1 | //driver_artsc.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2011 |
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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 | |
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28 | #ifdef ROAR_HAVE_LIBARTSC |
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29 | |
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30 | #define INIT +1 |
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31 | #define SHUTDOWN -1 |
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32 | |
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33 | static int driver_artsc_init_shutdown (int action) { |
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34 | static int state = 0; |
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35 | |
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36 | if ( action != INIT && action != SHUTDOWN ) |
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37 | return -1; |
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38 | |
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39 | if ( state == 0 && action == INIT ) { |
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40 | if ( arts_init() != 0 ) |
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41 | return -1; |
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42 | } else if ( state == 1 && action == SHUTDOWN ) { |
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43 | arts_free(); |
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44 | } |
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45 | |
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46 | state += action; |
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47 | |
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48 | return 0; |
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49 | } |
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50 | |
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51 | int driver_artsc_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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52 | struct roar_artsc * self = NULL; |
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53 | int autoconfig = 0; |
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54 | |
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55 | (void)sstream; |
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56 | |
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57 | if ( fh != -1 || device != NULL ) |
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58 | return -1; |
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59 | |
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60 | if ( sstream != NULL ) { |
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61 | autoconfig = streams_get_flag(ROAR_STREAM(sstream)->id, ROAR_FLAG_AUTOCONF); |
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62 | } |
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63 | |
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64 | self = roar_mm_malloc(sizeof(struct roar_artsc)); |
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65 | |
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66 | if ( self == NULL ) |
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67 | return -1; |
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68 | |
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69 | memset(self, 0, sizeof(struct roar_artsc)); |
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70 | |
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71 | if ( driver_artsc_init_shutdown(INIT) == -1 ) { |
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72 | roar_mm_free(self); |
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73 | return -1; |
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74 | } |
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75 | |
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76 | info->codec = ROAR_CODEC_DEFAULT; |
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77 | |
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78 | self->info = info; |
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79 | self->stream = arts_play_stream(info->rate, info->bits, info->channels, "roard"); |
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80 | |
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81 | if ( self->stream == NULL && autoconfig ) { |
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82 | info->bits = 16; |
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83 | self->stream = arts_play_stream(info->rate, info->bits, info->channels, "roard"); |
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84 | } |
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85 | |
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86 | if ( self->stream == NULL ) { |
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87 | roar_mm_free(self); |
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88 | driver_artsc_init_shutdown(SHUTDOWN); |
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89 | return -1; |
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90 | } |
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91 | |
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92 | memset(inst, 0, sizeof(struct roar_vio_calls)); |
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93 | |
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94 | inst->inst = (void*) self; |
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95 | inst->write = driver_artsc_write; |
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96 | inst->close = driver_artsc_close; |
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97 | inst->ctl = driver_artsc_ctl; |
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98 | inst->nonblock = driver_artsc_nonblock; |
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99 | |
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100 | return 0; |
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101 | } |
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102 | |
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103 | ssize_t driver_artsc_write (struct roar_vio_calls * vio, void *buf, size_t count) { |
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104 | struct roar_artsc * self = vio->inst; |
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105 | int ret = arts_write(self->stream, buf, count); |
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106 | |
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107 | if ( ret >= 0 ) |
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108 | return ret; |
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109 | |
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110 | return -1; |
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111 | } |
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112 | |
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113 | int driver_artsc_close (struct roar_vio_calls * vio) { |
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114 | struct roar_artsc * self = vio->inst; |
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115 | |
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116 | arts_close_stream(self->stream); |
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117 | |
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118 | roar_mm_free(self); |
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119 | |
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120 | return driver_artsc_init_shutdown(SHUTDOWN); |
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121 | } |
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122 | |
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123 | int driver_artsc_nonblock(struct roar_vio_calls * vio, int state) { |
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124 | struct roar_artsc * self = vio->inst; |
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125 | int ret; |
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126 | |
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127 | switch (state) { |
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128 | case ROAR_SOCKET_NONBLOCK: |
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129 | ret = arts_stream_set(self->stream, ARTS_P_BLOCKING, 0); |
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130 | if ( ret == 0 ) |
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131 | return 0; |
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132 | break; |
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133 | case ROAR_SOCKET_BLOCK: |
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134 | ret = arts_stream_set(self->stream, ARTS_P_BLOCKING, 1); |
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135 | if ( ret == 1 ) |
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136 | return 0; |
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137 | break; |
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138 | } |
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139 | |
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140 | return -1; |
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141 | } |
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142 | |
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143 | int driver_artsc_ctl (struct roar_vio_calls * vio, int cmd, void * data) { |
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144 | struct roar_artsc * self = vio->inst; |
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145 | ssize_t bps; |
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146 | int ret; |
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147 | uint_least32_t tmp; |
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148 | |
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149 | switch (cmd) { |
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150 | case ROAR_VIO_CTL_GET_DBLKSIZE: |
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151 | ret = arts_stream_get(self->stream, ARTS_P_PACKET_SIZE); |
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152 | if ( ret > 0 ) { |
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153 | *(uint_least32_t *)data = ret; |
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154 | return 0; |
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155 | } |
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156 | break; |
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157 | case ROAR_VIO_CTL_GET_DELAY: |
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158 | ret = arts_stream_get(self->stream, ARTS_P_TOTAL_LATENCY); |
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159 | if ( ret < 0 ) |
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160 | return -1; |
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161 | bps = roar_info2bitspersec(self->info); |
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162 | if ( bps < 0 ) |
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163 | return -1; |
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164 | |
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165 | tmp = bps / (ssize_t)8; |
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166 | tmp *= ret; |
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167 | tmp /= (uint_least32_t)1000; |
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168 | |
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169 | *(uint_least32_t *)data = tmp; |
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170 | |
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171 | return 0; |
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172 | default: |
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173 | return -1; |
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174 | } |
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175 | |
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176 | return -1; |
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177 | } |
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178 | |
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179 | #endif |
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180 | |
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181 | //ll |
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