COMPMID-3638: Move NEON kernels
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Change-Id: Ieed3e4bc8be7fef80c90c5094599b477a56fc473
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4285
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/NEON/kernels/NEChannelExtractKernel.h b/src/core/NEON/kernels/NEChannelExtractKernel.h
new file mode 100644
index 0000000..0b2847d
--- /dev/null
+++ b/src/core/NEON/kernels/NEChannelExtractKernel.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2016-2020 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_NECHANNELEXTRACTKERNEL_H
+#define ARM_COMPUTE_NECHANNELEXTRACTKERNEL_H
+
+#include "arm_compute/core/Types.h"
+#include "src/core/NEON/INESimpleKernel.h"
+
+namespace arm_compute
+{
+class IMultiImage;
+class ITensor;
+using IImage = ITensor;
+
+/** Interface for the channel extract kernel */
+class NEChannelExtractKernel : public INESimpleKernel
+{
+public:
+ const char *name() const override
+ {
+ return "NEChannelExtractKernel";
+ }
+ /** Default constructor */
+ NEChannelExtractKernel();
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEChannelExtractKernel(const NEChannelExtractKernel &) = delete;
+ /** Prevent instances of this class from being copied (As this class contains pointers) */
+ NEChannelExtractKernel &operator=(const NEChannelExtractKernel &) = delete;
+ /** Allow instances of this class to be moved */
+ NEChannelExtractKernel(NEChannelExtractKernel &&) = default;
+ /** Allow instances of this class to be moved */
+ NEChannelExtractKernel &operator=(NEChannelExtractKernel &&) = default;
+ /** Default destructor */
+ ~NEChannelExtractKernel() = default;
+
+ /** Set the input and output of the kernel
+ *
+ * @param[in] input Source tensor. Formats supported: RGB888/RGBA8888/YUYV422/UYVY422
+ * @param[in] channel Channel to extract.
+ * @param[out] output Destination tensor. Format supported: U8
+ */
+ void configure(const ITensor *input, Channel channel, ITensor *output);
+ /** Set the input and output of the kernel
+ *
+ * @param[in] input Multi-planar source image. Formats supported: NV12/NV21/IYUV/YUV444
+ * @param[in] channel Channel to extract.
+ * @param[out] output Single-planar destination image. Format supported: U8
+ */
+ void configure(const IMultiImage *input, Channel channel, IImage *output);
+
+ // Inherited methods overridden:
+ void run(const Window &window, const ThreadInfo &info) override;
+
+private:
+ /** Extract one channel from a two channel planar tensor.
+ *
+ * @param[in] win Region on which to execute the kernel.
+ */
+ void extract_1C_from_2C_img(const Window &win);
+ /** Extract one channel from a three channel planar tensor.
+ *
+ * @param[in] win Region on which to execute the kernel.
+ */
+ void extract_1C_from_3C_img(const Window &win);
+ /** Extract one channel from a four channel planar tensor.
+ *
+ * @param[in] win Region on which to execute the kernel.
+ */
+ void extract_1C_from_4C_img(const Window &win);
+ /** Extract U/V channel from a single planar YUVY/UYVY tensor.
+ *
+ * @param[in] win Region on which to execute the kernel.
+ */
+ void extract_YUYV_uv(const Window &win);
+ /** Copies a full plane to the output tensor.
+ *
+ * @param[in] win Region on which to execute the kernel.
+ */
+ void copy_plane(const Window &win);
+ /** Common signature for all the specialised ChannelExtract functions
+ *
+ * @param[in] window Region on which to execute the kernel.
+ */
+ using ChannelExtractFunction = void (NEChannelExtractKernel::*)(const Window &window);
+ /** ChannelExtract function to use for the particular tensor types passed to configure() */
+ ChannelExtractFunction _func;
+ unsigned int _lut_index;
+};
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_NECHANNELEXTRACTKERNEL_H */