depot/third_party/nixpkgs/pkgs/applications/audio/helm/default.nix

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{ lib, stdenv
, fetchFromGitHub
, fetchpatch
, xorg
, freetype
, alsa-lib
, curl
, libjack2
, lv2
, pkg-config
, libGLU
, libGL
}:
stdenv.mkDerivation {
version = "0.9.0";
pname = "helm";
src = fetchFromGitHub {
owner = "mtytel";
repo = "helm";
rev = "927d2ed27f71a735c3ff2a1226ce3129d1544e7e";
sha256 = "17ys2vvhncx9i3ydg3xwgz1d3gqv4yr5mqi7vr0i0ca6nad6x3d4";
};
buildInputs = [
xorg.libX11 xorg.libXcomposite xorg.libXcursor xorg.libXext
xorg.libXinerama xorg.libXrender xorg.libXrandr
freetype alsa-lib curl libjack2 libGLU libGL lv2
];
nativeBuildInputs = [ pkg-config ];
CXXFLAGS = "-DHAVE_LROUND";
enableParallelBuilding = true;
makeFlags = [ "DESTDIR=$(out)" ];
patches = [
# gcc9 compatibility https://github.com/mtytel/helm/pull/233
(fetchpatch {
url = "https://github.com/mtytel/helm/commit/cb611a80bd5a36d31bfc31212ebbf79aa86c6f08.patch";
sha256 = "1i2289srcfz17c3zzab6f51aznzdj62kk53l4afr32bkjh9s4ixk";
})
];
prePatch = ''
sed -i 's|usr/||g' Makefile
sed -i "s|/usr/share/|$out/share/|" src/common/load_save.cpp
'';
meta = with lib; {
homepage = "http://tytel.org/helm";
description = "A free, cross-platform, polyphonic synthesizer";
longDescription = ''
A free, cross-platform, polyphonic synthesizer.
Features:
32 voice polyphony
Interactive visual interface
Powerful modulation system with live visual feedback
Dual oscillators with cross modulation and up to 15 oscillators each
Unison and Harmony mode for oscillators
Oscillator feedback and saturation for waveshaping
12 different waveforms
7 filter types with keytracking
2 monophonic and 1 polyphonic LFO
Step sequencer
Lots of modulation sources including polyphonic aftertouch
Simple arpeggiator
Effects: Formant filter, stutter, delay
'';
license = lib.licenses.gpl3Plus;
maintainers = [ maintainers.magnetophon ];
platforms = platforms.linux;
mainProgram = "helm";
};
}