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Update LedDeviceAPA102.cpp
Problem with endFrame was not only endFrameSize, but ledValue index too Former-commit-id: cc14e9d440a1d27f6a51c18f92aeba1f438c9c01
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@ -3,6 +3,7 @@
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#include <cstring>
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#include <cstdio>
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#include <iostream>
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#include <algorithm>
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// Linux includes
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#include <fcntl.h>
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@ -21,14 +22,14 @@ LedDeviceAPA102::LedDeviceAPA102(const std::string& outputDevice, const unsigned
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int LedDeviceAPA102::write(const std::vector<ColorRgb> &ledValues)
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{
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const unsigned int startFrameSize = 4;
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const unsigned int endFrameSize = (ledValues.size() + 63) / 64 * 4;
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const unsigned int endFrameSize = std::max<unsigned int>(((ledValues.size() + 15) / 16), 4);
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const unsigned int mLedCount = (ledValues.size() * 4) + startFrameSize + endFrameSize;
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if(_ledBuffer.size() != mLedCount){
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_ledBuffer.resize(mLedCount, 0x00);
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}
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for (unsigned iLed=1; iLed<=ledValues.size(); ++iLed) {
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const ColorRgb& rgb = ledValues[iLed];
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const ColorRgb& rgb = ledValues[iLed-1];
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_ledBuffer[iLed*4] = 0xFF;
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_ledBuffer[iLed*4+1] = rgb.red;
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_ledBuffer[iLed*4+2] = rgb.green;
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