diff options
Diffstat (limited to 'src/common_audio/signal_processing_library/main/source/norm_w32.c')
-rw-r--r-- | src/common_audio/signal_processing_library/main/source/norm_w32.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/src/common_audio/signal_processing_library/main/source/norm_w32.c b/src/common_audio/signal_processing_library/main/source/norm_w32.c deleted file mode 100644 index d45633501a..0000000000 --- a/src/common_audio/signal_processing_library/main/source/norm_w32.c +++ /dev/null @@ -1,45 +0,0 @@ -/* - * 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 function WebRtcSpl_NormW32(). - * The description header can be found in signal_processing_library.h - * - */ - -#include "signal_processing_library.h" - -#ifndef SPL_NO_DOUBLE_IMPLEMENTATIONS - -int WebRtcSpl_NormW32(WebRtc_Word32 value) -{ - int zeros = 0; - - if (value <= 0) - value ^= 0xFFFFFFFF; - - // Fast binary search to determine the number of left shifts required to 32-bit normalize - // the value - if (!(0xFFFF8000 & value)) - zeros = 16; - if (!(0xFF800000 & (value << zeros))) - zeros += 8; - if (!(0xF8000000 & (value << zeros))) - zeros += 4; - if (!(0xE0000000 & (value << zeros))) - zeros += 2; - if (!(0xC0000000 & (value << zeros))) - zeros += 1; - - return zeros; -} - -#endif |