#include "cl_viv_vx_ext.h"

_viv_uniform int width;
_viv_uniform int height;
_viv_uniform float dimRatio;
_viv_uniform int group_num;
_viv_uniform VXC_512Bits UniFP16toFP32Lo4_dp4x4;
_viv_uniform VXC_512Bits uniConvertHalfToFp16_2x8;

_viv_uniform float inFlScale_s2;
_viv_uniform float input_fl_scale;
_viv_uniform float inOut_fl_scale;
_viv_uniform float output_fl_scale;

_viv_uniform VXC_512Bits uniInt16SumSqr_dp8x2;
_viv_uniform VXC_512Bits uniConvertInt16Fp32Fst_4x4;
_viv_uniform VXC_512Bits uniConvertInt16Fp32Secd_4x4;
_viv_uniform VXC_512Bits uniConvertInt32toInt16_2x8;

__kernel __attribute__((reqd_work_group_size(16, 1, 1))) void instance_norm_meanvari_I16(
    image2d_array_t input,
    image2d_array_t output,
              float eps,
              int rsFlg)
{
    int gidx = get_global_id(0) << 3;
    int lidx = get_local_id(0);
    int gidz = get_global_id(1);
    int4 coord = (int4)(gidx, 0, gidz, gidz);
    vxc_short8 src0;
    float sum = 0, sqr = 0;
    vxc_float4 sumsqr = (vxc_float4)(0);
    vxc_float4 tmpSumSqr = (vxc_float4)(0);

    __local float lcl_sum[16];
    __local float lcl_sqr[16];

    int8 input_desc;
    _viv_asm(COPY, input_desc, input, sizeof(input_desc));
    int baseAddr_a = (int)get_global_id(1) * input_desc.s4 + input_desc.s0;
    _viv_asm(MOV, coord.z, baseAddr_a);
    if(gidx < width)
    {
        for(coord.y = 0; coord.y < height;)
        {
            VXC_OP4(img_load_3d, src0, input, coord, 0, \
                    VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));
            coord.y++;
            VXC_DP8x2(sumsqr, src0, src0, VXC_MODIFIER(0, 1, 0, VXC_RM_TowardZero, 0),\
                uniInt16SumSqr_dp8x2);
            //tmpSumSqr += sumsqr;
            tmpSumSqr.x += sumsqr.x;
            sqr += (sumsqr.y * inFlScale_s2);
        }
        sum = tmpSumSqr.x * input_fl_scale;
        //sqr = tmpSumSqr.y * inFlScale_s2;
    }

    lcl_sum[lidx] = sum;
    lcl_sqr[lidx] = sqr;
    barrier(CLK_LOCAL_MEM_FENCE);

    int4 coord_out = (int4)(get_group_id(0) << 2, gidz, 0, 0);
    if(lidx == 0)
    {
        float4 one = (float4)(1, 1, 1, 1);
        __local float4* tmp_sum = (__local float4*)lcl_sum;
        __local float4* tmp_sqr = (__local float4*)lcl_sqr;

        sum = 0; sqr = 0;
        for(int i = 0; i < 4; i++)
        {
            //sum += lcl_sum[i];
            //sqr += lcl_sqr[i];
            sum += dot(tmp_sum[i], one);
            sqr += dot(tmp_sqr[i], one);
        }

        float4 data = (float4)(sum, sqr, 0, 0);
        write_imagef(output, coord_out, data);
    }
}

__kernel __attribute__((reqd_work_group_size(16, 1, 1))) void instance_norm_meanvari_I16_2D(
    image2d_array_t input,
    image2d_array_t output,
              float eps,
              int rsFlg)
{
    int gidx = get_global_id(0) << 3;
    int lidx = get_local_id(0);
    int gidz = get_global_id(1);
    int gidy = gidz * height;

    int2 coord = (int2)(gidx, gidy);
    vxc_short8 src0;
    float sum = 0, sqr = 0;
    vxc_float4 sumsqr = (vxc_float4)(0);
    vxc_float4 tmpSumSqr = (vxc_float4)(0);

    __local float lcl_sum[16];
    __local float lcl_sqr[16];

    int endH = gidy + height;
    if(gidx < width)
    {
        for(; coord.y < endH;)
        {
            VXC_ReadImage(src0, input, coord, 0,
                VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));
            coord.y++;
            VXC_DP8x2(sumsqr, src0, src0, VXC_MODIFIER(0, 1, 0, VXC_RM_TowardZero, 0),\
                uniInt16SumSqr_dp8x2);
            //tmpSumSqr += sumsqr;
            tmpSumSqr.x += sumsqr.x;
            sqr += (sumsqr.y * inFlScale_s2);
        }
        sum = tmpSumSqr.x * input_fl_scale;
        //sqr = tmpSumSqr.y * inFlScale_s2;
    }

    lcl_sum[lidx] = sum;
    lcl_sqr[lidx] = sqr;
    barrier(CLK_LOCAL_MEM_FENCE);

    int4 coord_out = (int4)(get_group_id(0) << 2, gidz, 0, 0);
    if(lidx == 0)
    {
        float4 one = (float4)(1, 1, 1, 1);
        __local float4* tmp_sum = (__local float4*)lcl_sum;
        __local float4* tmp_sqr = (__local float4*)lcl_sqr;

        sum = 0; sqr = 0;
        for(int i = 0; i < 4; i++)
        {
            //sum += lcl_sum[i];
            //sqr += lcl_sqr[i];
            sum += dot(tmp_sum[i], one);
            sqr += dot(tmp_sqr[i], one);
        }

        float4 data = (float4)(sum, sqr, 0, 0);
        write_imagef(output, coord_out, data);
    }
}

__kernel __attribute__((reqd_work_group_size(16, 1, 1))) void instance_norm_I16toF16(
    image2d_array_t input,
    image2d_array_t bias,
    image2d_array_t scale,
    image2d_t meanVari,
    image2d_array_t output,
              float eps,
              int rsFlg)
{
    int gidz = get_global_id(1);
    int4 coord = (int4)(get_global_id(0), 0, gidz, gidz);
    int4 coord_in = (int4)(get_global_id(0), 0, gidz, gidz);
    int4 coord_para = (int4)(gidz, 0, 0, 0);
    vxc_short8 src0;
    vxc_short8 src1;
    vxc_half8 scale_h;
    float scale_vari, bias_val;
    vxc_float4 bias_f, scale_f, mean_vari = (vxc_float4)(0);

    VXC_ReadImage(src1, scale, coord_para.xy, 0,\
        VXC_MODIFIER(0, 0, 0, VXC_RM_TowardZero, 0));
    _viv_asm(COPY, scale_h, src1, 16);
    VXC_DP4x4(scale_f, scale_h, scale_h, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        UniFP16toFP32Lo4_dp4x4);

    bias_f = read_imagef(bias, coord_para);

    for(int i = 0; i < group_num; i++)
    {
        mean_vari += read_imagef(meanVari, coord_para.yx);
        coord_para.y += 4;
    }
    mean_vari *= dimRatio;
    mean_vari.s1 = mean_vari.s1 - mean_vari.s0 * mean_vari.s0 + eps;
    mean_vari.s1 = rsqrt(mean_vari.s1);

    scale_vari = scale_f.s0 * mean_vari.s1;
    vxc_float4  tmpData0, tmpData1;
    vxc_short8 outval;
    half4 tmpVal0, tmpVal1;
    float alpha = input_fl_scale * scale_vari;
    bias_val = (bias_f.s0 - scale_vari * mean_vari.s0);
    vxc_half8 dst;

    int8 input_desc, output_desc;
    _viv_asm(COPY, input_desc, input, sizeof(input_desc));
    int baseAddr_a = (int)get_global_id(1) * input_desc.s4 + input_desc.s0;
    _viv_asm(MOV, coord_in.z, baseAddr_a);

    _viv_asm(COPY, output_desc, output, sizeof(output_desc));
    int baseAddr = (int)get_global_id(1) * output_desc.s4 + output_desc.s0;
    _viv_asm(MOV, coord.z, baseAddr);

    for(coord.y = 0; coord.y < height; coord.y++)
    {
    VXC_OP4(img_load_3d, src0, input, coord_in, 0, \
                    VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));
    coord_in.y ++;
    VXC_DP4x4(tmpData0, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Fst_4x4);
    VXC_DP4x4(tmpData1, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Secd_4x4);

    vxc_float4 norm;
    norm = alpha * tmpData0 + bias_val;
    _viv_asm(CONV, tmpVal0, norm);
    norm = alpha * tmpData1 + bias_val;
    _viv_asm(CONV, tmpVal1, norm);
    VXC_DP2x8(dst, tmpVal0, tmpVal1, VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0),\
        uniConvertHalfToFp16_2x8);
    _viv_asm(COPY, outval, dst, 16);
    VXC_OP4_NoDest(img_store_3d, output, coord, outval, \
                    VXC_MODIFIER(0, 7, 0,VXC_RM_TowardZero, 0));
    }
}

__kernel __attribute__((reqd_work_group_size(16, 1, 1))) void instance_norm_I16toF16_2D(
    image2d_array_t input,
    image2d_array_t bias,
    image2d_array_t scale,
    image2d_t meanVari,
    image2d_array_t output,
              float eps,
              int rsFlg)
{
    int gidz = get_global_id(1);
    int gidy = gidz * height;
    int4 coord = (int4)(get_global_id(0), gidy, 0, 0);
    int4 coord_para = (int4)(gidz, 0, 0, 0);
    int endH = gidy + height;
    vxc_short8 src0;
    vxc_short8 src1;
    vxc_half8 scale_h;
    float scale_vari, bias_val;
    vxc_float4 bias_f, scale_f, mean_vari = (vxc_float4)(0);

    VXC_ReadImage(src1, scale, coord_para.xy, 0,\
        VXC_MODIFIER(0, 0, 0, VXC_RM_TowardZero, 0));
    _viv_asm(COPY, scale_h, src1, 16);
    VXC_DP4x4(scale_f, scale_h, scale_h, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        UniFP16toFP32Lo4_dp4x4);

    bias_f = read_imagef(bias, coord_para);

    for(int i = 0; i < group_num; i++)
    {
        mean_vari += read_imagef(meanVari, coord_para.yx);
        coord_para.y += 4;
    }
    mean_vari *= dimRatio;
    mean_vari.s1 = mean_vari.s1 - mean_vari.s0 * mean_vari.s0 + eps;
    mean_vari.s1 = rsqrt(mean_vari.s1);

    scale_vari = scale_f.s0 * mean_vari.s1;
    vxc_float4  tmpData0, tmpData1;
    vxc_short8 outval;
    half4 tmpVal0, tmpVal1;
    float alpha = input_fl_scale * scale_vari;
    bias_val = (bias_f.s0 - scale_vari * mean_vari.s0);
    vxc_half8 dst;

    for(; coord.y < endH; coord.y++)
    {
    VXC_ReadImage(src0, input, coord.xy, 0,\
        VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));

    VXC_DP4x4(tmpData0, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Fst_4x4);
    VXC_DP4x4(tmpData1, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Secd_4x4);
    vxc_float4 norm;
    norm = alpha * tmpData0 + bias_val;
    _viv_asm(CONV, tmpVal0, norm);
    norm = alpha * tmpData1 + bias_val;
    _viv_asm(CONV, tmpVal1, norm);
    VXC_DP2x8(dst, tmpVal0, tmpVal1, VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0),\
        uniConvertHalfToFp16_2x8);
    _viv_asm(COPY, outval, dst, 16);
    VXC_WriteImage(output, coord.xy, outval, VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));
    }
}

__kernel __attribute__((reqd_work_group_size(16, 1, 1))) void instance_norm_I16toI16(
    image2d_array_t input,
    image2d_array_t bias,
    image2d_array_t scale,
    image2d_t meanVari,
    image2d_array_t output,
              float eps,
              int rsFlg)
{
    int gidz = get_global_id(1);
    int4 coord = (int4)(get_global_id(0), 0, gidz, gidz);
    int4 coord_in = (int4)(get_global_id(0), 0, gidz, gidz);
    int4 coord_para = (int4)(gidz, 0, 0, 0);
    vxc_short8 src0, src2;
    vxc_short8 src1;
    vxc_half8 scale_h;
    float scale_vari, bias_val;
    vxc_float4 bias_f, scale_f, mean_vari = (vxc_float4)(0);

    VXC_ReadImage(src1, scale, coord_para.xy, 0,\
        VXC_MODIFIER(0, 0, 0, VXC_RM_TowardZero, 0));
    _viv_asm(COPY, scale_h, src1, 16);
    VXC_DP4x4(scale_f, scale_h, scale_h, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0), UniFP16toFP32Lo4_dp4x4);

    bias_f = read_imagef(bias, coord_para);
    for(int i = 0; i < group_num; i++)
    {
        mean_vari += read_imagef(meanVari, coord_para.yx);
        coord_para.y += 4;
    }
    mean_vari *= dimRatio;
    mean_vari.s1 = mean_vari.s1 - mean_vari.s0 * mean_vari.s0 + eps;
    mean_vari.s1 = rsqrt(mean_vari.s1);

    scale_vari = scale_f.s0 * mean_vari.s1;
    vxc_int4 tmpVal0, tmpVal1;
    vxc_float4  tmpData0, tmpData1;
    float alpha = inOut_fl_scale * scale_vari;
    bias_val = (bias_f.s0 - scale_vari * mean_vari.s0) * output_fl_scale;

    int8 input_desc, output_desc;
    _viv_asm(COPY, input_desc, input, sizeof(input_desc));
    int baseAddr_a = (int)get_global_id(1) * input_desc.s4 + input_desc.s0;
    _viv_asm(MOV, coord_in.z, baseAddr_a);

    _viv_asm(COPY, output_desc, output, sizeof(output_desc));
    int baseAddr = (int)get_global_id(1) * output_desc.s4 + output_desc.s0;
    _viv_asm(MOV, coord.z, baseAddr);
    for(coord.y = 0; coord.y < height; coord.y++)
    {
    VXC_OP4(img_load_3d, src0, input, coord_in, 0, \
                    VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));
    coord_in.y ++;
    VXC_DP4x4(tmpData0, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Fst_4x4);
    VXC_DP4x4(tmpData1, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Secd_4x4);
    vxc_float4 norm;
    norm = tmpData0 * alpha + bias_val;
    tmpVal0 = convert_int4_rte(norm);
    norm = tmpData1 * alpha + bias_val;
    tmpVal1 = convert_int4_rte(norm);
    VXC_DP2x8(src2, tmpVal0, tmpVal1, VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 1),\
        uniConvertInt32toInt16_2x8);
    VXC_OP4_NoDest(img_store_3d, output, coord, src2, \
                    VXC_MODIFIER(0, 7, 0,VXC_RM_TowardZero, 0));
    }
}

__kernel __attribute__((reqd_work_group_size(16, 1, 1))) void instance_norm_I16toI16_2D(
    image2d_array_t input,
    image2d_array_t bias,
    image2d_array_t scale,
    image2d_t meanVari,
    image2d_array_t output,
              float eps,
              int rsFlg)
{
    int gidz = get_global_id(1);
    int gidy = gidz * height;
    int2 coord = (int2)(get_global_id(0), gidy);
    int4 coord_para = (int4)(gidz, 0, 0, 0);
    int endH = gidy + height;
    vxc_short8 src0, src2;
    vxc_short8 src1;
    vxc_half8 scale_h;
    float scale_vari, bias_val;
    vxc_float4 bias_f, scale_f, mean_vari = (vxc_float4)(0);

    VXC_ReadImage(src1, scale, coord_para.xy, 0,\
        VXC_MODIFIER(0, 0, 0, VXC_RM_TowardZero, 0));
    _viv_asm(COPY, scale_h, src1, 16);
    VXC_DP4x4(scale_f, scale_h, scale_h, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0), UniFP16toFP32Lo4_dp4x4);

    bias_f = read_imagef(bias, coord_para);
    for(int i = 0; i < group_num; i++)
    {
        mean_vari += read_imagef(meanVari, coord_para.yx);
        coord_para.y += 4;
    }
    mean_vari *= dimRatio;
    mean_vari.s1 = mean_vari.s1 - mean_vari.s0 * mean_vari.s0 + eps;
    mean_vari.s1 = rsqrt(mean_vari.s1);

    scale_vari = scale_f.s0 * mean_vari.s1;
    vxc_int4 tmpVal0, tmpVal1;
    vxc_float4  tmpData0, tmpData1;
    float alpha = inOut_fl_scale * scale_vari;
    bias_val = (bias_f.s0 - scale_vari * mean_vari.s0) * output_fl_scale;

    for(; coord.y < endH; coord.y++)
    {
    VXC_ReadImage(src0, input, coord, 0,\
        VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));
    VXC_DP4x4(tmpData0, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Fst_4x4);
    VXC_DP4x4(tmpData1, src0, src0, VXC_MODIFIER(0, 3, 0, VXC_RM_TowardZero, 0),\
        uniConvertInt16Fp32Secd_4x4);
    vxc_float4 norm;
    norm = tmpData0 * alpha + bias_val;
    tmpVal0 = convert_int4_rte(norm);
    norm = tmpData1 * alpha + bias_val;
    tmpVal1 = convert_int4_rte(norm);
    VXC_DP2x8(src2, tmpVal0, tmpVal1, VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 1),\
        uniConvertInt32toInt16_2x8);
    VXC_WriteImage(output, coord, src2, VXC_MODIFIER(0, 7, 0, VXC_RM_TowardZero, 0));
    }
}