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[GSoC] src/*.*: Convert block comments to `light' style. This monster commit was created by applying Nikhil's scripts `docconverter.py' and `markify.py' to all C header and source files, followed up by minor manual clean-up. No change in functionality, of course. I used commit f7419907bc6044b9b7057f9789866426c804ba82 from https://github.com/nikramakrishnan/freetype-docs.git.
2018-06-03 09:01:17 +02:00
/****************************************************************************
*
* truetype.c
*
* FreeType TrueType driver component (body only).
*
Update all copyright notices.
2022-01-11 10:54:10 +01:00
* Copyright (C) 1996-2022 by
[GSoC] src/*.*: Convert block comments to `light' style. This monster commit was created by applying Nikhil's scripts `docconverter.py' and `markify.py' to all C header and source files, followed up by minor manual clean-up. No change in functionality, of course. I used commit f7419907bc6044b9b7057f9789866426c804ba82 from https://github.com/nikramakrishnan/freetype-docs.git.
2018-06-03 09:01:17 +02:00
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
Initial revision
1999-12-17 00:11:37 +01:00
#define FT_MAKE_OPTION_SINGLE_OBJECT
Improve `make multi'. * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/sfnt/pngshim.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. * src/sfnt/ttbdf.c: Avoid empty source file. * src/sfnt/ttpost.c: Guard file with TT_CONFIG_OPTION_POSTSCRIPT_NAMES. * src/sfnt/ttsbit.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS. * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty source file. * src/truetype/ttsubpix.c: Guard file with TT_USE_BYTECODE_INTERPRETER also. * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort entries.
2017-03-18 07:06:49 +01:00
* src/pcf/pcfdrivr.c: Revert change from 2004-04-17. * src/pcf/pcfutil.c: Use FT_LOCAL_DEF. * src/pcf/pcfutil.h: Include FT_CONFIG_CONFIG_H. Use FT_BEGIN_HEADER and FT_END_HEADER. Use FT_LOCAL. 2004-04-24 George Williams <gww@silcom.com> Add support for Apple's distortable font technology (in GX fonts). * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_GX_VAR_SUPPORT): New macro. * include/freetype/ftmm.h (FT_Var_Axis, FT_Var_Named_Style, FT_MM_Var): New structures. (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates): New function declarations. * include/freetype/internal/services/svmm.h (FT_Get_MM_Var_Func, FT_Set_Var_Design_Func): New typedefs. Update MultiMasters service. * include/freetype/internal/tttypes.h [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H. (GX_Blend) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New typedef. (TT_Face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New members `doblend' and `blend'. * include/freetype/tttags.h (TTAG_avar, TTAG_cvar, TTAG_gvar): New macros. * include/freetype/internal/fttrace.h: Add `ttgxvar'. * src/base/ftmm.c (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates): New functions. * src/sfnt/sfobjs.c (sfnt_load_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Set FT_FACE_FLAG_MULTIPLE_MASTERS flag for GX var fonts. * src/truetype/ttgxvar.c, src/truetype/ttgxvar.h: New files. * src/truetype/truetype.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.c. * src/truetype/ttdriver.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H, FT_SERVICE_MULTIPLE_MASTERS_H, and ttgxvar.h. (tt_service_gx_multi_masters) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New service. (tt_services) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated. * src/truetype/ttgload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (TT_Process_Simple_Glyph, load_truetype_glyph) [TT_CONFIG_OPTION_GX_VAR_SUPPORT] :Support GX var fonts. * src/truetype/ttobjs.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (tt_done_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call tt_done_blend. * src/truetype/ttpload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (tt_face_load_cvt) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call tt_face_vary_cvt. * src/truetype/rules.mk (TT_DRV_SRC): Add ttgxvar.c. * src/type1/t1driver.c (t1_service_multi_masters): Add T1_Get_MM_Var and T1_Set_Var_Design. * src/type1/t1load.c (FT_INT_TO_FIXED, FT_FIXED_TO_INT): New macros. (T1_Get_MM_Var, T1_Set_Var_Design): New functions. * src/type1/t1load.h (T1_Get_MM_Var, T1_Set_Var_Design): New function declarations.
2004-04-25 22:15:11 +02:00
#include "ttdriver.c" /* driver interface */
#include "ttgload.c" /* glyph loader */
Improve `make multi'. * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/sfnt/pngshim.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. * src/sfnt/ttbdf.c: Avoid empty source file. * src/sfnt/ttpost.c: Guard file with TT_CONFIG_OPTION_POSTSCRIPT_NAMES. * src/sfnt/ttsbit.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS. * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty source file. * src/truetype/ttsubpix.c: Guard file with TT_USE_BYTECODE_INTERPRETER also. * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort entries.
2017-03-18 07:06:49 +01:00
#include "ttgxvar.c" /* gx distortable font */
* 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..
2001-03-20 12:14:24 +01:00
#include "ttinterp.c"
Improve `make multi'. * src/autofit/aflatin2.c: Guard file with FT_OPTION_AUTOFIT2. * src/base/ftmac.c: Guard more parts of the file with FT_MACINTOSH. * src/psaux/afmparse.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/sfnt/pngshim.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS also. * src/sfnt/ttbdf.c: Avoid empty source file. * src/sfnt/ttpost.c: Guard file with TT_CONFIG_OPTION_POSTSCRIPT_NAMES. * src/sfnt/ttsbit.c: Guard file with TT_CONFIG_OPTION_EMBEDDED_BITMAPS. * src/truetype/ttgxvar.c, src/truetype/ttinterp.c: Avoid empty source file. * src/truetype/ttsubpix.c: Guard file with TT_USE_BYTECODE_INTERPRETER also. * src/type1/t1afm.c: Guard file with T1_CONFIG_OPTION_NO_AFM. * src/autofit/autofit.c, src/base/ftbase.c, src/cache/ftcache.c, src/cff/cff.c, src/cid/type1cid.c, src/gxvalid/gxvalid.c, src/pcf/pcf.c, src/pfr/pfr.c, src/psaux/psaux.c, src/pshinter/pshinter.c, src/psnames/psnames.c, src/raster/raster.c, src/sfnt/sfnt.c, src/smooth/smooth.c, src/truetype/truetype.c, src/type1/type1.c, src/type42/type42.c: Remove conditionals; sort entries.
2017-03-18 07:06:49 +01:00
#include "ttobjs.c" /* object manager */
#include "ttpload.c" /* tables loader */
[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.
2012-06-18 10:36:06 +02:00
#include "ttsubpix.c"
* src/pcf/pcfdrivr.c: Revert change from 2004-04-17. * src/pcf/pcfutil.c: Use FT_LOCAL_DEF. * src/pcf/pcfutil.h: Include FT_CONFIG_CONFIG_H. Use FT_BEGIN_HEADER and FT_END_HEADER. Use FT_LOCAL. 2004-04-24 George Williams <gww@silcom.com> Add support for Apple's distortable font technology (in GX fonts). * devel/ftoption.h, include/freetype/config/ftoption.h (TT_CONFIG_OPTION_GX_VAR_SUPPORT): New macro. * include/freetype/ftmm.h (FT_Var_Axis, FT_Var_Named_Style, FT_MM_Var): New structures. (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates): New function declarations. * include/freetype/internal/services/svmm.h (FT_Get_MM_Var_Func, FT_Set_Var_Design_Func): New typedefs. Update MultiMasters service. * include/freetype/internal/tttypes.h [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H. (GX_Blend) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New typedef. (TT_Face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New members `doblend' and `blend'. * include/freetype/tttags.h (TTAG_avar, TTAG_cvar, TTAG_gvar): New macros. * include/freetype/internal/fttrace.h: Add `ttgxvar'. * src/base/ftmm.c (FT_Get_MM_Var, FT_Set_Var_Design_Coordinates, FT_Set_Var_Blend_Coordinates): New functions. * src/sfnt/sfobjs.c (sfnt_load_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Set FT_FACE_FLAG_MULTIPLE_MASTERS flag for GX var fonts. * src/truetype/ttgxvar.c, src/truetype/ttgxvar.h: New files. * src/truetype/truetype.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.c. * src/truetype/ttdriver.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include FT_MULTIPLE_MASTERS_H, FT_SERVICE_MULTIPLE_MASTERS_H, and ttgxvar.h. (tt_service_gx_multi_masters) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: New service. (tt_services) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Updated. * src/truetype/ttgload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (TT_Process_Simple_Glyph, load_truetype_glyph) [TT_CONFIG_OPTION_GX_VAR_SUPPORT] :Support GX var fonts. * src/truetype/ttobjs.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (tt_done_face) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call tt_done_blend. * src/truetype/ttpload.c [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Include ttgxvar.h. (tt_face_load_cvt) [TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Call tt_face_vary_cvt. * src/truetype/rules.mk (TT_DRV_SRC): Add ttgxvar.c. * src/type1/t1driver.c (t1_service_multi_masters): Add T1_Get_MM_Var and T1_Set_Var_Design. * src/type1/t1load.c (FT_INT_TO_FIXED, FT_FIXED_TO_INT): New macros. (T1_Get_MM_Var, T1_Set_Var_Design): New functions. * src/type1/t1load.h (T1_Get_MM_Var, T1_Set_Var_Design): New function declarations.
2004-04-25 22:15:11 +02:00
cleanups
2000-12-08 17:17:16 +01:00
Initial revision
1999-12-17 00:11:37 +01:00
/* END */