--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/egl/sfopenvg/riApi.cpp	Wed May 12 11:20:41 2010 +0100
@@ -0,0 +1,4046 @@
+/*------------------------------------------------------------------------
+ *
+ * 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	Implementations of OpenVG API functions.
+ * \note	The actual processing is done in Path, Image, Rasterizer and PixelPipe classes.
+ *//*-------------------------------------------------------------------*/
+
+#include "openvg.h"
+#include "egl.h"
+#include "riMiniEGL.h"
+#include "riContext.h"
+#include "riRasterizer.h"
+#include "riPixelPipe.h"
+#include "riPath.h"
+#include <stdio.h>
+#include <e32debug.h>
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+#include "openvginternal.h"
+#endif
+
+//==============================================================================================
+
+namespace OpenVGRI
+{
+
+/* EGL&OS functions for use in an OpenVG implementation */
+void* eglvgGetCurrentVGContext(void);
+bool  eglvgIsInUse(void* image);
+void  OSAcquireMutex(void);
+void  OSReleaseMutex(void);
+
+
+#define RI_NO_RETVAL
+
+//this must be the first line in an API function
+#define RI_GET_CONTEXT(RETVAL) \
+	OSAcquireMutex(); \
+	VGContext* context = (VGContext*)eglvgGetCurrentVGContext(); \
+	if(!context) \
+	{ \
+		OSReleaseMutex(); \
+		return RETVAL;\
+	}
+
+#define RI_IF_ERROR(COND, ERRORCODE, RETVAL) \
+	if(COND) { context->setError(ERRORCODE); OSReleaseMutex(); return RETVAL; }
+
+//all API functions must call this as their last operation (also functions that don't return values)
+//NOTE: don't evaluate anything or read state in RETVAL (it'll be executed after the mutex has been released)
+#define RI_RETURN(RETVAL) \
+	{ OSReleaseMutex(); \
+	return RETVAL; }
+
+static bool isAligned(const void* ptr, int alignment)
+{
+	RI_ASSERT(alignment == 1 || alignment == 2 || alignment == 4);
+	if(((RIuintptr)ptr) & (alignment-1))
+		return false;
+	return true;
+}
+
+static bool isAligned(const void* ptr, VGImageFormat format)
+{
+	RI_ASSERT(isValidImageFormat(format));
+	int alignment = Color::formatToDescriptor(format).bitsPerPixel >> 3;
+	if(alignment <= 1)
+		return true;	//one bit or byte per pixel
+	return isAligned(ptr, alignment);
+}
+
+bool isValidImageFormat(int f)
+{
+	if(f < VG_sRGBX_8888 || f > VG_lABGR_8888_PRE)
+		return false;
+	return true;
+}
+
+bool isValidImageFormat(EGLNativePixmapType f)
+  {
+#warning TODO: implement isValidImageFormat for EGLNativePixmapType arg
+  return false;
+  }
+
+}	//namespace OpenVGRI
+
+using namespace OpenVGRI;
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgFlush(void)
+#else
+void RI_APIENTRY vgFlush(void)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	//the RI doesn't cache anything, so this is a no-op
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-----
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgFinish(void)
+#else
+void RI_APIENTRY vgFinish(void)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	//the RI doesn't cache anything, so this is a no-op
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGErrorCode RI_APIENTRY do_vgGetError(void)
+#else
+VGErrorCode RI_APIENTRY vgGetError(void)
+#endif
+{
+	RI_GET_CONTEXT(VG_NO_CONTEXT_ERROR);
+	VGErrorCode error = context->m_error;
+	context->m_error = VG_NO_ERROR;
+	RI_RETURN(error);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+namespace OpenVGRI
+{
+
+RIfloat inputFloat(VGfloat f)
+{
+	//this function is used for all floating point input values
+	if(RI_ISNAN(f)) return 0.0f;	//convert NaN to zero
+	return RI_CLAMP(f, -RI_FLOAT_MAX, RI_FLOAT_MAX);	//clamp +-inf to +-RIfloat max
+}
+
+Vector2 inputVector2(const Vector2& v)
+{
+    return Vector2(inputFloat(v.x), inputFloat(v.y));
+}
+
+Color inputColor(const Color& c)
+{
+    Color r = c;
+    r.r = inputFloat(r.r);
+    r.g = inputFloat(r.g);
+    r.b = inputFloat(r.b);
+    r.a = inputFloat(r.a);
+    return r;
+}
+
+static int inputFloatToInt(VGfloat value)
+{
+	double v = (double)floor(value);
+	v = v > (double)RI_INT32_MAX ? (double)RI_INT32_MAX : v;
+	v = v < (double)RI_INT32_MIN ? (double)RI_INT32_MIN : v;
+	return (int)v;
+}
+
+static int paramToInt(const void* values, bool floats, int count, int i)
+{
+	RI_ASSERT(i >= 0);
+	if(i >= count || !values)
+		return 0;
+	if(floats)
+		return inputFloatToInt(((const VGfloat*)values)[i]);
+	return (int)((const VGint*)values)[i];
+}
+
+static RIfloat paramToFloat(const void* values, bool floats, int count, int i)
+{
+	RI_ASSERT(i >= 0);
+	if(i >= count || !values)
+		return 0.0f;
+	if(floats)
+		return ((const VGfloat*)values)[i];
+	return (RIfloat)((const VGint*)values)[i];
+}
+
+static void floatToParam(void* output, bool outputFloats, int count, int i, VGfloat value)
+{
+	RI_ASSERT(i >= 0);
+	RI_ASSERT(output);
+	if(i >= count)
+		return;
+	if(outputFloats)
+		((VGfloat*)output)[i] = value;
+	else
+		((VGint*)output)[i] = (VGint)inputFloatToInt(value);
+}
+
+static void intToParam(void* output, bool outputFloats, int count, int i, VGint value)
+{
+	RI_ASSERT(i >= 0);
+	RI_ASSERT(output);
+	if(i >= count)
+		return;
+	if(outputFloats)
+		((VGfloat*)output)[i] = (VGfloat)value;
+	else
+		((VGint*)output)[i] = value;
+}
+
+}	//namespace OpenVGRI
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void setifv(VGContext* context, VGParamType type, VGint count, const void* values, bool floats)
+{
+	RI_ASSERT(context);
+	RI_ASSERT(!count || (count && values));
+
+	int ivalue = paramToInt(values, floats, count, 0);
+	RIfloat fvalue = paramToFloat(values, floats, count, 0);
+
+	switch(type)
+	{
+	case VG_MATRIX_MODE:
+		if(count != 1 || ivalue < VG_MATRIX_PATH_USER_TO_SURFACE || ivalue > VG_MATRIX_GLYPH_USER_TO_SURFACE)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_matrixMode = (VGMatrixMode)ivalue;
+		break;
+
+	case VG_FILL_RULE:
+		if(count != 1 || ivalue < VG_EVEN_ODD || ivalue > VG_NON_ZERO)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_fillRule = (VGFillRule)ivalue;
+		break;
+
+	case VG_IMAGE_QUALITY:
+		if(count != 1 || ivalue < VG_IMAGE_QUALITY_NONANTIALIASED || ivalue > VG_IMAGE_QUALITY_BETTER)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_imageQuality = (VGImageQuality)ivalue;
+		break;
+
+	case VG_RENDERING_QUALITY:
+		if(count != 1 || ivalue < VG_RENDERING_QUALITY_NONANTIALIASED || ivalue > VG_RENDERING_QUALITY_BETTER)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_renderingQuality = (VGRenderingQuality)ivalue;
+		break;
+
+	case VG_BLEND_MODE:
+		if(count != 1 || ivalue < VG_BLEND_SRC || ivalue > VG_BLEND_ADDITIVE)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_blendMode = (VGBlendMode)ivalue;
+		break;
+
+	case VG_IMAGE_MODE:
+		if(count != 1 || ivalue < VG_DRAW_IMAGE_NORMAL || ivalue > VG_DRAW_IMAGE_STENCIL)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_imageMode = (VGImageMode)ivalue;
+		break;
+
+	case VG_SCISSOR_RECTS:
+	{
+		if(count & 3)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }	//count must be a multiple of four
+		try
+		{
+			Array<Rectangle> scissor;
+			for(int i=0;i<RI_INT_MIN(count, RI_MAX_SCISSOR_RECTANGLES*4);i+=4)
+			{
+				Rectangle s;
+				s.x = paramToInt(values, floats, count, i+0);
+				s.y = paramToInt(values, floats, count, i+1);
+				s.width = paramToInt(values, floats, count, i+2);
+				s.height = paramToInt(values, floats, count, i+3);
+				scissor.push_back(s);	//throws bad_alloc
+			}
+			context->m_scissor.swap(scissor);	//replace context data
+		}
+		catch(std::bad_alloc)
+		{
+			context->setError(VG_OUT_OF_MEMORY_ERROR);
+		}
+		break;
+	}
+
+	case VG_COLOR_TRANSFORM:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_colorTransform = ivalue ? VG_TRUE : VG_FALSE;
+		break;
+
+	case VG_COLOR_TRANSFORM_VALUES:
+		if(count != 8 || !values) { context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+        {
+            for(int i=0;i<8;i++)
+            {
+                context->m_inputColorTransformValues[i] = paramToFloat(values, floats, count, i);
+                context->m_colorTransformValues[i] = inputFloat(context->m_inputColorTransformValues[i]);
+            }
+        }
+		break;
+
+	case VG_STROKE_LINE_WIDTH:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_inputStrokeLineWidth = fvalue;
+        context->m_strokeLineWidth = inputFloat(fvalue);
+		break;
+
+	case VG_STROKE_CAP_STYLE:
+		if(count != 1 || ivalue < VG_CAP_BUTT || ivalue > VG_CAP_SQUARE)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_strokeCapStyle = (VGCapStyle)ivalue;
+		break;
+
+	case VG_STROKE_JOIN_STYLE:
+		if(count != 1 || ivalue < VG_JOIN_MITER || ivalue > VG_JOIN_BEVEL)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_strokeJoinStyle = (VGJoinStyle)ivalue;
+		break;
+
+	case VG_STROKE_MITER_LIMIT:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_inputStrokeMiterLimit = fvalue;
+		context->m_strokeMiterLimit = inputFloat(fvalue);
+		break;
+
+	case VG_STROKE_DASH_PATTERN:
+	{
+		try
+		{
+			Array<RIfloat> inputStrokeDashPattern;
+			Array<RIfloat> strokeDashPattern;
+			for(int i=0;i<RI_INT_MIN(count, RI_MAX_DASH_COUNT);i++)
+            {
+                RIfloat v = paramToFloat(values, floats, count, i);
+				inputStrokeDashPattern.push_back(v);	//throws bad_alloc
+				strokeDashPattern.push_back(inputFloat(v));	//throws bad_alloc
+            }
+			context->m_inputStrokeDashPattern.swap(inputStrokeDashPattern);	//replace context data
+			context->m_strokeDashPattern.swap(strokeDashPattern);	//replace context data
+		}
+		catch(std::bad_alloc)
+		{
+			context->setError(VG_OUT_OF_MEMORY_ERROR);
+		}
+		break;
+	}
+
+	case VG_STROKE_DASH_PHASE:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_inputStrokeDashPhase = fvalue;
+		context->m_strokeDashPhase = inputFloat(fvalue);
+		break;
+
+	case VG_STROKE_DASH_PHASE_RESET:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_strokeDashPhaseReset = ivalue ? VG_TRUE : VG_FALSE;
+		break;
+
+	case VG_TILE_FILL_COLOR:
+		if(count != 4 || !values) { context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_inputTileFillColor.set(paramToFloat(values, floats, count, 0),
+									 paramToFloat(values, floats, count, 1),
+									 paramToFloat(values, floats, count, 2),
+									 paramToFloat(values, floats, count, 3),
+									 Color::sRGBA);
+        context->m_tileFillColor = inputColor(context->m_inputTileFillColor);
+		break;
+
+	case VG_GLYPH_ORIGIN:
+		if(count != 2 || !values) { context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_inputGlyphOrigin.x = paramToFloat(values, floats, count, 0);
+		context->m_inputGlyphOrigin.y = paramToFloat(values, floats, count, 1);
+		context->m_glyphOrigin = inputVector2(context->m_inputGlyphOrigin);
+		break;
+
+	case VG_CLEAR_COLOR:
+		if(count != 4 || !values) { context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_inputClearColor.set(paramToFloat(values, floats, count, 0),
+								  paramToFloat(values, floats, count, 1),
+								  paramToFloat(values, floats, count, 2),
+								  paramToFloat(values, floats, count, 3),
+								  Color::sRGBA);
+        context->m_clearColor = inputColor(context->m_inputClearColor);
+		break;
+
+	case VG_MASKING:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_masking = ivalue ? VG_TRUE : VG_FALSE;
+		break;
+
+	case VG_SCISSORING:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_scissoring = ivalue ? VG_TRUE : VG_FALSE;
+		break;
+
+	case VG_PIXEL_LAYOUT:
+		if(count != 1 || ivalue < VG_PIXEL_LAYOUT_UNKNOWN || ivalue > VG_PIXEL_LAYOUT_BGR_HORIZONTAL)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_pixelLayout = (VGPixelLayout)ivalue;
+		break;
+
+	case VG_SCREEN_LAYOUT:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		break;	//setting read-only values has no effect
+
+	case VG_FILTER_FORMAT_LINEAR:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_filterFormatLinear = ivalue ? VG_TRUE : VG_FALSE;
+		break;
+
+	case VG_FILTER_FORMAT_PREMULTIPLIED:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		context->m_filterFormatPremultiplied = ivalue ? VG_TRUE : VG_FALSE;
+		break;
+
+	case VG_FILTER_CHANNEL_MASK:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		//undefined bits are ignored
+		context->m_filterChannelMask = (VGbitfield)ivalue;
+		break;
+
+	case VG_MAX_SCISSOR_RECTS:
+	case VG_MAX_DASH_COUNT:
+	case VG_MAX_KERNEL_SIZE:
+	case VG_MAX_SEPARABLE_KERNEL_SIZE:
+	case VG_MAX_COLOR_RAMP_STOPS:
+	case VG_MAX_IMAGE_WIDTH:
+	case VG_MAX_IMAGE_HEIGHT:
+	case VG_MAX_IMAGE_PIXELS:
+	case VG_MAX_IMAGE_BYTES:
+	case VG_MAX_FLOAT:
+	case VG_MAX_GAUSSIAN_STD_DEVIATION:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		break;	//setting read-only values has no effect
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetf(VGParamType type, VGfloat value)
+#else
+void RI_APIENTRY vgSetf(VGParamType type, VGfloat value)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(type == VG_SCISSOR_RECTS || type == VG_STROKE_DASH_PATTERN || type == VG_TILE_FILL_COLOR ||
+				type == VG_CLEAR_COLOR, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//vector type value
+	VGfloat values[1] = {value};
+	setifv(context, type, 1, values, true);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSeti(VGParamType type, VGint value)
+#else
+void RI_APIENTRY vgSeti(VGParamType type, VGint value)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(type == VG_SCISSOR_RECTS || type == VG_STROKE_DASH_PATTERN || type == VG_TILE_FILL_COLOR ||
+				type == VG_CLEAR_COLOR, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//vector type value
+	VGint values[1] = {value};
+	setifv(context, type, 1, values, false);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetiv(VGParamType type, VGint count, const VGint * values)
+#else 
+void RI_APIENTRY vgSetiv(VGParamType type, VGint count, const VGint * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count < 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR((!values && count > 0) || (values && !isAligned(values,4)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	setifv(context, type, count, values, false);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetfv(VGParamType type, VGint count, const VGfloat * values)
+#else
+void RI_APIENTRY vgSetfv(VGParamType type, VGint count, const VGfloat * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count < 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR((!values && count > 0) || (values && !isAligned(values,4)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	setifv(context, type, count, values, true);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void getifv(VGContext* context, VGParamType type, VGint count, void* values, bool floats)
+{
+	switch(type)
+	{
+	case VG_MATRIX_MODE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_matrixMode);
+		break;
+
+	case VG_FILL_RULE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_fillRule);
+		break;
+
+	case VG_IMAGE_QUALITY:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_imageQuality);
+		break;
+
+	case VG_RENDERING_QUALITY:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_renderingQuality);
+		break;
+
+	case VG_BLEND_MODE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_blendMode);
+		break;
+
+	case VG_IMAGE_MODE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_imageMode);
+		break;
+
+	case VG_SCISSOR_RECTS:
+	{
+		if(count > context->m_scissor.size()*4)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		for(int i=0;i<context->m_scissor.size();i++)
+		{
+			intToParam(values, floats, count, i*4+0, context->m_scissor[i].x);
+			intToParam(values, floats, count, i*4+1, context->m_scissor[i].y);
+			intToParam(values, floats, count, i*4+2, context->m_scissor[i].width);
+			intToParam(values, floats, count, i*4+3, context->m_scissor[i].height);
+		}
+		break;
+	}
+
+	case VG_COLOR_TRANSFORM:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_colorTransform);
+		break;
+
+	case VG_COLOR_TRANSFORM_VALUES:
+		if(count > 8) { context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+        {
+            for(int i=0;i<count;i++)
+            {
+                floatToParam(values, floats, count, i, context->m_inputColorTransformValues[i]);
+            }
+        }
+		break;
+
+	case VG_STROKE_LINE_WIDTH:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, context->m_inputStrokeLineWidth);
+		break;
+
+	case VG_STROKE_CAP_STYLE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_strokeCapStyle);
+		break;
+
+	case VG_STROKE_JOIN_STYLE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_strokeJoinStyle);
+		break;
+
+	case VG_STROKE_MITER_LIMIT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, context->m_inputStrokeMiterLimit);
+		break;
+
+	case VG_STROKE_DASH_PATTERN:
+	{
+		if(count > context->m_inputStrokeDashPattern.size())	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		for(int i=0;i<context->m_inputStrokeDashPattern.size();i++)
+			floatToParam(values, floats, count, i, context->m_inputStrokeDashPattern[i]);
+		break;
+	}
+
+	case VG_STROKE_DASH_PHASE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, context->m_inputStrokeDashPhase);
+		break;
+
+	case VG_STROKE_DASH_PHASE_RESET:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_strokeDashPhaseReset);
+		break;
+
+	case VG_TILE_FILL_COLOR:
+		if(count > 4)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, context->m_inputTileFillColor.r);
+		floatToParam(values, floats, count, 1, context->m_inputTileFillColor.g);
+		floatToParam(values, floats, count, 2, context->m_inputTileFillColor.b);
+		floatToParam(values, floats, count, 3, context->m_inputTileFillColor.a);
+		break;
+
+	case VG_CLEAR_COLOR:
+		if(count > 4)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, context->m_inputClearColor.r);
+		floatToParam(values, floats, count, 1, context->m_inputClearColor.g);
+		floatToParam(values, floats, count, 2, context->m_inputClearColor.b);
+		floatToParam(values, floats, count, 3, context->m_inputClearColor.a);
+		break;
+
+	case VG_GLYPH_ORIGIN:
+		if(count > 2)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, context->m_inputGlyphOrigin.x);
+		floatToParam(values, floats, count, 1, context->m_inputGlyphOrigin.y);
+		break;
+
+	case VG_MASKING:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_masking);
+		break;
+
+	case VG_SCISSORING:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_scissoring);
+		break;
+
+	case VG_PIXEL_LAYOUT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_pixelLayout);
+		break;
+
+	case VG_SCREEN_LAYOUT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, VG_PIXEL_LAYOUT_UNKNOWN);
+		break;
+
+	case VG_FILTER_FORMAT_LINEAR:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_filterFormatLinear);
+		break;
+
+	case VG_FILTER_FORMAT_PREMULTIPLIED:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_filterFormatPremultiplied);
+		break;
+
+	case VG_FILTER_CHANNEL_MASK:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, context->m_filterChannelMask);
+		break;
+
+	case VG_MAX_SCISSOR_RECTS:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_SCISSOR_RECTANGLES);
+		break;
+
+	case VG_MAX_DASH_COUNT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_DASH_COUNT);
+		break;
+
+	case VG_MAX_KERNEL_SIZE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_KERNEL_SIZE);
+		break;
+
+	case VG_MAX_SEPARABLE_KERNEL_SIZE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_SEPARABLE_KERNEL_SIZE);
+		break;
+
+	case VG_MAX_COLOR_RAMP_STOPS:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_COLOR_RAMP_STOPS);
+		break;
+
+	case VG_MAX_IMAGE_WIDTH:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_IMAGE_WIDTH);
+		break;
+
+	case VG_MAX_IMAGE_HEIGHT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_IMAGE_HEIGHT);
+		break;
+
+	case VG_MAX_IMAGE_PIXELS:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_IMAGE_PIXELS);
+		break;
+
+	case VG_MAX_IMAGE_BYTES:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, RI_MAX_IMAGE_BYTES);
+		break;
+
+	case VG_MAX_FLOAT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, RI_FLOAT_MAX);
+		break;
+
+	case VG_MAX_GAUSSIAN_STD_DEVIATION:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, RI_MAX_GAUSSIAN_STD_DEVIATION);
+		break;
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGfloat RI_APIENTRY do_vgGetf(VGParamType type)
+#else
+VGfloat RI_APIENTRY vgGetf(VGParamType type)
+#endif
+{
+	RI_GET_CONTEXT(0.0f);
+	RI_IF_ERROR(type == VG_SCISSOR_RECTS || type == VG_STROKE_DASH_PATTERN || type == VG_TILE_FILL_COLOR ||
+				type == VG_CLEAR_COLOR, VG_ILLEGAL_ARGUMENT_ERROR, 0.0f);	//vector type value
+	RIfloat ret = 0.0f;
+	getifv(context, type, 1, &ret, true);
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGint RI_APIENTRY do_vgGeti(VGParamType type)
+#else
+VGint RI_APIENTRY vgGeti(VGParamType type)
+#endif
+{
+	RI_GET_CONTEXT(0);
+	RI_IF_ERROR(type == VG_SCISSOR_RECTS || type == VG_STROKE_DASH_PATTERN || type == VG_TILE_FILL_COLOR ||
+				type == VG_CLEAR_COLOR, VG_ILLEGAL_ARGUMENT_ERROR, 0);	//vector type value
+	VGint ret = 0;
+	getifv(context, type, 1, &ret, false);
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGetiv(VGParamType type, VGint count, VGint * values)
+#else
+void RI_APIENTRY vgGetiv(VGParamType type, VGint count, VGint * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!values || !isAligned(values,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	getifv(context, type, count, values, false);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGetfv(VGParamType type, VGint count, VGfloat * values)
+#else
+void RI_APIENTRY vgGetfv(VGParamType type, VGint count, VGfloat * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!values || !isAligned(values,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	getifv(context, type, count, values, true);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGint RI_APIENTRY do_vgGetVectorSize(VGParamType type)
+#else
+VGint RI_APIENTRY vgGetVectorSize(VGParamType type)
+#endif
+{
+	RI_GET_CONTEXT(0);
+	VGint ret = 0;
+	switch(type)
+	{
+	case VG_MATRIX_MODE:
+	case VG_FILL_RULE:
+	case VG_IMAGE_QUALITY:
+	case VG_RENDERING_QUALITY:
+	case VG_BLEND_MODE:
+	case VG_IMAGE_MODE:
+		ret = 1;
+		break;
+
+	case VG_SCISSOR_RECTS:
+		ret = 4*context->m_scissor.size();
+		break;
+
+    case VG_COLOR_TRANSFORM:
+        ret = 1;
+        break;
+
+    case VG_COLOR_TRANSFORM_VALUES:
+        ret = 8;
+        break;
+
+	case VG_STROKE_LINE_WIDTH:
+	case VG_STROKE_CAP_STYLE:
+	case VG_STROKE_JOIN_STYLE:
+	case VG_STROKE_MITER_LIMIT:
+		ret = 1;
+		break;
+
+	case VG_STROKE_DASH_PATTERN:
+		ret = context->m_inputStrokeDashPattern.size();
+		break;
+
+	case VG_STROKE_DASH_PHASE:
+	case VG_STROKE_DASH_PHASE_RESET:
+		ret = 1;
+		break;
+
+	case VG_TILE_FILL_COLOR:
+	case VG_CLEAR_COLOR:
+		ret = 4;
+		break;
+
+	case VG_GLYPH_ORIGIN:
+		ret = 2;
+		break;
+
+	case VG_MASKING:
+	case VG_SCISSORING:
+	case VG_PIXEL_LAYOUT:
+	case VG_SCREEN_LAYOUT:
+	case VG_FILTER_FORMAT_LINEAR:
+	case VG_FILTER_FORMAT_PREMULTIPLIED:
+	case VG_FILTER_CHANNEL_MASK:
+	case VG_MAX_SCISSOR_RECTS:
+	case VG_MAX_DASH_COUNT:
+	case VG_MAX_KERNEL_SIZE:
+	case VG_MAX_SEPARABLE_KERNEL_SIZE:
+	case VG_MAX_COLOR_RAMP_STOPS:
+	case VG_MAX_IMAGE_WIDTH:
+	case VG_MAX_IMAGE_HEIGHT:
+	case VG_MAX_IMAGE_PIXELS:
+	case VG_MAX_IMAGE_BYTES:
+	case VG_MAX_FLOAT:
+	case VG_MAX_GAUSSIAN_STD_DEVIATION:
+		ret = 1;
+		break;
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void setPaintParameterifv(VGContext* context, Paint* paint, VGPaintParamType paramType, VGint count, const void* values, bool floats)
+{
+	RI_ASSERT(context);
+	RI_ASSERT(paint);
+
+	int ivalue = paramToInt(values, floats, count, 0);
+
+	switch(paramType)
+	{
+	case VG_PAINT_TYPE:
+		if(count != 1 || ivalue < VG_PAINT_TYPE_COLOR || ivalue > VG_PAINT_TYPE_PATTERN)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		paint->m_paintType = (VGPaintType)ivalue;
+		break;
+
+	case VG_PAINT_COLOR:
+		if(count != 4)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		paint->m_inputPaintColor.set(paramToFloat(values, floats, count, 0),
+									 paramToFloat(values, floats, count, 1),
+									 paramToFloat(values, floats, count, 2),
+									 paramToFloat(values, floats, count, 3),
+									 Color::sRGBA);
+		paint->m_paintColor = inputColor(paint->m_inputPaintColor);
+		paint->m_paintColor.clamp();
+		paint->m_paintColor.premultiply();
+		break;
+
+	case VG_PAINT_COLOR_RAMP_SPREAD_MODE:
+		if(count != 1 || ivalue < VG_COLOR_RAMP_SPREAD_PAD || ivalue > VG_COLOR_RAMP_SPREAD_REFLECT)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		paint->m_colorRampSpreadMode = (VGColorRampSpreadMode)ivalue;
+		break;
+
+	case VG_PAINT_COLOR_RAMP_STOPS:
+	{
+		int numStops = count/5;
+		if(count != numStops*5)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }	//count must be a multiple of five
+		try
+		{
+			Array<Paint::GradientStop> colorRampStops;
+			Array<Paint::GradientStop> inputColorRampStops;
+			RIfloat prevOffset = -RI_FLOAT_MAX;
+			bool valid = true;
+			for(int i=0;i<RI_INT_MIN(numStops, RI_MAX_COLOR_RAMP_STOPS);i++)	//NOTE: ignores the final stop if there is not enough parameters
+			{
+				Paint::GradientStop gs;
+				gs.offset = paramToFloat(values, floats, count, i*5);
+				gs.color.set(paramToFloat(values, floats, count, i*5+1),
+							 paramToFloat(values, floats, count, i*5+2),
+							 paramToFloat(values, floats, count, i*5+3),
+							 paramToFloat(values, floats, count, i*5+4),
+							 Color::sRGBA);
+				inputColorRampStops.push_back(gs);
+
+				if(gs.offset < prevOffset)
+					valid = false;	//decreasing sequence, ignore it
+
+				if(gs.offset >= 0.0f && gs.offset <= 1.0f)
+				{
+					gs.color.clamp();
+
+					if(!colorRampStops.size() && gs.offset > 0.0f)
+					{	//the first valid stop is not at 0, replicate the first one
+						RIfloat tmp = gs.offset;
+						gs.offset = 0.0f;
+						colorRampStops.push_back(gs);	//throws bad_alloc
+						gs.offset = tmp;
+					}
+					colorRampStops.push_back(gs);	//throws bad_alloc
+				}
+				prevOffset = gs.offset;
+			}
+			if(valid && colorRampStops.size() && colorRampStops[colorRampStops.size()-1].offset < 1.0f)
+			{	//there is at least one stop, but the last one is not at 1, replicate the last one
+				Paint::GradientStop gs = colorRampStops[colorRampStops.size()-1];
+				gs.offset = 1.0f;
+				colorRampStops.push_back(gs);	//throws bad_alloc
+			}
+			if(!valid || !colorRampStops.size())
+			{	//there are no valid stops, add implicit stops
+				colorRampStops.clear();
+				Paint::GradientStop gs;
+				gs.offset = 0.0f;
+				gs.color.set(0,0,0,1,Color::sRGBA);
+				colorRampStops.push_back(gs);	//throws bad_alloc
+				gs.offset = 1.0f;
+				gs.color.set(1,1,1,1,Color::sRGBA);
+				colorRampStops.push_back(gs);	//throws bad_alloc
+			}
+			RI_ASSERT(colorRampStops.size() >= 2 && colorRampStops.size() <= RI_MAX_COLOR_RAMP_STOPS);
+			paint->m_colorRampStops.swap(colorRampStops);	//set paint array
+			paint->m_inputColorRampStops.swap(inputColorRampStops);	//set paint array
+		}
+		catch(std::bad_alloc)
+		{
+			context->setError(VG_OUT_OF_MEMORY_ERROR);
+		}
+		break;
+	}
+
+	case VG_PAINT_COLOR_RAMP_PREMULTIPLIED:
+		if(count != 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		paint->m_colorRampPremultiplied = ivalue ? VG_TRUE : VG_FALSE;
+		break;
+
+	case VG_PAINT_LINEAR_GRADIENT:
+		if(count != 4)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		paint->m_inputLinearGradientPoint0.set(paramToFloat(values, floats, count, 0),
+										  paramToFloat(values, floats, count, 1));
+		paint->m_inputLinearGradientPoint1.set(paramToFloat(values, floats, count, 2),
+										  paramToFloat(values, floats, count, 3));
+        paint->m_linearGradientPoint0 = inputVector2(paint->m_inputLinearGradientPoint0);
+        paint->m_linearGradientPoint1 = inputVector2(paint->m_inputLinearGradientPoint1);
+		break;
+
+	case VG_PAINT_RADIAL_GRADIENT:
+		if(count != 5)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		paint->m_inputRadialGradientCenter.set(paramToFloat(values, floats, count, 0),
+										  paramToFloat(values, floats, count, 1));
+		paint->m_inputRadialGradientFocalPoint.set(paramToFloat(values, floats, count, 2),
+											  paramToFloat(values, floats, count, 3));
+		paint->m_inputRadialGradientRadius = paramToFloat(values, floats, count, 4);
+        paint->m_radialGradientCenter = inputVector2(paint->m_inputRadialGradientCenter);
+        paint->m_radialGradientFocalPoint = inputVector2(paint->m_inputRadialGradientFocalPoint);
+        paint->m_radialGradientRadius = inputFloat(paint->m_inputRadialGradientRadius);
+		break;
+
+	case VG_PAINT_PATTERN_TILING_MODE:
+		if(count != 1 || ivalue < VG_TILE_FILL || ivalue > VG_TILE_REFLECT)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		paint->m_patternTilingMode = (VGTilingMode)ivalue;
+		break;
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetParameterf(VGHandle object, VGint paramType, VGfloat value)
+#else
+void RI_APIENTRY vgSetParameterf(VGHandle object, VGint paramType, VGfloat value)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isMaskLayer = context->isValidMaskLayer(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isMaskLayer && !isFont, VG_BAD_HANDLE_ERROR, RI_NO_RETVAL); //invalid object handle
+	RI_IF_ERROR(paramType == VG_PAINT_COLOR || paramType == VG_PAINT_COLOR_RAMP_STOPS || paramType == VG_PAINT_LINEAR_GRADIENT ||
+				paramType == VG_PAINT_RADIAL_GRADIENT, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL); //vector valued parameter
+	VGfloat values[1] = {value};
+	if(isImage)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isPath && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_IMAGE_FORMAT || paramType > VG_IMAGE_HEIGHT)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPath)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_PATH_FORMAT || paramType > VG_PATH_NUM_COORDS)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isMaskLayer && !isFont);
+		setPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, 1, values, true);
+	}
+	else if(isMaskLayer)
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isFont);
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+    else
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isMaskLayer && isFont);
+        if (paramType != VG_FONT_NUM_GLYPHS)
+    		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+    }
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetParameteri(VGHandle object, VGint paramType, VGint value)
+#else
+void RI_APIENTRY vgSetParameteri(VGHandle object, VGint paramType, VGint value)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isMaskLayer = context->isValidMaskLayer(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isMaskLayer && !isFont, VG_BAD_HANDLE_ERROR, RI_NO_RETVAL); //invalid object handle
+	RI_IF_ERROR(paramType == VG_PAINT_COLOR || paramType == VG_PAINT_COLOR_RAMP_STOPS || paramType == VG_PAINT_LINEAR_GRADIENT ||
+				paramType == VG_PAINT_RADIAL_GRADIENT, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//vector valued parameter
+	VGint values[1] = {value};
+	if(isImage)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isPath && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_IMAGE_FORMAT || paramType > VG_IMAGE_HEIGHT)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPath)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_PATH_FORMAT || paramType > VG_PATH_NUM_COORDS)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isMaskLayer && !isFont);
+		setPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, 1, values, false);
+	}
+	else if(isMaskLayer)
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isFont);
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+    else
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isMaskLayer && isFont);
+        if (paramType != VG_FONT_NUM_GLYPHS)
+    		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+    }
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetParameterfv(VGHandle object, VGint paramType, VGint count, const VGfloat * values)
+#else
+void RI_APIENTRY vgSetParameterfv(VGHandle object, VGint paramType, VGint count, const VGfloat * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count < 0 || (!values && count > 0) || (values && !isAligned(values,4)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isMaskLayer = context->isValidMaskLayer(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isMaskLayer && !isFont, VG_BAD_HANDLE_ERROR, RI_NO_RETVAL); //invalid object handle
+	if(isImage)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isPath && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_IMAGE_FORMAT || paramType > VG_IMAGE_HEIGHT)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPath)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_PATH_FORMAT || paramType > VG_PATH_NUM_COORDS)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isMaskLayer && !isFont);
+		setPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, count, values, true);
+	}
+	else if(isMaskLayer)
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isFont);
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+    else
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isMaskLayer && isFont);
+        if (paramType != VG_FONT_NUM_GLYPHS)
+    		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+    }
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetParameteriv(VGHandle object, VGint paramType, VGint count, const VGint * values)
+#else
+void RI_APIENTRY vgSetParameteriv(VGHandle object, VGint paramType, VGint count, const VGint * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count < 0 || (!values && count > 0) || (values && !isAligned(values,4)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isMaskLayer = context->isValidMaskLayer(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isMaskLayer && !isFont, VG_BAD_HANDLE_ERROR, RI_NO_RETVAL); //invalid object handle
+	if(isImage)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isPath && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_IMAGE_FORMAT || paramType > VG_IMAGE_HEIGHT)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPath)
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPaint && !isMaskLayer && !isFont);
+		if(paramType < VG_PATH_FORMAT || paramType > VG_PATH_NUM_COORDS)
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isMaskLayer && !isFont);
+		setPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, count, values, false);
+	}
+	else if(isMaskLayer)
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isFont);
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+	}
+    else
+	{	//read only, the function does nothing
+		RI_ASSERT(!isImage && !isPath && !isPaint && !isMaskLayer && isFont);
+        if (paramType != VG_FONT_NUM_GLYPHS)
+    		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+    }
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void getPaintParameterifv(VGContext* context, Paint* paint, VGPaintParamType type, VGint count, void* values, bool floats)
+{
+	switch(type)
+	{
+	case VG_PAINT_TYPE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, paint->m_paintType);
+		break;
+
+	case VG_PAINT_COLOR:
+		if(count > 4)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, paint->m_inputPaintColor.r);
+		floatToParam(values, floats, count, 1, paint->m_inputPaintColor.g);
+		floatToParam(values, floats, count, 2, paint->m_inputPaintColor.b);
+		floatToParam(values, floats, count, 3, paint->m_inputPaintColor.a);
+		break;
+
+	case VG_PAINT_COLOR_RAMP_SPREAD_MODE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, paint->m_colorRampSpreadMode);
+		break;
+
+	case VG_PAINT_COLOR_RAMP_STOPS:
+		{
+			if(count > paint->m_inputColorRampStops.size()*5)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+			int j = 0;
+			for(int i=0;i<paint->m_inputColorRampStops.size();i++)
+			{
+				floatToParam(values, floats, count, j++, paint->m_inputColorRampStops[i].offset);
+				floatToParam(values, floats, count, j++, paint->m_inputColorRampStops[i].color.r);
+				floatToParam(values, floats, count, j++, paint->m_inputColorRampStops[i].color.g);
+				floatToParam(values, floats, count, j++, paint->m_inputColorRampStops[i].color.b);
+				floatToParam(values, floats, count, j++, paint->m_inputColorRampStops[i].color.a);
+			}
+			break;
+		}
+
+	case VG_PAINT_COLOR_RAMP_PREMULTIPLIED:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, paint->m_colorRampPremultiplied);
+		break;
+
+	case VG_PAINT_LINEAR_GRADIENT:
+		if(count > 4)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, paint->m_inputLinearGradientPoint0.x);
+		floatToParam(values, floats, count, 1, paint->m_inputLinearGradientPoint0.y);
+		floatToParam(values, floats, count, 2, paint->m_inputLinearGradientPoint1.x);
+		floatToParam(values, floats, count, 3, paint->m_inputLinearGradientPoint1.y);
+		break;
+
+	case VG_PAINT_RADIAL_GRADIENT:
+		if(count > 5)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, paint->m_inputRadialGradientCenter.x);
+		floatToParam(values, floats, count, 1, paint->m_inputRadialGradientCenter.y);
+		floatToParam(values, floats, count, 2, paint->m_inputRadialGradientFocalPoint.x);
+		floatToParam(values, floats, count, 3, paint->m_inputRadialGradientFocalPoint.y);
+		floatToParam(values, floats, count, 4, paint->m_inputRadialGradientRadius);
+		break;
+
+	case VG_PAINT_PATTERN_TILING_MODE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, paint->m_patternTilingMode);
+		break;
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void getPathParameterifv(VGContext* context, Path* path, VGPathParamType type, VGint count, void* values, bool floats)
+{
+	switch(type)
+	{
+	case VG_PATH_FORMAT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, path->getFormat());
+		break;
+
+	case VG_PATH_DATATYPE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, path->getDatatype());
+		break;
+
+	case VG_PATH_SCALE:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, path->getScale());
+		break;
+
+	case VG_PATH_BIAS:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		floatToParam(values, floats, count, 0, path->getBias());
+		break;
+
+	case VG_PATH_NUM_SEGMENTS:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, path->getNumSegments());
+		break;
+
+	case VG_PATH_NUM_COORDS:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, path->getNumCoordinates());
+		break;
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void getImageParameterifv(VGContext* context, Image* image, VGImageParamType type, VGint count, void* values, bool floats)
+{
+	switch(type)
+	{
+	case VG_IMAGE_FORMAT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		RI_ASSERT(isValidImageFormat(image->getDescriptor().format));
+		intToParam(values, floats, count, 0, image->getDescriptor().format);
+		break;
+
+	case VG_IMAGE_WIDTH:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, image->getWidth());
+		break;
+
+	case VG_IMAGE_HEIGHT:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, image->getHeight());
+		break;
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void getFontParameterifv(VGContext* context, Font* font, VGFontParamType type, VGint count, void* values, bool floats)
+{
+	switch(type)
+	{
+	case VG_FONT_NUM_GLYPHS:
+		if(count > 1)	{ context->setError(VG_ILLEGAL_ARGUMENT_ERROR); return; }
+		intToParam(values, floats, count, 0, font->getNumGlyphs());
+		break;
+
+	default:
+		context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid VGParamType
+		break;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGfloat RI_APIENTRY do_vgGetParameterf(VGHandle object, VGint paramType)
+#else
+VGfloat RI_APIENTRY vgGetParameterf(VGHandle object, VGint paramType)
+#endif
+{
+	RI_GET_CONTEXT(0.0f);
+	RI_IF_ERROR(paramType == VG_PAINT_COLOR || paramType == VG_PAINT_COLOR_RAMP_STOPS || paramType == VG_PAINT_LINEAR_GRADIENT ||
+				paramType == VG_PAINT_RADIAL_GRADIENT, VG_ILLEGAL_ARGUMENT_ERROR, 0.0f);	//vector valued parameter
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isFont, VG_BAD_HANDLE_ERROR, 0.0f);	//invalid object handle
+	VGfloat ret = 0.0f;
+	if(isImage)
+	{
+		RI_ASSERT(!isPath && !isPaint && !isFont);
+		getImageParameterifv(context, (Image*)object, (VGImageParamType)paramType, 1, &ret, true);
+	}
+	else if(isPath)
+	{
+		RI_ASSERT(!isImage && !isPaint && !isFont);
+		getPathParameterifv(context, (Path*)object, (VGPathParamType)paramType, 1, &ret, true);
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isFont);
+		getPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, 1, &ret, true);
+	}
+	else
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && isFont);
+		getFontParameterifv(context, (Font*)object, (VGFontParamType)paramType, 1, &ret, true);
+	}
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGint RI_APIENTRY do_vgGetParameteri(VGHandle object, VGint paramType)
+#else
+VGint RI_APIENTRY vgGetParameteri(VGHandle object, VGint paramType)
+#endif
+{
+	RI_GET_CONTEXT(0);
+	RI_IF_ERROR(paramType == VG_PAINT_COLOR || paramType == VG_PAINT_COLOR_RAMP_STOPS || paramType == VG_PAINT_LINEAR_GRADIENT ||
+				paramType == VG_PAINT_RADIAL_GRADIENT, VG_ILLEGAL_ARGUMENT_ERROR, 0);	//vector valued parameter
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isFont, VG_BAD_HANDLE_ERROR, 0);	//invalid object handle
+	VGint ret = 0;
+	if(isImage)
+	{
+		RI_ASSERT(!isPath && !isPaint && !isFont);
+		getImageParameterifv(context, (Image*)object, (VGImageParamType)paramType, 1, &ret, false);
+	}
+	else if(isPath)
+	{
+		RI_ASSERT(!isImage && !isPaint && !isFont);
+		getPathParameterifv(context, (Path*)object, (VGPathParamType)paramType, 1, &ret, false);
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isFont);
+		getPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, 1, &ret, false);
+	}
+	else
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && isFont);
+		getFontParameterifv(context, (Font*)object, (VGFontParamType)paramType, 1, &ret, false);
+	}
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGetParameterfv(VGHandle object, VGint paramType, VGint count, VGfloat * values)
+#else
+void RI_APIENTRY vgGetParameterfv(VGHandle object, VGint paramType, VGint count, VGfloat * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count <= 0 || !values || !isAligned(values,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isFont, VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid object handle
+	if(isImage)
+	{
+		RI_ASSERT(!isPath && !isPaint && !isFont);
+		getImageParameterifv(context, (Image*)object, (VGImageParamType)paramType, count, values, true);
+	}
+	else if(isPath)
+	{
+		RI_ASSERT(!isImage && !isPaint && !isFont);
+		getPathParameterifv(context, (Path*)object, (VGPathParamType)paramType, count, values, true);
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isFont);
+		getPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, count, values, true);
+	}
+	else
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && isFont);
+		getFontParameterifv(context, (Font*)object, (VGFontParamType)paramType, count, values, true);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGetParameteriv(VGHandle object, VGint paramType, VGint count, VGint * values)
+#else
+void RI_APIENTRY vgGetParameteriv(VGHandle object, VGint paramType, VGint count, VGint * values)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(count <= 0 || !values || !isAligned(values,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isFont, VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid object handle
+	if(isImage)
+	{
+		RI_ASSERT(!isPath && !isPaint && !isFont);
+		getImageParameterifv(context, (Image*)object, (VGImageParamType)paramType, count, values, false);
+	}
+	else if(isPath)
+	{
+		RI_ASSERT(!isImage && !isPaint && !isFont);
+		getPathParameterifv(context, (Path*)object, (VGPathParamType)paramType, count, values, false);
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isFont);
+		getPaintParameterifv(context, (Paint*)object, (VGPaintParamType)paramType, count, values, false);
+	}
+	else
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && isFont);
+		getFontParameterifv(context, (Font*)object, (VGFontParamType)paramType, count, values, false);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGint RI_APIENTRY do_vgGetParameterVectorSize(VGHandle object, VGint paramType)
+#else
+VGint RI_APIENTRY vgGetParameterVectorSize(VGHandle object, VGint paramType)
+#endif
+{
+	RI_GET_CONTEXT(0);
+	bool isImage = context->isValidImage(object);
+	bool isPath = context->isValidPath(object);
+	bool isPaint = context->isValidPaint(object);
+	bool isFont = context->isValidFont(object);
+	RI_IF_ERROR(!isImage && !isPath && !isPaint && !isFont, VG_BAD_HANDLE_ERROR, 0);	//invalid object handle
+	int ret = 0;
+	if(isImage)
+	{
+		RI_ASSERT(!isPath && !isPaint && !isFont);
+		switch(paramType)
+		{
+		case VG_IMAGE_FORMAT:
+		case VG_IMAGE_WIDTH:
+		case VG_IMAGE_HEIGHT:
+			ret = 1;
+			break;
+
+		default:
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid paramType
+			break;
+		}
+	}
+	else if(isPath)
+	{
+		RI_ASSERT(!isImage && !isPaint && !isFont);
+		switch(paramType)
+		{
+		case VG_PATH_FORMAT:
+		case VG_PATH_DATATYPE:
+		case VG_PATH_SCALE:
+		case VG_PATH_BIAS:
+		case VG_PATH_NUM_SEGMENTS:
+		case VG_PATH_NUM_COORDS:
+			ret = 1;
+			break;
+
+		default:
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid paramType
+			break;
+		}
+	}
+	else if(isPaint)
+	{
+		RI_ASSERT(!isImage && !isPath && !isFont);
+		switch(paramType)
+		{
+		case VG_PAINT_TYPE:
+		case VG_PAINT_COLOR_RAMP_SPREAD_MODE:
+		case VG_PAINT_PATTERN_TILING_MODE:
+			ret = 1;
+			break;
+
+		case VG_PAINT_COLOR:
+		case VG_PAINT_LINEAR_GRADIENT:
+			ret = 4;
+			break;
+
+		case VG_PAINT_COLOR_RAMP_STOPS:
+			ret = ((Paint*)object)->m_inputColorRampStops.size() * 5;
+			break;
+
+		case VG_PAINT_COLOR_RAMP_PREMULTIPLIED:
+			ret = 1;
+			break;
+
+		case VG_PAINT_RADIAL_GRADIENT:
+			ret = 5;
+			break;
+			
+		default:
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid paramType
+			break;
+		}
+	}
+	else
+	{
+		RI_ASSERT(!isImage && !isPath && !isPaint && isFont);
+		switch(paramType)
+		{
+		case VG_FONT_NUM_GLYPHS:
+			ret = 1;
+			break;
+
+		default:
+			context->setError(VG_ILLEGAL_ARGUMENT_ERROR);	//invalid paramType
+			break;
+		}
+	}
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static Matrix3x3* getCurrentMatrix(VGContext* context)
+{
+	RI_ASSERT(context);
+	switch(context->m_matrixMode)
+	{
+	case VG_MATRIX_PATH_USER_TO_SURFACE:
+		return &context->m_pathUserToSurface;
+
+	case VG_MATRIX_IMAGE_USER_TO_SURFACE:
+		return &context->m_imageUserToSurface;
+
+	case VG_MATRIX_FILL_PAINT_TO_USER:
+		return &context->m_fillPaintToUser;
+
+	case VG_MATRIX_STROKE_PAINT_TO_USER:
+		return &context->m_strokePaintToUser;
+
+	default:
+		RI_ASSERT(context->m_matrixMode == VG_MATRIX_GLYPH_USER_TO_SURFACE);
+		return &context->m_glyphUserToSurface;
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgLoadIdentity(void)
+#else
+void RI_APIENTRY vgLoadIdentity(void)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	Matrix3x3* d = getCurrentMatrix(context);
+	d->identity();
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgLoadMatrix(const VGfloat * m)
+#else
+void RI_APIENTRY vgLoadMatrix(const VGfloat * m)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!m || !isAligned(m,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	Matrix3x3* d = getCurrentMatrix(context);
+	d->set(inputFloat(m[0]), inputFloat(m[3]), inputFloat(m[6]),
+		   inputFloat(m[1]), inputFloat(m[4]), inputFloat(m[7]),
+		   inputFloat(m[2]), inputFloat(m[5]), inputFloat(m[8]));
+	if(context->m_matrixMode != VG_MATRIX_IMAGE_USER_TO_SURFACE)
+	{
+		(*d)[2].set(0,0,1);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGetMatrix(VGfloat * m)
+#else
+void RI_APIENTRY vgGetMatrix(VGfloat * m)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!m || !isAligned(m,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	Matrix3x3* d = getCurrentMatrix(context);
+	m[0] = (*d)[0][0];
+	m[1] = (*d)[1][0];
+	m[2] = (*d)[2][0];
+	m[3] = (*d)[0][1];
+	m[4] = (*d)[1][1];
+	m[5] = (*d)[2][1];
+	m[6] = (*d)[0][2];
+	m[7] = (*d)[1][2];
+	m[8] = (*d)[2][2];
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgMultMatrix(const VGfloat * m)
+#else
+void RI_APIENTRY vgMultMatrix(const VGfloat * m)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!m || !isAligned(m,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	Matrix3x3 n(inputFloat(m[0]), inputFloat(m[3]), inputFloat(m[6]),
+				inputFloat(m[1]), inputFloat(m[4]), inputFloat(m[7]),
+				inputFloat(m[2]), inputFloat(m[5]), inputFloat(m[8]));
+	if(context->m_matrixMode != VG_MATRIX_IMAGE_USER_TO_SURFACE)
+		n[2].set(0,0,1);
+
+	Matrix3x3* d = getCurrentMatrix(context);
+	*d *= n;
+	if(context->m_matrixMode != VG_MATRIX_IMAGE_USER_TO_SURFACE)
+	{
+		(*d)[2].set(0,0,1);	//force affinity
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgTranslate(VGfloat tx, VGfloat ty)
+#else
+void RI_APIENTRY vgTranslate(VGfloat tx, VGfloat ty)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	Matrix3x3 n(1, 0, inputFloat(tx),
+				0, 1, inputFloat(ty),
+				0, 0, 1 );
+	Matrix3x3* d = getCurrentMatrix(context);
+	*d *= n;
+	if(context->m_matrixMode != VG_MATRIX_IMAGE_USER_TO_SURFACE)
+	{
+		(*d)[2].set(0,0,1);	//force affinity
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgScale(VGfloat sx, VGfloat sy)
+#else
+void RI_APIENTRY vgScale(VGfloat sx, VGfloat sy)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	Matrix3x3 n(inputFloat(sx), 0,              0,
+				0,              inputFloat(sy), 0,
+				0,              0,              1 );
+	Matrix3x3* d = getCurrentMatrix(context);
+	*d *= n;
+	if(context->m_matrixMode != VG_MATRIX_IMAGE_USER_TO_SURFACE)
+	{
+		(*d)[2].set(0,0,1);	//force affinity
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgShear(VGfloat shx, VGfloat shy)
+#else
+void RI_APIENTRY vgShear(VGfloat shx, VGfloat shy)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	Matrix3x3 n(1,               inputFloat(shx), 0,
+				inputFloat(shy), 1,               0,
+				0,               0,               1);
+	Matrix3x3* d = getCurrentMatrix(context);
+	*d *= n;
+	if(context->m_matrixMode != VG_MATRIX_IMAGE_USER_TO_SURFACE)
+	{
+		(*d)[2].set(0,0,1);	//force affinity
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgRotate(VGfloat angle)
+#else
+void RI_APIENTRY vgRotate(VGfloat angle)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RIfloat a = RI_DEG_TO_RAD(inputFloat(angle));
+	Matrix3x3 n((RIfloat)cos(a), -(RIfloat)sin(a), 0,
+				(RIfloat)sin(a),  (RIfloat)cos(a), 0,
+				0,              0,             1 );
+	Matrix3x3* d = getCurrentMatrix(context);
+	*d *= n;
+	if(context->m_matrixMode != VG_MATRIX_IMAGE_USER_TO_SURFACE)
+	{
+		(*d)[2].set(0,0,1);	//force affinity
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgMask(VGHandle mask, VGMaskOperation operation, VGint x, VGint y, VGint width, VGint height)
+#else
+void RI_APIENTRY vgMask(VGHandle mask, VGMaskOperation operation, VGint x, VGint y, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+    bool isImage = context->isValidImage(mask);
+    bool isMaskLayer = context->isValidMaskLayer(mask);
+	RI_IF_ERROR(operation != VG_CLEAR_MASK && operation != VG_FILL_MASK && !isImage && !isMaskLayer, VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(operation != VG_CLEAR_MASK && operation != VG_FILL_MASK && isImage && eglvgIsInUse((Image*)mask), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(operation < VG_CLEAR_MASK || operation > VG_SUBTRACT_MASK, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* drawable = context->getCurrentDrawable();
+	RI_IF_ERROR(isMaskLayer && drawable->getNumSamples() != ((Surface*)mask)->getNumSamples(), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    if(!drawable || !drawable->getMaskBuffer())
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment or context has no mask buffer
+    }
+    if(isImage)
+        drawable->getMaskBuffer()->mask((Image*)mask, operation, x, y, width, height);
+    else
+        drawable->getMaskBuffer()->mask((Surface*)mask, operation, x, y, width, height);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static void renderStroke(const VGContext* context, int w, int h, int numSamples, Path* path, Rasterizer& rasterizer, const PixelPipe* pixelPipe, const Matrix3x3& userToSurface)
+{
+    RI_ASSERT(context);
+    RI_ASSERT(w > 0 && h > 0 && numSamples >= 1 && numSamples <= 32);
+
+    RIuint32* covBuffer = RI_NEW_ARRAY(RIuint32, w*h);
+    memset(covBuffer, 0, w*h*sizeof(RIuint32));
+
+    rasterizer.setup(0, 0, w, h, VG_NON_ZERO, NULL, covBuffer);
+    path->stroke(userToSurface, rasterizer, context->m_strokeDashPattern, context->m_strokeDashPhase, context->m_strokeDashPhaseReset ? true : false,
+                 context->m_strokeLineWidth, context->m_strokeCapStyle, context->m_strokeJoinStyle, RI_MAX(context->m_strokeMiterLimit, 1.0f));	//throws bad_alloc
+
+    int sx,sy,ex,ey;
+    rasterizer.getBBox(sx,sy,ex,ey);
+    RI_ASSERT(sx >= 0 && sx <= w);
+    RI_ASSERT(sy >= 0 && sy <= h);
+    RI_ASSERT(ex >= 0 && ex <= w);
+    RI_ASSERT(ey >= 0 && ey <= h);
+
+    for(int j=sy;j<ey;j++)
+    {
+        for(int i=sx;i<ex;i++)
+        {
+            unsigned int c = covBuffer[j*w+i];
+            if(c)
+            {
+                int coverage = 0;
+                for(int k=0;k<numSamples;k++)
+                {
+                    if(c & (1<<k))
+                        coverage++;
+                }
+                pixelPipe->pixelPipe(i, j, (RIfloat)coverage/(RIfloat)numSamples, c);
+            }
+        }
+    }
+    RI_DELETE_ARRAY(covBuffer);
+}
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgRenderToMask(VGPath path, VGbitfield paintModes, VGMaskOperation operation)
+#else
+void RI_APIENTRY vgRenderToMask(VGPath path, VGbitfield paintModes, VGMaskOperation operation)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	RI_IF_ERROR(!paintModes || (paintModes & ~(VG_FILL_PATH | VG_STROKE_PATH)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid paint mode
+	RI_IF_ERROR(operation < VG_CLEAR_MASK || operation > VG_SUBTRACT_MASK, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* curr = context->getCurrentDrawable();
+    if(!curr || !curr->getMaskBuffer())
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment or context has no mask buffer
+    }
+
+    if(operation == VG_CLEAR_MASK || operation == VG_FILL_MASK)
+    {
+        Surface* dummy = NULL;
+        curr->getMaskBuffer()->mask(dummy, operation, 0, 0, curr->getWidth(), curr->getHeight());
+        RI_RETURN(RI_NO_RETVAL);
+    }
+
+	try
+	{
+        Drawable drawable(Color::formatToDescriptor(VG_A_8), curr->getWidth(), curr->getHeight(), curr->getNumSamples(), 1);    //TODO 0 mask bits (mask buffer is not used)
+
+        Rasterizer rasterizer;
+        if(context->m_scissoring)
+            rasterizer.setScissor(context->m_scissor);	//throws bad_alloc
+        int numSamples = rasterizer.setupSamplingPattern(context->m_renderingQuality, drawable.getNumSamples());
+
+        PixelPipe pixelPipe;
+        pixelPipe.setDrawable(&drawable);
+        pixelPipe.setMask(false);
+        pixelPipe.setPaint(NULL);   //use default paint (solid color alpha = 1)
+        pixelPipe.setBlendMode(VG_BLEND_SRC);   //write solid color * coverage to dest
+
+        Matrix3x3 userToSurface = context->m_pathUserToSurface;
+        userToSurface[2].set(0,0,1);	//force affinity
+
+        if(paintModes & VG_FILL_PATH)
+        {
+            drawable.getColorBuffer()->clear(Color(0,0,0,0,drawable.getColorBuffer()->getDescriptor().internalFormat), 0, 0, drawable.getWidth(), drawable.getHeight());
+            ((Path*)path)->fill(userToSurface, rasterizer);	//throws bad_alloc
+            rasterizer.setup(0, 0, drawable.getWidth(), drawable.getHeight(), context->m_fillRule, &pixelPipe, NULL);
+            rasterizer.fill();	//throws bad_alloc
+            curr->getMaskBuffer()->mask(drawable.getColorBuffer(), operation, 0, 0, drawable.getWidth(), drawable.getHeight());
+        }
+
+        if(paintModes & VG_STROKE_PATH && context->m_strokeLineWidth > 0.0f)
+        {
+            drawable.getColorBuffer()->clear(Color(0,0,0,0,drawable.getColorBuffer()->getDescriptor().internalFormat), 0, 0, drawable.getWidth(), drawable.getHeight());
+            renderStroke(context, drawable.getWidth(), drawable.getHeight(), numSamples, (Path*)path, rasterizer, &pixelPipe, userToSurface);
+            curr->getMaskBuffer()->mask(drawable.getColorBuffer(), operation, 0, 0, drawable.getWidth(), drawable.getHeight());
+        }
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGMaskLayer RI_APIENTRY do_vgCreateMaskLayer(VGint width, VGint height)
+#else
+VGMaskLayer RI_APIENTRY vgCreateMaskLayer(VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+	RI_IF_ERROR(width > RI_MAX_IMAGE_WIDTH || height > RI_MAX_IMAGE_HEIGHT || width*height > RI_MAX_IMAGE_PIXELS ||
+				width*height > RI_MAX_IMAGE_BYTES, VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+    Drawable* curr = context->getCurrentDrawable();
+    if(!curr || !curr->getMaskBuffer())
+        RI_RETURN(VG_INVALID_HANDLE);   //no current drawing surface
+
+	Surface* layer = NULL;
+	try
+	{
+		layer = RI_NEW(Surface, (Color::formatToDescriptor(VG_A_8), width, height, curr->getNumSamples()));	//throws bad_alloc
+		RI_ASSERT(layer);
+		context->m_maskLayerManager->addResource(layer, context);	//throws bad_alloc
+        layer->clear(Color(1,1,1,1,Color::sRGBA), 0, 0, width, height);
+		RI_RETURN((VGMaskLayer)layer);
+	}
+	catch(std::bad_alloc)
+	{
+		RI_DELETE(layer);
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+		RI_RETURN(VG_INVALID_HANDLE);
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDestroyMaskLayer(VGMaskLayer maskLayer)
+#else
+void RI_APIENTRY vgDestroyMaskLayer(VGMaskLayer maskLayer)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidMaskLayer(maskLayer), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid handle
+
+	context->m_maskLayerManager->removeResource((Surface*)maskLayer);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgFillMaskLayer(VGMaskLayer maskLayer, VGint x, VGint y, VGint width, VGint height, VGfloat value)
+#else
+void RI_APIENTRY vgFillMaskLayer(VGMaskLayer maskLayer, VGint x, VGint y, VGint width, VGint height, VGfloat value)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidMaskLayer(maskLayer), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid handle
+    RI_IF_ERROR(value < 0.0f || value > 1.0f, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Surface* layer = (Surface*)maskLayer;
+    RI_IF_ERROR(width <= 0 || height <= 0 || x < 0 || y < 0 || x > layer->getWidth()-width || y > layer->getHeight()-height, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    layer->clear(Color(1,1,1,value,Color::sRGBA), x, y, width, height);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgCopyMask(VGMaskLayer maskLayer, VGint dx, VGint dy, VGint sx, VGint sy, VGint width, VGint height)
+#else
+void RI_APIENTRY vgCopyMask(VGMaskLayer maskLayer, VGint dx, VGint dy, VGint sx, VGint sy, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidMaskLayer(maskLayer), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid handle
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable || !drawable->getMaskBuffer())
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment or context has no mask buffer
+    }
+    Surface* layer = (Surface*)maskLayer;
+    RI_IF_ERROR(width <= 0 || height <= 0 || drawable->getNumSamples() != layer->getNumSamples(), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    try
+    {   //copy drawing surface mask to mask layer
+        layer->blit(drawable->getMaskBuffer(), sx, sy, dx, dy, width, height);	//throws bad_alloc
+    }
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+    RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgClear(VGint x, VGint y, VGint width, VGint height)
+#else
+void RI_APIENTRY vgClear(VGint x, VGint y, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable)
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment
+    }
+
+	try
+	{
+		if(context->m_scissoring)
+			drawable->getColorBuffer()->clear(context->m_clearColor, x, y, width, height, context->m_scissor);	//throws bad_alloc
+		else
+			drawable->getColorBuffer()->clear(context->m_clearColor, x, y, width, height);
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGPath RI_APIENTRY do_vgCreatePath(VGint pathFormat, VGPathDatatype datatype, VGfloat scale, VGfloat bias, VGint segmentCapacityHint, VGint coordCapacityHint, VGbitfield capabilities)
+#else
+VGPath RI_APIENTRY vgCreatePath(VGint pathFormat, VGPathDatatype datatype, VGfloat scale, VGfloat bias, VGint segmentCapacityHint, VGint coordCapacityHint, VGbitfield capabilities)
+#endif
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	RI_IF_ERROR(pathFormat != VG_PATH_FORMAT_STANDARD, VG_UNSUPPORTED_PATH_FORMAT_ERROR, VG_INVALID_HANDLE);
+	RI_IF_ERROR(datatype < VG_PATH_DATATYPE_S_8 || datatype > VG_PATH_DATATYPE_F, VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+	RIfloat s = inputFloat(scale);
+	RIfloat b = inputFloat(bias);
+	RI_IF_ERROR(s == 0.0f, VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+	capabilities &= VG_PATH_CAPABILITY_ALL;	//undefined bits are ignored
+
+	Path* path = NULL;
+	try
+	{
+		path = RI_NEW(Path, (pathFormat, datatype, s, b, segmentCapacityHint, coordCapacityHint, capabilities));	//throws bad_alloc
+		RI_ASSERT(path);
+		context->m_pathManager->addResource(path, context);	//throws bad_alloc
+		RI_RETURN((VGPath)path);
+	}
+	catch(std::bad_alloc)
+	{
+		RI_DELETE(path);
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+		RI_RETURN(VG_INVALID_HANDLE);
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgClearPath(VGPath path, VGbitfield capabilities)
+#else
+void RI_APIENTRY vgClearPath(VGPath path, VGbitfield capabilities)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	capabilities &= VG_PATH_CAPABILITY_ALL;	//undefined bits are ignored
+	((Path*)path)->clear(capabilities);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDestroyPath(VGPath path)
+#else
+void RI_APIENTRY vgDestroyPath(VGPath path)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+
+	context->m_pathManager->removeResource((Path*)path);
+
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgRemovePathCapabilities(VGPath path, VGbitfield capabilities)
+#else
+void RI_APIENTRY vgRemovePathCapabilities(VGPath path, VGbitfield capabilities)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	capabilities &= VG_PATH_CAPABILITY_ALL;	//undefined bits are ignored
+
+	VGbitfield caps = ((Path*)path)->getCapabilities();
+	caps &= ~capabilities;
+	((Path*)path)->setCapabilities(caps);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGbitfield RI_APIENTRY do_vgGetPathCapabilities(VGPath path)
+#else
+VGbitfield RI_APIENTRY vgGetPathCapabilities(VGPath path)
+#endif
+{
+	RI_GET_CONTEXT(0);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, 0);	//invalid path handle
+	VGbitfield ret = ((Path*)path)->getCapabilities();
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgAppendPathData(VGPath dstPath, VGint numSegments, const VGubyte * pathSegments, const void * pathData)
+#else
+void RI_APIENTRY vgAppendPathData(VGPath dstPath, VGint numSegments, const VGubyte * pathSegments, const void * pathData)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(dstPath), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	Path* p = (Path*)dstPath;
+	RI_IF_ERROR(!(p->getCapabilities() & VG_PATH_CAPABILITY_APPEND_TO), VG_PATH_CAPABILITY_ERROR, RI_NO_RETVAL);	//no append cap
+	RI_IF_ERROR(numSegments <= 0 || !pathSegments || !pathData, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//no segments or data
+	RI_IF_ERROR((p->getDatatype() == VG_PATH_DATATYPE_S_16 && !isAligned(pathData,2)) ||
+				((p->getDatatype() == VG_PATH_DATATYPE_S_32 || p->getDatatype() == VG_PATH_DATATYPE_F) && !isAligned(pathData,4)),
+				VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid alignment
+	for(int i=0;i<numSegments;i++)
+	{
+		VGPathSegment c = (VGPathSegment)(pathSegments[i] & 0x1e);
+		RI_IF_ERROR(c < VG_CLOSE_PATH || c > VG_LCWARC_TO, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid segment
+		RI_IF_ERROR(c & ~0x1f, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//reserved bits are nonzero
+	}
+
+	try
+	{
+		p->appendData((const RIuint8*)pathSegments, numSegments, (const RIuint8*)pathData);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgModifyPathCoords(VGPath dstPath, VGint startIndex, VGint numSegments, const void * pathData)
+#else
+void RI_APIENTRY vgModifyPathCoords(VGPath dstPath, VGint startIndex, VGint numSegments, const void * pathData)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(dstPath), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	Path* p = (Path*)dstPath;
+	RI_IF_ERROR(!(p->getCapabilities() & VG_PATH_CAPABILITY_MODIFY), VG_PATH_CAPABILITY_ERROR, RI_NO_RETVAL);	//no modify cap
+	RI_IF_ERROR(!pathData || startIndex < 0 || numSegments <= 0 || RI_INT_ADDSATURATE(startIndex, numSegments) > p->getNumSegments(), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//no segments
+	RI_IF_ERROR((p->getDatatype() == VG_PATH_DATATYPE_S_16 && !isAligned(pathData,2)) ||
+				((p->getDatatype() == VG_PATH_DATATYPE_S_32 || p->getDatatype() == VG_PATH_DATATYPE_F) && !isAligned(pathData,4)),
+				VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid alignment
+	p->modifyCoords(startIndex, numSegments, (const RIuint8*)pathData);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgAppendPath(VGPath dstPath, VGPath srcPath)
+#else
+void RI_APIENTRY vgAppendPath(VGPath dstPath, VGPath srcPath)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(dstPath) || !context->isValidPath(srcPath), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	RI_IF_ERROR(!(((Path*)dstPath)->getCapabilities() & VG_PATH_CAPABILITY_APPEND_TO) ||
+				!(((Path*)srcPath)->getCapabilities() & VG_PATH_CAPABILITY_APPEND_FROM), VG_PATH_CAPABILITY_ERROR, RI_NO_RETVAL);	//invalid caps
+
+	try
+	{
+		((Path*)dstPath)->append((Path*)srcPath);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgTransformPath(VGPath dstPath, VGPath srcPath)
+#else
+void RI_APIENTRY vgTransformPath(VGPath dstPath, VGPath srcPath)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(dstPath) || !context->isValidPath(srcPath), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	RI_IF_ERROR(!(((Path*)dstPath)->getCapabilities() & VG_PATH_CAPABILITY_TRANSFORM_TO) ||
+				!(((Path*)srcPath)->getCapabilities() & VG_PATH_CAPABILITY_TRANSFORM_FROM), VG_PATH_CAPABILITY_ERROR, RI_NO_RETVAL);	//invalid caps
+	try
+	{
+		((Path*)dstPath)->transform((Path*)srcPath, context->m_pathUserToSurface);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static bool drawPath(VGContext* context, VGPath path, const Matrix3x3& userToSurfaceMatrix, VGbitfield paintModes)
+{
+	//set up rendering surface and mask buffer
+    Drawable* drawable = context->getCurrentDrawable();
+    RDebug::Printf(" ***************** In drawPath,Drawable addr is %x  $$$$$$$$$$$$$ ",drawable);
+    RDebug::Printf(" $$$$$$$$$$$$$ In drawPath,VGContext addr is %x  $$$$$$$$$$$$$ ",context);
+    RDebug::Printf(" $$$$$$$$$$$$$ In drawPath,Widthis %d  $$$$$$$$$$$$$ ",drawable->getWidth());
+    RDebug::Printf(" $$$$$$$$$$$$$ In drawPath,Height is %d  $$$$$$$$$$$$$ ",drawable->getHeight());
+       
+    if(!drawable)
+        return false;   //no EGL surface is current at the moment
+
+	Rasterizer rasterizer;
+	if(context->m_scissoring)
+		rasterizer.setScissor(context->m_scissor);	//throws bad_alloc
+	int numSamples = rasterizer.setupSamplingPattern(context->m_renderingQuality, drawable->getNumSamples());
+
+	PixelPipe pixelPipe;
+	pixelPipe.setDrawable(drawable);
+	pixelPipe.setMask(context->m_masking ? true : false);
+	pixelPipe.setBlendMode(context->m_blendMode);
+	pixelPipe.setTileFillColor(context->m_tileFillColor);
+	pixelPipe.setImageQuality(context->m_imageQuality);
+    pixelPipe.setColorTransform(context->m_colorTransform ? true : false, context->m_colorTransformValues);
+
+	Matrix3x3 userToSurface = userToSurfaceMatrix;
+	userToSurface[2].set(0,0,1);	//force affinity
+
+	if(paintModes & VG_FILL_PATH)
+	{
+		pixelPipe.setPaint((Paint*)context->m_fillPaint);
+
+		Matrix3x3 surfaceToPaintMatrix = userToSurface * context->m_fillPaintToUser;
+		if(surfaceToPaintMatrix.invert())
+		{
+			surfaceToPaintMatrix[2].set(0,0,1);		//force affinity
+			pixelPipe.setSurfaceToPaintMatrix(surfaceToPaintMatrix);
+
+            rasterizer.setup(0, 0, drawable->getWidth(), drawable->getHeight(), context->m_fillRule, &pixelPipe, NULL);
+			((Path*)path)->fill(userToSurface, rasterizer);	//throws bad_alloc
+			rasterizer.fill();	//throws bad_alloc
+		}
+	}
+
+	if(paintModes & VG_STROKE_PATH && context->m_strokeLineWidth > 0.0f)
+	{
+		pixelPipe.setPaint((Paint*)context->m_strokePaint);
+
+		Matrix3x3 surfaceToPaintMatrix = userToSurface * context->m_strokePaintToUser;
+		if(surfaceToPaintMatrix.invert())
+		{
+			surfaceToPaintMatrix[2].set(0,0,1);		//force affinity
+			pixelPipe.setSurfaceToPaintMatrix(surfaceToPaintMatrix);
+			RDebug::Printf(" $$$$$$$$$$$$$ In drawPath,Widthis %d  $$$$$$$$$$$$$ ",drawable->getWidth());
+			RDebug::Printf(" $$$$$$$$$$$$$ In drawPath,Height is %d  $$$$$$$$$$$$$ ",drawable->getHeight());
+            renderStroke(context, drawable->getWidth(), drawable->getHeight(), numSamples, (Path*)path, rasterizer, &pixelPipe, userToSurface);
+		}
+	}
+	return true;
+}
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDrawPath(VGPath path, VGbitfield paintModes)
+#else
+void RI_APIENTRY vgDrawPath(VGPath path, VGbitfield paintModes)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	RI_IF_ERROR(!paintModes || (paintModes & ~(VG_FILL_PATH | VG_STROKE_PATH)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid paint mode
+
+	try
+	{
+		if(!drawPath(context, path, context->m_pathUserToSurface, paintModes))
+		{
+			RI_RETURN(RI_NO_RETVAL);
+		}
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGfloat RI_APIENTRY do_vgPathLength(VGPath path, VGint startSegment, VGint numSegments)
+#else
+VGfloat RI_APIENTRY vgPathLength(VGPath path, VGint startSegment, VGint numSegments)
+#endif
+
+{
+	RI_GET_CONTEXT(-1.0f);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, -1.0f);	//invalid path handle
+	Path* p = (Path*)path;
+	RI_IF_ERROR(!(p->getCapabilities() & VG_PATH_CAPABILITY_PATH_LENGTH), VG_PATH_CAPABILITY_ERROR, -1.0f);	//invalid caps
+	RI_IF_ERROR(startSegment < 0 || numSegments <= 0 || RI_INT_ADDSATURATE(startSegment, numSegments) > p->getNumSegments(), VG_ILLEGAL_ARGUMENT_ERROR, -1.0f);
+	RIfloat pathLength = -1.0f;
+	try
+	{
+		pathLength = p->getPathLength(startSegment, numSegments);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(pathLength);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgPointAlongPath(VGPath path, VGint startSegment, VGint numSegments, VGfloat distance, VGfloat * x, VGfloat * y, VGfloat * tangentX, VGfloat * tangentY)
+#else
+void RI_APIENTRY vgPointAlongPath(VGPath path, VGint startSegment, VGint numSegments, VGfloat distance, VGfloat * x, VGfloat * y, VGfloat * tangentX, VGfloat * tangentY)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	Path* p = (Path*)path;
+	RI_IF_ERROR((x && y && !(p->getCapabilities() & VG_PATH_CAPABILITY_POINT_ALONG_PATH)) ||
+				(tangentX && tangentY && !(p->getCapabilities() & VG_PATH_CAPABILITY_TANGENT_ALONG_PATH)), VG_PATH_CAPABILITY_ERROR, RI_NO_RETVAL);	//invalid caps
+	RI_IF_ERROR(startSegment < 0 || numSegments <= 0 || RI_INT_ADDSATURATE(startSegment, numSegments) > p->getNumSegments(), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!isAligned(x,4) || !isAligned(y,4) || !isAligned(tangentX,4) || !isAligned(tangentY,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	try
+	{
+		Vector2 point, tangent;
+		p->getPointAlong(startSegment, numSegments, distance, point, tangent);	//throws bad_alloc
+		if(x && y)
+		{
+			*x = point.x;
+			*y = point.y;
+		}
+		if(tangentX && tangentY)
+		{
+			tangent.normalize();
+			*tangentX = tangent.x;
+			*tangentY = tangent.y;
+		}
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgPathBounds(VGPath path, VGfloat * minx, VGfloat * miny, VGfloat * width, VGfloat * height)
+#else
+void RI_APIENTRY vgPathBounds(VGPath path, VGfloat * minx, VGfloat * miny, VGfloat * width, VGfloat * height)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	RI_IF_ERROR(!(((Path*)path)->getCapabilities() & VG_PATH_CAPABILITY_PATH_BOUNDS), VG_PATH_CAPABILITY_ERROR, RI_NO_RETVAL);	//invalid caps
+	RI_IF_ERROR(!minx || !miny || !width || !height, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!isAligned(minx,4) || !isAligned(miny,4) || !isAligned(width,4) || !isAligned(height,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	try
+	{
+		RIfloat pminx,pminy,pmaxx,pmaxy;
+		((Path*)path)->getPathBounds(pminx, pminy, pmaxx, pmaxy);	//throws bad_alloc
+		*minx = pminx;
+		*miny = pminy;
+		*width = pmaxx - pminx;
+		*height = pmaxy - pminy;
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgPathTransformedBounds(VGPath path, VGfloat * minx, VGfloat * miny, VGfloat * width, VGfloat * height)
+#else
+void RI_APIENTRY vgPathTransformedBounds(VGPath path, VGfloat * minx, VGfloat * miny, VGfloat * width, VGfloat * height)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+	RI_IF_ERROR(!(((Path*)path)->getCapabilities() & VG_PATH_CAPABILITY_PATH_TRANSFORMED_BOUNDS), VG_PATH_CAPABILITY_ERROR, RI_NO_RETVAL);	//invalid caps
+	RI_IF_ERROR(!minx || !miny || !width || !height, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!isAligned(minx,4) || !isAligned(miny,4) || !isAligned(width,4) || !isAligned(height,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	try
+	{
+		RIfloat pminx, pminy, pmaxx, pmaxy;
+		((Path*)path)->getPathTransformedBounds(context->m_pathUserToSurface, pminx, pminy, pmaxx, pmaxy);	//throws bad_alloc
+		*minx = pminx;
+		*miny = pminy;
+		*width = pmaxx - pminx;
+		*height = pmaxy - pminy;
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGboolean RI_APIENTRY do_vgInterpolatePath(VGPath dstPath, VGPath startPath, VGPath endPath, VGfloat amount)
+#else
+VGboolean RI_APIENTRY vgInterpolatePath(VGPath dstPath, VGPath startPath, VGPath endPath, VGfloat amount)
+#endif
+
+{
+	RI_GET_CONTEXT(VG_FALSE);
+	RI_IF_ERROR(!context->isValidPath(dstPath) || !context->isValidPath(startPath) || !context->isValidPath(endPath), VG_BAD_HANDLE_ERROR, VG_FALSE);	//invalid path handle
+	RI_IF_ERROR(!(((Path*)dstPath)->getCapabilities() & VG_PATH_CAPABILITY_INTERPOLATE_TO) ||
+				!(((Path*)startPath)->getCapabilities() & VG_PATH_CAPABILITY_INTERPOLATE_FROM) ||
+				!(((Path*)endPath)->getCapabilities() & VG_PATH_CAPABILITY_INTERPOLATE_FROM), VG_PATH_CAPABILITY_ERROR, VG_FALSE);	//invalid caps
+	VGboolean ret = VG_FALSE;
+	try
+	{
+		if(((Path*)dstPath)->interpolate((const Path*)startPath, (const Path*)endPath, inputFloat(amount)))	//throws bad_alloc
+			ret = VG_TRUE;
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGPaint RI_APIENTRY do_vgCreatePaint(void)
+#else
+VGPaint RI_APIENTRY vgCreatePaint(void)
+#endif
+
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	Paint* paint = NULL;
+	try
+	{
+		paint = RI_NEW(Paint, ());	//throws bad_alloc
+		RI_ASSERT(paint);
+		context->m_paintManager->addResource(paint, context);	//throws bad_alloc
+		RI_RETURN((VGPaint)paint);
+	}
+	catch(std::bad_alloc)
+	{
+		RI_DELETE(paint);
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+		RI_RETURN(VG_INVALID_HANDLE);
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDestroyPaint(VGPaint paint)
+#else
+void RI_APIENTRY vgDestroyPaint(VGPaint paint)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPaint(paint), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid paint handle
+
+	context->m_paintManager->removeResource((Paint*)paint);
+
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetPaint(VGPaint paint, VGbitfield paintModes)
+#else
+void RI_APIENTRY vgSetPaint(VGPaint paint, VGbitfield paintModes)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(paint && !context->isValidPaint(paint), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid paint handle
+	RI_IF_ERROR(!paintModes || paintModes & ~(VG_FILL_PATH | VG_STROKE_PATH), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid paint mode
+
+	context->releasePaint(paintModes);
+
+	if(paintModes & VG_FILL_PATH)
+	{
+		if(paint)
+			((Paint*)paint)->addReference();
+		context->m_fillPaint = paint;
+	}
+	if(paintModes & VG_STROKE_PATH)
+	{
+		if(paint)
+			((Paint*)paint)->addReference();
+		context->m_strokePaint = paint;
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetColor(VGPaint paint, VGuint rgba)
+#else
+void RI_APIENTRY vgSetColor(VGPaint paint, VGuint rgba)
+#endif
+
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPaint(paint), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid paint handle
+	Paint* p = (Paint*)paint;
+	p->m_inputPaintColor.unpack(rgba, Color::formatToDescriptor(VG_sRGBA_8888));
+	p->m_paintColor = inputColor(p->m_inputPaintColor);
+	p->m_paintColor.clamp();
+	p->m_paintColor.premultiply();
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGuint RI_APIENTRY do_vgGetColor(VGPaint paint)
+#else
+VGuint RI_APIENTRY vgGetColor(VGPaint paint)
+#endif
+
+{
+	RI_GET_CONTEXT(0);
+	RI_IF_ERROR(!context->isValidPaint(paint), VG_BAD_HANDLE_ERROR, 0);	//invalid paint handle
+	unsigned int ret = ((Paint*)paint)->m_inputPaintColor.pack(Color::formatToDescriptor(VG_sRGBA_8888));
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGPaint RI_APIENTRY do_vgGetPaint(VGPaintMode paintMode)
+#else
+VGPaint RI_APIENTRY vgGetPaint(VGPaintMode paintMode)
+#endif
+
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	RI_IF_ERROR(paintMode != VG_FILL_PATH && paintMode != VG_STROKE_PATH, VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);	//invalid paint mode
+
+	if(paintMode == VG_FILL_PATH)
+	{
+		RI_RETURN(context->m_fillPaint);
+	}
+	RI_RETURN(context->m_strokePaint);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgPaintPattern(VGPaint paint, VGImage image)
+#else
+void RI_APIENTRY vgPaintPattern(VGPaint paint, VGImage image)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidPaint(paint) || (image != VG_INVALID_HANDLE && !context->isValidImage(image)), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid handle
+	Image* img = (Image*)image;
+	Paint* pnt = (Paint*)paint;
+	RI_IF_ERROR(image != VG_INVALID_HANDLE && eglvgIsInUse(img), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	Image* pattern = pnt->m_pattern;
+	if(pattern)
+	{
+		pattern->removeInUse();
+		if(!pattern->removeReference())
+			RI_DELETE(pattern);
+	}
+	pnt->m_pattern = img;
+	if(img)
+	{
+		img->addReference();
+		img->addInUse();
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGImage RI_APIENTRY do_vgCreateImage(VGImageFormat format, VGint width, VGint height, VGbitfield allowedQuality)
+#else
+VGImage RI_APIENTRY vgCreateImage(VGImageFormat format, VGint width, VGint height, VGbitfield allowedQuality)
+#endif
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	RI_IF_ERROR(!isValidImageFormat(format), VG_UNSUPPORTED_IMAGE_FORMAT_ERROR, VG_INVALID_HANDLE);
+	RI_IF_ERROR(width <= 0 || height <= 0 || !allowedQuality ||
+				(allowedQuality & ~(VG_IMAGE_QUALITY_NONANTIALIASED | VG_IMAGE_QUALITY_FASTER | VG_IMAGE_QUALITY_BETTER)), VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+	RI_IF_ERROR(width > RI_MAX_IMAGE_WIDTH || height > RI_MAX_IMAGE_HEIGHT || width*height > RI_MAX_IMAGE_PIXELS ||
+				((width*Color::formatToDescriptor(format).bitsPerPixel+7)/8)*height > RI_MAX_IMAGE_BYTES, VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+
+	Image* image = NULL;
+	try
+	{
+		image = RI_NEW(Image, (Color::formatToDescriptor(format), width, height, allowedQuality));	//throws bad_alloc
+		RI_ASSERT(image);
+		context->m_imageManager->addResource(image, context);	//throws bad_alloc
+		RI_RETURN((VGImage)image);
+	}
+	catch(std::bad_alloc)
+	{
+		RI_DELETE(image);
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+		RI_RETURN(VG_INVALID_HANDLE);
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDestroyImage(VGImage image)
+#else
+void RI_APIENTRY vgDestroyImage(VGImage image)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(image), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid image handle
+
+	context->m_imageManager->removeResource((Image*)image);
+
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgClearImage(VGImage image, VGint x, VGint y, VGint width, VGint height)
+#else
+void RI_APIENTRY vgClearImage(VGImage image, VGint x, VGint y, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(image), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* img = (Image*)image;
+	RI_IF_ERROR(eglvgIsInUse(img), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	img->clear(context->m_clearColor, x, y, width, height);
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgImageSubData(VGImage image, const void * data, VGint dataStride, VGImageFormat dataFormat, VGint x, VGint y, VGint width, VGint height)
+#else
+void RI_APIENTRY vgImageSubData(VGImage image, const void * data, VGint dataStride, VGImageFormat dataFormat, VGint x, VGint y, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(image), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* img = (Image*)image;
+	RI_IF_ERROR(eglvgIsInUse(img), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!isValidImageFormat(dataFormat), VG_UNSUPPORTED_IMAGE_FORMAT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!data || !isAligned(data, dataFormat) || width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	{
+		Image input(Color::formatToDescriptor(dataFormat), width, height, dataStride, const_cast<RIuint8*>((const RIuint8*)data));
+		input.addReference();
+		try
+		{
+			img->blit(input, 0, 0, x, y, width, height, false);	//throws bad_alloc
+		}
+		catch(std::bad_alloc)
+		{
+		}
+		input.removeReference();
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGetImageSubData(VGImage image, void * data, VGint dataStride, VGImageFormat dataFormat, VGint x, VGint y, VGint width, VGint height)
+#else
+void RI_APIENTRY vgGetImageSubData(VGImage image, void * data, VGint dataStride, VGImageFormat dataFormat, VGint x, VGint y, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(image), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* img = (Image*)image;
+	RI_IF_ERROR(eglvgIsInUse(img), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!isValidImageFormat(dataFormat), VG_UNSUPPORTED_IMAGE_FORMAT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!data || !isAligned(data, dataFormat) || width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	{
+		Image output(Color::formatToDescriptor(dataFormat), width, height, dataStride, (RIuint8*)data);
+		output.addReference();
+		try
+		{
+			output.blit(*img, x, y, 0, 0, width, height, false);	//throws bad_alloc
+		}
+		catch(std::bad_alloc)
+		{
+		}
+		output.removeReference();
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGImage RI_APIENTRY do_vgChildImage(VGImage parent, VGint x, VGint y, VGint width, VGint height)
+#else
+VGImage RI_APIENTRY vgChildImage(VGImage parent, VGint x, VGint y, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	RI_IF_ERROR(!context->isValidImage(parent), VG_BAD_HANDLE_ERROR, VG_INVALID_HANDLE);
+	Image* p = (Image*)parent;
+	RI_IF_ERROR(eglvgIsInUse((Image*)parent), VG_IMAGE_IN_USE_ERROR, VG_INVALID_HANDLE);
+	RI_IF_ERROR(x < 0 || x >= p->getWidth() || y < 0 || y >= p->getHeight() ||
+				width <= 0 || height <= 0 || RI_INT_ADDSATURATE(x, width) > p->getWidth() || RI_INT_ADDSATURATE(y, height) > p->getHeight(), VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+
+	Image* child = NULL;
+	try
+	{
+		child = RI_NEW(Image, (p, x, y, width, height));	//throws bad_alloc
+		RI_ASSERT(child);
+		context->m_imageManager->addResource(child, context);	//throws bad_alloc
+		RI_RETURN((VGImage)child);
+	}
+	catch(std::bad_alloc)
+	{
+		RI_DELETE(child);
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+		RI_RETURN(VG_INVALID_HANDLE);
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGImage RI_APIENTRY do_vgGetParent(VGImage image)
+#else
+VGImage RI_APIENTRY vgGetParent(VGImage image)
+#endif
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	RI_IF_ERROR(!context->isValidImage(image), VG_BAD_HANDLE_ERROR, VG_INVALID_HANDLE);
+	VGImage ret = image;	//if image has no ancestors, image is returned.
+
+    //The vgGetParent function returns the closest valid ancestor (i.e., one that has not been the target of a vgDestroyImage call)
+    // of the given image.
+	Image* im = ((Image*)image)->getParent();
+    for(;im;im = im->getParent())
+    {
+		if(context->isValidImage((VGImage)im))
+		{	//the parent is valid and alive
+			ret = (VGImage)im;
+            break;
+		}
+	}
+	RI_RETURN(ret);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgCopyImage(VGImage dst, VGint dx, VGint dy, VGImage src, VGint sx, VGint sy, VGint width, VGint height, VGboolean dither)
+#else
+void RI_APIENTRY vgCopyImage(VGImage dst, VGint dx, VGint dy, VGImage src, VGint sx, VGint sy, VGint width, VGint height, VGboolean dither)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst) || !context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(eglvgIsInUse((Image*)dst) || eglvgIsInUse((Image*)src), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	try
+	{
+		((Image*)dst)->blit(*(Image*)src, sx, sy, dx, dy, width, height, dither ? true : false);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+static bool drawImage(VGContext* context, VGImage image, const Matrix3x3& userToSurfaceMatrix)
+{
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable)
+        return false;   //no EGL surface is current at the moment
+
+	Image* img = (Image*)image;
+	//transform image corners into the surface space
+	Vector3 p0(0, 0, 1);
+	Vector3 p1(0, (RIfloat)img->getHeight(), 1);
+	Vector3 p2((RIfloat)img->getWidth(), (RIfloat)img->getHeight(), 1);
+	Vector3 p3((RIfloat)img->getWidth(), 0, 1);
+	p0 = userToSurfaceMatrix * p0;
+	p1 = userToSurfaceMatrix * p1;
+	p2 = userToSurfaceMatrix * p2;
+	p3 = userToSurfaceMatrix * p3;
+	if(p0.z <= 0.0f || p1.z <= 0.0f || p2.z <= 0.0f || p3.z <= 0.0f)
+		return false;
+
+	//projection
+	p0 *= 1.0f/p0.z;
+	p1 *= 1.0f/p1.z;
+	p2 *= 1.0f/p2.z;
+	p3 *= 1.0f/p3.z;
+
+	Rasterizer rasterizer;
+	if(context->m_scissoring)
+		rasterizer.setScissor(context->m_scissor);	//throws bad_alloc
+	rasterizer.setupSamplingPattern(context->m_renderingQuality, drawable->getNumSamples());
+
+	PixelPipe pixelPipe;
+	pixelPipe.setTileFillColor(context->m_tileFillColor);
+	pixelPipe.setPaint((Paint*)context->m_fillPaint);
+	pixelPipe.setImageQuality(context->m_imageQuality);
+	pixelPipe.setBlendMode(context->m_blendMode);
+	pixelPipe.setDrawable(drawable);
+	pixelPipe.setMask(context->m_masking ? true : false);
+    pixelPipe.setColorTransform(context->m_colorTransform ? true : false, context->m_colorTransformValues);
+
+	Matrix3x3 surfaceToImageMatrix = userToSurfaceMatrix;
+	Matrix3x3 surfaceToPaintMatrix = userToSurfaceMatrix * context->m_fillPaintToUser;
+	if(surfaceToImageMatrix.invert() && surfaceToPaintMatrix.invert())
+	{
+		VGImageMode imode = context->m_imageMode;
+		if(!surfaceToPaintMatrix.isAffine())
+			imode = VG_DRAW_IMAGE_NORMAL;	//if paint matrix is not affine, always use normal image mode
+		surfaceToPaintMatrix[2].set(0,0,1);	//force affine
+
+		pixelPipe.setImage(img, imode);
+		pixelPipe.setSurfaceToPaintMatrix(surfaceToPaintMatrix);
+		pixelPipe.setSurfaceToImageMatrix(surfaceToImageMatrix);
+
+		rasterizer.addEdge(Vector2(p0.x,p0.y), Vector2(p1.x,p1.y));	//throws bad_alloc
+		rasterizer.addEdge(Vector2(p1.x,p1.y), Vector2(p2.x,p2.y));	//throws bad_alloc
+		rasterizer.addEdge(Vector2(p2.x,p2.y), Vector2(p3.x,p3.y));	//throws bad_alloc
+		rasterizer.addEdge(Vector2(p3.x,p3.y), Vector2(p0.x,p0.y));	//throws bad_alloc
+        rasterizer.setup(0, 0, drawable->getWidth(), drawable->getHeight(), VG_EVEN_ODD, &pixelPipe, NULL);
+		rasterizer.fill();	//throws bad_alloc
+	}
+	return true;
+}
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDrawImage(VGImage image)
+#else
+void RI_APIENTRY vgDrawImage(VGImage image)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(image), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* img = (Image*)image;
+	RI_IF_ERROR(eglvgIsInUse(img), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+
+	try
+	{
+		if(!drawImage(context, image, context->m_imageUserToSurface))
+		{
+			RI_RETURN(RI_NO_RETVAL);
+		}
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetPixels(VGint dx, VGint dy, VGImage src, VGint sx, VGint sy, VGint width, VGint height)
+#else
+void RI_APIENTRY vgSetPixels(VGint dx, VGint dy, VGImage src, VGint sx, VGint sy, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(eglvgIsInUse((Image*)src), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable)
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment
+    }
+	try
+	{
+		if(context->m_scissoring)
+			drawable->getColorBuffer()->blit(*(Image*)src, sx, sy, dx, dy, width, height, context->m_scissor);	//throws bad_alloc
+		else
+			drawable->getColorBuffer()->blit(*(Image*)src, sx, sy, dx, dy, width, height);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgWritePixels(const void * data, VGint dataStride, VGImageFormat dataFormat, VGint dx, VGint dy, VGint width, VGint height)
+#else
+void RI_APIENTRY vgWritePixels(const void * data, VGint dataStride, VGImageFormat dataFormat, VGint dx, VGint dy, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!isValidImageFormat(dataFormat), VG_UNSUPPORTED_IMAGE_FORMAT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!data || !isAligned(data, dataFormat) || width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable)
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment
+    }
+	{
+		Image input(Color::formatToDescriptor(dataFormat), width, height, dataStride, const_cast<RIuint8*>((const RIuint8*)data));
+		input.addReference();
+		try
+		{
+			if(context->m_scissoring)
+				drawable->getColorBuffer()->blit(input, 0, 0, dx, dy, width, height, context->m_scissor);	//throws bad_alloc
+			else
+				drawable->getColorBuffer()->blit(input, 0, 0, dx, dy, width, height);	//throws bad_alloc
+		}
+		catch(std::bad_alloc)
+		{
+		}
+		input.removeReference();
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGetPixels(VGImage dst, VGint dx, VGint dy, VGint sx, VGint sy, VGint width, VGint height)
+#else
+void RI_APIENTRY vgGetPixels(VGImage dst, VGint dx, VGint dy, VGint sx, VGint sy, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(eglvgIsInUse((Image*)dst), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable)
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment
+    }
+	try
+	{
+		((Image*)dst)->blit(drawable->getColorBuffer(), sx, sy, dx, dy, width, height);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgReadPixels(void* data, VGint dataStride, VGImageFormat dataFormat, VGint sx, VGint sy, VGint width, VGint height)
+#else
+void RI_APIENTRY vgReadPixels(void* data, VGint dataStride, VGImageFormat dataFormat, VGint sx, VGint sy, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!isValidImageFormat(dataFormat), VG_UNSUPPORTED_IMAGE_FORMAT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!data || !isAligned(data, dataFormat) || width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable)
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment
+    }
+	{
+		Image output(Color::formatToDescriptor(dataFormat), width, height, dataStride, (RIuint8*)data);
+		output.addReference();
+		try
+		{
+			output.blit(drawable->getColorBuffer(), sx, sy, 0, 0, width, height);	//throws bad_alloc
+		}
+		catch(std::bad_alloc)
+		{
+		}
+		output.removeReference();
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgCopyPixels(VGint dx, VGint dy, VGint sx, VGint sy, VGint width, VGint height)
+#else
+void RI_APIENTRY vgCopyPixels(VGint dx, VGint dy, VGint sx, VGint sy, VGint width, VGint height)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(width <= 0 || height <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+    Drawable* drawable = context->getCurrentDrawable();
+    if(!drawable)
+    {
+        RI_RETURN(RI_NO_RETVAL);	//no EGL surface is current at the moment
+    }
+	try
+	{
+		if(context->m_scissoring)
+			drawable->getColorBuffer()->blit(drawable->getColorBuffer(), sx, sy, dx, dy, width, height, context->m_scissor);	//throws bad_alloc
+		else
+			drawable->getColorBuffer()->blit(drawable->getColorBuffer(), sx, sy, dx, dy, width, height);	//throws bad_alloc
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgColorMatrix(VGImage dst, VGImage src, const VGfloat * matrix)
+#else
+void RI_APIENTRY vgColorMatrix(VGImage dst, VGImage src, const VGfloat * matrix)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst) || !context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* d = (Image*)dst;
+	Image* s = (Image*)src;
+	RI_IF_ERROR(eglvgIsInUse(d) || eglvgIsInUse(s), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(d->overlaps(s), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!matrix || !isAligned(matrix,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	unsigned int channelMask = context->m_filterChannelMask & (VG_RED|VG_GREEN|VG_BLUE|VG_ALPHA);	//undefined bits are ignored
+
+	RIfloat m[20];
+	for(int i=0;i<20;i++)
+	{
+		m[i] = inputFloat(matrix[i]);
+	}
+	try
+	{
+		d->colorMatrix(*s, m, context->m_filterFormatLinear ? true : false, context->m_filterFormatPremultiplied ? true : false, channelMask);
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgConvolve(VGImage dst, VGImage src, VGint kernelWidth, VGint kernelHeight, VGint shiftX, VGint shiftY, const VGshort * kernel, VGfloat scale, VGfloat bias, VGTilingMode tilingMode)
+#else
+void RI_APIENTRY vgConvolve(VGImage dst, VGImage src, VGint kernelWidth, VGint kernelHeight, VGint shiftX, VGint shiftY, const VGshort * kernel, VGfloat scale, VGfloat bias, VGTilingMode tilingMode)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst) || !context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* d = (Image*)dst;
+	Image* s = (Image*)src;
+	RI_IF_ERROR(eglvgIsInUse(d) || eglvgIsInUse(s), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(d->overlaps(s), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!kernel || !isAligned(kernel,2) || kernelWidth <= 0 || kernelHeight <= 0 || kernelWidth > RI_MAX_KERNEL_SIZE || kernelHeight > RI_MAX_KERNEL_SIZE, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(tilingMode < VG_TILE_FILL || tilingMode > VG_TILE_REFLECT, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	unsigned int channelMask = context->m_filterChannelMask & (VG_RED|VG_GREEN|VG_BLUE|VG_ALPHA);	//undefined bits are ignored
+	try
+	{
+		d->convolve(*s, kernelWidth, kernelHeight, shiftX, shiftY, (const RIint16*)kernel, inputFloat(scale), inputFloat(bias), tilingMode, context->m_tileFillColor, context->m_filterFormatLinear ? true : false, context->m_filterFormatPremultiplied ? true : false, channelMask);
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSeparableConvolve(VGImage dst, VGImage src, VGint kernelWidth, VGint kernelHeight, VGint shiftX, VGint shiftY, const VGshort * kernelX, const VGshort * kernelY, VGfloat scale, VGfloat bias, VGTilingMode tilingMode)
+#else
+void RI_APIENTRY vgSeparableConvolve(VGImage dst, VGImage src, VGint kernelWidth, VGint kernelHeight, VGint shiftX, VGint shiftY, const VGshort * kernelX, const VGshort * kernelY, VGfloat scale, VGfloat bias, VGTilingMode tilingMode)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst) || !context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* d = (Image*)dst;
+	Image* s = (Image*)src;
+	RI_IF_ERROR(eglvgIsInUse(d) || eglvgIsInUse(s), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(d->overlaps(s), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!kernelX || !kernelY || !isAligned(kernelX,2) || !isAligned(kernelY,2) || kernelWidth <= 0 || kernelHeight <= 0 || kernelWidth > RI_MAX_SEPARABLE_KERNEL_SIZE || kernelHeight > RI_MAX_SEPARABLE_KERNEL_SIZE, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(tilingMode < VG_TILE_FILL || tilingMode > VG_TILE_REFLECT, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	unsigned int channelMask = context->m_filterChannelMask & (VG_RED|VG_GREEN|VG_BLUE|VG_ALPHA);	//undefined bits are ignored
+	try
+	{
+		d->separableConvolve(*s, kernelWidth, kernelHeight, shiftX, shiftY, (const RIint16*)kernelX, (const RIint16*)kernelY,
+										 inputFloat(scale), inputFloat(bias), tilingMode, context->m_tileFillColor, context->m_filterFormatLinear ? true : false,
+										 context->m_filterFormatPremultiplied ? true : false, channelMask);
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgGaussianBlur(VGImage dst, VGImage src, VGfloat stdDeviationX, VGfloat stdDeviationY, VGTilingMode tilingMode)
+#else
+void RI_APIENTRY vgGaussianBlur(VGImage dst, VGImage src, VGfloat stdDeviationX, VGfloat stdDeviationY, VGTilingMode tilingMode)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst) || !context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* d = (Image*)dst;
+	Image* s = (Image*)src;
+	RI_IF_ERROR(eglvgIsInUse(d) || eglvgIsInUse(s), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(d->overlaps(s), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RIfloat sx = inputFloat(stdDeviationX);
+	RIfloat sy = inputFloat(stdDeviationY);
+	RI_IF_ERROR(sx <= 0.0f || sy <= 0.0f || sx > (RIfloat)RI_MAX_GAUSSIAN_STD_DEVIATION || sy > (RIfloat)RI_MAX_GAUSSIAN_STD_DEVIATION, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(tilingMode < VG_TILE_FILL || tilingMode > VG_TILE_REFLECT, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	unsigned int channelMask = context->m_filterChannelMask & (VG_RED|VG_GREEN|VG_BLUE|VG_ALPHA);	//undefined bits are ignored
+	try
+	{
+		d->gaussianBlur(*s, sx, sy, tilingMode, context->m_tileFillColor, context->m_filterFormatLinear ? true : false,
+						context->m_filterFormatPremultiplied ? true : false, channelMask);
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgLookup(VGImage dst, VGImage src, const VGubyte * redLUT, const VGubyte * greenLUT, const VGubyte * blueLUT, const VGubyte * alphaLUT, VGboolean outputLinear, VGboolean outputPremultiplied)
+#else
+void RI_APIENTRY vgLookup(VGImage dst, VGImage src, const VGubyte * redLUT, const VGubyte * greenLUT, const VGubyte * blueLUT, const VGubyte * alphaLUT, VGboolean outputLinear, VGboolean outputPremultiplied)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst) || !context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* d = (Image*)dst;
+	Image* s = (Image*)src;
+	RI_IF_ERROR(eglvgIsInUse(d) || eglvgIsInUse(s), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(d->overlaps(s), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!redLUT || !greenLUT || !blueLUT || !alphaLUT, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	unsigned int channelMask = context->m_filterChannelMask & (VG_RED|VG_GREEN|VG_BLUE|VG_ALPHA);	//undefined bits are ignored
+	try
+	{
+		d->lookup(*s, (const RIuint8*)redLUT, (const RIuint8*)greenLUT, (const RIuint8*)blueLUT, (const RIuint8*)alphaLUT,
+				  outputLinear ? true : false, outputPremultiplied ? true : false, context->m_filterFormatLinear ? true : false,
+				  context->m_filterFormatPremultiplied ? true : false, channelMask);
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgLookupSingle(VGImage dst, VGImage src, const VGuint * lookupTable, VGImageChannel sourceChannel, VGboolean outputLinear, VGboolean outputPremultiplied)
+#else
+void RI_APIENTRY vgLookupSingle(VGImage dst, VGImage src, const VGuint * lookupTable, VGImageChannel sourceChannel, VGboolean outputLinear, VGboolean outputPremultiplied)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidImage(dst) || !context->isValidImage(src), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);
+	Image* d = (Image*)dst;
+	Image* s = (Image*)src;
+	RI_IF_ERROR(eglvgIsInUse(d) || eglvgIsInUse(s), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(d->overlaps(s), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(!lookupTable || !isAligned(lookupTable,4), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	const Color::Descriptor& desc = s->getDescriptor();
+	RI_ASSERT(Color::isValidDescriptor(desc));
+	//give an error if src is in rgb format and the source channel is not valid
+	RI_IF_ERROR((!desc.isLuminance() && !desc.isAlphaOnly()) && (sourceChannel != VG_RED && sourceChannel != VG_GREEN && sourceChannel != VG_BLUE && sourceChannel != VG_ALPHA), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	unsigned int channelMask = context->m_filterChannelMask & (VG_RED|VG_GREEN|VG_BLUE|VG_ALPHA);	//undefined bits are ignored
+	try
+	{
+		d->lookupSingle(*s, (const RIuint32*)lookupTable, sourceChannel, outputLinear ? true : false, outputPremultiplied ? true : false,
+						context->m_filterFormatLinear ? true : false, context->m_filterFormatPremultiplied ? true : false, channelMask);
+	}
+	catch(std::bad_alloc)
+	{
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGHardwareQueryResult RI_APIENTRY do_vgHardwareQuery(VGHardwareQueryType key, VGint setting)
+#else
+VGHardwareQueryResult RI_APIENTRY vgHardwareQuery(VGHardwareQueryType key, VGint setting)
+#endif
+{
+	RI_GET_CONTEXT(VG_HARDWARE_UNACCELERATED);
+	RI_IF_ERROR(key != VG_IMAGE_FORMAT_QUERY && key != VG_PATH_DATATYPE_QUERY, VG_ILLEGAL_ARGUMENT_ERROR, VG_HARDWARE_UNACCELERATED);
+	RI_IF_ERROR(key == VG_IMAGE_FORMAT_QUERY && !isValidImageFormat(setting), VG_ILLEGAL_ARGUMENT_ERROR, VG_HARDWARE_UNACCELERATED);
+	RI_IF_ERROR(key == VG_PATH_DATATYPE_QUERY && (setting < VG_PATH_DATATYPE_S_8 || setting > VG_PATH_DATATYPE_F), VG_ILLEGAL_ARGUMENT_ERROR, VG_HARDWARE_UNACCELERATED);
+	RI_RETURN(VG_HARDWARE_UNACCELERATED);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+RI_APIENTRY const VGubyte * do_vgGetString(VGStringID name)
+#else
+RI_APIENTRY const VGubyte * vgGetString(VGStringID name)
+#endif
+{
+	static const VGubyte vendor[] = "Khronos Group";
+	static const VGubyte renderer[] = {"OpenVG 1.1 Reference Implementation May 13 2008"};
+	static const VGubyte version[] = "1.1";
+	static const VGubyte extensions[] = "";
+	const VGubyte* r = NULL;
+	RI_GET_CONTEXT(NULL);
+	switch(name)
+	{
+	case VG_VENDOR:
+		r = vendor;
+		break;
+	case VG_RENDERER:
+		r = renderer;
+		break;
+	case VG_VERSION:
+		r = version;
+		break;
+	case VG_EXTENSIONS:
+		r = extensions;
+		break;
+	default:
+		break;
+	}
+	RI_RETURN(r);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+VGFont RI_APIENTRY do_vgCreateFont(VGint glyphCapacityHint)
+#else
+VGFont RI_APIENTRY vgCreateFont(VGint glyphCapacityHint)
+#endif
+{
+	RI_GET_CONTEXT(VG_INVALID_HANDLE);
+	RI_IF_ERROR(glyphCapacityHint < 0, VG_ILLEGAL_ARGUMENT_ERROR, VG_INVALID_HANDLE);
+
+	Font* font = NULL;
+	try
+	{
+		font = RI_NEW(Font, (glyphCapacityHint));	//throws bad_alloc
+		RI_ASSERT(font);
+		context->m_fontManager->addResource(font, context);	//throws bad_alloc
+		RI_RETURN((VGFont)font);
+	}
+	catch(std::bad_alloc)
+	{
+		RI_DELETE(font);
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+		RI_RETURN(VG_INVALID_HANDLE);
+	}
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDestroyFont(VGFont font)
+#else
+void RI_APIENTRY vgDestroyFont(VGFont font)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidFont(font), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid font handle
+
+	context->m_fontManager->removeResource((Font*)font);
+
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetGlyphToPath(VGFont font, VGuint glyphIndex, VGPath path, VGboolean isHinted, const VGfloat glyphOrigin[2], const VGfloat escapement[2])
+#else
+void RI_APIENTRY vgSetGlyphToPath(VGFont font, VGuint glyphIndex, VGPath path, VGboolean isHinted, const VGfloat glyphOrigin[2], const VGfloat escapement[2])
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidFont(font), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid font handle
+	RI_IF_ERROR(path != VG_INVALID_HANDLE && !context->isValidPath(path), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid path handle
+    RI_IF_ERROR(!glyphOrigin || !escapement || !isAligned(glyphOrigin,sizeof(VGfloat)) || !isAligned(escapement,sizeof(VGfloat)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	Font* f = (Font*)font;
+
+	try
+	{
+        f->setGlyphToPath(glyphIndex, path, isHinted ? true : false, Vector2(inputFloat(glyphOrigin[0]), inputFloat(glyphOrigin[1])), Vector2(inputFloat(escapement[0]), inputFloat(escapement[1])));
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgSetGlyphToImage(VGFont font, VGuint glyphIndex, VGImage image, const VGfloat glyphOrigin[2], const VGfloat escapement[2])
+#else
+void RI_APIENTRY vgSetGlyphToImage(VGFont font, VGuint glyphIndex, VGImage image, const VGfloat glyphOrigin[2], const VGfloat escapement[2])
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidFont(font), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid font handle
+    if(image != VG_INVALID_HANDLE)
+    {
+        RI_IF_ERROR(!context->isValidImage(image), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid image handle
+        RI_IF_ERROR(eglvgIsInUse((Image*)image), VG_IMAGE_IN_USE_ERROR, RI_NO_RETVAL); //image in use
+    }
+    RI_IF_ERROR(!glyphOrigin || !escapement || !isAligned(glyphOrigin,sizeof(VGfloat)) || !isAligned(escapement,sizeof(VGfloat)), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	Font* f = (Font*)font;
+
+	try
+	{
+        f->setGlyphToImage(glyphIndex, image, Vector2(inputFloat(glyphOrigin[0]), inputFloat(glyphOrigin[1])), Vector2(inputFloat(escapement[0]), inputFloat(escapement[1])));
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgClearGlyph(VGFont font, VGuint glyphIndex)
+#else
+void RI_APIENTRY vgClearGlyph(VGFont font, VGuint glyphIndex)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidFont(font), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid font handle
+	Font* f = (Font*)font;
+    Font::Glyph* g = f->findGlyph(glyphIndex);
+    RI_IF_ERROR(!g, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);   //glyphIndex not defined
+
+	f->clearGlyph(g);
+
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDrawGlyph(VGFont font, VGuint glyphIndex, VGbitfield paintModes, VGboolean allowAutoHinting)
+#else
+void RI_APIENTRY vgDrawGlyph(VGFont font, VGuint glyphIndex, VGbitfield paintModes, VGboolean allowAutoHinting)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidFont(font), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid font handle
+	RI_IF_ERROR(paintModes & ~(VG_FILL_PATH | VG_STROKE_PATH), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid paint mode
+	Font* f = (Font*)font;
+    Font::Glyph* g = f->findGlyph(glyphIndex);
+    RI_IF_ERROR(!g, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);   //glyphIndex not defined
+    RI_UNREF(allowAutoHinting); //RI doesn't implement autohinting
+
+	try
+	{
+        if(paintModes)
+        {
+            Matrix3x3 userToSurfaceMatrix = context->m_glyphUserToSurface;
+            Vector2 t = context->m_glyphOrigin - g->m_origin;
+            Matrix3x3 n(1, 0, t.x,
+                        0, 1, t.y,
+                        0, 0, 1 );
+            userToSurfaceMatrix *= n;
+            userToSurfaceMatrix[2].set(0,0,1);		//force affinity
+
+            bool ret = true;
+            if(g->m_image != VG_INVALID_HANDLE)
+                ret = drawImage(context, g->m_image, userToSurfaceMatrix);
+            else if(g->m_path != VG_INVALID_HANDLE)
+                ret = drawPath(context, g->m_path, userToSurfaceMatrix, paintModes);
+            if(!ret)
+            {
+                RI_RETURN(RI_NO_RETVAL);
+            }
+        }
+
+        context->m_glyphOrigin += g->m_escapement;
+        context->m_inputGlyphOrigin = context->m_glyphOrigin;
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+
+	RI_RETURN(RI_NO_RETVAL);
+}
+
+/*-------------------------------------------------------------------*//*!
+* \brief	
+* \param	
+* \return	
+* \note		
+*//*-------------------------------------------------------------------*/
+
+#ifdef BUILD_WITH_PRIVATE_OPENVG
+void RI_APIENTRY do_vgDrawGlyphs(VGFont font, VGint glyphCount, const VGuint *glyphIndices, const VGfloat *adjustments_x, const VGfloat *adjustments_y, VGbitfield paintModes, VGboolean allowAutoHinting)
+#else
+void RI_APIENTRY vgDrawGlyphs(VGFont font, VGint glyphCount, const VGuint *glyphIndices, const VGfloat *adjustments_x, const VGfloat *adjustments_y, VGbitfield paintModes, VGboolean allowAutoHinting)
+#endif
+{
+	RI_GET_CONTEXT(RI_NO_RETVAL);
+	RI_IF_ERROR(!context->isValidFont(font), VG_BAD_HANDLE_ERROR, RI_NO_RETVAL);	//invalid font handle
+	RI_IF_ERROR(!glyphIndices || !isAligned(glyphIndices, sizeof(VGuint)) || glyphCount <= 0, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR((adjustments_x && !isAligned(adjustments_x, sizeof(VGfloat))) || (adjustments_y && !isAligned(adjustments_y, sizeof(VGfloat))), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);
+	RI_IF_ERROR(paintModes & ~(VG_FILL_PATH | VG_STROKE_PATH), VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);	//invalid paint mode
+	Font* f = (Font*)font;
+	for(int i=0;i<glyphCount;i++)
+	{
+        Font::Glyph* g = f->findGlyph(glyphIndices[i]);
+        RI_IF_ERROR(!g, VG_ILLEGAL_ARGUMENT_ERROR, RI_NO_RETVAL);   //glyphIndex not defined
+    }
+    RI_UNREF(allowAutoHinting); //RI doesn't implement autohinting
+
+	try
+	{
+		for(int i=0;i<glyphCount;i++)
+		{
+            Font::Glyph* g = f->findGlyph(glyphIndices[i]);
+
+            if(paintModes)
+            {
+                Matrix3x3 userToSurfaceMatrix = context->m_glyphUserToSurface;
+                Vector2 t = context->m_glyphOrigin - g->m_origin;
+                Matrix3x3 n(1, 0, t.x,
+                            0, 1, t.y,
+                            0, 0, 1 );
+                userToSurfaceMatrix *= n;
+                userToSurfaceMatrix[2].set(0,0,1);		//force affinity
+
+                bool ret = true;
+                if(g->m_image != VG_INVALID_HANDLE)
+                    ret = drawImage(context, g->m_image, userToSurfaceMatrix);
+                else if(g->m_path != VG_INVALID_HANDLE)
+                    ret = drawPath(context, g->m_path, userToSurfaceMatrix, paintModes);
+                if(!ret)
+                {
+                    RI_RETURN(RI_NO_RETVAL);
+                }
+            }
+
+            context->m_glyphOrigin += g->m_escapement;
+            if(adjustments_x)
+                context->m_glyphOrigin.x += inputFloat(adjustments_x[i]);
+            if(adjustments_y)
+                context->m_glyphOrigin.y += inputFloat(adjustments_y[i]);
+            context->m_inputGlyphOrigin = context->m_glyphOrigin;
+		}
+	}
+	catch(std::bad_alloc)
+	{
+		context->setError(VG_OUT_OF_MEMORY_ERROR);
+	}
+
+	RI_RETURN(RI_NO_RETVAL);
+}
+