APPBROWSER-356: Implement GCArithmeticAddition Operator

Change-Id: I4ce55e69b3a76ab3539955d5ad12a226159b1daa
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/114222
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>

1 files changed, 152 insertions, 0 deletions

diff --git a/src/core/GLES_COMPUTE/kernels/GCArithmeticAdditionKernel.cpp b/src/core/GLES_COMPUTE/kernels/GCArithmeticAdditionKernel.cpp
new file mode 100644
index 0000000000..caec324de2
--- /dev/null
+++ b/src/core/GLES_COMPUTE/kernels/GCArithmeticAdditionKernel.cpp
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2016, 2017 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/GCArithmeticAdditionKernel.h"
+
+#include "arm_compute/core/Error.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/GLES_COMPUTE/OpenGLES.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 <cstddef>
+#include <set>
+#include <string>
+
+using namespace arm_compute;
+
+namespace
+{
+Status validate_arguments(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output, ConvertPolicy policy)
+{
+    ARM_COMPUTE_UNUSED(policy);
+    ARM_COMPUTE_ERROR_ON_NULLPTR(input1, input2, output);
+    ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input1, 1, DataType::F16);
+    ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input2, 1, DataType::F16);
+    ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(input1, input2);
+
+    // Validate in case of configured output
+    if((output != nullptr) && (output->total_size() != 0))
+    {
+        ARM_COMPUTE_RETURN_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output, 1, DataType::F16);
+        ARM_COMPUTE_RETURN_ERROR_ON_MISMATCHING_SHAPES(input1, output);
+    }
+
+    return Status{};
+}
+
+std::pair<Status, Window> validate_and_configure_window(ITensorInfo *input1, ITensorInfo *input2, ITensorInfo *output)
+{
+    constexpr unsigned int num_elems_processed_per_iteration = 8;
+
+    Window win = calculate_max_window(*input1, Steps(num_elems_processed_per_iteration));
+
+    AccessWindowHorizontal input1_access(input1, 0, num_elems_processed_per_iteration);
+    AccessWindowHorizontal input2_access(input2, 0, num_elems_processed_per_iteration);
+    AccessWindowHorizontal output_access(output, 0, num_elems_processed_per_iteration);
+
+    bool window_changed = update_window_and_padding(win, input1_access, input2_access, output_access);
+
+    ValidRegion valid_region = intersect_valid_regions(input1->valid_region(),
+                                                       input2->valid_region());
+
+    output_access.set_valid_region(win, valid_region);
+
+    Status err = (window_changed) ? ARM_COMPUTE_CREATE_ERROR(ErrorCode::RUNTIME_ERROR, "Insufficient Padding!") : Status{};
+    return std::make_pair(err, win);
+}
+} // namespace
+
+GCArithmeticAdditionKernel::GCArithmeticAdditionKernel()
+    : _input1(nullptr), _input2(nullptr), _output(nullptr)
+{
+}
+
+void GCArithmeticAdditionKernel::configure(const IGCTensor *input1, const IGCTensor *input2, IGCTensor *output, ConvertPolicy policy)
+{
+    ARM_COMPUTE_UNUSED(policy);
+    ARM_COMPUTE_ERROR_ON_NULLPTR(input1, input2, output);
+
+    // Auto initialize output if not initialized
+    {
+        set_shape_if_empty(*output->info(), input1->info()->tensor_shape());
+        set_format_if_unknown(*output->info(), Format::F16);
+    }
+
+    ARM_COMPUTE_ERROR_THROW_ON(validate_arguments(input1->info(), input2->info(), output->info(), policy));
+
+    _input1 = input1;
+    _input2 = input2;
+    _output = output;
+
+    // Set kernel build options
+    std::set<std::string> build_opts;
+    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 = static_cast<GCKernel>(GCKernelLibrary::get().create_kernel("arithmetic_add", build_opts));
+
+    // Configure kernel window
+    auto win_config = validate_and_configure_window(input1->info(), input2->info(), output->info());
+    ARM_COMPUTE_ERROR_THROW_ON(win_config.first);
+    IGCKernel::configure(win_config.second);
+}
+
+Status GCArithmeticAdditionKernel::validate(const ITensorInfo *input1, const ITensorInfo *input2, const ITensorInfo *output, ConvertPolicy policy)
+{
+    ARM_COMPUTE_RETURN_ON_ERROR(validate_arguments(input1, input2, output, policy));
+    ARM_COMPUTE_RETURN_ON_ERROR(validate_and_configure_window(input1->clone().get(), input2->clone().get(), output->clone().get()).first);
+
+    return Status{};
+}
+
+void GCArithmeticAdditionKernel::run(const Window &window)
+{
+    ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this);
+    ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(IGCKernel::window(), window);
+
+    _kernel.use();
+
+    Window slice = window.first_slice_window_2D();
+    do
+    {
+        unsigned int idx     = 0;
+        unsigned int binding = 1; // SSBO binding starts from 1.
+        add_2D_tensor_argument(idx, _input1, binding++, slice);
+        add_2D_tensor_argument(idx, _input2, binding++, slice);
+        add_2D_tensor_argument(idx, _output, binding++, slice);
+
+        _kernel.update_shader_params();
+
+        enqueue(*this, slice);
+    }
+    while(window.slide_window_slice_2D(slice));
+}