Merge "Fix Visualizer capture size reset in wraparound" into udc-qpr-dev

        deltaSamples = kMaxCaptureBufSize;

    }

    int32_t capturePoint;

    //capturePoint = (int32_t)mCaptureIdx - deltaSamples;

    int32_t capturePoint, captureSamples = mCaptureSamples;

    __builtin_sub_overflow((int32_t) mCaptureIdx, deltaSamples, &capturePoint);

    // a negative capturePoint means we wrap the buffer.

    if (capturePoint < 0) {

        if (size > mCaptureSamples) {

            size = mCaptureSamples;

        }

        // first part of two stages copy, capture to the end of buffer and reset the size/point

        result.insert(result.end(), &mCaptureBuf[kMaxCaptureBufSize + capturePoint],

                        &mCaptureBuf[kMaxCaptureBufSize + capturePoint + size]);

        mCaptureSamples -= size;

        captureSamples -= size;

        capturePoint = 0;

    }

    result.insert(result.end(), &mCaptureBuf[capturePoint],

                    &mCaptureBuf[capturePoint + mCaptureSamples]);

                  &mCaptureBuf[capturePoint + captureSamples]);

    mLastCaptureIdx = mCaptureIdx;

    return result;

}