diff options
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 14 |
1 files changed, 7 insertions, 7 deletions
@@ -2,9 +2,9 @@ [base] Update the overflow protection bit. - The recent optimizations of CORDIC iterations drastically reduce - the expansion factor. The vector components with MSB of 29 are now - safe from overflow. + The recent optimizations of CORDIC iterations drastically reduce the + expansion factor. Vector components with MSB of 29 are now safe + from overflow. * src/base/fttrigon.c (FT_TRIG_SAFE_MSB): New macro. (ft_trig_prenorm): Use it and remove dead code. @@ -264,7 +264,7 @@ The dot product between freeVector and projVector or cosine of the angle between these FT_F2Dot14 unit vectors used to be scaled up by 4 and routinely occupied 32 bits in an FT_Long field F_dot_P. - This patch scales the value down by 2^14 instead, which simplifies + This patch scales the value down by 2^14 instead, which simplifies its use throughout the bytecode interpreter. This does not lead to the loss of precision because the lower bits @@ -277,7 +277,7 @@ Besides code simplification, this change can lead to better performance when FT_MulDiv with the scaled-down F_dot_P is less likely to use the costly 64-bit path. We are not changing the type - of F_dot_P to FT_F2Dot14 at this point. + of F_dot_P to FT_F2Dot14 at this point. * src/truetype/ttinterp.c (Compute_Funcs): Scale F_dot_P down by 14 bits and modify its use accordingly. @@ -483,7 +483,7 @@ [truetype] Cheaper way to threshold angles between vectors. * src/truetype/ttinterp.c (Ins_ISECT): Thresholding tangent is a lot - cheaper than thresholding sine. + cheaper than thresholding sine. 2012-10-20 Werner Lemberg <wl@gnu.org> @@ -5520,7 +5520,7 @@ ---------------------------------------------------------------------------- -Copyright 2010-2012 by +Copyright 2010-2013 by David Turner, Robert Wilhelm, and Werner Lemberg. This file is part of the FreeType project, and may only be used, modified, |