%Copyright (c) 2012, Stanford University
%All rights reserved.
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%Redistribution and use in source and binary forms, with or without
%modification, are permitted provided that the following conditions are met:
%    * Redistributions of source code must retain the above copyright
%      notice, this list of conditions and the following disclaimer.
%    * Redistributions in binary form must reproduce the above copyright
%      notice, this list of conditions and the following disclaimer in the
%      documentation and/or other materials provided with the distribution.
%    * Neither the name of the <organization> nor the
%      names of its contributors may be used to endorse or promote products
%      derived from this software without specific prior written permission.
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%THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
%ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
%WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
%DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
%DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
%(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
%LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
%ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
%(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
%SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

% This code is written by Jiquan Ngiam (http://cs.stanford.edu/~jngiam/)

function netconfig = stack2netconfig(stack)
if numel(stack) == 0
    netconfig.inputsize = 0;
    netconfig.layersizes = {};
else
    netconfig.inputsize = size(stack{1}.w, 2);
    netconfig.layersizes = {};
    for d = 1:numel(stack)
        netconfig.layersizes = [netconfig.layersizes ; size(stack{d}.w,1)];
        
        % from cstack2netconfig
        fns = fieldnames(stack{d});
        for n = 1:numel(fns)
            fn = fns(n); fn = fn{1};
            if ~strcmp(fn, 'w') && ~strcmp(fn, 'b')
                netconfig.stackinfo{d}.(fn) = stack{d}.(fn);
            end
        end
    end
end
end
