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function ptr = moglmalloc(nrbytes)
% ptr = moglmalloc(nrbytes) -- Allocate a memory buffer inside mogl.
% This function allocates an internal memory buffer inside mogl for use
% with OpenGL functions that use buffers for passing data forth and back
% between Matlab and OpenGL, e.g., glFeedbackBuffer() or glSelectBuffer().
%
% nrbytes = The number of bytes to allocate.
%
% On successfull allocation, ptr will be a handle for the memory buffer.
% You can think of ptr as a memory pointer in the C-language.
%
% moglmalloc()'ed memory buffers can be released - one by one - via
% moglfree(ptr), all at once via moglfreeall, and they are automatically
% released when moglcore is clear'ed via clear moglcore, clear mex or
% clear all.
%
% 16.05.2006 Written (MK)
% ---protected---
if nargin < 1 || isempty(nrbytes) || nrbytes <1
error('moglmalloc: Invalid or missing nrbytes size value for requested buffer.');
end;
ptr = moglcore('moglmalloc', nrbytes);
return;
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