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Diffstat (limited to 'src/core/cpu/kernels/CpuScaleKernel.h')
| -rw-r--r-- | src/core/cpu/kernels/CpuScaleKernel.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/src/core/cpu/kernels/CpuScaleKernel.h b/src/core/cpu/kernels/CpuScaleKernel.h new file mode 100644 index 0000000000..c1de8e0736 --- /dev/null +++ b/src/core/cpu/kernels/CpuScaleKernel.h @@ -0,0 +1,111 @@ +/* + * Copyright (c) 2021 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_CPU_SCALEKERNEL_H +#define ARM_COMPUTE_CPU_SCALEKERNEL_H + +#include "arm_compute/core/KernelDescriptors.h" +#include "src/core/common/Macros.h" +#include "src/core/cpu/ICpuKernel.h" + +namespace arm_compute +{ +namespace cpu +{ +namespace kernels +{ +/** Arm(R) Neon(TM) kernel to perform scaling on a tensor */ +class CpuScaleKernel : public ICpuKernel +{ +public: + /** Default constructor */ + CpuScaleKernel(); + ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuScaleKernel); + /** Initialise the kernel's inputs, output and interpolation policy + * + * @note dx, dy and offsets have the same dimensions (width and height) of the output tensor + * @note Using @p policy Area only supports data layout NCHW and input data type U8. + * + * @param[in] src Source tensor info. Data types supported: QASYMM8/QASYMM8_SIGNED/U8/S16/F16/F32. + * @param[in] dx Distance x tensor info. Pixel's distance between the X real coordinate and the smallest X following integer. Data type supported: F32 + * @param[in] dy Distance y tensor info. Pixel's distance between the Y real coordinate and the smallest Y following integer. Data type supported: F32 + * @param[in] offsets Offset tensor info. Offset to access the pixel with NEAREST interpolation or the top-left pixel with BILINEAR interpolation in the input tensor. Data type supported: S32. + * @param[out] dst Destination tensor info. Data types supported: Same as @p input. All but the lowest two dimensions must be the same size as in the input tensor, i.e. scaling is only performed within the XY-plane. + * @param[in] info @ref ScaleKernelInfo to use for configuration + */ + void configure(const ITensorInfo *src, const ITensorInfo *dx, const ITensorInfo *dy, const ITensorInfo *offsets, ITensorInfo *dst, + const ScaleKernelInfo &info); + /** Static function to check if given info will lead to a valid configuration of @ref CpuScaleKernel + * + * @note dx, dy and offsets have the same dimensions (width and height) of the output tensor + * @note Using @p policy Area only supports data layout NCHW and input data type U8. + * + * @param[in] src Source tensor. Data types supported: QASYMM8/QASYMM8_SIGNED/U8/S16/F16/F32. + * @param[in] dx Distance x tensor info. Pixel's distance between the X real coordinate and the smallest X following integer. Data type supported: F32 + * @param[in] dy Distance y tensor info. Pixel's distance between the Y real coordinate and the smallest Y following integer. Data type supported: F32 + * @param[in] offsets Offset tensor info. Offset to access the pixel with NEAREST interpolation or the top-left pixel with BILINEAR interpolation in the input tensor. Data type supported: S32. + * @param[in] dst Destination tensor info. Data types supported: Same as @p input. All but the lowest two dimensions must be the same size as in the input tensor, i.e. scaling is only performed within the XY-plane. + * @param[in] info @ref ScaleKernelInfo to use for validation + */ + static Status validate(const ITensorInfo *src, const ITensorInfo *dx, const ITensorInfo *dy, const ITensorInfo *offsets, ITensorInfo *dst, + const ScaleKernelInfo &info); + + // Inherited methods overridden: + void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; + const char *name() const override; + +private: +#ifdef ENABLE_NCHW_KERNELS + /** function to perform scale using area interpolation on the given window + * + * @note Used only in case down-sampling. + */ + void scale_area_nchw_u8(const ITensor *src, ITensor *dst, const ITensor *dx, const ITensor *dy, const ITensor *offsets, const Window &window); + + /** function to perform scale using bilinear interpolation on the given window */ + template <typename T> + void scale_bilinear_nchw(const ITensor *src, ITensor *dst, const ITensor *dx, const ITensor *dy, const ITensor *offsets, const Window &window); + /** function to perform scale using bilinear interpolation on the given window */ + template <typename T> + void scale_bilinear_qasymm(const ITensor *src, ITensor *dst, const ITensor *dx, const ITensor *dy, const ITensor *offsets, const Window &window); + + /** function to perform scale using nearest neighbour on the given window */ + template <typename T> + void scale_nearest_nchw(const ITensor *src, ITensor *dst, const ITensor *dx, const ITensor *dy, const ITensor *offsets, const Window &window); +#endif // ENABLE_NCHW_KERNELS + + /** Scale function to use for the particular function to use */ + using ScaleFunctionPtr = void (CpuScaleKernel::*)(const ITensor *, ITensor *, const ITensor *, const ITensor *, const ITensor *, const Window &window); + + ScaleFunctionPtr _func; + InterpolationPolicy _policy; + BorderMode _border_mode; + PixelValue _constant_border_value; + float _sampling_offset; + bool _align_corners; + DataLayout _data_layout; +}; +} // namespace kernels +} // namespace cpu +} // namespace arm_compute +#endif /*ARM_COMPUTE_CPU_SCALEKERNEL_H */ |