- properly delete backing images in the texture manager.

Although the images themselves are automatically taken down, any memory they allocate is not - and some of the special tile classes do need dynamic storage.

source/common/platform/win32/i_main.cpp

@@ -1242,7 +1242,7 @@ int WINAPI wWinMain (HINSTANCE hInstance, HINSTANCE nothing, LPWSTR cmdline, int
 	_CrtSetDbgFlag (_CrtSetDbgFlag(0) | _CRTDBG_LEAK_CHECK_DF);
 
 	// Use this to break at a specific allocation number.
-	//_crtBreakAlloc = 227524;
+	//_crtBreakAlloc = 291757;
 #endif
 
 	int ret = DoMain (hInstance);

source/common/textures/imagetexture.cpp

@@ -57,6 +57,11 @@ FImageTexture::FImageTexture(FImageSource *img) noexcept
 	}
 }
 
+FImageTexture::~FImageTexture()
+{
+	delete mImage;
+}
+
 void FImageTexture::SetFromImage()
 {
 	auto img = mImage;

source/common/textures/textures.h

@@ -357,6 +357,7 @@ protected:
 	void SetFromImage();
 public:
 	FImageTexture(FImageSource* image) noexcept;
+	~FImageTexture();
 	TArray<uint8_t> Get8BitPixels(bool alphatex) override;
 
 	void SetImage(FImageSource* img)