kernel void CrossFade( float         ratio,
                       int           width,
                       int           height,
                       global uchar* pInput0,
                       int           inputStride0,
                       global uchar* pInput1,
                       int           inputStride1,
                       global uchar* pOutput,
                       int           outputStride )
{
	size_t x = get_global_id(0);
	size_t y = get_global_id(1);
	global uchar4* pI0 = (global uchar4*)(pInput0+y*inputStride0);
	global uchar4* pI1 = (global uchar4*)(pInput1+y*inputStride1);
	global uchar4* pO = (global uchar4*)(pOutput+y*outputStride);
	uchar4 mixed;
	
	mixed = convert_uchar4_sat_rte( mix( convert_float4(pI0[x]), convert_float4(pI1[x]), ratio ) );
	pO[x] = mixed;
}