/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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//  copy or use the software.
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//
//                           License Agreement
//                For Open Source Computer Vision Library
//
// Copyright (C) 2010-2012, Multicoreware, Inc., all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// @Authors
//    Zhang Chunpeng	chunpeng@multicorewareinc.com
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
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//   * Redistribution's of source code must retain the above copyright notice,
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//#pragma OPENCL EXTENSION cl_amd_printf : enable

uchar get_valid_uchar(uchar data)
{
	return (uchar)(data <= 255 ? data : data > 0 ? 255 : 0);
}
///////////////////////////////////////////////////////////////////////
//////////////////////////  CV_8UC1  //////////////////////////////////
///////////////////////////////////////////////////////////////////////
__kernel void pyrUp_C1_D0(__global uchar* src,__global uchar* dst,
				int srcRows,int dstRows,int srcCols,int dstCols,
				int srcOffset,int dstOffset,int srcStep,int dstStep)
{
	const int x = get_global_id(0);
	const int y = get_global_id(1);
	
	__local float s_srcPatch[10][10];
	__local float s_dstPatch[20][16];
	

	if( get_local_id(0) < 10 && get_local_id(1) < 10 )
	{
		int srcx = (int)(get_group_id(0) * get_local_size(0) / 2 + get_local_id(0)) - 1;
		int srcy = (int)(get_group_id(1) * get_local_size(1) / 2 + get_local_id(1)) - 1;
		
		srcx = abs(srcx);
		srcx = min(srcCols - 1,srcx);
		
		srcy = abs(srcy);
		srcy = min(srcRows -1 ,srcy);
		
		s_srcPatch[get_local_id(1)][get_local_id(0)] = (float)(src[srcx + srcy * srcStep]);
		
	}
	
	barrier(CLK_LOCAL_MEM_FENCE);
	
	float sum = 0;
	const int evenFlag = (int)((get_local_id(0) & 1) == 0);
	const int oddFlag = (int)((get_local_id(0) & 1) != 0);
	const bool  eveny = ((get_local_id(1) & 1) == 0);
	const int tidx = get_local_id(0);
	
	if(eveny)
	{
		sum = sum + (evenFlag * 0.0625f) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 2) >> 1)];
        sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 1) >> 1)];
        sum = sum + (evenFlag * 0.375f ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx    ) >> 1)];
        sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 1) >> 1)];
        sum = sum + (evenFlag * 0.0625f) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 2) >> 1)];	
  	}
	
	s_dstPatch[2 + get_local_id(1)][get_local_id(0)] = sum;
	
	if (get_local_id(1) < 2)
    {
		sum = 0;

        if (eveny)
        {
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[0][1 + ((tidx - 2) >> 1)];
            sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[0][1 + ((tidx - 1) >> 1)];
            sum = sum + (evenFlag * 0.375f ) * s_srcPatch[0][1 + ((tidx    ) >> 1)];
            sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[0][1 + ((tidx + 1) >> 1)];
            sum = sum + (evenFlag * 0.0625f) * s_srcPatch[0][1 + ((tidx + 2) >> 1)];
         }

         s_dstPatch[get_local_id(1)][get_local_id(0)] = sum;
     }
     
     if (get_local_id(1) > 13)
     {
		sum = 0;

		if (eveny)
		{
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[9][1 + ((tidx - 2) >> 1)];
			sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[9][1 + ((tidx - 1) >> 1)];
			sum = sum + (evenFlag * 0.375f ) * s_srcPatch[9][1 + ((tidx    ) >> 1)];
			sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[9][1 + ((tidx + 1) >> 1)];
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[9][1 + ((tidx + 2) >> 1)];
		}
		s_dstPatch[4 + get_local_id(1)][get_local_id(0)] = sum;
     }

	barrier(CLK_LOCAL_MEM_FENCE);
	
	sum = 0;

    const int tidy = get_local_id(1);

    sum = sum + 0.0625f * s_dstPatch[2 + tidy - 2][get_local_id(0)];
    sum = sum + 0.25f   * s_dstPatch[2 + tidy - 1][get_local_id(0)];
    sum = sum + 0.375f  * s_dstPatch[2 + tidy    ][get_local_id(0)];
    sum = sum + 0.25f   * s_dstPatch[2 + tidy + 1][get_local_id(0)];
    sum = sum + 0.0625f * s_dstPatch[2 + tidy + 2][get_local_id(0)];

    if ((x < dstCols) && (y < dstRows))
		dst[x + y * dstStep] = (float)(4.0f * sum);

}

///////////////////////////////////////////////////////////////////////
//////////////////////////  CV_16UC1  /////////////////////////////////
///////////////////////////////////////////////////////////////////////
__kernel void pyrUp_C1_D2(__global ushort* src,__global ushort* dst,
				int srcRows,int dstRows,int srcCols,int dstCols,
				int srcOffset,int dstOffset,int srcStep,int dstStep)
{
	const int x = get_global_id(0);
	const int y = get_global_id(1);
	
	__local float s_srcPatch[10][10];
	__local float s_dstPatch[20][16];
	
	srcStep = srcStep >> 1;
	dstStep = dstStep >> 1;
	srcOffset = srcOffset >> 1;
	dstOffset = dstOffset >> 1;
	

	if( get_local_id(0) < 10 && get_local_id(1) < 10 )
	{
		int srcx = (int)(get_group_id(0) * get_local_size(0) / 2 + get_local_id(0)) - 1;
		int srcy = (int)(get_group_id(1) * get_local_size(1) / 2 + get_local_id(1)) - 1;
		
		srcx = abs(srcx);
		srcx = min(srcCols - 1,srcx);
		
		srcy = abs(srcy);
		srcy = min(srcRows -1 ,srcy);
		
		s_srcPatch[get_local_id(1)][get_local_id(0)] = (float)(src[srcx + srcy * srcStep]);
		
	}
	
	barrier(CLK_LOCAL_MEM_FENCE);
	
	float sum = 0;
	
	const int evenFlag = (int)((get_local_id(0) & 1) == 0);
	const int oddFlag = (int)((get_local_id(0) & 1) != 0);
	const bool  eveny = ((get_local_id(1) & 1) == 0);
	const int tidx = get_local_id(0);
	
	if(eveny)
	{
		sum = sum + (evenFlag * 0.0625f) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 2) >> 1)];
        sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 1) >> 1)];
        sum = sum + (evenFlag * 0.375f ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx    ) >> 1)];
        sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 1) >> 1)];
        sum = sum + (evenFlag * 0.0625f) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 2) >> 1)];	
  	}
	
	s_dstPatch[2 + get_local_id(1)][get_local_id(0)] = sum;
	
	if (get_local_id(1) < 2)
    {
		sum = 0;

        if (eveny)
        {
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[0][1 + ((tidx - 2) >> 1)];
            sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[0][1 + ((tidx - 1) >> 1)];
            sum = sum + (evenFlag * 0.375f ) * s_srcPatch[0][1 + ((tidx    ) >> 1)];
            sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[0][1 + ((tidx + 1) >> 1)];
            sum = sum + (evenFlag * 0.0625f) * s_srcPatch[0][1 + ((tidx + 2) >> 1)];
         }

         s_dstPatch[get_local_id(1)][get_local_id(0)] = sum;
     }
     
     if (get_local_id(1) > 13)
     {
		sum = 0;

		if (eveny)
		{
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[9][1 + ((tidx - 2) >> 1)];
			sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[9][1 + ((tidx - 1) >> 1)];
			sum = sum + (evenFlag * 0.375f ) * s_srcPatch[9][1 + ((tidx    ) >> 1)];
			sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[9][1 + ((tidx + 1) >> 1)];
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[9][1 + ((tidx + 2) >> 1)];
		}
		s_dstPatch[4 + get_local_id(1)][get_local_id(0)] = sum;
     }

	barrier(CLK_LOCAL_MEM_FENCE);
	
	sum = 0;

    const int tidy = get_local_id(1);

    sum = sum + 0.0625f * s_dstPatch[2 + tidy - 2][get_local_id(0)];
    sum = sum + 0.25f   * s_dstPatch[2 + tidy - 1][get_local_id(0)];
    sum = sum + 0.375f  * s_dstPatch[2 + tidy    ][get_local_id(0)];
    sum = sum + 0.25f   * s_dstPatch[2 + tidy + 1][get_local_id(0)];
    sum = sum + 0.0625f * s_dstPatch[2 + tidy + 2][get_local_id(0)];

    if ((x < dstCols) && (y < dstRows))
		dst[x + y * dstStep] = (float)(4.0f * sum);

}

///////////////////////////////////////////////////////////////////////
//////////////////////////  CV_32FC1  /////////////////////////////////
///////////////////////////////////////////////////////////////////////
__kernel void pyrUp_C1_D5(__global float* src,__global float* dst,
				int srcRows,int dstRows,int srcCols,int dstCols,
				int srcOffset,int dstOffset,int srcStep,int dstStep)
{
	const int x = get_global_id(0);
	const int y = get_global_id(1);
	
	__local float s_srcPatch[10][10];
	__local float s_dstPatch[20][16];
	
	srcOffset = srcOffset >> 2;
	dstOffset = dstOffset >> 2;
	srcStep = srcStep >> 2;
	dstStep = dstStep >> 2;
	

	if( get_local_id(0) < 10 && get_local_id(1) < 10 )
	{
		int srcx = (int)(get_group_id(0) * get_local_size(0) / 2 + get_local_id(0)) - 1;
		int srcy = (int)(get_group_id(1) * get_local_size(1) / 2 + get_local_id(1)) - 1;
		
		srcx = abs(srcx);
		srcx = min(srcCols - 1,srcx);
		
		srcy = abs(srcy);
		srcy = min(srcRows -1 ,srcy);
		
		s_srcPatch[get_local_id(1)][get_local_id(0)] = (float)(src[srcx + srcy * srcStep]);
		
	}
	
	barrier(CLK_LOCAL_MEM_FENCE);
	
	float sum = 0;
	const int evenFlag = (int)((get_local_id(0) & 1) == 0);
	const int oddFlag = (int)((get_local_id(0) & 1) != 0);
	const bool  eveny = ((get_local_id(1) & 1) == 0);
	const int tidx = get_local_id(0);
	
	if(eveny)
	{
		sum = sum + (evenFlag * 0.0625f) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 2) >> 1)];
        sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 1) >> 1)];
        sum = sum + (evenFlag * 0.375f ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx    ) >> 1)];
        sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 1) >> 1)];
        sum = sum + (evenFlag * 0.0625f) * s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 2) >> 1)];	
  	}
	
	s_dstPatch[2 + get_local_id(1)][get_local_id(0)] = sum;
	
	if (get_local_id(1) < 2)
    {
		sum = 0;

        if (eveny)
        {
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[0][1 + ((tidx - 2) >> 1)];
            sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[0][1 + ((tidx - 1) >> 1)];
            sum = sum + (evenFlag * 0.375f ) * s_srcPatch[0][1 + ((tidx    ) >> 1)];
            sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[0][1 + ((tidx + 1) >> 1)];
            sum = sum + (evenFlag * 0.0625f) * s_srcPatch[0][1 + ((tidx + 2) >> 1)];
         }

         s_dstPatch[get_local_id(1)][get_local_id(0)] = sum;
     }
     
     if (get_local_id(1) > 13)
     {
		sum = 0;

		if (eveny)
		{
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[9][1 + ((tidx - 2) >> 1)];
			sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[9][1 + ((tidx - 1) >> 1)];
			sum = sum + (evenFlag * 0.375f ) * s_srcPatch[9][1 + ((tidx    ) >> 1)];
			sum = sum + ( oddFlag * 0.25f  ) * s_srcPatch[9][1 + ((tidx + 1) >> 1)];
			sum = sum + (evenFlag * 0.0625f) * s_srcPatch[9][1 + ((tidx + 2) >> 1)];
		}
		s_dstPatch[4 + get_local_id(1)][get_local_id(0)] = sum;
     }

	barrier(CLK_LOCAL_MEM_FENCE);
	
	sum = 0;

    const int tidy = get_local_id(1);

    sum = sum + 0.0625f * s_dstPatch[2 + tidy - 2][get_local_id(0)];
    sum = sum + 0.25f   * s_dstPatch[2 + tidy - 1][get_local_id(0)];
    sum = sum + 0.375f  * s_dstPatch[2 + tidy    ][get_local_id(0)];
    sum = sum + 0.25f   * s_dstPatch[2 + tidy + 1][get_local_id(0)];
    sum = sum + 0.0625f * s_dstPatch[2 + tidy + 2][get_local_id(0)];

    if ((x < dstCols) && (y < dstRows))
		dst[x + y * dstStep] = (float)(4.0f * sum);

}

///////////////////////////////////////////////////////////////////////
//////////////////////////  CV_8UC4  //////////////////////////////////
///////////////////////////////////////////////////////////////////////
float4 covert_uchar4_to_float4(uchar4 data)
{
	float4 f4Data = {0,0,0,0};
	
	f4Data.x = (float)data.x;
	f4Data.y = (float)data.y;
	f4Data.z = (float)data.z;
	f4Data.w = (float)data.w;
	
	return f4Data;
}


uchar4 convert_float4_to_uchar4(float4 data)
{
	uchar4 u4Data;
	
	u4Data.x = get_valid_uchar(data.x);
	u4Data.y = get_valid_uchar(data.y);
	u4Data.z = get_valid_uchar(data.z);
	u4Data.w = get_valid_uchar(data.w);
	
	return u4Data;
}

float4 int_x_float4(int leftOpr,float4 rightOpr)
{
	float4 result = {0,0,0,0};
	
	result.x = rightOpr.x * leftOpr;
	result.y = rightOpr.y * leftOpr;
	result.z = rightOpr.z * leftOpr;
	result.w = rightOpr.w * leftOpr;
	
	return result;
}

float4 float4_x_float4(float4 leftOpr,float4 rightOpr)
{
	float4 result;
	
	result.x = leftOpr.x * rightOpr.x;
	result.y = leftOpr.y * rightOpr.y;
	result.z = leftOpr.z * rightOpr.z;
	result.w = leftOpr.w * rightOpr.w;
	
	return result;
}

__kernel void pyrUp_C4_D0(__global uchar4* src,__global uchar4* dst,
				int srcRows,int dstRows,int srcCols,int dstCols,
				int srcOffset,int dstOffset,int srcStep,int dstStep)
{
	const int x = get_global_id(0);
	const int y = get_global_id(1);
	
	__local float4 s_srcPatch[10][10];
	__local float4 s_dstPatch[20][16];
	
	srcOffset >>= 2;
	dstOffset >>= 2;
	srcStep >>= 2;
	dstStep >>= 2;
	

	if( get_local_id(0) < 10 && get_local_id(1) < 10 )
	{
		int srcx = (int)(get_group_id(0) * get_local_size(0) / 2 + get_local_id(0)) - 1;
		int srcy = (int)(get_group_id(1) * get_local_size(1) / 2 + get_local_id(1)) - 1;
		
		srcx = abs(srcx);
		srcx = min(srcCols - 1,srcx);
		
		srcy = abs(srcy);
		srcy = min(srcRows -1 ,srcy);
		
		s_srcPatch[get_local_id(1)][get_local_id(0)] = covert_uchar4_to_float4(src[srcx + srcy * srcStep]);
	}
	
	barrier(CLK_LOCAL_MEM_FENCE);
	
	float4 sum = (float4)(0,0,0,0);
	
	const int evenFlag = (int)((get_local_id(0) & 1) == 0);
	const int oddFlag = (int)((get_local_id(0) & 1) != 0);
	const bool  eveny = ((get_local_id(1) & 1) == 0);
	const int tidx = get_local_id(0);
	
	float4 co1 = (float4)(0.375f, 0.375f, 0.375f, 0.375f);
	float4 co2 = (float4)(0.25f, 0.25f, 0.25f, 0.25f);
	float4 co3 = (float4)(0.0625f, 0.0625f, 0.0625f, 0.0625f);

	
	if(eveny)
	{
		sum = sum + float4_x_float4(int_x_float4( evenFlag, co3 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 2) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( oddFlag , co2 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 1) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( evenFlag, co1 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx    ) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( oddFlag , co2 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 1) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( evenFlag, co3 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 2) >> 1)]);	
                
  	}
	
	s_dstPatch[2 + get_local_id(1)][get_local_id(0)] = sum;
	
	if (get_local_id(1) < 2)
    {
		sum = 0;

        if (eveny)
        {
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[0][1 + ((tidx - 2) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4( oddFlag , co2  ) , s_srcPatch[0][1 + ((tidx - 1) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4(evenFlag , co1 ) , s_srcPatch[0][1 + ((tidx    ) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4( oddFlag , co2  ) , s_srcPatch[0][1 + ((tidx + 1) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[0][1 + ((tidx + 2) >> 1)]);
         }

         s_dstPatch[get_local_id(1)][get_local_id(0)] = sum;
     }
     
     if (get_local_id(1) > 13)
     {
		sum = 0;

		if (eveny)
		{
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[9][1 + ((tidx - 2) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4( oddFlag , co2) , s_srcPatch[9][1 + ((tidx - 1) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co1) , s_srcPatch[9][1 + ((tidx    ) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4( oddFlag , co2) , s_srcPatch[9][1 + ((tidx + 1) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[9][1 + ((tidx + 2) >> 1)]);
			
		}
		s_dstPatch[4 + get_local_id(1)][get_local_id(0)] = sum;
     }

	barrier(CLK_LOCAL_MEM_FENCE);
	
	sum = 0;

    const int tidy = get_local_id(1);

    sum = sum + float4_x_float4(co3 , s_dstPatch[2 + tidy - 2][get_local_id(0)]);
    sum = sum + float4_x_float4(co2 , s_dstPatch[2 + tidy - 1][get_local_id(0)]);
    sum = sum + float4_x_float4(co1 , s_dstPatch[2 + tidy    ][get_local_id(0)]);
    sum = sum + float4_x_float4(co2 , s_dstPatch[2 + tidy + 1][get_local_id(0)]);
    sum = sum + float4_x_float4(co3 , s_dstPatch[2 + tidy + 2][get_local_id(0)]);

    if ((x < dstCols) && (y < dstRows))
    {
		dst[x + y * dstStep] = convert_float4_to_uchar4(int_x_float4(4.0f,sum));
	}
} 
///////////////////////////////////////////////////////////////////////
//////////////////////////  CV_16UC4 //////////////////////////////////
///////////////////////////////////////////////////////////////////////
float4 covert_ushort4_to_float4(ushort4 data)
{
	float4 f4Data = {0,0,0,0};
	
	f4Data.x = (float)data.x;
	f4Data.y = (float)data.y;
	f4Data.z = (float)data.z;
	f4Data.w = (float)data.w;
	
	return f4Data;
}


ushort4 convert_float4_to_ushort4(float4 data)
{
	ushort4 u4Data;
	
	u4Data.x = (float)data.x;
	u4Data.y = (float)data.y;
	u4Data.z = (float)data.z;
	u4Data.w = (float)data.w;
	
	return u4Data;
}


__kernel void pyrUp_C4_D2(__global ushort4* src,__global ushort4* dst,
				int srcRows,int dstRows,int srcCols,int dstCols,
				int srcOffset,int dstOffset,int srcStep,int dstStep)
{
	const int x = get_global_id(0);
	const int y = get_global_id(1);
	
	__local float4 s_srcPatch[10][10];
	__local float4 s_dstPatch[20][16];
	
	srcOffset >>= 3;
	dstOffset >>= 3;
	srcStep >>= 3;
	dstStep >>= 3;
	

	if( get_local_id(0) < 10 && get_local_id(1) < 10 )
	{
		int srcx = (int)(get_group_id(0) * get_local_size(0) / 2 + get_local_id(0)) - 1;
		int srcy = (int)(get_group_id(1) * get_local_size(1) / 2 + get_local_id(1)) - 1;
		
		srcx = abs(srcx);
		srcx = min(srcCols - 1,srcx);
		
		srcy = abs(srcy);
		srcy = min(srcRows -1 ,srcy);
		
		s_srcPatch[get_local_id(1)][get_local_id(0)] = covert_ushort4_to_float4(src[srcx + srcy * srcStep]);
	}
	
	barrier(CLK_LOCAL_MEM_FENCE);
	
	float4 sum = (float4)(0,0,0,0);
	
	const int evenFlag = (int)((get_local_id(0) & 1) == 0);
	const int oddFlag = (int)((get_local_id(0) & 1) != 0);
	const bool  eveny = ((get_local_id(1) & 1) == 0);
	const int tidx = get_local_id(0);
	
	float4 co1 = (float4)(0.375f, 0.375f, 0.375f, 0.375f);
	float4 co2 = (float4)(0.25f, 0.25f, 0.25f, 0.25f);
	float4 co3 = (float4)(0.0625f, 0.0625f, 0.0625f, 0.0625f);

	
	if(eveny)
	{
		sum = sum + float4_x_float4(int_x_float4( evenFlag, co3 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 2) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( oddFlag , co2 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 1) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( evenFlag, co1 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx    ) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( oddFlag , co2 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 1) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( evenFlag, co3 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 2) >> 1)]);	
                
  	}
	
	s_dstPatch[2 + get_local_id(1)][get_local_id(0)] = sum;
	
	if (get_local_id(1) < 2)
    {
		sum = 0;

        if (eveny)
        {
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[0][1 + ((tidx - 2) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4( oddFlag , co2  ) , s_srcPatch[0][1 + ((tidx - 1) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4(evenFlag , co1 ) , s_srcPatch[0][1 + ((tidx    ) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4( oddFlag , co2  ) , s_srcPatch[0][1 + ((tidx + 1) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[0][1 + ((tidx + 2) >> 1)]);
         }

         s_dstPatch[get_local_id(1)][get_local_id(0)] = sum;
     }
     
     if (get_local_id(1) > 13)
     {
		sum = 0;

		if (eveny)
		{
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[9][1 + ((tidx - 2) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4( oddFlag , co2) , s_srcPatch[9][1 + ((tidx - 1) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co1) , s_srcPatch[9][1 + ((tidx    ) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4( oddFlag , co2) , s_srcPatch[9][1 + ((tidx + 1) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[9][1 + ((tidx + 2) >> 1)]);
			
		}
		s_dstPatch[4 + get_local_id(1)][get_local_id(0)] = sum;
     }

	barrier(CLK_LOCAL_MEM_FENCE);
	
	sum = 0;

    const int tidy = get_local_id(1);

    sum = sum + float4_x_float4(co3 , s_dstPatch[2 + tidy - 2][get_local_id(0)]);
    sum = sum + float4_x_float4(co2 , s_dstPatch[2 + tidy - 1][get_local_id(0)]);
    sum = sum + float4_x_float4(co1 , s_dstPatch[2 + tidy    ][get_local_id(0)]);
    sum = sum + float4_x_float4(co2 , s_dstPatch[2 + tidy + 1][get_local_id(0)]);
    sum = sum + float4_x_float4(co3 , s_dstPatch[2 + tidy + 2][get_local_id(0)]);

    if ((x < dstCols) && (y < dstRows))
    {
		dst[x + y * dstStep] = convert_float4_to_ushort4(int_x_float4(4.0f,sum));
	}
}

///////////////////////////////////////////////////////////////////////
//////////////////////////  CV_32FC4 //////////////////////////////////
///////////////////////////////////////////////////////////////////////
__kernel void pyrUp_C4_D5(__global float4* src,__global float4* dst,
				int srcRows,int dstRows,int srcCols,int dstCols,
				int srcOffset,int dstOffset,int srcStep,int dstStep)
{
	const int x = get_global_id(0);
	const int y = get_global_id(1);
	
	__local float4 s_srcPatch[10][10];
	__local float4 s_dstPatch[20][16];
	
	srcOffset >>= 4;
	dstOffset >>= 4;
	srcStep >>= 4;
	dstStep >>= 4;
	
	
	if( get_local_id(0) < 10 && get_local_id(1) < 10 )
	{
		int srcx = (int)(get_group_id(0) * get_local_size(0) / 2 + get_local_id(0)) - 1;
		int srcy = (int)(get_group_id(1) * get_local_size(1) / 2 + get_local_id(1)) - 1;
		
		srcx = abs(srcx);
		srcx = min(srcCols - 1,srcx);
		
		srcy = abs(srcy);
		srcy = min(srcRows -1 ,srcy);
		
		s_srcPatch[get_local_id(1)][get_local_id(0)] = (float4)(src[srcx + srcy * srcStep]);
	}
	
	barrier(CLK_LOCAL_MEM_FENCE);
	
	float4 sum = (float4)(0,0,0,0);
	
	const int evenFlag = (int)((get_local_id(0) & 1) == 0);
	const int oddFlag = (int)((get_local_id(0) & 1) != 0);
	const bool  eveny = ((get_local_id(1) & 1) == 0);
	const int tidx = get_local_id(0);
	
	float4 co1 = (float4)(0.375f, 0.375f, 0.375f, 0.375f);
	float4 co2 = (float4)(0.25f, 0.25f, 0.25f, 0.25f);
	float4 co3 = (float4)(0.0625f, 0.0625f, 0.0625f, 0.0625f);

	
	if(eveny)
	{
		sum = sum + float4_x_float4(int_x_float4( evenFlag, co3 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 2) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( oddFlag , co2 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx - 1) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( evenFlag, co1 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx    ) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( oddFlag , co2 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 1) >> 1)]);
        sum = sum + float4_x_float4(int_x_float4( evenFlag, co3 ) , s_srcPatch[1 + (get_local_id(1) >> 1)][1 + ((tidx + 2) >> 1)]);	
                
  	}
	
	s_dstPatch[2 + get_local_id(1)][get_local_id(0)] = sum;
	
	if (get_local_id(1) < 2)
    {
		sum = 0;

        if (eveny)
        {
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[0][1 + ((tidx - 2) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4( oddFlag , co2  ) , s_srcPatch[0][1 + ((tidx - 1) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4(evenFlag , co1 ) , s_srcPatch[0][1 + ((tidx    ) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4( oddFlag , co2  ) , s_srcPatch[0][1 + ((tidx + 1) >> 1)]);
            sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[0][1 + ((tidx + 2) >> 1)]);
         }

         s_dstPatch[get_local_id(1)][get_local_id(0)] = sum;
     }
     
     if (get_local_id(1) > 13)
     {
		sum = 0;

		if (eveny)
		{
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[9][1 + ((tidx - 2) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4( oddFlag , co2) , s_srcPatch[9][1 + ((tidx - 1) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co1) , s_srcPatch[9][1 + ((tidx    ) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4( oddFlag , co2) , s_srcPatch[9][1 + ((tidx + 1) >> 1)]);
			sum = sum + float4_x_float4(int_x_float4(evenFlag , co3) , s_srcPatch[9][1 + ((tidx + 2) >> 1)]);
			
		}
		s_dstPatch[4 + get_local_id(1)][get_local_id(0)] = sum;
     }

	barrier(CLK_LOCAL_MEM_FENCE);
	
	sum = 0;

    const int tidy = get_local_id(1);

    sum = sum + float4_x_float4(co3 , s_dstPatch[2 + tidy - 2][get_local_id(0)]);
    sum = sum + float4_x_float4(co2 , s_dstPatch[2 + tidy - 1][get_local_id(0)]);
    sum = sum + float4_x_float4(co1 , s_dstPatch[2 + tidy    ][get_local_id(0)]);
    sum = sum + float4_x_float4(co2 , s_dstPatch[2 + tidy + 1][get_local_id(0)]);
    sum = sum + float4_x_float4(co3 , s_dstPatch[2 + tidy + 2][get_local_id(0)]);

    if ((x < dstCols) && (y < dstRows))
    {
		dst[x + y * dstStep] = 4.0f * sum;
	}
}