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Slight style changes to the pull of the P9813 device

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Former-commit-id: 77892a5cfbcc4793061d518a761931be26ef842b
This commit is contained in:
T. van der Zwan
2014-01-18 22:49:32 +00:00
parent cb59a0e951
commit fd6d247506
4 changed files with 38 additions and 28 deletions
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46
libsrc/leddevice/LedDeviceP9813.cpp
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@@ -13,44 +13,44 @@
LedDeviceP9813::LedDeviceP9813(const std::string& outputDevice, const unsigned baudrate) :
LedSpiDevice(outputDevice, baudrate, 0),
mLedCount(0)
_ledCount(0)
{
// empty
}
int LedDeviceP9813::write(const std::vector<ColorRgb> &ledValues)
{
mLedCount = ledValues.size();
if (_ledCount != ledValues.size())
{
_ledBuf.resize(ledValues.size() * 4 + 8, 0x00);
_ledCount = ledValues.size();
}
const unsigned dataLen = ledValues.size() * 4 + 8;
uint8_t data[dataLen];
uint8_t * dataPtr = _ledBuf.data();
for (const ColorRgb & color : ledValues)
{
*dataPtr++ = calculateChecksum(color);
*dataPtr++ = color.blue;
*dataPtr++ = color.green;
*dataPtr++ = color.red;
}
memset(data, 0x00, dataLen);
int j = 4;
for (unsigned i = 0; i < mLedCount; i++){
data[j++] = calculateChecksum(ledValues[i]);
data[j++] = ledValues[i].blue;
data[j++] = ledValues[i].green;
data[j++] = ledValues[i].red;
}
return writeBytes(dataLen, data);
return writeBytes(_ledBuf.size(), _ledBuf.data());
}
int LedDeviceP9813::switchOff()
{
return write(std::vector<ColorRgb>(mLedCount, ColorRgb{0,0,0}));
return write(std::vector<ColorRgb>(_ledCount, ColorRgb{0,0,0}));
}
const uint8_t LedDeviceP9813::calculateChecksum(const ColorRgb color)
uint8_t LedDeviceP9813::calculateChecksum(const ColorRgb & color) const
{
uint8_t res = 0;
uint8_t res = 0;
res |= (uint8_t)0x03 << 6;
res |= (uint8_t)(~(color.blue >> 6) & 0x03) << 4;
res |= (uint8_t)(~(color.green >> 6) & 0x03) << 2;
res |= (uint8_t)(~(color.red >> 6) & 0x03);
res |= (uint8_t)0x03 << 6;
res |= (uint8_t)(~(color.blue >> 6) & 0x03) << 4;
res |= (uint8_t)(~(color.green >> 6) & 0x03) << 2;
res |= (uint8_t)(~(color.red >> 6) & 0x03);
return res;
return res;
}