src/apps/cortex/addons/audioOps/audio_op_tools.h

   1 /*
   2  * Copyright (c) 1999-2000, Eric Moon.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions, and the following disclaimer.
  11  *
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions, and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * 3. The name of the author may not be used to endorse or promote products
  17  *    derived from this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
  20  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  21  * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  23  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  24  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
  27  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31
  32 // audio_op_tools.h
  33 // * PURPOSE
  34 //   General-purpose audio processing functions.
  35 // * HISTORY
  36 //   e.moon             26aug99         Begun
  37
  38 #ifndef __audio_op_tools_H__
  39 #define __audio_op_tools_H__
  40
  41 #include "AudioBuffer.h"
  42 #include <ByteOrder.h>
  43
  44 // the tools
  45
  46 inline void byteswap_buffer_subset(
  47         AudioBuffer&                            buffer,
  48         type_code                                               type,
  49         uint32                                                  fromFrame,
  50         uint32                                                  count); //nyi
  51
  52 inline void byteswap_sample(int8& sample) {}
  53 inline void byteswap_sample(int16& sample) {
  54         sample = B_SWAP_INT16(sample);
  55 }
  56 inline void byteswap_sample(int32& sample) {
  57         sample = B_SWAP_INT32(sample);
  58 }
  59 inline void byteswap_sample(float& sample) {
  60         sample = B_SWAP_FLOAT(sample);
  61 }
  62
  63 inline double fast_floor(double val) {
  64         return (double)(int64)val;
  65 }
  66 inline double fast_ceil(double val) {
  67         return fast_floor(val+1.0);
  68 }
  69
  70 #endif /*__audio_op_tools_H__*/