64 lines
1.3 KiB
C++
64 lines
1.3 KiB
C++
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// STL includes
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#include <cstring>
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#include <cstdio>
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#include <iostream>
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// Linux includes
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#include <fcntl.h>
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#include <sys/ioctl.h>
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// hyperion local includes
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#include "LedDeviceSedu.h"
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struct FrameSpec
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{
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uint8_t id;
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size_t size;
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};
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LedDeviceSedu::LedDeviceSedu(const std::string& outputDevice, const unsigned baudrate) :
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LedRs232Device(outputDevice, baudrate),
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_ledBuffer(0)
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{
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// empty
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}
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int LedDeviceSedu::write(const std::vector<ColorRgb> &ledValues)
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{
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if (_ledBuffer.size() == 0)
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{
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std::vector<FrameSpec> frameSpecs{{0xA1, 256}, {0xA2, 512}, {0xB0, 768}, {0xB1, 1536}, {0xB2, 3072} };
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const unsigned reqColorChannels = ledValues.size() * sizeof(ColorRgb);
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for (const FrameSpec& frameSpec : frameSpecs)
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{
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if (reqColorChannels <= frameSpec.size)
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{
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_ledBuffer.clear();
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_ledBuffer.resize(frameSpec.size + 3, 0);
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_ledBuffer[0] = 0x5A;
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_ledBuffer[1] = frameSpec.id;
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_ledBuffer.back() = 0xA5;
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break;
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}
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}
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if (_ledBuffer.size() == 0)
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{
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Warning(_log, "More rgb-channels required then available");
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return -1;
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}
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}
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memcpy(_ledBuffer.data()+2, ledValues.data(), ledValues.size() * sizeof(ColorRgb));
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return writeBytes(_ledBuffer.size(), _ledBuffer.data());
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}
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int LedDeviceSedu::switchOff()
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{
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memset(_ledBuffer.data()+2, 0, _ledBuffer.size()-3);
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return writeBytes(_ledBuffer.size(), _ledBuffer.data());
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}
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