Codechange: [SDL2] Split driver in base-part and default backend

src/video/sdl2_v.h

@@ -15,9 +15,9 @@
 #include "video_driver.hpp"
 
 /** The SDL video driver. */
-class VideoDriver_SDL : public VideoDriver {
+class VideoDriver_SDL_Base : public VideoDriver {
 public:
-	VideoDriver_SDL() : sdl_window(nullptr) {}
+	VideoDriver_SDL_Base() : sdl_window(nullptr) {}
 
 	const char *Start(const StringList &param) override;
 
@@ -59,19 +59,17 @@ protected:
 	void InputLoop() override;
 	bool LockVideoBuffer() override;
 	void UnlockVideoBuffer() override;
-	void Paint() override;
-	void PaintThread() override;
 	void CheckPaletteAnim() override;
 
 	/** Indicate to the driver the client-side might have changed. */
 	void ClientSizeChanged(int w, int h, bool force);
 
 	/** (Re-)create the backing store. */
-	virtual bool AllocateBackingStore(int w, int h, bool force = false);
+	virtual bool AllocateBackingStore(int w, int h, bool force = false) = 0;
 	/** Get a pointer to the video buffer. */
-	virtual void *GetVideoPointer();
+	virtual void *GetVideoPointer() = 0;
 	/** Hand video buffer back to the painting backend. */
-	virtual void ReleaseVideoPointer() {}
+	virtual void ReleaseVideoPointer() = 0;
 	/** Create the main window. */
 	virtual bool CreateMainWindow(uint w, uint h, uint flags = 0);
 
@@ -81,13 +79,10 @@ private:
 	void MainLoopCleanup();
 	bool CreateMainSurface(uint w, uint h, bool resize);
 	const char *Initialize();
-	bool CreateMainWindow(uint w, uint h);
-	void UpdatePalette();
-	void MakePalette();
 
 #ifdef __EMSCRIPTEN__
 	/* Convert a constant pointer back to a non-constant pointer to a member function. */
-	static void EmscriptenLoop(void *self) { ((VideoDriver_SDL *)self)->LoopOnce(); }
+	static void EmscriptenLoop(void *self) { ((VideoDriver_SDL_Base *)self)->LoopOnce(); }
 #endif
 
 	/**
@@ -99,14 +94,7 @@ private:
 	std::thread draw_thread;
 	std::unique_lock<std::recursive_mutex> draw_lock;
 
-	static void PaintThreadThunk(VideoDriver_SDL *drv);
-};
-
-/** Factory for the SDL video driver. */
-class FVideoDriver_SDL : public DriverFactoryBase {
-public:
-	FVideoDriver_SDL() : DriverFactoryBase(Driver::DT_VIDEO, 5, "sdl", "SDL Video Driver") {}
-	Driver *CreateInstance() const override { return new VideoDriver_SDL(); }
+	static void PaintThreadThunk(VideoDriver_SDL_Base *drv);
 };
 
 #endif /* VIDEO_SDL_H */