COMPMID-1772: Implement PadV2 for NEON

Change-Id: Ia4604524a034c46b004fd850183480c5fbfd8cb3
Reviewed-on: https://review.mlplatform.org/437
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>

1 files changed, 79 insertions, 0 deletions

diff --git a/arm_compute/runtime/NEON/functions/NEPadLayer.h b/arm_compute/runtime/NEON/functions/NEPadLayer.h
new file mode 100644
index 0000000000..3a0863802a
--- /dev/null
+++ b/arm_compute/runtime/NEON/functions/NEPadLayer.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2018-2019 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_NEPADLAYER_H__
+#define __ARM_COMPUTE_NEPADLAYER_H__
+
+#include "arm_compute/runtime/IFunction.h"
+#include "arm_compute/runtime/SubTensor.h"
+
+#include "arm_compute/core/NEON/kernels/NECopyKernel.h"
+#include "arm_compute/core/NEON/kernels/NEMemsetKernel.h"
+#include "arm_compute/core/Types.h"
+
+namespace arm_compute
+{
+// Forward declarations
+class ITensor;
+
+/** Basic function to pad a tensor. This function calls the following NEON kernels:
+ *
+ *  -# @ref NEMemsetKernel
+ *  -# @ref NECopyKernel
+ */
+class NEPadLayer : public IFunction
+{
+public:
+    /** Default constructor*/
+    NEPadLayer();
+    /** Initialize the function
+     *
+     * @param[in]  input          Source tensor. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[out] output         Output tensor. Data type supported: same as @p input
+     * @param[in]  padding        The padding for each spatial dimension of the input tensor. The pair padding[i]
+     *                            specifies the front and the end padding in the i-th dimension.
+     * @param[in]  constant_value (Optional) Constant value to be used for the padding
+     */
+    void configure(ITensor *input, ITensor *output, const PaddingList &padding, PixelValue constant_value = PixelValue());
+    /**  Static function to check if given info will lead to a valid configuration of @ref NEPadLayer.
+     *
+     * @param[in] input          Source tensor info. Data types supported: U8/S8/QASYMM8/U16/S16/F16/U32/S32/F32.
+     * @param[in] output         Output tensor info. Data type supported: same as @p input
+     * @param[in] padding        The padding for each spatial dimension of the input tensor. The pair padding[i]
+     *                           specifies the front and the end padding in the i-th dimension.
+     * @param[in] constant_value (Optional) Constant value to be used for the padding
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, const PaddingList &padding, PixelValue constant_value = PixelValue());
+
+    // Inherited methods overridden:
+    void run() override;
+
+private:
+    NEMemsetKernel _memset_kernel;
+    NECopyKernel   _copy_kernel;
+    SubTensor      _output_subtensor;
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_NEPADLAYER_H__ */