megenginelite-sys 1.8.2

/**
 * \file dnn/src/naive/transpose/opr_impl.cpp
 * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 *
 * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */
#include "src/naive/transpose/opr_impl.h"

#include "src/common/utils.h"
#include "src/naive/handle.h"

namespace megdnn {
namespace naive {

template <typename T>
void exec_internal(_megdnn_tensor_in src, _megdnn_tensor_out dst) {
    auto m = dst.layout.shape[0], n = dst.layout.shape[1];
    rep(i, m) rep(j, n) {
        dst.ptr<T>()[i * dst.layout.stride[0] + j] =
                src.ptr<T>()[j * src.layout.stride[0] + i];
    }
}

void TransposeForwardImpl::exec(
        _megdnn_tensor_in src, _megdnn_tensor_out dst, _megdnn_workspace workspace) {
    check_exec(src.layout, dst.layout, workspace.size);
#define cb(DType)                                                     \
    if (src.layout.dtype.enumv() == DTypeTrait<DType>::enumv) {       \
        using ctype = typename DTypeTrait<DType>::ctype;              \
        MEGDNN_DISPATCH_CPU_KERN_OPR(exec_internal<ctype>(src, dst)); \
        return;                                                       \
    }
    MEGDNN_FOREACH_COMPUTING_DTYPE(cb)
    MEGDNN_FOREACH_QUANTIZED_DTYPE(cb)
#undef cb
    megdnn_assert_internal(0);
}

}  // namespace naive
}  // namespace megdnn

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