1 /* 2 * Copyright (c) 2017-2022 Arm Limited. 3 * 4 * SPDX-License-Identifier: MIT 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in all 14 * copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 */ 24 #ifndef ARM_COMPUTE_CPU_QUANTIZE_KERNEL_H 25 #define ARM_COMPUTE_CPU_QUANTIZE_KERNEL_H 26 27 #include "src/core/common/Macros.h" 28 #include "src/cpu/ICpuKernel.h" 29 30 namespace arm_compute 31 { 32 namespace cpu 33 { 34 namespace kernels 35 { 36 /** Interface for the quantization layer kernel. 37 * 38 * @note The implementation supports only 3D input tensors 39 */ 40 class CpuQuantizeKernel : public ICpuKernel<CpuQuantizeKernel> 41 { 42 public: 43 CpuQuantizeKernel() = default; 44 ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuQuantizeKernel); 45 /** Set the input, output. 46 * 47 * @param[in] src Source tensor info. The dimensions over the third will be interpreted as batches. Data types supported: QASYMM8/QASYMM8_SIGNED/F32/F16. 48 * @param[out] dst Destination tensor info with the same dimensions of input. Data types supported: QASYMM8/QASYMM8_SIGNED/QASYMM16. 49 * 50 * @note Output auto initialization is not supported by this kernel 51 */ 52 void configure(const ITensorInfo *src, ITensorInfo *dst); 53 /** Static function to check if given info will lead to a valid configuration 54 * 55 * Similar to @ref CpuQuantizeKernel::configure() 56 * 57 * @return a status 58 */ 59 static Status validate(const ITensorInfo *src, const ITensorInfo *dst); 60 61 // Inherited methods overridden: 62 void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; 63 const char *name() const override; 64 65 private: 66 /** Common signature for all the specialised @ref CpuQuantizeKernel functions 67 * 68 * @param[in] window Region on which to execute the kernel. 69 */ 70 using QuantizeFunctionExecutorPtr = void (CpuQuantizeKernel::*)(const ITensor *src, ITensor *dst, const Window &window); 71 /** Function to apply QASYMM8 or QASYMM8_SIGNED quantization on a tensor. 72 * 73 * @param[in] window Region on which to execute the kernel. 74 */ 75 template <typename TIn, typename TOut> 76 void run_quantize_qasymm8(const ITensor *src, ITensor *dst, const Window &window); 77 /** Function to apply QASYMM16 quantization on a tensor. 78 * 79 * @param[in] window Region on which to execute the kernel. 80 */ 81 template <typename T> 82 void run_quantize_qasymm16(const ITensor *src, ITensor *dst, const Window &window); 83 84 template <typename TIn, typename TOut> 85 void run_quantize_qsymm8(const ITensor *src, ITensor *dst, const Window &window); 86 87 QuantizeFunctionExecutorPtr _func{ nullptr }; 88 }; 89 } // namespace kernels 90 } // namespace cpu 91 } // namespace arm_compute 92 #endif /* ARM_COMPUTE_CPU_QUANTIZE_KERNEL_H */ 93