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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// @Authors
// Shengen Yan,yanshengen@gmail.com
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other oclMaterials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors as is and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
/**************************************PUBLICFUNC*************************************/
#if defined (DOUBLE_SUPPORT)
#pragma OPENCL EXTENSION cl_khr_fp64:enable
#define RES_TYPE double4
#define CONVERT_RES_TYPE convert_double4
#else
#define RES_TYPE float4
#define CONVERT_RES_TYPE convert_float4
#endif
#if defined (DEPTH_0)
#define VEC_TYPE uchar4
#endif
#if defined (DEPTH_1)
#define VEC_TYPE char4
#endif
#if defined (DEPTH_2)
#define VEC_TYPE ushort4
#endif
#if defined (DEPTH_3)
#define VEC_TYPE short4
#endif
#if defined (DEPTH_4)
#define VEC_TYPE int4
#endif
#if defined (DEPTH_5)
#define VEC_TYPE float4
#endif
#if defined (DEPTH_6)
#define VEC_TYPE double4
#endif
#if defined (FUNC_TYPE_0)
#define FUNC(a,b) b += a;
#endif
#if defined (FUNC_TYPE_1)
#define FUNC(a,b) b = b + (a >= 0 ? a : -a);
#endif
#if defined (FUNC_TYPE_2)
#define FUNC(a,b) b = b + a * a;
#endif
#if defined (REPEAT_S0)
#define repeat_s(a,b,c) a=a; b =b; c=c;
#endif
#if defined (REPEAT_S1)
#define repeat_s(a,b,c) a.s0=0; b=b; c=c;
#endif
#if defined (REPEAT_S2)
#define repeat_s(a,b,c) a.s0=0; a.s1=0; b=b; c=c;
#endif
#if defined (REPEAT_S3)
#define repeat_s(a,b,c) a.s0=0; a.s1=0; a.s2=0; b=b; c=c;
#endif
#if defined (REPEAT_S4)
#define repeat_s(a,b,c) a=0;b=b; c=c;
#endif
#if defined (REPEAT_S5)
#define repeat_s(a,b,c) a=0; b.s0=0;c=c;
#endif
#if defined (REPEAT_S6)
#define repeat_s(a,b,c) a=0; b.s0=0; b.s1=0; c=c;
#endif
#if defined (REPEAT_S7)
#define repeat_s(a,b,c) a=0; b.s0=0; b.s1=0; b.s2=0; c=c;
#endif
#if defined (REPEAT_S8)
#define repeat_s(a,b,c) a=0; b=0; c=c;
#endif
#if defined (REPEAT_S9)
#define repeat_s(a,b,c) a=0; b=0; c.s0=0;
#endif
#if defined (REPEAT_S10)
#define repeat_s(a,b,c) a=0; b=0; c.s0=0; c.s1=0;
#endif
#if defined (REPEAT_S11)
#define repeat_s(a,b,c) a=0; b=0; c.s0=0; c.s1=0; c.s2=0;
#endif
#if defined (REPEAT_E0)
#define repeat_e(a,b,c) a=a; b =b; c=c;
#endif
#if defined (REPEAT_E1)
#define repeat_e(a,b,c) a=a; b=b; c.s3=0;
#endif
#if defined (REPEAT_E2)
#define repeat_e(a,b,c) a=a; b=b; c.s3=0; c.s2=0;
#endif
#if defined (REPEAT_E3)
#define repeat_e(a,b,c) a=a; b=b; c.s3=0; c.s2=0; c.s1=0;
#endif
#if defined (REPEAT_E4)
#define repeat_e(a,b,c) a=a; b=b; c=0;
#endif
#if defined (REPEAT_E5)
#define repeat_e(a,b,c) a=a; b.s3=0; c=0;
#endif
#if defined (REPEAT_E6)
#define repeat_e(a,b,c) a=a; b.s3=0; b.s2=0; c=0;
#endif
#if defined (REPEAT_E7)
#define repeat_e(a,b,c) a=a; b.s3=0; b.s2=0; b.s1=0; c=0;
#endif
#if defined (REPEAT_E8)
#define repeat_e(a,b,c) a=a; b=0; c=0;
#endif
#if defined (REPEAT_E9)
#define repeat_e(a,b,c) a.s3=0; b=0; c=0;
#endif
#if defined (REPEAT_E10)
#define repeat_e(a,b,c) a.s3=0; a.s2=0; b=0; c=0;
#endif
#if defined (REPEAT_E11)
#define repeat_e(a,b,c) a.s3=0; a.s2=0; a.s1=0; b=0; c=0;
#endif
__kernel void arithm_op_sum_3 (int cols,int invalid_cols,int offset,int elemnum,int groupnum,
__global VEC_TYPE *src, __global RES_TYPE *dst)
{
unsigned int lid = get_local_id(0);
unsigned int gid = get_group_id(0);
unsigned int id = get_global_id(0);
unsigned int idx = offset + id + (id / cols) * invalid_cols;
idx = idx * 3;
__local RES_TYPE localmem_sum1[128];
__local RES_TYPE localmem_sum2[128];
__local RES_TYPE localmem_sum3[128];
RES_TYPE sum1 = 0,sum2 = 0,sum3 = 0,temp1,temp2,temp3;
if(id < elemnum)
{
temp1 = CONVERT_RES_TYPE(src[idx]);
temp2 = CONVERT_RES_TYPE(src[idx+1]);
temp3 = CONVERT_RES_TYPE(src[idx+2]);
if(id % cols == 0 )
{
repeat_s(temp1,temp2,temp3);
}
if(id % cols == cols - 1)
{
repeat_e(temp1,temp2,temp3);
}
FUNC(temp1,sum1);
FUNC(temp2,sum2);
FUNC(temp3,sum3);
}
else
{
sum1 = 0;
sum2 = 0;
sum3 = 0;
}
for(id=id + (groupnum << 8); id < elemnum;id = id + (groupnum << 8))
{
idx = offset + id + (id / cols) * invalid_cols;
idx = idx * 3;
temp1 = CONVERT_RES_TYPE(src[idx]);
temp2 = CONVERT_RES_TYPE(src[idx+1]);
temp3 = CONVERT_RES_TYPE(src[idx+2]);
if(id % cols == 0 )
{
repeat_s(temp1,temp2,temp3);
}
if(id % cols == cols - 1)
{
repeat_e(temp1,temp2,temp3);
}
FUNC(temp1,sum1);
FUNC(temp2,sum2);
FUNC(temp3,sum3);
}
if(lid > 127)
{
localmem_sum1[lid - 128] = sum1;
localmem_sum2[lid - 128] = sum2;
localmem_sum3[lid - 128] = sum3;
}
barrier(CLK_LOCAL_MEM_FENCE);
if(lid < 128)
{
localmem_sum1[lid] = sum1 + localmem_sum1[lid];
localmem_sum2[lid] = sum2 + localmem_sum2[lid];
localmem_sum3[lid] = sum3 + localmem_sum3[lid];
}
barrier(CLK_LOCAL_MEM_FENCE);
for(int lsize = 64; lsize > 0; lsize >>= 1)
{
if(lid < lsize)
{
int lid2 = lsize + lid;
localmem_sum1[lid] = localmem_sum1[lid] + localmem_sum1[lid2];
localmem_sum2[lid] = localmem_sum2[lid] + localmem_sum2[lid2];
localmem_sum3[lid] = localmem_sum3[lid] + localmem_sum3[lid2];
}
barrier(CLK_LOCAL_MEM_FENCE);
}
if( lid == 0)
{
dst[gid*3] = localmem_sum1[0];
dst[gid*3+1] = localmem_sum2[0];
dst[gid*3+2] = localmem_sum3[0];
}
}