Promote the precision of generated brushes to 32-bit float, and
modify brush preview generation, and gimpbrushcore-loops, to handle
float brushes. This avoids posterization in large brushes.
Note that non-generated brushes are still uint8.
(cherry picked from commit 8ef1113dee)
2004-12-31 Sven Neumann <sven@gimp.org>
* tools/kernelgen.c: fixed rounding so that all brush kernels are
created with a constant sum of 256.
* app/paint/gimpbrushcore-kernels.h: regenerated.
* app/paint/gimpbrushcore.c (gimp_brush_core_subsample_mask): use
the constant defined un app/paint/gimpbrushcore-kernels.h. Should
give a tiny speedup.
