arm_compute v18.11
diff --git a/tests/validation/reference/SpaceToBatch.cpp b/tests/validation/reference/SpaceToBatch.cpp
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+/*
+ * Copyright (c) 2018 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 "SpaceToBatch.h"
+
+#include "tests/validation/Helpers.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace reference
+{
+// Space to Batch
+template <typename T>
+SimpleTensor<T> space_to_batch(const SimpleTensor<T> &src, const SimpleTensor<int32_t> &block_shape, const SimpleTensor<int32_t> &paddings, const TensorShape &dst_shape)
+{
+ SimpleTensor<T> result(dst_shape, src.data_type());
+
+ auto width_out = static_cast<int>(dst_shape[0]);
+ auto height_out = static_cast<int>(dst_shape[1]);
+ auto z_out = static_cast<int>(dst_shape[2]);
+
+ int out_pos = 0;
+ for(int batch = 0; batch < static_cast<int>(dst_shape[3]); ++batch)
+ {
+ for(int z = 0; z < z_out; ++z)
+ {
+ for(int y = 0; y < height_out; ++y)
+ {
+ for(int x = 0; x < width_out; ++x)
+ {
+ if(x < paddings[0] || x > width_out - paddings[1] - 1
+ || y < paddings[2] || y > height_out - paddings[3] - 1)
+ {
+ result[out_pos] = 0;
+ }
+ else
+ {
+ const int r = dst_shape[3] / (block_shape[0] * block_shape[1]);
+ const int in_x = (block_shape[0] * (x - paddings[0]) + (batch / r) % block_shape[0]);
+ const int in_y = (block_shape[1] * (y - paddings[2]) + (batch / r) / block_shape[0]);
+ int in_pos = in_x + src.shape()[0] * in_y + z * src.shape()[0] * src.shape()[1] + (batch % r) * src.shape()[0] * src.shape()[1] * src.shape()[2];
+ result[out_pos] = src[in_pos];
+ }
+ ++out_pos;
+ }
+ }
+ }
+ }
+
+ return result;
+}
+
+template SimpleTensor<float> space_to_batch(const SimpleTensor<float> &src, const SimpleTensor<int32_t> &block_shape, const SimpleTensor<int32_t> &paddings, const TensorShape &dst_shape);
+template SimpleTensor<half> space_to_batch(const SimpleTensor<half> &src, const SimpleTensor<int32_t> &block_shape, const SimpleTensor<int32_t> &paddings, const TensorShape &dst_shape);
+} // namespace reference
+} // namespace validation
+} // namespace test
+} // namespace arm_compute