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-rw-r--r--tests/validation/CPP/QuantizationLayer.cpp87
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diff --git a/tests/validation/CPP/QuantizationLayer.cpp b/tests/validation/CPP/QuantizationLayer.cpp
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-/*
- * Copyright (c) 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 "QuantizationLayer.h"
-
-#include <cmath>
-
-namespace arm_compute
-{
-namespace test
-{
-namespace validation
-{
-namespace reference
-{
-template <typename T, typename std::enable_if<is_floating_point<T>::value, int>::type>
-SimpleTensor<uint8_t> quantization_layer(const SimpleTensor<T> &src)
-{
- // Create reference
- SimpleTensor<uint8_t> dst{ src.shape(), DataType::U8 };
-
- const int width = src.shape().x();
- const int height = src.shape().y();
- const int depth = src.shape().z();
- const int stride_w = width * height * depth;
- const int num_batches = src.shape().total_size_upper(3);
-
- for(int k = 0; k < num_batches; ++k)
- {
- // Compute min and max of the 3D tensor
- float min = src[k * stride_w];
- float max = src[k * stride_w];
-
- // Look for min and max values
- for(int i = 1; i < stride_w; ++i)
- {
- float val = src[i + k * stride_w];
- min = std::min(min, val);
- max = std::max(max, val);
- }
-
- // Saturate the result in case min = max
- if(min == max)
- {
- min = 0.0f;
- max = 1.0f;
- }
-
- const float range = max - min;
-
- for(int i = 0; i < stride_w; ++i)
- {
- // map values to range [0.0, 1.0]
- float val = src[i + k * stride_w];
- const float normalized = (val - min) / range;
- dst[i + k * stride_w] = static_cast<uint8_t>(std::min(255.0f, normalized * 256.0f));
- }
- }
-
- return dst;
-}
-
-template SimpleTensor<uint8_t> quantization_layer(const SimpleTensor<float> &src);
-} // namespace reference
-} // namespace validation
-} // namespace test
-} // namespace arm_compute