diff options
Diffstat (limited to 'src/3rdparty/freetype/src/psaux/psintrp.c')
-rw-r--r-- | src/3rdparty/freetype/src/psaux/psintrp.c | 243 |
1 files changed, 131 insertions, 112 deletions
diff --git a/src/3rdparty/freetype/src/psaux/psintrp.c b/src/3rdparty/freetype/src/psaux/psintrp.c index da5a8dad1d..6c640eebd5 100644 --- a/src/3rdparty/freetype/src/psaux/psintrp.c +++ b/src/3rdparty/freetype/src/psaux/psintrp.c @@ -1,44 +1,44 @@ -/***************************************************************************/ -/* */ -/* psintrp.c */ -/* */ -/* Adobe's CFF Interpreter (body). */ -/* */ -/* Copyright 2007-2014 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. */ -/* */ -/***************************************************************************/ +/**************************************************************************** + * + * psintrp.c + * + * Adobe's CFF Interpreter (body). + * + * Copyright 2007-2014 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 FT_INTERNAL_DEBUG_H -#include FT_SERVICE_CFF_TABLE_LOAD_H +#include <freetype/internal/ftdebug.h> +#include <freetype/internal/services/svcfftl.h> #include "psglue.h" #include "psfont.h" @@ -52,14 +52,14 @@ #include "t1decode.h" /* for t1 seac */ - /*************************************************************************/ - /* */ - /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ - /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ - /* messages during execution. */ - /* */ + /************************************************************************** + * + * The macro FT_COMPONENT is used in trace mode. It is an implicit + * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log + * messages during execution. + */ #undef FT_COMPONENT -#define FT_COMPONENT trace_cf2interp +#define FT_COMPONENT cf2interp FT_LOCAL_DEF( void ) @@ -287,7 +287,7 @@ { CF2_UInt i; CF2_UInt count = cf2_stack_count( opStack ); - FT_Bool hasWidthArg = (FT_Bool)( count & 1 ); + FT_Bool hasWidthArg = FT_BOOL( count & 1 ); /* variable accumulates delta values from operand stack */ CF2_Fixed position = hintOffset; @@ -364,7 +364,7 @@ if ( doConditionalLastRead ) { - FT_Bool lastIsX = (FT_Bool)( + FT_Bool lastIsX = FT_BOOL( cf2_fixedAbs( SUB_INT32( vals[10], *curX ) ) > cf2_fixedAbs( SUB_INT32( vals[11], *curY ) ) ); CF2_Fixed lastVal = cf2_stack_getReal( opStack, idx ); @@ -469,7 +469,7 @@ */ FT_LOCAL_DEF( void ) cf2_interpT2CharString( CF2_Font font, - CF2_Buffer buf, + const CF2_Buffer buf, CF2_OutlineCallbacks callbacks, const FT_Vector* translation, FT_Bool doingSeac, @@ -612,14 +612,14 @@ cf2_arrstack_setCount( &subrStack, CF2_MAX_SUBR + 1 ); charstring = (CF2_Buffer)cf2_arrstack_getBuffer( &subrStack ); - *charstring = *buf; /* structure copy */ - - charstringIndex = 0; /* entry is valid now */ /* catch errors so far */ if ( *error ) goto exit; + *charstring = *buf; /* structure copy */ + charstringIndex = 0; /* entry is valid now */ + /* main interpreter loop */ while ( 1 ) { @@ -663,6 +663,7 @@ /* Skip outline commands first time round. */ /* `endchar' will trigger initial hintmap build */ /* and rewind the charstring. */ + FT_TRACE4(( " <outline command skipped>\n" )); cf2_stack_clear( opStack ); continue; } @@ -775,7 +776,8 @@ case cf2_cmdHSTEMHM: case cf2_cmdHSTEM: - FT_TRACE4(( op1 == cf2_cmdHSTEMHM ? " hstemhm\n" : " hstem\n" )); + FT_TRACE4(( "%s\n", op1 == cf2_cmdHSTEMHM ? " hstemhm" + : " hstem" )); if ( !font->isT1 ) { @@ -805,7 +807,8 @@ case cf2_cmdVSTEMHM: case cf2_cmdVSTEM: - FT_TRACE4(( op1 == cf2_cmdVSTEMHM ? " vstemhm\n" : " vstem\n" )); + FT_TRACE4(( "%s\n", op1 == cf2_cmdVSTEMHM ? " vstemhm" + : " vstem" )); if ( !font->isT1 ) { @@ -888,7 +891,7 @@ FT_Bool isX = FT_BOOL( op1 == cf2_cmdHLINETO ); - FT_TRACE4(( isX ? " hlineto\n" : " vlineto\n" )); + FT_TRACE4(( "%s\n", isX ? " hlineto" : " vlineto" )); for ( idx = 0; idx < count; idx++ ) { @@ -916,8 +919,8 @@ CF2_UInt idx = 0; - FT_TRACE4(( op1 == cf2_cmdRCURVELINE ? " rcurveline\n" - : " rrcurveto\n" )); + FT_TRACE4(( "%s\n", op1 == cf2_cmdRCURVELINE ? " rcurveline" + : " rrcurveto" )); while ( idx + 6 <= count ) { @@ -957,10 +960,10 @@ FT_TRACE4(( " unknown op (%d)\n", op1 )); else { - FT_TRACE4(( " closepath" )); + FT_TRACE4(( " closepath\n" )); /* if there is no path, `closepath' is a no-op */ - ps_builder_close_contour( &decoder->builder ); + cf2_glyphpath_closeOpenPath( &glyphPath ); haveWidth = TRUE; } @@ -972,8 +975,8 @@ CF2_Int subrNum; - FT_TRACE4(( op1 == cf2_cmdCALLGSUBR ? " callgsubr" - : " callsubr" )); + FT_TRACE4(( "%s", op1 == cf2_cmdCALLGSUBR ? " callgsubr" + : " callsubr" )); if ( ( !font->isT1 && charstringIndex > CF2_MAX_SUBR ) || ( font->isT1 && charstringIndex > T1_MAX_SUBRS_CALLS ) ) @@ -1212,8 +1215,8 @@ FT_Bool isV = FT_BOOL( op2 == cf2_escVSTEM3 ); - FT_TRACE4(( isV ? " vstem3\n" - : " hstem3\n" )); + FT_TRACE4(( "%s\n", isV ? " vstem3" + : " hstem3" )); FT_ASSERT( cf2_stack_count( opStack ) == 6 ); @@ -1337,9 +1340,9 @@ if ( decoder->glyph_names == 0 ) #endif /* FT_CONFIG_OPTION_INCREMENTAL */ { - FT_ERROR(( - "cf2_interpT2CharString: (Type 1 seac)" - " glyph names table not available in this font\n" )); + FT_ERROR(( "cf2_interpT2CharString:\n" )); + FT_ERROR(( " (Type 1 seac) glyph names table" + " not available in this font\n" )); lastError = FT_THROW( Invalid_Glyph_Format ); goto exit; } @@ -1365,9 +1368,9 @@ if ( bchar_index < 0 || achar_index < 0 ) { - FT_ERROR(( - "cf2_interpT2CharString: (Type 1 seac)" - " invalid seac character code arguments\n" )); + FT_ERROR(( "cf2_interpT2CharString:\n" )); + FT_ERROR(( " (Type 1 seac) invalid" + " seac character code arguments\n" )); lastError = FT_THROW( Invalid_Glyph_Format ); goto exit; } @@ -1430,6 +1433,13 @@ lastError = error2; /* pass FreeType error through */ goto exit; } + + /* save the left bearing and width of the SEAC */ + /* glyph as they will be erased by the next load */ + + left_bearing = *decoder->builder.left_bearing; + advance = *decoder->builder.advance; + cf2_interpT2CharString( font, &component, callbacks, @@ -1440,11 +1450,14 @@ &dummyWidth ); cf2_freeT1SeacComponent( decoder, &component ); - /* save the left bearing and width of the base */ - /* character as they will be erased by the next load */ + /* If the SEAC glyph doesn't have a (H)SBW of its */ + /* own use the values from the base glyph. */ - left_bearing = *decoder->builder.left_bearing; - advance = *decoder->builder.advance; + if ( !haveWidth ) + { + left_bearing = *decoder->builder.left_bearing; + advance = *decoder->builder.advance; + } decoder->builder.left_bearing->x = 0; decoder->builder.left_bearing->y = 0; @@ -1470,8 +1483,8 @@ &dummyWidth ); cf2_freeT1SeacComponent( decoder, &component ); - /* restore the left side bearing and */ - /* advance width of the base character */ + /* restore the left side bearing and advance width */ + /* of the SEAC glyph or base character (saved above) */ *decoder->builder.left_bearing = left_bearing; *decoder->builder.advance = advance; @@ -1644,19 +1657,26 @@ subr_no = cf2_stack_popInt( opStack ); arg_cnt = cf2_stack_popInt( opStack ); - /*******************************************************/ - /* */ - /* remove all operands to callothersubr from the stack */ - /* */ - /* for handled othersubrs, where we know the number of */ - /* arguments, we increase the stack by the value of */ - /* known_othersubr_result_cnt */ - /* */ - /* for unhandled othersubrs the following pops adjust */ - /* the stack pointer as necessary */ + /******************************************************** + * + * remove all operands to callothersubr from the stack + * + * for handled othersubrs, where we know the number of + * arguments, we increase the stack by the value of + * known_othersubr_result_cnt + * + * for unhandled othersubrs the following pops adjust + * the stack pointer as necessary + */ count = cf2_stack_count( opStack ); - FT_ASSERT( (CF2_UInt)arg_cnt <= count ); + if ( (CF2_UInt)arg_cnt > count ) + { + FT_ERROR(( "cf2_interpT2CharString (Type 1 mode):" + " stack underflow\n" )); + lastError = FT_THROW( Invalid_Glyph_Format ); + goto exit; + } opIdx += count - (CF2_UInt)arg_cnt; @@ -1879,24 +1899,25 @@ /* cvi( <idx> ) of BuildCharArray with */ /* WeightVector */ { - FT_Int idx; - PS_Blend blend = decoder->blend; + FT_UInt idx; + PS_Blend blend = decoder->blend; + FT_UInt len_buildchar = decoder->len_buildchar; if ( arg_cnt != 1 || !blend ) goto Unexpected_OtherSubr; - idx = cf2_stack_popInt( opStack ); + idx = (FT_UInt)cf2_stack_popInt( opStack ); - if ( idx < 0 || - (FT_UInt)idx + blend->num_designs > - decoder->len_buildchar ) + if ( len_buildchar < blend->num_designs || + len_buildchar - blend->num_designs < idx ) goto Unexpected_OtherSubr; - ft_memcpy( &decoder->buildchar[idx], - blend->weight_vector, - blend->num_designs * - sizeof ( blend->weight_vector[0] ) ); + if ( decoder->buildchar && blend->weight_vector ) + ft_memcpy( &decoder->buildchar[idx], + blend->weight_vector, + blend->num_designs * + sizeof ( blend->weight_vector[0] ) ); } break; @@ -1990,17 +2011,16 @@ /* <val> <idx> 2 24 callothersubr */ /* ==> set BuildCharArray[cvi( <idx> )] = <val> */ { - CF2_Int idx; + CF2_UInt idx; PS_Blend blend = decoder->blend; if ( arg_cnt != 2 || !blend ) goto Unexpected_OtherSubr; - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); - if ( idx < 0 || - (FT_UInt)idx >= decoder->len_buildchar ) + if ( idx >= decoder->len_buildchar ) goto Unexpected_OtherSubr; decoder->buildchar[idx] = @@ -2013,17 +2033,16 @@ /* ==> push BuildCharArray[cvi( idx )] */ /* onto T1 stack */ { - CF2_Int idx; + CF2_UInt idx; PS_Blend blend = decoder->blend; if ( arg_cnt != 1 || !blend ) goto Unexpected_OtherSubr; - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); - if ( idx < 0 || - (FT_UInt)idx >= decoder->len_buildchar ) + if ( idx >= decoder->len_buildchar ) goto Unexpected_OtherSubr; cf2_stack_pushFixed( opStack, @@ -2165,29 +2184,29 @@ case cf2_escPUT: { CF2_F16Dot16 val; - CF2_Int idx; + CF2_UInt idx; FT_TRACE4(( " put\n" )); - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); val = cf2_stack_popFixed( opStack ); - if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) + if ( idx < CF2_STORAGE_SIZE ) storage[idx] = val; } continue; /* do not clear the stack */ case cf2_escGET: { - CF2_Int idx; + CF2_UInt idx; FT_TRACE4(( " get\n" )); - idx = cf2_stack_popInt( opStack ); + idx = (CF2_UInt)cf2_stack_popInt( opStack ); - if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) + if ( idx < CF2_STORAGE_SIZE ) cf2_stack_pushFixed( opStack, storage[idx] ); } continue; /* do not clear the stack */ @@ -2416,7 +2435,7 @@ PS_Builder* builder; - FT_TRACE4(( " hsbw" )); + FT_TRACE4(( " hsbw\n" )); builder = &decoder->builder; @@ -2562,7 +2581,7 @@ case cf2_cmdHINTMASK: /* the final \n in the tracing message gets added in */ /* `cf2_hintmask_read' (which also traces the mask bytes) */ - FT_TRACE4(( op1 == cf2_cmdCNTRMASK ? " cntrmask" : " hintmask" )); + FT_TRACE4(( "%s", op1 == cf2_cmdCNTRMASK ? " cntrmask" : " hintmask" )); /* never add hints after the mask is computed */ if ( cf2_stack_count( opStack ) > 1 && @@ -2828,7 +2847,7 @@ count = count1 & ~2U; idx += count1 - count; - FT_TRACE4(( alternate ? " hvcurveto\n" : " vhcurveto\n" )); + FT_TRACE4(( "%s\n", alternate ? " hvcurveto" : " vhcurveto" )); while ( idx < count ) { |