diff --git a/common/version.h b/common/version.h
index adb0688a..86192915 100644
--- a/common/version.h
+++ b/common/version.h
@@ -2,8 +2,8 @@
 
 #define MIHAJONG_MAJOR_VER 2
 #define MIHAJONG_MINOR_VER 4
-#define MIHAJONG_PATCH_VER 3
-#define MIHAJONG_VER "2.4.3"
+#define MIHAJONG_PATCH_VER 4
+#define MIHAJONG_VER "2.4.4"
 
 #define MJCORE_MAJOR_VER 2
 #define MJCORE_MINOR_VER 4
@@ -32,8 +32,8 @@
 
 #define GRAPHIC_MAJOR_VER 2
 #define GRAPHIC_MINOR_VER 4
-#define GRAPHIC_PATCH_VER 2
-#define GRAPHIC_VER "2.4.2"
+#define GRAPHIC_PATCH_VER 4
+#define GRAPHIC_VER "2.4.4"
 
 #define CONFIG_MAJOR_VER 2
 #define CONFIG_MINOR_VER 4
diff --git a/graphic/loadtex.cpp b/graphic/loadtex.cpp
index 02dd36b3..594fc9ed 100644
--- a/graphic/loadtex.cpp
+++ b/graphic/loadtex.cpp
@@ -16,7 +16,7 @@
 namespace mihajong_graphic {
 
 //namespace {
-	std::map<intptr_t, TexturePtr> Textures;
+	std::map<intptr_t, std::map<intptr_t, TexturePtr> > Textures;
 #if !defined(_WIN32) || !defined(WITH_DIRECTX)
 	std::map<TexturePtr, unsigned> TextureWidth;
 	std::map<TexturePtr, unsigned> TextureHeight;
@@ -29,11 +29,11 @@ void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource) {
 #endif
 	auto resourceID = reinterpret_cast<intptr_t>(resource);
 	assert((resourceID & 0xffff0000) == 0); // 上位ワードが0なら文字列ではなくリソース番号とみなされる(Win32APIの仕様)
-	if (Textures.find(resourceID) != Textures.end()) { // 既にロード済みのテクスチャ
+	if (Textures[reinterpret_cast<intptr_t>(device)].find(resourceID) != Textures[reinterpret_cast<intptr_t>(device)].end()) { // 既にロード済みのテクスチャ
 #if defined(_WIN32) && defined(WITH_DIRECTX)
 		Textures[resourceID]->AddRef();
 #endif
-		*texture = Textures[resourceID];
+		*texture = Textures[reinterpret_cast<intptr_t>(device)][resourceID];
 		return;
 	} else { // ロードされていない場合
 #ifdef _WIN32
@@ -46,16 +46,16 @@ void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource) {
 		DWORD pngSize = SizeofResource(GraphicDLL, Resource);
 		void* pngData = LockResource(ResourceMem);
 #if defined(_WIN32) && defined(WITH_DIRECTX)
-		Textures[resourceID] = nullptr;
+		Textures[reinterpret_cast<intptr_t>(device)][resourceID] = nullptr;
 		HRESULT result = 
 			D3DXCreateTextureFromFileInMemoryEx(device, pngData, pngSize, D3DX_DEFAULT, D3DX_DEFAULT, 0, 0,
 			D3DFMT_UNKNOWN, D3DPOOL_MANAGED, D3DX_FILTER_TRIANGLE | D3DX_FILTER_DITHER, D3DX_DEFAULT,
-			0x00000000, nullptr, nullptr, &(Textures[resourceID]));
+			0x00000000, nullptr, nullptr, &(Textures[reinterpret_cast<intptr_t>(device)][resourceID]));
 		UnlockResource(ResourceMem);
 		switch (result) {
 		case D3D_OK:
-			Textures[resourceID]->AddRef();
-			*texture = Textures[resourceID];
+			Textures[reinterpret_cast<intptr_t>(device)][resourceID]->AddRef();
+			*texture = Textures[reinterpret_cast<intptr_t>(device)][resourceID];
 			return; // Congratulations, your texture has been loaded.
 		case D3DERR_NOTAVAILABLE:
 			throw TextureCreationError("", resourceID);
@@ -71,12 +71,12 @@ void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource) {
 			throw TextureCreationError("原因不明のエラーです。", resourceID);
 		}
 #else
-		Textures[resourceID] = 0;
+		Textures[reinterpret_cast<intptr_t>(device)][resourceID] = 0;
 		glEnable(GL_TEXTURE_2D);
-		glGenTextures(1, &Textures[resourceID]);
-		TextureWidth[Textures[resourceID]] =
-		TextureHeight[Textures[resourceID]] = 0;
-		glBindTexture(GL_TEXTURE_2D, Textures[resourceID]);
+		glGenTextures(1, &Textures[reinterpret_cast<intptr_t>(device)][resourceID]);
+		TextureWidth[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] =
+		TextureHeight[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] = 0;
+		glBindTexture(GL_TEXTURE_2D, Textures[reinterpret_cast<intptr_t>(device)][resourceID]);
 		HGLOBAL resBuf = GlobalAlloc(GMEM_MOVEABLE, pngSize);
 		void* pResBuf = GlobalLock(resBuf);
 		Bitmap* bitmap = nullptr;
@@ -95,8 +95,8 @@ void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource) {
 				glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, data.Width, data.Height, 0,
 					GL_BGRA_EXT, GL_UNSIGNED_BYTE, data.Scan0);
 				bitmap->UnlockBits(&data);
-				TextureWidth[Textures[resourceID]] = data.Width;
-				TextureHeight[Textures[resourceID]] = data.Height;
+				TextureWidth[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] = data.Width;
+				TextureHeight[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] = data.Height;
 			}
 		}
 		glBindTexture(GL_TEXTURE_2D, 0);
@@ -105,17 +105,17 @@ void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource) {
 		UnlockResource(ResourceMem);
 		if (stream) stream->Release();
 		delete bitmap;
-		*texture = Textures[resourceID];
+		*texture = Textures[reinterpret_cast<intptr_t>(device)][resourceID];
 		return;
 #endif
 #else /* _WIN32 */
 		/* テクスチャの仮初期化 */
-		Textures[resourceID] = 0;
+		Textures[reinterpret_cast<intptr_t>(device)][resourceID] = 0;
 		glEnable(GL_TEXTURE_2D);
-		glGenTextures(1, &Textures[resourceID]);
-		TextureWidth[Textures[resourceID]] =
-		TextureHeight[Textures[resourceID]] = 0;
-		glBindTexture(GL_TEXTURE_2D, Textures[resourceID]);
+		glGenTextures(1, &Textures[reinterpret_cast<intptr_t>(device)][resourceID]);
+		TextureWidth[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] =
+		TextureHeight[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] = 0;
+		glBindTexture(GL_TEXTURE_2D, Textures[reinterpret_cast<intptr_t>(device)][resourceID]);
 		/* ファイルをオープン */
 		const std::string fileName = dataFileName(resourceID);
 		FILE* pngFile = fopen(fileName.c_str(), "rb");
@@ -179,14 +179,14 @@ void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource) {
 				throw TextureCreationError(fileName + std::string(" にアルファチャンネルがありません"));
 			}
 		}
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
 		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, pngWidth, pngHeight, 0,
 			GL_RGBA, GL_UNSIGNED_BYTE, imageDat);
-		TextureWidth[Textures[resourceID]] = pngWidth;
-		TextureHeight[Textures[resourceID]] = pngHeight;
+		TextureWidth[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] = pngWidth;
+		TextureHeight[Textures[reinterpret_cast<intptr_t>(device)][resourceID]] = pngHeight;
 		/* 解放 */
 		delete[] imageDat;
 		png_destroy_read_struct(&pngPtr, &infoPtr, nullptr);
@@ -196,19 +196,54 @@ void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource) {
 	}
 }
 
+void PreloadTextures(DevicePtr device) { // テクスチャの先行読み込み
+	constexpr intptr_t textureList[] = {
+		IDB_PNG_TBLBAIZE,
+		IDB_PNG_TBLBORDER,
+		IDB_PNG_SDBAR,
+		IDB_PNG_TILE,
+		IDB_PNG_FONT,
+		IDB_PNG_TITLE,
+		IDB_PNG_BUTTON,
+		IDB_PNG_FONT_HUGE,
+		IDB_PNG_DICE,
+		IDB_PNG_FONT_SMALL,
+		IDB_PNG_TENBOU,
+		IDB_PNG_CHICHAMARK,
+		IDB_PNG_SCORE_INDICATOR,
+		IDB_PNG_CALL_TEXT,
+		IDB_PNG_CALL_DIGITS,
+		IDB_PNG_AGARI_WINDOW,
+		IDB_PNG_SCORE_DIGITS,
+		IDB_PNG_CHECKBOX,
+		IDB_PNG_TILE_BLACK,
+		IDB_PNG_MOON_CLOCK,
+		IDB_PNG_SPLASH_SCREEN,
+		IDB_PNG_TITLE_BACKGROUND,
+		0, // sentinel
+	};
+	TexturePtr dummyTexture;
+	for (const intptr_t* i = textureList; *i != 0; ++i)
+		LoadTexture(device, &dummyTexture, MAKEINTRESOURCE(*i));
+}
+
 void UnloadAllTextures() {
 #if defined(_WIN32) && defined(WITH_DIRECTX)
-	for (const auto& k : Textures) {
-		ULONG refs = k.second->Release();
-		CodeConv::tostringstream o;
-		o << _T("UnloadAllTextures(): Texture resource #") << k.first << _T(": remaining number of refs is ") << refs << std::endl;
-		OutputDebugString(o.str().c_str());
+	for (const auto& d : Textures) {
+		for (const auto& k : d.second) {
+			ULONG refs = k.second->Release();
+			CodeConv::tostringstream o;
+			o << _T("UnloadAllTextures(): Texture resource #") << k.first << _T(": remaining number of refs is ") << refs << std::endl;
+			OutputDebugString(o.str().c_str());
+		}
 	}
 #else
-for (const auto& k : Textures) {
-	const GLuint tx[1] = {k.second};
-	glDeleteTextures(1, tx);
-}
+	for (const auto& d : Textures) {
+		for (const auto& k : d.second) {
+			const GLuint tx[1] = {k.second};
+			glDeleteTextures(1, tx);
+		}
+	}
 #endif
 	Textures.clear();
 #if !defined(_WIN32) || !defined(WITH_DIRECTX)
diff --git a/graphic/loadtex.h b/graphic/loadtex.h
index a2dcf4b4..1edc61ec 100644
--- a/graphic/loadtex.h
+++ b/graphic/loadtex.h
@@ -8,6 +8,7 @@
 
 namespace mihajong_graphic {
 	void LoadTexture(DevicePtr device, TexturePtr* texture, LPCTSTR resource); // テクスチャ読み込み
+	void PreloadTextures(DevicePtr device); // テクスチャの先行読み込み
 	void UnloadAllTextures(); // テクスチャの解放(アプリケーション終了時にだけ呼ぶこと！)
 #if !defined(_WIN32) || !defined(WITH_DIRECTX)
 	int getTextureWidth(DevicePtr device, TexturePtr texture);
diff --git a/graphic/scrmanip.cpp b/graphic/scrmanip.cpp
index ed28e170..2de16644 100644
--- a/graphic/scrmanip.cpp
+++ b/graphic/scrmanip.cpp
@@ -114,34 +114,7 @@ void ScreenManipulator::InitDevice(bool fullscreen) { // Direct3D オブジェ
 }
 
 void ScreenManipulator::preloadTextures() { // テクスチャの先行読み込み
-	constexpr intptr_t textureList[] = {
-		IDB_PNG_TBLBAIZE,
-		IDB_PNG_TBLBORDER,
-		IDB_PNG_SDBAR,
-		IDB_PNG_TILE,
-		IDB_PNG_FONT,
-		IDB_PNG_TITLE,
-		IDB_PNG_BUTTON,
-		IDB_PNG_FONT_HUGE,
-		IDB_PNG_DICE,
-		IDB_PNG_FONT_SMALL,
-		IDB_PNG_TENBOU,
-		IDB_PNG_CHICHAMARK,
-		IDB_PNG_SCORE_INDICATOR,
-		IDB_PNG_CALL_TEXT,
-		IDB_PNG_CALL_DIGITS,
-		IDB_PNG_AGARI_WINDOW,
-		IDB_PNG_SCORE_DIGITS,
-		IDB_PNG_CHECKBOX,
-		IDB_PNG_TILE_BLACK,
-		IDB_PNG_MOON_CLOCK,
-		IDB_PNG_SPLASH_SCREEN,
-		IDB_PNG_TITLE_BACKGROUND,
-		0, // sentinel
-	};
-	TexturePtr dummyTexture;
-	for (const intptr_t* i = textureList; *i != 0; ++i)
-		LoadTexture(pDevice, &dummyTexture, MAKEINTRESOURCE(*i));
+	PreloadTextures(pDevice);
 }
 
 void ScreenManipulator::disposeTextures() {
@@ -157,7 +130,11 @@ ScreenManipulator::ScreenManipulator(HWND windowHandle, bool fullscreen) {
 	InitDevice(fullscreen);
 	SplashScreen::LoadTexture(pDevice);
 	myScene = new SplashScreen(this);
+#ifdef WITH_DIRECTX
 	myFPSIndicator = new FPSIndicator(this);
+#else /* WITH_DIRECTX */
+	myFPSIndicator = nullptr;
+#endif /* WITH_DIRECTX */
 	lastRedrawTime = 0;
 	redrawFlag = true;
 }
@@ -169,7 +146,8 @@ ScreenManipulator::ScreenManipulator(Display* displayPtr, Window windowHandle, b
 	pDevice = nullptr; disp = displayPtr; hWnd = windowHandle;
 	InitDevice(fullscreen);
 	myScene = new SplashScreen(this);
-	myFPSIndicator = new FPSIndicator(this);
+	//myFPSIndicator = new FPSIndicator(this);
+	myFPSIndicator = nullptr;
 	lastRedrawTime = 0;
 	redrawFlag = true;
 }
diff --git a/graphic/sprite.cpp b/graphic/sprite.cpp
index e0efaf79..369a7052 100644
--- a/graphic/sprite.cpp
+++ b/graphic/sprite.cpp
@@ -33,6 +33,9 @@ SpriteRenderer* SpriteRenderer::instantiate(DevicePtr device) {
 		return renderer[reinterpret_cast<intptr_t>(device)];
 	} else { // デバイスに対応するスプライトは初回の使用(初期化が必要)
 		renderer[reinterpret_cast<intptr_t>(device)] = new SpriteRenderer(device);
+#ifndef WITH_DIRECTX
+		PreloadTextures(device);
+#endif /* WITH_DIRECTX */
 		return renderer[reinterpret_cast<intptr_t>(device)];
 	}
 }
diff --git a/mjcore/main.cpp b/mjcore/main.cpp
index 08749c6f..da0d70e1 100644
--- a/mjcore/main.cpp
+++ b/mjcore/main.cpp
@@ -38,6 +38,7 @@ void GameThread::ThreadMain(GameThread* lpParam) {
 #endif /*_WIN32*/
 #ifndef WITH_DIRECTX
 	mihajong_graphic::WaitForWindowInit();
+	mihajong_graphic::Transit(mihajong_graphic::SceneID::splash);
 #endif /*WITH_DIRECTX*/
 	initapp(gameType, hwnd);
 	startgame(gameType);