2016-09-02 08:48:38 +00:00
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The original Doom source code was released by id Software under the
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2017-04-17 08:24:24 +00:00
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GPL v2, but has been relicensed under the GPL v3 for GZDoom.
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See gpl.txt
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2016-09-02 08:48:38 +00:00
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2017-01-15 11:17:48 +00:00
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Parts of the voxel code in the software renderer use code from the
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2017-04-17 08:24:24 +00:00
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BUILD engine by Ken Silverman and are used under the terms of the
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GPL v3 with permission.
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2016-09-02 08:48:38 +00:00
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The majority of original code uses a BSD-like lincese. See bsd.txt.
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2017-01-15 11:17:48 +00:00
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The OpenGL renderer is released under the LGPL v3, except some bits
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2022-09-18 15:37:15 +00:00
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of code that were inherited from ZDoomGL.
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2017-01-15 11:17:48 +00:00
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2019-08-21 19:31:12 +00:00
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Some code was taken from the Eternity Engine.
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Copyright (c) James Haley, Stephen McGranahan, et al.
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2016-09-02 08:48:38 +00:00
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This software is based in part on the work of the Independent JPEG Group.
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This software uses the 'zlib' general purpose compression library by
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Jean-loup Gailly and Mark Adler.
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This software uses the gdtoa package, see gdtoa.txt.
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2017-04-17 08:24:24 +00:00
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This software uses the game_music_emu library, which is covered by the GNU Lesser
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2016-09-02 08:48:38 +00:00
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General Public License. See lgpl.txt.
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This software uses the "Dynamic Universal Music Bibliotheque" library for
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MOD music playback. See dumb.txt for original license. The version used,
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however, has been heavily modified from its original form and is the same
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version used by the foobar2000 component foo_dumb as of mid-2008, found at
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http://kode54.foobar2000.org/.
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2017-04-17 08:24:24 +00:00
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All script code in gzdoom.pk3 is licensed under the GPL v3 unless noted
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2022-09-18 15:37:15 +00:00
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otherwise.
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