1 | //light.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2015 |
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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 uint8_t nextcycle_events[MAX_EVENTS_PER_CYCLE]; |
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31 | static size_t nextcycle_eventsqueuelen; |
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32 | static int __cb_event_add(struct roar_slfi_inst * inst, void * userdata, uint8_t event); |
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33 | |
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34 | // declared 'extern' |
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35 | struct light_state g_light_state; |
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36 | struct light_mixer g_light_mixer; |
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37 | // // |
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38 | |
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39 | static inline void __set_channel(size_t index, uint8_t val) { |
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40 | g_light_state.changes[index] |= g_light_state.state[index] ^ val; |
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41 | g_light_state.state[index] = val; |
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42 | } |
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43 | |
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44 | int light_init (uint32_t channels) { |
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45 | struct roar_stream_server * ss; |
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46 | int i; |
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47 | |
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48 | g_light_state.channels = 0; |
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49 | |
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50 | if ( channels == 0 || channels > ((uint32_t)512UL*(uint32_t)512UL) ) /* unrealstic values */ |
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51 | return -1; |
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52 | |
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53 | if ( (g_light_state.state = roar_mm_malloc(channels)) == NULL ) { |
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54 | return -1; |
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55 | } |
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56 | |
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57 | if ( (g_light_state.changes = roar_mm_malloc(channels)) == NULL ) { |
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58 | roar_mm_free(g_light_state.state); |
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59 | return -1; |
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60 | } |
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61 | |
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62 | if ( (g_light_state.output = roar_mm_malloc(channels)) == NULL ) { |
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63 | roar_mm_free(g_light_state.state); |
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64 | roar_mm_free(g_light_state.changes); |
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65 | return -1; |
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66 | } |
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67 | |
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68 | if ( (g_light_state.outputchanges = roar_mm_malloc(channels)) == NULL ) { |
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69 | roar_mm_free(g_light_state.state); |
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70 | roar_mm_free(g_light_state.changes); |
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71 | roar_mm_free(g_light_state.output); |
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72 | return -1; |
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73 | } |
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74 | |
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75 | g_light_state.channels = channels; |
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76 | g_light_state.filter = NULL; |
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77 | |
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78 | if ( (g_light_mixer.stream = add_mixer(ROAR_SUBSYS_LIGHT, _MIXER_NAME("Light Control"), &ss)) == -1 ) { |
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79 | roar_mm_free(g_light_state.state); |
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80 | return -1; |
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81 | } |
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82 | |
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83 | ROAR_STREAM(ss)->info.codec = ROAR_CODEC_DMX512; |
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84 | ROAR_STREAM(ss)->info.bits = ROAR_LIGHT_BITS; |
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85 | ROAR_STREAM(ss)->info.rate = ROAR_OUTPUT_CFREQ; |
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86 | |
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87 | for (i = 0; i < ROAR_STREAMS_MAX; i++) { |
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88 | if ( g_streams[i] != NULL ) { |
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89 | if ( streams_get_subsys(i) == ROAR_SUBSYS_LIGHT ) { |
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90 | streams_set_mixer_stream(i, g_light_mixer.stream); |
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91 | } |
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92 | } |
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93 | } |
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94 | |
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95 | return light_reset(); |
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96 | } |
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97 | |
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98 | int light_free (void) { |
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99 | if ( g_light_state.filter != NULL ) { |
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100 | roar_slfi_unref(g_light_state.filter); |
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101 | } |
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102 | |
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103 | if ( g_light_state.state != NULL ) { |
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104 | roar_mm_free(g_light_state.state); |
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105 | } |
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106 | |
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107 | if ( g_light_state.changes != NULL ) { |
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108 | roar_mm_free(g_light_state.changes); |
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109 | } |
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110 | |
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111 | if ( g_light_state.output != NULL ) { |
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112 | roar_mm_free(g_light_state.output); |
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113 | } |
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114 | |
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115 | if ( g_light_state.outputchanges != NULL ) { |
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116 | roar_mm_free(g_light_state.outputchanges); |
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117 | } |
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118 | |
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119 | g_light_state.channels = 0; |
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120 | |
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121 | return 0; |
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122 | } |
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123 | |
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124 | int light_reset (void) { |
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125 | if ( g_light_state.channels == 0 ) |
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126 | return 0; |
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127 | |
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128 | if ( g_light_state.state == NULL ) |
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129 | return -1; |
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130 | |
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131 | if ( g_light_state.changes == NULL ) |
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132 | return -1; |
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133 | |
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134 | memset(g_light_state.state, 0, g_light_state.channels); |
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135 | memset(g_light_state.changes, 0, g_light_state.channels); |
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136 | memset(g_light_state.output, 0, g_light_state.channels); |
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137 | memset(g_light_state.outputchanges, 0, g_light_state.channels); |
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138 | memset(g_light_state.events, 0, sizeof(g_light_state.events)); |
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139 | |
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140 | g_light_state.eventsqueuelen = 0; |
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141 | |
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142 | return 0; |
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143 | } |
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144 | |
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145 | // called at end of mainloop. |
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146 | int light_reinit(void) { |
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147 | if ( g_light_state.changes == NULL ) |
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148 | return -1; |
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149 | |
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150 | memset(g_light_state.changes, 0, g_light_state.channels); |
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151 | memset(g_light_state.events, 0, sizeof(g_light_state.events)); |
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152 | |
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153 | g_light_state.eventsqueuelen = 0; |
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154 | |
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155 | if ( nextcycle_eventsqueuelen ) { |
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156 | light_dmxevent_add(nextcycle_events, nextcycle_eventsqueuelen); |
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157 | nextcycle_eventsqueuelen = 0; |
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158 | } |
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159 | |
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160 | return 0; |
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161 | } |
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162 | |
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163 | // called at mid of mainloop. |
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164 | int light_update(void) { |
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165 | uint8_t * tmp; |
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166 | unsigned int c; |
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167 | |
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168 | // swap buffers: |
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169 | // after that step we have the old values in outputchanges and output is a fresh buffer. |
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170 | tmp = g_light_state.outputchanges; |
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171 | g_light_state.outputchanges = g_light_state.output; |
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172 | g_light_state.output = tmp; |
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173 | |
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174 | // copy data for filters: |
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175 | memcpy(g_light_state.output, g_light_state.state, g_light_state.channels); |
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176 | |
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177 | // TODO: next run filters |
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178 | if ( g_light_state.filter != NULL ) { |
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179 | if ( roar_slfi_update(g_light_state.filter, |
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180 | g_light_state.output, g_light_state.channels, |
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181 | ((int32_t)1000000LU)/(int32_t)ROAR_OUTPUT_CFREQ, |
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182 | g_light_state.events, g_light_state.eventsqueuelen) == -1 ) { |
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183 | ROAR_WARN("light_update(void): Can not run SLFI filter: %s", roar_errorstring); |
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184 | } |
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185 | } |
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186 | |
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187 | // calculate diffrence: |
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188 | // after this step we have only teh changes in the outputchanges array. |
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189 | for (c = 0; c < g_light_state.channels; c++) |
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190 | g_light_state.outputchanges[c] ^= g_light_state.output[c]; |
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191 | |
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192 | return 0; |
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193 | } |
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194 | |
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195 | int light_check_stream (int id) { |
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196 | struct roar_stream * s; |
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197 | struct roar_stream_server * ss; |
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198 | char buf[512]; |
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199 | int i; |
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200 | |
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201 | if ( g_streams[id] == NULL ) |
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202 | return -1; |
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203 | |
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204 | ROAR_DBG("light_check_stream(id=%i) = ?", id); |
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205 | |
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206 | s = ROAR_STREAM(ss = g_streams[id]); |
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207 | |
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208 | switch (s->info.codec) { |
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209 | case ROAR_CODEC_DMX512: |
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210 | if ( stream_vio_s_read(ss, buf, 512) != 512 ) { |
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211 | streams_delete(id); |
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212 | return -1; |
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213 | } |
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214 | |
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215 | for (i = 0; i < (g_light_state.channels < 512 ? g_light_state.channels : 512); i++) { |
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216 | __set_channel(i, buf[i]); |
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217 | } |
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218 | // memcpy(g_light_state.state, buf, g_light_state.channels < 512 ? g_light_state.channels : 512); |
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219 | |
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220 | s->pos = ROAR_MATH_OVERFLOW_ADD(s->pos, 1); |
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221 | |
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222 | return 0; |
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223 | break; |
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224 | case ROAR_CODEC_ROARDMX: |
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225 | ROAR_DBG("light_check_stream(id=%i): Codec: RoarDMX", id); |
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226 | if ( cf_light_roardmx_read(id, ss) == -1 ) { |
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227 | streams_delete(id); // simply drop the client on error. |
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228 | return -1; |
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229 | } |
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230 | break; |
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231 | default: |
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232 | streams_delete(id); |
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233 | return -1; |
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234 | } |
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235 | |
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236 | return 0; |
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237 | } |
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238 | |
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239 | static inline int light_send_stream_dmx512 (int id, struct roar_stream * s, struct roar_stream_server * ss) { |
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240 | size_t chans = g_light_state.channels; |
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241 | uint8_t buf[512]; |
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242 | register uint8_t * bufptr; |
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243 | |
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244 | if ( chans > 512 ) |
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245 | chans = 512; |
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246 | |
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247 | if ( chans == 512 ) { |
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248 | bufptr = g_light_state.output; |
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249 | } else { |
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250 | memset(buf, 0, 512); |
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251 | memcpy(buf, g_light_state.output, chans); |
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252 | bufptr = buf; |
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253 | } |
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254 | |
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255 | if ( stream_vio_s_write(ss, bufptr, 512) != 512 ) { |
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256 | streams_delete(id); |
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257 | return -1; |
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258 | } |
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259 | |
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260 | s->pos = ROAR_MATH_OVERFLOW_ADD(s->pos, 1); |
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261 | |
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262 | return 0; |
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263 | } |
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264 | |
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265 | int light_send_stream (int id) { |
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266 | struct roar_stream * s; |
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267 | struct roar_stream_server * ss; |
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268 | |
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269 | if ( g_streams[id] == NULL ) |
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270 | return -1; |
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271 | |
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272 | ROAR_DBG("light_send_stream(id=%i) = ?", id); |
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273 | |
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274 | s = ROAR_STREAM(ss = g_streams[id]); |
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275 | |
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276 | switch (s->info.codec) { |
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277 | case ROAR_CODEC_DMX512: |
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278 | return light_send_stream_dmx512(id, s, ss); |
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279 | break; |
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280 | case ROAR_CODEC_ROARDMX: |
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281 | return cf_light_roardmx_write(id, ss); |
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282 | break; |
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283 | default: |
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284 | streams_delete(id); |
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285 | return -1; |
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286 | } |
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287 | |
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288 | return 0; |
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289 | } |
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290 | |
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291 | int light_filter_load(int primary, const char * name, int autoload, const struct roar_keyval * para, ssize_t paralen) { |
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292 | struct roar_slfi_inst * filter; |
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293 | int ret; |
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294 | int err; |
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295 | |
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296 | if ( primary && g_light_state.filter != NULL ) { |
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297 | roar_err_set(ROAR_ERROR_ALREADY); |
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298 | return -1; |
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299 | } else if ( !primary && g_light_state.filter == NULL ) { |
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300 | roar_err_set(ROAR_ERROR_BADSTATE); |
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301 | return -1; |
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302 | } |
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303 | |
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304 | filter = roar_slfi_new(name, autoload, para, paralen); |
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305 | if ( filter == NULL ) |
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306 | return -1; |
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307 | |
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308 | if ( primary ) { |
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309 | roar_slfi_cb_set_event_add(filter, __cb_event_add, NULL); |
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310 | g_light_state.filter = filter; |
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311 | return 0; |
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312 | } |
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313 | |
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314 | ret = roar_slfi_ctl(g_light_state.filter, ROAR_SLFI_CMD_PUSH, filter); |
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315 | err = roar_error; |
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316 | |
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317 | roar_slfi_unref(filter); |
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318 | |
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319 | roar_err_set(err); |
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320 | return ret; |
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321 | } |
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322 | |
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323 | int light_dmxchannel_get(size_t index) { |
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324 | if ( (size_t)g_light_state.channels <= index ) { |
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325 | roar_err_set(ROAR_ERROR_NOENT); |
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326 | return -1; |
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327 | } |
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328 | |
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329 | return (int)(unsigned int)(uint8_t)g_light_state.output[index]; |
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330 | } |
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331 | |
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332 | int light_dmxchannel_set(size_t index, uint8_t val) { |
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333 | if ( (size_t)g_light_state.channels <= index ) { |
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334 | roar_err_set(ROAR_ERROR_NOENT); |
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335 | return -1; |
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336 | } |
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337 | |
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338 | __set_channel(index, val); |
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339 | return 0; |
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340 | } |
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341 | |
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342 | ssize_t light_dmxchannel_num(void) { |
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343 | if ( g_light_state.state == NULL ) { |
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344 | roar_err_set(ROAR_ERROR_BADSTATE); |
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345 | return -1; |
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346 | } |
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347 | |
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348 | return g_light_state.channels; |
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349 | } |
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350 | |
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351 | int light_dmxevent_add(const uint8_t * events, size_t len) { |
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352 | size_t i; |
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353 | |
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354 | if ( events == NULL ) { |
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355 | roar_err_set(ROAR_ERROR_FAULT); |
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356 | return -1; |
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357 | } |
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358 | |
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359 | if ( len > (sizeof(g_light_state.events) - g_light_state.eventsqueuelen) ) { |
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360 | roar_err_set(ROAR_ERROR_NOSPC); |
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361 | return -1; |
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362 | } |
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363 | |
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364 | for (i = 0; i < len; i++) { |
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365 | g_light_state.events[g_light_state.eventsqueuelen++] = events[i]; |
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366 | roar_notify_core_emit_simple(ROAR_DATA_DMX512_EVENT, -1, g_light_mixer.stream, ROAR_OT_STREAM, events[i], -1, NULL, -1); |
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367 | } |
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368 | |
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369 | return 0; |
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370 | } |
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371 | |
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372 | int light_dmxevent_read(const uint8_t ** events, size_t * len) { |
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373 | if ( events == NULL || len == NULL ) { |
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374 | roar_err_set(ROAR_ERROR_FAULT); |
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375 | return -1; |
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376 | } |
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377 | |
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378 | *events = g_light_state.events; |
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379 | *len = g_light_state.eventsqueuelen; |
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380 | |
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381 | return 0; |
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382 | } |
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383 | |
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384 | static int __cb_event_add(struct roar_slfi_inst * inst, void * userdata, uint8_t event) { |
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385 | if ( nextcycle_eventsqueuelen == MAX_EVENTS_PER_CYCLE ) { |
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386 | roar_err_set(ROAR_ERROR_NOSPC); |
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387 | return -1; |
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388 | } |
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389 | |
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390 | nextcycle_events[nextcycle_eventsqueuelen++] = event; |
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391 | |
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392 | return 0; |
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393 | } |
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394 | |
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395 | #endif |
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396 | |
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397 | //ll |
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