later version. +// +// This library 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 +// Library General Public License for more details. +// +// You should have received a copy of the GNU Library General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +// USA. +// +// Please report all bugs and problems to "fltk-bugs@fltk.org". +// +// Contents: +// +// + +// +// Include necessary header files... +// + +#include <FL/Fl_JPEG_Image.H> +#include "config.h" +#include <stdio.h> +#include <stdlib.h> +#include <ctype.h> +#include <string.h> +#ifdef HAVE_STRINGS_H +# include <strings.h> +#endif /* HAVE_STRINGS_H */ +#include <errno.h> + +#if defined(WIN32) && ! defined(__CYGWIN__) +# include <io.h> +# include <direct.h> +# define strcasecmp(s,t) stricmp((s), (t)) +# define strncasecmp(s,t,n) strnicmp((s), (t), (n)) +#elif defined(__EMX__) +# define strcasecmp(s,t) stricmp((s), (t)) +# define strncasecmp(s,t,n) strnicmp((s), (t), (n)) +#else +# include <unistd.h> +#endif // WIN32 + +extern "C" +{ +#ifdef HAVE_LIBJPEG +# include <jpeglib.h> +#endif // HAVE_LIBJPEG +} + +#define MAX_COLUMNS 200 + + +#if 0 +#ifdef HAVE_LIBJPEG +// +// 'Fl_Help_View::load_jpeg()' - Load a JPEG image file. +// + +int // O - 0 = success, -1 = fail +Fl_Help_View::load_jpeg(Fl_Help_Image *img, // I - Image pointer + FILE *fp) // I - File to load from +{ + struct jpeg_decompress_struct cinfo; // Decompressor info + struct jpeg_error_mgr jerr; // Error handler info + JSAMPROW row; // Sample row pointer + + + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_decompress(&cinfo); + jpeg_stdio_src(&cinfo, fp); + jpeg_read_header(&cinfo, 1); + + cinfo.quantize_colors = 0; + cinfo.out_color_space = JCS_RGB; + cinfo.out_color_components = 3; + cinfo.output_components = 3; + + jpeg_calc_output_dimensions(&cinfo); + + img->w = cinfo.output_width; + img->h = cinfo.output_height; + img->d = cinfo.output_components; + img->data = (unsigned char *)malloc(img->w * img->h * img->d); + + if (img->data == NULL) + { + jpeg_destroy_decompress(&cinfo); + return (0); + } + + jpeg_start_decompress(&cinfo); + + while (cinfo.output_scanline < cinfo.output_height) + { + row = (JSAMPROW)(img->data + + cinfo.output_scanline * cinfo.output_width * + cinfo.output_components); + jpeg_read_scanlines(&cinfo, &row, (JDIMENSION)1); + } + + jpeg_finish_decompress(&cinfo); + jpeg_destroy_decompress(&cinfo); + + return (1); +} +#endif // HAVE_LIBJPEG + +#endif // 0 + +// +// End of "$Id: Fl_JPEG_Image.cxx,v 1.1.2.1 2001/11/19 01:06:45 easysw Exp $". +// |