73d01dd659
Fix vsnprintf() implementation to properly handle long and long long ints. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5845 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
//
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// "$Id$"
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//
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// FLTK images library core.
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//
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// Copyright 1997-2005 by Easy Software Products.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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// Contents:
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//
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// fl_register_images() - Register the image formats.
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// fl_check_images() - Check for a supported image format.
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//
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//
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// Include necessary header files...
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//
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#include <FL/Fl_Shared_Image.H>
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#include <FL/Fl_BMP_Image.H>
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#include <FL/Fl_GIF_Image.H>
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#include <FL/Fl_JPEG_Image.H>
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#include <FL/Fl_PNG_Image.H>
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#include <FL/Fl_PNM_Image.H>
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#include <stdio.h>
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#include <stdlib.h>
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#include "flstring.h"
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//
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// Define a simple global image registration function that registers
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// the extra image formats that aren't part of the core FLTK library.
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//
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static Fl_Image *fl_check_images(const char *name, uchar *header, int headerlen);
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//
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// 'fl_register_images()' - Register the image formats.
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//
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void fl_register_images() {
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Fl_Shared_Image::add_handler(fl_check_images);
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}
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//
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// 'fl_check_images()' - Check for a supported image format.
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//
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Fl_Image * // O - Image, if found
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fl_check_images(const char *name, // I - Filename
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uchar *header, // I - Header data from file
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int) { // I - Amount of data (not used)
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if (memcmp(header, "GIF87a", 6) == 0 ||
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memcmp(header, "GIF89a", 6) == 0) // GIF file
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return new Fl_GIF_Image(name);
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if (memcmp(header, "BM", 2) == 0) // BMP file
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return new Fl_BMP_Image(name);
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if (header[0] == 'P' && header[1] >= '1' && header[1] <= '7')
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// Portable anymap
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return new Fl_PNM_Image(name);
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#ifdef HAVE_LIBPNG
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if (memcmp(header, "\211PNG", 4) == 0)// PNG file
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return new Fl_PNG_Image(name);
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#endif // HAVE_LIBPNG
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#ifdef HAVE_LIBJPEG
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if (memcmp(header, "\377\330\377", 3) == 0 &&
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// Start-of-Image
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header[3] >= 0xc0 && header[3] <= 0xef)
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// APPn for JPEG file
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return new Fl_JPEG_Image(name);
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#endif // HAVE_LIBJPEG
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return 0;
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}
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//
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// End of "$Id$".
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//
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