1 /* $OpenBSD: auconv.h,v 1.6 2002/05/06 02:34:57 nate Exp $ */ 2 /* $NetBSD: auconv.h,v 1.5 1999/11/01 18:12:19 augustss Exp $ */ 3 4 /*- 5 * Copyright (c) 1997 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* Convert between signed and unsigned. */ 41 extern void change_sign8(void *, u_char *, int); 42 extern void change_sign16_le(void *, u_char *, int); 43 extern void change_sign16_be(void *, u_char *, int); 44 /* Convert between little and big endian. */ 45 extern void swap_bytes(void *, u_char *, int); 46 extern void swap_bytes_change_sign16_le(void *, u_char *, int); 47 extern void swap_bytes_change_sign16_be(void *, u_char *, int); 48 extern void change_sign16_swap_bytes_le(void *, u_char *, int); 49 extern void change_sign16_swap_bytes_be(void *, u_char *, int); 50 /* Byte expansion/contraction */ 51 extern void linear8_to_linear16_le(void *, u_char *, int); 52 extern void linear8_to_linear16_be(void *, u_char *, int); 53 extern void linear16_to_linear8_le(void *, u_char *, int); 54 extern void linear16_to_linear8_be(void *, u_char *, int); 55 /* Byte expansion/contraction with sign change */ 56 extern void ulinear8_to_linear16_le(void *, u_char *, int); 57 extern void ulinear8_to_linear16_be(void *, u_char *, int); 58 extern void linear16_to_ulinear8_le(void *, u_char *, int); 59 extern void linear16_to_ulinear8_be(void *, u_char *, int); 60 61 /* same as above, plus converting mono to stereo */ 62 extern void noswap_bytes_mts(void *, u_char *, int); 63 extern void swap_bytes_mts(void *, u_char *, int); 64 extern void linear8_to_linear16_le_mts(void *, u_char *, int); 65 extern void linear8_to_linear16_be_mts(void *, u_char *, int); 66 extern void ulinear8_to_linear16_le_mts(void *, u_char *, int); 67 extern void ulinear8_to_linear16_be_mts(void *, u_char *, int); 68 extern void change_sign16_le_mts(void *, u_char *, int); 69 extern void change_sign16_be_mts(void *, u_char *, int); 70 extern void change_sign16_swap_bytes_le_mts(void *, u_char *, int); 71 extern void change_sign16_swap_bytes_be_mts(void *, u_char *, int); 72 73 /* backwards compat for now */ 74 #if BYTE_ORDER == LITTLE_ENDIAN 75 #define change_sign16 change_sign16_le 76 #define change_sign16_swap_bytes swap_bytes_change_sign16_le 77 #define swap_bytes_change_sign16 swap_bytes_change_sign16_le 78 #define linear8_to_linear16 linear8_to_linear16_le 79 #define ulinear8_to_linear16 ulinear8_to_linear16_le 80 #define linear8_to_linear16_mts linear8_to_linear16_le_mts 81 #define ulinear8_to_linear16_mts ulinear8_to_linear16_le_mts 82 #define change_sign16_mts change_sign16_le_mts 83 #define change_sign16_swap_bytes_mts change_sign16_swap_bytes_le_mts 84 #else 85 #define change_sign16 change_sign16_be 86 #define change_sign16_swap_bytes swap_bytes_change_sign16_be 87 #define swap_bytes_change_sign16 swap_bytes_change_sign16_be 88 #define linear8_to_linear16 linear8_to_linear16_be 89 #define ulinear8_to_linear16 ulinear8_to_linear16_be 90 #define linear8_to_linear16_mts linear8_to_linear16_be_mts 91 #define ulinear8_to_linear16_mts ulinear8_to_linear16_be_mts 92 #define change_sign16_mts change_sign16_be_mts 93 #define change_sign16_swap_bytes_mts change_sign16_swap_bytes_be_mts 94 #endif 95