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 INT32RSHIFTTOINT16_SAT_32X16 26 ***********************************************************************************/ 27 28 void Int32RShiftToInt16_Sat_32x16(const LVM_INT32 *src, 29 LVM_INT16 *dst, 30 LVM_INT16 n, 31 LVM_INT16 shift ) 32 { 33 LVM_INT32 temp; 34 LVM_INT16 ii; 35 36 for (ii = n; ii != 0; ii--) 37 { 38 temp = *src >> shift; 39 src++; 40 41 if (temp > 0x00007FFF) 42 { 43 *dst = 0x7FFF; 44 } 45 else if (temp < -0x00008000) 46 { 47 *dst = - 0x8000; 48 } 49 else 50 { 51 *dst = (LVM_INT16)temp; 52 } 53 54 dst++; 55 } 56 57 return; 58 } 59 60 /**********************************************************************************/ 61
