Commit Graph

28 Commits

Author SHA1 Message Date
David Turner c06aba285f updated the CHANGES file, plus a few fix in "ftstring" to
display monochrome glyphs too
2000-06-30 23:38:23 +00:00
David Turner 98258619df debugged the CFF driver. The "advance width" problem
was strictly unrelated to our previous worries, it was a
really simple bug in t2gload.c !!
2000-06-28 20:43:07 +00:00
David Turner 81bb4ad937 latest clean-ups..
The code compiles with NO WARNINGS with GCC and
Visual C++ (also with LCC minus debugging options)
2000-06-28 04:19:49 +00:00
David Turner 9d636b6d14 various cleanups to reduce compiler warnings
+ support for CID-keyed fonts in the CFF driver
(still some unexpected bugs though..)
2000-06-27 23:32:27 +00:00
David Turner f0df85ba2a - MAJOR INTERNAL REDESIGN:
A lot of internal modifications have been performed lately on the
    source in order to provide the following enhancements:

      - more generic module support:

        The FT_Module type is now defined to represent a handle to a given
        module. The file <freetype/ftmodule.h> contains the FT_Module_Class
        definition, as well as the module-loading public API

        The FT_Driver type is still defined, and still represents a pointer
        to a font driver. Note that FT_Add_Driver is replaced by FT_Add_Module,
        FT_Get_Driver by FT_Get_Module, etc..


      - support for generic glyph image types:

        The FT_Renderer type is a pointer to a module used to perform various
        operations on glyph image.

        Each renderer is capable of handling images in a single format
        (e.g. ft_glyph_format_outline). Its functions are used to:

           - transform an glyph image
           - render a glyph image into a bitmap
           - return the control box (dimensions) of a given glyph image


        The scan converters "ftraster.c" and "ftgrays.c" have been moved
        to the new directory "src/renderer", and are used to provide two
        default renderer modules.

        One corresponds to the "standard" scan-converter, the other to the
        "smooth" one.

        The current renderer can be set through the new function
        FT_Set_Renderer.

        The old raster-related function FT_Set_Raster, FT_Get_Raster and
        FT_Set_Raster_Mode have now disappeared, in favor of the new:

           FT_Get_Renderer
           FT_Set_Renderer

        see the file <freetype/ftrender.h> for more details..

        These changes were necessary to properly support different scalable
        formats in the future, like bi-color glyphs, etc..


      - glyph loader object:

        A new internal object, called a 'glyph loader' has been introduced
        in the base layer. It is used by all scalable format font drivers
        to load glyphs and composites.

        This object has been created to reduce the code size of each driver,
        as each one of them basically re-implemented its functionality.

        See <freetype/internal/ftobjs.h> and the FT_GlyphLoader type for
        more information..



      - FT_GlyphSlot had new fields:

        In order to support extended features (see below), the FT_GlyphSlot
        structure has a few new fields:

           linearHoriAdvance:  this field gives the linearly scaled (i.e.
                               scaled but unhinted) advance width for the glyph,
                               expressed as a 16.16 fixed pixel value. This
                               is useful to perform WYSIWYG text.

           linearVertAdvance:  this field gives the linearly scaled advance
                               height for the glyph (relevant in vertical glyph
                               layouts only). This is useful to perform
                               WYSIWYG text.

        Note that the two above field replace the removed "metrics2" field
        in the glyph slot.

           advance:   this field is a vector that gives the transformed
                      advance for the glyph. By default, it corresponds
                      to the advance width, unless FT_LOAD_VERTICAL_LAYOUT
                      was specified when calling FT_Load_Glyph or FT_Load_Char

           bitmap_left: this field gives the distance in integer pixels from
                        the current pen position to the left-most pixel of
                        a glyph image WHEN IT IS A BITMAP. It is only valid
                        when the "format" field is set to
                        "ft_glyph_format_bitmap", for example, after calling
                        the new function FT_Render_Glyph.

           bitmap_top:  this field gives the distance in integer pixels from
                        the current pen position (located on the baseline) to
                        the top-most pixel of the glyph image WHEN IT IS A
                        BITMAP. Positive values correspond to upwards Y.

           loader:  this is a new private field for the glyph slot. Client
                    applications should not touch it..


      - support for transforms and direct rendering in FT_Load_Glyph:

        Most of the functionality found in <freetype/ftglyph.h> has been
        moved to the core library. Hence, the following:

          - 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.
2000-06-22 00:17:42 +00:00
David Turner f9b8dec437 major reformatting of the modules source code in order to get
rid of most of the basic types redefinitions (i.e. FT_Int instead
of "FT_Int", etc..)

The format-specific prefixs like "TT_", "T1_", "T2_" & 'CID_"
are now only used in relevant structures..

fixed Werner's fix to t2gload.c :-)
other small bug fixes
2000-06-16 19:34:52 +00:00
David Turner 2b9be99c2a a simple commit for Beta 7, I have disabled tracing in
this commit, and will re-enable it later..
2000-06-07 23:41:17 +00:00
David Turner 04aa800ce9 added a CID-keyed font driver in "src/cid"
fixed two bugs in the smooth renderer
2000-06-01 03:27:48 +00:00
David Turner 4f99c3c423 fixed divide by zero bug
added CFF/OpenType driver source (not working for now)
2000-05-29 20:55:13 +00:00
David Turner 2e421319fc moved a lot of things from the TrueType driver to the SFNT
module (whose interface has changed, by the way)

This allows even more code re-use between TrueType and
OpenType formats..
2000-05-26 22:13:17 +00:00
David Turner 1118720679 finalised the multiple masters support
fixed some nasty little bugs too
2000-05-26 17:13:23 +00:00
David Turner f5dcdd5cfb minor fix to the Type1 driver(s) to apply the font matrix when
necessary..
2000-05-23 22:16:27 +00:00
David Turner 51179f0ae3 some fixes for 64-bit systems. Mainly changed some
FT_TRACE calls to use %p instead of %lx when dumping
a pointer address
2000-05-18 16:18:05 +00:00
David Turner 109fcf6086 fixed the sbit loader (src/base/sfnt/ttsbit.c)
introduced a new load flag (FT_LOAD_CROP_BITMAP) used
to indicate that we want embedded bitmaps to be cropped..

Thanks a lot to Yamano-uchi, Hidetoshi
2000-05-17 23:35:37 +00:00
David Turner 3475e7fba3 removed TT_MAX_SUBGLYPHS macro, there is no static
limit on the number of subglyphs in a TrueType font..

changed the default number of gray levels used by the
smooth renderer to 256 (instead of 128). Of course, the
human eye can't tell a difference ;-)
2000-05-17 20:56:01 +00:00
David Turner e49ab25c08 formatting - removed trailing spaces 2000-05-16 23:44:38 +00:00
David Turner 968f0c3749 update 2000-05-16 23:26:01 +00:00
David Turner c60c61c684 fixed a potential memory leak when loading embedded bitmaps 2000-05-12 15:26:58 +00:00
David Turner c30aea9846 another massive changes in order to completely avoid
compiler warnings with GCC + "-ansi -pedantic -Wall -W"
and LCC.

Also fixed the compilation of "type1z" with Win32-LCC
(its pre-processor is broken !!)

Updated the BUILD document too
2000-05-12 15:01:18 +00:00
David Turner bfe2f98f1f a new massive grunt work. Redefined the EXPORT_DEF,
EXPORT_FUNC, BASE_DEF and BASE_FUNC macros to
let them take an argument..

This is needed to compile the library as a DLL on some platforms
that have different compiler conventions..
2000-05-12 12:17:15 +00:00
David Turner a9c251c457 logged directory re-organisation 2000-05-11 18:36:19 +00:00
David Turner efce08d67c major re-organisation of the FreeType 2 directory hierarchy 2000-05-11 18:23:52 +00:00
David Turner 77054f2909 updates for the fifth beta 2000-04-14 20:49:52 +00:00
David Turner c3c7e7fb0c updated CHANGES
added BUILD & INSTALL
2000-03-13 14:19:31 +00:00
David Turner 58c10b5a6b updated 2000-02-22 14:31:42 +00:00
David Turner 633da99a23 updated changes log 2000-01-27 14:07:33 +00:00
David Turner 5951ce9fc6 updated the CHANGES file
+ some basic formatting cleaning
1999-12-29 00:53:44 +00:00
David Turner d2b1f35704 Initial revision 1999-12-16 23:11:37 +00:00