From 735cb48a834c069f574bd43746f6ac940975a712 Mon Sep 17 00:00:00 2001
From: Nanako <469449812@qq.com>
Date: Thu, 29 Feb 2024 09:49:16 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E6=B2=A1=E6=9C=89=E8=AE=BE?=
 =?UTF-8?q?=E7=BD=AEsample=20rate=E5=92=8Cblock=20size=E5=AF=BC=E8=87=B4?=
 =?UTF-8?q?=E7=9A=84vst2=E6=8F=92=E4=BB=B6=E5=B4=A9=E6=BA=83?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 core/audio/mixer/channel_node.cpp              | 5 +++--
 core/audio/mixer/channel_node.h                | 6 ++++--
 core/audio/mixer/mixer.cpp                     | 4 ++++
 core/audio/plugin_host/plugin_host_manager.cpp | 6 +++++-
 4 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/core/audio/mixer/channel_node.cpp b/core/audio/mixer/channel_node.cpp
index e48ecc6..7be5565 100644
--- a/core/audio/mixer/channel_node.cpp
+++ b/core/audio/mixer/channel_node.cpp
@@ -3,9 +3,10 @@
 #include "mixer.h"
 #include "mixer_track.h"
 
-null_channel_node null_channel_node::instance;
+null_channel_node* null_channel_node::instance;
 
-mixer_channel_node::mixer_channel_node(channel_interface* in_owner, mixer_track* in_track, uint32_t in_node_index): channel_node(in_owner, channel_node_type::mixer) {
+mixer_channel_node::mixer_channel_node(channel_interface* in_owner, mixer_track* in_track, uint32_t in_node_index): channel_node(
+        in_owner, channel_node_type::mixer), track_(in_track), node_index_(0) {
     const auto& headers = in_track->buffer.get_headers_vector();
 
     channel_headers_.push_back(headers[in_node_index * 2]);
diff --git a/core/audio/mixer/channel_node.h b/core/audio/mixer/channel_node.h
index 99cf174..95d6eb9 100644
--- a/core/audio/mixer/channel_node.h
+++ b/core/audio/mixer/channel_node.h
@@ -37,10 +37,12 @@ private:
 };
 
 class null_channel_node : public channel_node {
-    static null_channel_node instance;
+    static null_channel_node* instance;
 public:
     null_channel_node() : channel_node(nullptr, channel_node_type::null) {}
-    static null_channel_node* get() { return &instance; }
+    static void init() { instance = new null_channel_node(); }
+    static void destroy() { delete instance; }
+    static null_channel_node* get() { return instance; }
     std::string get_name() override { return "NullChannelNode"; }
 
     const std::vector<float*>& get_channel_headers() override;
diff --git a/core/audio/mixer/mixer.cpp b/core/audio/mixer/mixer.cpp
index 728fe4a..2089304 100644
--- a/core/audio/mixer/mixer.cpp
+++ b/core/audio/mixer/mixer.cpp
@@ -62,6 +62,8 @@ void build_instrument_process_node(const plugin_host* host, std::map<mixer_track
 
 void mixer::init(singleton_initliazer& initliazer) {
     singleton_t<mixer>::init(initliazer);
+    null_channel_node::init();
+
     auto device_manager = initliazer.require<audio_device_manager>();
     zero_track = new dummy_track();
     zero_track->rename("zero");
@@ -77,6 +79,8 @@ void mixer::init(singleton_initliazer& initliazer) {
 
 void mixer::release() {
     singleton_t<mixer>::release();
+    null_channel_node::destroy();
+
     for (const mixer_track* track : tracks_) {
         delete track;
     }
diff --git a/core/audio/plugin_host/plugin_host_manager.cpp b/core/audio/plugin_host/plugin_host_manager.cpp
index adddfe0..9de40ef 100644
--- a/core/audio/plugin_host/plugin_host_manager.cpp
+++ b/core/audio/plugin_host/plugin_host_manager.cpp
@@ -3,6 +3,7 @@
 #include "taskflow/taskflow.hpp"
 
 #include "plugin_host.h"
+#include "audio/device/audio_device_manager.h"
 #include "audio/mixer/channel_interface.h"
 #include "audio/mixer/mixer.h"
 #include "audio/mixer/mixer_track.h"
@@ -26,12 +27,15 @@ plugin_host* plugin_host_manager::load_plugin(const char* path) {
         return nullptr;
     }
     host->init_channel_interface();
-    host->try_open_editor();
+    host->on_update_buffer_size(g_audio_device_manager.get_buffer_size());
+    host->on_update_sample_rate(g_audio_device_manager.get_sample_rate());
+
     g_audio_thread_hub.push_message([this, host]() {
         instrument_track* instrument_track = g_mixer.create_instrument_track(host);
         host->channel->set_input_channel(instrument_track->get_channel_interface()->input_channel_nodes);
         host->channel->set_output_channel(instrument_track->get_channel_interface()->output_channel_nodes);
         host->owner_tracks.push_back(instrument_track);
+        host->update_channel_node_name();
         plugin_hosts_.push_back(host);
     });
     return host;