/*
// Copyright (c) 2016 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/

#include "concatenation_kernel_depth_bfyx_no_pitch.h"
#include "kernel_selector_utils.h"

namespace kernel_selector 
{

    ParamsKey ConcatenationKernel_depth_bfyx_no_pitch::GetSupportedKey() const
    {
        ParamsKey k;
        k.EnableInputDataType(Datatype::F32);
        k.EnableInputDataType(Datatype::F16);
        k.EnableOutputDataType(Datatype::F32);
        k.EnableOutputDataType(Datatype::F16);
        k.EnableInputLayout(DataLayout::bfyx);
        k.EnableInputLayout(DataLayout::bf);
        k.EnableOutputLayout(DataLayout::bfyx);
        k.EnableOutputLayout(DataLayout::bf);
        k.EnableTensorOffset();
        k.EnableBatching();
        k.EnableConcatAxis(ConcatAxis::FEATURE);
        k.EnableConcatKernelPerInput();
        return k;
    }

    bool ConcatenationKernel_depth_bfyx_no_pitch::Validate(const Params& p, const optional_params& o) const
    {
        if (!ConcatenationKernelBase::Validate(p, o))
        {
            return false;
        }

        const concatenation_params& params = static_cast<const concatenation_params&>(p);

        // all inputs have to have same layout
        auto same_layout = params.inputs[0].GetLayout();
        for (const auto& lt : params.inputs)
        { 
            if (lt.GetLayout() != same_layout)
            {
                return false;
            }
        }

        //kernel uses intel_sub_group_block_read that has 4-byte alignment requirement
        if (params.output.GetDType() == Datatype::F16)
        {
            size_t output_offset = 0;

            for (size_t i = 0; i < params.inputs.size(); i++)
            {
                for (size_t b = 0; b < params.output.Batch().v; b++)
                {
                    if ((output_offset + b*params.inputs[i].Batch().pitch) % 2 != 0)
                        return false;
                }
                output_offset += params.inputs[i].Batch().pitch;
            }
        }

        return true;
    }

    ConcatenationKernelBase::DispatchData ConcatenationKernel_depth_bfyx_no_pitch::SetDefault(const concatenation_params& params) const
    {
        DispatchData runInfo = ConcatenationKernelBase::SetDefault(params);
        const auto& input = params.inputs[0];
        const auto batch = input.Batch().v;
        runInfo.gws0 = batch;
        runInfo.gws1 = Align(std::max((size_t)1, input.LogicalSize() / batch), 16*8) / 8;
        runInfo.gws2 = 1;

        runInfo.lws0 = 1;
        runInfo.lws1 = 16;
        runInfo.lws2 = 1;
        
        runInfo.effiency = FORCE_PRIORITY_9;

        return runInfo;
    }

    KernelsData ConcatenationKernel_depth_bfyx_no_pitch::GetKernelsData(const Params& params, const optional_params& optParams) const
    {
        return GetCommonKernelsData(params, optParams);
    }
}