Update widgets module. Raster example initial.

RasterRender/public/FrameBuffer.hpp

@@ -0,0 +1,34 @@
+
+#pragma once
+
+#include "Rect.hpp"
+#include "Color.hpp"
+
+namespace tp {
+	class RenderBuffer {
+	public:
+		RenderBuffer(const Vec2F& size);
+		RenderBuffer(const Vec2F& size, tp::uint1 samples);
+		~RenderBuffer();
+
+		void beginDraw();
+		void setViewport(const RectF& viewport);
+		void clear();
+		void endDraw();
+
+		uint4 texId() const;
+		uint4 buffId() const;
+
+		const Vec2F& getSize() const;
+
+	public:
+		RGBA mClearCol = 0.f;
+
+	private:
+		uint4 mFrameBufferID = 0; // regroups 0, 1, or more textures, and 0 or 1 depth buffer.
+		uint4 mTextureId = 0;     // texture we're going to render to ( colour attachement #0 )
+		uint4 mDepthBufferID = 0;
+		uint4 mDrawBuffers[1];
+		Vec2F mSize;
+	};
+};