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/*
* Copyright (c) 2018-2020 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/CL/kernels/CLMemsetKernel.h"
#include "arm_compute/core/CL/ICLTensor.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/core/utils/misc/ShapeCalculator.h"
#include "support/StringSupport.h"
namespace arm_compute
{
CLMemsetKernel::CLMemsetKernel()
: ICLKernel(), _tensor(nullptr), _full_window()
{
}
void CLMemsetKernel::configure(ICLTensor *tensor,
const PixelValue &constant_value,
Window *window)
{
configure(CLKernelLibrary::get().get_compile_context(), tensor, constant_value, window);
}
void CLMemsetKernel::configure(const CLCompileContext &compile_context, ICLTensor *tensor,
const PixelValue &constant_value,
Window *window)
{
ARM_COMPUTE_ERROR_ON_NULLPTR(tensor);
ARM_COMPUTE_ERROR_THROW_ON(validate(tensor->info(), constant_value, window));
_tensor = tensor;
const DataType data_type = tensor->info()->data_type();
const int vec_size_x = 16 / tensor->info()->element_size();
// Create and update the window (if needed)
_full_window = calculate_max_window(*tensor->info());
Window win = _full_window;
if(window != nullptr)
{
ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(win, *window);
win = *window;
}
const int output_width_x = win.num_iterations(0);
const bool multi_access_x = output_width_x >= vec_size_x;
const bool remainder_x = output_width_x % vec_size_x > 0;
if(multi_access_x)
{
win.set(Window::DimX, Window::Dimension(win.x().start(), ceil_to_multiple(win.x().end(), vec_size_x), vec_size_x));
}
ICLKernel::configure_internal(win);
// Create kernel
CLBuildOptions build_opts;
build_opts.add_option("-DDATA_TYPE=" + get_cl_type_from_data_type(data_type));
build_opts.add_option("-DCONSTANT_VALUE=" + string_from_pixel_value(constant_value, data_type));
build_opts.add_option_if(multi_access_x, "-DVEC_SIZE=" + support::cpp11::to_string(vec_size_x));
build_opts.add_option_if(multi_access_x && remainder_x, "-DLAST_ACCESSED_X=" + support::cpp11::to_string(std::max<int>(output_width_x - vec_size_x, 0)));
_kernel = create_kernel(compile_context, "memset", build_opts.options());
}
Status CLMemsetKernel::validate(const ITensorInfo *tensor, const PixelValue &constant_value, Window *window)
{
ARM_COMPUTE_UNUSED(tensor);
ARM_COMPUTE_UNUSED(constant_value);
if(window != nullptr)
{
ARM_COMPUTE_RETURN_ERROR_ON(window->x().step() != 1);
}
return Status{};
}
void CLMemsetKernel::run(const Window &window, cl::CommandQueue &queue)
{
ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(ICLKernel::window(), window);
// Collapse all the batches on the third
Window collapsed = window.collapse_if_possible(_full_window, Window::DimZ);
Window slice = collapsed.first_slice_window_3D();
do
{
unsigned int idx = 0;
add_3D_tensor_argument(idx, _tensor, slice);
enqueue(queue, *this, slice, lws_hint());
}
while(collapsed.slide_window_slice_3D(slice));
}
} // namespace arm_compute
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