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added support for pitch wheel modulation

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This commit is contained in:
Christopher Herb
2023-07-10 17:04:16 +02:00
parent 2372d93c6f
commit bc213362f0
6 changed files with 69 additions and 42 deletions
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23
synth/voice_allocator.h
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@@ -1,6 +1,6 @@
#pragma once
#include "midi_event.h"
#include <vector>
#include "note_event.h"
namespace trnr {
@@ -8,7 +8,7 @@ template <typename t_voice>
class voice_allocator {
public:
std::vector<t_voice> voices;
voice_allocator()
: voices(8, t_voice())
{
@@ -19,7 +19,7 @@ public:
voices.resize(voice_count, voices.at(0));
}
void note_on(const note_event& event)
void note_on(const midi_event& event)
{
t_voice* voice = get_free_voice(event.midi_note);
@@ -32,7 +32,7 @@ public:
}
}
void note_off(const note_event& event)
void note_off(const midi_event& event)
{
for (auto it = voices.begin(); it != voices.end(); it++) {
if ((*it).midi_note == event.midi_note) {
@@ -63,7 +63,7 @@ public:
}
}
void add_event(note_event event)
void add_event(midi_event event)
{
input_queue.push_back(event);
}
@@ -88,7 +88,7 @@ public:
}
private:
std::vector<note_event> input_queue;
std::vector<midi_event> input_queue;
t_voice* get_free_voice(float frequency)
{
@@ -126,16 +126,21 @@ private:
auto iterator = input_queue.begin();
while (iterator != input_queue.end()) {
note_event& event = *iterator;
midi_event& event = *iterator;
if (event.offset == _start_index) {
switch (event.type) {
case note_event_type::note_on:
case midi_event_type::note_on:
note_on(event);
break;
case note_event_type::note_off:
case midi_event_type::note_off:
note_off(event);
break;
case midi_event_type::pitch_wheel:
access([&event](t_voice& voice) { voice.pitch_mod = event.data; });
break;
default:
break;
}
iterator = input_queue.erase(iterator);