Cinder: buffer data type conversions and processing

ci-buffer-conversions.cpp

string bufferToString( const cinder::Buffer& buffer )
{
	string s( static_cast<const char*>( buffer.getData() ) );
	if ( s.length() > buffer.getDataSize() ) {
		s.resize( buffer.getDataSize() );
	}
	return s;
}

uint8_t* bufferToUint8(const cinder::Buffer& buffer)
{
	uint8_t* pBuffer = reinterpret_cast<uint8_t*>( mBuffer.getData() );
	return pBuffer;
}

uint32_t* bufferToUint32(const cinder::Buffer& buffer)
{
	uint32_t* pBuffer = reinterpret_cast<uint32_t*>( mBuffer.getData() );	
	return pBuffer;
}

cinder::Buffer stringToBuffer( const string& value )
{
	cinder::Buffer buf( value.size() );
	buf.copyFrom( (char*)&value[ 0 ], value.size() );
	return buf;
}

void processBuffer(const cinder::Buffer& buffer)
{
	size_t numElements = mBuffer.getDataSize() / sizeof(uint8_t);
	uint8_t* pBuffer = reinterpret_cast<uint8_t*>( mBuffer.getData() );
	for(size_t i=0; i<numElements; ++i) {
    		uint8_t element = pBuffer[i]; // do something with each element
	}
}