1 /* 2 * Copyright (C) 2004-2010 NXP Software 3 * Copyright (C) 2010 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 #ifndef __SCALARARITHMETIC_H__ 19 #define __SCALARARITHMETIC_H__ 20 21 /*######################################################################################*/ 22 /* Include files */ 23 /*######################################################################################*/ 24 25 #include "LVM_Types.h" 26 27 /*######################################################################################*/ 28 /* Extern function prototypes */ 29 /*######################################################################################*/ 30 31 /* Absolute value including the corner case for the extreme negative value */ 32 33 LVM_FLOAT Abs_Float(LVM_FLOAT input); 34 35 /**************************************************************************************** 36 * Name : dB_to_Lin32() 37 * Input : Signed 16-bit integer 38 * MSB (16) = sign bit 39 * (15->05) = integer part 40 * (04->01) = decimal part 41 * Output : Signed 32-bit integer 42 * MSB (32) = sign bit 43 * (31->16) = integer part 44 * (15->01) = decimal part 45 * Returns : Lin value format 1.16.15 46 ****************************************************************************************/ 47 LVM_FLOAT dB_to_LinFloat(LVM_INT16 db_fix); 48 49 #endif /* __SCALARARITHMETIC_H__ */ 50 51