changes

qt-embedded-2.3.8.tar.gz源码

          - a transform can be specified for a face through FT_Set_Transform.
            this transform is applied by FT_Load_Glyph to scalable glyph images
            (i.e. NOT TO BITMAPS) before the function returns, unless the
            bit flag FT_LOAD_IGNORE_TRANSFORM was set in the load flags..


          - once a glyph image has been loaded, it can be directly converted to
            a bitmap by using the new FT_Render_Glyph function. Note that this
            function takes the glyph image from the glyph slot, and converts
            it to a bitmap whose properties are returned in "face.glyph.bitmap",
            "face.glyph.bitmap_left" and "face.glyph.bitmap_top". The original
            native image might be lost after the conversion.


          - when using the new bit flag FT_LOAD_RENDER, the FT_Load_Glyph
            and FT_Load_Char functions will call FT_Render_Glyph automatically
            when needed.




  - reformated all modules source code in order to get rid of the basic
    data types redifinitions (i.e. "TT_Int" instead of "FT_Int", "T1_Fixed"
    instead of "FT_Fixed"). Hence the format-specific prefixes like "TT_",
    "T1_", "T2_" and "CID_" are only used for relevant structures..

============================================================================
OLD CHANGES FOR BETA 7

  - bug-fixed the OpenType/CFF parser. It now loads and displays my two
    fonts nicely, but I'm pretty certain that more testing is needed :-)

  - fixed the crummy Type 1 hinter, it now handles accented characters
    correctly (well, the accent is not always well placed, but that's
    another problem..)

  - added the CID-keyed Type 1 driver in "src/cid". Works pretty well for
    only 13 Kb of code ;-) Doesn't read AFM files though, nor the really
    useful CMAP files..

  - fixed two bugs in the smooth renderer (src/base/ftgrays.c). Thanks to
    Boris Letocha for spotting them and providing a fix..

  - fixed potential "divide by zero" bugs in ftcalc.c.. my god..

  - added source code for the OpenType/CFF driver (still incomplete though..)

  - modified the SFNT driver slightly to perform more robust header
    checks in TT_Load_SFNT_Header. This prevents certain font files
    (e.g. some Type 1 Multiple Masters) from being incorrectly "recognized"
    as TrueType font files..

  - moved a lot of stuff from the TrueType driver to the SFNT module,
    this allows greater code re-use between font drivers (e.g. TrueType,
    OpenType, Compact-TrueType, etc..)

  - added a tiny segment cache to the SFNT Charmap 4 decoder, in order
    to minimally speed it up..

  - added support for Multiple Master fonts in "type1z". There is also
    a new file named <freetype/ftmm.h> which defines functions to
    manage them from client applications.

    The new file "src/base/ftmm.c" is also optional to the engine..

  - various formatting changes (e.g. EXPORT_DEF -> FT_EXPORT_DEF) +
    small bug fixes in FT_Load_Glyph, the "type1" driver, etc..

  - a minor fix to the Type 1 driver to let them apply the font matrix
    correctly (used for many oblique fonts..)

  - some fixes for 64-bit systems (mainly changing some FT_TRACE calls
    to use %p instead of %lx).. Thanks to Karl Robillard

  - fixed some bugs in the sbit loader (src/base/sfnt/ttsbit.c) + added
    a new flag, FT_LOAD_CROP_BITMAP to query that bitmaps be cropped when
    loaded from a file (maybe I should move the bitmap cropper to the
    base layer ??).

  - changed the default number of gray levels of the smooth renderer to
    256 (instead of the previous 128). Of course, the human eye can't
    see any difference ;-)

  - removed TT_MAX_SUBGLYPHS, there is no static limit on the number of
    subglyphs in a TrueType font now..

=============================================================================
OLD CHANGES 16 May 2000

  - tagged "BETA-6" in the CVS tree. This one is a serious release candidate
    even though it doesn't incorporate the auto-hinter yet..

  - various obsolete files were removed, and copyright header updated

  - finally updated the standard raster to fix the monochrome rendering bug
    + re-enable support for 5-gray levels anti-aliasing (suck, suck..)

  - created new header files, and modified sources accordingly:

       <freetype/fttypes.h>           - simple FreeType types, without the API
       <freetype/internal/ftmemory.h> - definition of memory-management macros

  - added the "DSIG" (OpenType Digital Signature) tag to <freetype/tttags.h>

  - light update/cleaning of the build system + changes to the sources in
    order to get rid of _all_ compiler warnings with three compilers, i.e:

      gcc with "-ansi -pedantic -Wall -W", Visual C++ with "/W3 /WX"
      and LCC

     IMPORTANT NOTE FOR WIN32-LCC USERS:
     |
     |  It seems the C pre-processor that comes with LCC is broken, it
     |  doesn't recognize the ANSI standard directives # and ## correctly
     |  when one of the argument is a macro. Also, something like:
     |
     |     #define F(x)  print##x
     |
     |     F(("hello"))
     |
     |  will get incorrectly translated to:
     |
     |     print "hello")
     |
     |  by its pre-processor. For this reason, you simply cannot build
     |  FreeType 2 in debug mode with this compiler..


  - yet another massive grunt work. I've changed the definition of the
    EXPORT_DEF, EXPORT_FUNC, BASE_DEF & BASE_FUNC macros. These now take
    an argument, which is the function's return value type.

    This is necessary to compile FreeType as a DLL on Windows and OS/2.
    Depending on the compiler used, a compiler-specific keyword like __export
    or __system must be placed before (VisualC++) or after (BorlandC++)
    the type..

    Of course, this needed a lot of changes throughout the source code
    to make it compile again... All cleaned up now, apparently..

    Note also that there is a new EXPORT_VAR macro defined to allow the
    _declaration_ of an exportable public (constant) variable. This is the
    case of the raster interfaces (see ftraster.h and ftgrays.h), as well
    as each module's interface (see sfdriver.h, psdriver.h, etc..)

  - new feature: it is now possible to pass extra parameters to font
                 drivers when creating a new face object. For now, this
                 capability is unused. It could however prove to be useful
                 in a near future..

      the FT_Open_Args structure was changes, as well as the internal
      driver interface (the specific "init_face" module function has now
      a different signature).

  - updated the tutorial (not finished though).
  - updated the top-level BUILD  document

  - fixed a potential memory leak that could occur when loading embedded
    bitmaps.

  - added the declaration of FT_New_Memory_Face in <freetype/freetype.h>, as
    it was missing from the public header (the implementation was already
    in "ftobjs.c").

  - the file <freetype/fterrors.h> has been seriously updated in order to
    allow the automatic generation of error message tables. See the comments
    within it for more information.

  - major directory hierarchy re-organisation. This was done for two things:

      * first, to ease the "manual" compilation of the library by requiring
        at lot less include paths :-)

      * second, to allow external programs to effectively access internal
        data fields. For example, this can be extremely useful if someone
        wants to write a font producer or a font manager on top of FreeType.

    Basically, you should now use the 'freetype/' prefix for header inclusion,
    as in:

        #include <freetype/freetype.h>
        #include <freetype/ftglyph.h>

    Some new include sub-directories are available:

     a. the "freetype/config" directory, contains two files used to
        configure the build of the library. Client applications should
        not need to look at these normally, but they can if they want.

        #include <freetype/config/ftoption.h>
        #include <freetype/config/ftconfig.h>

     b. the "freetype/internal" directory, contains header files that
        describes library internals. These are the header files that were
        previously found in the "src/base" and "src/shared" directories.


    As usual, the build system and the demos have been updated to reflect
    the change..

    Here's a layout of the new directory hierarchy:

    TOP
      include/
         freetype/
            freetype.h
            ...
            config/
              ftoption.h
              ftconfig.h
              ftmodule.h

            internal/
              ftobjs.h
              ftstream.h
              ftcalc.h
              ...

      src/
         base/
            ...

         sfnt/
         psnames/
         truetype/
         type1/
         type1z/


    Compiling a module is now much easier, for example, the following should
    work when in the TOP directory on an ANSI build:

       gcc -c -I./include -I./src/base src/base/ftbase.c
       gcc -c -I./include -I./src/sfnt src/sfnt/sfnt.c
       etc..

    (of course, using -Iconfig/<system> if you provide system-specific
     configuration files).


  - updated the structure of FT_Outline_Funcs in order to allow
    direct coordinate scaling within the outline decomposition routine
    (this is important for virtual "on" points with TrueType outlines)
    + updates to the rasters to support this..

  - updated the OS/2 table loading code in "src/sfnt/ttload.c" in order
    to support version 2 of the table (see OpenType 1.2 spec)

  - created "include/tttables.h" and "include/t1tables.h" to allow
    client applications to access some of the SFNT and T1 tables of a
    face with a procedural interface (see FT_Get_Sfnt_Table())
    + updates to internal source files to reflect the change..

  - some cleanups in the source code to get rid of warnings when compiling
    with the "-Wall -W -ansi -pedantic" options in gcc.

  - debugged and moved the smooth renderer to "src/base/ftgrays.c" and
    its header to "include/ftgrays.h"

  - updated TT_MAX_SUBGLYPHS to 96 as some CJK fonts have composites with
    up to 80 sub-glyphs !! Thanks to Werner

================================================================================
OLD CHANGES - 14-apr-2000

  - fixed a bug in the TrueType glyph loader that prevented the correct
    loading of some CJK glyphs in mingli.ttf

  - improved the standard Type 1 hinter in "src/type1"

  - fixed two bugs in the experimental Type 1 driver in "src/type1z"
    to handle the new XFree86 4.0 fonts (and a few other ones..)

  - the smooth renderer is now complete and supports sub-banding
    to render large glyphs at high speed. However, it is still located
    in "demos/src/ftgrays.c" and should move to the library itself
    in the next beta.. NOTE: The smooth renderer doesn't compile in
    stand-alone mode anymore, but this should be fixed RSN..

  - introduced convenience functions to more easily deal with glyph
    images, see "include/ftglyph.h" for more details, as well as the
    new demo program named "demos/src/ftstring.c" that demonstrates
    its use

  - implemented FT_LOAD_NO_RECURSE in both the TrueType and Type 1
    drivers (this is required by the auto-hinter to improve its results).

  - changed the raster interface, in order to allow client applications
    to provide their own span-drawing callbacks. However, only the
    smooth renderer supports this. See "FT_Raster_Params" in the
    file "include/ftimage.h"

  - fixed a small bug in FT_MulFix that caused incorrect transform
    computation !!

  - Note: The tutorial is out-of-date, grumpf.. :-(

================================================================================
OLD CHANGES - 12-mar-2000

  - changed the layout of configuration files : now, all ANSI configuration
    files are located in "freetype2/config". System-specific over-rides
    can be placed in "freetype2/config/<system>".

  - moved all configuration macros to "config/ftoption.h"

  - improvements in the Type 1 driver with AFM support

  - changed the fields in the FT_Outline structure : the old "flags"
    array is re-named "tags", while all ancient flags are encoded into
    a single unsigned int named "flags".

  - introduced new flags in FT_Outline.flags (see ft_outline_.... enums in
    "ftimage.h").

  - changed outline functions to "FT_Outline_<action>" syntax

  - added a smooth anti-alias renderer to the demonstration programs
  - added Mac graphics driver (thanks Just)

  - FT_Open_Face changed in order to received a pointer to a FT_Open_Args
    descriptor..

  - various cleanups, a few more API functions implemented (see FT_Attach_File)

  - updated some docs

================================================================================
OLD CHANGES - 22-feb-2000

  - introduced the "psnames" module. It is used to:

      o convert a Postscript glyph name into the equivalent Unicode
        character code (used by the Type 1 driver(s) to synthetize
        on the fly a Unicode charmap).