1 | //filter-slfi-strobe.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2012-2015 |
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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 <roaraudio.h> |
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27 | #include <libroarlight/libroarlight.h> |
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28 | |
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29 | struct slfi_strobe { |
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30 | // config: |
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31 | ssize_t channel_brightness; |
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32 | ssize_t channel_frequency; |
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33 | ssize_t channel_trigger; |
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34 | uint8_t brightness; |
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35 | uint8_t frequency; |
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36 | uint8_t event; |
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37 | |
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38 | // runtime: |
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39 | uint8_t value_brightness; |
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40 | uint8_t value_frequency; |
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41 | uint8_t value_trigger; |
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42 | }; |
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43 | |
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44 | static int __init(struct roar_slfi_inst * inst, const struct roar_keyval * para, ssize_t paralen) { |
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45 | struct slfi_strobe * self = roar_mm_malloc(sizeof(struct slfi_strobe)); |
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46 | const struct roar_keyval * kv; |
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47 | ssize_t i; |
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48 | |
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49 | if ( self == NULL ) |
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50 | return -1; |
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51 | |
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52 | memset(self, 0, sizeof(*self)); |
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53 | self->channel_brightness = -1; |
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54 | self->channel_frequency = -1; |
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55 | self->channel_trigger = -1; |
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56 | self->brightness = 255; |
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57 | self->frequency = 64; |
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58 | self->event = ROAR_ROARDMX_EVENT_STROBE; |
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59 | inst->userdata = self; |
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60 | |
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61 | for (i = 0; i < paralen; i++) { |
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62 | kv = &(para[i]); |
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63 | if ( kv->key == NULL || kv->value == NULL ) |
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64 | continue; |
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65 | if ( !strcmp(kv->key, "event") ) { |
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66 | self->event = roar_roardmx_str2event(kv->value) & ROAR_ROARDMX_MASK_EVENT; |
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67 | } else if ( !strcmp(kv->key, "brightness") ) { |
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68 | self->brightness = atoi(kv->value); |
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69 | } else if ( !strcmp(kv->key, "frequency") ) { |
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70 | self->frequency = atoi(kv->value); |
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71 | } else if ( !strcmp(kv->key, "brightnesschannel") ) { |
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72 | self->channel_brightness = atoi(kv->value); |
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73 | } else if ( !strcmp(kv->key, "frequencychannel") ) { |
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74 | self->channel_frequency = atoi(kv->value); |
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75 | } else if ( !strcmp(kv->key, "triggerchannel") ) { |
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76 | self->channel_trigger = atoi(kv->value); |
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77 | } else { |
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78 | ROAR_WARN("__init(*): Unknown parameter: %s", kv->key); |
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79 | } |
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80 | } |
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81 | |
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82 | return 0; |
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83 | } |
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84 | |
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85 | static inline void __set_channel(uint8_t * universe, ssize_t size_of_universe, ssize_t channel, uint8_t value) { |
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86 | if ( channel < 0 ) |
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87 | return; |
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88 | if ( channel >= size_of_universe ) { |
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89 | ROAR_WARN("__set_channel(+): Universe too small for filter. Channel %llu not found.", (long long unsigned int)channel); |
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90 | return; |
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91 | } |
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92 | universe[channel] = value; |
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93 | } |
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94 | |
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95 | 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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96 | struct slfi_strobe * self = inst->userdata; |
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97 | size_t i; |
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98 | |
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99 | (void)usecspassed; |
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100 | |
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101 | for (i = 0; i < eventlen; i++) { |
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102 | switch (event[i]) { |
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103 | case ROAR_ROARDMX_EVENT_STROBE|ROAR_ROARDMX_ETYPE_BEAT: |
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104 | self->value_trigger += 7; // prime value > 3 for maximum 'random' effect. |
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105 | break; |
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106 | case ROAR_ROARDMX_EVENT_STROBE|ROAR_ROARDMX_ETYPE_OFF: |
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107 | self->value_brightness = 0; |
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108 | self->value_frequency = 0; |
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109 | break; |
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110 | case ROAR_ROARDMX_EVENT_STROBE|ROAR_ROARDMX_ETYPE_ON: |
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111 | case ROAR_ROARDMX_EVENT_STROBE|ROAR_ROARDMX_ETYPE_HOLD: |
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112 | self->value_brightness = self->brightness; |
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113 | self->value_frequency = self->frequency; |
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114 | break; |
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115 | } |
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116 | } |
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117 | |
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118 | __set_channel(universe, size_of_universe, self->channel_brightness, self->value_brightness); |
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119 | __set_channel(universe, size_of_universe, self->channel_frequency, self->value_frequency); |
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120 | __set_channel(universe, size_of_universe, self->channel_trigger, self->value_trigger); |
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121 | |
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122 | return 0; |
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123 | } |
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124 | |
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125 | static const struct roar_slfi_filter filter[1] = { |
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126 | { |
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127 | .name = "strobe", |
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128 | .description = "Controls strobes via events", |
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129 | .flags = ROAR_SLFI_FLAG_NONE, |
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130 | .init = __init, |
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131 | .uninit = NULL, |
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132 | .update = __update, |
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133 | .ctl = NULL |
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134 | } |
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135 | }; |
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136 | |
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137 | ROAR_DL_PLUGIN_REG_SLFI(filter); |
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138 | |
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139 | // This is the plugin control block. |
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140 | ROAR_DL_PLUGIN_START(filter_slfi_strobe) { |
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141 | // Here we set the name and vendor of our plugin. |
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142 | // If you have no Vendor ID you need to use ROAR_DL_PLUGIN_META_PRODUCT_NV(). |
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143 | ROAR_DL_PLUGIN_META_PRODUCT_NIV("filter-slfi-strobe", ROAR_VID_ROARAUDIO, ROAR_VNAME_ROARAUDIO); |
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144 | |
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145 | // This sets the version of your plugin. |
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146 | ROAR_DL_PLUGIN_META_VERSION(ROAR_VERSION_STRING); |
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147 | |
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148 | // This sets the license of your plugin. |
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149 | // If there is no tag for the license you use you can just |
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150 | // use ROAR_DL_PLUGIN_META_LICENSE(). |
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151 | ROAR_DL_PLUGIN_META_LICENSE_TAG(GPLv3_0); |
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152 | |
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153 | // This sets the author and contact infos. |
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154 | // There are several other macros to do this with other parameters. |
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155 | // See ROAR_DL_PLUGIN_META_CONTACT*() in the header or documentation. |
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156 | ROAR_DL_PLUGIN_META_CONTACT_FLNE("Philipp", "Schafft", "ph3-der-loewe", "lion@lion.leolix.org"); |
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157 | |
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158 | // This sets the description for your plugin. |
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159 | ROAR_DL_PLUGIN_META_DESC("This is a plugin allows to control common strobes via the strobe event."); |
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160 | |
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161 | // Load filters. |
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162 | ROAR_DL_PLUGIN_REG_FNFUNC(ROAR_DL_FN_FILTER); |
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163 | |
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164 | // This is the end of the control block. |
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165 | } ROAR_DL_PLUGIN_END |
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166 | |
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167 | //ll |
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