--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/egl/sfopenvg/riRasterizer.h	Wed May 12 11:20:41 2010 +0100
@@ -0,0 +1,173 @@
+#ifndef __RIRASTERIZER_H
+#define __RIRASTERIZER_H
+
+/*------------------------------------------------------------------------
+ *
+ * OpenVG 1.1 Reference Implementation
+ * -----------------------------------
+ *
+ * Copyright (c) 2007 The Khronos Group Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and /or associated documentation files
+ * (the "Materials "), to deal in the Materials without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Materials,
+ * and to permit persons to whom the Materials are furnished to do so,
+ * subject to the following conditions: 
+ *
+ * The above copyright notice and this permission notice shall be included 
+ * in all copies or substantial portions of the Materials. 
+ *
+ * THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE MATERIALS OR
+ * THE USE OR OTHER DEALINGS IN THE MATERIALS.
+ *
+ *//**
+ * \file
+ * \brief	Rasterizer class.
+ * \note	
+ *//*-------------------------------------------------------------------*/
+
+#ifndef __RIMATH_H
+#include "riMath.h"
+#endif
+
+#ifndef __RIARRAY_H
+#include "riArray.h"
+#endif
+
+#ifndef __RIPIXELPIPE_H
+#include "riPixelPipe.h"
+#endif
+
+//=======================================================================
+
+namespace OpenVGRI
+{
+
+/*-------------------------------------------------------------------*//*!
+* \brief	Scalar and vector data types used by the rasterizer.
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+typedef RIfloat RScalar;	//change this if you want to have different precision for rasterizer scalars and RIfloat
+
+struct RVector2
+{
+	RI_INLINE RVector2()							{ }
+	RI_INLINE RVector2(const Vector2& v)			{ x = v.x; y = v.y; }
+	RI_INLINE RVector2(RIfloat vx, RIfloat vy)		{ x = vx; y = vy; }
+	RI_INLINE void set(RIfloat vx, RIfloat vy)		{ x = vx; y = vy; }
+	RScalar		x;
+	RScalar		y;
+};
+
+/*-------------------------------------------------------------------*//*!
+* \brief	Converts a set of edges to coverage values for each pixel and
+*			calls PixelPipe::pixelPipe for painting a pixel.
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+class Rasterizer
+{
+public:
+	Rasterizer();	//throws bad_alloc
+	~Rasterizer();
+
+    void        setup(int vpx, int vpy, int vpwidth, int vpheight, VGFillRule fillRule, const PixelPipe* pixelPipe, RIuint32* covBuffer);
+	void		setScissor(const Array<Rectangle>& scissors);	//throws bad_alloc
+
+	void		clear();
+	void		addEdge(const Vector2& v0, const Vector2& v1);	//throws bad_alloc
+
+	int         setupSamplingPattern(VGRenderingQuality renderingQuality, int numFSAASamples);
+	void		fill();	//throws bad_alloc
+
+    void        getBBox(int& sx, int& sy, int& ex, int& ey) const       { sx = m_covMinx; sy = m_covMiny; ex = m_covMaxx; ey = m_covMaxy; }
+private:
+	Rasterizer(const Rasterizer&);						//!< Not allowed.
+	const Rasterizer& operator=(const Rasterizer&);		//!< Not allowed.
+
+	struct ScissorEdge
+	{
+		ScissorEdge() : x(0), miny(0), maxy(0), direction(0) {}
+		bool operator<(const ScissorEdge& e) const	{ return x < e.x; }
+		int			x;
+		int			miny;
+		int			maxy;
+		int			direction;		//1 start, -1 end
+	};
+
+	struct Edge
+	{
+		Edge() : v0(), v1(), direction(1) {}
+		bool operator<(const Edge& e) const	{ return v0.y < e.v0.y; }
+		RVector2	v0;
+		RVector2	v1;
+		int			direction;
+	};
+
+	struct ActiveEdge
+	{
+		ActiveEdge() : v0(), v1(), direction(0), minx(0.0f), maxx(0.0f), n(), cnst(0.0f) {}
+		bool operator<(const ActiveEdge& e) const	{ return minx < e.minx; }
+		RVector2	v0;
+		RVector2	v1;
+		int			direction;		//-1 down, 1 up
+		RScalar		minx;			//for the current scanline
+		RScalar		maxx;			//for the current scanline
+		RVector2	n;
+		RScalar		cnst;
+	};
+
+	struct Sample
+	{
+		Sample() : x(0.0f), y(0.0f), weight(0.0f) {}
+		RScalar		x;
+		RScalar		y;
+		RScalar		weight;
+	};
+
+    void                addBBox(const Vector2& v);
+
+	Array<Edge>				m_edges;
+	Array<ScissorEdge>		m_scissorEdges;
+	bool					m_scissor;
+
+	Sample				m_samples[RI_MAX_SAMPLES];
+	int					m_numSamples;
+	int					m_numFSAASamples;
+	RScalar				m_sumWeights;
+	RScalar				m_sampleRadius;
+
+    Vector2             m_edgeMin;
+    Vector2             m_edgeMax;
+    int                 m_covMinx;
+    int                 m_covMiny;
+    int                 m_covMaxx;
+    int                 m_covMaxy;
+    int                 m_vpx;
+    int                 m_vpy;
+    int                 m_vpwidth;
+    int                 m_vpheight;
+    VGFillRule          m_fillRule;
+    const PixelPipe*    m_pixelPipe;
+    RIuint32*           m_covBuffer;
+};
+
+//=======================================================================
+
+}	//namespace OpenVGRI
+
+//=======================================================================
+
+#endif /* __RIRASTERIZER_H */