forked from minhngoc25a/freetype2
updated changes
This commit is contained in:
David Turner
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commit
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120
CHANGES
120
CHANGES
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@ -1,18 +1,126 @@
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LATEST CHANGES BETWEEN 2.0.2 and 2.0.1
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- changed the library header files inclusion scheme. Right now,
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a client application can do something like this:
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#include <ft2build.h> -- include build and setup configuration file
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#include FT_FREETYPE_H -- main API file
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#include FT_GLYPH_H -- abstract glyph image handling, etc..
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I. CHANGES TO THE MODULES / FONT DRIVERS:
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- THE TRUETYPE BYTECODE INTERPRETER IS NOW TURNED OFF, in order to
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avoid legal problems with the Apple patents. It seems that we
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mistakenly turned this option on in previous releases of the build.
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note that if you want to use the bytecode interpreter, in order to
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get high-quality TrueType rendering, you'll need to toggle by hand
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the definition of the TT_CONFIG_OPTION_BYTECODE_INTERPRETER macro
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in the file "include/freetype/config/ftoption.h"
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- The CFF driver has been improved by Tom Kacvinsky:
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* support for "seac" emulation
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* support for "dotsection"
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* support for retrieving glyph names through "FT_Get_Glyph_Name"
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The first two items are necessary to correctly a large number of
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Type 1 fonts converted to the CFF formats by Adobe Acrobat.
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- the Type 1 driver was also improved by Tom:
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* better EM size computation
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* better support for synthetic (transformed) fonts
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* the Type 1 driver returns the charstrings corresponding to
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each glyph in the "glyph->control_data" field after a call to
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"FT_Load_Glyph"
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- various other bugfixes, including the following:
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* fixed a nasty memory leak in the Type 1 driver
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* the autohinter and the pcf driver used static writable data
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when they shouldn't
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* many casts were added to make the code more 64-bits safe.
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it also now compiles on Windows XP 64-bits without warnings
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* some incorrect writable statics were removed in the "autohint"
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and "pcf" drivers. FT2 now compiles on Epoc again..
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II. CHANGES TO THE HIGH-LEVEL API
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- the library header files inclusion scheme has been changed. The old
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scheme looked like:
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#include <freetype/freetype.h>
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#include <freetype/ftglyph.h>
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#include <freetype/ftcache.h>
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#include <freetype/cache/ftimage.h>
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use:
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include FT_GLYPH_H
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#include FT_CACHE_H
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#include FT_CACHE_IMAGE_H
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NOTE THAT THE OLD INCLUSION SCHEME WILL STILL WORK WITH THIS RELEASE.
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HOWEVER, WE DON'T GUARANTEE THAT THIS WILL STILL BE TRUE IN THE NEXT
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ONE (A.K.A. FREETYPE 2.1)
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the file <ft2build.h> is used to define the header filename macros.
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The complete and commented list of macros is available in the API
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reference under the section name "Header File Macros" in Chapter I.
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- many, many comments have been added to the public source file in
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order to automatically generate the API Reference through the
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"docmaker.py" Python script.
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The latter has been updated to support the grouping of sections
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in chapters, and better index sort. See:
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http://www.freetype.org/freetype2/docs/reference/ft2-toc.html
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III. CHANGES TO THE BUILD PROCESS
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- if you're not building FreeType 2 with our own build system (i.e. with
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your own Makefiles or project files), you'll need to be aware that the
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build process as changed a little bit. Namely:
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- you don't need to put the "src" directory in the include path
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when compiling any FT2 component
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- instead, simply put the component's directory in the current
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include path.
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So, if you were doing something like:
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cc -c -Iinclude -Isrc src/base/ftbase.c
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change the line to:
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cc -c -Iinclude -Isrc/base src/base/ftbase.c
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If you were doing something like:
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cd src/base
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cc -c -I../../include -I.. ftbase.c
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change it to:
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cd src/base
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cc -c -I../../include ftbase.c
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- the build system has changed slightly when compiling by hand (either
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from the command line or from an IDE). You don't need to put the "src"
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directory in the include path anymore. Rather, place each component's
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path.. See INSTALL and "docs/BUILD" for details..
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=========================================================================
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LATEST CHANGES BETWEEN 2.0.1 and 2.0:
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14
TODO
14
TODO
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@ -2,11 +2,11 @@ Here is a list of items that need to be addressed in FreeType 2:
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* Add synthesized Unicode charmap processing to the CFF driver.
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* Investigate usage of casts and bit width of integer types used. The idea is
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to typedef FT_Fixed, FT_Long, FT_Int, etc. to use the appropriate built in
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integer types. This is so that we may avoid unnecessary explict typecasts
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and side affects inherent in implict casts. This is mostly an issue on
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platforms where long integers are 64 bits wide (instead of 32 bits wide).
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* Fix Visual C++ project file
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* Fix a bug in the TrueType driver: linear horizontal advances of composites
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are not returned properly.
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* Change the build system to work with the "Jam" tool instead of the
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terribly complex and error-prone GNU Makefiles we're currently using
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* Fix exact bbox calculation. The current code uses an iterative algorithm
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which can fail miserably.
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