/* | |
** Copyright 2003-2010, VisualOn, Inc. | |
** | |
** 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. | |
*/ | |
/*********************************************************************** | |
* File: util.c * | |
* * | |
* Description: Reset and Copy buffer * | |
* * | |
************************************************************************/ | |
#include "typedef.h" | |
#include "basic_op.h" | |
/*********************************************************************** | |
* Function: Set_zero() * | |
* Description: Set vector x[] to zero * | |
************************************************************************/ | |
void Set_zero( | |
Word16 x[], /* (o) : vector to clear */ | |
Word16 L /* (i) : length of vector */ | |
) | |
{ | |
Word32 num = (Word32)L; | |
do{ | |
*x++ = 0; | |
}while(--num !=0); | |
} | |
/********************************************************************* | |
* Function: Copy() * | |
* * | |
* Description: Copy vector x[] to y[] * | |
*********************************************************************/ | |
void Copy( | |
Word16 x[], /* (i) : input vector */ | |
Word16 y[], /* (o) : output vector */ | |
Word16 L /* (i) : vector length */ | |
) | |
{ | |
Word32 temp1,temp2,num; | |
if(L&1) | |
{ | |
temp1 = *x++; | |
*y++ = temp1; | |
} | |
num = (Word32)(L>>1); | |
temp1 = *x++; | |
temp2 = *x++; | |
do{ | |
*y++ = temp1; | |
*y++ = temp2; | |
temp1 = *x++; | |
temp2 = *x++; | |
}while(--num!=0); | |
} | |