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/*
* Copyright (c) 2017-2021 Arm Limited.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "src/core/cpu/kernels/CpuReshapeKernel.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/core/Helpers.h"
#include "arm_compute/core/IAccessWindow.h"
#include "arm_compute/core/ITensor.h"
#include "arm_compute/core/TensorInfo.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/core/Validate.h"
#include "src/core/AccessWindowStatic.h"
#include "src/core/CPP/Validate.h"
#include "src/core/NEON/INEKernel.h"
#include "src/core/helpers/AutoConfiguration.h"
#include "src/core/helpers/WindowHelpers.h"
#include <cstdint>
/** [NEReshapeLayerKernel Kernel] **/
namespace arm_compute
{
namespace cpu
{
namespace kernels
{
namespace
{
Status validate_arguments(const ITensorInfo *src, const ITensorInfo *dst)
{
ARM_COMPUTE_RETURN_ERROR_ON_NULLPTR(src, dst);
// Note: ARM_COMPUTE_RETURN_ERROR_ON_CPU_F16_UNSUPPORTED(src) is not needed here as this kernel doesn't use Neon FP16 instructions.
ARM_COMPUTE_RETURN_ERROR_ON(src->data_type() == DataType::UNKNOWN);
ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_DATA_TYPES(src, dst);
ARM_COMPUTE_RETURN_ERROR_ON(src->tensor_shape().total_size() != dst->tensor_shape().total_size());
ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_QUANTIZATION_INFO(src, dst);
return Status{};
}
template <typename T>
inline void reshape_tensor(const Window &window, const ITensor *src, ITensor *dst)
{
const TensorShape &src_shape = src->info()->tensor_shape();
const TensorShape &dst_shape = dst->info()->tensor_shape();
Coordinates dst_coord{};
Iterator src_it(src, window);
execute_window_loop(window, [&](const Coordinates & id)
{
dst_coord = index2coords(dst_shape, coords2index(src_shape, id));
*reinterpret_cast<T *>(dst->ptr_to_element(dst_coord)) = *reinterpret_cast<T *>(src_it.ptr());
},
src_it);
}
} // namespace
void CpuReshapeKernel::configure(const ITensorInfo *src, ITensorInfo *dst)
{
ARM_COMPUTE_ERROR_ON_NULLPTR(src, dst);
ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(src, dst));
// Configure kernel window
Window win = calculate_max_window(*src);
// Set the destination valid region
dst->set_valid_region(ValidRegion(Coordinates(), dst->tensor_shape()));
ICpuKernel::configure(win);
}
Status CpuReshapeKernel::validate(const ITensorInfo *src, const ITensorInfo *dst)
{
ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(src, dst));
return Status{};
}
void CpuReshapeKernel::run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info)
{
ARM_COMPUTE_UNUSED(info);
ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICpuKernel::window(), window);
const auto src = tensors.get_const_tensor(TensorType::ACL_SRC);
auto dst = tensors.get_tensor(TensorType::ACL_DST);
switch(src->info()->data_type())
{
case DataType::U8:
case DataType::S8:
case DataType::QASYMM8:
case DataType::QASYMM8_SIGNED:
reshape_tensor<uint8_t>(window, src, dst);
break;
case DataType::U16:
case DataType::S16:
case DataType::F16:
reshape_tensor<uint16_t>(window, src, dst);
break;
case DataType::U32:
case DataType::S32:
case DataType::F32:
reshape_tensor<uint32_t>(window, src, dst);
break;
default:
ARM_COMPUTE_ERROR("Unsupported data type!");
}
}
const char *CpuReshapeKernel::name() const
{
return "CpuReshapeKernel";
}
} // namespace kernels
} // namespace cpu
} // namespace arm_compute
/** [NEReshapeLayerKernel Kernel] **/
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