[0] | 1 | //driver_esd.c: |
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| 2 | |
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[668] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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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, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | */ |
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| 24 | |
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[0] | 25 | #include "roard.h" |
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[424] | 26 | #ifdef ROAR_HAVE_ESD |
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[0] | 27 | |
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| 28 | /* |
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| 29 | We could use inst as our fh directly. But esd works with unsigned at 8 bits and |
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| 30 | signed at 16 bits per sample. (why???) so we need to convert because we get signed at both, |
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| 31 | 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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| 32 | */ |
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| 33 | |
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[912] | 34 | int driver_esd_open_sysio(DRIVER_USERDATA_T * inst, char * device, struct roar_audio_info * info) { |
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[0] | 35 | esd_format_t format = ESD_STREAM | ESD_PLAY; |
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| 36 | char name[80] = "roard"; |
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| 37 | int * di = malloc(sizeof(int)*2); |
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| 38 | |
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| 39 | if ( di == NULL ) |
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| 40 | return -1; |
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| 41 | |
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| 42 | *inst = (DRIVER_USERDATA_T)di; |
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| 43 | |
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| 44 | format |= info->bits == 16 ? ESD_BITS16 : ESD_BITS8; |
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| 45 | format |= info->channels == 2 ? ESD_STEREO : ESD_MONO; |
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| 46 | |
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| 47 | di[1] = info->bits == 8; |
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| 48 | |
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| 49 | di[0] = esd_play_stream_fallback(format, info->rate, device, name); |
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| 50 | |
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[504] | 51 | shutdown(di[0], SHUT_RD); |
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| 52 | |
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[0] | 53 | if ( di[0] == -1 ) { |
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| 54 | free(di); |
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| 55 | *inst = NULL; |
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| 56 | return -1; |
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| 57 | } |
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| 58 | |
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| 59 | return 0; |
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| 60 | } |
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| 61 | |
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[2367] | 62 | 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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[930] | 63 | |
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| 64 | if ( fh != -1 ) |
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| 65 | return -1; |
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| 66 | |
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[1120] | 67 | inst->read = driver_esd_read; |
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| 68 | inst->write = driver_esd_write; |
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| 69 | inst->nonblock = driver_esd_nonblock; |
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| 70 | inst->sync = driver_esd_sync; |
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| 71 | |
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[912] | 72 | return driver_esd_open_sysio(&(inst->inst), device, info); |
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| 73 | } |
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| 74 | |
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[0] | 75 | int driver_esd_close(DRIVER_USERDATA_T inst) { |
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[912] | 76 | int fh; |
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| 77 | |
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| 78 | inst = ((struct roar_vio_calls *)inst)->inst; |
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| 79 | |
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| 80 | fh = *(int*)inst; |
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[0] | 81 | |
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| 82 | free((void*)inst); |
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| 83 | |
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| 84 | return esd_close(fh); |
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| 85 | } |
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| 86 | |
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[1656] | 87 | ssize_t driver_esd_write(struct roar_vio_calls * inst, void * buf, size_t len) { |
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[912] | 88 | int * di = (int*)((struct roar_vio_calls *)inst)->inst; |
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[0] | 89 | |
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| 90 | if ( di[1] ) |
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| 91 | roar_conv_codec_s2u8(buf, buf, len); |
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| 92 | |
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| 93 | return write(di[0], buf, len); |
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| 94 | } |
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| 95 | |
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[1656] | 96 | ssize_t driver_esd_read(struct roar_vio_calls * inst, void * buf, size_t len) { |
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[912] | 97 | return read(*(int*)((struct roar_vio_calls *)inst)->inst, buf, len); |
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[0] | 98 | } |
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| 99 | |
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[1120] | 100 | int driver_esd_nonblock(struct roar_vio_calls * vio, int state) { |
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| 101 | return roar_socket_nonblock(*(int*)vio->inst, state); |
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| 102 | } |
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| 103 | |
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| 104 | int driver_esd_sync (struct roar_vio_calls * vio) { |
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[1171] | 105 | return ROAR_FDATASYNC(*(int*)vio->inst); |
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[1120] | 106 | } |
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[424] | 107 | |
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| 108 | #endif |
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[0] | 109 | //ll |
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