Separate render window from main window

src/localization/localization.h

@@ -11,11 +11,11 @@
 namespace localization {
 
 static std::vector<std::string> menu = {u8"菜单", "Menu"};
-static std::vector<std::string> local_id = {u8"本机ID:", "Local ID:"};
+static std::vector<std::string> local_id = {u8"本机ID", "Local ID"};
-static std::vector<std::string> password = {u8"密码:", "Password:"};
+static std::vector<std::string> password = {u8"密码", "Password"};
 static std::vector<std::string> max_password_len = {u8"最大6个字符",
                                                     "Max 6 chars"};
-static std::vector<std::string> remote_id = {u8"对端ID:", "Remote ID:"};
+static std::vector<std::string> remote_id = {u8"对端ID", "Remote ID"};
 static std::vector<std::string> connect = {u8"连接", "Connect"};
 static std::vector<std::string> disconnect = {u8"断开连接", "Disconnect"};
 static std::vector<std::string> fullscreen = {u8"全屏", "Fullscreen"};

src/multiple_windows/layout_style.h

@@ -0,0 +1,81 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-06-14
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _LAYOUT_STYLE_H_
+#define _LAYOUT_STYLE_H_
+
+#ifdef _WIN32
+#define MENU_WINDOW_WIDTH_CN 300
+#define MENU_WINDOW_HEIGHT_CN 245
+#define MENU_WINDOW_WIDTH_EN 190
+#define MENU_WINDOW_HEIGHT_EN 245
+#define IPUT_WINDOW_WIDTH 190
+#define INPUT_WINDOW_PADDING_CN 66
+#define INPUT_WINDOW_PADDING_EN 96
+#define SETTINGS_WINDOW_WIDTH_CN 181
+#define SETTINGS_WINDOW_WIDTH_EN 228
+#define SETTINGS_WINDOW_HEIGHT_CN 190
+#define SETTINGS_WINDOW_HEIGHT_EN 190
+#define LANGUAGE_SELECT_WINDOW_PADDING_CN 100
+#define LANGUAGE_SELECT_WINDOW_PADDING_EN 147
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN 100
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN 147
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN 100
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN 147
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN 154
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN 201
+#define SETTINGS_SELECT_WINDOW_WIDTH 73
+#define SETTINGS_OK_BUTTON_PADDING_CN 55
+#define SETTINGS_OK_BUTTON_PADDING_EN 78
+#elif __linux__
+#define MENU_WINDOW_WIDTH_CN 160
+#define MENU_WINDOW_HEIGHT_CN 245
+#define MENU_WINDOW_WIDTH_EN 190
+#define MENU_WINDOW_HEIGHT_EN 245
+#define IPUT_WINDOW_WIDTH 90
+#define INPUT_WINDOW_PADDING_CN 60
+#define INPUT_WINDOW_PADDING_EN 80
+#define SETTINGS_WINDOW_WIDTH_CN 188
+#define SETTINGS_WINDOW_WIDTH_EN 228
+#define SETTINGS_WINDOW_HEIGHT_CN 190
+#define SETTINGS_WINDOW_HEIGHT_EN 190
+#define LANGUAGE_SELECT_WINDOW_PADDING_CN 100
+#define LANGUAGE_SELECT_WINDOW_PADDING_EN 140
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN 100
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN 140
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN 100
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN 140
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN 161
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN 201
+#define SETTINGS_SELECT_WINDOW_WIDTH 60
+#define SETTINGS_OK_BUTTON_PADDING_CN 60
+#define SETTINGS_OK_BUTTON_PADDING_EN 80
+#elif __APPLE__
+#define MENU_WINDOW_WIDTH_CN 148
+#define MENU_WINDOW_HEIGHT_CN 244
+#define MENU_WINDOW_WIDTH_EN 148
+#define MENU_WINDOW_HEIGHT_EN 244
+#define IPUT_WINDOW_WIDTH 77
+#define INPUT_WINDOW_PADDING_CN 63
+#define INPUT_WINDOW_PADDING_EN 63
+#define SETTINGS_WINDOW_WIDTH_CN 160
+#define SETTINGS_WINDOW_WIDTH_EN 220
+#define SETTINGS_WINDOW_HEIGHT_CN 190
+#define SETTINGS_WINDOW_HEIGHT_EN 190
+#define LANGUAGE_SELECT_WINDOW_PADDING_CN 90
+#define LANGUAGE_SELECT_WINDOW_PADDING_EN 150
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN 90
+#define VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN 150
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN 90
+#define VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN 150
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECK_WINDOW_PADDING_CN 133
+#define ENABLE_HARDWARE_VIDEO_CODEC_CHECK_WINDOW_PADDING_EN 193
+#define SETTINGS_SELECT_WINDOW_WIDTH 62
+#define SETTINGS_OK_BUTTON_PADDING_CN 50
+#define SETTINGS_OK_BUTTON_PADDING_EN 80
+#endif
+
+#endif

src/multiple_windows/main_window.cpp

@@ -0,0 +1,898 @@
+#include "main_window.h"
+
+#include <fstream>
+#include <iostream>
+#include <string>
+
+#include "device_controller_factory.h"
+#include "layout_style.h"
+#include "localization.h"
+#include "log.h"
+#include "platform.h"
+#include "screen_capturer_factory.h"
+
+// Refresh Event
+#define REFRESH_EVENT (SDL_USEREVENT + 1)
+#define NV12_BUFFER_SIZE 1280 * 720 * 3 / 2
+
+MainWindow::MainWindow() {}
+
+MainWindow::~MainWindow() {}
+
+int MainWindow::SaveSettingsIntoCacheFile() {
+  cd_cache_file_ = fopen("cache.cd", "w+");
+  if (!cd_cache_file_) {
+    return -1;
+  }
+
+  fseek(cd_cache_file_, 0, SEEK_SET);
+  strncpy(cd_cache_.password, input_password_, sizeof(input_password_));
+  memcpy(&cd_cache_.language, &language_button_value_,
+         sizeof(language_button_value_));
+  memcpy(&cd_cache_.video_quality, &video_quality_button_value_,
+         sizeof(video_quality_button_value_));
+  memcpy(&cd_cache_.video_encode_format, &video_encode_format_button_value_,
+         sizeof(video_encode_format_button_value_));
+  memcpy(&cd_cache_.enable_hardware_video_codec, &enable_hardware_video_codec_,
+         sizeof(enable_hardware_video_codec_));
+  fwrite(&cd_cache_, sizeof(cd_cache_), 1, cd_cache_file_);
+  fclose(cd_cache_file_);
+
+  return 0;
+}
+
+int MainWindow::LoadSettingsIntoCacheFile() {
+  cd_cache_file_ = fopen("cache.cd", "r+");
+  if (!cd_cache_file_) {
+    return -1;
+  }
+
+  fseek(cd_cache_file_, 0, SEEK_SET);
+  fread(&cd_cache_, sizeof(cd_cache_), 1, cd_cache_file_);
+  fclose(cd_cache_file_);
+  strncpy(input_password_, cd_cache_.password, sizeof(cd_cache_.password));
+  language_button_value_ = cd_cache_.language;
+  video_quality_button_value_ = cd_cache_.video_quality;
+  video_encode_format_button_value_ = cd_cache_.video_encode_format;
+  enable_hardware_video_codec_ = cd_cache_.enable_hardware_video_codec;
+
+  return 0;
+}
+
+int MainWindow::StartScreenCapture() {
+  screen_capturer_ = (ScreenCapturer *)screen_capturer_factory_->Create();
+  ScreenCapturer::RECORD_DESKTOP_RECT rect;
+  rect.left = 0;
+  rect.top = 0;
+  rect.right = screen_width_;
+  rect.bottom = screen_height_;
+  last_frame_time_ = std::chrono::high_resolution_clock::now();
+
+  int screen_capturer_init_ret = screen_capturer_->Init(
+      rect, 60,
+      [this](unsigned char *data, int size, int width, int height) -> void {
+        auto now_time = std::chrono::high_resolution_clock::now();
+        std::chrono::duration<double> duration = now_time - last_frame_time_;
+        auto tc = duration.count() * 1000;
+
+        if (tc >= 0) {
+          SendData(peer_, DATA_TYPE::VIDEO, (const char *)data,
+                   NV12_BUFFER_SIZE);
+          last_frame_time_ = now_time;
+        }
+      });
+
+  if (0 == screen_capturer_init_ret) {
+    screen_capturer_->Start();
+  } else {
+    screen_capturer_->Destroy();
+    delete screen_capturer_;
+    screen_capturer_ = nullptr;
+  }
+
+  return 0;
+}
+
+int MainWindow::StopScreenCapture() {
+  if (screen_capturer_) {
+    LOG_INFO("Destroy screen capturer")
+    screen_capturer_->Destroy();
+    delete screen_capturer_;
+    screen_capturer_ = nullptr;
+  }
+
+  return 0;
+}
+
+int MainWindow::StartMouseControl() {
+  device_controller_factory_ = new DeviceControllerFactory();
+  mouse_controller_ = (MouseController *)device_controller_factory_->Create(
+      DeviceControllerFactory::Device::Mouse);
+  int mouse_controller_init_ret =
+      mouse_controller_->Init(screen_width_, screen_height_);
+  if (0 != mouse_controller_init_ret) {
+    LOG_INFO("Destroy mouse controller")
+    mouse_controller_->Destroy();
+    mouse_controller_ = nullptr;
+  }
+
+  return 0;
+}
+
+int MainWindow::StopMouseControl() {
+  if (mouse_controller_) {
+    mouse_controller_->Destroy();
+    delete mouse_controller_;
+    mouse_controller_ = nullptr;
+  }
+  return 0;
+}
+
+int MainWindow::CreateConnectionPeer() {
+  mac_addr_str_ = GetMac();
+
+  params_.use_cfg_file = false;
+  params_.signal_server_ip = "150.158.81.30";
+  params_.signal_server_port = 9099;
+  params_.stun_server_ip = "150.158.81.30";
+  params_.stun_server_port = 3478;
+  params_.turn_server_ip = "150.158.81.30";
+  params_.turn_server_port = 3478;
+  params_.turn_server_username = "dijunkun";
+  params_.turn_server_password = "dijunkunpw";
+  params_.hardware_acceleration = config_center_.IsHardwareVideoCodec();
+  params_.av1_encoding = config_center_.GetVideoEncodeFormat() ==
+                                 ConfigCenter::VIDEO_ENCODE_FORMAT::AV1
+                             ? true
+                             : false;
+  params_.on_receive_video_buffer = OnReceiveVideoBufferCb;
+  params_.on_receive_audio_buffer = OnReceiveAudioBufferCb;
+  params_.on_receive_data_buffer = OnReceiveDataBufferCb;
+  params_.on_signal_status = OnSignalStatusCb;
+  params_.on_connection_status = OnConnectionStatusCb;
+  params_.user_data = this;
+
+  peer_ = CreatePeer(&params_);
+  if (peer_) {
+    LOG_INFO("Create peer instance successful");
+    local_id_ = mac_addr_str_;
+    Init(peer_, local_id_.c_str());
+    LOG_INFO("Peer init finish");
+  } else {
+    LOG_INFO("Create peer instance failed");
+  }
+
+  return 0;
+}
+
+int MainWindow::Run() {
+  LoadSettingsIntoCacheFile();
+
+  localization_language_ = (ConfigCenter::LANGUAGE)language_button_value_;
+  localization_language_index_ = language_button_value_;
+
+  // Setup SDL
+  if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER |
+               SDL_INIT_GAMECONTROLLER) != 0) {
+    printf("Error: %s\n", SDL_GetError());
+    return -1;
+  }
+
+  // From 2.0.18: Enable native IME.
+#ifdef SDL_HINT_IME_SHOW_UI
+  SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");
+#endif
+
+  // Create main window with SDL_Renderer graphics context
+  SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_ALLOW_HIGHDPI);
+  main_window_ = SDL_CreateWindow("Remote Desk", SDL_WINDOWPOS_CENTERED,
+                                  SDL_WINDOWPOS_CENTERED, main_window_width_,
+                                  main_window_height_, window_flags);
+
+  SDL_DisplayMode DM;
+  SDL_GetCurrentDisplayMode(0, &DM);
+  screen_width_ = DM.w;
+  screen_height_ = DM.h;
+
+  sdl_renderer_ = SDL_CreateRenderer(
+      main_window_, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
+  if (sdl_renderer_ == nullptr) {
+    SDL_Log("Error creating SDL_Renderer!");
+    return 0;
+  }
+
+  pixformat_ = SDL_PIXELFORMAT_NV12;
+
+  sdl_texture_ =
+      SDL_CreateTexture(sdl_renderer_, pixformat_, SDL_TEXTUREACCESS_STREAMING,
+                        texture_width_, texture_height_);
+
+  // Setup Dear ImGui context
+  IMGUI_CHECKVERSION();
+  ImGui::CreateContext();
+  ImGuiIO &io = ImGui::GetIO();
+
+  io.ConfigFlags |=
+      ImGuiConfigFlags_NavEnableKeyboard;  // Enable Keyboard Controls
+  io.ConfigFlags |=
+      ImGuiConfigFlags_NavEnableGamepad;  // Enable Gamepad Controls
+
+  if (config_center_.GetLanguage() == ConfigCenter::LANGUAGE::CHINESE) {
+    // Load Fonts
+#ifdef _WIN32
+    std::string default_font_path = "c:/windows/fonts/simhei.ttf";
+    std::ifstream font_path_f(default_font_path.c_str());
+    std::string font_path =
+        font_path_f.good() ? "c:/windows/fonts/simhei.ttf" : "";
+    if (!font_path.empty()) {
+      io.Fonts->AddFontFromFileTTF(font_path.c_str(), 30.0f, NULL,
+                                   io.Fonts->GetGlyphRangesChineseFull());
+    }
+#elif __APPLE__
+    std::string default_font_path = "/System/Library/Fonts/PingFang.ttc";
+    std::ifstream font_path_f(default_font_path.c_str());
+    std::string font_path =
+        font_path_f.good() ? "/System/Library/Fonts/PingFang.ttc" : "";
+    if (!font_path.empty()) {
+      io.Fonts->AddFontFromFileTTF(font_path.c_str(), 13.0f, NULL,
+                                   io.Fonts->GetGlyphRangesChineseFull());
+    }
+#elif __linux__
+    io.Fonts->AddFontFromFileTTF("c:/windows/fonts/msyh.ttc", 13.0f, NULL,
+                                 io.Fonts->GetGlyphRangesChineseFull());
+#endif
+  }
+
+  // Setup Dear ImGui style
+  // ImGui::StyleColorsDark();
+  ImGui::StyleColorsLight();
+
+  // Setup Platform/Renderer backends
+  ImGui_ImplSDL2_InitForSDLRenderer(main_window_, sdl_renderer_);
+  ImGui_ImplSDLRenderer2_Init(sdl_renderer_);
+
+  CreateConnectionPeer();
+
+  {
+    nv12_buffer_ = new char[NV12_BUFFER_SIZE];
+
+    // Screen capture
+    screen_capturer_factory_ = new ScreenCapturerFactory();
+
+    // Mouse control
+    device_controller_factory_ = new DeviceControllerFactory();
+  }
+
+  // Main loop
+  while (!exit_) {
+    if (SignalStatus::SignalConnected == signal_status_ &&
+        !is_create_connection_) {
+      is_create_connection_ =
+          CreateConnection(peer_, mac_addr_str_.c_str(), input_password_)
+              ? false
+              : true;
+      LOG_INFO("Connected with signal server, create p2p connection");
+    }
+
+    if (!inited_ ||
+        localization_language_index_last_ != localization_language_index_) {
+      connect_button_label_ =
+          connect_button_pressed_
+              ? localization::disconnect[localization_language_index_]
+              : localization::connect[localization_language_index_];
+      fullscreen_button_label_ =
+          fullscreen_button_pressed_
+              ? localization::exit_fullscreen[localization_language_index_]
+              : localization::fullscreen[localization_language_index_];
+
+      mouse_control_button_label_ =
+          mouse_control_button_pressed_
+              ? localization::release_mouse[localization_language_index_]
+              : localization::control_mouse[localization_language_index_];
+
+      settings_button_label_ =
+          localization::settings[localization_language_index_];
+      inited_ = true;
+      localization_language_index_last_ = localization_language_index_;
+    }
+
+    if (start_screen_capture_ && !screen_capture_is_started_) {
+      StartScreenCapture();
+      screen_capture_is_started_ = true;
+    } else if (!start_screen_capture_ && screen_capture_is_started_) {
+      StopScreenCapture();
+      screen_capture_is_started_ = false;
+    }
+
+    if (start_mouse_control_ && !mouse_control_is_started_) {
+      StartMouseControl();
+      mouse_control_is_started_ = true;
+    } else if (!start_mouse_control_ && mouse_control_is_started_) {
+      StopMouseControl();
+      mouse_control_is_started_ = false;
+    }
+
+    // Start the Dear ImGui frame
+    ImGui_ImplSDLRenderer2_NewFrame();
+    ImGui_ImplSDL2_NewFrame();
+    ImGui::NewFrame();
+
+    // main window layout
+    {
+      ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Once);
+
+      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+        ImGui::SetNextWindowSize(
+            ImVec2(MENU_WINDOW_WIDTH_CN, MENU_WINDOW_HEIGHT_CN));
+      } else {
+        ImGui::SetNextWindowSize(
+            ImVec2(MENU_WINDOW_WIDTH_EN, MENU_WINDOW_HEIGHT_EN));
+      }
+
+      if (!connection_established_) {
+        ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
+        ImGui::Begin(localization::menu[localization_language_index_].c_str(),
+                     nullptr,
+                     ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                         ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar);
+        ImGui::SetWindowFontScale(0.5f);
+        ImGui::Text(u8"<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
+      } else {
+        // ImGui::SetNextWindowCollapsed(true, ImGuiCond_Once);
+        ImGui::Begin(localization::menu[localization_language_index_].c_str(),
+                     nullptr, ImGuiWindowFlags_None);
+      }
+
+      ImGui::Spacing();
+      ImGui::Separator();
+      ImGui::Spacing();
+
+      {
+        // local
+        {
+          ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0, 0, 0, 0.3));
+          ImGui::Text(
+              localization::local_id[localization_language_index_].c_str());
+          ImGui::PopStyleColor();
+
+          ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+          ImGui::Spacing();
+          ImGui::SetWindowFontScale(1.0f);
+          ImGui::InputText("##local_id", (char *)mac_addr_str_.c_str(),
+                           mac_addr_str_.length() + 1,
+                           ImGuiInputTextFlags_CharsUppercase |
+                               ImGuiInputTextFlags_ReadOnly);
+          ImGui::SetWindowFontScale(0.5f);
+          ImGui::Text(
+              localization::password[localization_language_index_].c_str());
+
+          strncpy(input_password_tmp_, input_password_,
+                  sizeof(input_password_));
+          ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+          ImGui::Spacing();
+          ImGui::SetWindowFontScale(1.0f);
+          ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(0, 0, 0, 0.3));
+
+          ImGui::InputTextWithHint(
+              "##server_pwd",
+              localization::max_password_len[localization_language_index_]
+                  .c_str(),
+              input_password_, IM_ARRAYSIZE(input_password_),
+              show_password_ ? ImGuiInputTextFlags_CharsNoBlank
+                             : ImGuiInputTextFlags_CharsNoBlank |
+                                   ImGuiInputTextFlags_Password);
+          ImGui::SameLine();
+          ImGui::SetWindowFontScale(0.5f);
+          if (ImGui::Button(u8"<EFBFBD>鿴<EFBFBD><EFBFBD><EFBFBD><EFBFBD>", ImVec2(80, 35))) {
+            show_password_ = !show_password_;
+          }
+
+          ImGui::PopStyleColor();
+
+          if (strcmp(input_password_tmp_, input_password_)) {
+            SaveSettingsIntoCacheFile();
+          }
+        }
+      }
+
+      ImGui::Spacing();
+      ImGui::Separator();
+      ImGui::Spacing();
+
+      ImGui::SetWindowFontScale(0.5f);
+      // Mouse control
+      if (ImGui::Button(mouse_control_button_label_.c_str())) {
+        if (mouse_control_button_label_ ==
+                localization::control_mouse[localization_language_index_] &&
+            connection_established_) {
+          mouse_control_button_pressed_ = true;
+          control_mouse_ = true;
+          mouse_control_button_label_ =
+              localization::release_mouse[localization_language_index_];
+        } else {
+          control_mouse_ = false;
+          mouse_control_button_label_ =
+              localization::control_mouse[localization_language_index_];
+        }
+        mouse_control_button_pressed_ = !mouse_control_button_pressed_;
+      }
+
+      ImGui::SameLine();
+      // Fullscreen
+      if (ImGui::Button(fullscreen_button_label_.c_str())) {
+        if (fullscreen_button_label_ ==
+            localization::fullscreen[localization_language_index_]) {
+          main_window_width_before_fullscreen_ = main_window_width_;
+          main_window_height_before_fullscreen_ = main_window_height_;
+          SDL_SetWindowFullscreen(main_window_, SDL_WINDOW_FULLSCREEN_DESKTOP);
+          fullscreen_button_label_ =
+              localization::exit_fullscreen[localization_language_index_];
+        } else {
+          SDL_SetWindowFullscreen(main_window_, SDL_FALSE);
+          SDL_SetWindowSize(main_window_, main_window_width_before_fullscreen_,
+                            main_window_height_before_fullscreen_);
+          main_window_width_ = main_window_width_before_fullscreen_;
+          main_window_height_ = main_window_height_before_fullscreen_;
+          fullscreen_button_label_ =
+              localization::fullscreen[localization_language_index_];
+        }
+        fullscreen_button_pressed_ = !fullscreen_button_pressed_;
+      }
+
+      ImGui::Spacing();
+
+      ImGui::Separator();
+
+      ImGui::Spacing();
+
+      if (ImGui::Button(settings_button_label_.c_str())) {
+        settings_button_pressed_ = !settings_button_pressed_;
+        settings_window_pos_reset_ = true;
+      }
+
+      if (settings_button_pressed_) {
+        if (settings_window_pos_reset_) {
+          const ImGuiViewport *viewport = ImGui::GetMainViewport();
+          if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+            ImGui::SetNextWindowPos(
+                ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                        SETTINGS_WINDOW_WIDTH_CN) /
+                           2,
+                       (viewport->WorkSize.y - viewport->WorkPos.y -
+                        SETTINGS_WINDOW_HEIGHT_CN) /
+                           2));
+
+            ImGui::SetNextWindowSize(
+                ImVec2(SETTINGS_WINDOW_WIDTH_CN, SETTINGS_WINDOW_HEIGHT_CN));
+          } else {
+            ImGui::SetNextWindowPos(
+                ImVec2((viewport->WorkSize.x - viewport->WorkPos.x -
+                        SETTINGS_WINDOW_WIDTH_EN) /
+                           2,
+                       (viewport->WorkSize.y - viewport->WorkPos.y -
+                        SETTINGS_WINDOW_HEIGHT_EN) /
+                           2));
+
+            ImGui::SetNextWindowSize(
+                ImVec2(SETTINGS_WINDOW_WIDTH_EN, SETTINGS_WINDOW_HEIGHT_EN));
+          }
+
+          settings_window_pos_reset_ = false;
+        }
+
+        // Settings
+        ImGui::Begin(
+            localization::settings[localization_language_index_].c_str(),
+            nullptr,
+            ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                ImGuiWindowFlags_NoSavedSettings);
+
+        {
+          const char *language_items[] = {
+              localization::language_zh[localization_language_index_].c_str(),
+              localization::language_en[localization_language_index_].c_str()};
+
+          ImGui::SetCursorPosY(32);
+          ImGui::Text(
+              localization::language[localization_language_index_].c_str());
+          if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+            ImGui::SetCursorPosX(LANGUAGE_SELECT_WINDOW_PADDING_CN);
+          } else {
+            ImGui::SetCursorPosX(LANGUAGE_SELECT_WINDOW_PADDING_EN);
+          }
+          ImGui::SetCursorPosY(30);
+          ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);
+
+          ImGui::Combo("##language", &language_button_value_, language_items,
+                       IM_ARRAYSIZE(language_items));
+        }
+
+        ImGui::Separator();
+
+        {
+          const char *video_quality_items[] = {
+              localization::video_quality_high[localization_language_index_]
+                  .c_str(),
+              localization::video_quality_medium[localization_language_index_]
+                  .c_str(),
+              localization::video_quality_low[localization_language_index_]
+                  .c_str()};
+
+          ImGui::SetCursorPosY(62);
+          ImGui::Text(localization::video_quality[localization_language_index_]
+                          .c_str());
+
+          if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+            ImGui::SetCursorPosX(VIDEO_QUALITY_SELECT_WINDOW_PADDING_CN);
+          } else {
+            ImGui::SetCursorPosX(VIDEO_QUALITY_SELECT_WINDOW_PADDING_EN);
+          }
+          ImGui::SetCursorPosY(60);
+          ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);
+
+          ImGui::Combo("##video_quality", &video_quality_button_value_,
+                       video_quality_items, IM_ARRAYSIZE(video_quality_items));
+        }
+
+        ImGui::Separator();
+
+        {
+          const char *video_encode_format_items[] = {
+              localization::av1[localization_language_index_].c_str(),
+              localization::h264[localization_language_index_].c_str()};
+
+          ImGui::SetCursorPosY(92);
+          ImGui::Text(
+              localization::video_encode_format[localization_language_index_]
+                  .c_str());
+
+          if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+            ImGui::SetCursorPosX(VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_CN);
+          } else {
+            ImGui::SetCursorPosX(VIDEO_ENCODE_FORMAT_SELECT_WINDOW_PADDING_EN);
+          }
+          ImGui::SetCursorPosY(90);
+          ImGui::SetNextItemWidth(SETTINGS_SELECT_WINDOW_WIDTH);
+
+          ImGui::Combo("##video_encode_format",
+                       &video_encode_format_button_value_,
+                       video_encode_format_items,
+                       IM_ARRAYSIZE(video_encode_format_items));
+        }
+
+        ImGui::Separator();
+
+        {
+          ImGui::SetCursorPosY(122);
+          ImGui::Text(localization::enable_hardware_video_codec
+                          [localization_language_index_]
+                              .c_str());
+
+          if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+            ImGui::SetCursorPosX(
+                ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_CN);
+          } else {
+            ImGui::SetCursorPosX(
+                ENABLE_HARDWARE_VIDEO_CODEC_CHECKBOX_PADDING_EN);
+          }
+          ImGui::SetCursorPosY(120);
+          ImGui::Checkbox("##enable_hardware_video_codec",
+                          &enable_hardware_video_codec_);
+        }
+
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(SETTINGS_OK_BUTTON_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(SETTINGS_OK_BUTTON_PADDING_EN);
+        }
+        ImGui::SetCursorPosY(160.0f);
+
+        // OK
+        if (ImGui::Button(
+                localization::ok[localization_language_index_].c_str())) {
+          settings_button_pressed_ = false;
+
+          // Language
+          if (language_button_value_ == 0) {
+            config_center_.SetLanguage(ConfigCenter::LANGUAGE::CHINESE);
+          } else {
+            config_center_.SetLanguage(ConfigCenter::LANGUAGE::ENGLISH);
+          }
+          language_button_value_last_ = language_button_value_;
+          localization_language_ =
+              (ConfigCenter::LANGUAGE)language_button_value_;
+          localization_language_index_ = language_button_value_;
+          LOG_INFO("Set localization language: {}",
+                   localization_language_index_ == 0 ? "zh" : "en");
+
+          // Video quality
+          if (video_quality_button_value_ == 0) {
+            config_center_.SetVideoQuality(ConfigCenter::VIDEO_QUALITY::HIGH);
+          } else if (video_quality_button_value_ == 1) {
+            config_center_.SetVideoQuality(ConfigCenter::VIDEO_QUALITY::MEDIUM);
+          } else {
+            config_center_.SetVideoQuality(ConfigCenter::VIDEO_QUALITY::LOW);
+          }
+          video_quality_button_value_last_ = video_quality_button_value_;
+
+          // Video encode format
+          if (video_encode_format_button_value_ == 0) {
+            config_center_.SetVideoEncodeFormat(
+                ConfigCenter::VIDEO_ENCODE_FORMAT::AV1);
+          } else if (video_encode_format_button_value_ == 1) {
+            config_center_.SetVideoEncodeFormat(
+                ConfigCenter::VIDEO_ENCODE_FORMAT::H264);
+          }
+          video_encode_format_button_value_last_ =
+              video_encode_format_button_value_;
+
+          // Hardware video codec
+          if (enable_hardware_video_codec_) {
+            config_center_.SetHardwareVideoCodec(true);
+          } else {
+            config_center_.SetHardwareVideoCodec(false);
+          }
+          enable_hardware_video_codec_last_ = enable_hardware_video_codec_;
+
+          SaveSettingsIntoCacheFile();
+          settings_window_pos_reset_ = true;
+
+          // Recreate peer instance
+          LoadSettingsIntoCacheFile();
+
+          // Recreate peer instance
+          {
+            DestroyPeer(peer_);
+            CreateConnectionPeer();
+            LOG_INFO("Recreate peer instance successful");
+          }
+        }
+        ImGui::SameLine();
+        // Cancel
+        if (ImGui::Button(
+                localization::cancel[localization_language_index_].c_str())) {
+          settings_button_pressed_ = false;
+          if (language_button_value_ != language_button_value_last_) {
+            language_button_value_ = language_button_value_last_;
+          }
+
+          if (video_quality_button_value_ != video_quality_button_value_last_) {
+            video_quality_button_value_ = video_quality_button_value_last_;
+          }
+
+          if (video_encode_format_button_value_ !=
+              video_encode_format_button_value_last_) {
+            video_encode_format_button_value_ =
+                video_encode_format_button_value_last_;
+          }
+
+          if (enable_hardware_video_codec_ !=
+              enable_hardware_video_codec_last_) {
+            enable_hardware_video_codec_ = enable_hardware_video_codec_last_;
+          }
+
+          settings_window_pos_reset_ = true;
+        }
+
+        ImGui::End();
+      }
+
+      ImGui::End();
+    }
+
+    {
+      ImGui::SetNextWindowPos(ImVec2(MENU_WINDOW_WIDTH_CN, 0),
+                              ImGuiCond_Always);
+      if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+        ImGui::SetNextWindowSize(
+            ImVec2(MENU_WINDOW_WIDTH_CN, MENU_WINDOW_HEIGHT_CN));
+      } else {
+        ImGui::SetNextWindowSize(
+            ImVec2(MENU_WINDOW_WIDTH_EN, MENU_WINDOW_HEIGHT_EN));
+      }
+      ImGui::Begin("test", nullptr,
+                   ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse |
+                       ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoTitleBar);
+
+      ImGui::SetWindowFontScale(0.5f);
+      ImGui::Text(u8"Զ<EFBFBD>̿<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
+
+      ImGui::Spacing();
+      ImGui::Separator();
+      ImGui::Spacing();
+
+      {
+        ImGui::Text(
+            localization::remote_id[localization_language_index_].c_str());
+
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(INPUT_WINDOW_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(INPUT_WINDOW_PADDING_EN);
+        }
+        ImGui::SetWindowFontScale(1.0f);
+        ImGui::InputTextWithHint("##remote_id_", mac_addr_str_.c_str(),
+                                 remote_id_, IM_ARRAYSIZE(remote_id_),
+                                 ImGuiInputTextFlags_CharsUppercase |
+                                     ImGuiInputTextFlags_CharsNoBlank);
+
+        ImGui::Spacing();
+        ImGui::SetWindowFontScale(0.5f);
+        ImGui::Text(
+            localization::password[localization_language_index_].c_str());
+
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth(IPUT_WINDOW_WIDTH);
+
+        if (ConfigCenter::LANGUAGE::CHINESE == localization_language_) {
+          ImGui::SetCursorPosX(INPUT_WINDOW_PADDING_CN);
+        } else {
+          ImGui::SetCursorPosX(INPUT_WINDOW_PADDING_EN);
+        }
+        ImGui::SetWindowFontScale(1.0f);
+        ImGui::InputTextWithHint(
+            "##client_pwd",
+            localization::max_password_len[localization_language_index_]
+                .c_str(),
+            client_password_, IM_ARRAYSIZE(client_password_),
+            ImGuiInputTextFlags_CharsNoBlank);
+
+        ImGui::Spacing();
+        ImGui::Separator();
+        ImGui::Spacing();
+
+        if (ImGui::Button(connect_button_label_.c_str(),
+                          ImVec2(MENU_WINDOW_WIDTH_CN - 16, 40)) ||
+            rejoin_) {
+          int ret = -1;
+          if ("SignalConnected" == signal_status_str_) {
+            if (connect_button_label_ ==
+                    localization::connect[localization_language_index_] &&
+                !connection_established_ && strlen(remote_id_)) {
+              if (remote_id_ == local_id_ && !peer_reserved_) {
+                peer_reserved_ = CreatePeer(&params_);
+                if (peer_reserved_) {
+                  LOG_INFO("Create peer[reserved] instance successful");
+                  std::string local_id = "C-" + mac_addr_str_;
+                  Init(peer_reserved_, local_id.c_str());
+                  LOG_INFO("Peer[reserved] init finish");
+                } else {
+                  LOG_INFO("Create peer[reserved] instance failed");
+                }
+              }
+              ret = JoinConnection(peer_reserved_ ? peer_reserved_ : peer_,
+                                   remote_id_, client_password_);
+              if (0 == ret) {
+                if (!peer_reserved_) {
+                  is_client_mode_ = true;
+                }
+                rejoin_ = false;
+              } else {
+                rejoin_ = true;
+              }
+
+            } else if (connect_button_label_ ==
+                           localization::disconnect
+                               [localization_language_index_] &&
+                       connection_established_) {
+              ret = LeaveConnection(peer_reserved_ ? peer_reserved_ : peer_);
+
+              if (0 == ret) {
+                rejoin_ = false;
+                memset(audio_buffer_, 0, 960);
+                connection_established_ = false;
+                received_frame_ = false;
+                is_client_mode_ = false;
+              }
+            }
+
+            if (0 == ret) {
+              connect_button_pressed_ = !connect_button_pressed_;
+              connect_button_label_ =
+                  connect_button_pressed_
+                      ? localization::disconnect[localization_language_index_]
+                      : localization::connect[localization_language_index_];
+            }
+          }
+        }
+      }
+      ImGui::End();
+    }
+
+    SDL_Event event;
+    while (SDL_PollEvent(&event)) {
+      ImGui_ImplSDL2_ProcessEvent(&event);
+      if (event.type == SDL_QUIT) {
+        exit_ = true;
+      } else if (event.type == SDL_WINDOWEVENT &&
+                 event.window.event == SDL_WINDOWEVENT_RESIZED) {
+        int window_w_last = main_window_width_;
+        int window_h_last = main_window_height_;
+
+        SDL_GetWindowSize(main_window_, &main_window_width_,
+                          &main_window_height_);
+
+        int w_change_ratio = abs(main_window_width_ - window_w_last) / 16;
+        int h_change_ratio = abs(main_window_height_ - window_h_last) / 9;
+
+        if (w_change_ratio > h_change_ratio) {
+          main_window_height_ = main_window_width_ * 9 / 16;
+        } else {
+          main_window_width_ = main_window_height_ * 16 / 9;
+        }
+
+        SDL_SetWindowSize(main_window_, main_window_width_,
+                          main_window_height_);
+      } else if (event.type == SDL_WINDOWEVENT &&
+                 event.window.event == SDL_WINDOWEVENT_CLOSE &&
+                 event.window.windowID == SDL_GetWindowID(main_window_)) {
+        exit_ = true;
+      } else if (event.type == REFRESH_EVENT) {
+        sdl_rect_.x = 0;
+        sdl_rect_.y = 0;
+        sdl_rect_.w = main_window_width_;
+        sdl_rect_.h = main_window_height_;
+
+        // SDL_UpdateTexture(sdl_texture_, NULL, dst_buffer_, 1280);
+      } else {
+        if (connection_established_) {
+          ProcessMouseKeyEven(event);
+        }
+      }
+    }
+
+    // Rendering
+    ImGui::Render();
+    SDL_RenderSetScale(sdl_renderer_, io.DisplayFramebufferScale.x,
+                       io.DisplayFramebufferScale.y);
+    SDL_SetRenderDrawColor(sdl_renderer_, 255, 255, 255, 255);
+    SDL_RenderClear(sdl_renderer_);
+    ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData());
+    SDL_RenderPresent(sdl_renderer_);
+
+    frame_count_++;
+    end_time_ = SDL_GetTicks();
+    elapsed_time_ = end_time_ - start_time_;
+    if (elapsed_time_ >= 1000) {
+      fps_ = frame_count_ / (elapsed_time_ / 1000);
+      frame_count_ = 0;
+      window_title = "Remote Desk Client FPS [" + std::to_string(fps_) +
+                     "] status [" + connection_status_str_ + "|" +
+                     connection_status_str_ + "]";
+      // For MacOS, UI frameworks can only be called from the main thread
+      SDL_SetWindowTitle(main_window_, window_title.c_str());
+      start_time_ = end_time_;
+    }
+  }
+
+  // Cleanup
+  if (is_create_connection_) {
+    LeaveConnection(peer_);
+    is_client_mode_ = false;
+  }
+
+  if (peer_) {
+    DestroyPeer(peer_);
+  }
+
+  if (peer_reserved_) {
+    DestroyPeer(peer_reserved_);
+  }
+
+  SDL_CloseAudioDevice(output_dev_);
+  SDL_CloseAudioDevice(input_dev_);
+
+  ImGui_ImplSDLRenderer2_Shutdown();
+  ImGui_ImplSDL2_Shutdown();
+  ImGui::DestroyContext();
+
+  SDL_DestroyRenderer(sdl_renderer_);
+  SDL_DestroyWindow(main_window_);
+
+  SDL_CloseAudio();
+  SDL_Quit();
+
+  return 0;
+}

src/multiple_windows/main_window.h

@@ -0,0 +1,191 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-05-29
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _MAIN_WINDOW_H_
+#define _MAIN_WINDOW_H_
+
+#include <SDL.h>
+
+#include <atomic>
+#include <chrono>
+#include <string>
+
+#include "../../thirdparty/projectx/src/interface/x.h"
+#include "config_center.h"
+#include "device_controller_factory.h"
+#include "imgui.h"
+#include "imgui_impl_sdl2.h"
+#include "imgui_impl_sdlrenderer2.h"
+#include "screen_capturer_factory.h"
+
+class MainWindow {
+ public:
+  MainWindow();
+  ~MainWindow();
+
+ public:
+  int Run();
+
+ public:
+  static void OnReceiveVideoBufferCb(const char *data, size_t size,
+                                     const char *user_id, size_t user_id_size,
+                                     void *user_data);
+
+  static void OnReceiveAudioBufferCb(const char *data, size_t size,
+                                     const char *user_id, size_t user_id_size,
+                                     void *user_data);
+
+  static void OnReceiveDataBufferCb(const char *data, size_t size,
+                                    const char *user_id, size_t user_id_size,
+                                    void *user_data);
+
+  static void OnSignalStatusCb(SignalStatus status, void *user_data);
+
+  static void OnConnectionStatusCb(ConnectionStatus status, void *user_data);
+
+ private:
+  int ProcessMouseKeyEven(SDL_Event &ev);
+  void SdlCaptureAudioIn(void *userdata, Uint8 *stream, int len);
+  void SdlCaptureAudioOut(void *userdata, Uint8 *stream, int len);
+
+ private:
+  int SaveSettingsIntoCacheFile();
+  int LoadSettingsIntoCacheFile();
+
+  int StartScreenCapture();
+  int StopScreenCapture();
+
+  int StartMouseControl();
+  int StopMouseControl();
+
+  int CreateConnectionPeer();
+
+ private:
+  typedef struct {
+    char password[7];
+    int language;
+    int video_quality;
+    int video_encode_format;
+    bool enable_hardware_video_codec;
+  } CDCache;
+
+ private:
+  FILE *cd_cache_file_ = nullptr;
+  CDCache cd_cache_;
+
+  ConfigCenter config_center_;
+
+  ConfigCenter::LANGUAGE localization_language_ =
+      ConfigCenter::LANGUAGE::CHINESE;
+
+  int localization_language_index_ = -1;
+  int localization_language_index_last_ = -1;
+
+ private:
+  std::string window_title = "Remote Desk Client";
+  std::string mac_addr_str_ = "";
+  std::string connect_button_label_ = "Connect";
+  std::string fullscreen_button_label_ = "Fullscreen";
+  std::string mouse_control_button_label_ = "Mouse Control";
+  std::string settings_button_label_ = "Setting";
+  char input_password_tmp_[7] = "";
+  char input_password_[7] = "";
+  std::string local_id_ = "";
+  char remote_id_[20] = "";
+  char client_password_[20] = "";
+  bool is_client_mode_ = false;
+
+ private:
+  int screen_width_ = 1280;
+  int screen_height_ = 720;
+  int main_window_width_ = 640;
+  int main_window_height_ = 360;
+  int main_window_width_before_fullscreen_ = 1280;
+  int main_window_height_before_fullscreen_ = 720;
+
+  int texture_width_ = 1280;
+  int texture_height_ = 720;
+
+  SDL_Texture *sdl_texture_ = nullptr;
+  SDL_Renderer *sdl_renderer_ = nullptr;
+  SDL_Rect sdl_rect_;
+  SDL_Window *main_window_;
+  uint32_t pixformat_ = 0;
+
+  bool inited_ = false;
+  bool exit_ = false;
+  bool connection_established_ = false;
+  bool subwindow_hovered_ = false;
+  bool connect_button_pressed_ = false;
+  bool fullscreen_button_pressed_ = false;
+  bool mouse_control_button_pressed_ = false;
+  bool settings_button_pressed_ = false;
+  bool received_frame_ = false;
+  bool is_create_connection_ = false;
+  bool audio_buffer_fresh_ = false;
+  bool rejoin_ = false;
+  bool control_mouse_ = false;
+  bool show_password_ = false;
+
+  int fps_ = 0;
+  uint32_t start_time_;
+  uint32_t end_time_;
+  uint32_t elapsed_time_;
+  uint32_t frame_count_ = 0;
+
+ private:
+  ConnectionStatus connection_status_ = ConnectionStatus::Closed;
+  SignalStatus signal_status_ = SignalStatus::SignalClosed;
+  std::string signal_status_str_ = "";
+  std::string connection_status_str_ = "";
+
+ private:
+  PeerPtr *peer_ = nullptr;
+  PeerPtr *peer_reserved_ = nullptr;
+  Params params_;
+
+ private:
+  SDL_AudioDeviceID input_dev_;
+  SDL_AudioDeviceID output_dev_;
+  unsigned char audio_buffer_[960];
+  int audio_len_ = 0;
+  char *nv12_buffer_ = nullptr;
+  unsigned char *dst_buffer_ = new unsigned char[1280 * 720 * 3];
+
+ private:
+  ScreenCapturerFactory *screen_capturer_factory_ = nullptr;
+  ScreenCapturer *screen_capturer_ = nullptr;
+  DeviceControllerFactory *device_controller_factory_ = nullptr;
+  MouseController *mouse_controller_ = nullptr;
+
+#ifdef __linux__
+  std::chrono::_V2::system_clock::time_point last_frame_time_;
+#else
+  std::chrono::steady_clock::time_point last_frame_time_;
+#endif
+
+ private:
+  int language_button_value_ = 0;
+  int video_quality_button_value_ = 0;
+  int video_encode_format_button_value_ = 0;
+  bool enable_hardware_video_codec_ = false;
+
+  int language_button_value_last_ = 0;
+  int video_quality_button_value_last_ = 0;
+  int video_encode_format_button_value_last_ = 0;
+  bool enable_hardware_video_codec_last_ = false;
+
+ private:
+  std::atomic<bool> start_screen_capture_{false};
+  std::atomic<bool> start_mouse_control_{false};
+  std::atomic<bool> screen_capture_is_started_{false};
+  std::atomic<bool> mouse_control_is_started_{false};
+
+ private:
+  bool settings_window_pos_reset_ = true;
+};
+
+#endif

src/multiple_windows/sub_window.h

@@ -0,0 +1,10 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2024-06-17
+ * Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _SUB_WINDOW_H_
+#define _SUB_WINDOW_H_
+
+#endif

src/single_window/main_window_callback_func.cpp

@@ -0,0 +1,216 @@
+#include "device_controller.h"
+#include "localization.h"
+#include "main_window.h"
+
+// Refresh Event
+#define REFRESH_EVENT (SDL_USEREVENT + 1)
+#define NV12_BUFFER_SIZE 1280 * 720 * 3 / 2
+
+#ifdef REMOTE_DESK_DEBUG
+#else
+#define MOUSE_CONTROL 1
+#endif
+
+int MainWindow::ProcessMouseKeyEven(SDL_Event &ev) {
+  if (!control_mouse_) {
+    return 0;
+  }
+
+  float ratio = (float)(1280.0 / main_window_width_);
+
+  RemoteAction remote_action;
+  remote_action.m.x = (size_t)(ev.button.x * ratio);
+  remote_action.m.y = (size_t)(ev.button.y * ratio);
+
+  if (SDL_KEYDOWN == ev.type)  // SDL_KEYUP
+  {
+    // printf("SDLK_DOWN: %d\n", SDL_KeyCode(ev.key.keysym.sym));
+    if (SDLK_DOWN == ev.key.keysym.sym) {
+      // printf("SDLK_DOWN  \n");
+
+    } else if (SDLK_UP == ev.key.keysym.sym) {
+      // printf("SDLK_UP  \n");
+
+    } else if (SDLK_LEFT == ev.key.keysym.sym) {
+      // printf("SDLK_LEFT  \n");
+
+    } else if (SDLK_RIGHT == ev.key.keysym.sym) {
+      // printf("SDLK_RIGHT  \n");
+    }
+  } else if (SDL_MOUSEBUTTONDOWN == ev.type) {
+    remote_action.type = ControlType::mouse;
+    if (SDL_BUTTON_LEFT == ev.button.button) {
+      remote_action.m.flag = MouseFlag::left_down;
+    } else if (SDL_BUTTON_RIGHT == ev.button.button) {
+      remote_action.m.flag = MouseFlag::right_down;
+    }
+    if (subwindow_hovered_) {
+      remote_action.m.flag = MouseFlag::move;
+    }
+    SendData(peer_, DATA_TYPE::DATA, (const char *)&remote_action,
+             sizeof(remote_action));
+  } else if (SDL_MOUSEBUTTONUP == ev.type) {
+    remote_action.type = ControlType::mouse;
+    if (SDL_BUTTON_LEFT == ev.button.button) {
+      remote_action.m.flag = MouseFlag::left_up;
+    } else if (SDL_BUTTON_RIGHT == ev.button.button) {
+      remote_action.m.flag = MouseFlag::right_up;
+    }
+    if (subwindow_hovered_) {
+      remote_action.m.flag = MouseFlag::move;
+    }
+    SendData(peer_, DATA_TYPE::DATA, (const char *)&remote_action,
+             sizeof(remote_action));
+  } else if (SDL_MOUSEMOTION == ev.type) {
+    remote_action.type = ControlType::mouse;
+    remote_action.m.flag = MouseFlag::move;
+    SendData(peer_, DATA_TYPE::DATA, (const char *)&remote_action,
+             sizeof(remote_action));
+  } else if (SDL_QUIT == ev.type) {
+    SDL_Event event;
+    event.type = SDL_QUIT;
+    SDL_PushEvent(&event);
+    printf("SDL_QUIT\n");
+    return 0;
+  }
+
+  return 0;
+}
+
+void MainWindow::SdlCaptureAudioIn(void *userdata, Uint8 *stream, int len) {
+  if (1) {
+    if ("Connected" == connection_status_str_) {
+      SendData(peer_, DATA_TYPE::AUDIO, (const char *)stream, len);
+    }
+  } else {
+    memcpy(audio_buffer_, stream, len);
+    audio_len_ = len;
+    SDL_Delay(10);
+    audio_buffer_fresh_ = true;
+  }
+}
+
+void MainWindow::SdlCaptureAudioOut(void *userdata, Uint8 *stream, int len) {
+  if (!audio_buffer_fresh_) {
+    return;
+  }
+
+  SDL_memset(stream, 0, len);
+
+  if (audio_len_ == 0) {
+    return;
+  } else {
+  }
+
+  len = (len > audio_len_ ? audio_len_ : len);
+  SDL_MixAudioFormat(stream, audio_buffer_, AUDIO_S16LSB, len,
+                     SDL_MIX_MAXVOLUME);
+  audio_buffer_fresh_ = false;
+}
+
+void MainWindow::OnReceiveVideoBufferCb(const char *data, size_t size,
+                                        const char *user_id,
+                                        size_t user_id_size, void *user_data) {
+  MainWindow *main_window = (MainWindow *)user_data;
+  if (main_window->connection_established_) {
+    memcpy(main_window->dst_buffer_, data, size);
+    SDL_Event event;
+    event.type = REFRESH_EVENT;
+    SDL_PushEvent(&event);
+    main_window->received_frame_ = true;
+  }
+}
+
+void MainWindow::OnReceiveAudioBufferCb(const char *data, size_t size,
+                                        const char *user_id,
+                                        size_t user_id_size, void *user_data) {
+  MainWindow *main_window = (MainWindow *)user_data;
+  main_window->audio_buffer_fresh_ = true;
+  SDL_QueueAudio(main_window->output_dev_, data, (uint32_t)size);
+}
+
+void MainWindow::OnReceiveDataBufferCb(const char *data, size_t size,
+                                       const char *user_id, size_t user_id_size,
+                                       void *user_data) {
+  MainWindow *main_window = (MainWindow *)user_data;
+  std::string user(user_id, user_id_size);
+  RemoteAction remote_action;
+  memcpy(&remote_action, data, sizeof(remote_action));
+
+#if MOUSE_CONTROL
+  if (main_window->mouse_controller_) {
+    main_window->mouse_controller_->SendCommand(remote_action);
+  }
+#endif
+}
+
+void MainWindow::OnSignalStatusCb(SignalStatus status, void *user_data) {
+  MainWindow *main_window = (MainWindow *)user_data;
+  main_window->signal_status_ = status;
+  if (SignalStatus::SignalConnecting == status) {
+    main_window->signal_status_str_ = "SignalConnecting";
+  } else if (SignalStatus::SignalConnected == status) {
+    main_window->signal_status_str_ = "SignalConnected";
+  } else if (SignalStatus::SignalFailed == status) {
+    main_window->signal_status_str_ = "SignalFailed";
+  } else if (SignalStatus::SignalClosed == status) {
+    main_window->signal_status_str_ = "SignalClosed";
+  } else if (SignalStatus::SignalReconnecting == status) {
+    main_window->signal_status_str_ = "SignalReconnecting";
+  }
+}
+
+void MainWindow::OnConnectionStatusCb(ConnectionStatus status,
+                                      void *user_data) {
+  MainWindow *main_window = (MainWindow *)user_data;
+  main_window->connection_status_ = status;
+  if (ConnectionStatus::Connecting == status) {
+    main_window->connection_status_str_ = "Connecting";
+  } else if (ConnectionStatus::Connected == status) {
+    main_window->connection_status_str_ = "Connected";
+    main_window->connection_established_ = true;
+    if (!main_window->is_client_mode_) {
+      main_window->start_screen_capture_ = true;
+      main_window->start_mouse_control_ = true;
+    }
+  } else if (ConnectionStatus::Disconnected == status) {
+    main_window->connection_status_str_ = "Disconnected";
+  } else if (ConnectionStatus::Failed == status) {
+    main_window->connection_status_str_ = "Failed";
+  } else if (ConnectionStatus::Closed == status) {
+    main_window->connection_status_str_ = "Closed";
+    main_window->start_screen_capture_ = false;
+    main_window->start_mouse_control_ = false;
+    main_window->connection_established_ = false;
+    main_window->control_mouse_ = false;
+    if (main_window->dst_buffer_) {
+      memset(main_window->dst_buffer_, 0, 1280 * 720 * 3);
+      SDL_UpdateTexture(main_window->sdl_texture_, NULL,
+                        main_window->dst_buffer_, 1280);
+    }
+  } else if (ConnectionStatus::IncorrectPassword == status) {
+    main_window->connection_status_str_ = "Incorrect password";
+    if (main_window->connect_button_pressed_) {
+      main_window->connect_button_pressed_ = false;
+      main_window->connection_established_ = false;
+      main_window->connect_button_label_ =
+          main_window->connect_button_pressed_
+              ? localization::disconnect[main_window
+                                             ->localization_language_index_]
+              : localization::connect[main_window
+                                          ->localization_language_index_];
+    }
+  } else if (ConnectionStatus::NoSuchTransmissionId == status) {
+    main_window->connection_status_str_ = "No such transmission id";
+    if (main_window->connect_button_pressed_) {
+      main_window->connect_button_pressed_ = false;
+      main_window->connection_established_ = false;
+      main_window->connect_button_label_ =
+          main_window->connect_button_pressed_
+              ? localization::disconnect[main_window
+                                             ->localization_language_index_]
+              : localization::connect[main_window
+                                          ->localization_language_index_];
+    }
+  }
+}

xmake.lua

@@ -99,7 +99,7 @@ target("localization")
     set_kind("headeronly")
     add_includedirs("src/localization", {public = true})
 
-target("main_window")
+target("single_window")
     set_kind("object")
     add_deps("log", "common", "localization", "config_center", "projectx", "screen_capturer", "device_controller")
     if is_os("macosx") then
@@ -107,12 +107,23 @@ target("main_window")
     elseif is_os("linux") then
         add_packages("ffmpeg")
     end
-    add_files("src/main_window/*.cpp")
+    add_files("src/single_window/*.cpp")
-    add_includedirs("src/main_window", {public = true})
+    add_includedirs("src/single_window", {public = true})
+
+target("multiple_windows")
+    set_kind("object")
+    add_deps("log", "common", "localization", "config_center", "projectx", "screen_capturer", "device_controller")
+    if is_os("macosx") then
+        add_packages("ffmpeg")
+    elseif is_os("linux") then
+        add_packages("ffmpeg")
+    end
+    add_files("src/multiple_windows/*.cpp")
+    add_includedirs("src/multiple_windows", {public = true})
 
 target("remote_desk")
     set_kind("binary")
-    add_deps("log", "common", "main_window")
+    add_deps("log", "common", "multiple_windows")
     if is_os("macosx") then
         add_packages("ffmpeg")
     elseif is_os("linux") then