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__*/