From bcfcb91cca5d1242aed854575848894a9d1e79a4 Mon Sep 17 00:00:00 2001
From: Nanako <469449812@qq.com>
Date: Tue, 23 Jul 2024 21:08:19 +0800
Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9E=E5=BD=93=E6=9A=82=E5=81=9C?=
 =?UTF-8?q?=E6=97=B6=E5=8F=91=E9=80=81midi=20note=20all=20stop=E4=BA=8B?=
 =?UTF-8?q?=E4=BB=B6?=
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---
 core/audio/midi_sequencer/midi_sequencer.cpp | 17 ++++++++++++++---
 core/audio/midi_sequencer/midi_sequencer.h   |  8 +++-----
 core/audio/plugin_host/plugin_host.cpp       |  5 +++++
 core/audio/plugin_host/plugin_host.h         |  1 +
 4 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/core/audio/midi_sequencer/midi_sequencer.cpp b/core/audio/midi_sequencer/midi_sequencer.cpp
index 4c9d4bf..91ab892 100644
--- a/core/audio/midi_sequencer/midi_sequencer.cpp
+++ b/core/audio/midi_sequencer/midi_sequencer.cpp
@@ -13,7 +13,7 @@ IMPL_SINGLETON_INSTANCE(midi_sequencer)
 
 
 void midi_sequencer::test() {
-    const char* path = R"(F:\VST\VST64\4Front Piano x64.dll)";
+    const char* path = R"(F:\VST\VST64\Serum_x64.dll)";
     // host->try_open_editor();
 
     smf::MidiFile midifile("E:/Projects/AronaStudio/Arona/resources/1.mid");
@@ -21,7 +21,7 @@ void midi_sequencer::test() {
         spdlog::critical("Error reading MIDI file");
     midifile.doTimeAnalysis();
     midifile.linkNotePairs();
-    midifile.joinTracks();
+    // midifile.joinTracks();
     auto c = get_midi_sequencer()->create_clip<midi_clip>();
     auto track_count = midifile.getTrackCount();
     for (int i = 0; i < track_count; ++i) {
@@ -45,7 +45,7 @@ void midi_sequencer::init(singleton_initliazer& initliazer) {
     singleton_t::init(initliazer);
     auto adm = initliazer.require<audio_device_manager>();
     adm->on_sample_rate_changed.add_raw(this, &midi_sequencer::on_sample_rate_changed);
-    set_bpm(140.0);
+    set_bpm(200.0);
 }
 
 void midi_sequencer::process(double sample_rate, uint32_t delta_frames) {
@@ -59,6 +59,17 @@ void midi_sequencer::process(double sample_rate, uint32_t delta_frames) {
     update_vst2_time_info();
 }
 
+auto midi_sequencer::toggle_play() -> bool {
+    playing_ = !playing_;
+    if (!playing_) {
+        auto instruments = g_plugin_host_manager.get_instrument_hosts();
+        for (auto instrument : instruments) {
+            instrument->push_stop_all_notes();
+        }
+    }
+    return playing_;
+}
+
 auto midi_sequencer::create_clip_instance(clip* clip) -> clip_instance* {
     auto instance = new clip_instance(clip);
     clip_instances_.push_back(instance);
diff --git a/core/audio/midi_sequencer/midi_sequencer.h b/core/audio/midi_sequencer/midi_sequencer.h
index d8c921c..9f06355 100644
--- a/core/audio/midi_sequencer/midi_sequencer.h
+++ b/core/audio/midi_sequencer/midi_sequencer.h
@@ -1,4 +1,5 @@
 #pragma once
+#include <atomic>
 #include <cstdint>
 
 #include "misc/tick.h"
@@ -14,10 +15,7 @@ public:
 
     void init(singleton_initliazer& initliazer) override;
     void process(double sample_rate, uint32_t delta_frames);
-    auto toggle_play() -> bool {
-        playing_ = !playing_;
-        return playing_;
-    }
+    auto toggle_play() -> bool ;
 
     template<class T>
     auto create_clip() -> T* {
@@ -44,7 +42,7 @@ protected:
 private:
     void update_vst2_time_info();
 
-    bool playing_ = false;
+    std::atomic<bool> playing_ = false;
     double bpm_ = 0;
     double sample_pos_ = 0;
     int32_t tpq_pos_ = 0;
diff --git a/core/audio/plugin_host/plugin_host.cpp b/core/audio/plugin_host/plugin_host.cpp
index 31beb0b..efb7e7e 100644
--- a/core/audio/plugin_host/plugin_host.cpp
+++ b/core/audio/plugin_host/plugin_host.cpp
@@ -24,6 +24,11 @@ void plugin_host::on_update_buffer_size(int buffer_size)
     }
 }
 
+void plugin_host::push_stop_all_notes(uint32_t frame_delta) {
+    smf::MidiEvent event(0xB0, 0x7B, 0x00);
+    push_midi(event, frame_delta);
+}
+
 void plugin_host::try_open_editor() {
     if (!has_editor())
         return;
diff --git a/core/audio/plugin_host/plugin_host.h b/core/audio/plugin_host/plugin_host.h
index fe53e6a..31dd821 100644
--- a/core/audio/plugin_host/plugin_host.h
+++ b/core/audio/plugin_host/plugin_host.h
@@ -59,6 +59,7 @@ public:
 
     virtual void process(uint32_t frame_num) = 0;
     virtual void push_midi(const smf::MidiEvent& event, uint32_t frame_delta) = 0;
+    void push_stop_all_notes(uint32_t frame_delta = 0);
 
     void try_open_editor();