4 files changed, 88 insertions, 9 deletions

diff --git a/client/SDL/dialogs/sdl_connection_dialog.hpp b/client/SDL/dialogs/sdl_connection_dialog.hpp
index f21f538..57e5596 100644
--- a/client/SDL/dialogs/sdl_connection_dialog.hpp
+++ b/client/SDL/dialogs/sdl_connection_dialog.hpp
@@ -89,15 +89,15 @@ class SDLConnectionDialog
   private:
 	struct widget_cfg_t
 	{
-		SDL_Color fgcolor;
-		SDL_Color bgcolor;
+		SDL_Color fgcolor = {};
+		SDL_Color bgcolor = {};
 		SdlWidget widget;
 	};
 
   private:
-	rdpContext* _context;
-	SDL_Window* _window;
-	SDL_Renderer* _renderer;
+	rdpContext* _context = nullptr;
+	SDL_Window* _window = nullptr;
+	SDL_Renderer* _renderer = nullptr;
 	mutable std::mutex _mux;
 	std::string _title;
 	std::string _msg;
@@ -124,6 +124,6 @@ class SDLConnectionDialogHider
 	SDLConnectionDialog* get(rdpContext* context);
 
   private:
-	SDLConnectionDialog* _dialog;
-	bool _visible;
+	SDLConnectionDialog* _dialog = nullptr;
+	bool _visible = false;
 };
diff --git a/client/SDL/sdl_disp.cpp b/client/SDL/sdl_disp.cpp
index ffd13c8..34863ba 100644
--- a/client/SDL/sdl_disp.cpp
+++ b/client/SDL/sdl_disp.cpp
@@ -142,6 +142,8 @@ static BOOL sdl_disp_check_context(void* context, SdlContext** ppsdl, sdlDispCon
 		return FALSE;
 
 	auto sdl = get_context(context);
+	if (!sdl)
+		return FALSE;
 
 	if (!sdl->context()->settings)
 		return FALSE;
@@ -200,6 +202,9 @@ Uint32 sdlDispContext::OnTimer(Uint32 interval, void* param)
 		return 0;
 
 	SdlContext* sdl = ctx->_sdl;
+	if (!sdl)
+		return 0;
+
 	sdlDispContext* sdlDisp = nullptr;
 	rdpSettings* settings = nullptr;
 
diff --git a/client/SDL/sdl_kbd.cpp b/client/SDL/sdl_kbd.cpp
index 984614e..c6e668d 100644
--- a/client/SDL/sdl_kbd.cpp
+++ b/client/SDL/sdl_kbd.cpp
@@ -488,6 +488,66 @@ uint32_t sdlInput::prefKeyValue(const std::string& key, uint32_t fallback)
 	return val;
 }
 
+std::list<std::string> sdlInput::tokenize(const std::string& data, const std::string& delimiter)
+{
+	size_t lastpos = 0;
+	size_t pos = 0;
+	std::list<std::string> list;
+	while ((pos = data.find(delimiter, lastpos)) != std::string::npos)
+	{
+		auto token = data.substr(lastpos, pos);
+		lastpos = pos + 1;
+		list.push_back(token);
+	}
+	auto token = data.substr(lastpos);
+	list.push_back(token);
+	return list;
+}
+
+bool sdlInput::extract(const std::string& token, uint32_t& key, uint32_t& value)
+{
+	int rc = sscanf(token.c_str(), "%" PRIu32 "=%" PRIu32, &key, &value);
+	if (rc != 2)
+		rc = sscanf(token.c_str(), "%" PRIx32 "=%" PRIx32 "", &key, &value);
+	if (rc != 2)
+		rc = sscanf(token.c_str(), "%" PRIu32 "=%" PRIx32, &key, &value);
+	if (rc != 2)
+		rc = sscanf(token.c_str(), "%" PRIx32 "=%" PRIu32, &key, &value);
+	return (rc == 2);
+}
+
+uint32_t sdlInput::remapScancode(uint32_t scancode)
+{
+	if (!_remapInitialized.exchange(true))
+		remapInitialize();
+	auto it = _remapList.find(scancode);
+	if (it != _remapList.end())
+		return it->second;
+	return scancode;
+}
+
+void sdlInput::remapInitialize()
+{
+	WINPR_ASSERT(_sdl);
+
+	auto context = _sdl->context();
+	WINPR_ASSERT(context);
+	auto KeyboardRemappingList =
+	    freerdp_settings_get_string(context->settings, FreeRDP_KeyboardRemappingList);
+	if (!KeyboardRemappingList)
+		return;
+
+	auto list = tokenize(KeyboardRemappingList);
+	for (auto& token : list)
+	{
+		uint32_t key = 0;
+		uint32_t value = 0;
+		if (!extract(token, key, value))
+			continue;
+		_remapList.emplace(key, value);
+	}
+}
+
 BOOL sdlInput::keyboard_handle_event(const SDL_KeyboardEvent* ev)
 {
 	WINPR_ASSERT(ev);
@@ -526,8 +586,10 @@ BOOL sdlInput::keyboard_handle_event(const SDL_KeyboardEvent* ev)
 			}
 		}
 	}
+
+	auto scancode = remapScancode(rdp_scancode);
 	return freerdp_input_send_keyboard_event_ex(_sdl->context()->input, ev->type == SDL_KEYDOWN,
-	                                            ev->repeat, rdp_scancode);
+	                                            ev->repeat, scancode);
 }
 
 BOOL sdlInput::keyboard_grab(Uint32 windowID, SDL_bool enable)
@@ -564,5 +626,4 @@ BOOL sdlInput::mouse_grab(Uint32 windowID, SDL_bool enable)
 
 sdlInput::sdlInput(SdlContext* sdl) : _sdl(sdl), _lastWindowID(UINT32_MAX)
 {
-	WINPR_ASSERT(_sdl);
 }
diff --git a/client/SDL/sdl_kbd.hpp b/client/SDL/sdl_kbd.hpp
index 2a6c7fa..c75da4d 100644
--- a/client/SDL/sdl_kbd.hpp
+++ b/client/SDL/sdl_kbd.hpp
@@ -20,6 +20,9 @@
 #pragma once
 
 #include <string>
+#include <map>
+#include <list>
+#include <atomic>
 
 #include <winpr/wtypes.h>
 #include <freerdp/freerdp.h>
@@ -51,6 +54,16 @@ class sdlInput
 	static uint32_t prefKeyValue(const std::string& key, uint32_t fallback = SDL_SCANCODE_UNKNOWN);
 
   private:
+	static std::list<std::string> tokenize(const std::string& data,
+	                                       const std::string& delimiter = ",");
+	static bool extract(const std::string& token, uint32_t& key, uint32_t& value);
+
+	uint32_t remapScancode(uint32_t scancode);
+	void remapInitialize();
+
+  private:
 	SdlContext* _sdl;
 	Uint32 _lastWindowID;
+	std::map<uint32_t, uint32_t> _remapList;
+	std::atomic<bool> _remapInitialized = false;
 };