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/*
* Copyright (c) 2022-2024 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 "arm_compute/core/Helpers.h"
#include "arm_compute/function_info/ActivationLayerInfo.h"
#include "src/cpu/kernels/lut/list.h"
namespace arm_compute
{
namespace cpu
{
#ifdef __aarch64__
void neon_q8_activation_lut(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window)
{
ARM_COMPUTE_ERROR_ON( // LUT does not provide any performance benefit for ReLU as it's a single max() operation
(src->info()->data_type() != DataType::QASYMM8 && src->info()->data_type() != DataType::QASYMM8_SIGNED) ||
act_info.activation() == ActivationLayerInfo::ActivationFunction::RELU);
const auto window_end_x = window.x().end();
Window win_collapsed = window.collapse_if_possible(window, Window::DimZ);
win_collapsed.set(Window::DimX, Window::Dimension(0, 1, 1));
Iterator input(src, win_collapsed);
Iterator output(dst, win_collapsed);
execute_window_loop(
win_collapsed,
[&](const Coordinates &)
{
const auto input_ptr = reinterpret_cast<const uint8_t *>(input.ptr());
auto output_ptr = reinterpret_cast<uint8_t *>(output.ptr());
lut_u8_neon(act_info.lut().data(), 1u, window_end_x, &input_ptr, &output_ptr);
},
input, output);
}
#endif // __aarch64__
} // namespace cpu
} // namespace arm_compute
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