Le samedi 13 février 2010 à 23:41 +0200, Ville Syrjälä a écrit : > On Sat, Feb 13, 2010 at 07:49:37PM +0100, Lionel Landwerlin wrote: > > The null system avoids dependency on a particular system (like fbdev, > > devmem, etc...) > > when you're writing a gfxdriver for relaying on proprietary interfaces, > > which can't be > > exposed in an opensource project. > > The behavior of this system is to answer "no" to any memory allocation > > request, so the > > requests are redirected to the gfxdriver which implements its own > > allocation system. > > > > Signed-off-by: Lionel Landwerlin <llandwer...@gmail.com> > > --- > > configure.in | 68 +++++++----- > > src/core/system.h | 7 +- > > src/misc/conf.c | 12 +- > > systems/Makefile.am | 10 ++- > > systems/null/Makefile.am | 38 +++++++ > > systems/null/null.c | 187 +++++++++++++++++++++++++++++++++ > > systems/null/null.h | 14 +++ > > systems/null/null_surface_pool.c | 211 > > ++++++++++++++++++++++++++++++++++++++ > > Why exactly do you need this dummy pool when it does nothing?
It's just a suggestion. Some people are working with proprietary source and non standard driver interfaces. None of the existing systems matches such interfaces. Instead of integrating a specific system in the DirectFB's sources (which can't be released anyway), we propose the following solution. In order to allocate video memory through non standard interfaces, we could rely on such "null" system that implicitly redirects the memory allocations requests to the next memory pool. Hopefully, the gfxdriver might have registred its own buffer allocation pool. > > > systems/null/surfacemanager.c | 97 +++++++++++++++++ > > systems/null/surfacemanager.h | 52 +++++++++ > > Nothing from these files is actually used so they should not exist at all. It has been done quickly by copying the devmem system. Depending or not people like the idea behind this patch, I will rework it. Thx a lot for reviewing the patch. Regards, -- Lionel Landwerlin _______________________________________________ directfb-dev mailing list directfb-dev@directfb.org http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev
