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 /*######################################################################################*/ 19 /* Include files */ 20 /*######################################################################################*/ 21 22 #include "ScalarArithmetic.h" 23 24 /**************************************************************************************** 25 * Name : Abs_32() 26 * Input : Signed 32-bit integer 27 * Output : 28 * Returns : Absolute value 29 * Description : Absolute value with maximum negative value corner case 30 * Remarks : 31 ****************************************************************************************/ 32 33 LVM_INT32 Abs_32(LVM_INT32 input) 34 { 35 if(input < 0) 36 { 37 if (input == (LVM_INT32)(0x80000000U)) 38 { 39 /* The corner case, so set to the maximum positive value */ 40 input=(LVM_INT32) 0x7fffffff; 41 } 42 else 43 { 44 /* Negative input, so invert */ 45 input = (LVM_INT32)(-input); 46 } 47 } 48 return input; 49 } 50 #ifdef BUILD_FLOAT 51 LVM_FLOAT Abs_Float(LVM_FLOAT input) 52 { 53 if(input < 0) 54 { 55 /* Negative input, so invert */ 56 input = (LVM_FLOAT)(-input); 57 } 58 return input; 59 } 60 #endif 61
