protected void removeDataFromInputBuffer(int start, int count)
{
if (mInputDataSize >= start + count)
{
BinaryUtility.memmove(ref mInputBuffer, start, start + count, mInputDataSize - start - count);
mInputDataSize -= count;
}
}
protected bool receiveThread()
{
if (!isDeviceConnect())
{
return(true);
}
const int MaxRecvCount = 32;
if (mRecvBytes == null)
{
mRecvBytes = new byte[MaxRecvCount];
}
// 只接收23个字节,如果不是23个字节,则丢弃该数据
int readCount = mHIDDevice.read(ref mRecvBytes, 23);
if (readCount != 0)
{
BinaryUtility.memmove(ref mRecvBytes, 0, 1, MaxRecvCount - 1);
readCount -= 4;
// 去除第一个字节和最后3个字节
mInputBufferLock.waitForUnlock();
addDataToInputBuffer(mRecvBytes, readCount);
mInputBufferLock.unlock();
}
// 先同步发送列表
mSendPacketLock.waitForUnlock();
int count = mSendPacket.Count;
for (int i = 0; i < count; ++i)
{
mOutputBufferList.Add(mSendPacket[i].toBytes());
}
mSendPacket.Clear();
mSendPacketLock.unlock();
// 发送所有需要发送的数据
int sendCount = mOutputBufferList.Count;
for (int i = 0; i < sendCount; ++i)
{
if (mOutputBufferList[i] != null)
{
mHIDDevice.write(mOutputBufferList[i]);
}
}
mOutputBufferList.Clear();
return(true);
}
public void setRecordData(short[] data, int dataSize)
{
// 检测数据量是否正确
if (mBlockBufferSize != dataSize)
{
return;
}
// 由于缓冲区大小和每次获取的数据数量都是固定的,所以只要有数据就需要移动
// 将已有的数据移到缓冲区头部,然后将新的数据加入尾部
if (mAllPCMCount > 0)
{
BinaryUtility.memmove(mAllPCMData, 0, dataSize, mRecorderDataBlockSize - dataSize);
BinaryUtility.memcpy(mAllPCMData, data, mRecorderDataBlockSize - dataSize, 0, dataSize);
}
else
{
BinaryUtility.memset(mAllPCMData, (short)0, mRecorderDataBlockSize);
BinaryUtility.memcpy(mAllPCMData, data, 0, 0, dataSize);
mAllPCMCount = dataSize;
}
}