View of /tags/release-2.0.3/mipmap.h

    1 /*
    2    DDS GIMP plugin
    3 
    4    Copyright (C) 2004-2008 Shawn Kirst <skirst@insightbb.com>,
    5    with parts (C) 2003 Arne Reuter <homepage@arnereuter.de> where specified.
    6 
    7    This program is free software; you can redistribute it and/or
    8    modify it under the terms of the GNU General Public
    9    License as published by the Free Software Foundation; either
   10    version 2 of the License, or (at your option) any later version.
   11 
   12    This program is distributed in the hope that it will be useful,
   13    but WITHOUT ANY WARRANTY; without even the implied warranty of
   14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   15    General Public License for more details.
   16 
   17    You should have received a copy of the GNU General Public License
   18    along with this program; see the file COPYING.  If not, write to
   19    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   20    Boston, MA 02111-1307, USA.
   21 */
   22 
   23 #ifndef MIPMAP_H
   24 #define MIPMAP_H
   25 
   26 #define IS_POT(x)      (!((x) & ((x) - 1)))
   27 
   28 int get_num_mipmaps(int width, int height);
   29 unsigned int get_mipmapped_size(int width, int height, int bpp,
   30                                 int level, int num, int format);
   31 unsigned int get_volume_mipmapped_size(int width, int height,
   32                                        int depth, int bpp, int level,
   33                                        int num, int format);
   34 float cubic_interpolate(float a, float b, float c, float d, float x);
   35 int generate_mipmaps(unsigned char *dst, unsigned char *src,
   36                      unsigned int width, unsigned int height, int bpp,
   37                      int indexed, int mipmaps);
   38 int generate_volume_mipmaps(unsigned char *dst, unsigned char *src,
   39                             unsigned int width, unsigned int height,
   40                             unsigned int depth, int bpp, int indexed,
   41                             int mipmaps);
   42 
   43 #endif