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virtualx-engine/thirdparty/README.md
Rémi Verschelde 82f2674e8d Move Penner easing equations to thirdparty/misc 
It was Godot-ified and integrated into Tween originally (#628)
without mention that it was thirdparty code, but it's actually
derived from https://github.com/jesusgollonet/ofpennereasing.

It's also very bad quality code and should be replaced by a better,
properly-maintained library of easing equations.
2018-09-28 16:01:26 +02:00

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# Third party libraries
## b2d_convexdecomp
- Upstream: https://github.com/erincatto/Box2D/tree/master/Contributions/Utilities/ConvexDecomposition
- Version: git (25615e0, 2015) with modifications
- License: zlib
The files were adapted to Godot by removing the dependency on b2Math (replacing
it by b2Glue.h) and commenting out some verbose printf calls.
Upstream code has not changed in 10 years, no need to keep track of changes.
Important: Some files have Godot-made changes.
They are marked with `// -- GODOT start --` and `// -- GODOT end --`
comments.
## bullet
- Upstream: https://github.com/bulletphysics/bullet3
- Version: git (12409f1118a7c7a266f9071350c70789dfe73bb9, Commits on Sep 6, 2018 )
- License: zlib
Files extracted from upstream source:
- src/* apart from CMakeLists.txt and premake4.lua files
- LICENSE.txt
## certs
- Upstream: Mozilla, via https://apps.fedoraproject.org/packages/ca-certificates
- Version: 2018.2.22
- License: MPL 2.0
File extracted from a recent Fedora install:
/etc/pki/ca-trust/extracted/pem/tls-ca-bundle.pem
(It can't be extracted directly from the package,
as it's generated on the user's system.)
## cvtt
- Upstream: https://github.com/elasota/cvtt
- Version: 1.0.0-beta4
- License: MIT
Files extracted from upstream source:
- all .cpp, .h, and .txt files in ConvectionKernels/
## enet
- Upstream: http://enet.bespin.org
- Version: 1.3.13
- License: MIT
Files extracted from upstream source:
- all .c files in the main directory (except unix.c win32.c)
- the include/enet/ folder as enet/ (except unix.h win32.h)
- LICENSE file
Important: enet.h, host.c, protocol.c have been slightly modified
to be usable by godot socket implementation and allow IPv6.
Two files (godot.cpp and enet/godot.h) have been added to provide
enet socket implementation using Godot classes.
It is still possible to build against a system wide ENet but doing so
will limit it's functionality to IPv4 only.
Check the diff of enet.h, protocol.c, and host.c with the 1.3.13
tarball before the next update.
## etc2comp
- Upstream: https://github.com/google/etc2comp
- Version: git (9cd0f9c, 2017)
- License: Apache 2.0
Files extracted from upstream source:
- all .cpp and .h files in EtcLib/
- README.md, LICENSE, AUTHORS
Important: Some files have Godot-made changes.
They are marked with `// -- GODOT start --` and `// -- GODOT end --`
comments.
## fonts
### Noto Sans
- Upstream: https://github.com/googlei18n/noto-fonts
- Version: 1.06
- License: OFL-1.1
Use UI font variant if available, because it has tight vertical metrics and good for UI.
### Hack Regular
- Upstream: https://github.com/source-foundry/Hack
- Version: 3.003
- License: MIT + Bitstream Vera License
### DroidSans*.ttf
- Upstream: https://android.googlesource.com/platform/frameworks/base/+/master/data/fonts/
- Version: ? (pre-2014 commit when DroidSansJapanese.ttf was obsoleted)
- License: Apache 2.0
## freetype
- Upstream: https://www.freetype.org
- Version: 2.9.1
- License: FreeType License (BSD-like)
Files extracted from upstream source:
- the src/ folder, stripped of the `Jamfile` files
- the include/ folder
- `docs/{FTL.TXT,LICENSE.TXT}`
## glad
- Upstream: https://github.com/Dav1dde/glad
- Version: 0.1.25
- License: MIT
The files we package are automatically generated.
See the header of glad.c for instructions on how to generate them for
the GLES version Godot targets.
## jpeg-compressor
- Upstream: https://github.com/richgel999/jpeg-compressor
- Version: 1.04
- License: Public domain
Files extracted from upstream source:
- `jpgd.{c,h}`
## libogg
- Upstream: https://www.xiph.org/ogg
- Version: 1.3.3
- License: BSD-3-Clause
Files extracted from upstream source:
- `src/*.c`
- `include/ogg/*.h` in ogg/
- COPYING
## libpng
- Upstream: http://libpng.org/pub/png/libpng.html
- Version: 1.6.35
- License: libpng/zlib
Files extracted from upstream source:
- all .c and .h files of the main directory, except from
`example.c` and `pngtest.c`
- the arm/ folder
- `scripts/pnglibconf.h.prebuilt` as `pnglibconf.h`
- `LICENSE`
## libsimplewebm
- Upstream: https://github.com/zaps166/libsimplewebm
- Version: git (05cfdc2, 2016)
- License: MIT, BSD-3-Clause
Files extracted from upstream source:
TODO.
Important: Some files have Godot-made changes.
They are marked with `// -- GODOT start --` and `// -- GODOT end --`
comments.
## libtheora
- Upstream: https://www.theora.org
- Version: 1.1.1
- License: BSD-3-Clause
Files extracted from upstream source:
- all .c, .h in lib/
- all .h files in include/theora/ as theora/
- COPYING and LICENSE
## libvorbis
- Upstream: https://www.xiph.org/vorbis
- Version: 1.3.6
- License: BSD-3-Clause
Files extracted from upstream source:
- `src/*` except from: `lookups.pl`, `Makefile.*`
- `include/vorbis/*.h` as vorbis/
- COPYING
## libvpx
- Upstream: https://chromium.googlesource.com/webm/libvpx/
- Version: 1.6.0
- License: BSD-3-Clause
Files extracted from upstream source:
TODO.
Important: File `libvpx/vpx_dsp/x86/vpx_subpixel_8t_intrin_avx2.c` has
Godot-made change marked with `// -- GODOT --` comments.
## libwebp
- Upstream: https://chromium.googlesource.com/webm/libwebp/
- Version: 1.0.0
- License: BSD-3-Clause
Files extracted from upstream source:
- `src/*` except from: .am, .rc and .in files
- AUTHORS, COPYING, PATENTS
Important: The files `utils/bit_reader_utils.{c,h}` have Godot-made
changes to ensure they build for Javascript/HTML5. Those
changes are marked with `// -- GODOT --` comments.
## libwebsockets
- Upstream: https://github.com/warmcat/libwebsockets
- Version: 3.0.0
- License: LGPLv2.1 + static linking exception
File extracted from upstream source:
- From `lib/` into `thirdparty/libwebsockets`:
- Everything from `core`
- From `event-libs` only the `poll` subfolder
- From `misc` only `base64-decode.c`, `getifaddrs.c`, `getifaddrs.h`, `lejp.c`, and `sha-1.c`
- From `plat` only `lws-plat-unix.c` and `lws-plat-win.c`
- From `roles` only `private.h`, `h1`, `http`, `listen`, `pipe`, `raw`, `ws`
- From `roles/http` exclude `minilex.c`
- From `roles/http/server` exclude `access-log.c`, `lws-spa.c`, `ranges.c`, and `rewrite.c`
- From `roles/ws` exclude `ext` folder.
- From `tls` exclude `openssl` folder.
- Also copy `win32helpers/` from `win32port/` inside `thirdparty/libwebsockets`
- A small fix has been added in `libwebsockets/libwebsockets.h` to `#include <sys/socket.h>` for the BSD family.
This change has been PRed upstream, and should be merged before the next update. Remember to check and remove this line.
- Another fix has been added to allow building for 32-bits UWP, replacing `GetFileSize[Ex]` and `CreateFileW` with supported functions.
There is a diff for this change in `thirdparty/libwebsockets/uwp_fixes.diff`
Important: `lws_config.h` and `lws_config_private.h` contains custom
Godot build configurations, check them out when updating.
## mbedtls
- Upstream: https://tls.mbed.org/
- Version: 2.12.0
- License: Apache 2.0
File extracted from upstream release tarball `mbedtls-2.12.0-apache.tgz`:
- All `*.h` from `include/mbedtls/` to `thirdparty/mbedtls/include/mbedtls/`
- All `*.c` from `library/` to `thirdparty/mbedtls/library/`
- Applied the patch in `thirdparty/mbedtls/1453.diff` (PR 1453). Soon to be merged upstream. Check it out at next update.
## miniupnpc
- Upstream: https://github.com/miniupnp/miniupnp/tree/master/miniupnpc
- Version: 2.1 (git 25615e0, 2018-05-08) with modifications
- License: BSD-3-Clause
The only modified file is miniupnpcstrings.h, which was created for Godot (is usually autogenerated by cmake).
## minizip
- Upstream: http://www.zlib.net
- Version: 1.2.11 (zlib contrib)
- License: zlib
Files extracted from the upstream source:
- contrib/minizip/{crypt.h,ioapi.{c,h},zip.{c,h},unzip.{c,h}}
Important: Some files have Godot-made changes for use in core/io.
They are marked with `/* GODOT start */` and `/* GODOT end */`
comments and a patch is provided in the minizip/ folder.
## misc
Collection of single-file libraries used in Godot components.
### core
- `aes256.{cpp,h}`
* Upstream: http://www.literatecode.com/aes256
* Version: latest, as of April 2017
* License: ISC
- `base64.{c,h}`
* Upstream: http://episec.com/people/edelkind/c.html
* Version: latest, as of April 2017
* License: Public Domain
- `clipper.{cpp,hpp}`
* Upstream: https://sourceforge.net/projects/polyclipping
* Version: 6.4.2
* License: BSL-1.0
- `fastlz.{c,h}`
* Upstream: https://github.com/ariya/FastLZ
* Version: git (f121734, 2007)
* License: MIT
- `hq2x.{cpp,h}`
* Upstream: https://github.com/brunexgeek/hqx
* Version: TBD, file structure differs
* License: Apache 2.0
- `md5.{cpp,h}`
* Upstream: http://www.efgh.com/software/md5.htm
* Version: TBD, might not be latest from above URL
* License: RSA Message-Digest License
- `pcg.{cpp,h}`
* Upstream: http://www.pcg-random.org
* Version: minimal C implementation, http://www.pcg-random.org/download.html
* License: Apache 2.0
- `sha256.{c,h}`
* Upstream: https://github.com/ilvn/SHA256
* Version: git (35ff823, 2015)
* License: ISC
- `smaz.{c,h}`
* Upstream: https://github.com/antirez/smaz
* Version: git (150e125, 2009)
* License: BSD-3-Clause
* Modifications: use `const char*` instead of `char*` for input string
- `triangulator.{cpp,h}`
* Upstream: https://github.com/ivanfratric/polypartition (`src/polypartition.cpp`)
* Version: TBD, class was renamed
* License: MIT
- `open-simplex-noise.{c,h}`
* Upstream: https://github.com/smcameron/open-simplex-noise-in-c
* Version: git (0d555e7, 2015)
* License: Unlicense
### modules
- `curl_hostcheck.{c,h}`
* Upstream: https://curl.haxx.se/
* Version: ? (2013)
* License: MIT
- `yuv2rgb.h`
* Upstream: http://wss.co.uk/pinknoise/yuv2rgb/ (to check)
* Version: ?
* License: BSD
### scene
- `easing_equations.cpp`
* Upstream: http://robertpenner.com/easing/ via https://github.com/jesusgollonet/ofpennereasing (modified to fit Godot types)
* Version: git (af72c14, 2008) + Godot types and style changes
* License: BSD-3-Clause
- `mikktspace.{c,h}`
* Upstream: https://wiki.blender.org/index.php/Dev:Shading/Tangent_Space_Normal_Maps
* Version: 1.0
* License: zlib
- `stb_truetype.h`
* Upstream: https://github.com/nothings/stb
* Version: 1.19
* License: Public Domain (Unlicense) or MIT
- `stb_vorbis.c`
* Upstream: https://github.com/nothings/stb
* Version: 1.14
* License: Public Domain (Unlicense) or MIT
## nanosvg
- Upstream: https://github.com/memononen/nanosvg
- Version: 9a74da4 (git)
- License: zlib
Files extracted from the upstream source:
- All .h files in `src/`
- LICENSE.txt
## opus
- Upstream: https://opus-codec.org
- Version: 1.1.5 (opus) and 0.8 (opusfile)
- License: BSD-3-Clause
Files extracted from upstream source:
- all .c and .h files in src/ (both opus and opusfile),
except `opus_demo.c`
- all .h files in include/ (both opus and opusfile) as opus/
- celt/ and silk/ subfolders
- COPYING
## pcre2
- Upstream: http://www.pcre.org/
- Version: 10.31
- License: BSD-3-Clause
Files extracted from upstream source:
- Files listed in the file NON-AUTOTOOLS-BUILD steps 1-4
- All .h files in src/
- src/pcre2_jit_match.c
- src/pcre2_jit_misc.c
- src/pcre2_jit_maketables.c
- src/sljit/*
- AUTHORS and LICENCE
## pvrtccompressor
- Upstream: https://bitbucket.org/jthlim/pvrtccompressor
- Version: hg (cf71777, 2015)
- License: BSD-3-Clause
Files extracted from upstream source:
- all .cpp and .h files apart from `main.cpp`
- LICENSE.TXT
## recastnavigation
- Upstream: https://github.com/recastnavigation/recastnavigation
- version: git (ef3ea40f, 2017)
- License: zlib
Files extracted from upstream source:
- `Recast/` folder
- License.txt
## rtaudio
- Upstream: http://www.music.mcgill.ca/~gary/rtaudio/
- Version: 4.1.2
- License: MIT-like
Files extracted from upstream source:
- `RtAudio.{cpp,h}`
## squish
- Upstream: https://sourceforge.net/projects/libsquish
- Version: 1.15
- License: MIT
Files extracted from upstream source:
- all .cpp, .h and .inl files
Important: Some files have Godot-made changes.
They are marked with `// -- GODOT start --` and `// -- GODOT end --`
comments and a patch is provided in the squish/ folder.
## thekla_atlas
- Upstream: https://github.com/Thekla/thekla_atlas
- Version: git (80a1430, 2017)
- License: MIT
Files extracted from the upstream source:
- Relevant sources from src/
- License.txt
Important: Some files have Godot-made changes, those
changes are marked with `// -- GODOT --` comments.
## tinyexr
- Upstream: https://github.com/syoyo/tinyexr
- Version: git (2d5375f, 2018)
- License: BSD-3-Clause
Files extracted from upstream source:
- `tinyexr.{cc,h}`
## zlib
- Upstream: http://www.zlib.net
- Version: 1.2.11
- License: zlib
Files extracted from upstream source:
- all .c and .h files
## zstd
- Upstream: https://github.com/facebook/zstd
- Version: 1.3.4
- License: BSD-3-Clause
Files extracted from upstream source:
- lib/{common/,compress/,decompress/,zstd.h}
- LICENSE
- Applied the patch in `thirdparty/zstd/1314.diff` (PR 1314 upstream, already merged). Needed to build on UWP ARM. Can be removed when a new version is released with the patch.
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