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/*
* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
/*
* This file contains the implementation of functions
* WebRtcSpl_MemSetW16()
* WebRtcSpl_MemSetW32()
* WebRtcSpl_MemCpyReversedOrder()
* WebRtcSpl_CopyFromEndW16()
* WebRtcSpl_ZerosArrayW16()
* WebRtcSpl_ZerosArrayW32()
* WebRtcSpl_OnesArrayW16()
* WebRtcSpl_OnesArrayW32()
*
* The description header can be found in signal_processing_library.h
*
*/
#include <string.h>
#include "signal_processing_library.h"
void WebRtcSpl_MemSetW16(WebRtc_Word16 *ptr, WebRtc_Word16 set_value, int length)
{
int j;
WebRtc_Word16 *arrptr = ptr;
for (j = length; j > 0; j--)
{
*arrptr++ = set_value;
}
}
void WebRtcSpl_MemSetW32(WebRtc_Word32 *ptr, WebRtc_Word32 set_value, int length)
{
int j;
WebRtc_Word32 *arrptr = ptr;
for (j = length; j > 0; j--)
{
*arrptr++ = set_value;
}
}
void WebRtcSpl_MemCpyReversedOrder(WebRtc_Word16* dest, WebRtc_Word16* source, int length)
{
int j;
WebRtc_Word16* destPtr = dest;
WebRtc_Word16* sourcePtr = source;
for (j = 0; j < length; j++)
{
*destPtr-- = *sourcePtr++;
}
}
WebRtc_Word16 WebRtcSpl_CopyFromEndW16(G_CONST WebRtc_Word16 *vector_in,
WebRtc_Word16 length,
WebRtc_Word16 samples,
WebRtc_Word16 *vector_out)
{
// Copy the last <samples> of the input vector to vector_out
WEBRTC_SPL_MEMCPY_W16(vector_out, &vector_in[length - samples], samples);
return samples;
}
WebRtc_Word16 WebRtcSpl_ZerosArrayW16(WebRtc_Word16 *vector, WebRtc_Word16 length)
{
WebRtcSpl_MemSetW16(vector, 0, length);
return length;
}
WebRtc_Word16 WebRtcSpl_ZerosArrayW32(WebRtc_Word32 *vector, WebRtc_Word16 length)
{
WebRtcSpl_MemSetW32(vector, 0, length);
return length;
}
WebRtc_Word16 WebRtcSpl_OnesArrayW16(WebRtc_Word16 *vector, WebRtc_Word16 length)
{
WebRtc_Word16 i;
WebRtc_Word16 *tmpvec = vector;
for (i = 0; i < length; i++)
{
*tmpvec++ = 1;
}
return length;
}
WebRtc_Word16 WebRtcSpl_OnesArrayW32(WebRtc_Word32 *vector, WebRtc_Word16 length)
{
WebRtc_Word16 i;
WebRtc_Word32 *tmpvec = vector;
for (i = 0; i < length; i++)
{
*tmpvec++ = 1;
}
return length;
}
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