src/truetype/ttinterp.h


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 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.
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 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.
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 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) 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 85cc0a32 2004-11-23T22:10:21 * src/truetype/ttinterp.h: Fix typo.
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.
Werner Lemberg be67c4ef 2003-11-24T22:54:58 * src/truetype/ttinterp.c (CUR_Func_move_orig): New macro. (Direct_Move_Orig, Direct_Move_Orig_X, Direct_Move_Orig_Y): New functions. Similar to Direct_Move, Direct_Move_X, and Direct_Move_Y but without touching. (Compute_Funcs): Use new functions. (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): Fix rounding of value zero. (DO_DIV): Don't use TT_MULDIV. (Ins_SHC): This instruction actually touches the points. (Ins_MSIRP): Fix undocumented behaviour. * src/truetype/ttinterp.h (TT_ExecContextRec): Updated. * docs/VERSION.DLL: Updated. * src/base/ftobjs.c (FT_Set_Char_Size): Make metrics->x_scale and metrics->y_scale really precise. (FT_Load_Glyph): Update computation of linearHoriAdvance and linearVertAdvance. * src/true/type/ttinterp.c (Update_Max): Use FT_REALLOC.
Werner Lemberg 91db04cb 2002-04-01T14:25:28 * src/truetype/ttgload.c: 16bit fixes. (TT_Load_Simple_Glyph): Improve debug messages. (load_truetype_glyph): Remove dead code. * src/truetype/ttinterp.c: 16bit fixes. * src/truetype/ttobjs.c: Ditto. * include/freetype/ftsnames.h, include/freetype/internal/sfnt.h, src/cff/cffload.h, src/psaux/psobjs.h, src/truetype/ttinterp.[ch], src/sfnt/ttpost.h: s/index/idx/. formatting, copyright updates.
David Turner b5713c54 2002-03-14T11:26:29 * include/freetype/internal/psglobals.h (removed), include/freetype/internal/pshints.h, src/pshinter/pshglob.h: removing obsolete file * include/freetype/internal/tttypes.h, include/freetype/internal/sfnt.h, src/base/ftnames.c, src/cff/cffdrivr.c, src/sfnt/*.c, src/truetype/*.c: updated SFNT/TrueType type definitions
David Turner bc82f1bb 2002-03-01T02:26:22 * include/freetype/ftconfig.h: changed FT_LOCAL xxxx to FT_LOCAL( xxxx ) everywhere in the source. Sames goes for FT_LOCAL_DEF xxxx translated into FT_LOCAL_DEF( xxxxx )
Werner Lemberg 28df3070 2001-08-22T18:35:06 * src/truetype/ttinterp.h: Fix prototype of TT_Move_Func. Some formatting
Werner Lemberg 415235df 2001-06-28T17:49:10 finishing function header formatting updating copyrights
Werner Lemberg 4a2305cf 2001-06-28T07:17:51 formatting
David Turner 8d3a401f 2001-03-20T11:14:24 * builds/*/*-def.mk: changed the objects directory from "obj" to "objs" * include/freetype/config/ftheader.h: removed obsolete macros like FT_SOURCE_FILE, etc.. and added cache-specific macro definitions that were previously defined in <freetype/ftcache.h>. Added comments to be included in a new API Reference section. * src/*/*: removed the use of FT_SOURCE_FILE, etc.. now, each component needs to added its own directory to the include path at compile time. Modified all "rules.mk" and "descrip.mms" accordingly..
David Turner 170c0d4c 2000-12-13T19:55:11 * include/freetype/config/ft2build.h, include/freetype/internal/internal.h: fixed header inclusion macros to use direct definitions. This is the only way to do these things in a portable way :-( The rest of the code should follow shortly though everything compiles now.. * builds/compiler/intelc.mk, builds/compiler/watcom.mk, builds/win32/detect.mk: added support for the Intel C/C++ compiler, as well as _preliminary_ (read: doesn't work !!) support for Watcom. Also added a new setup target. Type "make setup list" for a list of supported command-line compilers on Win32..
Werner Lemberg d5c1b27d 2000-12-12T22:28:12 * include/freetype/config/ft2build.h (FT2_ROOT, FT2_CONFIG_ROOT): Removed. ANSI C doesn't (explicitly) allow macro expansion in arguments using `##'. (FT2_PUBLIC_FILE, FT2_CONFIG_FILE, FT2_INTERNAL_FILE): Use directory names directly. Make them configurable. Use `##' to strip leading and trailing spaces from arguments. * builds/unix/ft2unix.h: Adapted. * src/base/ftsystem.c (ft_alloc, ft_realloc, ft_free, ft_io_stream, ft_close_stream): Use FT_CALLBACK_DEF. * builds/unix/ftsystem.c: Use new header scheme. (FT_Done_Memory): Use free() from FT_Memory structure. * src/base/ftinit.c, src/base/ftmac.c: Header scheme fixes. * include/freetype/config/ft2build.h (FT2_CONFIG_ROOT, FT2_PUBLIC_FILE, FT2_CONFIG_FILE, FT2_INTERNAL_FILE, FT_SOURCE_FILE): Use `##' operator to be really ANSI C compliant.
Werner Lemberg 90d9964e 2000-12-09T00:45:38 * */*.h: Changed body inclusion macro names to start and end with `__' (those which haven't converted yet). Fixed minor conversion issues. * src/winfonts/winfnt.c: Updated to new header inclusion scheme. * */*.[ch]: Changed source files to adhere to the new * src/cff/cff.c, src/cff/rules.mk: Updated. * */*.[ch]: Now using <ft2build.h> as the default build and setup
Werner Lemberg cc069beb 2000-12-08T16:17:16 cleanups
David Turner 19ed8afe 2000-12-08T02:42:29 - updated all source files to adhere to the new inclusion scheme - the CFF loader now loads the encodings and charset tables though doesn't use them for now
Werner Lemberg 90a03301 2000-11-07T17:21:11 All function comments are now removed from source files (and moved to the header files if necessary). Some minor fixes to have `make multi' run successfully (with gcc and g++). Fixing compiler warnings.
David Turner 76a5f623 2000-11-04T01:55:49 major reformatting of the sources: FT_EXPORT_DEF => FT_EXPORT FT_EXPORT_FUNC => FT_EXPORT_DEF BASE_DEF => FT_BASE BASE_FUNC => FT_BASE_DEF LOCAL_DEF => FT_LOCAL LOCAL_FUNC => FT_LOCAL_DEF LOCAL_FUNC_X => FT_CALLBACK_DEF LOCAL_DEF_X => FT_CALLBACK_TABLE FT_CPLUSPLUS => FT_CALLBACK_TABLE_DEF
Werner Lemberg 7fa51b55 2000-07-08T19:51:42 Formatting. Adding some trivial error checking. Adding/Fixing tracing levels.
David Turner a90663f5 2000-07-08T00:41:13 vast clean-up of the sources in order to allow flat directory compilation (by defining the FT_FLAT_COMPILE macro at compile time..) moved "freetype2/BUILD" to "freetype2/docs/BUILD"
Werner Lemberg bd5ae400 2000-07-05T04:32:02 Run g++ on the FreeType library. This should make the use of code in C++ programs easier: Renamed FT_WordXX to FT_UIntXX. Changed a lot of void* to FT_Byte* if related to i/o streams -- FreeType always accesses streams byte-wise, so this makes sense IMHO. Added a lot of #ifdef __cplusplus to header files (and removed a few). Other minor syntax fixes (mostly casts). Replaced the variable `private' with `private_dict' -- `private' is reserved in C++.
Werner Lemberg 5811c7c3 2000-07-02T13:53:16 Formatting. Fixed some errors which prevented compiling.
David Turner f9b8dec4 2000-06-16T19:34:52 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
Werner Lemberg 78575dc0 2000-06-12T19:36:41 A lot of formatting. Added more tracing levels. More Makefile fixes. Minor other changes.
David Turner 1fb6eea7 2000-05-24T00:31:14 EXPORT_DEF renamed to FT_EXPORT_DEF + reformating/spacing
David Turner bfe2f98f 2000-05-12T12:17:15 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..
David Turner 08fdac98 2000-02-21T16:01:33 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
David Turner d2b1f357 1999-12-16T23:11:37 Initial revision