699     mDataRead = 0;  in readQueue()
710     mDataRead = 0;  in reset()
717   bool isEmpty() const { return (mDataRead >= mDataSize); }  in isEmpty()
733     if (mDataRead + length > mDataSize) {  in beginCommand()
736       mDataRead--;  in beginCommand()
740     mCommandEnd = mDataRead + length;  in beginCommand()
748     } else if (mDataRead > mCommandEnd) {  in endCommand()
750       mDataRead = mCommandEnd;  in endCommand()
751     } else if (mDataRead < mCommandEnd) {  in endCommand()
753       mDataRead = mCommandEnd;  in endCommand()
762   uint32_t read() { return mData[mDataRead++]; }  in read()
766     memcpy(&val, &mData[mDataRead++], sizeof(val));  in readSigned()
772     memcpy(&val, &mData[mDataRead++], sizeof(val));  in readFloat()
783     memcpy(blob, &mData[mDataRead], size);  in readBlob()
785     mDataRead += numElements;  in readBlob()
786     mDataRead += (size - numElements * sizeof(uint32_t) != 0) ? 1 : 0;  in readBlob()
854   uint32_t mDataRead;  variable