[perf] reduce desktop build dependencies and binary size

apps/desktop/src/gui/application/gui_application.cpp

@@ -5,6 +5,7 @@
 #include <SDL3/SDL.h>
 #include <openssl/rand.h>
 #include <slint.h>
+#include <nlohmann/json.hpp>
 #include <tinyfiledialogs.h>
 
 #include <algorithm>

apps/desktop/src/gui/features/clipboard/clipboard_controller.cpp

@@ -1,5 +1,9 @@
 #include "features/clipboard/clipboard_controller.h"
 
+#include <SDL3/SDL_clipboard.h>
+#include <SDL3/SDL_error.h>
+#include <SDL3/SDL_events.h>
+
 #include <cstring>
 #include <shared_mutex>
 #include <utility>

apps/desktop/src/gui/features/clipboard/clipboard_controller.h

@@ -1,7 +1,11 @@
-#ifndef CROSSDESK_GUI_CLIPBOARD_CONTROLLER_H_
-#define CROSSDESK_GUI_CLIPBOARD_CONTROLLER_H_
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-09-25
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
 
-#include <SDL3/SDL.h>
+#ifndef _CLIPBOARD_CONTROLLER_H_
+#define _CLIPBOARD_CONTROLLER_H_
 
 #include <atomic>
 #include <cstddef>
@@ -42,4 +46,4 @@ private:
 
 } // namespace crossdesk
 
-#endif // CROSSDESK_GUI_CLIPBOARD_CONTROLLER_H_
+#endif // _CLIPBOARD_CONTROLLER_H_

apps/desktop/src/gui/features/devices/session_device_manager.cpp

@@ -1,5 +1,9 @@
 #include "features/devices/session_device_manager.h"
 
+#include <SDL3/SDL_audio.h>
+#include <SDL3/SDL_error.h>
+#include <SDL3/SDL_init.h>
+
 #include <display_stream_id.h>
 #include <remote_action.h>
 
@@ -8,6 +12,8 @@
 #include <cstdlib>
 #include <utility>
 
+#include "device_controller_factory.h"
+#include "screen_capturer_factory.h"
 #include "platform.h"
 #include "rd_log.h"
 #include "runtime/gui_runtime.h"

apps/desktop/src/gui/features/devices/session_device_manager.h

@@ -8,8 +8,6 @@
 #define _SESSION_DEVICE_MANAGER_H_
 
 
-#include <SDL3/SDL.h>
-
 #include <atomic>
 #include <chrono>
 #include <cstddef>
@@ -22,14 +20,17 @@
 #include <remote_action.h>
 
 #include "device_controller.h"
-#include "device_controller_factory.h"
 #include "display_info.h"
-#include "screen_capturer_factory.h"
 #include "speaker_capture_controller.h"
 
+struct SDL_AudioStream;
+
 namespace crossdesk {
 
 class GuiRuntime;
+class DeviceControllerFactory;
+class ScreenCapturerFactory;
+class ScreenCapturer;
 
 // Owns media capture/playback and remote input devices for the active GUI
 // session. GuiRuntime supplies application intent; this class handles device

apps/desktop/src/gui/features/file_transfer/file_transfer_manager.h

@@ -12,7 +12,7 @@
 #include <string>
 #include <unordered_map>
 
-#include "runtime/gui_state.h"
+#include "runtime/remote_session.h"
 
 namespace crossdesk {
 

apps/desktop/src/gui/rendering/slint_video_presenter.cpp

@@ -1,4 +1,5 @@
 #include "rendering/slint_video_presenter.h"
+#include "crossdesk_ui.h"
 
 #include <libyuv.h>
 #include <slint.h>

apps/desktop/src/gui/rendering/slint_video_presenter.h

@@ -14,7 +14,13 @@
 #include <string>
 #include <vector>
 
-#include "crossdesk_ui.h"
+namespace slint {
+template <typename T> class ComponentHandle;
+}
+
+namespace crossdesk::ui {
+class StreamWindow;
+}
 
 namespace crossdesk {
 

apps/desktop/src/gui/runtime/gui_runtime.cpp

@@ -1,5 +1,7 @@
 #include "runtime/gui_runtime.h"
 
+#include <SDL3/SDL_timer.h>
+
 #include <algorithm>
 #include <chrono>
 #include <cstring>

apps/desktop/src/gui/runtime/gui_runtime.h

@@ -8,6 +8,7 @@
 #define _GUI_RUNTIME_H_
 
 #include <atomic>
+#include <cstdint>
 #include <deque>
 #include <memory>
 #include <string>
@@ -44,8 +45,8 @@ class GuiRuntime : protected gui_detail::GuiState {
   GuiRuntime();
   ~GuiRuntime();
 
-  static void SdlCaptureAudioIn(void* userdata, Uint8* stream, int len);
-  static void SdlCaptureAudioOut(void* userdata, Uint8* stream, int len);
+  static void SdlCaptureAudioIn(void* userdata, uint8_t* stream, int len);
+  static void SdlCaptureAudioOut(void* userdata, uint8_t* stream, int len);
 
   int CreateConnectionPeer();
   int ConnectTo(const std::string& remote_id, const char* password,

apps/desktop/src/gui/runtime/peer_data_callbacks.cpp

@@ -1,3 +1,5 @@
+#include <SDL3/SDL_timer.h>
+
 #include "runtime/peer_event_handler.h"
 
 #include <remote_action.h>

apps/desktop/src/gui/runtime/privacy_runtime.cpp

@@ -1,3 +1,5 @@
+#include <SDL3/SDL_timer.h>
+
 /*
  * @Author: DI JUNKUN
  * @Date: 2026-09-11