/**************************************************************************** * * psft.c * * FreeType Glue Component to Adobe's Interpreter (body). * * Copyright 2013-2014 Adobe Systems Incorporated. * * This software, and all works of authorship, whether in source or * object code form as indicated by the copyright notice(s) included * herein (collectively, the "Work") is made available, and may only be * used, modified, and distributed under the FreeType Project License, * LICENSE.TXT. Additionally, subject to the terms and conditions of the * FreeType Project License, each contributor to the Work hereby grants * to any individual or legal entity exercising permissions granted by * the FreeType Project License and this section (hereafter, "You" or * "Your") a perpetual, worldwide, non-exclusive, no-charge, * royalty-free, irrevocable (except as stated in this section) patent * license to make, have made, use, offer to sell, sell, import, and * otherwise transfer the Work, where such license applies only to those * patent claims licensable by such contributor that are necessarily * infringed by their contribution(s) alone or by combination of their * contribution(s) with the Work to which such contribution(s) was * submitted. If You institute patent litigation against any entity * (including a cross-claim or counterclaim in a lawsuit) alleging that * the Work or a contribution incorporated within the Work constitutes * direct or contributory patent infringement, then any patent licenses * granted to You under this License for that Work shall terminate as of * the date such litigation is filed. * * By using, modifying, or distributing the Work you indicate that you * have read and understood the terms and conditions of the * FreeType Project License as well as those provided in this section, * and you accept them fully. * */ #include "psft.h" #include <freetype/internal/ftdebug.h> #include "psfont.h" #include "pserror.h" #include "psobjs.h" #include "cffdecode.h" #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT #include <freetype/ftmm.h> #include <freetype/internal/services/svmm.h> #endif #include <freetype/internal/services/svcfftl.h> #define CF2_MAX_SIZE … /* * This check should avoid most internal overflow cases. Clients should * generally respond to `Glyph_Too_Big' by getting a glyph outline * at EM size, scaling it and filling it as a graphics operation. * */ static FT_Error cf2_checkTransform( const CF2_Matrix* transform, CF2_Int unitsPerEm ) { … } static void cf2_setGlyphWidth( CF2_Outline outline, CF2_Fixed width ) { … } /* Clean up font instance. */ static void cf2_free_instance( void* ptr ) { … } /********************************************* * * functions for handling client outline; * FreeType uses coordinates in 26.6 format * */ static void cf2_builder_moveTo( CF2_OutlineCallbacks callbacks, const CF2_CallbackParams params ) { … } static void cf2_builder_lineTo( CF2_OutlineCallbacks callbacks, const CF2_CallbackParams params ) { … } static void cf2_builder_cubeTo( CF2_OutlineCallbacks callbacks, const CF2_CallbackParams params ) { … } static void cf2_outline_init( CF2_Outline outline, FT_Memory memory, FT_Error* error ) { … } /* get scaling and hint flag from GlyphSlot */ static void cf2_getScaleAndHintFlag( PS_Decoder* decoder, CF2_Fixed* x_scale, CF2_Fixed* y_scale, FT_Bool* hinted, FT_Bool* scaled ) { … } /* get units per em from `FT_Face' */ /* TODO: should handle font matrix concatenation? */ static FT_UShort cf2_getUnitsPerEm( PS_Decoder* decoder ) { … } /* Main entry point: Render one glyph. */ FT_LOCAL_DEF( FT_Error ) cf2_decoder_parse_charstrings( PS_Decoder* decoder, FT_Byte* charstring_base, FT_ULong charstring_len ) { … } /* get pointer to current FreeType subfont (based on current glyphID) */ FT_LOCAL_DEF( CFF_SubFont ) cf2_getSubfont( PS_Decoder* decoder ) { … } /* get pointer to VStore structure */ FT_LOCAL_DEF( CFF_VStore ) cf2_getVStore( PS_Decoder* decoder ) { … } /* get maxstack value from CFF2 Top DICT */ FT_LOCAL_DEF( FT_UInt ) cf2_getMaxstack( PS_Decoder* decoder ) { … } #ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT /* Get normalized design vector for current render request; */ /* return pointer and length. */ /* */ /* Note: Uses FT_Fixed not CF2_Fixed for the vector. */ FT_LOCAL_DEF( FT_Error ) cf2_getNormalizedVector( PS_Decoder* decoder, CF2_UInt *len, FT_Fixed* *vec ) { … } #endif /* get `y_ppem' from `CFF_Size' */ FT_LOCAL_DEF( CF2_Fixed ) cf2_getPpemY( PS_Decoder* decoder ) { … } /* get standard stem widths for the current subfont; */ /* FreeType stores these as integer font units */ /* (note: variable names seem swapped) */ FT_LOCAL_DEF( CF2_Fixed ) cf2_getStdVW( PS_Decoder* decoder ) { … } FT_LOCAL_DEF( CF2_Fixed ) cf2_getStdHW( PS_Decoder* decoder ) { … } /* note: FreeType stores 1000 times the actual value for `BlueScale' */ FT_LOCAL_DEF( void ) cf2_getBlueMetrics( PS_Decoder* decoder, CF2_Fixed* blueScale, CF2_Fixed* blueShift, CF2_Fixed* blueFuzz ) { … } /* get blue values counts and arrays; the FreeType parser has validated */ /* the counts and verified that each is an even number */ FT_LOCAL_DEF( void ) cf2_getBlueValues( PS_Decoder* decoder, size_t* count, FT_Pos* *data ) { … } FT_LOCAL_DEF( void ) cf2_getOtherBlues( PS_Decoder* decoder, size_t* count, FT_Pos* *data ) { … } FT_LOCAL_DEF( void ) cf2_getFamilyBlues( PS_Decoder* decoder, size_t* count, FT_Pos* *data ) { … } FT_LOCAL_DEF( void ) cf2_getFamilyOtherBlues( PS_Decoder* decoder, size_t* count, FT_Pos* *data ) { … } FT_LOCAL_DEF( CF2_Int ) cf2_getLanguageGroup( PS_Decoder* decoder ) { … } /* convert unbiased subroutine index to `CF2_Buffer' and */ /* return 0 on success */ FT_LOCAL_DEF( CF2_Int ) cf2_initGlobalRegionBuffer( PS_Decoder* decoder, CF2_Int subrNum, CF2_Buffer buf ) { … } /* convert AdobeStandardEncoding code to CF2_Buffer; */ /* used for seac component */ FT_LOCAL_DEF( FT_Error ) cf2_getSeacComponent( PS_Decoder* decoder, CF2_Int code, CF2_Buffer buf ) { … } FT_LOCAL_DEF( void ) cf2_freeSeacComponent( PS_Decoder* decoder, CF2_Buffer buf ) { … } FT_LOCAL_DEF( FT_Error ) cf2_getT1SeacComponent( PS_Decoder* decoder, FT_UInt glyph_index, CF2_Buffer buf ) { … } FT_LOCAL_DEF( void ) cf2_freeT1SeacComponent( PS_Decoder* decoder, CF2_Buffer buf ) { … } FT_LOCAL_DEF( CF2_Int ) cf2_initLocalRegionBuffer( PS_Decoder* decoder, CF2_Int subrNum, CF2_Buffer buf ) { … } FT_LOCAL_DEF( CF2_Fixed ) cf2_getDefaultWidthX( PS_Decoder* decoder ) { … } FT_LOCAL_DEF( CF2_Fixed ) cf2_getNominalWidthX( PS_Decoder* decoder ) { … } FT_LOCAL_DEF( void ) cf2_outline_reset( CF2_Outline outline ) { … } FT_LOCAL_DEF( void ) cf2_outline_close( CF2_Outline outline ) { … } /* END */
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