From bb09c71bda983d59cf5073b6ef31614a831369bf Mon Sep 17 00:00:00 2001 From: Bruce Brown <1st-BrainStormer@users.noreply.github.com> Date: Thu, 18 Jan 2018 21:35:01 -0800 Subject: [PATCH] Fix crash caused by no midi device present --- Midi.cpp | 406 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ Midi.h | 108 +++++++++++++++ 2 files changed, 514 insertions(+) create mode 100644 Midi.cpp create mode 100644 Midi.h diff --git a/Midi.cpp b/Midi.cpp new file mode 100644 index 0000000000..ec13508805 --- /dev/null +++ b/Midi.cpp @@ -0,0 +1,406 @@ +// +// Midi.cpp +// libraries/midi/src +// +// Created by Burt Sloane +// Modified by Bruce Brown +// Copyright 2015 High Fidelity, Inc. +// +// Distributed under the Apache License, Version 2.0. +// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html +// + +#include "Midi.h" + + +#include + +#if defined Q_OS_WIN32 +#include "Windows.h" +#endif + +#if defined Q_OS_WIN32 +const int MIDI_BYTE_MASK = 0x0FF; +const int MIDI_NIBBLE_MASK = 0x00F; +const int MIDI_PITCH_BEND_MASK = 0x3F80; +const int MIDI_SHIFT_STATUS = 4; +const int MIDI_SHIFT_NOTE = 8; +const int MIDI_SHIFT_VELOCITY = 16; +const int MIDI_SHIFT_PITCH_BEND = 9; +// Status Decode +const int MIDI_NOTE_OFF = 0x8; +const int MIDI_NOTE_ON = 0x9; +const int MIDI_POLYPHONIC_KEY_PRESSURE = 0xa; +const int MIDI_PROGRAM_CHANGE = 0xc; +const int MIDI_CHANNEL_PRESSURE = 0xd; +const int MIDI_PITCH_BEND_CHANGE = 0xe; +const int MIDI_SYSTEM_MESSAGE = 0xf; +#endif + +const int MIDI_CONTROL_CHANGE = 0xb; +const int MIDI_CHANNEL_MODE_ALL_NOTES_OFF = 0x07b; + +static Midi* instance = NULL; // communicate this to non-class callbacks +static bool thruModeEnabled = false; +static bool broadcastEnabled = false; +static bool typeNoteOffEnabled = true; +static bool typeNoteOnEnabled = true; +static bool typePolyKeyPressureEnabled = false; +static bool typeControlChangeEnabled = true; +static bool typeProgramChangeEnabled = true; +static bool typeChanPressureEnabled = false; +static bool typePitchBendEnabled = true; +static bool typeSystemMessageEnabled = false; + +std::vector Midi::midiInExclude; +std::vector Midi::midiOutExclude; + +#if defined Q_OS_WIN32 + +#pragma comment(lib, "Winmm.lib") + +// +std::vector midihin; +std::vector midihout; + +void CALLBACK MidiInProc(HMIDIIN hMidiIn, UINT wMsg, DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2) { + switch (wMsg) { + case MIM_OPEN: + // message not used + break; + case MIM_CLOSE: + for (int i = 0; i < midihin.size(); i++) { + if (midihin[i] == hMidiIn) { + midihin[i] = NULL; + instance->allNotesOff(); + instance->midiHardwareChange(); + } + } + break; + case MIM_DATA: { + int device = -1; + for (int i = 0; i < midihin.size(); i++) { + if (midihin[i] == hMidiIn) { + device = i; + } + } + int raw = dwParam1; + int channel = (MIDI_NIBBLE_MASK & dwParam1) + 1; + int status = MIDI_BYTE_MASK & dwParam1; + int type = MIDI_NIBBLE_MASK & (dwParam1 >> MIDI_SHIFT_STATUS); + int note = MIDI_BYTE_MASK & (dwParam1 >> MIDI_SHIFT_NOTE); + int velocity = MIDI_BYTE_MASK & (dwParam1 >> MIDI_SHIFT_VELOCITY); + int bend = 0; + int program = 0; + if (!typeNoteOffEnabled && type == MIDI_NOTE_OFF) { + return; + } + if (!typeNoteOnEnabled && type == MIDI_NOTE_ON) { + return; + } + if (!typePolyKeyPressureEnabled && type == MIDI_POLYPHONIC_KEY_PRESSURE) { + return; + } + if (!typeControlChangeEnabled && type == MIDI_CONTROL_CHANGE) { + return; + } + if (typeProgramChangeEnabled && type == MIDI_PROGRAM_CHANGE) { + program = note; + note = 0; + } + if (typeChanPressureEnabled && type == MIDI_CHANNEL_PRESSURE) { + velocity = note; + note = 0; + } + if (typePitchBendEnabled && type == MIDI_PITCH_BEND_CHANGE) { + bend = ((MIDI_BYTE_MASK & (dwParam1 >> MIDI_SHIFT_NOTE)) | + (MIDI_PITCH_BEND_MASK & (dwParam1 >> MIDI_SHIFT_PITCH_BEND))) - 8192; + channel = 0; // Weird values on different instruments + note = 0; + velocity = 0; + } + if (!typeSystemMessageEnabled && type == MIDI_SYSTEM_MESSAGE) { + return; + } + if (thruModeEnabled) { + instance->sendNote(status, note, velocity); // relay the message on to all other midi devices. + } + instance->midiReceived(device, raw, channel, status, type, note, velocity, bend, program); // notify the javascript + break; + } + } +} + +void CALLBACK MidiOutProc(HMIDIOUT hmo, UINT wMsg, DWORD_PTR dwInstance, DWORD_PTR dwParam1, DWORD_PTR dwParam2) { + switch (wMsg) { + case MOM_OPEN: + // message not used + break; + case MOM_CLOSE: + for (int i = 0; i < midihout.size(); i++) { + if (midihout[i] == hmo) { + midihout[i] = NULL; + instance->allNotesOff(); + instance->midiHardwareChange(); + } + } + break; + } +} + +void Midi::sendRawMessage(int device, int raw) { + if (broadcastEnabled) { + for (int i = 0; i < midihout.size(); i++) { + if (midihout[i] != NULL) { + midiOutShortMsg(midihout[i], raw); + } + } + } else { + midiOutShortMsg(midihout[device], raw); + } +} + +void Midi::sendMessage(int device, int channel, int type, int note, int velocity) { + int message = (channel - 1) | (type << MIDI_SHIFT_STATUS); + if (broadcastEnabled) { + for (int i = 1; i < midihout.size(); i++) { // Skip 0 (Microsoft GS Wavetable Synth) + if (midihout[i] != NULL) { + midiOutShortMsg(midihout[i], message | (note << MIDI_SHIFT_NOTE) | (velocity << MIDI_SHIFT_VELOCITY)); + } + } + } else { + midiOutShortMsg(midihout[device], message | (note << MIDI_SHIFT_NOTE) | (velocity << MIDI_SHIFT_VELOCITY)); + } +} + +void Midi::sendNote(int status, int note, int velocity) { + for (int i = 1; i < midihout.size(); i++) { // Skip 0 (Microsoft GS Wavetable Synth) + if (midihout[i] != NULL) { + midiOutShortMsg(midihout[i], status + (note << MIDI_SHIFT_NOTE) + (velocity << MIDI_SHIFT_VELOCITY)); + } + } +} + +void Midi::MidiSetup() { + midihin.clear(); + midihout.clear(); + + MIDIINCAPS incaps; + for (unsigned int i = 0; i < midiInGetNumDevs(); i++) { + midiInGetDevCaps(i, &incaps, sizeof(MIDIINCAPS)); + + bool found = false; + for (int j = 0; j < midiInExclude.size(); j++) { + if (midiInExclude[j].toStdString().compare(incaps.szPname) == 0) { + found = true; + break; + } + } + if (!found) { // EXCLUDE AN INPUT BY NAME + HMIDIIN tmphin; + midiInOpen(&tmphin, i, (DWORD_PTR)MidiInProc, NULL, CALLBACK_FUNCTION); + midiInStart(tmphin); + midihin.push_back(tmphin); + } + } + + MIDIOUTCAPS outcaps; + for (unsigned int i = 0; i < midiOutGetNumDevs(); i++) { + midiOutGetDevCaps(i, &outcaps, sizeof(MIDIINCAPS)); + + bool found = false; + for (int j = 0; j < midiOutExclude.size(); j++) { + if (midiOutExclude[j].toStdString().compare(outcaps.szPname) == 0) { + found = true; + break; + } + } + if (!found) { // EXCLUDE AN OUTPUT BY NAME + HMIDIOUT tmphout; + midiOutOpen(&tmphout, i, (DWORD_PTR)MidiOutProc, NULL, CALLBACK_FUNCTION); + midihout.push_back(tmphout); + } + } + + allNotesOff(); +} + +void Midi::MidiCleanup() { + allNotesOff(); + + for (int i = 0; i < midihin.size(); i++) { + if (midihin[i] != NULL) { + midiInStop(midihin[i]); + midiInClose(midihin[i]); + } + } + for (int i = 0; i < midihout.size(); i++) { + if (midihout[i] != NULL) { + midiOutClose(midihout[i]); + } + } + midihin.clear(); + midihout.clear(); +} +#else +void Midi::sendRawMessage(int device, int raw) { +} + +void Midi::sendNote(int status, int note, int velocity) { +} + +void Midi::sendMessage(int device, int channel, int type, int note, int velocity){ +} + +void Midi::MidiSetup() { + allNotesOff(); +} + +void Midi::MidiCleanup() { + allNotesOff(); +} +#endif + +void Midi::midiReceived(int device, int raw, int channel, int status, int type, int note, int velocity, int bend, int program) { + QVariantMap eventData; + eventData["device"] = device; + eventData["raw"] = raw; + eventData["channel"] = channel; + eventData["status"] = status; + eventData["type"] = type; + eventData["note"] = note; + eventData["velocity"] = velocity; + eventData["bend"] = bend; + eventData["program"] = program; + emit midiNote(eventData);// Legacy + emit midiMessage(eventData); +} + +void Midi::midiHardwareChange() { + emit midiReset(); +} +// + +Midi::Midi() { + instance = this; + MidiSetup(); +} + +Midi::~Midi() { +} + +void Midi::sendRawDword(int device, int raw) { + sendRawMessage(device, raw); +} + +void Midi::playMidiNote(int status, int note, int velocity) { + sendNote(status, note, velocity); +} + +void Midi::sendMidiMessage(int device, int channel, int type, int note, int velocity) { + sendMessage(device, channel, type, note, velocity); +} + +void Midi::allNotesOff() { + sendNote(MIDI_CONTROL_CHANGE, MIDI_CHANNEL_MODE_ALL_NOTES_OFF, 0); // all notes off +} + +void Midi::resetDevices() { + MidiCleanup(); + MidiSetup(); +} + +void Midi::USBchanged() { + instance->MidiCleanup(); + instance->MidiSetup(); + instance->midiHardwareChange(); +} + +// + +QStringList Midi::listMidiDevices(bool output) { + QStringList rv; +#if defined Q_OS_WIN32 + if (output) { + MIDIOUTCAPS outcaps; + for (unsigned int i = 0; i < midiOutGetNumDevs(); i++) { + midiOutGetDevCaps(i, &outcaps, sizeof(MIDIINCAPS)); + rv.append(outcaps.szPname); + } + } else { + MIDIINCAPS incaps; + for (unsigned int i = 0; i < midiInGetNumDevs(); i++) { + midiInGetDevCaps(i, &incaps, sizeof(MIDIINCAPS)); + rv.append(incaps.szPname); + } + } +#endif + return rv; +} + +void Midi::unblockMidiDevice(QString name, bool output) { + if (output) { + for (unsigned long i = 0; i < midiOutExclude.size(); i++) { + if (midiOutExclude[i].toStdString().compare(name.toStdString()) == 0) { + midiOutExclude.erase(midiOutExclude.begin() + i); + break; + } + } + } else { + for (unsigned long i = 0; i < midiInExclude.size(); i++) { + if (midiInExclude[i].toStdString().compare(name.toStdString()) == 0) { + midiInExclude.erase(midiInExclude.begin() + i); + break; + } + } + } +} + +void Midi::blockMidiDevice(QString name, bool output) { + unblockMidiDevice(name, output); // make sure it's only in there once + if (output) { + midiOutExclude.push_back(name); + } else { + midiInExclude.push_back(name); + } +} + +void Midi::thruModeEnable(bool enable) { + thruModeEnabled = enable; +} + +void Midi::broadcastEnable(bool enable) { + broadcastEnabled = enable; +} + +void Midi::typeNoteOffEnable(bool enable) { + typeNoteOffEnabled = enable; +} + +void Midi::typeNoteOnEnable(bool enable) { + typeNoteOnEnabled = enable; +} + +void Midi::typePolyKeyPressureEnable(bool enable) { + typePolyKeyPressureEnabled = enable; +} + +void Midi::typeControlChangeEnable(bool enable) { + typeControlChangeEnabled = enable; +} + +void Midi::typeProgramChangeEnable(bool enable) { + typeProgramChangeEnabled = enable; +} + +void Midi::typeChanPressureEnable(bool enable) { + typeChanPressureEnabled = enable; +} + +void Midi::typePitchBendEnable(bool enable) { + typePitchBendEnabled = enable; +} + +void Midi::typeSystemMessageEnable(bool enable) { + typeSystemMessageEnabled = enable; +} diff --git a/Midi.h b/Midi.h new file mode 100644 index 0000000000..f7940bbe5d --- /dev/null +++ b/Midi.h @@ -0,0 +1,108 @@ +// +// Midi.h +// libraries/midi/src +// +// Created by Burt Sloane +// Modified by Bruce Brown +// Copyright 2015 High Fidelity, Inc. +// +// Distributed under the Apache License, Version 2.0. +// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html +// + +#ifndef hifi_Midi_h +#define hifi_Midi_h + +#include +#include +#include + +#include +#include + +class Midi : public QObject, public Dependency { + Q_OBJECT + SINGLETON_DEPENDENCY + +public: + void midiReceived(int device, int raw, int channel, int status, int type, int note, int velocity, int bend, int program); // relay a note to Javascript + void midiHardwareChange(); // relay hardware change to Javascript + void sendRawMessage(int device, int raw); // relay midi message to MIDI outputs + void sendNote(int status, int note, int velocity); // relay a note to MIDI outputs + void sendMessage(int device, int channel, int type, int note, int velocity); // relay a message to MIDI outputs + static void USBchanged(); + +private: + static std::vector midiInExclude; + static std::vector midiOutExclude; + +private: + void MidiSetup(); + void MidiCleanup(); + +signals: + void midiNote(QVariantMap eventData); + void midiMessage(QVariantMap eventData); + void midiReset(); + + public slots: + // Send Raw Midi Packet to all connected devices + Q_INVOKABLE void sendRawDword(int device, int raw); + /// Send Raw Midi message to selected device + /// @param {int} device: device number + /// @param {int} raw: raw midi message (DWORD) + + // Send Midi Message to all connected devices + Q_INVOKABLE void sendMidiMessage(int device, int channel, int type, int note, int velocity); + /// Send midi message to selected device/devices + /// @param {int} device: device number + /// @param {int} channel: channel number + /// @param {int} type: 0x8 is noteoff, 0x9 is noteon (if velocity=0, noteoff), etc + /// @param {int} note: midi note number + /// @param {int} velocity: note velocity (0 means noteoff) + + // Send Midi Message to all connected devices + Q_INVOKABLE void playMidiNote(int status, int note, int velocity); + /// play a note on all connected devices + /// @param {int} status: 0x80 is noteoff, 0x90 is noteon (if velocity=0, noteoff), etc + /// @param {int} note: midi note number + /// @param {int} velocity: note velocity (0 means noteoff) + + /// turn off all notes on all connected devices + Q_INVOKABLE void allNotesOff(); + + /// clean up and re-discover attached devices + Q_INVOKABLE void resetDevices(); + + /// ask for a list of inputs/outputs + Q_INVOKABLE QStringList listMidiDevices(bool output); + + /// block an input/output by name + Q_INVOKABLE void blockMidiDevice(QString name, bool output); + + /// unblock an input/output by name + Q_INVOKABLE void unblockMidiDevice(QString name, bool output); + + /// repeat all incoming notes to all outputs (default disabled) + Q_INVOKABLE void thruModeEnable(bool enable); + + /// broadcast on all unblocked devices + Q_INVOKABLE void broadcastEnable(bool enable); + + /// filter by event types + Q_INVOKABLE void typeNoteOffEnable(bool enable); + Q_INVOKABLE void typeNoteOnEnable(bool enable); + Q_INVOKABLE void typePolyKeyPressureEnable(bool enable); + Q_INVOKABLE void typeControlChangeEnable(bool enable); + Q_INVOKABLE void typeProgramChangeEnable(bool enable); + Q_INVOKABLE void typeChanPressureEnable(bool enable); + Q_INVOKABLE void typePitchBendEnable(bool enable); + Q_INVOKABLE void typeSystemMessageEnable(bool enable); + + +public: + Midi(); + virtual ~Midi(); +}; + +#endif // hifi_Midi_h