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42206ad86a
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Werner Lemberg 42206ad86a Improve scan conversion rules 4 and 6. 
Two new constraints are introduced to better identify a `stub' -- a
concept which is only vaguely described in the OpenType
specification.  The old code was too rigorous and suppressed more
pixel than it should.

  . The intersection of the two profiles with the scanline is less
    than a half pixel.  Code related to this was already present in
    the sources but has been commented out.

  . The endpoint of the original contour forming a profile has a
    distance (`overshoot') less than half a pixel to the scanline.

Note that the two additional conditions fix almost all differences
to the Windows rasterizer, but some problematic cases remain.

* src/raster/ftraster.c (Overshoot_Top, Overshoot_Bottom): New
macros for the `flags' field in the `TProfile' structure.
(IS_BOTTOM_OVERSHOOT, IS_TOP_OVERSHOOT): New macros.
(New_Profile, End_Profile): Pass overshoot flag as an argument and
set it accordingly.
Update callers.
(Vertical_Sweep_Drop, Horizontal_Sweep_Drop): Implement the two new
constraints.
2009-06-16 15:14:21 +02:00
builds Fix AC_CHECK_FT2. 2009-04-21 22:51:07 +02:00
devel ftnames.c -> ftsnames.c 2009-04-04 09:20:14 +02:00
docs Document recent changes to ftview. 2009-04-30 20:00:22 +02:00
include Position Independent Code (PIC) support in autofit module. 2009-04-05 18:23:38 +03:00
objs Minor change for testing purposes. 2006-05-09 08:31:39 +00:00
src Improve scan conversion rules 4 and 6. 2009-06-16 15:14:21 +02:00
.cvsignore Formatting. 2000-10-31 19:42:53 +00:00
autogen.sh Don't rely on GNU sed. 2009-01-06 21:00:47 +00:00
ChangeLog Improve scan conversion rules 4 and 6. 2009-06-16 15:14:21 +02:00
ChangeLog.20 Add one more example to the documentation of FT_Glyph_To_Bitmap. 2008-08-06 09:09:41 +00:00
ChangeLog.21 Formatting, copyright years. 2008-07-27 06:27:21 +00:00
ChangeLog.22 Formatting, copyright years. 2008-07-27 06:27:21 +00:00
configure Since FreeType uses `$(value ...)', we now need GNU make 3.80 or 2008-07-05 06:35:28 +00:00
Jamfile More preparations for 2.3.9 release. 2009-03-09 18:06:28 +00:00
Jamrules Add license. 2005-06-04 23:04:30 +00:00
Makefile * Makefile, *.mk: Use `?=' where appropriate. 2006-02-01 07:52:11 +00:00
modules.cfg Move FT_Get_FSType_Flags to a separate file. 2009-01-22 10:13:59 +00:00
README More preparations for 2.3.9 release. 2009-03-09 18:06:28 +00:00
README.CVS * autogen.sh, builds/unix/configure.raw, 2008-09-12 16:27:48 +00:00
version.sed Put version information into the configure script. Reported by Paul 2006-05-08 07:10:29 +00:00
vms_make.com typo 2007-02-12 14:35:15 +00:00

README 

  Special notes to Unix users
  ===========================

  Please  read  the file  `docs/UPGRADE.UNIX'.  It contains  important
  information regarding the installation  of FreeType on Unix systems,
  especially GNU based operating systems like GNU/Linux.

  FreeType 2's  library is called `libfreetype',  FreeType 1's library
  is called `libttf'.  They are *not* compatible!


  FreeType 2.3.9
  ==============

  Please   read   the  docs/CHANGES   file,   it  contains   IMPORTANT
  INFORMATION.

  Read the files `docs/INSTALL' for installation instructions.

  The FreeType 2 API reference is located in `docs/reference'; use the
  file   `ft2-doc.html'   as   the   top  entry   point.    Additional
  documentation is available as a separate package from our sites.  Go
  to

    http://download.savannah.gnu.org/releases/freetype/

  and download one of the following files.

    freetype-doc-2.3.9.tar.bz2
    freetype-doc-2.3.9.tar.gz
    ftdoc239.zip


  Bugs
  ====

  Please report bugs  by e-mail to `freetype-devel@nongnu.org'.  Don't
  forget to  send a  detailed explanation of  the problem --  there is
  nothing  worse than  receiving a  terse message  that only  says `it
  doesn't work'.

  Alternatively, you may submit a bug report at

    https://savannah.nongnu.org/bugs/?group=freetype


  Enjoy!


    The FreeType Team

----------------------------------------------------------------------

Copyright 2006, 2007, 2008, 2009 by
David Turner, Robert Wilhelm, and Werner Lemberg.

This  file is  part of  the FreeType  project, and  may only  be used,
modified,  and distributed  under the  terms of  the  FreeType project
license,  LICENSE.TXT.  By  continuing to  use, modify,  or distribute
this file you  indicate that you have read  the license and understand
and accept it fully.


--- end of README ---