COMPMID-1946: Implement NEBatchToSpace

Change-Id: I119645eb3ea437c7dfe59545da58b328a7184f3f
Signed-off-by: giuros01 <giuseppe.rossini@arm.com>
Reviewed-on: https://review.mlplatform.org/c/734
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>

4 files changed, 179 insertions, 0 deletions

diff --git a/arm_compute/core/NEON/NEKernels.h b/arm_compute/core/NEON/NEKernels.h
index 6509e39d7d..8b37b2f603 100644
--- a/arm_compute/core/NEON/NEKernels.h
+++ b/arm_compute/core/NEON/NEKernels.h
@@ -31,6 +31,7 @@
 #include "arm_compute/core/NEON/kernels/NEArithmeticAdditionKernel.h"
 #include "arm_compute/core/NEON/kernels/NEArithmeticSubtractionKernel.h"
 #include "arm_compute/core/NEON/kernels/NEBatchNormalizationLayerKernel.h"
+#include "arm_compute/core/NEON/kernels/NEBatchToSpaceLayerKernel.h"
 #include "arm_compute/core/NEON/kernels/NEBitwiseAndKernel.h"
 #include "arm_compute/core/NEON/kernels/NEBitwiseNotKernel.h"
 #include "arm_compute/core/NEON/kernels/NEBitwiseOrKernel.h"
diff --git a/arm_compute/core/NEON/kernels/NEBatchToSpaceLayerKernel.h b/arm_compute/core/NEON/kernels/NEBatchToSpaceLayerKernel.h
new file mode 100644
index 0000000000..7a76e88576
--- /dev/null
+++ b/arm_compute/core/NEON/kernels/NEBatchToSpaceLayerKernel.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+#ifndef __ARM_COMPUTE_NEBATCHTOSPACELAYERKERNEL_H__
+#define __ARM_COMPUTE_NEBATCHTOSPACELAYERKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Interface for the batch to space kernel */
+class NEBatchToSpaceLayerKernel : public INEKernel
+{
+public:
+    const char *name() const override
+    {
+        return "NEBatchToSpaceLayerKernel";
+    }
+    /** Default constructor */
+    NEBatchToSpaceLayerKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEBatchToSpaceLayerKernel(const NEBatchToSpaceLayerKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEBatchToSpaceLayerKernel &operator=(const NEBatchToSpaceLayerKernel &) = delete;
+    /** Allow instances of this class to be moved */
+    NEBatchToSpaceLayerKernel(NEBatchToSpaceLayerKernel &&) = default;
+    /** Allow instances of this class to be moved */
+    NEBatchToSpaceLayerKernel &operator=(NEBatchToSpaceLayerKernel &&) = default;
+    /** Default destructor */
+    ~NEBatchToSpaceLayerKernel() = default;
+    /** Initialise the kernel's inputs and output.
+     *
+     * @param[in]  input       Tensor input. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in]  block_shape 1-D tensor with shape [M]. Data types supported: S32
+     * @param[out] output      Tensor output. Data types supported: same as @p input
+     */
+    void configure(const ITensor *input, const ITensor *block_shape, ITensor *output);
+    /** Initialise the kernel's inputs and output (Static block shape).
+     *
+     * @param[in]  input         Tensor input. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in]  block_shape_x Block shape x value.
+     * @param[in]  block_shape_y Block shape y value.
+     * @param[out] output        Tensor output. Data types supported: same as @p input
+     */
+    void configure(const ITensor *input, const int32_t block_shape_x, const int32_t block_shape_y, ITensor *output);
+    /** Static function to check if given info will lead to a valid configuration of @ref NEBatchToSpaceLayerKernel
+     *
+     * @param[in] input       Tensor input. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in] block_shape 1-D tensor with shape [M]. Data types supported: S32
+     * @param[in] output      Tensor output. Data types supported: same as @p input
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *block_shape, const ITensorInfo *output);
+    /** Static function to check if given info will lead to a valid configuration of @ref NEBatchToSpaceLayerKernel (Static block shape).
+     *
+     * @param[in] input         Tensor input. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in] block_shape_x Block shape x value.
+     * @param[in] block_shape_y Block shape y value.
+     * @param[in] output        Tensor output. Data types supported: same as @p input
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const int32_t block_shape_x, const int32_t block_shape_y, const ITensorInfo *output);
+
+    // Inherited methods overridden:
+    void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+    const ITensor *_input;       /**< Source tensor */
+    const ITensor *_block_shape; /**< Block shape tensor */
+    ITensor       *_output;      /**< Destination tensor */
+
+    int32_t _block_shape_x;
+    int32_t _block_shape_y;
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_NEBATCHTOSPACELAYERKERNEL_H__ */
diff --git a/arm_compute/runtime/NEON/NEFunctions.h b/arm_compute/runtime/NEON/NEFunctions.h
index a07e432b90..15ce4e3d66 100644
--- a/arm_compute/runtime/NEON/NEFunctions.h
+++ b/arm_compute/runtime/NEON/NEFunctions.h
@@ -32,6 +32,7 @@
 #include "arm_compute/runtime/NEON/functions/NEArithmeticAddition.h"
 #include "arm_compute/runtime/NEON/functions/NEArithmeticSubtraction.h"
 #include "arm_compute/runtime/NEON/functions/NEBatchNormalizationLayer.h"
+#include "arm_compute/runtime/NEON/functions/NEBatchToSpaceLayer.h"
 #include "arm_compute/runtime/NEON/functions/NEBitwiseAnd.h"
 #include "arm_compute/runtime/NEON/functions/NEBitwiseNot.h"
 #include "arm_compute/runtime/NEON/functions/NEBitwiseOr.h"
diff --git a/arm_compute/runtime/NEON/functions/NEBatchToSpaceLayer.h b/arm_compute/runtime/NEON/functions/NEBatchToSpaceLayer.h
new file mode 100644
index 0000000000..3ab3fa112e
--- /dev/null
+++ b/arm_compute/runtime/NEON/functions/NEBatchToSpaceLayer.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2019 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.
+ */
+#ifndef __ARM_COMPUTE_NEBATCHTOSPACELAYER_H__
+#define __ARM_COMPUTE_NEBATCHTOSPACELAYER_H__
+
+#include "arm_compute/runtime/IFunction.h"
+
+#include "arm_compute/core/NEON/kernels/NEBatchToSpaceLayerKernel.h"
+#include "arm_compute/core/Types.h"
+#include "arm_compute/runtime/NEON/INESimpleFunctionNoBorder.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Basic function to run @ref NEBatchToSpaceLayerKernel. */
+class NEBatchToSpaceLayer : public INESimpleFunctionNoBorder
+{
+public:
+    /** Set the input and output tensors.
+     *
+     * @param[in]  input       Tensor input. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in]  block_shape 1-D tensor with shape [M]. Data types supported: S32
+     * @param[out] output      Tensor output. Data types supported: same as @p input
+     */
+    void configure(const ITensor *input, const ITensor *block_shape, ITensor *output);
+    /** Set the input and output tensors. (Static block shape).
+     *
+     * @param[in]  input         Tensor input. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in]  block_shape_x Block shape x value.
+     * @param[in]  block_shape_y Block shape y value.
+     * @param[out] output        Tensor output. Data types supported: same as @p input
+     */
+    void configure(const ITensor *input, int32_t block_shape_x, int32_t block_shape_y, ITensor *output);
+    /** Static function to check if given info will lead to a valid configuration of @ref CLBatchToSpaceLayer
+     *
+     * @param[in]  input       Tensor input info. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in]  block_shape block shape tensor info with shape [M]. Data types supported: S32
+     * @param[out] output      Tensor output info. Data types supported: same as @p input
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *block_shape, const ITensorInfo *output);
+    /** Static function to check if given info will lead to a valid configuration of @ref CLBatchToSpaceLayer (Static block shape).
+     *
+     * @param[in]  input         Tensor input info. Supported tensor rank: 4. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in]  block_shape_x Block shape x value.
+     * @param[in]  block_shape_y Block shape y value.
+     * @param[out] output        Tensor output info. Data types supported: same as @p input
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, int32_t block_shape_x, int32_t block_shape_y, const ITensorInfo *output);
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_NEBATCHTOSPACELAYER_H__ */