Enhanced Renderer

Add multi-draw support.
Add Scale, Viewport, LogicalSize, ClipRect support
Querying driver number.

MiniEngine.cpp

@@ -888,16 +888,19 @@ namespace MiniEngine
         _clear();
 	}
 
+	//private
 	void Renderer::_set(SDL_Renderer* p)
 	{
         _rnd.reset(p,SDL_DestroyRenderer);
 	}
 
+	//private
 	void Renderer::_clear()
 	{
         _rnd.reset();
 	}
 
+	//private
 	SDL_Renderer* Renderer::_get() const
 	{
         return _rnd.get();
@@ -927,8 +930,6 @@ namespace MiniEngine
 		return _internal::getBlendModeFromSDLBlendMode(temp);
 	}
 
-
-
 	int Renderer::setTarget(Texture & t)
 	{
 		return SDL_SetRenderTarget(_get(), t._get());
@@ -956,6 +957,113 @@ namespace MiniEngine
         return SDL_RenderDrawPoint(_get(),p.x,p.y);
 	}
 
+	int Renderer::drawLine(const Point& A,const Point& B)
+	{
+        return SDL_RenderDrawLine(_get(),A.x,A.y,B.x,B.y);
+	}
+
+    int Renderer::fillRects(const SDL_Rect* pRectArray, int n)
+    {
+        return SDL_RenderFillRects(_get(),pRectArray,n);
+    }
+
+    int Renderer::drawRects(const SDL_Rect* pRectArray, int n)
+    {
+        return SDL_RenderDrawRects(_get(),pRectArray,n);
+    }
+
+    int Renderer::drawPoints(const SDL_Point* pPointArray, int n)
+    {
+        return SDL_RenderDrawPoints(_get(),pPointArray,n);
+    }
+
+    int Renderer::drawLines(const SDL_Point* pPointArray, int n)
+    {
+        return SDL_RenderDrawLines(_get(),pPointArray,n);
+    }
+
+    int Renderer::fillRects(const std::vector<SDL_Rect>& rectvec)
+    {
+        return fillRects(rectvec.data(),rectvec.size());
+    }
+
+    int Renderer::drawRects(const std::vector<SDL_Rect>& rectvec)
+    {
+        return drawRects(rectvec.data(),rectvec.size());
+    }
+
+    int Renderer::drawPoints(const std::vector<SDL_Point>& pointvec)
+    {
+        return drawPoints(pointvec.data(),pointvec.size());
+    }
+
+    int Renderer::drawLines(const std::vector<SDL_Point>& pointvec)
+    {
+        return drawLines(pointvec.data(),pointvec.size());
+    }
+
+    int Renderer::setScale(float scaleX, float scaleY)
+    {
+        return SDL_RenderSetScale(_get(),scaleX,scaleY);
+    }
+
+    std::tuple<float,float> Renderer::getScale() const
+    {
+        float sx,sy;
+        SDL_RenderGetScale(_get(),&sx,&sy);
+        return std::make_tuple(sx,sy);
+    }
+
+    int Renderer::setViewport(const Rect& viewport)
+    {
+        auto rect=viewport.toSDLRect();
+        return SDL_RenderSetViewport(_get(),&rect);
+    }
+
+    Rect Renderer::getViewport() const
+    {
+        SDL_Rect rect;
+        SDL_RenderGetViewport(_get(),&rect);
+        return Rect(rect);
+    }
+
+    int Renderer::setLogicalSize(int w, int h)
+    {
+        return SDL_RenderSetLogicalSize(_get(),w,h);
+    }
+
+    Rect Renderer::getLogicalSize() const
+    {
+        int w,h;
+        SDL_RenderGetLogicalSize(_get(),&w,&h);
+        return Rect(0,0,w,h);
+    }
+
+    int Renderer::setClipRect(const Rect& cliprect)
+    {
+        auto r=cliprect.toSDLRect();
+        return SDL_RenderSetClipRect(_get(),&r);
+    }
+
+    Rect Renderer::getClipRect() const
+    {
+        SDL_Rect r;
+        SDL_RenderGetClipRect(_get(),&r);
+        return Rect(r);
+    }
+
+    bool Renderer::isClipEnabled() const
+    {
+        return (SDL_RenderIsClipEnabled(_get())==SDL_TRUE);
+    }
+
+    Rect Renderer::getOutputSize() const
+    {
+        int w,h;
+        SDL_GetRendererOutputSize(_get(),&w,&h);
+        return Rect(0,0,w,h);
+    }
+
 	int Renderer::clear()
 	{
 		return SDL_RenderClear(_get());
@@ -1096,6 +1204,11 @@ namespace MiniEngine
 		return t;
 	}
 
+    bool Renderer::isRenderTargetSupported() const
+    {
+        return (SDL_RenderTargetSupported(_get())==SDL_TRUE);
+    }
+
     bool Renderer::isReady() const
 	{
 		return (_get() != nullptr);
@@ -1106,6 +1219,12 @@ namespace MiniEngine
         _clear();
 	}
 
+	//static
+    int Renderer::GetDriversNum()
+    {
+        return SDL_GetNumRenderDrivers();
+    }
+
 	//private
 	void Cursor::_set(SDL_Cursor* p)
 	{

MiniEngine.h

@@ -224,6 +224,33 @@ namespace MiniEngine
 		int fillRect(const Rect& rect);
 		int drawRect(const Rect& rect);
 		int drawPoint(const Point& p);
+		int drawLine(const Point& A,const Point& B);
+
+		/// Experimental
+        int fillRects(const SDL_Rect* pRectArray,int n);
+        int drawRects(const SDL_Rect* pRectArray,int n);
+        int drawPoints(const SDL_Point* pPointArray,int n);
+        int drawLines(const SDL_Point* pPointArray,int n);
+        /// Experimental
+        int fillRects(const std::vector<SDL_Rect>& rectvec);
+        int drawRects(const std::vector<SDL_Rect>& rectvec);
+        int drawPoints(const std::vector<SDL_Point>& pointvec);
+        int drawLines(const std::vector<SDL_Point>& pointvec);
+
+        int setScale(float scaleX,float scaleY);
+        std::tuple<float,float> getScale() const;
+
+        int setViewport(const Rect& viewport);
+        Rect getViewport() const;
+
+        int setLogicalSize(int w,int h);
+        Rect getLogicalSize() const;
+
+        int setClipRect(const Rect& cliprect);
+        Rect getClipRect() const;
+        bool isClipEnabled() const;
+
+        Rect getOutputSize() const;
 
 		int clear();
 		void update();
@@ -244,9 +271,13 @@ namespace MiniEngine
 		Texture loadTextureRW(const RWOP& rwop) const throw(ErrorViewer);
 		Texture createTexture(int Width, int Height) const throw(ErrorViewer);
 
+		bool isRenderTargetSupported() const;
 		bool isReady() const;
 
 		void release();
+
+		/// Experimental
+		static int GetDriversNum();
 	private:
 		std::shared_ptr<SDL_Renderer> _rnd;
 		void _set(SDL_Renderer*);