[5917] | 1 | //codecfilter_roardmx.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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[5917] | 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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[5927] | 30 | static inline int __read_sset(int id, struct roar_stream_server * ss, struct roar_roardmx_message * mes) { |
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[5917] | 31 | uint16_t channel; |
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| 32 | uint8_t value; |
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[5927] | 33 | int i, c; |
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[5917] | 34 | |
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| 35 | // we ignore errors here at the moment as 0 not < -1 |
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[5927] | 36 | c = roar_roardmx_message_numchannels(mes); |
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[5917] | 37 | ROAR_DBG("light_check_stream(id=%i): Number of subframes: %u", id, c); |
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| 38 | |
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| 39 | for (i = 0; i < c; i++) { |
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[5927] | 40 | if ( roar_roardmx_message_get_chanval(mes, &channel, &value, i) == -1 ) |
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[5917] | 41 | return -1; |
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| 42 | |
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| 43 | if ( g_light_state.channels < channel ) { |
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| 44 | ROAR_WARN("light_check_stream(id=%i): Writing on non extisting DMX channel %u", id, channel); |
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| 45 | continue; |
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| 46 | } else { |
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| 47 | g_light_state.state[channel] = value; |
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| 48 | g_light_state.changes[channel] = 0xFF; // the channel changed |
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| 49 | } |
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| 50 | } |
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| 51 | |
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| 52 | return 0; |
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| 53 | } |
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| 54 | |
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[5927] | 55 | static inline int __read_events(int id, struct roar_stream_server * ss, struct roar_roardmx_message * mes) { |
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| 56 | const uint8_t * events; |
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| 57 | size_t len; |
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| 58 | |
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| 59 | (void)id, (void)ss; |
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| 60 | |
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| 61 | if ( roar_roardmx_message_get_events(mes, &events, &len) == -1 ) |
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| 62 | return -1; |
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| 63 | |
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| 64 | return light_dmxevent_add(events, len); |
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| 65 | } |
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| 66 | |
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| 67 | int cf_light_roardmx_read(int id, struct roar_stream_server * ss) { |
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| 68 | struct roar_roardmx_message mes; |
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| 69 | unsigned char type; |
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| 70 | |
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| 71 | if ( roar_roardmx_message_recv(&mes, &(ss->vio)) == -1 ) |
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| 72 | return -1; |
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| 73 | |
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| 74 | if ( roar_roardmx_message_get_type(&mes, &type) == -1 ) |
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| 75 | return -1; |
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| 76 | |
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| 77 | switch (type) { |
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| 78 | case ROAR_ROARDMX_TYPE_SSET: return __read_sset(id, ss, &mes); break; |
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| 79 | case ROAR_ROARDMX_TYPE_EVENT: return __read_events(id, ss, &mes); break; |
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| 80 | } |
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| 81 | |
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| 82 | roar_err_set(ROAR_ERROR_NSTYPE); |
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| 83 | return -1; |
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| 84 | } |
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| 85 | |
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| 86 | static inline int __write_events(int id, struct roar_stream_server * ss) { |
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| 87 | struct roar_roardmx_message mes; |
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| 88 | const uint8_t * events; |
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| 89 | size_t len; |
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| 90 | |
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| 91 | if ( light_dmxevent_read(&events, &len) == -1 ) |
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| 92 | return -1; |
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| 93 | |
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| 94 | // check if we need to send events at all: |
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| 95 | if ( len == 0 ) |
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| 96 | return 0; |
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| 97 | |
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| 98 | // ok, now let's build the message: |
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| 99 | if ( roar_roardmx_message_new_event(&mes) == -1 ) |
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| 100 | return -1; |
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| 101 | |
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| 102 | if ( roar_roardmx_message_add_events(&mes, events, len) == -1 ) |
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| 103 | return -1; |
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| 104 | |
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| 105 | // and send it: |
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| 106 | if ( roar_roardmx_message_send(&mes, &(ss->vio)) == -1 ) |
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| 107 | return -1; |
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| 108 | |
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| 109 | return 0; |
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| 110 | } |
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| 111 | |
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| 112 | static inline int __write_channels(int id, struct roar_stream_server * ss) { |
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[5917] | 113 | struct roar_roardmx_message mes; |
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| 114 | int have_message = 0; |
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| 115 | int i; |
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| 116 | |
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| 117 | for (i = 0; i < g_light_state.channels; i++) { |
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| 118 | if ( g_light_state.changes[i] ) { |
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| 119 | if ( !have_message ) |
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| 120 | if ( roar_roardmx_message_new_sset(&mes) == -1 ) |
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| 121 | return -1; |
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| 122 | |
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| 123 | have_message = 2; |
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| 124 | |
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| 125 | if ( roar_roardmx_message_add_chanval(&mes, i, g_light_state.state[i]) == -1 ) { |
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| 126 | if ( roar_roardmx_message_send(&mes, &(ss->vio)) == -1 ) |
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| 127 | return -1; |
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| 128 | |
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| 129 | if ( roar_roardmx_message_new_sset(&mes) == -1 ) |
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| 130 | return -1; |
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| 131 | |
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| 132 | have_message = 1; |
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| 133 | } |
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| 134 | } |
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| 135 | } |
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| 136 | |
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| 137 | if ( have_message == 2 ) |
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| 138 | if ( roar_roardmx_message_send(&mes, &(ss->vio)) == -1 ) |
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| 139 | return -1; |
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| 140 | |
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| 141 | return 0; |
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| 142 | } |
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| 143 | |
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[5927] | 144 | int cf_light_roardmx_write(int id, struct roar_stream_server * ss) { |
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| 145 | if ( __write_events(id, ss) == -1 ) |
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| 146 | return -1; |
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| 147 | |
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| 148 | if ( __write_channels(id, ss) == -1 ) |
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| 149 | return -1; |
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| 150 | |
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| 151 | return 0; |
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| 152 | } |
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| 153 | |
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[5917] | 154 | #endif |
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| 155 | |
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| 156 | //ll |
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