COMPMID-359: Implement NEON ROIPoolingLayer

Change-Id: Ibffa738d4016d7221968bd43a4e6e1dab85baee8
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/78623
Reviewed-by: Moritz Pflanzer <moritz.pflanzer@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/tests/validation/Helpers.cpp b/tests/validation/Helpers.cpp
new file mode 100644
index 0000000000..747260ea99
--- /dev/null
+++ b/tests/validation/Helpers.cpp
@@ -0,0 +1,72 @@
+/*
+ * 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 "validation/Helpers.h"
+
+using namespace arm_compute::test;
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+std::vector<ROI> generate_random_rois(const TensorShape &shape, const ROIPoolingLayerInfo &pool_info, unsigned int num_rois, std::random_device::result_type seed)
+{
+    ARM_COMPUTE_ERROR_ON((pool_info.pooled_width() < 4) || (pool_info.pooled_height() < 4));
+
+    std::vector<ROI> rois;
+    std::mt19937     gen(seed);
+    const int        pool_width  = pool_info.pooled_width();
+    const int        pool_height = pool_info.pooled_height();
+    const float      roi_scale   = pool_info.spatial_scale();
+
+    // Calculate distribution bounds
+    const auto scaled_width  = static_cast<int>((shape.x() / roi_scale) / pool_width);
+    const auto scaled_height = static_cast<int>((shape.y() / roi_scale) / pool_height);
+    const auto min_width     = static_cast<int>(pool_width / roi_scale);
+    const auto min_height    = static_cast<int>(pool_height / roi_scale);
+
+    // Create distributions
+    std::uniform_int_distribution<int> dist_batch(0, shape[3] - 1);
+    std::uniform_int_distribution<int> dist_x(0, scaled_width);
+    std::uniform_int_distribution<int> dist_y(0, scaled_height);
+    std::uniform_int_distribution<int> dist_w(min_width, std::max(min_width, (pool_width - 2) * scaled_width));
+    std::uniform_int_distribution<int> dist_h(min_height, std::max(min_height, (pool_height - 2) * scaled_height));
+
+    for(unsigned int r = 0; r < num_rois; ++r)
+    {
+        ROI roi{};
+        roi.batch_idx   = dist_batch(gen);
+        roi.rect.x      = dist_x(gen);
+        roi.rect.y      = dist_y(gen);
+        roi.rect.width  = dist_w(gen);
+        roi.rect.height = dist_h(gen);
+        rois.push_back(roi);
+    }
+
+    return rois;
+}
+} // namespace validation
+} // namespace test
+} // namespace arm_compute