Commit Graph

142 Commits

Author SHA1 Message Date
Werner Lemberg 930e9bf8f4 Add new error code FT_Err_Missing_Module.
Previously, FreeType misleadingly returned
FT_Err_Unknown_File_Format if a module was missing (or a test was
missing completely).

* include/freetype/fterrdef.h (FT_Err_Missing_Module): Define.

* src/cff/cffobjs.c (cff_face_init), src/cid/cidobjs.c
(cid_face_init), src/sfnt/sfobjs.c (sfnt_init_face),
src/truetype/ttobjs.c (tt_face_init), src/type1/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init,
T42_Driver_Init): Updated.

* src/type1/t1afm.c (T1_Read_Metrics), src/type/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Remove now
redundant test for `psaux'.
2011-11-26 13:38:26 +01:00
Werner Lemberg f4b63326f1 Fix previous commit.
We want to unset FT_FACE_FLAG_SCALABLE only if there are bitmap
strikes in the font.

* src/truetype/ttobjs.c (tt_face_init): Implement it.

* docs/CHANGES: Updated.
2011-07-03 11:24:46 +02:00
Just Fill Bugs 07598339f7 Fix Savannah bug #33246.
* src/truetype/ttobjs.c (tt_check_single_notdef): New function.
(tt_face_init): Use it to test FT_FACE_FLAG_SCALABLE.
2011-07-02 18:41:36 +02:00
Daniel Zimmermann 3ad8f35537 Reduce warnings for MS Visual Studio 2010.
* src/autofit/afhints.c (af_glyph_hints_get_num_segments,
af_glyph_hints_get_segment_offset) [!FT_DEBUG_AUTOFIT]: Provide
return value.
* src/cff/cffgload.c (cff_slot_load): Add cast.
* src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids): Use proper
loop variable type.
2011-05-24 06:22:32 +02:00
suzuki toshiya 58cb359335 [truetype] Recalculate the sfnt table checksum always.
* src/truetype/ttobjs.c (tt_get_sfnt_checksum): Recalculate
the sfnt table checksum even if non-zero value is writte in
the TrueType font header.  Some bad PDF generators write
wrong values.  For detail, see examples and benchmark tests
of the latency by recalculation:
http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00091.html
http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00096.html
2011-05-01 00:47:43 +09:00
suzuki toshiya 1e89d15a27 [truetype] Register a set of tricky fonts, NEC FA family.
* src/truetype/ttobjs.c (tt_check_trickyness_sfnt_ids):
Add 8 checksum sets for NEC FA family.  For the tricky fonts
without some tables (e.g. NEC FA fonts lack cvt table),
extra check is added to assure that 0-length table in the
registry is not included in the font.
2011-04-30 17:55:57 +09:00
suzuki toshiya 10385e379e Remove unrequired `else' from ttobjs.c::tt_get_sfnt_checksum(). 2011-04-30 17:49:45 +09:00
suzuki toshiya 89208861ef [truetype] Fix a bug in the sfnt table checksum getter.
* src/truetype/ttobjs.c (tt_get_sfnt_checksum): Check the
return value of face->goto_table() correctly.
2011-04-30 00:11:07 +09:00
suzuki toshiya 86b7b2f614 [truetype] Revert the reordering of trickyness checking.
Trickyness check by the family name is faster than that by
the checksum.
2011-04-26 03:46:12 +09:00
suzuki toshiya abc47aa136 [truetype] Always check the checksum to identify tricky fonts.
Some PDF generators mangle the family name badly, prioritize
the check by the sfnt table checksums than the check by the
family name.  For sample PDF, see
http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00073.html

* src/truetype/ttobjs.c (tt_check_trickyness): Exchange the order
of tt_check_trickyness_family() and tt_check_trickyness_sfnt_ids().
2011-04-25 23:51:04 +09:00
Werner Lemberg 18931a5a5d [truetype] FT_LOAD_PEDANTIC now affects `prep' and `fpgm' also.
* src/truetype/ttgload.c (tt_loader_init): Handle
`FT_LOAD_PEDANTIC'.
* src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep,
tt_size_init_bytecode, tt_size_ready_bytecode): New argument to
handle pedantic mode.
* src/truetype/ttobjs.h: Updated.
2011-02-01 07:08:43 +01:00
Werner Lemberg 9871b849dd Some formatting and improvements of comments. 2010-11-22 19:30:41 +01:00
suzuki toshiya 9f5dd61bf3 [truetype] Identify the tricky fonts by cvt/fpgm/prep checksums.
Some Latin TrueType fonts are still expected to be unhinted.
Fix Savannah bug #31645.

* src/truetype/ttobjs.c (tt_check_trickyness): Divided to...
(tt_check_trickyness_family): this checking family name, and
(tt_check_trickyness_sfnt_ids): this checking cvt/fpgm/prep.
(tt_get_sfnt_checksum): Function to retrieve the sfnt checksum
for specified subtable even if cleared by lazy PDF generators.
(tt_synth_sfnt_checksum): Function to calculate the checksum.
2010-11-23 02:47:10 +09:00
Werner Lemberg 6abb9232b6 Improve tracing messages.
* src/truetype/ttinterp.c (TT_RunIns): Improve wording of tracing
message.
* src/truetype/ttobjs.c (tt_size_run_fpgm, tt_size_run_prep): Add
tracing message.
* src/truetype/ttgload.c (tt_loader_init): Add tracing message.
* src/cache/ftcsbits.c (ftc_snode_load): Emit tracing message if
glyph doesn't fit into a small bitmap container.
2010-09-14 09:02:10 +02:00
suzuki toshiya 0eb9b1f571 Force hinting when the font lacks its familyname.
In Type42 or Type11 font embedded in PostScript & PDF, TrueType
sfnt stream may lack `name' table because they are not required.
Hinting for nameless fonts is safer for PDFs including embedded
Chinese fonts. Written by David Bevan, see:

http://lists.gnu.org/archive/html/freetype-devel/2010-08/msg00021.html
http://lists.freedesktop.org/archives/poppler/2010-August/006310.html

* src/truetype/ttobjs.c (tt_check_trickyness): If a NULL pointer
by nameless font is given, TRUE is returned to enable hinting.
2010-08-28 21:42:28 +09:00
suzuki toshiya 8b05b5d801 Register yet another tricky TrueType font.
* src/truetype/ttobjs.c (tt_check_trickyness): Add `HuaTianKaiTi?',
a Kaishu typeface paired with `HuaTianSongTi?' by Huatian
Information Industry.
2010-08-28 21:16:26 +09:00
Werner Lemberg 46e05c443b Fix Savannah bug #23786.
* src/truetype/ttobjs.c (tt_size_init_bytecode): Don't reset x_ppem
and y_ppem.  Otherwise the `*_CVT_Stretched' functions in ttinterp.c
get never called.
An anonymous guy suggested this change on Savannah, and it seems to
be the right solution.
2009-07-17 22:49:34 +02:00
Oran Agra 2e7a4e9b7f Position Independent Code (PIC) support in truetype driver.
* include/freetype/internal/services/svmm.h add macros to init
instances of FT_Service_MultiMastersRec.
* include/freetype/internal/services/svttglyf.h add macros to init
instances of FT_Service_TTGlyfRec.

* src/truetype/ttdriver.h declare tt_driver_class using macros from
ftdriver.h, when FT_CONFIG_OPTION_PIC is defined create and destroy
functions will be declared.
* src/truetype/ttdriver.c when FT_CONFIG_OPTION_PIC is defined
the following structs:
tt_service_gx_multi_masters, tt_service_truetype_glyf, tt_driver_class
and tt_services array,
will have functions to init or create and destroy them
instead of being allocated in the global scope.
And macros will be used from ttpic.h in order to access them
from the pic_container.
* src/truetype/ttobjs.c change trick_names array to be
PIC-compatible by being a two dimentional array rather than array
of pointers.

New Files:
* src/truetype/ttpic.h declare struct to hold PIC globals for truetype
driver and macros to access them.
* src/truetype/ttpic.c implement functions to allocate, destroy and
initialize PIC globals for truetype driver.

* src/truetype/truetype.c add new file to build: ttpic.c.
* src/truetype/jamfile add new files to FT2_MULTI build: ttpic.c.
2009-04-05 18:03:02 +03:00
Werner Lemberg 86e041b5a8 Remove redundant header inclusions.
This covers many Ghostscript Coverity issues.

* src/*: Do it.
2009-03-21 08:51:44 +01:00
Werner Lemberg 0552a496c4 * src/truetype/ttobjs.c (tt_check_trickyness): Add `DFKaiShu'.
Reported by David Bevan <dbevan@emtex.com>.
2009-02-11 22:59:40 +00:00
Werner Lemberg b972a2a294 Generalize the concept of `tricky' fonts by introducing
FT_FACE_FLAG_TRICKY to indicate that the font format's hinting
engine is necessary for correct rendering.

At the same time, slightly modify the behaviour of tricky fonts:
FT_LOAD_NO_HINTING is now ignored.  To really force raw loading
of tricky fonts (without hinting), both FT_LOAD_NO_HINTING and
FT_LOAD_NO_AUTOHINT must be used.

Finally, tricky TrueType fonts always use the bytecode interpreter
even if the patented code is used.

* include/freetype/freetype.h (FT_FACE_FLAG_TRICKY, FT_IS_TRICKY):
New macros.

* src/truetype/ttdriver.c (Load_Glyph): Handle new load flags
semantics as described above.

* src/truetype/ttobjs.c (tt_check_trickyness): New function, using
code of ...
(tt_face_init): This function, now simplified and updated to new
semantics.

* src/base/ftobjs.c (FT_Load_Glyph): Don't use autohinter for tricky
fonts.

* docs/CHANGES: Document it.
2008-12-11 08:55:48 +00:00
Werner Lemberg d03d856d95 * src/truetype/ttobjs.c (tt_face_done), src/cff/cffobjs.c
(cff_face_done), src/pfr/pfrobjs.c (pfr_face_done),
src/pcf/pcfdrivr.c (PCF_Face_Done), src/cid/cidobjs.c
(cid_face_done), src/bdf/bdfdrivr. (BDF_Face_Done),
src/sfnt/sfobjs.c (sfnt_face_done): Protect against face == 0.
Reported by Graham Asher.
2008-10-01 22:39:05 +00:00
Werner Lemberg a2f17cc150 * docs/CHANGES: Updated.
Improve support for WGL4 encoded fonts.

* src/psnames/psmodule.c (WGL_EXTRA_LIST_SIZE): New macro.
(ft_wgl_extra_unicodes, ft_wgl_extra_glyph_names,
ft_wgl_extra_glyph_name_offsets): New arrays.
(ps_check_wgl_name, ps_check_wgl_unicode): New functions.
(ps_unicodes_init): Use them to add additional Unicode mappings.
2008-05-17 10:01:45 +00:00
Werner Lemberg d496b92659 * src/truetype/ttobjs.c (tt_face_init): Don't use logical OR to
concatenate error codes.
2007-12-04 21:49:59 +00:00
Werner Lemberg 6ff2ff574b * src/truetype/ttobjs.h (tt_size_ready_bytecode): Move declaration
into TT_USE_BYTECODE_INTERPRETER preprocessor block.

* src/truetype/ttobjs.c (tt_size_ready_bytecode)
[!TT_USE_BYTECODE_INTERPRETER]: Removed.  Unused.
2007-05-24 19:39:14 +00:00
Werner Lemberg 56ceaa4853 Formatting. 2007-05-14 18:53:58 +00:00
David Turner a8b45e6183 fix a typo that force CVT scaling to be re-run on each glyph load 2007-05-11 14:10:30 +00:00
Werner Lemberg 3d92f08bc5 * include/freetype/config/ftstdlib.h (ft_strstr): New wrapper
macro for `strstr'.

* src/truetype/ttobjs.c (tt_face_init): Use ft_strstr for scanning
`trick_names', as suggested by Ivan Nincic.
2007-03-06 11:59:24 +00:00
David Turner 91aaf3267b bugfix: do not erase root x_ppem and y_ppem values in tt_size_init_bytecode 2007-03-05 18:18:52 +00:00
David Turner 741a17e82b * src/truetype/ttobjs.c: fixed typo that prevented compilation when
disabling both the unpatented and the bytecode interpreter in the
        TrueType font driver
2007-01-23 16:14:38 +00:00
Werner Lemberg b4142d5126 Whitespace and spelling fixes from Alexei.
Formatting, copyright years.
2007-01-17 12:45:26 +00:00
David Turner 2212272992 * src/autofit/aflatin.c, src/cff/cffdriver.c, src/truetype/ttobjs.c,
src/truetype/ttinterp.c: fixing compiler warnings
2007-01-16 20:06:44 +00:00
Werner Lemberg f629439905 formatting, copyright years 2007-01-06 07:47:45 +00:00
David Turner 384be23418 * src/truetype/ttobjs.h, src/truetype/ttobjs.c,
src/truetype/ttgload.c: do not allocate interpreter-specific
	tables in memory if we're not going to load glyphs with it
	anyway.
2007-01-05 15:32:01 +00:00
David Turner 80658e5075 * src/truetype/ttobjs.c (tt_face_init): Fix typo in previous patch
* src/smooth/ftgrays.c: remove hard-coded error values, use FreeType
    ones instead

    * src/autofit/afhints.c (af_glyph_hints_dump_segments): remove unused
    variable
2006-11-28 08:09:20 +00:00
Werner Lemberg 8636c29ae8 * src/truetype/ttobjs.c (tt_face_init): Protect against NULL pointer. 2006-11-26 22:28:13 +00:00
Werner Lemberg 046bf8b0cc formatting 2006-10-03 08:43:42 +00:00
David Turner df430e1a20 * include/freetype/internal/ftobjs.h, src/base/ftobjs.c,
src/truetype/ttobjs.c: fixes related to the unpatented hinter
2006-10-01 00:09:35 +00:00
David Turner ad83071620 * include/freetype/internal/ftobjs.h, src/truetype/ttobjs.c,
src/base/ftobjs.c: fixed a bug in the automatic unpatented
        hinting support which prevented normal bytecode hinting to
        work properly

        * src/autofit/aftypes.h: undefining AF_DEBUG to get rid of
        traces
2006-09-27 16:20:59 +00:00
David Turner f3050059dd * src/sfnt/sfobjs.c (tt_face_get_name): support some function
which report their English names through an Apple Roman
        (platform,encoding) pair, with language_id != English

        if the font uses another name entry with language_id == English,
        it will be selected correctly though.

        * src/truetype/ttobjs.c: add unpatent-hinting selection for
        "mingli.ttf"
2006-09-11 12:00:32 +00:00
Werner Lemberg 2d8629b393 * devel/ftoption.h: Synchronize with
include/freetype/config/ftoption.h.

* src/smooth/ftgrays.c (gray_record_cell): Remove shadowing
variable declaration.
(gray_convert_glyph): Fix compiler warnings.

Formatting, copyright years.
2006-09-03 06:18:45 +00:00
David Turner 6d79f214e1 * src/truetype/ttobjs.c: updated the TrueType loader to recognize
a few fonts that require the automatic unpatented loader
2006-09-01 14:09:35 +00:00
David Turner 6aa260ce61 support for "automatic unpatented hinting" added
we still need to determine the list of "trick" CJK fonts
that are going to toggle the bytecode interpreter instead
of the auto-hinter
2006-08-25 22:45:13 +00:00
David Turner 33f5f24957 * include/freetype/internal/ftgloadr.h,
include/freetype/internal/tttypes.h, src/base/ftgloadr.c,
    src/base/ftobjs.c, src/truetype/ttgload.c, src/truetype/ttinterp.c,
    src/truetype/ttobjs.c: improvements to native TrueType hinting,
    this is a first try, controlled by the FIX_BYTECODE macro in
    src/truetype/ttinterp.c
2006-08-16 16:50:55 +00:00
Wu, Chia-I (吳佳一) f5aa47beb0 Clean up the SFNT_Interface. Table loading functions are now named
after the tables' tags;  `hdmx' is TrueType-specific and thus the code
is moved to the truetype module; `get_metrics' is moved here from the
truetype module so that the code can be shared with the cff module.

This pass involves no real changes.  That is, the code is moved
verbatim mostly.  The only exception is the return value of
`tt_face_get_metrics'.

* include/freetype/internal/sfnt.h, src/sfnt/rules.mk,
src/sfnt/sfdriver.c, src/sfnt/sfnt.c, src/sfnt/sfobjs.c,
src/sfnt/ttload.c, src/sfnt/ttload.h, src/sfnt/ttsbit.c,
src/sfnt/ttsbit.h, src/sfnt/ttsbit0.c: Clean up the SFNT_Interface.

* src/sfnt/ttmtx.c, src/sfnt/ttmtx.h: Metrics-related tables' loading
and parsing code is moved here.
Move `tt_face_get_metrics' here from the truetype module.  The return
value is changed from `void' to `FT_Error'.

* include/freetype/internal/fttrace.h: New trace: ttmtx.

* src/truetype/ttpload.c, src/truetype/ttpload.h: `hdmx' loading and
parsing code is moved here.
New function `tt_face_load_prep' splitted from `tt_face_load_fpgm'.
`tt_face_load_fpgm' returns `FT_Err_Ok' if `fpgm' doesn't exist.

* src/cff/cffgload.c, src/cff/cffobjs.c: Update.

* src/truetype/ttgload.c, src/truetype/ttobjs.c: Update.
2006-02-14 06:40:10 +00:00
Werner Lemberg f1c2b91e14 Formatting, copyright year updates.
Decorate long constants with `L' and `UL' where appropriate.
2006-01-13 14:53:28 +00:00
Wu, Chia-I (吳佳一) fa7d6ab217 * include/freetype/internal/sfnt.h (SFNT_Interface): New method
`load_strike_metrics' used to load the strike's metrics.

* src/sfnt/sfdriver.c, src/sfnt/ttsbit.c, src/sfnt/ttsbit.h,
src/sfnt/ttsbit0.c: New function `tt_face_load_strike_metrics'.

* src/pfr/pfrobjs.c (pfr_face_init): Set FT_Bitmap_Size correctly.

* src/winfonts/winfnt.c (FNT_Face_Init): Use `nominal_point_size' for
nominal size unless it is obviously incorrect.

* include/freetype/freetype.h (FT_Bitmap_Size): Update the comments on
FNT driver.


Introduce new size selection interface.

* include/freetype/internal/ftdriver.h (struct FT_Driver_ClassRec_):
Replace `set_char_sizes' and `set_pixel_sizes' by `request_size' and
`select_size'.

* include/freetype/freetype.h (FT_Select_Size, FT_Size_Request_Type,
FT_Size_Request, FT_Request_Size, FT_Select_Size), src/base/ftobjs.c
(FT_Select_Size, FT_Request_Size): API additions to export the new
size selection interface.

* src/base/ftobjs.c (FT_Set_Char_Size, FT_Set_Pixel_Sizes): Use
`FT_Request_Size'.

* include/freetype/internal/ftobjs.h (FT_Match_Size),
src/base/ftobjs.c (FT_Match_Size): New function to match a size
request against `available_sizes'.  Drivers supporting bitmap strikes
can use this function to implement `request_size'.

* src/bdf/bdfdrivr.c, src/cid/cidobjs.c, src/cid/cidobjs.h,
src/cid/cidriver.c, src/pcf/pcfdrivr.c, src/type1/t1driver.c,
src/type1/t1objs.c, src/type1/t1objs.h, src/type42/t42drivr.c,
src/type42/t42objs.c, src/type42/t42objs.h, src/winfonts/winfnt.c:
Update to new size selection interface.

* src/cff/cffdrivr.c, src/cff/cffgload.c, src/cff/cffobjs.c,
src/cff/cffobjs.h, src/truetype/ttdriver.c, src/truetype/ttgload.c,
src/truetype/ttobjs.c, src/truetype/ttobjs.h: Update to new size
selection interface.
Make `strike_index' FT_ULong and always defined.
Use `load_strike_metrics' provided by SFNT interface.
2006-01-13 12:21:31 +00:00
Wu, Chia-I (吳佳一) a3690cdadd * src/truetype/ttobjs.c (tt_size_init): size->ttmetrics.valid is
initialized twice.
size->strike_index is not initialized.
2005-12-06 08:24:01 +00:00
Werner Lemberg 7734a1f720 Add FT_FACE_FLAG_HINTER to indicate that a specific font driver has
a hinting engine of its own.

* include/freetype/freetype.h (FT_FACE_FLAG_HINTER): New macro.

* src/cff/cffobjs.c (cff_face_init), src/cid/cidobjs.c
(cid_face_init), src/truetype/ttobjs.c (tt_face_init)
[TT_CONFIG_OPTION_BYTECODE_INTERPRETER], src/type1/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init)
[TT_CONFIG_OPTION_BYTECODE_INTERPRETER]: Update face flags.

* docs/CHANGES: Document it.
2005-10-05 15:18:29 +00:00
Wu, Chia-I (吳佳一) 0142e6aff1 * src/truetype/ttinterp.c, src/truetype/ttinterp.h: Remove original
TT_Done_Context and rename TT_Destroy_Context to TT_Done_Context with
slight changes.

* src/truetype/ttobjs.h (tt_slot_init): New function.

* src/truetype/ttobjs.c (tt_driver_init): Initialize execution context
here.
(tt_slot_init): New function to create extra points for the internal
glyph loader. We then use it directly, instead of face's glyph loader,
when loading glyph.

* src/truetype/ttdriver.c: Use tt_slot_init for glyph slot
initialization.
(TT_Load_Glyph): Load flag dependencies are handled here.
Return error if size is NULL.

* src/truetype/ttgload.c: Heavy cleanup and refactor.
(TT_Hint_Glyph): New funcion to hint a zone, prepared by caller.
(TT_Process_Simple_Glyph): Use loader->pp's instead of recalculating.
Use TT_Hint_Glyph.
No need to save/restore loader->stream before/after
TT_Vary_Get_Glyph_Deltas now.
(TT_LOADER_SET_PP): New macro to calculate and set the four phantom points.
(TT_Process_Composite_Component, TT_Process_Composite_Glyph,
load_truetype_glyph): Refactor load_truetype_glyph into these three functions.
Never set exec->glyphSize to 0. (close #13107)
Forget glyph frame before calling TT_Process_Simple_Glyph.
(TT_Load_Glyph, load_sbit_image, tt_loader_init): Refactor TT_Load_Glyph into
these three functions.
Set various fields of `glyph' here, instead of in load_truetype_glyph
and compute_glyph_metrics.
2005-08-16 01:54:59 +00:00