This is the source repository of the MIDI-controlled sample player for AMIGA under the GPL-3.0-or-later license. It is Open Source now.
midiIn was developed by me from early 1995 until late 1999, and it was my first mature project. The idea came from Sebastian Witkowski, who was also a big fan of the AMIGA. As a professional musician, he wished he could play samples without pesky limits, using the MIDI interface, in the studio, as well as on stage. There were many programs for AMIGA that provided similar functionality. Most of them were built primarily for other purposes, and MIDI-controlled sample playing was always their secondary function. midiIn was designed and developed solely with the one thing in mind: to play as many samples as can fit in memory, pushing the AMIGA to her limits. Because of that, it became the best tool for such a task available at a time.
midiIn was battle-tested during many in the studio and on the stage hours during Najakotiva performances. Together in tandem with the AMIGA A1200+030 the Atari ST was also used with its sequencer, the awesome Cubase.
The first publicly released version was midiIn v1.0. It could only play 2 samples at once using a simple and already well-known trick to make Paula produce two 14-bit audio channels instead of its 4 DMA channels with the 8-bit quality. But it could run even on A500. At the time of its release, I already had the "Unlimited" version of mixing routines in the alpha stage. For the next 2 years, the program was tested by Sebastian, as well as several other musicians around the world, before I decided to release its successor: midiIn32. This time it could play as many 16-bit samples, mixed in real-time, as the CPU could allow - which was around 10 on A1200+030 and 32 on MC68040/060.
Around the end of 2019, the two great Musicians from The Other Days have contacted me regarding midiIn32. They have been using it for at least a few past years with their own custom-built MiST-based-ultimate-play-every-chiptune-format-and-mix-in-real-time-DJ-machine, and wanted to add some new features. For the next several months, we have been discussing how to approach this. Finally, I have decided that it would be best if I'll just release the sources.
midiIn v32.014, midiIn v32.020b
Copyright (C) 1995-1999 Rafal Michalski <royaltm75@gmail.com>
midiIn 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.
midiIn 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.
You should have received a copy of the GNU General Public License
along with midiIn. If not, see <https://www.gnu.org/licenses/>.
The above copyright notice applies to all of the files in this repository except the files in the Modules directory.
Tagged as 32.020 is a never before released version of midiIn with great "new" features, and with its sound mixing routines targeting the AHI subsystem instead of native Paula chipset. This one was not as thoroughly tested as the previous versions, but here it is.
I've also added sources of a pre-release version, tagged 32.014, that includes the original Paula-only mixing routines. Just do git checkout 32.014. Unfortunately, I didn't preserve sources for the released midiIn v32.15b, but 014 is the closest I could find. Back in the days, GIT wasn't a thing yet, and as a self-taught programmer without the Internet, version control systems were not commonly used as they are today. I don't even know if there was such a solution for AMIGA anyway. So I've developed my system, which was archiving source files between releases. Unfortunately, only a few of those archived files survived all of the hard disc crashes that happened in the meantime.
- The AMIGA (or an emulator).
- The AmigaE compiler with all of the necessary modules, including EasyGUI, AHI, ARQ, IFFParser and midibase.
- EasyGUI v3+ (not sure if the whole installation is needed).
- An MC68020+ assembler to compile
modules/softmix.s, try Barfly. - Assuming your
AmigaEinstallation resides inProg:E_v3.2a, add to theuser-startupthe following:
;BEGIN E
Assign >NIL: E: Prog:E_v3.2a
Assign >NIL: EMODULES: E:Modules
Path E:bin/ ADD
;END E
cd src.- Build
modules/softmix.ofrom modules/softmix.s, using an MC68020+ assembler. - Run
Amiga Shellscript: make.
This should produce midiIn executable in src.
midiIn GUI was written in AmigaE using the EasyGUI library. Mixing routines are written in 68k asm and require an assembler that understands MC68020+ instructions.
To run midiIn you'll also need some libraries (these were distributed with the original midiIn archive file):
- reqtools.library v38+
- midi.library
and last but not least: a working AHI sound driver.
System mathieeedoubbas.library is also being extensively used. For the optimal experience, speed it up with FastIEEE.
When using the 3.3+ version of EasyGUI, some constants might need to be removed or refactored, mainly because it dropped the EG_WIDTH/EG_HEIGHT concept to replace it with EG_MAXH/EG_MAXW booleans.
If still in trouble, see the Modules directory.
Because I didn't have yet nowadays the opportunity to test the compilation process myself, feel free to create an issue if you have any trouble with making it compile. I'll try to address it if I'm able to.
These sources are old and not maintained since the last century (hehe). They are also very seldom commented, as they were not intended for opening, and many things may seem to be odd. But if you feel like it, I'll gladly accept pull requests.