COPYRIGHT: Update with recent additions, cleanup

Also include public domain assets in `COPYRIGHT.txt` with Unlicence text or
dual-licensing scheme.

And document commit hashes for most thirdparty code in `thirdparty/README.md`
for clarity, and in case there's no tag matching the included version numbers.

1 files changed, 212 insertions, 36 deletions

diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt
index 46b044a7a5..9ccc493cef 100644
--- a/COPYRIGHT.txt
+++ b/COPYRIGHT.txt
@@ -55,12 +55,19 @@ Comment: Godot Engine logo
 Copyright: 2017, Andrea Calabró
 License: CC-BY-4.0
 
-Files: ./platform/android/java/aidl/com/android/vending/billing/IInAppBillingService.aidl
- ./platform/android/java/res/layout/status_bar_ongoing_event_progress_bar.xml
- ./platform/android/java/src/com/google/android/vending/expansion/downloader/*
- ./platform/android/java/src/com/google/android/vending/licensing/*
- ./platform/android/java/src/org/godotengine/godot/input/InputManagerCompat.java
- ./platform/android/java/src/org/godotengine/godot/input/InputManagerV16.java
+Files: ./modules/fbx/fbx_parser/
+Comment: Open Asset Import Library (FBX parser)
+Copyright: 2006-2020, assimp team
+ 2007-2021, Juan Linietsky, Ariel Manzur.
+ 2014-2021, Godot Engine contributors.
+License: BSD-3-clause
+
+Files: ./platform/android/java/lib/aidl/com/android/vending/licensing/
+ ./platform/android/java/lib/res/layout/status_bar_ongoing_event_progress_bar.xml
+ ./platform/android/java/lib/src/com/google/android/vending/expansion/downloader/
+ ./platform/android/java/lib/src/com/google/android/vending/licensing/
+ ./platform/android/java/lib/src/org/godotengine/godot/input/InputManagerCompat.java
+ ./platform/android/java/lib/src/org/godotengine/godot/input/InputManagerV16.java
 Comment: The Android Open Source Project
 Copyright: 2008-2013, The Android Open Source Project
 License: Apache-2.0
@@ -71,11 +78,6 @@ Comment: The Android Open Source Project
 Copyright: 2002, Google Inc.
 License: Apache-2.0
 
-Files: ./scene/animation/tween_interpolaters.cpp
-Comment: Penner Easing
-Copyright: 2001, Robert Penner
-License: BSD-3-clause
-
 Files: ./servers/physics/gjk_epa.cpp
  ./servers/physics/joints/generic_6dof_joint_sw.cpp
  ./servers/physics/joints/generic_6dof_joint_sw.h
@@ -100,11 +102,6 @@ Copyright: 2007, Starbreeze Studios
  2014-2021, Godot Engine contributors.
 License: Expat and Zlib
 
-Files: ./thirdparty/assimp/
-Comment: Open Asset Import Library (assimp)
-Copyright: 2006-2016, assimp team
-License: BSD-3-clause
-
 Files: ./thirdparty/basis_universal/
 Comment: Basis Universal
 Copyright: 2019, Binomial LLC.
@@ -169,7 +166,7 @@ License: FTL
 
 Files: ./thirdparty/glslang/
 Comment: glslang
-Copyright: 2015-2020 Google, Inc.
+Copyright: 2015-2020, Google, Inc.
   2014-2020, The Khronos Group Inc
   2002, NVIDIA Corporation.
 License: glslang
@@ -181,19 +178,19 @@ License: MPL-2.0
 
 Files: ./thirdparty/harfbuzz/
 Comment: HarfBuzz text shaping library
-Copyright: 2010,2011,2012,2013,2014,2015,2016,2017,2018,2019,2020 Google, Inc.
- 2018,2019,2020 Ebrahim Byagowi
- 2019,2020 Facebook, Inc.
- 2012 Mozilla Foundation
- 2011 Codethink Limited
- 2008,2010 Nokia Corporation and/or its subsidiary(-ies)
- 2009 Keith Stribley
- 2009 Martin Hosken and SIL International
- 2007 Chris Wilson
- 2006 Behdad Esfahbod
- 2005 David Turner
- 2004,2007,2008,2009,2010 Red Hat, Inc.
- 1998-2004 David Turner and Werner Lemberg
+Copyright: 2010-2020, Google, Inc.
+ 2018-2020, Ebrahim Byagowi
+ 2019-2020, Facebook, Inc.
+ 2012, Mozilla Foundation
+ 2011, Codethink Limited
+ 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
+ 2009, Keith Stribley
+ 2009, Martin Hosken and SIL International
+ 2007, Chris Wilson
+ 2006, Behdad Esfahbod
+ 2005, David Turner
+ 2004, 2007-2010, Red Hat, Inc.
+ 1998-2004, David Turner and Werner Lemberg
 License: HarfBuzz
 
 Files: ./thirdparty/icu4c/
@@ -201,10 +198,10 @@ Comment: International Components for Unicode
 Copyright: 1991-2020, Unicode
 License: Unicode
 
-Files: ./thirdparty/jpeg_compressor/
+Files: ./thirdparty/jpeg-compressor/
 Comment: jpeg-compressor
 Copyright: 2012, Rich Geldreich
-License: public-domain
+License: public-domain or Apache-2.0
 
 Files: ./thirdparty/libogg/
 Comment: OggVorbis
@@ -258,12 +255,22 @@ License: BSD-3-clause
 
 Files: ./thirdparty/mbedtls/
 Comment: Mbed TLS
-Copyright: 2006-2018, Arm Limited (or its affiliates)
+Copyright: The Mbed TLS Contributors
 License: Apache-2.0
 
+Files: ./thirdparty/meshoptimizer/
+Comment: meshoptimizer
+Copyright: 2016-2020, Arseny Kapoulkine
+License: Expat
+
+Files: ./thirdparty/minimp3/
+Comment: MiniMP3
+Copyright: lieff
+License: CC0-1.0
+
 Files: ./thirdparty/miniupnpc/
 Comment: MiniUPnPc
-Copyright: 2005-2018, Thomas Bernard
+Copyright: 2005-2019, Thomas Bernard
 License: BSD-3-clause
 
 Files: ./thirdparty/minizip/
@@ -279,6 +286,11 @@ Comment: Clipper
 Copyright: 2010-2017, Angus Johnson
 License: BSL-1.0
 
+Files: ./thirdparty/misc/cubemap_coeffs.h
+Comment: Fast Filtering of Reflection Probes
+Copyright: 2016, Activision Publishing, Inc.
+License: Expat
+
 Files: ./thirdparty/misc/easing_equations.cpp
 Comment: Robert Penner's Easing Functions
 Copyright: 2001, Robert Penner
@@ -302,18 +314,36 @@ Comment: Tangent Space Normal Maps implementation
 Copyright: 2011, Morten S. Mikkelsen
 License: Zlib
 
+Files: ./thirdparty/misc/open-simplex-noise.c
+ ./thirdparty/misc/open-simplex-noise.h
+Comment: OpenSimplex Noise
+Copyright: 2014, Stephen M. Cameron
+License: public-domain or Unlicense
+
 Files: ./thirdparty/misc/pcg.cpp
  ./thirdparty/misc/pcg.h
 Comment: Minimal PCG32 implementation
 Copyright: 2014, M.E. O'Neill
 License: Apache-2.0
 
+Files: ./thirdparty/misc/r128.c
+ ./thirdparty/misc/r128.h
+Comment: r128 library
+Copyright: Alan Hickman
+License: public-domain or Unlicense
+
 Files: ./thirdparty/misc/smaz.c
  ./thirdparty/misc/smaz.h
 Comment: SMAZ
 Copyright: 2006-2009, Salvatore Sanfilippo
 License: BSD-3-clause
 
+Files: ./thirdparty/misc/stb_rect_pack.h
+ ./thirdparty/misc/stb_vorbis.c
+Comment: stb libraries
+Copyright: Sean Barrett
+License: public-domain or Unlicense or Expat
+
 Files: ./thirdparty/misc/triangulator.cpp
  ./thirdparty/misc/triangulator.h
 Comment: PolyPartition
@@ -362,7 +392,12 @@ License: Zlib
 Files: ./thirdparty/rvo2/
 Comment: RVO2
 Copyright: 2016, University of North Carolina at Chapel Hill
-License: Apache 2.0
+License: Apache-2.0
+
+Files: ./thirdparty/spirv-reflect/
+Comment: SPIRV-Reflect
+Copyright: 2017-2018, Google Inc.
+License: Apache-2.0
 
 Files: ./thirdparty/squish/
 Comment: libSquish
@@ -396,7 +431,7 @@ License: Expat
 
 Files: ./thirdparty/wslay/
 Comment: Wslay
-Copyright: 2011-2015, Tatsuhiro Tsujikawa
+Copyright: 2011, 2012, 2015, Tatsuhiro Tsujikawa
 License: Expat
 
 Files: ./thirdparty/xatlas/
@@ -548,6 +583,121 @@ License: BSL-1.0
  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  DEALINGS IN THE SOFTWARE.
 
+License: CC0-1.0
+ CC0 1.0 Universal
+ .
+ Statement of Purpose
+ .
+ The laws of most jurisdictions throughout the world automatically confer
+ exclusive Copyright and Related Rights (defined below) upon the creator and
+ subsequent owner(s) (each and all, an "owner") of an original work of
+ authorship and/or a database (each, a "Work").
+ .
+ Certain owners wish to permanently relinquish those rights to a Work for the
+ purpose of contributing to a commons of creative, cultural and scientific
+ works ("Commons") that the public can reliably and without fear of later
+ claims of infringement build upon, modify, incorporate in other works, reuse
+ and redistribute as freely as possible in any form whatsoever and for any
+ purposes, including without limitation commercial purposes. These owners may
+ contribute to the Commons to promote the ideal of a free culture and the
+ further production of creative, cultural and scientific works, or to gain
+ reputation or greater distribution for their Work in part through the use and
+ efforts of others.
+ .
+ For these and/or other purposes and motivations, and without any expectation
+ of additional consideration or compensation, the person associating CC0 with a
+ Work (the "Affirmer"), to the extent that he or she is an owner of Copyright
+ and Related Rights in the Work, voluntarily elects to apply CC0 to the Work
+ and publicly distribute the Work under its terms, with knowledge of his or her
+ Copyright and Related Rights in the Work and the meaning and intended legal
+ effect of CC0 on those rights.
+ .
+ 1. Copyright and Related Rights. A Work made available under CC0 may be
+ protected by copyright and related or neighboring rights ("Copyright and
+ Related Rights"). Copyright and Related Rights include, but are not limited
+ to, the following:
+ .
+ i. the right to reproduce, adapt, distribute, perform, display, communicate,
+ and translate a Work;
+ .
+ ii. moral rights retained by the original author(s) and/or performer(s);
+ .
+ iii. publicity and privacy rights pertaining to a person's image or likeness
+ depicted in a Work;
+ .
+ iv. rights protecting against unfair competition in regards to a Work,
+ subject to the limitations in paragraph 4(a), below;
+ .
+ v. rights protecting the extraction, dissemination, use and reuse of data in
+ a Work;
+ .
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+ European Parliament and of the Council of 11 March 1996 on the legal
+ protection of databases, and under any national implementation thereof,
+ including any amended or successor version of such directive); and
+ .
+ vii. other similar, equivalent or corresponding rights throughout the world
+ based on applicable law or treaty, and any national implementations thereof.
+ .
+ 2. Waiver. To the greatest extent permitted by, but not in contravention of,
+ applicable law, Affirmer hereby overtly, fully, permanently, irrevocably and
+ unconditionally waives, abandons, and surrenders all of Affirmer's Copyright
+ and Related Rights and associated claims and causes of action, whether now
+ known or unknown (including existing as well as future claims and causes of
+ action), in the Work (i) in all territories worldwide, (ii) for the maximum
+ duration provided by applicable law or treaty (including future time
+ extensions), (iii) in any current or future medium and for any number of
+ copies, and (iv) for any purpose whatsoever, including without limitation
+ commercial, advertising or promotional purposes (the "Waiver"). Affirmer makes
+ the Waiver for the benefit of each member of the public at large and to the
+ detriment of Affirmer's heirs and successors, fully intending that such Waiver
+ shall not be subject to revocation, rescission, cancellation, termination, or
+ any other legal or equitable action to disrupt the quiet enjoyment of the Work
+ by the public as contemplated by Affirmer's express Statement of Purpose.
+ .
+ 3. Public License Fallback. Should any part of the Waiver for any reason be
+ judged legally invalid or ineffective under applicable law, then the Waiver
+ shall be preserved to the maximum extent permitted taking into account
+ Affirmer's express Statement of Purpose. In addition, to the extent the Waiver
+ is so judged Affirmer hereby grants to each affected person a royalty-free,
+ non transferable, non sublicensable, non exclusive, irrevocable and
+ unconditional license to exercise Affirmer's Copyright and Related Rights in
+ the Work (i) in all territories worldwide, (ii) for the maximum duration
+ provided by applicable law or treaty (including future time extensions), (iii)
+ in any current or future medium and for any number of copies, and (iv) for any
+ purpose whatsoever, including without limitation commercial, advertising or
+ promotional purposes (the "License"). The License shall be deemed effective as
+ of the date CC0 was applied by Affirmer to the Work. Should any part of the
+ License for any reason be judged legally invalid or ineffective under
+ applicable law, such partial invalidity or ineffectiveness shall not
+ invalidate the remainder of the License, and in such case Affirmer hereby
+ affirms that he or she will not (i) exercise any of his or her remaining
+ Copyright and Related Rights in the Work or (ii) assert any associated claims
+ and causes of action with respect to the Work, in either case contrary to
+ Affirmer's express Statement of Purpose.
+ .
+ 4. Limitations and Disclaimers.
+ .
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+ surrendered, licensed or otherwise affected by this document.
+ .
+ b. Affirmer offers the Work as-is and makes no representations or warranties
+ of any kind concerning the Work, express, implied, statutory or otherwise,
+ including without limitation warranties of title, merchantability, fitness
+ for a particular purpose, non infringement, or the absence of latent or
+ other defects, accuracy, or the present or absence of errors, whether or not
+ discoverable, all to the greatest extent permissible under applicable law.
+ .
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+ that may apply to the Work or any use thereof, including without limitation
+ any person's Copyright and Related Rights in the Work. Further, Affirmer
+ disclaims responsibility for obtaining any necessary consents, permissions
+ or other rights required for any use of the Work.
+ .
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+ party to this document and has no duty or obligation with respect to this
+ CC0 or use of the Work.
+
 License: CC-BY-4.0
  Creative Commons Attribution 4.0 International Public License
  .
@@ -1729,6 +1879,32 @@ License: Unicode
  use or other dealings in these Data Files or Software without prior
  written authorization of the copyright holder.
 
+License: Unlicense
+ This is free and unencumbered software released into the public domain.
+ .
+ Anyone is free to copy, modify, publish, use, compile, sell, or
+ distribute this software, either in source code form or as a compiled
+ binary, for any purpose, commercial or non-commercial, and by any
+ means.
+ .
+ In jurisdictions that recognize copyright laws, the author or authors
+ of this software dedicate any and all copyright interest in the
+ software to the public domain. We make this dedication for the benefit
+ of the public at large and to the detriment of our heirs and
+ successors. We intend this dedication to be an overt act of
+ relinquishment in perpetuity of all present and future rights to this
+ software under copyright law.
+ .
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ OTHER DEALINGS IN THE SOFTWARE.
+ .
+ For more information, please refer to <https://unlicense.org/>
+
 License: Zlib
  This software is provided 'as-is', without any express or implied
  warranty.  In no event will the authors be held liable for any damages