84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/*
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dmx_universe.h
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Copyright (c) 2020 Kevin Matz (kevin.matz@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef DMX_UNIVERSE_H
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#define DMX_UNIVERSE_H
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#include <cstdint>
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#include <functional>
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#include <vector>
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#define E111_NULL_START 0
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// Table D1 - Reserved START Codes
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#define E111_ASC_TEXT_ASCII 23
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#define E111_ASC_TEST 85
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#define E111_ASC_TEXT_UTF8 144
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#define E111_ASC_MANUFACTURER 145
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#define E111_ASC_SIP 207
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// structure of DMX data
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typedef union {
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struct {
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uint8_t start_code;
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uint8_t slot[512]; // 0 index-origin!
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} __attribute__((packed));
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uint8_t data[513];
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} e111_universe_t;
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// forward declare the Univserse class
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class Universe;
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// register type for data users to subscribe callbacks
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typedef std::function<void(Universe *)> E111DataHandlerFunction;
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/*
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The Universe class
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ANSI E1.11 describes may things about moving data over
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serial EIA-485-A links. This class encapselates that data,
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regardless of how it was transmitted.
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*/
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class Universe {
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public:
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Universe();
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e111_universe_t * data() {
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return &data_;
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}
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bool setData(e111_universe_t *data);
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void onData(const E111DataHandlerFunction callback);
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uint32_t age(); // millis() since setData
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private:
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e111_universe_t data_;
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uint32_t time_;
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std::vector<E111DataHandlerFunction> callbacks_;
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};
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#endif // DMX_UNIVERSE_H
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