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f0df85ba
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2000-06-22T00:17:42
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- 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.
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9ca2af38
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2000-06-21T03:03:28
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A new formatting orgy.
Added some `#if 0' to completely disable the CID AFM stuff. In case this is
not correct please fix.
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f9b8dec4
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2000-06-16T19:34:52
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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
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e3c11d7f
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2000-06-16T06:49:56
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A new round of formatting, adding/fixing documentation etc.
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7a4fda88
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2000-06-13T23:21:00
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The next round of formatting, checking documentation, etc.
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78575dc0
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2000-06-12T19:36:41
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A lot of formatting.
Added more tracing levels.
More Makefile fixes.
Minor other changes.
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e35cac66
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2000-06-11T03:46:57
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A complete revision of FreeType 2's GNU makefiles (of the library):
Tons of unnecessary stuff have been removed; only the essential rules
have been retained.
The source files now depend on all header files in include/freetype,
include/freetype/config, and include/freetype/internal. This is not
optimal, I know, and I'll try to improve this, but it is better than
before (namely no dependencies on `internal').
FTDEBUG_SRC has been added (similar to FTSYS_SRC) -- I don't know
exactly whether this is really useful, but it doesn't harm.
There is now more documentation in the makefiles itself.
io-frames.html: Use of <th>, <code>, and <var> for better tagging.
Reactivating of FT_DEBUG_LEVEL_xxx macros.
Added a lot of #include directives to make `multi' builds possible -- note
that currently the modules cid, t1, and t1z have clashing structures and
functions which means that you can only use one of these three modules for a
multi build.
Added some missing function declarations to (local) header files.
Renamed some T1_Open_Face() to CID_Open_Face() in the cid module -- a lot
of other functions should be renamed also...
Replaced many FT_xxx stuff with T1_xxx in t1z driver -- this isn't finished
yet...
Fixed FT_Free() to allow a NULL pointer without an assertion (this has
always been a valid assumption in FreeType, at least in FT 1.x).
A lot of other, minor fixes (mostly documentation).
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e1d5dd78
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2000-06-07T04:48:12
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Moved all *errors.h header files to include/freetype/internal for
consistency.
Removed unused error message.
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1c0d4acb
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2000-06-06T20:41:48
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Fine-tuned a lot of tracing levels to make them more functional with ftview.
Added a lot of \n to tracing messages.
Fixed a serious bug in loading SBit offsets (missing parentheses around a
xxx ? yyy : zzz construct).
Replaced most GET_xxx() functions with calls to READ_Frame() in ttsbit.c
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04aa800c
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2000-06-01T03:27:48
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added a CID-keyed font driver in "src/cid"
fixed two bugs in the smooth renderer
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2e421319
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2000-05-26T22:13:17
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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..
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2c5f482b
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2000-05-26T22:10:08
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removed obsolete files
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1fb6eea7
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2000-05-24T00:31:14
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EXPORT_DEF renamed to FT_EXPORT_DEF +
reformating/spacing
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51179f0a
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2000-05-18T16:18:05
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some fixes for 64-bit systems. Mainly changed some
FT_TRACE calls to use %p instead of %lx when dumping
a pointer address
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109fcf60
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2000-05-17T23:35:37
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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
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3475e7fb
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2000-05-17T20:56:01
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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 ;-)
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e49ab25c
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2000-05-16T23:44:38
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formatting - removed trailing spaces
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c60c61c6
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2000-05-12T15:26:58
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fixed a potential memory leak when loading embedded bitmaps
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c30aea98
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2000-05-12T15:01:18
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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
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bfe2f98f
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2000-05-12T12:17:15
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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..
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4f2c5544
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2000-05-12T10:19:41
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additional changes, this time in order to pass extra parameters
to font drivers when creating a new face object.
The FT_Open_Args structure has been changed to simplify
its use and allow generic parameters too..
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efce08d6
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2000-05-11T18:23:52
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major re-organisation of the FreeType 2 directory hierarchy
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d186a361
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2000-05-02T17:41:41
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various updates to reduce the compilation warnings
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b7ef2b09
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2000-05-02T11:01:12
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in order to ensure that the bytecode interpretation is exactly
equivalent to the one in FT 1.4, moved some code from the
old version of FreeType in order to compute vector normalization
a bit differently
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48641d60
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2000-05-02T11:00:06
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added a simple line to set "glyph.control_len" when loading
a simple glyph. This is used to compute statistics on font files..
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f8a116fb
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2000-04-25T16:11:12
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implemented extra interface for "FT_Get_Sfnt_Table"
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ed7f62ac
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2000-03-28T11:19:28
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support for FT_LOAD_NO_RECURSE needed by the auto-hinter
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7f7aadf4
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2000-03-13T12:57:27
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finished moving all configuration macros to
"config/ftoption.h"
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3246efed
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2000-03-13T12:12:46
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first step towards moving all configuration options
to the single "config/ftoption.h"
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7f615aef
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2000-03-13T11:49:20
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renamed all outlines functions to the
FT_Outline_<action> syntax..
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41dbcbf6
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2000-03-09T11:46:25
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reformatting, changing the FT_Outline structure:
- "flags" have been renamed to "tags"
- "outline_flags" have been renamed to "flags"
Look for more re-formatting today..
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0f99ddda
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2000-03-06T13:23:32
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changed the structure of FT_Outline in order to pack
all outline flags in a single integer..
Changed the rest of the library and demo programs
accordingly..
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febe3fbe
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2000-03-05T01:14:19
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A first check of FT2's Make system. Many smaller and larger bugs have been
fixed:
. Removing unused variables.
. detect.mk files now must provide $(CONFIG_FILE) and not $(CONFIG_RULE).
. ansi.mk will now be really used as a fallback if the detect mechanism
fails.
. ANSIFLAGS will now be really used (fixing a typo).
. `make clean' now works (again two typos).
. Detection of gcc on Unix has been fixed (using the `-v' option instead of
`--version').
. `make devel' now works (on Unix).
. Fixing *again* a bug in demos/graph/x11/rules.mk to allow multiple use
of `-L' compiler options.
. $(BASE_H) now contains a few more header files.
As usual, a lot of formatting (not finished yet).
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8c5c932e
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2000-03-02T10:53:32
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fixed typo in comment
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7bb7fede
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2000-02-28T11:23:36
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fixed a bug which appeared when loading
unscaled composite glyphs
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08fdac98
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2000-02-21T16:01:33
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fixed a bug in the glyph loader that caused a memory
block to be freed twice. Also performed changes to use
the new glyph zone object that has appeared in ftobjs.h
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861ba624
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2000-02-15T12:54:51
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small fix (reduce compiler warnings)
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85168805
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2000-02-13T13:38:27
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small bug fix used to compile when the SFNT
module doesn't support embedded bitmaps and
postscript names..
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1ab77fdf
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2000-02-10T18:08:17
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some updates to make everything compile clean
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1a26888d
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2000-02-10T16:17:23
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some changes to ensure that the code compiles
cleanly when TT_CONFIG_OPTION_POSTSCRIPT_NAMES
is undefined..
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71ec10ef
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2000-02-10T16:09:35
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support for the IGNORE_GLOBAL_ADVANCE_WIDTH
loading flag
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dba4b324
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2000-02-10T16:08:59
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small update to the kerning code
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8f43c714
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2000-02-02T12:16:19
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A major refresh of the TrueType driver :
- some #ifdefs were included in order to _not_
compile support for the bytecode interpreter
when FT_CONFIG_OPTION_BYTECODE_INTERPRETER
is not defined in "ttconfig.h"
- the glyph loader has been seriously re-designed. It is now
smaller, simpler and should load composites a bit faster
- works with the TrueType debugger
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d42c68e8
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2000-01-27T13:56:02
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many new small, but important, changes there:
- modified the interface of the "sfnt" module. There is now a function
called "load_format_tag", and another called "load_directory".
The first one is in charge of returning the 4-byte tag located at
the beginning of a given font file. It understand TrueType collections
and parses them automatically
The second loads the table directory that is located just after
the format tag.
This is useful, because the "SFNT" storage scheme can be used by
several distinct formats, each with its own format tag.
The TrueType driver now checks the format tag in "src/truetype/ttobjs.c"
- made some changes to "src/shared/t1types.h" to clearly separate the
Type 1 font content from the rest of the T1_Face structure. This
will be useful when adding the CFF/Type2 driver that will be able
to reuse the "T1_Font" structure within a "TT_Font" one (which
really describes a SFNT-based font file).
Some changes in "src/type1" were thus performed to reflect this.
Note that the current type1 driver will be discontinued in a
distant future. More on this later..
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3ba47068
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2000-01-17T11:25:57
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some updates to the "rules.mk" files. Basically, we now
use "$(FT_COMPILE)" instead of "$(FT_CC)" in order to
compile the library.
$(FT_COMPILE) uses the $(ANSI_FLAGS) variable used to
define ANSI-compliance flags for the current compiler. It is used
to compile the library exclusively (some demo programs will _not_
compile properly with these flags set).
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3b925ef7
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2000-01-17T11:22:59
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fixed a minor bug in the computation of the vertical
metrics top-side bearing
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454a4285
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2000-01-13T18:19:51
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fixed a bug which caused some font family and style
names to be incorrectly ignored..
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f697866e
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2000-01-08T20:00:54
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Bugfix: prep table is optional.
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fc1f9894
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2000-01-07T18:44:50
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Finally, the TrueType driver was completely audited. The code should
now be 100% compatible with the implementation in FreeType 1.x.
It's now time to make a new tag for the repository :-)
- David
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10effdf6
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1999-12-29T00:22:24
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Added the rules files `module.mk' to "sfnt", "truetype" and "type1" to
reflect the new modules/drivers list management performed through the
file `freetype2/config/modules.mk'
Changed the driver header files to reflect the new modules/drivers
list management. We get rid, at last, of the infamous pre-processor
tricks used to build the list at compile time.
`src/base/ftinit.c' is also modified to reflect the changes..
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d2b1f357
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1999-12-16T23:11:37
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Initial revision
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