| 1 | //driver_esd.c: |
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| 2 | |
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| 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2010 |
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| 5 | * |
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| 6 | * This file is part of roard a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * RoarAudio is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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| 23 | * |
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| 24 | */ |
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| 25 | |
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| 26 | #include "roard.h" |
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| 27 | #ifdef ROAR_HAVE_ESD |
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| 28 | |
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| 29 | /* |
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| 30 | We could use inst as our fh directly. But esd works with unsigned at 8 bits and |
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| 31 | signed at 16 bits per sample. (why???) so we need to convert because we get signed at both, |
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| 32 | 8 and 16 bits per sample. so we use inst as an array of two ints: 0: fh, 1: are we in 8 bit mode? |
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| 33 | */ |
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| 34 | |
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| 35 | int driver_esd_open_vio(struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh, struct roar_stream_server * sstream) { |
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| 36 | esd_format_t format = ESD_STREAM | ESD_PLAY; |
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| 37 | char name[80] = "roard"; |
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| 38 | |
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| 39 | if ( fh != -1 ) |
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| 40 | return -1; |
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| 41 | |
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| 42 | if ( info->bits >= 16 ) { |
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| 43 | info->bits = 16; |
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| 44 | format |= ESD_BITS16; |
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| 45 | info->codec = ROAR_CODEC_PCM_S; |
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| 46 | } else if ( info->bits < 16 ) { |
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| 47 | info->bits = 8; |
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| 48 | format |= ESD_BITS8; |
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| 49 | info->codec = ROAR_CODEC_PCM_U; |
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| 50 | } |
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| 51 | |
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| 52 | if ( info->channels >= 2 ) { |
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| 53 | info->channels = 2; |
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| 54 | format |= ESD_STEREO; |
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| 55 | } else { |
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| 56 | info->channels = 1; |
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| 57 | format |= ESD_MONO; |
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| 58 | } |
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| 59 | |
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| 60 | fh = esd_play_stream_fallback(format, info->rate, device, name); |
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| 61 | |
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| 62 | shutdown(fh, SHUT_RD); |
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| 63 | |
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| 64 | roar_vio_set_fh(inst, fh); |
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| 65 | |
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| 66 | return 0; |
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| 67 | } |
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| 68 | |
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| 69 | |
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| 70 | #endif |
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| 71 | //ll |
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