| 1 | //driver_wmm.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 | * |
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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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| 25 | #include "roard.h" |
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| 26 | |
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| 27 | #if defined(ROAR_HAVE_H_MMSYSTEM) && defined(ROAR_TARGET_WIN32) |
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| 28 | |
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| 29 | int driver_wmm_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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| 30 | struct driver_wmm * self; |
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| 31 | WAVEFORMATEX wavefmt; |
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| 32 | |
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| 33 | if ( (self = malloc(sizeof(struct driver_wmm))) == NULL ) |
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| 34 | return -1; |
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| 35 | |
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| 36 | memset(self, 0, sizeof(struct driver_wmm)); |
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| 37 | |
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| 38 | // VIO Setup: |
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| 39 | memset(inst, 0, sizeof(struct roar_vio_calls)); |
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| 40 | inst->inst = self; |
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| 41 | inst->close = driver_wmm_close_vio; |
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| 42 | inst->write = driver_wmm_write; |
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| 43 | |
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| 44 | // WMM Setup: |
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| 45 | memset(&wavefmt, 0, sizeof(wavefmt)); |
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| 46 | |
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| 47 | wavefmt.wFormatTag = WAVE_FORMAT_PCM; |
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| 48 | wavefmt.nChannels = info->channels; |
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| 49 | wavefmt.wBitsPerSample = info->bits; |
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| 50 | wavefmt.nSamplesPerSec = info->rate; |
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| 51 | wavefmt.nBlockAlign = (wavefmt.wBitsPerSample>>3)*wavefmt.nChannels; |
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| 52 | wavefmt.nAvgBytesPerSec = wavefmt.nSamplesPerSec*wavefmt.nBlockAlign; |
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| 53 | wavefmt.cbSize = 0; |
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| 54 | |
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| 55 | /* $$$ later this should be optionnal parms */ |
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| 56 | self->blocks = 64; |
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| 57 | self->splPerBlock = 512; |
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| 58 | self->msPerBlock = |
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| 59 | (self->splPerBlock * 1000 + info->rate - 1) / info->rate; |
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| 60 | |
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| 61 | return 0; |
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| 62 | } |
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| 63 | |
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| 64 | int driver_wmm_close_vio(struct roar_vio_calls * vio) { |
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| 65 | struct driver_wmm * self; |
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| 66 | |
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| 67 | if ( vio == NULL ) |
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| 68 | return -1; |
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| 69 | |
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| 70 | if ( (self = vio->inst) == NULL ) |
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| 71 | return -1; |
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| 72 | |
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| 73 | free(self); |
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| 74 | |
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| 75 | return 0; |
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| 76 | } |
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| 77 | |
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| 78 | ssize_t driver_wmm_write(struct roar_vio_calls * vio, void *buf, size_t count) { |
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| 79 | return -1; |
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| 80 | } |
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| 81 | |
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| 82 | #endif |
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| 83 | |
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| 84 | //ll |
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