1 | //driver_rsound.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 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 | #define _DRV_NEED_RSOUND_H |
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27 | #include "roard.h" |
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28 | |
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29 | int driver_rsound_open (struct roar_vio_calls * inst, char * device, struct roar_audio_info * info, int fh, struct roar_stream_server * sstream) { |
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30 | rsound_t * self; |
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31 | int tmp, tmp2; |
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32 | |
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33 | if ( fh != -1 ) |
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34 | return -1; |
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35 | |
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36 | if ( rsd_init(&self) == -1 ) |
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37 | return -1; |
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38 | |
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39 | if ( device != NULL ) { |
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40 | if ( rsd_set_param(self, RSD_HOST, device) == -1 ) { |
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41 | rsd_free(self); |
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42 | return -1; |
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43 | } |
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44 | } |
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45 | |
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46 | tmp = info->channels; |
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47 | if ( rsd_set_param(self, RSD_CHANNELS, &tmp) == -1 ) { |
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48 | rsd_free(self); |
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49 | return -1; |
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50 | } |
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51 | |
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52 | if ( tmp != info->channels ) { |
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53 | rsd_free(self); |
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54 | return -1; |
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55 | } |
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56 | |
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57 | tmp = info->rate; |
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58 | if ( rsd_set_param(self, RSD_SAMPLERATE, &tmp) == -1 ) { |
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59 | rsd_free(self); |
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60 | return -1; |
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61 | } |
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62 | |
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63 | if ( tmp != info->rate ) { |
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64 | rsd_free(self); |
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65 | return -1; |
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66 | } |
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67 | |
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68 | tmp = -1; // unknown by RSound |
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69 | |
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70 | switch (info->codec) { |
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71 | case ROAR_CODEC_PCM_S_LE: |
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72 | switch (info->bits) { |
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73 | case 8: tmp = RSD_S8; break; |
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74 | case 16: tmp = RSD_S16_LE; break; |
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75 | } |
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76 | break; |
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77 | case ROAR_CODEC_PCM_S_BE: |
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78 | switch (info->bits) { |
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79 | case 8: tmp = RSD_S8; break; |
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80 | case 16: tmp = RSD_S16_BE; break; |
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81 | } |
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82 | break; |
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83 | case ROAR_CODEC_PCM_U_LE: |
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84 | switch (info->bits) { |
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85 | case 8: tmp = RSD_S8; break; |
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86 | case 16: tmp = RSD_U16_LE; break; |
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87 | } |
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88 | break; |
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89 | case ROAR_CODEC_PCM_U_BE: |
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90 | switch (info->bits) { |
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91 | case 8: tmp = RSD_S8; break; |
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92 | case 16: tmp = RSD_U16_BE; break; |
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93 | } |
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94 | break; |
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95 | } |
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96 | |
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97 | if ( tmp == -1 ) { |
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98 | rsd_free(self); |
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99 | return -1; |
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100 | } |
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101 | |
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102 | tmp2 = tmp; |
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103 | |
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104 | if ( rsd_set_param(self, RSD_FORMAT, &tmp) == -1 ) { |
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105 | rsd_free(self); |
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106 | return -1; |
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107 | } |
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108 | |
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109 | if ( tmp != tmp2 ) { |
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110 | rsd_free(self); |
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111 | return -1; |
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112 | } |
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113 | |
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114 | if ( rsd_start(self) == -1 ) { |
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115 | rsd_free(self); |
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116 | return -1; |
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117 | } |
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118 | |
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119 | memset(inst, 0, sizeof(struct roar_vio_calls)); |
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120 | |
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121 | inst->inst = self; |
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122 | inst->close = driver_rsound_close; |
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123 | inst->write = driver_rsound_write; |
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124 | |
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125 | return 0; |
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126 | } |
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127 | |
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128 | int driver_rsound_close (struct roar_vio_calls * vio) { |
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129 | int r = 0; |
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130 | |
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131 | if ( rsd_stop(vio->inst) == -1 ) |
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132 | r = -1; |
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133 | |
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134 | if ( rsd_free(vio->inst) == -1 ) |
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135 | r = -1; |
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136 | |
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137 | return r; |
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138 | } |
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139 | |
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140 | ssize_t driver_rsound_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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141 | size_t ret; |
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142 | |
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143 | ret = rsd_write(vio->inst, buf, count); |
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144 | |
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145 | if ( ret == 0 ) |
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146 | return -1; |
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147 | |
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148 | return ret; |
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149 | } |
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150 | |
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151 | //ll |
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