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#include "synth_sf2.h"
#include "engine/sound_driver_manager.h"
#include "globals/md5.h"
int AudioSynthSF2::_get_internal_control_port_count() const {
return 0;
}
ControlPort *AudioSynthSF2::_get_internal_control_port(int p_index) {
return NULL;
}
bool AudioSynthSF2::has_secondary_input() const {
return false;
}
void AudioSynthSF2::process(const Event *p_events, int p_event_count, const AudioFrame *p_in, AudioFrame *p_out, bool p_prev_active) {
int midi_event_count;
float time = float(block_size) / mix_rate;
const MIDIEventStamped *midi_events = _process_midi_events(p_events, p_event_count, time, midi_event_count);
if (!soundfont) {
for (int i = 0; i < block_size; i++) {
p_out[i] = AudioFrame(0, 0);
}
return;
}
for (int i = 0; i < midi_event_count; i++) {
const MIDIEvent &e = midi_events[i].event;
switch (e.type) {
case MIDIEvent::SEQ_TEMPO: {
} break;
case MIDIEvent::SEQ_SIGNATURE: {
} break;
case MIDIEvent::SEQ_BAR: {
} break;
case MIDIEvent::SEQ_BEAT: {
} break;
case MIDIEvent::SEQ_SCALE: {
} break;
case MIDIEvent::STREAM_TAIL: {
} break;
case MIDIEvent::MIDI_NOTE_OFF: {
tsf_channel_note_off(soundfont, 0, e.note.note);
} break;
case MIDIEvent::MIDI_NOTE_ON: {
tsf_channel_note_on(soundfont, 0, e.note.note, e.note.velocity / 127.0);
} break;
case MIDIEvent::MIDI_NOTE_PRESSURE: {
} break;
case MIDIEvent::MIDI_CONTROLLER: {
tsf_channel_midi_control(soundfont, 0, e.control.index, e.control.parameter);
} break;
case MIDIEvent::MIDI_PATCH_SELECT: {
} break;
case MIDIEvent::MIDI_AFTERTOUCH: {
} break;
case MIDIEvent::MIDI_PITCH_BEND: {
tsf_channel_set_pitchwheel(soundfont, 0, e.pitch_bend.bend);
} break;
case MIDIEvent::MIDI_SYSEX: {
} break;
}
}
//printf("render floats: %i\n", block_size);
tsf_render_float(soundfont, (float *)p_out, block_size);
}
void AudioSynthSF2::process_with_secondary(const Event *p_events, int p_event_count, const AudioFrame *p_in, const AudioFrame *p_secondary, AudioFrame *p_out, bool p_prev_active) {
}
void AudioSynthSF2::set_process_block_size(int p_size) {
block_size = p_size;
}
void AudioSynthSF2::set_sampling_rate(int p_hz) {
mix_rate = p_hz;
_update_mixer();
}
void AudioSynthSF2::reset() {
if (!soundfont) {
return;
}
//tsf_reset(soundfont);
tsf_note_off_all(soundfont);
}
/*info */
String AudioSynthSF2::get_name() const {
return "SF2 Player";
}
String AudioSynthSF2::get_unique_id() const {
return "sf2";
}
String AudioSynthSF2::get_provider_id() const {
return "internal";
}
String AudioSynthSF2::get_shared_data_key() const {
return data_key;
}
std::shared_ptr<Vector<uint8_t> > AudioSynthSF2::get_shared_data() const {
return sf2_data;
}
void AudioSynthSF2::set_shared_data(const std::shared_ptr<Vector<uint8_t> > &p_shared_data) {
sf2_data = p_shared_data;
_load_soundfont();
}
/* Load/Save */
JSON::Node AudioSynthSF2::_internal_to_json() const {
JSON::Node node = JSON::object();
node.add("preset", get_preset());
return node;
}
Error AudioSynthSF2::_internal_from_json(const JSON::Node &node) {
if (node.has("preset")) {
set_preset(node.get("preset").toInt());
}
return OK;
}
int AudioSynthSF2::get_preset_count() const {
if (!soundfont) {
return 0;
}
return tsf_get_presetcount(soundfont);
}
String AudioSynthSF2::get_preset_name(int p_preset) const {
if (!soundfont) {
return String();
}
return String(tsf_get_presetname(soundfont, p_preset));
}
int AudioSynthSF2::get_preset() const {
return preset;
}
void AudioSynthSF2::set_preset(int p_preset) {
SoundDriverManager::lock_driver();
tsf_channel_set_presetindex(soundfont, 0, p_preset);
SoundDriverManager::unlock_driver();
}
void AudioSynthSF2::_update_mixer() {
if (!soundfont) {
return;
}
tsf_set_output(soundfont, TSF_STEREO_INTERLEAVED, mix_rate);
}
void AudioSynthSF2::_load_soundfont() {
if (soundfont) {
SoundDriverManager::lock_driver();
tsf_close(soundfont);
soundfont = NULL;
SoundDriverManager::unlock_driver();
}
ERR_FAIL_COND(sf2_data->size() == 0);
SoundDriverManager::lock_driver();
soundfont = tsf_load_memory(&(*sf2_data)[0], sf2_data->size());
_update_mixer();
SoundDriverManager::unlock_driver();
data_key = "";
if (soundfont) {
MD5_CTX md5;
MD5Init(&md5);
MD5Update(&md5, &(*sf2_data)[0], sf2_data->size());
unsigned char md5c[16]; //128 bit
MD5Final(md5c, &md5);
for (int i = 0; i < 16; i++) {
char s[3] = { 0, 0, 0 };
static const char hexc[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
s[0] = hexc[md5c[i] & 0xF];
s[1] = hexc[md5c[i] >> 4];
data_key += s;
}
printf("SF2 LOAD OK: MD5: %s SIZE: %i\n", data_key.utf8().get_data(), sf2_data->size());
if (get_preset_count()) {
set_preset(0);
}
}
}
Error AudioSynthSF2::load_soundfount(const String &p_path) {
#ifdef WINDOWS_ENABLED
FILE *f = _wfopen(p_path.c_str(), L"rb");
#else
FILE *f = fopen(p_path.utf8().get_data(), "rb");
#endif
if (!f) {
return ERR_CANT_OPEN;
}
fseek(f, 0, SEEK_END);
size_t pos = ftell(f);
sf2_data = std::make_shared<Vector<uint8_t> >();
sf2_data->resize(pos);
fseek(f, 0, SEEK_SET);
fread(&(*sf2_data)[0], pos, 1, f);
fclose(f);
_load_soundfont();
preset = 0;
return soundfont != NULL ? OK : ERR_CANT_OPEN;
}
AudioSynthSF2::AudioSynthSF2() {
soundfont = NULL;
preset = 0;
mix_rate = 44100;
block_size = 128;
}
AudioSynthSF2::~AudioSynthSF2() {
if (soundfont) {
SoundDriverManager::lock_driver();
tsf_close(soundfont);
soundfont = NULL;
SoundDriverManager::unlock_driver();
}
}
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