summaryrefslogtreecommitdiff
path: root/onert-micro/luci-interpreter/pal/common/PALAveragePool2DCommon.h
diff options
context:
space:
mode:
Diffstat (limited to 'onert-micro/luci-interpreter/pal/common/PALAveragePool2DCommon.h')
-rw-r--r--onert-micro/luci-interpreter/pal/common/PALAveragePool2DCommon.h93
1 files changed, 93 insertions, 0 deletions
diff --git a/onert-micro/luci-interpreter/pal/common/PALAveragePool2DCommon.h b/onert-micro/luci-interpreter/pal/common/PALAveragePool2DCommon.h
new file mode 100644
index 000000000..ec6bb55b5
--- /dev/null
+++ b/onert-micro/luci-interpreter/pal/common/PALAveragePool2DCommon.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2023 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright 2020 The TensorFlow Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LUCI_INTERPRETER_PAL_AVERAGE_POOL_2D_COMMON_H
+#define LUCI_INTERPRETER_PAL_AVERAGE_POOL_2D_COMMON_H
+
+#include "Params.h"
+#include "PALUtils.h"
+
+namespace luci_interpreter_pal
+{
+
+// TODO: reduce code duplication with MaxPool
+inline void AveragePool(const PoolParams &params, const luci_interpreter::RuntimeShape &input_shape,
+ const float *input_data, const luci_interpreter::RuntimeShape &output_shape,
+ float *output_data)
+{
+ const int batches = input_shape.dims(0);
+ const int depth = output_shape.dims(3);
+ const int input_height = input_shape.dims(1);
+ const int input_width = input_shape.dims(2);
+ const int output_height = output_shape.dims(1);
+ const int output_width = output_shape.dims(2);
+ const int stride_height = params.stride_height;
+ const int stride_width = params.stride_width;
+ for (int batch = 0; batch < batches; ++batch)
+ {
+ for (int out_y = 0; out_y < output_height; ++out_y)
+ {
+ for (int out_x = 0; out_x < output_width; ++out_x)
+ {
+ for (int channel = 0; channel < depth; ++channel)
+ {
+ const int in_x_origin = (out_x * stride_width) - params.padding_values.width;
+ const int in_y_origin = (out_y * stride_height) - params.padding_values.height;
+ // Compute the boundaries of the filter region clamped so as to
+ // ensure that the filter window fits in the input array.
+ const int filter_x_start = std::max(0, -in_x_origin);
+ const int filter_x_end = std::min(params.filter_width, input_width - in_x_origin);
+ const int filter_y_start = std::max(0, -in_y_origin);
+ const int filter_y_end = std::min(params.filter_height, input_height - in_y_origin);
+
+ float total = 0.f;
+ float filter_count = 0;
+
+ for (int filter_y = filter_y_start; filter_y < filter_y_end; ++filter_y)
+ {
+ for (int filter_x = filter_x_start; filter_x < filter_x_end; ++filter_x)
+ {
+ const int in_x = in_x_origin + filter_x;
+ const int in_y = in_y_origin + filter_y;
+
+ const int input_data_offset =
+ ((batch * input_shape.dims(1) + in_y) * input_shape.dims(2) + in_x) *
+ input_shape.dims(3) +
+ channel;
+
+ total += input_data[input_data_offset];
+ filter_count++;
+ }
+ }
+ const int output_data_offset =
+ ((batch * output_shape.dims(1) + out_y) * output_shape.dims(2) + out_x) *
+ output_shape.dims(3) +
+ channel;
+
+ assert(filter_count != 0);
+ const float average = total / filter_count;
+
+ output_data[output_data_offset] =
+ std::min(std::max(average, params.float_activation_min), params.float_activation_max);
+ }
+ }
+ }
+ }
+}
+} // namespace luci_interpreter_pal
+
+#endif // LUCI_INTERPRETER_PAL_AVERAGE_POOL_2D_COMMON_H