1 /* 2 * Copyright (c) 2016-2023 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_CAST_KERNEL_H 25 #define ARM_COMPUTE_CPU_CAST_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 /** Casts a given tensor to a new type 37 * 38 * @note When casting between quantized types the scale and zeroPoint are ignored 39 */ 40 class CpuCastKernel : public ICpuKernel<CpuCastKernel> 41 { 42 private: 43 using CastKernelPtr = std::add_pointer<void(const ITensor *, ITensor *, const ThreadInfo &, ConvertPolicy, const Window &)>::type; 44 45 public: 46 CpuCastKernel() = default; 47 ARM_COMPUTE_DISALLOW_COPY_ALLOW_MOVE(CpuCastKernel); 48 /** Set the src and dst of the kernel 49 * 50 * Valid conversions src -> dst : 51 * 52 * - QASYMM8_SIGNED -> S16, S32, F32, F16 53 * - QASYMM8 -> U16, S16, S32, F32, F16 54 * - U8 -> U16, S16, S32, F32, F16 55 * - U16 -> U8, U32 56 * - S16 -> QASYMM8_SIGNED, U8, S32 57 * - BFLOAT16 -> F32 58 * - F16 -> QASYMM8_SIGNED, QASYMM8, F32, S32, U8 59 * - S32 -> QASYMM8_SIGNED, QASYMM8, F16, F32, U8 60 * - F32 -> QASYMM8_SIGNED, QASYMM8, BFLOAT16, F16, S32, U8 61 * 62 * @param[in] src The src tensor to convert. Data types supported: QASYMM8_SIGNED/QASYMM8/U8/U16/S16/BFLOAT16/F16/F32. 63 * @param[out] dst The dst tensor. Data types supported: QASYMM8_SIGNED/QASYMM8/U8/U16/S16/U32/S32/BFLOAT16/F16/F32. 64 * @param[in] policy Conversion policy. 65 * 66 * @deprecated Support for BFLOAT16 will be removed in 23.05 release 67 */ 68 void configure(const ITensorInfo *src, ITensorInfo *dst, ConvertPolicy policy); 69 /** Static function to check if given info will lead to a valid configuration 70 * 71 * Similar to @ref CpuCastKernel::configure() 72 * 73 * @return a status 74 */ 75 static Status validate(const ITensorInfo *src, const ITensorInfo *dst, ConvertPolicy policy); 76 77 // Inherited methods overridden: 78 void run_op(ITensorPack &tensors, const Window &window, const ThreadInfo &info) override; 79 const char *name() const override; 80 81 struct CastKernel 82 { 83 const char *name; 84 const CastDataTypeISASelectorDataPtr is_selected; 85 CastKernelPtr ukernel; 86 }; 87 88 static const std::vector<CastKernel> &get_available_kernels(); 89 90 private: 91 ConvertPolicy _policy{ ConvertPolicy::SATURATE }; 92 }; 93 } // namespace kernels 94 } // namespace cpu 95 } // namespace arm_compute 96 #endif /* ARM_COMPUTE_CPU_CAST_KERNEL_H */ 97