integrated libmidi into Musique codebase
This commit is contained in:
parent
b6b1209014
commit
6389535443
3
.gitmodules
vendored
3
.gitmodules
vendored
@ -1,3 +0,0 @@
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[submodule "lib/midi"]
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path = lib/midi
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url = https://git.wmi.amu.edu.pl/s416496/midi.git
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@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
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* Added `scan` builtin, which computes prefix sum of passed values when provided with addition operator
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* Added `scan` builtin, which computes prefix sum of passed values when provided with addition operator
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### Changed
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* Integrated libmidi library into Musique codebase
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### Fixed
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### Fixed
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* Prevented accidental recursive construction of Arrays and Values by making convinience constructor `Value::Value(std::vector<Value>&&)` explicit
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* Prevented accidental recursive construction of Arrays and Values by making convinience constructor `Value::Value(std::vector<Value>&&)` explicit
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10
README.md
10
README.md
@ -21,16 +21,6 @@ $ sudo apt install -y build-essential libasound2-dev
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## Budowanie interpretera
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## Budowanie interpretera
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Jeśli nie posiadasz zależności `lib/midi` to:
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```console
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$ git submodule init
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$ git submodule update
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$ (cd lib/midi; make)
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```
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A następnie zbuduj interpreter:
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```console
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```console
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$ make bin/musique
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$ make bin/musique
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```
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```
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@ -1,12 +1,12 @@
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MAKEFLAGS="-j $(grep -c ^processor /proc/cpuinfo)"
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MAKEFLAGS="-j $(grep -c ^processor /proc/cpuinfo)"
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CXXFLAGS:=$(CXXFLAGS) -std=c++20 -Wall -Wextra -Werror=switch -Werror=return-type -Werror=unused-result -Wno-maybe-uninitialized
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CXXFLAGS:=$(CXXFLAGS) -std=c++20 -Wall -Wextra -Werror=switch -Werror=return-type -Werror=unused-result -Wno-maybe-uninitialized
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CPPFLAGS:=$(CPPFLAGS) -Ilib/expected/ -Ilib/midi/include -I. -Ilib/bestline/
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CPPFLAGS:=$(CPPFLAGS) -Ilib/expected/ -I. -Ilib/bestline/
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RELEASE_FLAGS=-O2
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RELEASE_FLAGS=-O2
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DEBUG_FLAGS=-O0 -ggdb -fsanitize=undefined -DDebug
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DEBUG_FLAGS=-O0 -ggdb -fsanitize=undefined -DDebug
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CXX=g++
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CXX=g++
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LDFLAGS=-L./lib/midi/ -flto
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LDFLAGS=-flto
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LDLIBS=-lmidi-alsa -lasound -lpthread -static-libgcc -static-libstdc++
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LDLIBS=-lasound -lpthread -static-libgcc -static-libstdc++
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1
lib/midi
1
lib/midi
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Subproject commit f42b663f0d08fc629c7deb26cd32ee06fba76d83
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@ -1,7 +1,7 @@
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#ifndef MUSIQUE_INTERPRETER_HH
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#ifndef MUSIQUE_INTERPRETER_HH
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#define MUSIQUE_INTERPRETER_HH
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#define MUSIQUE_INTERPRETER_HH
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#include <midi.hh>
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#include <musique/midi/midi.hh>
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#include <musique/interpreter/context.hh>
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#include <musique/interpreter/context.hh>
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#include <musique/value/value.hh>
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#include <musique/value/value.hh>
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@ -6,11 +6,11 @@
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#include <span>
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#include <span>
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#include <thread>
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#include <thread>
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#include <midi.hh>
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#include <musique/interpreter/env.hh>
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#include <musique/format.hh>
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#include <musique/format.hh>
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#include <musique/interpreter/env.hh>
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#include <musique/interpreter/interpreter.hh>
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#include <musique/interpreter/interpreter.hh>
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#include <musique/lexer/lines.hh>
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#include <musique/lexer/lines.hh>
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#include <musique/midi/midi.hh>
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#include <musique/parser/parser.hh>
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#include <musique/parser/parser.hh>
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#include <musique/pretty.hh>
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#include <musique/pretty.hh>
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#include <musique/try.hh>
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#include <musique/try.hh>
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5
musique/midi/.gitignore
vendored
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5
musique/midi/.gitignore
vendored
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example-usage-alsa
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compile_commands.json
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.ccls-cache
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*.a
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*.o
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13
musique/midi/Makefile
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13
musique/midi/Makefile
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all: libmidi-alsa.a
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midi.o: midi.cc midi.hh
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g++ -c -std=c++20 -Wall -Wextra $< -o $@ -I.
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midi-alsa.o: alsa.cc midi.hh
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g++ -c -std=c++20 -Wall -Wextra $< -o $@ -I.
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libmidi-alsa.a: midi.o midi-alsa.o
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ar rcs $@ $^
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example-usage-alsa: example-usage-alsa.cc libmidi-alsa.a
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g++ -std=c++20 -Wall -Wextra $< -o $@ -L. -lmidi-alsa -lasound -Iinclude -g
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13
musique/midi/README.md
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13
musique/midi/README.md
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# `midi` sub library
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Utility library for interfacing MIDI protocol in different environments.
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## Available interfaces
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### ALSA
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To use with ALSA before including library define `MIDI_ENABLE_ALSA_SUPPORT` macro.
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To compile static library use `make libmidi-alsa`.
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When in doubt, see [`example-usage-alsa.cc`](./example-usage-alsa.cc).
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237
musique/midi/alsa.cc
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237
musique/midi/alsa.cc
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#define MIDI_ENABLE_ALSA_SUPPORT
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#include <musique/midi/midi.hh>
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#include <cassert>
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#include <iomanip>
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#include <iostream>
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/// Ensures that operation performed by ALSA was successfull
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static int ensure_snd(int maybe_error, std::string_view message)
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{
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if (maybe_error < 0) {
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std::cerr << "ALSA ERROR: " << message << ": " << snd_strerror(maybe_error) << std::endl;
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std::exit(1);
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}
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return maybe_error;
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}
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static void create_source_port(midi::ALSA &alsa);
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static void create_queue(midi::ALSA &alsa);
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static void connect_port(midi::ALSA &alsa);
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static void send_note_event(midi::ALSA &alsa, snd_seq_event_type type, uint8_t channel, uint8_t note, uint8_t velocity);
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midi::ALSA::ALSA(std::string connection_name)
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: connection_name(connection_name)
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{
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}
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void midi::ALSA::init_sequencer()
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{
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ensure_snd(snd_seq_open(&seq, "default", SND_SEQ_OPEN_DUPLEX, 0), "opening sequencer");
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ensure_snd(snd_seq_set_client_name(seq, connection_name.c_str()), "setting client name");
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ensure_snd(client = snd_seq_client_id(seq), "getting client id");
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}
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void midi::ALSA::connect_output(std::string const& target)
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{
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assert(!connected);
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ensure_snd(snd_seq_parse_address(seq, &output_port_addr, target.c_str()), "Invalid port specification");
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create_source_port(*this);
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create_queue(*this);
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connect_port(*this);
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connected = true;
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}
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void midi::ALSA::connect_input(std::string const& target)
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{
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ensure_snd(snd_seq_parse_address(seq, &input_port_addr, target.c_str()), "Invalid port specification");
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input_port = ensure_snd(snd_seq_create_simple_port(seq, connection_name.c_str(),
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SND_SEQ_PORT_CAP_WRITE |
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SND_SEQ_PORT_CAP_SUBS_WRITE,
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SND_SEQ_PORT_TYPE_MIDI_GENERIC |
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SND_SEQ_PORT_TYPE_APPLICATION), "create simple port");
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ensure_snd(snd_seq_connect_from(seq, input_port, input_port_addr.client, input_port_addr.port),
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"connect from");
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}
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void midi::ALSA::list_ports(std::ostream& out) const
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{
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snd_seq_client_info_t *c;
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snd_seq_port_info_t *p;
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// Wonders of C based API <3
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snd_seq_client_info_alloca(&c);
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snd_seq_port_info_alloca(&p);
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out << " Port Client name Port name\n";
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snd_seq_client_info_set_client(c, -1);
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while (snd_seq_query_next_client(seq, c) >= 0) {
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int client = snd_seq_client_info_get_client(c);
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snd_seq_port_info_set_client(p, client);
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snd_seq_port_info_set_port(p, -1);
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while (snd_seq_query_next_port(seq, p) >= 0) {
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// Port must support MIDI messages
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if (!(snd_seq_port_info_get_type(p) & SND_SEQ_PORT_TYPE_MIDI_GENERIC)) continue;
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// Both WRITE and SUBS_WRITE are required
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// TODO Aquire knowladge why
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auto const exp = SND_SEQ_PORT_CAP_WRITE | SND_SEQ_PORT_CAP_SUBS_WRITE;
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if ((snd_seq_port_info_get_capability(p) & exp) != exp) continue;
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out <<
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std::setw(3) << std::right << snd_seq_port_info_get_client(p) << ':' <<
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std::setw(3) << std::left << snd_seq_port_info_get_port(p) << " " <<
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std::setw(32) << std::left << snd_seq_client_info_get_name(c) << " " <<
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snd_seq_port_info_get_name(p) << '\n';
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}
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}
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out << std::flush;
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}
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void midi::ALSA::send_note_on(uint8_t channel, uint8_t note_number, uint8_t velocity)
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{
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send_note_event(*this, SND_SEQ_EVENT_NOTEON, channel, note_number, velocity);
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}
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void midi::ALSA::send_note_off(uint8_t channel, uint8_t note_number, uint8_t velocity)
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{
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send_note_event(*this, SND_SEQ_EVENT_NOTEOFF, channel, note_number, velocity);
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}
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void midi::ALSA::send_program_change(uint8_t channel, uint8_t program)
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{
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snd_seq_event_t ev;
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snd_seq_ev_clear(&ev);
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ev.queue = queue;
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ev.source.port = 0;
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ev.flags = SND_SEQ_TIME_STAMP_TICK;
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ev.type = SND_SEQ_EVENT_PGMCHANGE;
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ev.time.tick = 0;
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ev.dest = output_port_addr;
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snd_seq_ev_set_fixed(&ev);
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ev.data.control.channel = channel;
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ev.data.control.value = program;
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ensure_snd(snd_seq_event_output(seq, &ev), "output event");
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ensure_snd(snd_seq_drain_output(seq), "drain output queue");
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}
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void midi::ALSA::send_controller_change(uint8_t channel, uint8_t controller_number, uint8_t value)
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{
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snd_seq_event_t ev;
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snd_seq_ev_clear(&ev);
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ev.queue = queue;
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ev.source.port = 0;
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ev.flags = SND_SEQ_TIME_STAMP_TICK;
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ev.type = SND_SEQ_EVENT_CONTROLLER;
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ev.time.tick = 0;
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ev.dest = output_port_addr;
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snd_seq_ev_set_fixed(&ev);
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ev.data.control.channel = channel;
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ev.data.control.param = controller_number;
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ev.data.control.value = value;
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ensure_snd(snd_seq_event_output(seq, &ev), "output event");
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ensure_snd(snd_seq_drain_output(seq), "drain output queue");
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}
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void midi::ALSA::input_event_loop(std::stop_token stop_token)
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{
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int const poll_fd_count = snd_seq_poll_descriptors_count(seq, POLLIN);
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std::vector<pollfd> poll_fds(poll_fd_count);
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ensure_snd(snd_seq_poll_descriptors(seq, poll_fds.data(), poll_fds.size(), POLLIN), "poll descriptors");
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while (!stop_token.stop_requested()) {
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if (poll(poll_fds.data(), poll_fds.size(), -1) < 0) {
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return;
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}
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while (!stop_token.stop_requested()) {
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snd_seq_event_t *event;
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if (snd_seq_event_input(seq, &event) < 0) { break; }
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if (!event) { continue; }
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switch (event->type) {
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case SND_SEQ_EVENT_NOTEON:
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if (!event->data.note.velocity)
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goto noteoff;
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if (note_on_callback)
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note_on_callback(event->data.note.channel, event->data.note.note, event->data.note.velocity);
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break;
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case SND_SEQ_EVENT_NOTEOFF:
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noteoff:
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if (note_off_callback)
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note_off_callback(event->data.note.channel, event->data.note.note);
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break;
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default:
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// TODO Add all events as callbacks
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break;
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}
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}
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}
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}
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bool midi::ALSA::supports_output() const
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{
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return output_port < 0;
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}
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bool midi::ALSA::supports_input () const
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{
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return input_port < 0;
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}
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static void create_source_port(midi::ALSA &alsa)
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{
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snd_seq_port_info_t *pinfo;
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snd_seq_port_info_alloca(&pinfo);
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snd_seq_port_info_set_port(pinfo, alsa.output_port);
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snd_seq_port_info_set_port_specified(pinfo, 1);
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snd_seq_port_info_set_name(pinfo, alsa.connection_name.c_str());
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snd_seq_port_info_set_capability(pinfo, 0);
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snd_seq_port_info_set_type(pinfo, SND_SEQ_PORT_TYPE_MIDI_GENERIC | SND_SEQ_PORT_TYPE_APPLICATION);
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ensure_snd(snd_seq_create_port(alsa.seq, pinfo), "create port");
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}
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static void create_queue(midi::ALSA &alsa)
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{
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ensure_snd(alsa.queue = snd_seq_alloc_named_queue(alsa.seq, alsa.connection_name.c_str()), "create queue");
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snd_seq_queue_tempo_t *queue_tempo;
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snd_seq_queue_tempo_alloca(&queue_tempo);
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// We assume time division as ticks per quarter
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snd_seq_queue_tempo_set_tempo(queue_tempo, 500'000); // 120 BPM
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snd_seq_queue_tempo_set_ppq(queue_tempo, 96);
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ensure_snd(snd_seq_set_queue_tempo(alsa.seq, alsa.queue, queue_tempo), "set queue tempo");
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}
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static void connect_port(midi::ALSA &alsa)
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{
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ensure_snd(snd_seq_connect_to(alsa.seq, alsa.output_port, alsa.output_port_addr.client, alsa.output_port_addr.port), "connect to port");
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}
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static void send_note_event(midi::ALSA &alsa, snd_seq_event_type type, uint8_t channel, uint8_t note, uint8_t velocity)
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{
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snd_seq_event_t ev;
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snd_seq_ev_clear(&ev);
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ev.queue = alsa.queue;
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ev.source.port = alsa.output_port;
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|
ev.flags = SND_SEQ_TIME_STAMP_TICK;
|
||||||
|
|
||||||
|
ev.type = type;
|
||||||
|
ev.time.tick = 0;
|
||||||
|
ev.dest = alsa.output_port_addr;
|
||||||
|
|
||||||
|
snd_seq_ev_set_fixed(&ev);
|
||||||
|
ev.data.note.channel = channel;
|
||||||
|
ev.data.note.note = note;
|
||||||
|
ev.data.note.velocity = velocity;
|
||||||
|
|
||||||
|
ensure_snd(snd_seq_event_output(alsa.seq, &ev), "output event");
|
||||||
|
ensure_snd(snd_seq_drain_output(alsa.seq), "drain output queue");
|
||||||
|
}
|
18
musique/midi/midi.cc
Normal file
18
musique/midi/midi.cc
Normal file
@ -0,0 +1,18 @@
|
|||||||
|
#include <musique/midi/midi.hh>
|
||||||
|
|
||||||
|
#include <concepts>
|
||||||
|
#include <type_traits>
|
||||||
|
|
||||||
|
template<typename T>
|
||||||
|
concept Enum = std::is_enum_v<T>;
|
||||||
|
|
||||||
|
/// Converts enum to underlying type
|
||||||
|
static constexpr auto u(Enum auto e)
|
||||||
|
{
|
||||||
|
return static_cast<std::underlying_type_t<decltype(e)>>(e);
|
||||||
|
}
|
||||||
|
|
||||||
|
void midi::Connection::send_all_sounds_off(uint8_t channel)
|
||||||
|
{
|
||||||
|
send_controller_change(channel, u(Controller::All_Notes_Off), 0);
|
||||||
|
}
|
80
musique/midi/midi.hh
Normal file
80
musique/midi/midi.hh
Normal file
@ -0,0 +1,80 @@
|
|||||||
|
#pragma once
|
||||||
|
#include <cstdint>
|
||||||
|
#include <functional>
|
||||||
|
|
||||||
|
#ifdef MIDI_ENABLE_ALSA_SUPPORT
|
||||||
|
#include <alsa/asoundlib.h>
|
||||||
|
#include <ostream>
|
||||||
|
#include <stop_token>
|
||||||
|
|
||||||
|
#ifdef assert
|
||||||
|
#undef assert
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Documentation of midi messages available at http://midi.teragonaudio.com/tech/midispec.htm
|
||||||
|
namespace midi
|
||||||
|
{
|
||||||
|
struct Connection
|
||||||
|
{
|
||||||
|
virtual bool supports_output() const = 0;
|
||||||
|
virtual bool supports_input () const = 0;
|
||||||
|
|
||||||
|
virtual void send_note_on (uint8_t channel, uint8_t note_number, uint8_t velocity) = 0;
|
||||||
|
virtual void send_note_off(uint8_t channel, uint8_t note_number, uint8_t velocity) = 0;
|
||||||
|
virtual void send_program_change(uint8_t channel, uint8_t program) = 0;
|
||||||
|
virtual void send_controller_change(uint8_t channel, uint8_t controller_number, uint8_t value) = 0;
|
||||||
|
|
||||||
|
void send_all_sounds_off(uint8_t channel);
|
||||||
|
|
||||||
|
std::function<void(uint8_t, uint8_t, uint8_t)> note_on_callback = nullptr;
|
||||||
|
std::function<void(uint8_t, uint8_t)> note_off_callback = nullptr;
|
||||||
|
};
|
||||||
|
|
||||||
|
#ifdef MIDI_ENABLE_ALSA_SUPPORT
|
||||||
|
struct ALSA : Connection
|
||||||
|
{
|
||||||
|
explicit ALSA(std::string connection_name);
|
||||||
|
|
||||||
|
/// Initialize connection with ALSA
|
||||||
|
void init_sequencer();
|
||||||
|
|
||||||
|
/// Connect with specific ALSA port for outputing MIDI messages
|
||||||
|
void connect_output(std::string const& target);
|
||||||
|
|
||||||
|
/// Connect with specific ALSA port for reading MIDI messages
|
||||||
|
void connect_input(std::string const& target);
|
||||||
|
|
||||||
|
/// List available ports
|
||||||
|
void list_ports(std::ostream &out) const;
|
||||||
|
|
||||||
|
bool supports_output() const override;
|
||||||
|
bool supports_input () const override;
|
||||||
|
|
||||||
|
void send_note_on (uint8_t channel, uint8_t note_number, uint8_t velocity) override;
|
||||||
|
void send_note_off(uint8_t channel, uint8_t note_number, uint8_t velocity) override;
|
||||||
|
void send_program_change(uint8_t channel, uint8_t program) override;
|
||||||
|
void send_controller_change(uint8_t channel, uint8_t controller_number, uint8_t value) override;
|
||||||
|
|
||||||
|
void input_event_loop(std::stop_token);
|
||||||
|
|
||||||
|
/// Name that is used by ALSA to describe our connection
|
||||||
|
std::string connection_name = {};
|
||||||
|
bool connected = false;
|
||||||
|
snd_seq_t *seq = nullptr;
|
||||||
|
long client = 0;
|
||||||
|
int queue = 0;
|
||||||
|
snd_seq_addr_t input_port_addr{};
|
||||||
|
snd_seq_addr_t output_port_addr{};
|
||||||
|
int input_port = -1;
|
||||||
|
int output_port = -1;
|
||||||
|
};
|
||||||
|
#endif
|
||||||
|
|
||||||
|
/// All defined controllers for controller change message
|
||||||
|
enum class Controller : uint8_t
|
||||||
|
{
|
||||||
|
All_Notes_Off = 120,
|
||||||
|
};
|
||||||
|
}
|
@ -4,6 +4,6 @@ bin/%.o: musique/%.cc
|
|||||||
@echo "CXX $@"
|
@echo "CXX $@"
|
||||||
@$(CXX) $(CXXFLAGS) $(RELEASE_FLAGS) $(CPPFLAGS) -o $@ $< -c
|
@$(CXX) $(CXXFLAGS) $(RELEASE_FLAGS) $(CPPFLAGS) -o $@ $< -c
|
||||||
|
|
||||||
bin/musique: $(Release_Obj) bin/main.o bin/bestline.o lib/midi/libmidi-alsa.a
|
bin/musique: $(Release_Obj) bin/main.o bin/bestline.o
|
||||||
@echo "CXX $@"
|
@echo "CXX $@"
|
||||||
@$(CXX) $(CXXFLAGS) $(RELEASE_FLAGS) $(CPPFLAGS) -o $@ $(Release_Obj) bin/bestline.o $(LDFLAGS) $(LDLIBS)
|
@$(CXX) $(CXXFLAGS) $(RELEASE_FLAGS) $(CPPFLAGS) -o $@ $(Release_Obj) bin/bestline.o $(LDFLAGS) $(LDLIBS)
|
||||||
|
Loading…
Reference in New Issue
Block a user