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/*
* Copyright (c) 2017-2020 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/GLES_COMPUTE/kernels/GCActivationLayerKernel.h"
#include "arm_compute/core/GLES_COMPUTE/GCHelpers.h"
#include "arm_compute/core/GLES_COMPUTE/GCKernelLibrary.h"
#include "arm_compute/core/GLES_COMPUTE/IGCTensor.h"
#include "arm_compute/core/Helpers.h"
#include "arm_compute/core/IAccessWindow.h"
#include "arm_compute/core/TensorInfo.h"
#include "arm_compute/core/Utils.h"
#include "arm_compute/core/Validate.h"
#include "arm_compute/core/Window.h"
#include "support/StringSupport.h"
#include <set>
#include <string>
using namespace arm_compute;
GCActivationLayerKernel::GCActivationLayerKernel(GCCoreRuntimeContext *ctx)
: _input(nullptr), _output(nullptr), _ctx(ctx)
{
}
void GCActivationLayerKernel::configure(IGCTensor *input, IGCTensor *output, ActivationLayerInfo act_info)
{
ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::F16, DataType::F32);
// Make sure _kernel is initialized before calling the parent's configure
_input = input;
_output = input;
if(output != nullptr)
{
// Output auto inizialitation if not yet initialized
auto_init_if_empty(*output->info(), input->info()->tensor_shape(), 1, input->info()->data_type());
ARM_COMPUTE_ERROR_ON_MISMATCHING_SHAPES(input, output);
ARM_COMPUTE_ERROR_ON_MISMATCHING_DATA_TYPES(input, output);
_output = output;
}
unsigned int num_elems_processed_per_iteration = 4 / input->info()->element_size();
// Set build options
std::set<std::string> build_opts;
std::string dt_name = (input->info()->data_type() == DataType::F32) ? "DATA_TYPE_FP32" : "DATA_TYPE_FP16";
build_opts.emplace(("#define " + string_from_activation_func(act_info.activation())));
build_opts.emplace(("#define " + dt_name));
build_opts.emplace(("#define A_VAL " + float_to_string_with_full_precision(act_info.a())));
build_opts.emplace(("#define B_VAL " + float_to_string_with_full_precision(act_info.b())));
build_opts.emplace(("#define LOCAL_SIZE_X " + support::cpp11::to_string(1)));
build_opts.emplace(("#define LOCAL_SIZE_Y " + support::cpp11::to_string(1)));
build_opts.emplace(("#define LOCAL_SIZE_Z " + support::cpp11::to_string(1)));
// Create kernel
_kernel = create_opengl_kernel(_ctx, "activation_layer", build_opts);
// Configure kernel window
Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration));
if(output != nullptr)
{
AccessWindowHorizontal output_access(output->info(), 0, num_elems_processed_per_iteration);
update_window_and_padding(win,
AccessWindowHorizontal(input->info(), 0, num_elems_processed_per_iteration),
output_access);
output->info()->set_valid_region(ValidRegion(Coordinates(), output->info()->tensor_shape()));
}
else
{
update_window_and_padding(win,
AccessWindowHorizontal(input->info(), 0, num_elems_processed_per_iteration));
}
IGCKernel::configure(win);
}
void GCActivationLayerKernel::run(const Window &window)
{
ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IGCKernel::window(), window);
_kernel.use();
_output->set_needs_shifting(true);
Window collapsed = window.collapse_if_possible(IGCKernel::window(), Window::DimZ);
Window slice = collapsed.first_slice_window_3D();
Window slice_in = collapsed.first_slice_window_3D();
slice.shift(Window::DimX, -(_output->info()->padding()).left);
if(_input == _output)
{
slice_in.shift(Window::DimX, -(_input->info()->padding()).left);
}
do
{
unsigned int idx = 0;
unsigned int binding = 1;
add_3D_tensor_argument(idx, _input, binding++, slice);
add_3D_tensor_argument(idx, _output, binding++, slice_in);
_kernel.update_shader_params();
enqueue(*this, slice);
}
while(collapsed.slide_window_slice_3D(slice) && collapsed.slide_window_slice_3D(slice_in));
}
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