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 46inline void byteswap_buffer_subset( 47 AudioBuffer& buffer, 48 type_code type, 49 uint32 fromFrame, 50 uint32 count); //nyi 51 52inline void byteswap_sample(int8& sample) {} 53inline void byteswap_sample(int16& sample) { 54 sample = B_SWAP_INT16(sample); 55} 56inline void byteswap_sample(int32& sample) { 57 sample = B_SWAP_INT32(sample); 58} 59inline void byteswap_sample(float& sample) { 60 sample = B_SWAP_FLOAT(sample); 61} 62 63inline double fast_floor(double val) { 64 return (double)(int64)val; 65} 66inline double fast_ceil(double val) { 67 return fast_floor(val+1.0); 68} 69 70#endif /*__audio_op_tools_H__*/