diff options
Diffstat (limited to 'media/libeffects/lvm/lib/Common/src/Mac3s_Sat_16x16.c')
-rwxr-xr-x | media/libeffects/lvm/lib/Common/src/Mac3s_Sat_16x16.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Common/src/Mac3s_Sat_16x16.c b/media/libeffects/lvm/lib/Common/src/Mac3s_Sat_16x16.c new file mode 100755 index 0000000..ef04ae8 --- /dev/null +++ b/media/libeffects/lvm/lib/Common/src/Mac3s_Sat_16x16.c @@ -0,0 +1,81 @@ +/* + * 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. + */ + +/********************************************************************************** + + %created_by: sra % (CM/S) + %name: Mac3s_Sat_16x16.c % (CM/S) + %version: 1 % (CM/S) + %date_created: Fri Nov 13 12:07:13 2009 % (CM/S) + +***********************************************************************************/ + +/********************************************************************************** + INCLUDE FILES +***********************************************************************************/ + +#include "VectorArithmetic.h" +#include "LVM_Macros.h" + +/********************************************************************************** + FUNCTION Mac3S_16X16 +***********************************************************************************/ + +void Mac3s_Sat_16x16( const LVM_INT16 *src, + const LVM_INT16 val, + LVM_INT16 *dst, + LVM_INT16 n) +{ + LVM_INT16 ii; + LVM_INT16 srcval; + LVM_INT32 Temp,dInVal; + + + for (ii = n; ii != 0; ii--) + { + srcval=*src; + src++; + + Temp = (srcval *val)>>15; + + dInVal = (LVM_INT32)*dst; + + Temp = Temp + dInVal; + + if (Temp > 0x00007FFF) + { + *dst = 0x7FFF; + } + else if (Temp < -0x00008000) + { + *dst = - 0x8000; + } + else + { + *dst = (LVM_INT16)Temp; + } + + dst++; + } + + return; +} + +/**********************************************************************************/ + + + |