COMPMID-1596 Create UpsampleLayer for NEON

Change-Id: I82d95c4f1c5fed13b213a2591cc2b4e0d0e02a54
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/149676
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
Tested-by: bsgcomp <bsgcomp@arm.com>

1 files changed, 121 insertions, 0 deletions

diff --git a/arm_compute/core/NEON/kernels/NEUpsampleLayerKernel.h b/arm_compute/core/NEON/kernels/NEUpsampleLayerKernel.h
new file mode 100644
index 0000000000..cf21e6cf73
--- /dev/null
+++ b/arm_compute/core/NEON/kernels/NEUpsampleLayerKernel.h
@@ -0,0 +1,121 @@
+/*
+ * 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.
+ */
+#ifndef __ARM_COMPUTE_NEUPSAMPLELAYERKERNEL_H__
+#define __ARM_COMPUTE_NEUPSAMPLELAYERKERNEL_H__
+
+#include "arm_compute/core/NEON/INEKernel.h"
+
+namespace arm_compute
+{
+class ITensor;
+
+/** Interface for the Upsample layer kernel.*/
+class NEUpsampleLayerKernel : public INEKernel
+{
+public:
+    const char *name() const override
+    {
+        return "NEUpsampleLayerKernel";
+    }
+    /** Default constructor */
+    NEUpsampleLayerKernel();
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEUpsampleLayerKernel(const NEUpsampleLayerKernel &) = delete;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    NEUpsampleLayerKernel &operator=(const NEUpsampleLayerKernel &) = delete;
+    /** Default Move Constructor. */
+    NEUpsampleLayerKernel(NEUpsampleLayerKernel &&) = default;
+    /** Default move assignment operator */
+    NEUpsampleLayerKernel &operator=(NEUpsampleLayerKernel &&) = default;
+    /** Default destructor */
+    ~NEUpsampleLayerKernel() = default;
+    /** Set the input output tensors.
+     *
+     * @param[in]  input  Source tensor. Data types supported: QASYMM8/F16/F32.
+     * @param[out] output Destination tensor. Data types supported: same as @p input.
+     * @param[in]  info   Contains stride information described in @ref Size2D.
+     * @param[in]  policy Defines the policy to fill the intermediate pixels.
+     *
+     */
+    void configure(const ITensor *input, ITensor *output, const Size2D &info, const InterpolationPolicy policy);
+    /** Static function to check if given info will lead to a valid configuration of @ref NEUpsampleLayerKernel
+     *
+     * @param[in] input  Source tensor info. Data types supported: QASYMM8/F16/F32.
+     * @param[in] output Destination tensor info. Data types supported: same as @p input.
+     * @param[in] info   Contains stride information described in @ref Size2D.
+     * @param[in] policy Defines the policy to fill the intermediate pixels.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, const Size2D &info, const InterpolationPolicy policy);
+
+    // Inherited methods overridden:
+    void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+    /** Function to run upsample layer for FP32 (NCHW)
+     *
+     * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()).
+     */
+    void upsample_f32_nchw(const Window &window);
+    /** Function to run upsample layer for FP32 (NHWC)
+     *
+     * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()).
+     */
+    void upsample_f32_nhwc(const Window &window);
+    /** Function to run upsample layer for FP16 (NCHW)
+     *
+     * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()).
+     */
+    void upsample_f16_nchw(const Window &window);
+    /** Function to run upsample layer for FP16 (NHWC)
+     *
+     * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()).
+     */
+    void upsample_f16_nhwc(const Window &window);
+    /** Function to run upsample layer for QASYMM8 (NCHW)
+     *
+     * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()).
+     */
+    void upsample_qasymm8_nchw(const Window &window);
+    /** Function to run upsample layer for QASYMM8 (NHWC)
+     *
+     * @param[in] window Region on which to execute the kernel. (Must be a valid region of the window returned by window()).
+     */
+    void upsample_qasymm8_nhwc(const Window &window);
+    /** Common signature for all the upsample layer functions
+     *
+     * @param[in] window Region on which to execute the kernel.
+     */
+    using UpsampleFunctionPtr = void (NEUpsampleLayerKernel::*)(const Window &window);
+
+private:
+    UpsampleFunctionPtr _func;
+    const ITensor      *_input;
+    ITensor            *_output;
+    Size2D              _info;
+    unsigned int        _num_elems_processed_per_iteration_x;
+};
+} // namespace arm_compute
+#endif /*__ARM_COMPUTE_NEUPSAMPLELAYERKERNEL_H__ */