How to calculate the wavelet coefficients of DWT when using sliding window?

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afef 2017-8-14

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https://ww2.mathworks.cn/matlabcentral/answers/352679-how-to-calculate-the-wavelet-coefficients-of-dwt-when-using-sliding-window

Hi ,i used a c code for DWt(Db4 )to get the wavelet coefficients but my input signal is to large [2560] and i implement this code in FPGA (XILINX ZC702) which was stuck in the middle of the code. So to reduce the volume of data i used a sliding window of length =w and then i calculate the wavelet coefficient of each sliding window . But i don't know how to get the result of this all this coefficients of all the sliding window so of all the signal ? is it a sommation of all this coefficients or what ?