Credits
=======

Jonathan Campbell, the maintainer of DOSBox-X does not claim to have written all of the code in this project.

The purpose of this document is to try and build a comprehensive list of source code in this repository that was borrowed from other projects.

The base code is from the [DOSBox](https://www.dosbox.com) project in which some of the SVN commits made since 2011 were incorporated into DOSBox-X. This code had since been heavily modified by the DOSBox-X project.

Some of the source code also came from similar projects such as [DOSBox SVN Daum](http://ykhwong.x-y.net), [DOSBox ECE](https://dosboxece.yesterplay.net/), [dosbox-staging](https://dosbox-staging.github.io/) and [vDosPlus](http://www.vdosplus.org/), with major works from other developers and contributors of DOSBox-X such as Wengier, aybe, Allofich, and rderooy.

A list of features ported from DOSBox SVN Daum:

* GUI menu bar (heavily improved since then)
* Some commands (PROMPT, MOUSE, VOL, DEVICE, etc)
* Basic support for automatic drive mounting (Windows)
* Printer output
* NE2000 Ethernet
* MT-32 emulation (MUNT)
* Internal 3dfx Voodoo card emulation (improved since then by Wengier and joncampbell123 along with code ported from DOSBox ECE)
* Some support for FluidSynth MIDI synthesizer
* Improved PC Speaker emulation accuracy
* CGA with Monochrome Monitor Support
* Support for CPU types like Pentium Pro
* Features such as V-Sync, xBRZ scaler, overscan border and stereo-swap
* Various patches such as DBCS and font patch

A list of features ported from DOSBox ECE:

* Support for FLAC, MP3, WAV and Vorbis CD-DA tracks
* Support for mapping mouse buttons to keyboard
* Improved support for 3dfx emulation (Glide wrapper and improved internal card emulation; both improved since then by Wengier)
* Improved support for FluidSynth MIDI synthesizer
* Updated Nuked OPL3 to 1.8

A list of features ported from dosbox-staging:

* AUTOTYPE command for scripted keyboard entry
* LS command (heavily improved since then by Wengier)
* Modem phonebook support
* Support for changing key bindings in runtime

A list of features ported from vDosPlus by Wengier:

* Long filename support (improved for FAT drives since then by Wengier and joncampbell123)
* Improved support for automatic drive mounting (Windows)
* Support for clipboard copy and paste (Windows)
* Several shell improvements

Features such as save & load states and Pentium MMX instructions were also ported from community contributions and have since been improved by the DOSBox-X project.

The [DOSBox-X website](https://dosbox-x.com) was designed and maintained by Wengier.

The [DOSBox-X Wiki](https://github.com/joncampbell123/dosbox-x/wiki) pages were created and updated by Wengier and rderooy.

This is an attempt to properly credit the other code and its sources below. It is **not** a complete list yet, and please feel free to revise and correct this list if there are errors.

NE2000 network card emulation (Bochs; LGPLv2+) src/hardware/ne2000.cpp

MT32 synthesizer (MUNT; LGPLv2.1+) src/libs/mt32/.cpp src/libs/mt32/.h

FluidSynth synthesizer (Tom Moebert; GPLv2+) src/libs/fluidsynth/.c src/libs/fluidsynth/.h

Framework-agnostic GUI toolkit (Jorg Walter; GPLv3+) src/libs/gui_tk/.cpp src/libs/gui_tk/.h

Porttalk library, to read/write I/O ports directly (Unknown source) src/libs/porttalk/.cpp src/libs/porttalk/.h

FLAC, MP3, WAV, and Vorbis libraries (David Reid, Kevin Croft, et al; GPLv2+) src/libs/decoders/mp3*.cpp src/libs/decoders/.c src/libs/decoders/.h

FreeDOS utilities as binary blobs (FreeDOS; no license) src/builtin/*.cpp

NukedOPL OPL3 emulation (Alexey Khokholov; GPLv2+) src/hardware/nukedopl.cpp

OPL emulation based on Ken Silverman OPL2 emulation (LGPLv2.1+) src/hardware/opl.cpp

MOS6581 SID emulation (GPLv2+) src/hardware/reSID/.cpp src/hardware/reSID/.h

SN76496 emulation (MAME project; GPLv2+) src/hardware/sn76496.h src/hardware/tandy_sound.cpp

3dfx Voodoo Graphics SST-1/2 emulation (Aaron Giles; BSD 3-clause) src/hardware/voodoo_emu.cpp

PC-98 FM board emulation (Neko Project II; BSD 3-clause) src/hardware/snd_pc98/*

QCOW image support (Michael Greger; GPLv2+) src/ints/qcow2_disk.cpp

HQ2X and HQ3X render scaler (ScummVM, Maxim Stepin; GPLv2+) src/gui/render_templates_hq2x.h