1 | //codecfilter_roardmx.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2014 |
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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 | #ifndef ROAR_WITHOUT_DCOMP_LIGHT |
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29 | |
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30 | static inline int __read_sset(int id, struct roar_stream_server * ss, struct roar_roardmx_message * mes) { |
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31 | uint16_t channel; |
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32 | uint8_t value; |
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33 | int i, c; |
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34 | |
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35 | // we ignore errors here at the moment as 0 not < -1 |
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36 | c = roar_roardmx_message_numchannels(mes); |
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37 | ROAR_DBG("light_check_stream(id=%i): Number of subframes: %u", id, c); |
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38 | |
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39 | for (i = 0; i < c; i++) { |
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40 | if ( roar_roardmx_message_get_chanval(mes, &channel, &value, i) == -1 ) |
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41 | return -1; |
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42 | |
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43 | if ( g_light_state.channels < channel ) { |
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44 | ROAR_WARN("light_check_stream(id=%i): Writing on non extisting DMX channel %u", id, channel); |
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45 | continue; |
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46 | } else { |
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47 | g_light_state.state[channel] = value; |
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48 | g_light_state.changes[channel] = 0xFF; // the channel changed |
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49 | } |
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50 | } |
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51 | |
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52 | return 0; |
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53 | } |
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54 | |
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55 | static inline int __read_rangeset(int id, struct roar_stream_server * ss, struct roar_roardmx_message * mes) { |
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56 | uint16_t start, end; |
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57 | uint8_t value; |
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58 | size_t p; |
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59 | int i, c; |
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60 | |
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61 | // we ignore errors here at the moment as 0 not < -1 |
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62 | c = roar_roardmx_message_numchannels(mes); |
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63 | ROAR_DBG("__read_rangeset(id=%i, ...): Number of subframes: %u", id, c); |
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64 | |
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65 | for (i = 0; i < c; i++) { |
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66 | ROAR_DBG("__read_rangeset(id=%i, ...): i=%i", id, i); |
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67 | |
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68 | if ( roar_roardmx_message_get_rangeval(mes, &start, &end, &value, i) == -1 ) { |
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69 | ROAR_WARN("__read_rangeset(id=%i, ...): Can not read subframe: %i: %s", id, i, roar_errorstring); |
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70 | return -1; |
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71 | } |
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72 | |
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73 | ROAR_DBG("__read_rangeset(id=%i, ...): i=%i, start=%u, end=%u, value=%u", id, i, start, end, value); |
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74 | |
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75 | if ( start > end ) { |
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76 | ROAR_WARN("__read_rangeset(id=%i, ...): Bad RoarDMX Rangeset frame: start > end.", id); |
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77 | continue; |
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78 | } |
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79 | |
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80 | if ( g_light_state.channels < end ) { |
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81 | ROAR_WARN("__read_rangeset(id=%i, ...): Range out of DMX universe: %u-%u", id, start, end); |
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82 | continue; |
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83 | } |
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84 | |
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85 | for (p = start; p <= end; p++) { |
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86 | g_light_state.state[p] = value; |
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87 | g_light_state.changes[p] = 0xFF; // the channel changed |
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88 | } |
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89 | } |
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90 | |
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91 | return 0; |
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92 | } |
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93 | |
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94 | static inline int __read_events(int id, struct roar_stream_server * ss, struct roar_roardmx_message * mes) { |
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95 | const uint8_t * events; |
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96 | size_t len; |
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97 | |
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98 | (void)id, (void)ss; |
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99 | |
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100 | if ( roar_roardmx_message_get_events(mes, &events, &len) == -1 ) |
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101 | return -1; |
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102 | |
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103 | return light_dmxevent_add(events, len); |
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104 | } |
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105 | |
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106 | int cf_light_roardmx_read(int id, struct roar_stream_server * ss) { |
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107 | struct roar_roardmx_message mes; |
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108 | unsigned char type; |
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109 | |
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110 | if ( roar_roardmx_message_recv(&mes, &(ss->vio)) == -1 ) |
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111 | return -1; |
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112 | |
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113 | if ( roar_roardmx_message_get_type(&mes, &type) == -1 ) |
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114 | return -1; |
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115 | |
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116 | switch (type) { |
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117 | case ROAR_ROARDMX_TYPE_SSET: return __read_sset(id, ss, &mes); break; |
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118 | case ROAR_ROARDMX_TYPE_RANGESET: return __read_rangeset(id, ss, &mes); break; |
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119 | case ROAR_ROARDMX_TYPE_EVENT: return __read_events(id, ss, &mes); break; |
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120 | } |
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121 | |
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122 | roar_err_set(ROAR_ERROR_NSTYPE); |
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123 | return -1; |
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124 | } |
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125 | |
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126 | static inline int __write_events(int id, struct roar_stream_server * ss) { |
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127 | struct roar_roardmx_message mes; |
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128 | const uint8_t * events; |
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129 | size_t len; |
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130 | |
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131 | if ( light_dmxevent_read(&events, &len) == -1 ) |
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132 | return -1; |
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133 | |
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134 | // check if we need to send events at all: |
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135 | if ( len == 0 ) |
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136 | return 0; |
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137 | |
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138 | // ok, now let's build the message: |
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139 | if ( roar_roardmx_message_new_event(&mes) == -1 ) |
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140 | return -1; |
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141 | |
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142 | if ( roar_roardmx_message_add_events(&mes, events, len) == -1 ) |
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143 | return -1; |
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144 | |
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145 | // and send it: |
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146 | if ( roar_roardmx_message_send(&mes, &(ss->vio)) == -1 ) |
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147 | return -1; |
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148 | |
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149 | return 0; |
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150 | } |
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151 | |
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152 | static inline int __write_channels(int id, struct roar_stream_server * ss) { |
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153 | struct roar_roardmx_message mes; |
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154 | int have_message = 0; |
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155 | int i; |
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156 | |
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157 | for (i = 0; i < g_light_state.channels; i++) { |
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158 | if ( g_light_state.outputchanges[i] ) { |
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159 | if ( !have_message ) |
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160 | if ( roar_roardmx_message_new_sset(&mes) == -1 ) |
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161 | return -1; |
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162 | |
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163 | have_message = 2; |
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164 | |
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165 | if ( roar_roardmx_message_add_chanval(&mes, i, g_light_state.output[i]) == -1 ) { |
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166 | if ( roar_roardmx_message_send(&mes, &(ss->vio)) == -1 ) |
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167 | return -1; |
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168 | |
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169 | if ( roar_roardmx_message_new_sset(&mes) == -1 ) |
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170 | return -1; |
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171 | |
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172 | have_message = 1; |
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173 | } |
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174 | } |
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175 | } |
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176 | |
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177 | if ( have_message == 2 ) |
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178 | if ( roar_roardmx_message_send(&mes, &(ss->vio)) == -1 ) |
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179 | return -1; |
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180 | |
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181 | return 0; |
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182 | } |
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183 | |
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184 | int cf_light_roardmx_write(int id, struct roar_stream_server * ss) { |
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185 | if ( __write_events(id, ss) == -1 ) |
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186 | return -1; |
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187 | |
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188 | if ( __write_channels(id, ss) == -1 ) |
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189 | return -1; |
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190 | |
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191 | return 0; |
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192 | } |
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193 | |
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194 | #endif |
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195 | |
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196 | //ll |
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