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This commit is contained in:
Chris
2023-08-12 09:49:26 +02:00
parent 537fba98c4
commit 044f42374b
22 changed files with 3090 additions and 3216 deletions
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224
synth/voice_allocator.h
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@@ -8,156 +8,136 @@ namespace trnr {
template <typename t_voice, typename t_sample>
class voice_allocator {
public:
std::vector<t_voice> voices;
std::vector<t_voice> voices;
voice_allocator()
: voices(4, t_voice())
{
// checks whether template derives from ivoice
typedef t_voice assert_at_compile_time[is_convertible<t_voice>::value ? 1 : -1];
}
voice_allocator()
: voices(4, t_voice())
{
// checks whether template derives from ivoice
typedef t_voice assert_at_compile_time[is_convertible<t_voice>::value ? 1 : -1];
}
void set_voice_count(const int& voice_count)
{
voices.resize(voice_count, voices.at(0));
}
void set_voice_count(const int& voice_count) { voices.resize(voice_count, voices.at(0)); }
void note_on(const midi_event& event)
{
t_voice* voice = get_free_voice(event.midi_note);
void note_on(const midi_event& event)
{
t_voice* voice = get_free_voice(event.midi_note);
if (voice == nullptr) {
voice = steal_voice();
}
if (voice == nullptr) { voice = steal_voice(); }
if (voice != nullptr) {
voice->note_on(event.midi_note, event.velocity);
}
}
if (voice != nullptr) { voice->note_on(event.midi_note, event.velocity); }
}
void note_off(const midi_event& event)
{
for (auto it = voices.begin(); it != voices.end(); it++) {
if ((*it).midi_note == event.midi_note) {
(*it).note_off();
}
}
}
void note_off(const midi_event& event)
{
for (auto it = voices.begin(); it != voices.end(); it++) {
if ((*it).midi_note == event.midi_note) { (*it).note_off(); }
}
}
void access(std::function<void(t_voice&)> f)
{
std::for_each(voices.begin(), voices.end(), f);
}
void access(std::function<void(t_voice&)> f) { std::for_each(voices.begin(), voices.end(), f); }
void process_samples(t_sample** _outputs, int _start_index, int _block_size)
{
for (int s = _start_index; s < _start_index + _block_size; s++) {
void process_samples(t_sample** _outputs, int _start_index, int _block_size)
{
for (int s = _start_index; s < _start_index + _block_size; s++) {
process_events(s);
process_events(s);
float voices_signal = 0.;
float voices_signal = 0.;
std::for_each(voices.begin(), voices.end(), [&voices_signal](t_voice& voice) {
voices_signal += (voice.process_sample() / 3.);
});
std::for_each(voices.begin(), voices.end(),
[&voices_signal](t_voice& voice) { voices_signal += (voice.process_sample() / 3.); });
_outputs[0][s] = voices_signal;
_outputs[1][s] = voices_signal;
}
}
_outputs[0][s] = voices_signal;
_outputs[1][s] = voices_signal;
}
}
void add_event(midi_event event)
{
input_queue.push_back(event);
}
void add_event(midi_event event) { input_queue.push_back(event); }
bool voices_active()
{
bool voices_active = false;
bool voices_active()
{
bool voices_active = false;
for (auto it = voices.begin(); it != voices.end(); it++) {
bool busy = (*it).is_busy();
voices_active |= busy;
}
for (auto it = voices.begin(); it != voices.end(); it++) {
bool busy = (*it).is_busy();
voices_active |= busy;
}
return voices_active;
}
return voices_active;
}
void set_samplerate(double _samplerate)
{
for (int i = 0; i < voices.size(); i++) {
voices.at(i).set_samplerate(_samplerate);
}
}
void set_samplerate(double _samplerate)
{
for (int i = 0; i < voices.size(); i++) { voices.at(i).set_samplerate(_samplerate); }
}
private:
std::vector<midi_event> input_queue;
int index_to_steal = 0;
std::vector<midi_event> input_queue;
int index_to_steal = 0;
t_voice* get_free_voice(float frequency)
{
t_voice* voice = nullptr;
t_voice* get_free_voice(float frequency)
{
t_voice* voice = nullptr;
for (auto it = voices.begin(); it != voices.end(); it++) {
if (!(*it).is_busy()) {
voice = &*it;
}
}
for (auto it = voices.begin(); it != voices.end(); it++) {
if (!(*it).is_busy()) { voice = &*it; }
}
return voice;
}
return voice;
}
t_voice* steal_voice()
{
t_voice* free_voice = nullptr;
t_voice* steal_voice()
{
t_voice* free_voice = nullptr;
for (auto it = voices.begin(); it != voices.end(); it++) {
if (!(*it).gate) {
free_voice = &*it;
break;
}
}
for (auto it = voices.begin(); it != voices.end(); it++) {
if (!(*it).gate) {
free_voice = &*it;
break;
}
}
if (free_voice == nullptr) {
free_voice = &voices.at(index_to_steal);
if (index_to_steal < voices.size() - 1) {
index_to_steal++;
} else {
index_to_steal = 0;
}
}
if (free_voice == nullptr) {
free_voice = &voices.at(index_to_steal);
return free_voice;
}
if (index_to_steal < voices.size() - 1) {
index_to_steal++;
} else {
index_to_steal = 0;
}
}
void process_events(int _start_index)
{
auto iterator = input_queue.begin();
while (iterator != input_queue.end()) {
return free_voice;
}
midi_event& event = *iterator;
if (event.offset == _start_index) {
void process_events(int _start_index)
{
auto iterator = input_queue.begin();
while (iterator != input_queue.end()) {
switch (event.type) {
case midi_event_type::note_on:
note_on(event);
break;
case midi_event_type::note_off:
note_off(event);
break;
case midi_event_type::pitch_wheel:
access([&event](t_voice& voice) { voice.modulate_pitch(event.data); });
break;
default:
break;
}
midi_event& event = *iterator;
if (event.offset == _start_index) {
iterator = input_queue.erase(iterator);
} else {
iterator++;
}
}
}
switch (event.type) {
case midi_event_type::note_on:
note_on(event);
break;
case midi_event_type::note_off:
note_off(event);
break;
case midi_event_type::pitch_wheel:
access([&event](t_voice& voice) { voice.modulate_pitch(event.data); });
break;
default:
break;
}
iterator = input_queue.erase(iterator);
} else {
iterator++;
}
}
}
};
}
} // namespace trnr