file: expose block size constant; always round user transfers up
tex: transform() now receives what to change, not what to achieve.
tex*: encoding works with DynArray+VFS backend
GameSetup: free g_BuildingPlacer to avoid mem leak.
fixed some warnings+bugs.
This was SVN commit r2679.
tex.cpp now has loader API and codec support routines.
provide for codecs "transforming" the image; this allows e.g.
decompressing DDS, which is currently done in ogl code (but belongs
here)
This was SVN commit r2648.