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Update LedDeviceAdalightApa102.cpp

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Former-commit-id: 2bbbb4756e6c3f8fe070ba73e63ce327e3f75ff4
This commit is contained in:
AEtHeLsYn 2015-10-30 20:08:16 +01:00
parent acc1a1b397
commit 9d004fa36e
1 changed files with 3 additions and 2 deletions
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5
libsrc/leddevice/LedDeviceAdalightApa102.cpp
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@ -3,6 +3,7 @@
#include <cstring> #include <cstring>
#include <cstdio> #include <cstdio>
#include <iostream> #include <iostream>
#include <algorithm>
// Linux includes // Linux includes
#include <fcntl.h> #include <fcntl.h>
@ -23,7 +24,7 @@ LedDeviceAdalightApa102::LedDeviceAdalightApa102(const std::string& outputDevice
int LedDeviceAdalightApa102::write(const std::vector<ColorRgb> & ledValues) int LedDeviceAdalightApa102::write(const std::vector<ColorRgb> & ledValues)
{ {
const unsigned int startFrameSize = 4; const unsigned int startFrameSize = 4;
const unsigned int endFrameSize = (ledValues.size() + 63) / 64 * 4; const unsigned int endFrameSize = std::max<unsigned int>(((ledValues.size() + 15) / 16), 4);
const unsigned int mLedCount = (ledValues.size() * 4) + startFrameSize + endFrameSize; const unsigned int mLedCount = (ledValues.size() * 4) + startFrameSize + endFrameSize;
if(_ledBuffer.size() != mLedCount){ if(_ledBuffer.size() != mLedCount){
_ledBuffer.resize(mLedCount, 0x00); _ledBuffer.resize(mLedCount, 0x00);
@ -36,7 +37,7 @@ int LedDeviceAdalightApa102::write(const std::vector<ColorRgb> & ledValues)
} }
for (unsigned iLed=1; iLed<=ledValues.size(); iLed++) { for (unsigned iLed=1; iLed<=ledValues.size(); iLed++) {
const ColorRgb& rgb = ledValues[iLed]; const ColorRgb& rgb = ledValues[iLed-1];
_ledBuffer[iLed*4+6] = 0xFF; _ledBuffer[iLed*4+6] = 0xFF;
_ledBuffer[iLed*4+1+6] = rgb.red; _ledBuffer[iLed*4+1+6] = rgb.red;
_ledBuffer[iLed*4+2+6] = rgb.green; _ledBuffer[iLed*4+2+6] = rgb.green;