[Bf-committers] TIFF support - submitted patch #2995
j.merritt at pgrad.unimelb.edu.au
Wed Sep 7 13:12:38 CEST 2005
Ton Roosendaal wrote:
> Or, would it be possible to dynamically link with it, like for yafray
> or quicktime now, based on dlopen linking (so no dependency)...?
I can see Yafray using the PIL_dynlib_* functions (Blender's wrappers
around dlopen() and friends), but it doesn't look like the QuickTime
stuff does. It looks like QuickTime inclusion is controlled purely by
the build system.
This might be a stupid question, but: How is QuickTime dynamically
loaded? The only thing I can think of is that perhaps QuickTime itself
contains a small "static stub" library that will dynamically load the
real library and hook-up all the symbols at run time. ... Kind of like a
shared library that's allowed to fail. Is that what's going on? If so,
is there any way to do this automatically with, say, libtiff? :-)
Or is this just confusion between the terms "dynamic library" and
Dynamic library: loaded with dlopen() at some point during runtime; *.so
may be optional.
Shared library: set up at compile time; program fails to run without
access to the *.so.
It shouldn't be too much effort to dynamically load the required
functions from libtiff, using Blender's PIL_dynlib_* functions. If this
is the way to do it, I'll hopefully have the patch for that finished
before the end of next weekend.
PS - I found this documentation on libraries:
Do people know of a better resource?
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