forked from minhngoc25a/freetype2
updated comment explaining how to use project-specific
option (and module) files
This commit is contained in:
David Turner
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40da4e401b
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@ -1,7 +1,15 @@
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2001-10-25 David Turner <david@freetype.org>
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* include/freetype/config/ftoption.h: updated comment to explain
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precisely how to use project-specific macro definitions without
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modifying this file manually..
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2001-10-24 Tom Kacvinsky <tjk@ams.org>
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* builds/unix/ftsystem.c (FT_New_Memory): Added a missing `}'.
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2001-10-23 David Turner <david@freetype.org>
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* include/freetype/internal/ftmemory.h, src/base/ftdbgmem.c:
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73
docs/BUGS
73
docs/BUGS
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@ -31,6 +31,7 @@ AUTOHINT-NO-SBITS 13-09-2001 David always
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BAD-TT-RENDERING 12-09-2001 Paul Pedriana ?
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BAD-THIN-LINES 13-09-2001 David ?
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NOT-WINDOWS-METRICS 07-10-2001 David always
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ADVANCED-COMPOSITES 25-10-2001 George Williams always
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--------------------END-OF-OPENED-BUGS-TABLE----------------------------------
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@ -43,7 +44,8 @@ II. Table of closed bugs
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Identifier Date Closed by Closure date
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------------------------------------------------------------------------------
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BAD-TTNAMEID.H 12-09-2001 Antoine N/A
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BAD-T1-CHARMAP 15-06-2001 David 2.0.5
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BAD-UNIXXX-NAMES 30-07-2001 David 2.0.5
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--------------------END-OF-CLOSED-BUGS-TABLE----------------------------------
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@ -106,6 +108,7 @@ BAD-TT-RENDERING
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bytecode-hinted glyphs! Something seems to be really broken here!
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BAD-THIN-LINES
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It seems that the anti-aliased renderer in FreeType has problems rendering
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@ -113,6 +116,7 @@ BAD-THIN-LINES
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FT_Outline_Render() function.
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NOT-WINDOWS-METRICS
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FreeType doesn't always return the same metrics as Windows for ascender,
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@ -121,4 +125,71 @@ NOT-WINDOWS-METRICS
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rounding bug when computing the "x_scale" and "y_scale" values.
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BAD-T1-CHARMAP
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Type1 driver doesn't read "cacute" and "lslash" characters from iso8859-2
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charset. Those characters are mapped as MAC-one in glnames.py, so they
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cannot be shown in Adobe Type1 fonts.
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(this was due to a bug in the "glnames.py" script used to generate the
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table of glyph names in 'src/psaux/pstables.h')
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BAD-UNIXXX-NAMES
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Glyph names like uniXXXX are not recognized as they should be.
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It seems that code in psmodule.c for uniXXXX glyph names was
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never tested. The patch is very simple.
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(a simple bug that was left un-noticed due to the fact that I don't have
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any Postscript font that use this convention, unfortunately..)
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ADVANCED-COMPOSITES
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Provided by George Williams <pfaedit@users.sourceforge.net>:
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I notice that truetype/ttgload.c only supports Apple's
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definition of offsets for composit glyphs. Apple and
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Microsoft behave differently if there is a scale
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factor. OpenType defines some bits to disambiguate.
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(a problem in both 2.0.4 and 2.0.5)
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Apple says
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(http://fonts.apple.com/TTRefMan/RM06/Chap6glyf.html)
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that if flags&ARGS_ARE_XY is set then the offsets
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should be scaled by the scale factors (as you have
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done), but they also say something very cryptic about
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what happens when the component is rotated at 45°
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(which you do not support)-- See the "Important" note
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at the bottom.
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The old truetype spec from Microsoft did not mention
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this. The OpenType spec
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(http://www.microsoft.com/typography/otspec/glyf.htm,
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http://partners.adobe.com/asn/developer/opentype/glyf.html)
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efines two new bits to disambiguate:
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SCALED_COMPONENT_OFFSET 11
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Composite designed to have the component offset scaled
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(designed for Apple rasterizer)
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UNSCALED_COMPONENT_OFFSET 12
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Composite designed not to have the component offset
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scaled (designed for the Microsoft TrueType rasterizer)
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Perhaps you could add a load_flag to allow the user to
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define the default setting?
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David says:
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Wow, I was not even aware of this, it will probably take a little
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time to implement since I don't have any font that implement these
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"features", and also because I believe that we're running out of
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bits for "load_flag", some other way to set preferences is probably
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needed..
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=== end of file ===
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@ -30,17 +30,41 @@ FT_BEGIN_HEADER
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/* */
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/* USER-SELECTABLE CONFIGURATION MACROS */
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/* */
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/* These macros can be toggled by developers to enable or disable */
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/* certain aspects of FreeType. This is a default file, where all major */
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/* options are enabled. */
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/* this file contains the default configuration macro definitions for */
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/* a standard build of the FreeType library. There are three ways to */
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/* use this file to build project-specific versions of the library: */
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/* */
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/* Note that if some modifications are required for your build, we */
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/* advise you to put a modified copy of this file in your build */
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/* directory, rather than modifying it in-place. */
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/* - you can modify this file by hand, but this is not recommended */
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/* in cases where you'd like to build several versions of the */
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/* library from a single source directory */
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/* */
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/* The build directory is normally `freetype/builds/<system>' and */
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/* contains build or system-specific files that are included in */
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/* priority when building the library. */
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/* */
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/* - you can put a copy of this file in your build directory, more */
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/* precisely in "$BUILD/freetype/config/ftoption.h", where "$BUILD" */
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/* is the name of a directory that is included _before_ the */
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/* FreeType include path during compilation. */
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/* */
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/* the default FreeType Makefiles and Jamfiles use the build */
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/* directory "builds/<system>" by default, but you can easily change */
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/* that for your own projects */
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/* */
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/* */
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/* - copy the file <ft2build.h> to "$BUILD/ft2build.h" and modify */
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/* it slightly to pre-define the macro FT_CONFIG_OPTIONS_H used */
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/* to locate this file during the build. For example: */
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/* */
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/* #define FT_CONFIG_OPTIONS_H <myftoptions.h> */
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/* #include <freetype/config/ftheader.h> */
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/* */
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/* will use "$BUILD/myftoptions.h" instead of this file for macro */
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/* definitions. */
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/* */
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/* note also that you can similarly pre-define the macro */
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/* FT_CONFIG_MODULES_H used to locate the file listing the modules */
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/* that are statically linked to the library at compile time. */
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/* by default, this file is <freetype/config/ftmodule.h> */
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/* */
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/* we highly recommend using the third method whenever possible */
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/* */
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/*************************************************************************/
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@ -429,7 +453,8 @@ FT_BEGIN_HEADER
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/* */
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#undef T1_CONFIG_OPTION_NO_MM_SUPPORT
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/* */
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FT_END_HEADER
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