A simple java RGBA gamma-correct mipmap creator. Reads in a level 0 RGBA png file, averages the components in a gammma-correct manner and outputs RGBA PNG mipmaps for levels [1,n]. Gamma is currently hard-coded to 2.2, but that is simple enough to change below. Output filenames are suffixed with "_1", "_2", etc. Handles the non-square image case and should also handle non-pow-2
I'm moving this code from https://bitbucket.org/rallen/rajmipmap to here.
> javac rajmipmap.java
> java rajmipmap granite.png
make_mipmaps: granite.png
creating granite_1.png width=128 height=128
creating granite_2.png width=64 height=64
creating granite_3.png width=32 height=32
creating granite_4.png width=16 height=16
creating granite_5.png width=8 height=8
creating granite_6.png width=4 height=4
creating granite_7.png width=2 height=2
creating granite_8.png width=1 height=1Copyright (c) 2011 Roger Allen
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 3 of the License, 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.