Implement line renderer (OpenGL only for now)

Runtime/Graphics/CLineRenderer.hpp

@@ -0,0 +1,60 @@
+#ifndef __PSHAG_CLINERENDERER_HPP__
+#define __PSHAG_CLINERENDERER_HPP__
+
+#include "RetroTypes.hpp"
+#include "CVector3f.hpp"
+#include "CColor.hpp"
+#include "boo/graphicsdev/IGraphicsDataFactory.hpp"
+
+namespace pshag
+{
+
+class CLineRenderer
+{
+public:
+    enum class EPrimitiveMode
+    {
+        Lines,
+        LineStrip,
+        LineLoop
+    };
+
+public:
+    EPrimitiveMode m_mode;
+    u32 m_maxVerts;
+    u32 m_nextVert = 0;
+    bool m_final = false;
+    bool m_textured;
+
+    Zeus::CVector3f m_firstPos;
+    Zeus::CVector3f m_secondPos;
+    Zeus::CVector2f m_firstUV;
+    Zeus::CColor m_firstColor;
+    float m_firstWidth;
+
+    Zeus::CVector3f m_lastPos;
+    Zeus::CVector3f m_lastPos2;
+    Zeus::CVector2f m_lastUV;
+    Zeus::CColor m_lastColor;
+    float m_lastWidth;
+
+public:
+    boo::GraphicsDataToken m_gfxToken;
+    boo::IGraphicsBufferD* m_vertBuf;
+    boo::IGraphicsBufferD* m_uniformBuf;
+    boo::IShaderDataBinding* m_shaderBind = nullptr;
+
+    CLineRenderer(EPrimitiveMode mode, u32 maxVerts, boo::ITexture* texture, bool additive);
+
+    void Reset();
+    void AddVertex(const Zeus::CVector3f& position, const Zeus::CColor& color, float width,
+                   const Zeus::CVector2f& uv=Zeus::CVector2f::skZero);
+    void Render(const Zeus::CColor& moduColor=Zeus::CColor::skWhite);
+
+    static void Initialize();
+    static void Shutdown();
+};
+
+}
+
+#endif // __PSHAG_CLINERENDERER_HPP__