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-rw-r--r--tests/validation/CPP/Scale.cpp182
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diff --git a/tests/validation/CPP/Scale.cpp b/tests/validation/CPP/Scale.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 "arm_compute/core/Helpers.h"
-
-#include "Scale.h"
-#include "Utils.h"
-#include "support/ToolchainSupport.h"
-
-namespace arm_compute
-{
-namespace test
-{
-namespace validation
-{
-namespace reference
-{
-template <typename T>
-SimpleTensor<T> scale(const SimpleTensor<T> &in, float scale_x, float scale_y, InterpolationPolicy policy, BorderMode border_mode, T constant_border_value,
- SamplingPolicy sampling_policy, bool ceil_policy_scale)
-{
- // Add 1 if ceil_policy_scale is true
- const size_t round_value = ceil_policy_scale ? 1U : 0U;
- TensorShape shape_scaled(in.shape());
- shape_scaled.set(0, (in.shape()[0] + round_value) * scale_x);
- shape_scaled.set(1, (in.shape()[1] + round_value) * scale_y);
- SimpleTensor<T> out(shape_scaled, in.data_type());
-
- // Compute the ratio between source width/height and destination width/height
- const auto wr = static_cast<float>(in.shape()[0]) / static_cast<float>(out.shape()[0]);
- const auto hr = static_cast<float>(in.shape()[1]) / static_cast<float>(out.shape()[1]);
-
- const auto width = static_cast<int>(in.shape().x());
- const auto height = static_cast<int>(in.shape().y());
-
- // Determine border size
- const int border_size = (border_mode == BorderMode::UNDEFINED) ? 0 : 1;
-
- // Area interpolation behaves as Nearest Neighbour in case of up-sampling
- if(policy == InterpolationPolicy::AREA && wr <= 1.f && hr <= 1.f)
- {
- policy = InterpolationPolicy::NEAREST_NEIGHBOR;
- }
-
- for(int element_idx = 0, count = 0; element_idx < out.num_elements(); ++element_idx, ++count)
- {
- Coordinates id = index2coord(out.shape(), element_idx);
- int idx = id.x();
- int idy = id.y();
- float x_src = 0;
- float y_src = 0;
-
- switch(sampling_policy)
- {
- case SamplingPolicy::TOP_LEFT:
- x_src = idx * wr;
- y_src = idy * hr;
- break;
- case SamplingPolicy::CENTER:
- x_src = (idx + 0.5f) * wr - 0.5f;
- y_src = (idy + 0.5f) * hr - 0.5f;
- break;
- default:
- ARM_COMPUTE_ERROR("Unsupported sampling policy.");
- break;
- }
-
- switch(policy)
- {
- case InterpolationPolicy::NEAREST_NEIGHBOR:
- {
- //Calculate the source coords without -0.5f is equivalent to round the x_scr/y_src coords
- x_src = (idx + 0.5f) * wr;
- y_src = (idy + 0.5f) * hr;
- id.set(0, x_src);
- id.set(1, y_src);
-
- // If coordinates in range of tensor's width or height
- if(is_valid_pixel_index(x_src, y_src, width, height, border_size))
- {
- out[element_idx] = tensor_elem_at(in, id, border_mode, constant_border_value);
- }
- break;
- }
- case InterpolationPolicy::BILINEAR:
- {
- id.set(0, std::floor(x_src));
- id.set(1, std::floor(y_src));
- if(is_valid_pixel_index(x_src, y_src, width, height, border_size))
- {
- out[element_idx] = bilinear_policy(in, id, x_src, y_src, border_mode, constant_border_value);
- }
- else
- {
- if(border_mode == BorderMode::CONSTANT)
- {
- out[element_idx] = constant_border_value;
- }
- else if(border_mode == BorderMode::REPLICATE)
- {
- id.set(0, clamp(static_cast<int>(x_src), 0, width - 1));
- id.set(1, clamp(static_cast<int>(y_src), 0, height - 1));
- out[element_idx] = in[coord2index(in.shape(), id)];
- }
- }
- break;
- }
- case InterpolationPolicy::AREA:
- {
- int x_from = std::floor(idx * wr - 0.5f - x_src);
- int y_from = std::floor(idy * hr - 0.5f - y_src);
- int x_to = std::ceil((idx + 1) * wr - 0.5f - x_src);
- int y_to = std::ceil((idy + 1) * hr - 0.5f - y_src);
- const int xi = std::floor(x_src);
- const int yi = std::floor(y_src);
-
- // Clamp position to borders
- x_src = std::max(-static_cast<float>(border_size), std::min(x_src, static_cast<float>(width - 1 + border_size)));
- y_src = std::max(-static_cast<float>(border_size), std::min(y_src, static_cast<float>(height - 1 + border_size)));
-
- // Clamp bounding box offsets to borders
- x_from = ((x_src + x_from) < -border_size) ? -border_size : x_from;
- y_from = ((y_src + y_from) < -border_size) ? -border_size : y_from;
- x_to = ((x_src + x_to) >= (width + border_size)) ? (width - 1 + border_size) : x_to;
- y_to = ((y_src + y_to) >= (height + border_size)) ? (height - 1 + border_size) : y_to;
- ARM_COMPUTE_ERROR_ON((x_to - x_from + 1) == 0 || (y_to - y_from + 1) == 0);
-
- float sum = 0;
- for(int j = yi + y_from, je = yi + y_to; j <= je; ++j)
- {
- for(int i = xi + x_from, ie = xi + x_to; i <= ie; ++i)
- {
- id.set(0, static_cast<int>(i));
- id.set(1, static_cast<int>(j));
- sum += tensor_elem_at(in, id, border_mode, constant_border_value);
- }
- }
- out[element_idx] = sum / ((x_to - x_from + 1) * (y_to - y_from + 1));
-
- break;
- }
- default:
- ARM_COMPUTE_ERROR("Unsupported interpolation mode");
- }
- }
-
- return out;
-}
-
-template SimpleTensor<uint8_t> scale(const SimpleTensor<uint8_t> &src, float scale_x, float scale_y, InterpolationPolicy policy, BorderMode border_mode, uint8_t constant_border_value,
- SamplingPolicy sampling_policy, bool ceil_policy_scale);
-template SimpleTensor<int16_t> scale(const SimpleTensor<int16_t> &src, float scale_x, float scale_y, InterpolationPolicy policy, BorderMode border_mode, int16_t constant_border_value,
- SamplingPolicy sampling_policy, bool ceil_policy_scale);
-template SimpleTensor<half> scale(const SimpleTensor<half> &src, float scale_x, float scale_y, InterpolationPolicy policy, BorderMode border_mode, half constant_border_value,
- SamplingPolicy sampling_policy, bool ceil_policy_scale);
-template SimpleTensor<float> scale(const SimpleTensor<float> &src, float scale_x, float scale_y, InterpolationPolicy policy, BorderMode border_mode, float constant_border_value,
- SamplingPolicy sampling_policy, bool ceil_policy_scale);
-} // namespace reference
-} // namespace validation
-} // namespace test
-} // namespace arm_compute
generated by cgit v1.2.1 (git 2.23.0) at 2024-06-02 21:24:48 +0000