[1816] | 1 | //light.c: |
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| 2 | |
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| 3 | /* |
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[5961] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2014 |
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[1816] | 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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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[1816] | 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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[2495] | 28 | #ifndef ROAR_WITHOUT_DCOMP_LIGHT |
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| 29 | |
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[5194] | 30 | // declared 'extern' |
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| 31 | struct light_state g_light_state; |
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| 32 | struct light_mixer g_light_mixer; |
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| 33 | // // |
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| 34 | |
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[5916] | 35 | static inline void __set_channel(size_t index, uint8_t val) { |
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[5706] | 36 | g_light_state.changes[index] |= g_light_state.state[index] ^ val; |
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| 37 | g_light_state.state[index] = val; |
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| 38 | } |
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| 39 | |
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[5210] | 40 | int light_init (uint32_t channels) { |
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[2959] | 41 | struct roar_stream_server * ss; |
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[3215] | 42 | int i; |
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[1818] | 43 | |
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[1819] | 44 | g_light_state.channels = 0; |
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| 45 | |
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[5210] | 46 | if ( channels == 0 || channels > ((uint32_t)512UL*(uint32_t)512UL) ) /* unrealstic values */ |
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[1922] | 47 | return -1; |
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| 48 | |
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[4957] | 49 | if ( (g_light_state.state = roar_mm_malloc(channels)) == NULL ) { |
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[1818] | 50 | return -1; |
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| 51 | } |
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| 52 | |
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[4957] | 53 | if ( (g_light_state.changes = roar_mm_malloc(channels)) == NULL ) { |
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| 54 | roar_mm_free(g_light_state.state); |
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[1966] | 55 | return -1; |
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| 56 | } |
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| 57 | |
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[5980] | 58 | if ( (g_light_state.output = roar_mm_malloc(channels)) == NULL ) { |
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| 59 | roar_mm_free(g_light_state.state); |
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| 60 | roar_mm_free(g_light_state.changes); |
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| 61 | return -1; |
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| 62 | } |
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| 63 | |
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| 64 | if ( (g_light_state.outputchanges = roar_mm_malloc(channels)) == NULL ) { |
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| 65 | roar_mm_free(g_light_state.state); |
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| 66 | roar_mm_free(g_light_state.changes); |
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| 67 | roar_mm_free(g_light_state.output); |
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| 68 | return -1; |
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| 69 | } |
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| 70 | |
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[1818] | 71 | g_light_state.channels = channels; |
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| 72 | |
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[2959] | 73 | if ( (g_light_mixer.stream = add_mixer(ROAR_SUBSYS_LIGHT, _MIXER_NAME("Light Control"), &ss)) == -1 ) { |
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[4957] | 74 | roar_mm_free(g_light_state.state); |
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[2944] | 75 | return -1; |
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| 76 | } |
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| 77 | |
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[2959] | 78 | ROAR_STREAM(ss)->info.codec = ROAR_CODEC_DMX512; |
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| 79 | ROAR_STREAM(ss)->info.bits = ROAR_LIGHT_BITS; |
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| 80 | ROAR_STREAM(ss)->info.rate = ROAR_OUTPUT_CFREQ; |
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| 81 | |
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[3215] | 82 | for (i = 0; i < ROAR_STREAMS_MAX; i++) { |
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| 83 | if ( g_streams[i] != NULL ) { |
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| 84 | if ( streams_get_subsys(i) == ROAR_SUBSYS_LIGHT ) { |
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| 85 | streams_set_mixer_stream(i, g_light_mixer.stream); |
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| 86 | } |
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| 87 | } |
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| 88 | } |
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| 89 | |
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[1818] | 90 | return light_reset(); |
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| 91 | } |
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| 92 | |
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| 93 | int light_free (void) { |
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| 94 | if ( g_light_state.state != NULL ) { |
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[4957] | 95 | roar_mm_free(g_light_state.state); |
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[1818] | 96 | } |
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| 97 | |
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[1966] | 98 | if ( g_light_state.changes != NULL ) { |
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[4957] | 99 | roar_mm_free(g_light_state.changes); |
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[1966] | 100 | } |
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| 101 | |
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[5980] | 102 | if ( g_light_state.output != NULL ) { |
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[5981] | 103 | roar_mm_free(g_light_state.output); |
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[5980] | 104 | } |
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| 105 | |
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| 106 | if ( g_light_state.outputchanges != NULL ) { |
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[5981] | 107 | roar_mm_free(g_light_state.outputchanges); |
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[5980] | 108 | } |
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| 109 | |
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[1818] | 110 | g_light_state.channels = 0; |
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| 111 | |
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| 112 | return 0; |
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| 113 | } |
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| 114 | |
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| 115 | int light_reset (void) { |
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| 116 | if ( g_light_state.channels == 0 ) |
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| 117 | return 0; |
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| 118 | |
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| 119 | if ( g_light_state.state == NULL ) |
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| 120 | return -1; |
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| 121 | |
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[1966] | 122 | if ( g_light_state.changes == NULL ) |
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| 123 | return -1; |
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| 124 | |
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[5980] | 125 | memset(g_light_state.state, 0, g_light_state.channels); |
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| 126 | memset(g_light_state.changes, 0, g_light_state.channels); |
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| 127 | memset(g_light_state.output, 0, g_light_state.channels); |
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| 128 | memset(g_light_state.outputchanges, 0, g_light_state.channels); |
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| 129 | memset(g_light_state.events, 0, sizeof(g_light_state.events)); |
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[5920] | 130 | |
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| 131 | g_light_state.eventsqueuelen = 0; |
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[1966] | 132 | |
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| 133 | return 0; |
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| 134 | } |
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| 135 | |
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[5980] | 136 | // called at end of mainloop. |
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[1966] | 137 | int light_reinit(void) { |
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| 138 | if ( g_light_state.changes == NULL ) |
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| 139 | return -1; |
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| 140 | |
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| 141 | memset(g_light_state.changes, 0, g_light_state.channels); |
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[5920] | 142 | memset(g_light_state.events, 0, sizeof(g_light_state.events)); |
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| 143 | |
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| 144 | g_light_state.eventsqueuelen = 0; |
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[1818] | 145 | |
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| 146 | return 0; |
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| 147 | } |
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| 148 | |
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[5980] | 149 | // called at mid of mainloop. |
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[1818] | 150 | int light_update(void) { |
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[5980] | 151 | uint8_t * tmp; |
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| 152 | unsigned int c; |
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| 153 | |
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| 154 | // swap buffers: |
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| 155 | // after that step we have the old values in outputchanges and output is a fresh buffer. |
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| 156 | tmp = g_light_state.outputchanges; |
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| 157 | g_light_state.outputchanges = g_light_state.output; |
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| 158 | g_light_state.output = tmp; |
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| 159 | |
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| 160 | // copy data for filters: |
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| 161 | memcpy(g_light_state.output, g_light_state.state, g_light_state.channels); |
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| 162 | |
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| 163 | // TODO: next run filters |
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| 164 | |
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| 165 | // calculate diffrence: |
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| 166 | // after this step we have only teh changes in the outputchanges array. |
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| 167 | for (c = 0; c < g_light_state.channels; c++) |
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| 168 | g_light_state.outputchanges[c] ^= g_light_state.output[c]; |
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| 169 | |
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[1818] | 170 | return 0; |
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| 171 | } |
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| 172 | |
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[1821] | 173 | int light_check_stream (int id) { |
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[1822] | 174 | struct roar_stream * s; |
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| 175 | struct roar_stream_server * ss; |
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[1823] | 176 | char buf[512]; |
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[5917] | 177 | int i; |
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[1822] | 178 | |
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| 179 | if ( g_streams[id] == NULL ) |
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| 180 | return -1; |
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| 181 | |
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| 182 | ROAR_DBG("light_check_stream(id=%i) = ?", id); |
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| 183 | |
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| 184 | s = ROAR_STREAM(ss = g_streams[id]); |
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| 185 | |
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[1823] | 186 | switch (s->info.codec) { |
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| 187 | case ROAR_CODEC_DMX512: |
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| 188 | if ( stream_vio_s_read(ss, buf, 512) != 512 ) { |
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| 189 | streams_delete(id); |
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| 190 | return -1; |
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| 191 | } |
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| 192 | |
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[1967] | 193 | for (i = 0; i < (g_light_state.channels < 512 ? g_light_state.channels : 512); i++) { |
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[5706] | 194 | __set_channel(i, buf[i]); |
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[1967] | 195 | } |
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| 196 | // memcpy(g_light_state.state, buf, g_light_state.channels < 512 ? g_light_state.channels : 512); |
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[1823] | 197 | |
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[2509] | 198 | s->pos = ROAR_MATH_OVERFLOW_ADD(s->pos, 1); |
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| 199 | |
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[1823] | 200 | return 0; |
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| 201 | break; |
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[1965] | 202 | case ROAR_CODEC_ROARDMX: |
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[2055] | 203 | ROAR_DBG("light_check_stream(id=%i): Codec: RoarDMX", id); |
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[5917] | 204 | if ( cf_light_roardmx_read(id, ss) == -1 ) { |
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| 205 | streams_delete(id); // simply drop the client on error. |
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[1965] | 206 | return -1; |
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| 207 | } |
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| 208 | break; |
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[1823] | 209 | default: |
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| 210 | streams_delete(id); |
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| 211 | return -1; |
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| 212 | } |
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| 213 | |
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[1821] | 214 | return 0; |
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| 215 | } |
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| 216 | |
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[5917] | 217 | static inline int light_send_stream_dmx512 (int id, struct roar_stream * s, struct roar_stream_server * ss) { |
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[5918] | 218 | size_t chans = g_light_state.channels; |
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[5917] | 219 | uint8_t buf[512]; |
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| 220 | register uint8_t * bufptr; |
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| 221 | |
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| 222 | if ( chans > 512 ) |
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| 223 | chans = 512; |
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| 224 | |
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| 225 | if ( chans == 512 ) { |
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[5980] | 226 | bufptr = g_light_state.output; |
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[5917] | 227 | } else { |
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| 228 | memset(buf, 0, 512); |
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[5980] | 229 | memcpy(buf, g_light_state.output, chans); |
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[5917] | 230 | bufptr = buf; |
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| 231 | } |
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| 232 | |
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| 233 | if ( stream_vio_s_write(ss, bufptr, 512) != 512 ) { |
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| 234 | streams_delete(id); |
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| 235 | return -1; |
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| 236 | } |
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| 237 | |
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| 238 | s->pos = ROAR_MATH_OVERFLOW_ADD(s->pos, 1); |
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| 239 | |
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| 240 | return 0; |
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| 241 | } |
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| 242 | |
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[1821] | 243 | int light_send_stream (int id) { |
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[1822] | 244 | struct roar_stream * s; |
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| 245 | struct roar_stream_server * ss; |
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| 246 | |
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| 247 | if ( g_streams[id] == NULL ) |
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| 248 | return -1; |
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| 249 | |
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[1823] | 250 | ROAR_DBG("light_send_stream(id=%i) = ?", id); |
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[1822] | 251 | |
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| 252 | s = ROAR_STREAM(ss = g_streams[id]); |
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| 253 | |
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| 254 | switch (s->info.codec) { |
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| 255 | case ROAR_CODEC_DMX512: |
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[5917] | 256 | return light_send_stream_dmx512(id, s, ss); |
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[1822] | 257 | break; |
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[1968] | 258 | case ROAR_CODEC_ROARDMX: |
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[5917] | 259 | return cf_light_roardmx_write(id, ss); |
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[1968] | 260 | break; |
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[1822] | 261 | default: |
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| 262 | streams_delete(id); |
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| 263 | return -1; |
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| 264 | } |
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| 265 | |
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[1821] | 266 | return 0; |
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| 267 | } |
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| 268 | |
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[5706] | 269 | int light_dmxchannel_get(size_t index) { |
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| 270 | if ( (size_t)g_light_state.channels <= index ) { |
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| 271 | roar_err_set(ROAR_ERROR_NOENT); |
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| 272 | return -1; |
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| 273 | } |
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| 274 | |
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[5916] | 275 | return (int)(unsigned int)(uint8_t)g_light_state.state[index]; |
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[5706] | 276 | } |
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| 277 | |
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[5916] | 278 | int light_dmxchannel_set(size_t index, uint8_t val) { |
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[5706] | 279 | if ( (size_t)g_light_state.channels <= index ) { |
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| 280 | roar_err_set(ROAR_ERROR_NOENT); |
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| 281 | return -1; |
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| 282 | } |
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| 283 | |
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| 284 | __set_channel(index, val); |
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| 285 | return 0; |
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| 286 | } |
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| 287 | |
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[5935] | 288 | ssize_t light_dmxchannel_num(void) { |
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| 289 | if ( g_light_state.state == NULL ) { |
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| 290 | roar_err_set(ROAR_ERROR_BADSTATE); |
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| 291 | return -1; |
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| 292 | } |
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| 293 | |
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| 294 | return g_light_state.channels; |
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| 295 | } |
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| 296 | |
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| 297 | int light_dmxchannel_swap_universe(uint8_t * universe, size_t len) { |
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| 298 | uint8_t c; |
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| 299 | size_t i; |
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| 300 | |
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| 301 | if ( g_light_state.state == NULL ) { |
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| 302 | roar_err_set(ROAR_ERROR_BADSTATE); |
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| 303 | return -1; |
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| 304 | } |
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| 305 | |
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| 306 | if ( g_light_state.channels != len ) { |
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| 307 | roar_err_set(ROAR_ERROR_FAULT); |
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| 308 | return -1; |
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| 309 | } |
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| 310 | |
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| 311 | for (i = 0; i < len; i++) { |
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| 312 | c = g_light_state.state[i]; |
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| 313 | __set_channel(i, universe[i]); |
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| 314 | universe[i] = c; |
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| 315 | } |
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| 316 | |
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| 317 | return 0; |
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| 318 | } |
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| 319 | |
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[5920] | 320 | int light_dmxevent_add(const uint8_t * events, size_t len) { |
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| 321 | size_t i; |
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| 322 | |
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| 323 | if ( events == NULL ) { |
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| 324 | roar_err_set(ROAR_ERROR_FAULT); |
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| 325 | return -1; |
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| 326 | } |
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| 327 | |
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| 328 | if ( len > (sizeof(g_light_state.events) - g_light_state.eventsqueuelen) ) { |
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| 329 | roar_err_set(ROAR_ERROR_NOSPC); |
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| 330 | return -1; |
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| 331 | } |
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| 332 | |
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| 333 | for (i = 0; i < len; i++) { |
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| 334 | g_light_state.events[g_light_state.eventsqueuelen++] = events[i]; |
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| 335 | 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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| 336 | } |
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| 337 | |
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| 338 | return 0; |
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| 339 | } |
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| 340 | |
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| 341 | int light_dmxevent_read(const uint8_t ** events, size_t * len) { |
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| 342 | if ( events == NULL || len == NULL ) { |
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| 343 | roar_err_set(ROAR_ERROR_FAULT); |
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| 344 | return -1; |
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| 345 | } |
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| 346 | |
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| 347 | *events = g_light_state.events; |
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| 348 | *len = g_light_state.eventsqueuelen; |
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| 349 | |
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| 350 | return 0; |
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| 351 | } |
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| 352 | |
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[2495] | 353 | #endif |
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| 354 | |
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[1816] | 355 | //ll |
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