| 1 | //para.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2009 |
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| 5 | * The code (may) include prototypes and comments (and maybe |
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| 6 | * other code fragements) from EsounD. |
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| 7 | * They are mostly copyrighted by Eric B. Mitchell (aka 'Ricdude) |
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| 8 | * <ericmit@ix.netcom.com>. For more information see AUTHORS.esd. |
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| 9 | * |
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| 10 | * This file is part of libroaresd a part of RoarAudio, |
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| 11 | * a cross-platform sound system for both, home and professional use. |
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| 12 | * See README for details. |
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| 13 | * |
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| 14 | * This file is free software; you can redistribute it and/or modify |
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| 15 | * it under the terms of the GNU General Public License version 3 |
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| 16 | * as published by the Free Software Foundation. |
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| 17 | * |
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| 18 | * RoarAudio is distributed in the hope that it will be useful, |
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| 19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 21 | * GNU General Public License for more details. |
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| 22 | * |
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| 23 | * You should have received a copy of the GNU General Public License |
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| 24 | * along with this software; see the file COPYING. If not, write to |
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| 25 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 26 | * |
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| 27 | * NOTE for everyone want's to change something and send patches: |
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| 28 | * read README and HACKING! There a addition information on |
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| 29 | * the license of this document you need to read before you send |
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| 30 | * any patches. |
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| 31 | */ |
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| 32 | |
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| 33 | #include "libroarsndio.h" |
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| 34 | |
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| 35 | void sio_initpar(struct sio_par * par) { |
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| 36 | if ( par == NULL ) |
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| 37 | return; |
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| 38 | |
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| 39 | memset(par, 0, sizeof(struct sio_par)); |
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| 40 | |
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| 41 | par->bits = ROAR_BITS_DEFAULT; |
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| 42 | par->sig = 1; |
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| 43 | par->le = SIO_LE_NATIVE; |
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| 44 | par->msb = 1; |
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| 45 | par->rchan = 0; |
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| 46 | par->pchan = ROAR_CHANNELS_DEFAULT; |
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| 47 | par->rate = ROAR_RATE_DEFAULT; |
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| 48 | par->bufsz = ROAR_BITS_DEFAULT * ROAR_CHANNELS_DEFAULT * ROAR_RATE_DEFAULT / 800.0; |
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| 49 | par->round = 1; |
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| 50 | par->xrun = SIO_IGNORE; |
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| 51 | |
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| 52 | return; |
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| 53 | } |
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| 54 | |
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| 55 | int sio_setpar (struct sio_hdl * hdl, struct sio_par * par) { |
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| 56 | if ( hdl == NULL ) |
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| 57 | return 0; |
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| 58 | |
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| 59 | if ( par->bits == 0 || par->bits > ROAR_BITS_MAX ) |
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| 60 | return 0; |
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| 61 | |
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| 62 | if ( par->bps == 0 ) |
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| 63 | par->bps = SIO_BPS(par->bits); |
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| 64 | |
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| 65 | if ( par->bps > ROAR_BITS_MAX/8 ) |
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| 66 | return 0; |
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| 67 | |
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| 68 | if ( SIO_BPS(par->bits) > par->bps ) |
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| 69 | return 0; |
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| 70 | |
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| 71 | hdl->info.bits = par->bps * 8; |
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| 72 | |
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| 73 | switch ((par->sig << 4) | par->le) { |
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| 74 | case 0x00: |
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| 75 | hdl->info.codec = ROAR_CODEC_PCM_U_BE; |
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| 76 | break; |
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| 77 | case 0x01: |
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| 78 | hdl->info.codec = ROAR_CODEC_PCM_U_LE; |
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| 79 | break; |
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| 80 | case 0x10: |
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| 81 | hdl->info.codec = ROAR_CODEC_PCM_S_BE; |
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| 82 | break; |
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| 83 | case 0x11: |
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| 84 | hdl->info.codec = ROAR_CODEC_PCM_S_LE; |
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| 85 | break; |
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| 86 | default: |
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| 87 | return 0; |
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| 88 | } |
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| 89 | |
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| 90 | if ( par->msb == 0 ) |
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| 91 | return 0; |
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| 92 | |
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| 93 | if ( par->rchan != 0 ) /* not supported yet */ |
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| 94 | return 0; |
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| 95 | |
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| 96 | if ( par->pchan == 0 || par->pchan > ROAR_MAX_CHANNELS ) |
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| 97 | return 0; |
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| 98 | |
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| 99 | hdl->info.channels = par->pchan; |
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| 100 | |
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| 101 | if ( par->rate == 0 ) |
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| 102 | return 0; |
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| 103 | |
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| 104 | hdl->info.rate = par->rate; |
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| 105 | |
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| 106 | if ( par->xrun != SIO_IGNORE ) |
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| 107 | return 0; |
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| 108 | |
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| 109 | return 1; |
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| 110 | } |
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| 111 | |
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| 112 | int sio_getpar (struct sio_hdl * hdl, struct sio_par * par) { |
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| 113 | return 0; |
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| 114 | } |
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| 115 | |
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| 116 | int sio_getcap (struct sio_hdl * hdl, struct sio_cap * cap) { |
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| 117 | return 0; |
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| 118 | } |
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| 119 | |
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| 120 | |
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| 121 | //ll |
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