| /* |
| * 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_v32xv32 |
| ***********************************************************************************/ |
| void Shift_Sat_Float (const LVM_INT16 val, |
| const LVM_FLOAT *src, |
| LVM_FLOAT *dst, |
| LVM_INT16 n) |
| { |
| LVM_FLOAT temp; |
| LVM_INT32 ii,ij; |
| LVM_INT16 RShift; |
| |
| if(val > 0) |
| { |
| for (ii = n; ii != 0; ii--) |
| { |
| temp = (LVM_FLOAT)*src; |
| src++; |
| for(ij = 0; ij < val; ij++) |
| { |
| temp = temp * 2; |
| } |
| |
| if(temp > 1.0) |
| temp = 1.0; |
| if(temp < -1.0) |
| temp = -1.0; |
| |
| *dst = (LVM_FLOAT)temp; |
| dst++; |
| } |
| } |
| else if(val < 0) |
| { |
| RShift=(LVM_INT16)(-val); |
| |
| for (ii = n; ii != 0; ii--) |
| { |
| temp = (LVM_FLOAT)*src; |
| src++; |
| for(ij = 0; ij < RShift; ij++) |
| { |
| temp = temp / 2; |
| } |
| *dst = (LVM_FLOAT)temp; |
| dst++; |
| } |
| } |
| else |
| { |
| if(src != dst) |
| { |
| Copy_Float(src, dst, n); |
| } |
| } |
| return; |
| } |
| /**********************************************************************************/ |