Make the FrameBuffer class pure abstract.

src/Main/FrameBuffer.cpp

@@ -35,7 +35,6 @@ namespace sw
 
 	FrameBuffer::Cursor FrameBuffer::cursor = {};
 	bool FrameBuffer::topLeftOrigin = false;
-	void FrameBuffer::typeinfo() {}
 
 	FrameBuffer::FrameBuffer(int width, int height, bool fullscreen, bool topLeftOrigin)
 	{

src/Main/FrameBuffer.hpp

@@ -36,12 +36,10 @@ namespace sw
 
 	class [[clang::lto_visibility_public]] FrameBuffer
 	{
-		virtual void typeinfo();   // Dummy key method (https://gcc.gnu.org/onlinedocs/gcc/Vague-Linkage.html)
-
 	public:
 		FrameBuffer(int width, int height, bool fullscreen, bool topLeftOrigin);
 
-		virtual ~FrameBuffer();
+		virtual ~FrameBuffer() = 0;
 
 		int getWidth() const;
 		int getHeight() const;

src/Main/FrameBufferAndroid.hpp

@@ -28,7 +28,7 @@ namespace sw
 	public:
 		FrameBufferAndroid(ANativeWindow* window, int width, int height);
 
-		~FrameBufferAndroid();
+		~FrameBufferAndroid() override;
 
 		void flip(void *source, Format sourceFormat, size_t sourceStride) override {blit(source, 0, 0, sourceFormat, sourceStride);};
 		void blit(void *source, const Rect *sourceRect, const Rect *destRect, Format sourceFormat, size_t sourceStride) override;

src/Main/FrameBufferDD.hpp

@@ -26,7 +26,7 @@ namespace sw
 	public:
 		FrameBufferDD(HWND windowHandle, int width, int height, bool fullscreen, bool topLeftOrigin);
 
-		virtual ~FrameBufferDD();
+		~FrameBufferDD() override;
 
 		void flip(void *source, Format sourceFormat, size_t sourceStride) override;
 		void blit(void *source, const Rect *sourceRect, const Rect *destRect, Format sourceFormat, size_t sourceStride) override;

src/Main/FrameBufferGDI.hpp

@@ -24,8 +24,8 @@ namespace sw
 	public:
 		FrameBufferGDI(HWND windowHandle, int width, int height, bool fullscreen, bool topLeftOrigin);
 
-		virtual ~FrameBufferGDI();
-		
+		~FrameBufferGDI() override;
+
 		void flip(void *source, Format sourceFormat, size_t sourceStride) override;
 		void blit(void *source, const Rect *sourceRect, const Rect *destRect, Format sourceFormat, size_t sourceStride) override;
 

src/Main/FrameBufferWin.hpp

@@ -31,7 +31,7 @@ namespace sw
 	public:
 		FrameBufferWin(HWND windowHandle, int width, int height, bool fullscreen, bool topLeftOrigin);
 
-		virtual ~FrameBufferWin();
+		~FrameBufferWin() override;
 
 		void flip(void *source, Format sourceFormat, size_t sourceStride) override = 0;
 		void blit(void *source, const Rect *sourceRect, const Rect *destRect, Format sourceFormat, size_t sourceStride) override = 0;

src/Main/FrameBufferX11.hpp

@@ -33,7 +33,7 @@ namespace sw
 	public:
 		FrameBufferX11(Display *display, Window window, int width, int height);
 
-		~FrameBufferX11();
+		~FrameBufferX11() override;
 
 		void flip(void *source, Format sourceFormat, size_t sourceStride) override {blit(source, 0, 0, sourceFormat, sourceStride);};
 		void blit(void *source, const Rect *sourceRect, const Rect *destRect, Format sourceFormat, size_t sourceStride) override;

src/OpenGL/libEGL/TypeInfo.cpp

@@ -18,7 +18,6 @@
 
 namespace sw
 {
-void FrameBuffer::typeinfo() {}
 void Surface::typeinfo() {}
 }