1 /* Copyright 2018 The TensorFlow Authors. All Rights Reserved. 2 3 Licensed under the Apache License, Version 2.0 (the "License"); 4 you may not use this file except in compliance with the License. 5 You may obtain a copy of the License at 6 7 http://www.apache.org/licenses/LICENSE-2.0 8 9 Unless required by applicable law or agreed to in writing, software 10 distributed under the License is distributed on an "AS IS" BASIS, 11 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 See the License for the specific language governing permissions and 13 limitations under the License. 14 ==============================================================================*/ 15 #ifndef TENSORFLOW_LITE_EXPERIMENTAL_MICROFRONTEND_LIB_LOG_LUT_H_ 16 #define TENSORFLOW_LITE_EXPERIMENTAL_MICROFRONTEND_LIB_LOG_LUT_H_ 17 18 #include <stdint.h> 19 20 #ifdef __cplusplus 21 extern "C" { 22 #endif 23 24 // Number of segments in the log lookup table. The table will be kLogSegments+1 25 // in length (with some padding). 26 #define kLogSegments 128 27 #define kLogSegmentsLog2 7 28 29 // Scale used by lookup table. 30 #define kLogScale 65536 31 #define kLogScaleLog2 16 32 #define kLogCoeff 45426 33 34 extern const uint16_t kLogLut[]; 35 36 #ifdef __cplusplus 37 } // extern "C" 38 #endif 39 40 #endif // TENSORFLOW_LITE_EXPERIMENTAL_MICROFRONTEND_LIB_LOG_LUT_H_ 41