/*
// 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 "fully_connected_kernel_fb_io_b8_f8.h"
#include "kernel_selector_utils.h"

namespace kernel_selector 
{
    ParamsKey FullyConnected_fb_io_b8_f8::GetSupportedKey() const
    {
        ParamsKey k;
        k.EnableInputDataType(Datatype::F32);
        k.EnableInputDataType(Datatype::F16);
        k.EnableOutputDataType(Datatype::F32);
        k.EnableOutputDataType(Datatype::F16);
        k.EnableInputWeightsType(WeightsType::F32);
        k.EnableInputWeightsType(WeightsType::F16);
        k.EnableAllInputLayout();
        k.EnableOutputLayout(DataLayout::fb);
        k.EnableBatching();
        k.EnableBiasPerFeature();
        k.EnableNonBiasTerm();
        k.EnableSubGroup();
        return k;
    }

    std::unique_ptr<FullyConnected_fb_io_b8_f8::DispatchData> FullyConnected_fb_io_b8_f8::SetDefault(const fully_connected_params& arg) const
    {
        auto kd = FullyConnectedBlockKernelBase::SetDefault(arg);

        const auto& output = arg.output;
        
        size_t groups_per_batches = GetLocalGroupsSize(arg);
        kd->gws0 = output.LogicalSize() / (GetNeuronsPerWorkItem(arg) * GetBatchesPerWorkItem(arg) * groups_per_batches);
        kd->gws1 = groups_per_batches;
        kd->lws0 = 8;
        kd->lws1 = 1;

        return std::move(kd);
    }

    bool FullyConnected_fb_io_b8_f8::Validate(const Params& p, const optional_params& o) const
    {
        if (!FullyConnectedBlockKernelBase::Validate(p, o))
        {
            return false;
        }

        const auto& params = static_cast<const fully_connected_params&>(p);

        const auto& output = params.output;
        const auto batches = output.Batch().v;
        const auto x_size = output.LogicalSize() / batches;

        const bool bSupportedBatch = (batches % 8) == 0;
        const bool bSupportedFeature = (x_size % 8) == 0;

        if (!bSupportedBatch ||
            !bSupportedFeature)
        {
            return false;
        }

        return true;
    }

    KernelsData FullyConnected_fb_io_b8_f8::GetKernelsData(const Params& params, const optional_params& optParams) const
    {
        assert(params.GetType() == KernelType::FULLY_CONNECTED);

        const auto& orgParams = static_cast<const fully_connected_params&>(params);

        float estimated_time =
            orgParams.inputs[0].GetDType() == Datatype::F16 && orgParams.output.Batch().v >= 16 ?
            FORCE_PRIORITY_3 : FORCE_PRIORITY_5;
        
        return GetCommonKernelsData(params, optParams, DataLayout::fb, { WeightsLayout::io }, estimated_time);
    }
}