text: /*
   * Copyright (c) 2018-2021 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/CpuFillKernel.h"
  
  #include "arm_compute/core/Helpers.h"
  #include "arm_compute/core/ITensor.h"
  #include "arm_compute/core/Utils.h"
  #include "arm_compute/core/Validate.h"
  #include "arm_compute/core/Window.h"
  #include "src/core/AccessWindowStatic.h"
  #include "src/core/helpers/AutoConfiguration.h"
  #include "src/core/helpers/WindowHelpers.h"
  
  namespace arm_compute
  {
  namespace cpu
  {
  namespace kernels
  {
  void CpuFillKernel::configure(const ITensorInfo *tensor, const PixelValue &constant_value)
  {
      ARM_COMPUTE_ERROR_ON_NULLPTR(tensor);
      _constant_value = constant_value;
  
      // Configure kernel window
      Window win = calculate_max_window(*tensor, Steps());
      ICpuKernel::configure(win);
  }
  
  void CpuFillKernel::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);
  
      auto inout = tensors.get_tensor(TensorType::ACL_SRC_DST);
  
      // Collapse all the batches on the third dimension
      bool   has_collapsed = true;
      Window collapsed     = window.collapse_if_possible(window, Window::DimZ, &has_collapsed);
      ARM_COMPUTE_ERROR_ON(!has_collapsed);
  
      uint8_t *const start_valid_region = inout->ptr_to_element(inout->info()->valid_region().anchor);
      const auto     window_width       = static_cast<int>(collapsed.x().end()) - static_cast<int>(collapsed.x().start());
      const size_t   element_size       = inout->info()->element_size();
  
      // Unroll X dimension
      collapsed.set(Window::DimX, Window::Dimension(0, 1, 1));
  
      Iterator tensor_it(inout, collapsed);
      execute_window_loop(collapsed, [&](const Coordinates &)
      {
          uint8_t *base_addr = start_valid_region + tensor_it.offset();
          // Set memory
          for(int i = 0; i < window_width; ++i)
          {
              std::memcpy(base_addr + i * element_size, &_constant_value.value, element_size);
          }
  
      },
      tensor_it);
  }
  
  const char *CpuFillKernel::name() const
  {
      return "CpuFillKernel";
  }
  } // namespace kernels
  } // namespace cpu
  } // namespace arm_compute
  