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 "VectorArithmetic.h" 23 24 /********************************************************************************** 25 FUNCTION ADD2_SAT_16X16 26 ***********************************************************************************/ 27 28 void Add2_Sat_16x16( const LVM_INT16 *src, 29 LVM_INT16 *dst, 30 LVM_INT16 n ) 31 { 32 LVM_INT32 Temp; 33 LVM_INT16 ii; 34 for (ii = n; ii != 0; ii--) 35 { 36 Temp = ((LVM_INT32) *src) + ((LVM_INT32) *dst); 37 src++; 38 39 if (Temp > 0x00007FFF) 40 { 41 *dst = 0x7FFF; 42 } 43 else if (Temp < -0x00008000) 44 { 45 *dst = - 0x8000; 46 } 47 else 48 { 49 *dst = (LVM_INT16)Temp; 50 } 51 dst++; 52 } 53 return; 54 } 55 56 /**********************************************************************************/ 57
