1 | //filter-slfi-trigger.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2012-2014 |
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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 <roaraudio.h> |
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27 | #include <libroarlight/libroarlight.h> |
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28 | |
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29 | #define MAX_FILTER 32 |
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30 | |
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31 | struct slfi_trigger { |
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32 | struct roar_slfi_inst * filter; |
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33 | uint8_t event; |
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34 | int active; |
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35 | }; |
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36 | |
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37 | static int __cb_event_add(struct roar_slfi_inst * inst, void * userdata, uint8_t event) { |
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38 | (void)inst; |
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39 | return roar_slfi_event_add(userdata, event); |
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40 | } |
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41 | |
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42 | static int __init(struct roar_slfi_inst * inst, const struct roar_keyval * para, ssize_t paralen) { |
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43 | struct slfi_trigger * self = roar_mm_malloc(sizeof(struct slfi_trigger)); |
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44 | const struct roar_keyval * kv; |
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45 | ssize_t i; |
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46 | |
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47 | if ( self == NULL ) |
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48 | return -1; |
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49 | |
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50 | self->filter = NULL; |
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51 | self->event = ROAR_ROARDMX_EVENT_STEP; |
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52 | self->active = 0; |
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53 | inst->userdata = self; |
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54 | |
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55 | for (i = 0; i < paralen; i++) { |
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56 | kv = &(para[i]); |
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57 | if ( kv->key == NULL || kv->value == NULL ) |
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58 | continue; |
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59 | if ( !strcmp(kv->key, "event") ) { |
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60 | self->event = roar_roardmx_str2event(kv->value); |
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61 | } else { |
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62 | ROAR_WARN("__init(*): Unknown parameter: %s", kv->key); |
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63 | } |
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64 | } |
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65 | |
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66 | return 0; |
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67 | } |
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68 | |
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69 | static int __uninit(struct roar_slfi_inst * inst) { |
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70 | struct slfi_trigger * self = inst->userdata; |
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71 | |
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72 | roar_slfi_unref(self->filter); |
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73 | |
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74 | return 0; |
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75 | } |
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76 | |
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77 | static int __update(struct roar_slfi_inst * inst, uint8_t * universe, ssize_t size_of_universe, int32_t usecspassed, const uint8_t * event, size_t eventlen) { |
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78 | struct slfi_trigger * self = inst->userdata; |
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79 | size_t i; |
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80 | int active = self->active; |
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81 | |
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82 | // Don't do anything if we have no child: |
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83 | if ( self->filter == NULL ) |
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84 | return 0; |
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85 | |
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86 | for (i = 0; i < eventlen; i++) { |
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87 | if ( event[i] == self->event ) { |
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88 | active = 1; |
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89 | } else if ( event[i] == (self->event|ROAR_ROARDMX_ETYPE_ON) ) { |
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90 | self->active = active = 1; |
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91 | } else if ( event[i] == (self->event|ROAR_ROARDMX_ETYPE_OFF) ) { |
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92 | self->active = active = 0; |
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93 | } |
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94 | } |
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95 | |
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96 | if ( !active ) |
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97 | return 0; |
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98 | |
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99 | return roar_slfi_update(self->filter, universe, size_of_universe, usecspassed, event, eventlen); |
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100 | } |
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101 | |
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102 | static int __ctl(struct roar_slfi_inst * inst, enum roar_slfi_command command, void * argp) { |
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103 | struct slfi_trigger * self = inst->userdata; |
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104 | |
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105 | switch (command) { |
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106 | case ROAR_SLFI_CMD_PUSH: |
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107 | if ( roar_slfi_ref(argp) == -1 ) |
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108 | return -1; |
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109 | roar_slfi_cb_set_event_add(argp, __cb_event_add, inst); |
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110 | self->filter = argp; |
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111 | return 0; |
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112 | break; |
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113 | #ifndef DEBUG |
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114 | default: |
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115 | break; |
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116 | #endif |
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117 | } |
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118 | |
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119 | roar_err_set(ROAR_ERROR_BADRQC); |
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120 | return -1; |
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121 | } |
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122 | |
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123 | static const struct roar_slfi_filter filter[1] = { |
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124 | { |
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125 | .name = "trigger", |
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126 | .description = "Trigger SLFI filter on event", |
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127 | .flags = ROAR_SLFI_FLAG_NONE, |
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128 | .init = __init, |
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129 | .uninit = __uninit, |
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130 | .update = __update, |
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131 | .ctl = __ctl |
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132 | } |
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133 | }; |
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134 | |
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135 | ROAR_DL_PLUGIN_REG_SLFI(filter); |
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136 | |
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137 | // This is the plugin control block. |
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138 | ROAR_DL_PLUGIN_START(filter_slfi_trigger) { |
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139 | // Here we set the name and vendor of our plugin. |
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140 | // If you have no Vendor ID you need to use ROAR_DL_PLUGIN_META_PRODUCT_NV(). |
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141 | ROAR_DL_PLUGIN_META_PRODUCT_NIV("filter-slfi-trigger", ROAR_VID_ROARAUDIO, ROAR_VNAME_ROARAUDIO); |
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142 | |
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143 | // This sets the version of your plugin. |
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144 | ROAR_DL_PLUGIN_META_VERSION(ROAR_VERSION_STRING); |
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145 | |
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146 | // This sets the license of your plugin. |
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147 | // If there is no tag for the license you use you can just |
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148 | // use ROAR_DL_PLUGIN_META_LICENSE(). |
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149 | ROAR_DL_PLUGIN_META_LICENSE_TAG(GPLv3_0); |
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150 | |
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151 | // This sets the author and contact infos. |
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152 | // There are several other macros to do this with other parameters. |
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153 | // See ROAR_DL_PLUGIN_META_CONTACT*() in the header or documentation. |
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154 | ROAR_DL_PLUGIN_META_CONTACT_FLNE("Philipp", "Schafft", "ph3-der-loewe", "lion@lion.leolix.org"); |
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155 | |
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156 | // This sets the description for your plugin. |
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157 | ROAR_DL_PLUGIN_META_DESC("This is a container plugin for SLFI filter triggers."); |
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158 | |
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159 | // Load filters. |
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160 | ROAR_DL_PLUGIN_REG_FNFUNC(ROAR_DL_FN_FILTER); |
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161 | |
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162 | // This is the end of the control block. |
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163 | } ROAR_DL_PLUGIN_END |
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164 | |
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165 | //ll |
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