// Tencent is pleased to support the open source community by making TNN available.
//
// Copyright (C) 2020 THL A29 Limited, a Tencent company. All rights reserved.
//
// Licensed under the BSD 3-Clause License (the "License"); you may not use this file except
// in compliance with the License. You may obtain a copy of the License at
//
// https://opensource.org/licenses/BSD-3-Clause
//
// 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.

#ifndef TNN_SOURCE_TNN_DEVICE_METAL_METAL_MULTIDIR_BROADCAST_LAYER_ACC_H_
#define TNN_SOURCE_TNN_DEVICE_METAL_METAL_MULTIDIR_BROADCAST_LAYER_ACC_H_

#include "tnn/device/metal/acc/metal_layer_acc.h"

namespace TNN_NS {

// @brief broadcast layer metal acc
class MetalMultidirBroadcastLayerAcc : public MetalLayerAcc {
public:
    // @brief virtual destrcutor
    virtual ~MetalMultidirBroadcastLayerAcc();

    Status AllocateBufferParam(const std::vector<Blob *> &inputs, const std::vector<Blob *> &outputs);

    virtual Status Forward(const std::vector<Blob *> &inputs, const std::vector<Blob *> &outputs);
    
public:
    virtual Status SetKernelEncoderParam(
                                         id<MTLComputeCommandEncoder> encoder,
                                         const std::vector<Blob *> &inputs,
                                         const std::vector<Blob *> &outputs);

protected:
    id<MTLBuffer> buffer_weight_ = nil;
    virtual Status ReloadConstantBlobs(const std::vector<Blob *> &inputs, bool only_reload_shape_differ_blob = false);
};

#define DECLARE_METAL_MULTIDIR_BROADCAST_ACC(type_string, layer_type)                                                  \
    class Metal##type_string##LayerAcc : public MetalMultidirBroadcastLayerAcc {                                       \
    public:                                                                                                            \
        virtual ~Metal##type_string##LayerAcc(){};                                                                     \
        virtual std::string KernelName(const std::vector<Blob *> &inputs, const std::vector<Blob *> &outputs);         \
        virtual Status Reshape(const std::vector<Blob *> &inputs, const std::vector<Blob *> &outputs);                 \
        virtual Status Forward(const std::vector<Blob *> &inputs, const std::vector<Blob *> &outputs);                 \
    }

#define REGISTER_METAL_MULTIDIR_BROADCAST_ACC(type_string, layer_type) REGISTER_METAL_ACC(type_string, layer_type)

}  // namespace TNN_NS

#endif  // TNN_SOURCE_TNN_DEVICE_METAL_METAL_MULTIDIR_BROADCAST_LAYER_ACC_H_
