| /* |
| * Copyright (C) 2004-2010 NXP Software |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /********************************************************************************** |
| INCLUDE FILES |
| ***********************************************************************************/ |
| |
| #include "VectorArithmetic.h" |
| |
| /********************************************************************************** |
| FUNCTION Shift_Sat_v16xv16 |
| ***********************************************************************************/ |
| |
| void Shift_Sat_v16xv16 (const LVM_INT16 val, |
| const LVM_INT16 *src, |
| LVM_INT16 *dst, |
| LVM_INT16 n) |
| { |
| LVM_INT32 temp; |
| LVM_INT32 ii; |
| LVM_INT16 RShift; |
| if(val>0) |
| { |
| for (ii = n; ii != 0; ii--) |
| { |
| temp = (LVM_INT32)*src; |
| src++; |
| |
| temp = temp << val; |
| |
| if (temp > 0x00007FFF) |
| { |
| *dst = 0x7FFF; |
| } |
| else if (temp < -0x00008000) |
| { |
| *dst = - 0x8000; |
| } |
| else |
| { |
| *dst = (LVM_INT16)temp; |
| } |
| dst++; |
| } |
| } |
| else if(val<0) |
| { |
| RShift=(LVM_INT16)(-val); |
| |
| for (ii = n; ii != 0; ii--) |
| { |
| *dst = (LVM_INT16)(*src >> RShift); |
| dst++; |
| src++; |
| } |
| } |
| else |
| { |
| if(src!=dst) |
| { |
| Copy_16(src,dst,n); |
| } |
| } |
| return; |
| } |
| |
| /**********************************************************************************/ |
