edf4014854
The font variation code. All parts dependent on the GX code in the `truetype' module are guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT. In other words, you can still compile the `cff' module without defining TT_CONFIG_OPTION_GX_VAR_SUPPORT (which brings you CFF2 support without font variation). * src/cff/cf2font.c (cf2_font_setup): Add support for font variation. * src/cff/cf2font.h (CF2_Font): Add fields for variation data. * src/cff/cf2ft.c (cf2_free_instance): Free blend data. (cf2_getVStore, cf2_getNormalizedVector): New functions. * src/cff/cf2ft.h: Updated. * src/cff/cf2intrp.c: Include `cffload.h'. (cf2_cmdRESERVED_15, cf2_cmdRESERVED_16): Replace with... (cf2_cmdVSINDEX, cf2_cmdBLEND): ... this new enum values. (cf2_doBlend): New function. (cf2_interpT2CharString): Handle `vsindex' and `blend' opcodes. * src/cff/cffload.c (FT_fdot14ToFixed): New macro. (cff_vstore_done, cff_vstore_load): New functions. (cff_blend_clear, cff_blend_doBlend, cff_blend_build_vector, cff_blend_check_vector): New functions. (cff_load_private_dict): Add arguments for blend vector. Handle blend data. (cff_subfont_load, cff_subfont_done): Updated. (cff_font_load): Handle CFF2 variation store data. (cff_font_done): Updated. * src/cff/cffload.h: Include `cffparse.h'. Updated. * src/cff/cffobjs.c (cff_face_done): Updated. * src/cff/cffparse.c: Include `cffload.h'. (cff_parse_num): Handle internal value 255. (cff_parse_vsindex, cff_parse_blend): New functions. (CFF_FIELD_BLEND): New macro. (cff_parser_run): Updated. * src/cff/cffparse.h (cff_kind_blend): New enum value. * src/cff/cfftoken.h: Handle `vstore', `vsindex', and `blend' dictionary values. * src/cff/cfftypes.h (CFF_VarData, CFF_AxisCoords, CFF_VarRegion, CFF_VStore, CFF_Blend): New structures. (CFF_FontRecDict): Add `vstore_offset' field. (CFF_Private): Add `vsindex' field. (CFF_SubFont): Add fields for blend data. (CFF_Font): Add `vstore' field. * src/truetype/ttgxvar.c (TT_Get_MM_Var): `CFF2' is equal to `gvar', since glyph variation data is directly embedded. (TT_Set_MM_Blend): Don't load `gvar' table for CFF2 fonts.
160 lines
5.9 KiB
C
160 lines
5.9 KiB
C
/***************************************************************************/
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/* */
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/* cf2ft.h */
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/* */
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/* FreeType Glue Component to Adobe's Interpreter (specification). */
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/* */
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/* Copyright 2013 Adobe Systems Incorporated. */
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/* */
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/* This software, and all works of authorship, whether in source or */
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/* object code form as indicated by the copyright notice(s) included */
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/* herein (collectively, the "Work") is made available, and may only be */
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/* used, modified, and distributed under the FreeType Project License, */
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/* LICENSE.TXT. Additionally, subject to the terms and conditions of the */
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/* FreeType Project License, each contributor to the Work hereby grants */
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/* to any individual or legal entity exercising permissions granted by */
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/* the FreeType Project License and this section (hereafter, "You" or */
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/* "Your") a perpetual, worldwide, non-exclusive, no-charge, */
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/* royalty-free, irrevocable (except as stated in this section) patent */
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/* license to make, have made, use, offer to sell, sell, import, and */
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/* otherwise transfer the Work, where such license applies only to those */
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/* patent claims licensable by such contributor that are necessarily */
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/* infringed by their contribution(s) alone or by combination of their */
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/* contribution(s) with the Work to which such contribution(s) was */
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/* submitted. If You institute patent litigation against any entity */
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/* (including a cross-claim or counterclaim in a lawsuit) alleging that */
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/* the Work or a contribution incorporated within the Work constitutes */
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/* direct or contributory patent infringement, then any patent licenses */
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/* granted to You under this License for that Work shall terminate as of */
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/* the date such litigation is filed. */
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/* */
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/* By using, modifying, or distributing the Work you indicate that you */
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/* have read and understood the terms and conditions of the */
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/* FreeType Project License as well as those provided in this section, */
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/* and you accept them fully. */
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/* */
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/***************************************************************************/
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#ifndef CF2FT_H_
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#define CF2FT_H_
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#include "cf2types.h"
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/* TODO: disable asserts for now */
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#define CF2_NDEBUG
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#include FT_SYSTEM_H
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#include "cf2glue.h"
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#include "cffgload.h" /* for CFF_Decoder */
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FT_BEGIN_HEADER
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FT_LOCAL( FT_Error )
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cf2_decoder_parse_charstrings( CFF_Decoder* decoder,
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FT_Byte* charstring_base,
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FT_ULong charstring_len );
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FT_LOCAL( CFF_SubFont )
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cf2_getSubfont( CFF_Decoder* decoder );
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FT_LOCAL( CFF_VStore )
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cf2_getVStore( CFF_Decoder* decoder );
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FT_LOCAL( FT_UInt )
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cf2_getMaxstack( CFF_Decoder* decoder );
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#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
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FT_LOCAL( FT_Error )
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cf2_getNormalizedVector( CFF_Decoder* decoder,
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CF2_UInt *len,
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FT_Fixed* *vec );
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#endif
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FT_LOCAL( CF2_Fixed )
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cf2_getPpemY( CFF_Decoder* decoder );
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FT_LOCAL( CF2_Fixed )
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cf2_getStdVW( CFF_Decoder* decoder );
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FT_LOCAL( CF2_Fixed )
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cf2_getStdHW( CFF_Decoder* decoder );
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FT_LOCAL( void )
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cf2_getBlueMetrics( CFF_Decoder* decoder,
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CF2_Fixed* blueScale,
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CF2_Fixed* blueShift,
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CF2_Fixed* blueFuzz );
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FT_LOCAL( void )
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cf2_getBlueValues( CFF_Decoder* decoder,
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size_t* count,
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FT_Pos* *data );
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FT_LOCAL( void )
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cf2_getOtherBlues( CFF_Decoder* decoder,
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size_t* count,
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FT_Pos* *data );
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FT_LOCAL( void )
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cf2_getFamilyBlues( CFF_Decoder* decoder,
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size_t* count,
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FT_Pos* *data );
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FT_LOCAL( void )
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cf2_getFamilyOtherBlues( CFF_Decoder* decoder,
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size_t* count,
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FT_Pos* *data );
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FT_LOCAL( CF2_Int )
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cf2_getLanguageGroup( CFF_Decoder* decoder );
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FT_LOCAL( CF2_Int )
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cf2_initGlobalRegionBuffer( CFF_Decoder* decoder,
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CF2_Int subrNum,
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CF2_Buffer buf );
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FT_LOCAL( FT_Error )
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cf2_getSeacComponent( CFF_Decoder* decoder,
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CF2_Int code,
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CF2_Buffer buf );
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FT_LOCAL( void )
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cf2_freeSeacComponent( CFF_Decoder* decoder,
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CF2_Buffer buf );
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FT_LOCAL( CF2_Int )
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cf2_initLocalRegionBuffer( CFF_Decoder* decoder,
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CF2_Int subrNum,
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CF2_Buffer buf );
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FT_LOCAL( CF2_Fixed )
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cf2_getDefaultWidthX( CFF_Decoder* decoder );
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FT_LOCAL( CF2_Fixed )
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cf2_getNominalWidthX( CFF_Decoder* decoder );
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/*
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* FreeType client outline
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*
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* process output from the charstring interpreter
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*/
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typedef struct CF2_OutlineRec_
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{
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CF2_OutlineCallbacksRec root; /* base class must be first */
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CFF_Decoder* decoder;
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} CF2_OutlineRec, *CF2_Outline;
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FT_LOCAL( void )
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cf2_outline_reset( CF2_Outline outline );
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FT_LOCAL( void )
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cf2_outline_close( CF2_Outline outline );
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FT_END_HEADER
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#endif /* CF2FT_H_ */
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/* END */
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