diff options
Diffstat (limited to 'third_party/libwebrtc/common_audio/signal_processing/copy_set_operations.c')
-rw-r--r-- | third_party/libwebrtc/common_audio/signal_processing/copy_set_operations.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/third_party/libwebrtc/common_audio/signal_processing/copy_set_operations.c b/third_party/libwebrtc/common_audio/signal_processing/copy_set_operations.c new file mode 100644 index 0000000000..ae709d40f0 --- /dev/null +++ b/third_party/libwebrtc/common_audio/signal_processing/copy_set_operations.c @@ -0,0 +1,82 @@ +/* + * 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() + * + * The description header can be found in signal_processing_library.h + * + */ + +#include <string.h> +#include "common_audio/signal_processing/include/signal_processing_library.h" + + +void WebRtcSpl_MemSetW16(int16_t *ptr, int16_t set_value, size_t length) +{ + size_t j; + int16_t *arrptr = ptr; + + for (j = length; j > 0; j--) + { + *arrptr++ = set_value; + } +} + +void WebRtcSpl_MemSetW32(int32_t *ptr, int32_t set_value, size_t length) +{ + size_t j; + int32_t *arrptr = ptr; + + for (j = length; j > 0; j--) + { + *arrptr++ = set_value; + } +} + +void WebRtcSpl_MemCpyReversedOrder(int16_t* dest, + int16_t* source, + size_t length) +{ + size_t j; + int16_t* destPtr = dest; + int16_t* sourcePtr = source; + + for (j = 0; j < length; j++) + { + *destPtr-- = *sourcePtr++; + } +} + +void WebRtcSpl_CopyFromEndW16(const int16_t *vector_in, + size_t length, + size_t samples, + int16_t *vector_out) +{ + // Copy the last <samples> of the input vector to vector_out + WEBRTC_SPL_MEMCPY_W16(vector_out, &vector_in[length - samples], samples); +} + +void WebRtcSpl_ZerosArrayW16(int16_t *vector, size_t length) +{ + WebRtcSpl_MemSetW16(vector, 0, length); +} + +void WebRtcSpl_ZerosArrayW32(int32_t *vector, size_t length) +{ + WebRtcSpl_MemSetW32(vector, 0, length); +} |