本文整理汇总了C++中ofPixels_::getPixelIndex方法的典型用法代码示例。如果您正苦于以下问题：C++ ofPixels_::getPixelIndex方法的具体用法？C++ ofPixels_::getPixelIndex怎么用？C++ ofPixels_::getPixelIndex使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ofPixels_的用法示例。
在下文中一共展示了ofPixels_::getPixelIndex方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: selectBitImageMode
std::size_t DefaultBitImageCommands::selectBitImageMode(const ofPixels_<unsigned char>& binaryPixels,
BaseCodes::PrintResolution printResolution)
{
// width = nL + (nH * 256)
// nH is the HIGH part of the WIDTH VALUE.
// nL is the LOW part of the WIDTH VALUE.
// nH will always be 0 for values less that 256 (1 byte)
uint8_t nH = getHighByte(binaryPixels.getWidth());
uint8_t nL = getLowByte(binaryPixels.getWidth());
std::vector<uint8_t> buffer;
buffer.push_back(BaseCodes::ESC);
buffer.push_back('*');
buffer.push_back(printResolution);
buffer.push_back(nL);
buffer.push_back(nH);
uint8_t currentByte = 0;
int bitIndex = 0;
for(int x = 0; x < binaryPixels.getWidth(); ++x)
{
currentByte = 0;
bitIndex = 0;
for(int y = 0; y < binaryPixels.getHeight(); ++y)
{
bool binaryValue = binaryPixels[binaryPixels.getPixelIndex(x,y)] < ofColor_<unsigned char>::limit() / 2;
currentByte |= binaryValue << (7 - bitIndex);
bitIndex++;
if(8 == bitIndex)
{
buffer.push_back(currentByte);
currentByte = 0;
bitIndex = 0;
}
}
}
return writeBytes(buffer);
}