kc3-lang/freetype/src/truetype/ttinterp.c

src/truetype/ttinterp.c

Log

Author Commit Date CI Message
Werner Lemberg 83c0ebab 2012-06-27T08:16:06 Fix conditional compilation. * include/freetype/internal/ftcalc.h (FT_MulDiv_No_Round): Don't enclose with `TT_USE_BYTECODE_INTERPRETER'; we now need the function elsewhere also. * src/autofit/afcjk.h: Use AF_CONFIG_OPTION_CJK. * src/truetype/ttgload.c (tt_loader_init): Fix compiler warning. * src/truetype/ttinterp.c (Ins_MSIRP): Fix compiler warning. * src/truetype/ttinterp.h: Use TT_CONFIG_OPTION_BYTECODE_INTERPRETER.
Infinality ed6508c4 2012-06-26T17:20:27 [truetype] Remove unused rounding functionality.
Infinality 79e36bae 2012-06-18T10:36:06 [truetype] Support subpixel hinting. This is the large, famous `Infinality' patch to support ClearType bytecode which has been available from http://www.infinality.net/blog/ for some time, and which has been refined over the last years. While still experimental, it is now mature enough to be included directly into FreeType. Most of the code is based on the ClearType whitepaper written by Greg Hitchcock http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx which gives a detailed overview of the necessary changes to the Microsoft rasterizer so that older fonts are supported. However, a lot of details are still missing, and this patches provides a framework to easily handle rendering issues down to the glyph level of certain fonts. Note that ClearType support is not completely implemented! In particular, full support for the options `compatible_widths', `symmetrical_smoothing, and `bgr' (via the GETINFO bytecode instruction) is missing. * src/truetype/ttsubpix.c: New file, providing code to handle `tweaks', this is, rules for certain glyphs in certain fonts (including wildcards) which need a special treatment. * src/truetype/ttsubpix.h: New file, holding the tweaking rules. * include/freetype/config/ftoption.h, src/devel/ftoption.h (TT_CONFIG_OPTION_SUBPIXEL_HINTING): New macro. * include/freetype/internal/ftobjs.h (FT_PIX_FLOOR_GRID, FT_PIX_ROUND_GRID, FT_PIX_CEIL_GRID): New macros. * src/truetype/truetype.c [TT_USE_BYTECODE_INTERPRETER]: Include `ttsubpix.c'. * src/truetype/ttgload.c: Include `ttsubpix.h'. [All changes below are guarded by TT_CONFIG_OPTION_SUBPIXEL_HINTING.] (tt_get_metrics): Set tweak flags. (TT_Hint_Glyph): Call `FT_Outline_EmboldenXY' if necessary. (TT_Process_Simple_Glyph): Compensate emboldening if necessary. (compute_glyph_metrics): Handle `compatible widths' option. (tt_loader_init): Handle ClearType GETINFO information bits. * src/truetype/rules.mk (TT_DRC_SRC): Updated. * src/truetype/ttinterp.c: Include `ttsubpix.h'. [Where necessary, changes below are guarded by TT_CONFIG_OPTION_SUBPIXEL_HINTING.] (Direct_Move, Direct_Move_X): Extended. (Round_None, Round_To_Grid, Round_To_Half_Grid, Round_Down_To_Grid, Round_Up_To_Grid, Round_To_Double_Grid, Round_Super, Round_Super_45, SetSuperRound): Add parameter to handle the number of grid lines per pixel. (SET_SuperRound, ROUND_None, CUR_Func_round): Updated. (DO_SROUND, DOS45ROUND, DO_ODD, DO_EVEN): Updated. (DO_ROUND, DO_NROUND): Updated. (DO_RS): Take care of `Typeman' bytecode patterns. (Ins_FDEF): Add some debugging code. Commented out. (Ins_ENDF): Restore state. (Ins_CALL, Ins_LOOPCALL): Handle inline delta functions. (Ins_MD): Handle `Vacuform' rounds. (Move_Zp2_Point, Ins_SHPIX, Ins_MSIRP, Ins_MDAP, Ins_MIAP, Ins_MDRP, Ins_MIRP): Handle tweaks. (Ins_ALIGNRP): Add tweak guard. (Ins_IUP, Ins_DELTAP): Handle tweaks. (Ins_GETINFO): Handle new ClearType bits. (TT_RunIns): Handle tweaks. * src/truetype/ttinterp.h: Updated. (SPH_TweakRule, SPH_ScaleRule): New structures for tweaks. (TT_ExecContextRec): Add members for subpixel hinting support. * src/truetype/ttobjs.h (TT_DefRecord): Add `inline_delta' member.
Werner Lemberg f1ec0842 2012-03-11T13:48:25 s/maximal/maximum/ everywhere, s/minimal/minimum/ where appropriate.
Werner Lemberg 1054bc29 2012-03-10T09:30:27 [truetype] Improve comment.
Werner Lemberg e1899bcf 2012-03-10T09:28:24 [truetype] Fix SSW instruction. * src/truetype/ttinterp.c (DO_SSW): SSW *does* use font units. For verification, it took some time to find a font which actually uses this instruction.
Werner Lemberg a33c013f 2012-03-01T14:04:30 [truetype] Fix Savannah bug #35646. * src/truetype/ttinterp.c (Ins_MIRP): Typo, present since ages. The code is now in sync with the other operators (e.g. MSIRP) which modify twilight points.
Werner Lemberg 5dddcc45 2012-03-01T07:52:24 [truetype] Fix Savannah bug #35640. * src/truetype/ttinterp.c (SkipCode, TT_RunIns): Fix boundary check for NPUSHB and NPUSHW instructions.
Werner Lemberg 96cddb8d 2012-02-29T17:58:57 [truetype] Fix Savannah bug #35601. * src/truetype/ttinterp.c (Ins_SHZ): Use number of points instead of last point for loop. Also remove redundant boundary check.
Werner Lemberg 9eacbb81 2012-02-29T14:47:47 [truetype] Make SHC instruction behave similar to MS rasterizer. * src/truetype/ttinterp.c (Ins_SHC): Handle virtual contour in twilight zone.
Werner Lemberg d74285d1 2012-02-29T13:59:49 [truetype] Improve comments.
Werner Lemberg 22fff253 2012-02-26T08:47:20 Whitespace.
Werner Lemberg b4e06818 2012-02-11T20:56:10 [truetype] Fix Savannah bug #35466. Jump instructions are now bound to the current function. The MS Windows rasterizer behaves the same, as confirmed by Greg Hitchcock. * src/truetype/ttinterp.h (TT_CallRec): Add `Cur_End' element. * src/truetype/ttobjs.h (TT_DefRecord): Add `end' element. * src/truetype/ttinterp.c (DO_JROT, DO_JMPR, DO_JROF): Check upper bound of jump address. (Ins_FDEF, Ins_CALL, Ins_LOOPCALL, Ins_UNKNOWN, TT_RunIns): Updated.
suzuki toshiya 1749d8bc 2012-01-17T02:00:24 Remove trailing spaces.
Tobias Ringström 21472de1 2012-01-04T18:27:16 [truetype] Fix IP instruction if x_ppem != y_ppem. * src/truetype/ttinterp.c (Ins_IP): Scale `orus' coordinates properly.
Werner Lemberg f4ec60fd 2011-10-25T20:25:32 [truetype] Fix MD instruction for twilight zone. * src/truetype/ttinterp.c (Ins_MD): Without this fix, the MD instruction applied to original coordinates of twilight points always returns zero.
Werner Lemberg bad0160c 2011-08-12T19:50:13 [truetype] Fix degenerate case in S{P,F,DP}VTL opcodes. * src/truetype/ttinterp.c (Ins_SxVTL): Handle p1 == p2 specially. (Ins_SDPVTL): Handle v1 == v2 specially.
Werner Lemberg 22e44e06 2011-08-05T09:57:17 [truetype] Remove incorrect comments.
Werner Lemberg f2573a06 2011-08-05T09:07:21 [truetype] Fix some comments in the bytecode interpreter. Thanks to Greg Hitchcock!
Werner Lemberg f1a981b5 2011-01-31T22:26:53 [truetype] Protect jump instructions against endless loops. * src/truetype/interp.c (DO_JROT, DO_JMPR, DO_JROF): Exit with error if offset is zero.
Werner Lemberg d6a213f8 2011-01-31T18:51:07 [truetype] Improve handling of invalid references. * src/truetype/interp.c: Set even more TT_Err_Invalid_Reference error codes only if pedantic hinting is active. At the same time, try to provide sane values which hopefully allow useful continuation. Exception to this is CALL and LOOPCALL – due to possible stack corruption it is necessary to bail out.
Werner Lemberg 96f04564 2011-01-31T10:24:32 [truetype] Improve handling of stack underflow. * src/truetype/ttinterp.c (TT_RunIns, Ins_FLIPPT, Ins_DELTAP, Ins_DELTAC): Exit with error only if `pedantic_hinting' is set. Otherwise, try to do something sane.
Werner Lemberg 0682251e 2011-01-30T16:38:09 * src/sfnt/ttmtx.c (tt_face_load_hmtx): Fix tracing message.
LIU Sun-Liang c61b3596 2011-01-30T16:29:45 [truetype]: Fix behaviour of MIAP for invalid arguments. * src/truetype/ttinterp.c (Ins_MIAP): Set reference points even in case of error.
Werner Lemberg dcdb3167 2011-01-18T07:35:26 [truetype] Fix handling of MIRP instruction. Thanks to Greg Hitchcock who explained the issue. * src/truetype/ttinterp.c (Ins_MIRP): Replace a `>=' operator with `>' since the description in the specification is incorrect. This fixes, for example, glyph `two' in font `Helvetica Neue LT Com 65 medium' at 15ppem.
Johnson Y. Yan 9073e7ce 2010-11-26T11:58:08 [truetype] Better multi-threading support. * src/truetype/ttinterp.c (TT_Load_Context): Reset glyph zone references.
suzuki toshiya 46c371c2 2010-10-25T00:14:13 Replace "%lx" for memory address by "%p", LLP64 platforms. On LLP64 platforms (e.g. Win64), long (32-bit) cannot cover the memory address (64-bit). Also the casts from the pointer type to long int should be removed to preserve the address correctly. * src/raster/ftraster.c (New_Profile): Replace "%lx" by "%p". (End_Profile) Ditto. * src/truetype/ttinterp.c (Init_Context): Ditto.
Werner Lemberg 0edf0986 2010-10-06T11:52:27 [truetype] Improve error handling of `SHZ' bytecode instruction. Problem reported by Chris Evans <scarybeasts@gmail.com>. * src/truetype/ttinterp.c (Ins_SHZ): Check `last_point'.
suzuki toshiya 5edc2f33 2010-10-01T08:15:55 Fix Savannah bug #31040. * src/truetype/ttinterp.c (free_buffer_in_size): Remove. (TT_RunIns): Updated.
suzuki toshiya db053ec9 2010-09-17T23:20:00 [truetype] Don't duplicate size->twilight structure to be freed. * src/truetype/ttinterp.c (free_buffer_in_size): Don't duplicate FT_GlyphZoneRec size->twilight to be freed. If duplicated, FT_FREE() erases the duplicated pointers only and leave original pointers. They can cause the double-free crash when the burst errors occur in TrueType interpreter and free_buffer_in_size() is invoked repeatedly. See Savannah bug #31040 for detail.
Werner Lemberg afd89d30 2010-09-15T13:02:35 Make bytecode debugging with FontForge work again. * src/truetype/ttinterp.c (TT_RunIns): Don't call `free_buffer_in_size' in case of error if a debugger is active.
Werner Lemberg 6abb9232 2010-09-14T09:02:10 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.
Werner Lemberg 5220ef58 2010-09-13T07:32:22 Fix minor issues reported by <muktha.narayan@wipro.com>. * src/autofit/aflatin.c (af_latin_compute_stem_width): Remove redundant conditional check. * src/base/ftsynth.c (FT_GlyphSlot_Embolden): Ditto. * src/cff/cffload.c (cff_encoding_load): Remove conditional check which always evaluates to `true'. * src/pshinter/pshalgo.c (ps_glyph_interpolate_strong_points): Ditto. * src/truetype/ttinterp.c (Ins_IUP): Ditto. * src/cid/cidgload.c (cid_slot_load_glyph): Don't check for NULL if value is already dereferenced. * src/winfonts/winfnt.c (FNT_Load_Glyph): Fix check of `face'.
suzuki toshiya 0eb657b0 2010-08-31T13:29:05 [truetype] Decrease the trace level catching the interpreter error. * src/truetype/ttinterp.c (TT_RunIns): Decrease the trace level showing the error when the interpreter returns with an error, from FT_TRACE7() to FT_TRACE1().
suzuki toshiya 29e044a4 2010-08-31T01:23:30 [truetype] Prevent bytecode reuse after the interpretation error. * src/truetype/ttinterp.c (free_buffer_in_size): New function to free the buffer allocated during the interpretation of this glyph. (TT_RunIns): Unset FT_Face->size->{cvt_ready,bytecode_ready} if an error occurs in the bytecode interpretation. The interpretation of invalid bytecode may break the function definitions and referring them in later interpretation is danger. By unsetting these flags, `fpgm' and `prep' tables are executed again in next interpretation. Fix Savannah bug #30798, reported by Robert Swiecki.
Werner Lemberg 346f1867 2010-08-06T00:47:57 Fix Savannah bug #30657. * src/truetype/ttinterp.c (BOUNDSL): New macro. Change `BOUNDS' to `BOUNDSL' where appropriate. * src/truetype/ttinterp.h (TT_ExecContextRec): Fix type of `cvtSize'.
Werner Lemberg 888cd184 2010-07-08T07:29:42 Fix Savannah bug #30361. * src/truetype/ttinterp.c (Ins_IUP): Fix bounds check.
Werner Lemberg a2d225e3 2010-07-01T11:37:09 [truetype] Protect against code range underflow. * src/truetype/ttinterp.c (DO_JROT, DO_JMPR, DO_JROF): Don't allow negative IP values.
Werner Lemberg 462ddb40 2010-07-01T11:28:43 [truetype] Add rudimentary tracing for bytecode instructions. * src/truetype/ttinterp.c (opcode_name) [FT_DEBUG_LEVEL_TRACE]: New array. (TT_RunIns): Trace opcodes.
Werner Lemberg 370aea80 2010-06-08T08:37:11 Formatting.
Werner Lemberg 6da023d1 2010-05-20T15:38:00 TrueType: Make FreeType ignore maxSizeOfInstructions in `maxp'. Acroread does the same. * src/truetype/ttgload.c (TT_Process_Composite_Glyph): Call `Update_Max' to adjust size of instructions array if necessary and add a rough safety check. (load_truetype_glyph): Save `loader->byte_len' before recursive call. * src/truetype/ttinterp.h, src/truetype/ttinterp.c (Update_Max): Declare it as FT_LOCAL.
suzuki toshiya a1151420 2009-08-01T00:32:18 truetype: Check invalid function number in IDEF instruction.
suzuki toshiya d1c23082 2009-08-01T00:32:17 truetype: Check invalid function number in FDEF instruction.
suzuki toshiya 6dc27526 2009-08-01T00:32:15 truetype: Cast the numerical operands to 32-bit for LP64 systems.
suzuki toshiya 3b56c4d3 2009-08-01T00:32:15 truetype: Cast the project vector to 32-bit for LP64 system.
Werner Lemberg c6788a38 2009-06-07T13:09:21 Fix some potential out-of-memory crashes. * src/base/ftobjs.c (ft_glyphslot_done): Check `slot->internal'. * src/base/ftstream.c (FT_Stream_ReleaseFrame): Check `stream'. * src/truetype/ttinterp.c (TT_New_Context): Avoid double-free of `exec' in case of failure.
Werner Lemberg 1e5e7aa0 2009-01-25T16:27:04 Fix SCANCTRL handling in TTFs. Problem reported by Alexey Kryukov <anagnost@yandex.ru>. * src/truetype/ttinterp.c (Ins_SCANCTRL): Fix threshold handling.
Werner Lemberg 1a5d561d 2008-11-29T22:50:24 * src/autofit/afcjk.c, src/base/ftoutln.c, src/base/ftrfork.c, src/bdf/bdfdrivr.c, src/gxvalid/gxvmorx.c, src/otvalid/otvmath.c, src/pcf/pcfdrivr.c, src/psnames/pstables.h, src/smooth/ftgrays.c, src/tools/glnames.py, src/truetype/ttinterp.c, src/type1/t1load.c, src/type42/t42objs.c, src/winfonts/winfnt.c: Fix compiler warnings (Atari PureC).
Werner Lemberg 105721a5 2008-11-15T10:35:51 * src/truetype/ttinterp.c (tt_default_graphics_state): The default value for `scan_type' is zero, as confirmed by Greg Hitchcock from Microsoft. Problem reported by Michal Nowakowski <miszka@limes.com.pl>.
Werner Lemberg ce8853af 2008-06-24T11:19:03 * src/truetype/ttinterp. (Ins_SCANTYPE): Don't check rendering mode. * src/raster/ftraster.c (Render_Glyph, Render_Gray_Glyph, Draw_Sweep): No-dropout mode is value 2, not value 0. (Draw_Sweep): Really skip dropout handling for no-dropout mode.
Werner Lemberg 5df5dbb7 2008-06-22T13:40:08 Enable access to the various dropout rules of the B&W rasterizer. Pass dropout rules from the TT bytecode interpreter to the rasterizer; temporarily this is enabled only if `USE_SCAN_CONVERSION_RULES' is defined. * include/freetype/ftimage.h (FT_OUTLINE_SMART_DROPOUTS, FT_OUTLINE_EXCLUDE_STUBS): New flags for for FT_Outline. * src/raster/ftraster.c (Vertical_Sweep_Drop, Horizontal_Sweep_Drop, Horizontal_Gray_Sweep_Drop): Use same mode numbers as given in the OpenType specification. Fix mode 4 computation. (Render_Glyph, Render_Gray_Glyph): Handle new outline flags. * src/truetype/ttgload.c (TT_Load_Glyph) [USE_SCAN_CONVERSION_RULES]: Convert scan conversion mode to FT_OUTLINE_XXX flags. * src/truetype/ttinterp.c (Ins_SCANCTRL): Enable ppem check.
Werner Lemberg 7cb9ec0f 2008-06-09T20:49:29 * src/type1/t1parse.h (T1_ParserRec): Make `base_len' and `private_len' unsigned. * src/type1/t1parse.c (read_pfb_tag): Make `asize' unsigned and read it as such. (T1_New_Parser, T1_Get_Private_Dict): Make `size' unsigned. * src/base/ftstream.c (FT_Stream_Skip): Reject negative values. * src/type1/t1load.c (parse_blend_design_positions): Check `n_axis' for sane value. Fix typo. * src/psaux/psobjs.c (ps_table_add): Check `idx' correctly. * src/truetype/ttinterp (Ins_SHC): Use BOUNDS() to check `last_point'. * src/sfnt/ttload.c (tt_face_load_max_profile): Limit `maxTwilightPoints'.
Werner Lemberg d77e7229 2008-06-05T22:07:19 * src/truetype/ttinterp.c (Ins_IP): Handle case `org_dist == 0' correctly. This fixes glyphs `t' and `h' of Arial Narrow at 12ppem.
Werner Lemberg 2b0b4221 2008-05-28T22:17:28 Cosmetic code changes.
Werner Lemberg c94fa669 2008-05-27T23:24:07 * src/truetype/ttinterp.c (Ins_MD): The MD instruction also uses original, unscaled input values. Confirmed by Greg Hitchcock from Microsoft.
Werner Lemberg 28464c48 2008-02-18T20:34:42 * src/truetype/ttinterp.c (Ins_IUP): Check number of points. Fix from Savannah bug #22356.
David Turner 74cc0e9e 2007-06-30T22:54:12 * src/truetype/ttinterp.c: add missing variable initialization, gets rid of Valgrind fixes. * src/autofit/aflatin.c: get rid of an infinite loop in the case of degenerate fonts.
Werner Lemberg e12ed563 2007-06-17T05:31:23 * src/tools/ftrandom.c (font_size): New global variable. (TestFace): Use it. (main): Handle new option `--size' to set `font_size'. (Usage): Updated. Formatting.
David Turner 815911ae 2007-06-16T17:07:20 * src/truetype/ttgload.c (TT_Load_Simple_Glyph): check the well-formedness of the contours array when loading a glyph * src/truetype/ttinterp.c (Ins_IP): check argument ranges to reject bogus operations properly
Werner Lemberg c793d90f 2007-06-01T20:51:11 * src/truetype/ttinterp.c (Null_Vector, NULL_Vector): Removed, unused.
Werner Lemberg 94be20ea 2007-05-09T20:02:55 * src/truetype/ttinterp.c (Ins_IP), src/autofit/aflatin.c (af_latin_metrics_scale_dim): Fix compiler warnings.
David Turner 3b242d36 2007-03-26T12:03:04 last (tiny) fix to the bytecode interpreter and code cleanup
Werner Lemberg c9f6c66f 2007-03-21T13:30:14 formatting
David Turner 64a9ef20 2007-03-18T07:35:08 another bytecode regression fix. Hopefully, this should be the latest
David Turner 74c34eba 2007-03-18T07:19:31 another bytecode interpreter regression fix
David Turner 89020d97 2007-03-17T17:48:57 fixing TrueType bytecode interpreter regression for HLB_____.TTF, needs more testing with other fonts
Werner Lemberg a091517a 2007-02-16T08:12:50 * src/truetype/ttinterp.c (Ins_MD): Remove unused variable. * src/autofit/aflatin.c (af_latin_hints_link_segments): Ditto.
Werner Lemberg 3cd6cc24 2007-02-16T08:10:17 formatting
David Turner 2c4500e9 2007-02-14T15:08:47 improving TrueType bytecode interpreter to better match Windows behaviour on tricky cases... FIX_BYTECODE is now the default to allow large testing
Werner Lemberg c6a14086 2007-02-12T22:08:15 * src/truetype/ttinterp.c (Project_x, Project_y): Remove compiler warnings. * src/pcf/pcfread.c (pcf_interpret_style), src/bdf/bdfdrivr.c (bdf_interpret_style): Ditto.
Werner Lemberg 406d25f3 2007-02-12T22:01:18 more formatting and copyright years
David Turner 72a0dd24 2007-02-12T15:24:51 some simplifications of the TrueType interpreter projection code (preliminaries to various interpreter fixes)
Werner Lemberg 6e87ed9f 2007-01-26T22:18:56 Spelling fixes from Alexei.
Werner Lemberg 555258ff 2007-01-21T09:46:37 * docs/CHANGES: Document SHZ fix. * src/truetype/ttinterp.c (Ins_SHZ): SHZ doesn't move phantom points.
Werner Lemberg b4142d51 2007-01-17T12:45:26 Whitespace and spelling fixes from Alexei. Formatting, copyright years.
David Turner 22122729 2007-01-16T20:06:44 * src/autofit/aflatin.c, src/cff/cffdriver.c, src/truetype/ttobjs.c, src/truetype/ttinterp.c: fixing compiler warnings
Werner Lemberg 8c4120d0 2007-01-15T06:42:40 Fix various compiler warnings. * src/truetype/ttdriver.c (tt_size_select), src/cff/cffobjs.h, src/cff/cffobjs.c (cff_size_request), src/type42/t42objs.h: s/index/strike_index/. * src/base/ftobjs.c (FT_Match_Size): s/index/size_index/. * src/gxvalid/gxvmorx5.c (gxv_morx_subtable_type5_InsertList_validate): s/index/table_index/. * src/truetype/ttinterp.c (Compute_Point_Displacement), src/pcf/pcfread.c (pcf_seek_to_table_type): Avoid possibly uninitialized variables.
Werner Lemberg 27cf9de1 2007-01-13T07:34:23 formatting, copyright years
David Turner e3654532 2007-01-13T00:19:18 * src/base/ftbitmap.c: fixing memory stomping bug in the bitmap embolderner when the pitch of the source bitmap is *much* larger than its width * src/truetype/ttinterp.c: fixing aliasing-related compilation warning
Werner Lemberg 2bad8ffb 2006-11-22T09:37:03 cosmetics
Werner Lemberg 82ee38e5 2006-11-20T09:19:26 formatting
David Turner 7bab6ae3 2006-11-13T11:25:06 * src/truetype/ttinterp.c: undefined the FIX_BYTECODE macro, since the interpreter "enhancements" are still too buggy for general use
David Turner 6aa260ce 2006-08-25T22:45:13 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
Werner Lemberg 12342996 2006-08-19T11:18:09 formatting
David Turner 33f5f249 2006-08-16T16:50:55 * 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
Werner Lemberg a2da05c2 2006-06-25T06:27:27 Fix two hinting bugs as reported in http://lists.nongnu.org/archive/html/freetype-devel/2006-06/msg00057.html. * include/freetype/internal/tttypes.h (TT_GlyphZoneRec): Add `first_point' member. * src/truetype/ttgload.c (tt_prepare_zone): Initialize `first_point'. (TT_Process_Composite_Glyph): Always untouch points. * src/truetype/ttinterp.c (Ins_SHC): Fix computation of `first_point' and `last_point' in case of composite glyphs. (Ins_IUP): Fix computation of `end_point'.
Werner Lemberg 8e6f8c4d 2006-02-17T08:07:09 Formatting, copyright years, documentation improvements.
Wu, Chia-I (吳佳一) 0d565fdc 2006-02-15T07:44:31 * include/freetype/internal/ftobjs.h (FT_Face_InternalRec): Remove unused `max_points' and `max_contours'. * src/cid/cidobjs.c (cid_face_init), src/type1/t1objs.c (T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Update. * include/freetype/internal/tttypes.h (TT_FaceRec): Remove unused `max_components'. * src/truetype/ttinterp.h (TT_ExecContextRec): Remove unused `loadSize' and `loadStack'. * src/truetype/ttinterp.c (TT_Done_Context, TT_Load_Context), src/sfnt/ttload.c (tt_face_load_maxp): Update. * src/cff/cffobjs.h (cff_size_select), src/sfnt/sfdriver.c (sfnt_interface), src/truetype/ttdriver.c (tt_size_request): Fix compiler errors/warnings when TT_CONFIG_OPTION_EMBEDDED_BITMAPS is not defined. * src/sfnt/ttmtx.c (tt_face_load_hmtx, tt_face_get_metrics): Fix possible segment faults for the non-FT_OPTIMIZE_MEMORY'ed versions. (finally!) For most OpenType tables, `tt_face_load_xxxx' simply loads the table and `face->root' is set later in `sfnt_load_face'. Here, we try to make this work for _all_ tables. * src/sfnt/ttsbit.c, src/sfnt/ttsbit0.c, src/sfnt/ttload.c, src/sfnt/ttmtx.c: all `tt_face_load_xxxx' should load the table and then exit. Error handling or setting face->root is done later in `sfnt_load_face'. Pretty trace messages. * src/sfnt/sfobjs.c (sfnt_load_face): Work harder. Mac bitmap-only fonts are not scalable. Check that `face->header.Units_Per_EM' is not zero. (LOAD_, LOADM_): Pretty trace messages. * src/sfnt/ttsbit0.c (tt_face_load_strike_metrics): Read metrics from `eblc'. * src/sfnt/ttcmap.c (tt_face_build_cmaps), src/sfnt/ttpost.c (load_format_20, load_format_25, tt_face_get_ps_name): Use face->max_profile.numGlyphs, instead of face->root.num_glyphs.
Wu, Chia-I (吳佳一) ce34d122 2005-12-17T13:12:49 * src/truetype/ttinterp.c (Update_Max): Set current size of buffer correctly (so that memory debug system won't panic).
Werner Lemberg 674ba91f 2005-11-16T18:09:27 formatting
David Turner f7cc1814 2005-11-15T17:30:56 * src/base/fttrigon.c (ft_trig_prenorm): fixed a bug that created invalid computations, resulting in very weird bugs in TrueType bytecode hinted fonts * src/truetype/ttinterp.c: redefined FT_UNUSED_EXEC to not perform a structure copy each time. Wooot. !
Wu, Chia-I (吳佳一) d6d73989 2005-08-16T02:06:01 * src/truetype/ttinterp.c, src/truetype/ttinterp.h: Update copyright messages.
Wu, Chia-I (吳佳一) 0142e6af 2005-08-16T01:54:59 * 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.
Werner Lemberg 33febc0f 2004-10-09T07:07:43 * docs/CHANGES: Updated. Fix handling of NPUSHW if skipped in data stream. * src/truetype/ttinterp.c (opcode_length): Set value for NPUSHW to -2. (SkipCode, TT_RunIns): Use opcode_length value for computation of bytes to be skipped.
Werner Lemberg dea712b4 2004-08-07T15:08:33 `Activate' gray-scale specifing hinting within the TrueType bytecode interpreter. This is an experimental feature which should probably be made optional. * src/truetype/ttgload.c (TT_Process_Simple_Glyph, load_truetype_glyph): Move the code to set the pedantic_hinting flag to... (TT_Load_Glyph): Here. Set `grayscale' flag except for `FT_LOAD_TARGET_MONO'. * src/truetyep/ttinterp.c (Ins_GETINFO): Return MS rasterizer version 1.7. Return rotation and stretching info only if glyph is rotated or stretched, respectively. Handle grayscale info. * src/truetype/ttinterp.h (TT_ExecContextRec): Add `grayscale' member.
David Turner 5ab41363 2004-07-18T07:15:18 * include/freetype/cache/ftcglyph.h, src/cache/ftcglyph.c: fixed a dangling pointer bug that happened in very rare cases: i.e. when a new family object was destroyed by an out-of-memory condition during a glyph node initialization. The function FTC_Cache_Lookup would flush the cache and restart the lookup with a bad pointer. * src/cache/ftcmanag.c: fixed a cache flushing bug
Werner Lemberg dfa46199 2004-03-05T09:26:24 * Jamfile, vms_make.com, builds/win32/visualc/freetype.dsp, builds/win32/visualc/freetype/vcproj, include/freetype/ftmoderr.h: Add LZW module. * Jamfile.in: Removed. * docs/CHANGES: Updated. * include/freetype/internal/ftobjs.h: s/MIN/FT_MIN/, s/MAX/FT_MAX/, s/ABS/FT_ABS/. Updated all callers. * src/type1/t1load.c (parse_dict), src/pcf/pcfdrivr.c (PCF_Face_Init): Use FT_ERROR_BASE. Add support for PCF fonts compressed with LZW (extension .pcf.Z, created with `compress'). * include/freetype/config/ftoption.h, devel/ftoption.h (FT_CONFIG_OPTION_USE_LZW): New macro. * include/freetype/ftlzw.h: New file. * include/freetype/config/ftheader.h (FT_LZW_H): New macro for ftlzw.h. * src/lzw/*: New files. * src/pcf/pcfdrivr.c: Include FT_LZW_H. (PCF_Face_Init): Try LZW also. * src/gzip/ftgzip.c: s/0/Gzip_Err_Ok/ where appropriate. Beautify.
Werner Lemberg 6cda9c48 2004-01-22T09:07:12 * include/freetype/ftcache.h: Delete duplicated definition of FTC_FaceID. * src/cff/cffdrivr.c (cff_get_cmap_info): Call sfnt module's TT CMap Info service function if the cmap comes from sfnt. Return 0 if the cmap is sythesized in cff module. Formatting; updating copyright.
David Turner 4632fccb 2004-01-15T19:07:44 * include/freetype/internal/ftmemory.h, src/autohint/ahhint.c, src/base/ftgloadr.c, src/base/ftglyph.c, src/base/ftoutln.c, src/base/ftstroke.c, src/cff/cffload.c, src/truetype/ttgload.c, src/truetype/ttinterp.c: introducing the new FT_ARRAY_COPY and FT_ARRAY_MOVE macros to make copying arrays easier
David Turner 87c0d30f 2003-12-24T01:10:46 * include/freetype/fttypes.h src/autofit/afangles.c src/autofit/aflatin.c src/autohint/ahglyph.c src/autohint/ahhint.c src/base/ftcalc.c src/base/ftgloadr.c src/base/ftglyph.c src/base/ftobjs.c src/base/ftsynth.c src/base/fttrigon.c src/cff/cffgload.c src/cid/cidgload.c src/cid/cidload.c src/pfr/pfrgload.c src/pfr/pfrload.c src/pfr/pfrsbit.c src/psaux/psobjs.c src/pshinter/pshalgo.c src/pshinter/pshglob.c src/pshinter/pshrec.c src/raster/ftrend1.c src/sfnt/ttcmap0.c src/smooth/ftsmooth.c src/truetype/ttdriver.c src/truetype/ttgload.c src/truetype/ttinterp.c src/truetype/ttobjs.c src/type1/t1gload.c src/winfonts/winfnt.c: use of the FT_PAD_XXX and FT_PIX_XXX macros to avoid compiler warnings with very pedantic compilers. Hints: (x) & -64 will warn if (x) is not signed.. use (x) & ~63 instead !
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