diff options
author | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-12-30 23:22:05 +0000 |
---|---|---|
committer | Akira Kakuto <kakuto@fuk.kindai.ac.jp> | 2016-12-30 23:22:05 +0000 |
commit | c1c7df45902c28d68a07508d11224cef86edcb0d (patch) | |
tree | f00af2d1129c70381279ba7db2c699ede0738f51 /Build/source/libs/freetype2/freetype-src/src/cff | |
parent | 770c1f2b994c43dfec555e1411995aa3700d406d (diff) |
freetype2 2.7.1
git-svn-id: svn://tug.org/texlive/trunk@42811 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/freetype2/freetype-src/src/cff')
22 files changed, 2273 insertions, 572 deletions
diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2arrst.c b/Build/source/libs/freetype2/freetype-src/src/cff/cf2arrst.c index 89f3e9f1d74..6796450fe10 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2arrst.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2arrst.c @@ -58,7 +58,7 @@ FT_Error* error, size_t sizeItem ) { - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); /* initialize the structure */ arrstack->memory = memory; @@ -78,7 +78,7 @@ FT_Memory memory = arrstack->memory; /* for FT_FREE */ - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); arrstack->allocated = 0; arrstack->count = 0; @@ -95,7 +95,7 @@ cf2_arrstack_setNumElements( CF2_ArrStack arrstack, size_t numElements ) { - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); { FT_Error error = FT_Err_Ok; /* for FT_REALLOC */ @@ -140,7 +140,7 @@ cf2_arrstack_setCount( CF2_ArrStack arrstack, size_t numElements ) { - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); if ( numElements > arrstack->allocated ) { @@ -157,7 +157,7 @@ FT_LOCAL_DEF( void ) cf2_arrstack_clear( CF2_ArrStack arrstack ) { - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); arrstack->count = 0; } @@ -167,7 +167,7 @@ FT_LOCAL_DEF( size_t ) cf2_arrstack_size( const CF2_ArrStack arrstack ) { - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); return arrstack->count; } @@ -176,7 +176,7 @@ FT_LOCAL_DEF( void* ) cf2_arrstack_getBuffer( const CF2_ArrStack arrstack ) { - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); return arrstack->ptr; } @@ -190,7 +190,7 @@ void* newPtr; - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); if ( idx >= arrstack->count ) { @@ -212,7 +212,7 @@ cf2_arrstack_push( CF2_ArrStack arrstack, const void* ptr ) { - FT_ASSERT( arrstack != NULL ); + FT_ASSERT( arrstack ); if ( arrstack->count == arrstack->allocated ) { @@ -225,7 +225,7 @@ } } - FT_ASSERT( ptr != NULL ); + FT_ASSERT( ptr ); { size_t offset = arrstack->count * arrstack->sizeItem; diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2error.c b/Build/source/libs/freetype2/freetype-src/src/cff/cf2error.c index b5595a3d1f3..e3dd69f50d1 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2error.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2error.c @@ -44,7 +44,7 @@ cf2_setError( FT_Error* error, FT_Error value ) { - if ( error && *error == 0 ) + if ( error && !*error ) *error = value; } diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2fixed.h b/Build/source/libs/freetype2/freetype-src/src/cff/cf2fixed.h index 74af37708be..2e4b5032fa7 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2fixed.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2fixed.h @@ -51,8 +51,8 @@ FT_BEGIN_HEADER #define CF2_FIXED_MAX ( (CF2_Fixed)0x7FFFFFFFL ) #define CF2_FIXED_MIN ( (CF2_Fixed)0x80000000L ) -#define CF2_FIXED_ONE 0x10000L -#define CF2_FIXED_EPSILON 0x0001 +#define CF2_FIXED_ONE ( (CF2_Fixed)0x10000L ) +#define CF2_FIXED_EPSILON ( (CF2_Fixed)0x0001 ) /* in C 89, left and right shift of negative numbers is */ /* implementation specific behaviour in the general case */ diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.c b/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.c index 83fd348f2db..a86e3619b46 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.c @@ -234,7 +234,8 @@ } - /* set up values for the current FontDict and matrix */ + /* set up values for the current FontDict and matrix; */ + /* called for each glyph to be rendered */ /* caller's transform is adjusted for subpixel positioning */ static void @@ -246,6 +247,9 @@ FT_Bool needExtraSetup = FALSE; + CFF_VStoreRec* vstore; + FT_Bool hasVariations = FALSE; + /* character space units */ CF2_Fixed boldenX = font->syntheticEmboldeningAmountX; CF2_Fixed boldenY = font->syntheticEmboldeningAmountY; @@ -253,6 +257,9 @@ CFF_SubFont subFont; CF2_Fixed ppem; + CF2_UInt lenNormalizedV = 0; + FT_Fixed* normalizedV = NULL; + /* clear previous error */ font->error = FT_Err_Ok; @@ -266,6 +273,48 @@ needExtraSetup = TRUE; } + /* check for variation vectors */ + vstore = cf2_getVStore( decoder ); + hasVariations = ( vstore->dataCount != 0 ); + + if ( hasVariations ) + { +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /* check whether Private DICT in this subfont needs to be reparsed */ + font->error = cf2_getNormalizedVector( decoder, + &lenNormalizedV, + &normalizedV ); + if ( font->error ) + return; + + if ( cff_blend_check_vector( &subFont->blend, + subFont->private_dict.vsindex, + lenNormalizedV, + normalizedV ) ) + { + /* blend has changed, reparse */ + cff_load_private_dict( decoder->cff, + subFont, + lenNormalizedV, + normalizedV ); + needExtraSetup = TRUE; + } +#endif + + /* copy from subfont */ + font->blend.font = subFont->blend.font; + + /* clear state of charstring blend */ + font->blend.usedBV = FALSE; + + /* initialize value for charstring */ + font->vsindex = subFont->private_dict.vsindex; + + /* store vector inputs for blends in charstring */ + font->lenNDV = lenNormalizedV; + font->NDV = normalizedV; + } + /* if ppem has changed, we need to recompute some cached data */ /* note: because of CID font matrix concatenation, ppem and transform */ /* do not necessarily track. */ @@ -423,7 +472,8 @@ /* compute blue zones for this instance */ cf2_blues_init( &font->blues, font ); - } + + } /* needExtraSetup */ } diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.h b/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.h index bd05e69e7b1..17ecd17bbb6 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2font.h @@ -42,6 +42,7 @@ #include "cf2ft.h" #include "cf2blues.h" +#include "cffload.h" FT_BEGIN_HEADER @@ -63,6 +64,7 @@ FT_BEGIN_HEADER FT_Memory memory; FT_Error error; /* shared error for this instance */ + FT_Bool isCFF2; CF2_RenderingFlags renderingFlags; /* variables that depend on Transform: */ @@ -74,6 +76,12 @@ FT_BEGIN_HEADER CF2_Matrix outerTransform; /* post hinting; includes rotations */ CF2_Fixed ppem; /* transform-dependent */ + /* variation data */ + CFF_BlendRec blend; /* cached charstring blend vector */ + CF2_UInt vsindex; /* current vsindex */ + CF2_UInt lenNDV; /* current length NDV or zero */ + FT_Fixed* NDV; /* ptr to current NDV or NULL */ + CF2_Int unitsPerEm; CF2_Fixed syntheticEmboldeningAmountX; /* character space units */ diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.c b/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.c index 55f3206ac25..c0d067e94ee 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.c @@ -104,7 +104,8 @@ FT_Memory memory = font->memory; - (void)memory; + FT_FREE( font->blend.lastNDV ); + FT_FREE( font->blend.BV ); } } @@ -239,7 +240,7 @@ FT_Memory memory, FT_Error* error ) { - FT_MEM_ZERO( outline, sizeof ( CF2_OutlineRec ) ); + FT_ZERO( outline ); outline->root.memory = memory; outline->root.error = error; @@ -311,7 +312,7 @@ font = (CF2_Font)decoder->cff->cf2_instance.data; /* on first glyph, allocate instance structure */ - if ( decoder->cff->cf2_instance.data == NULL ) + if ( !decoder->cff->cf2_instance.data ) { decoder->cff->cf2_instance.finalizer = (FT_Generic_Finalizer)cf2_free_instance; @@ -366,6 +367,9 @@ &hinted, &scaled ); + /* copy isCFF2 boolean from TT_Face to CF2_Font */ + font->isCFF2 = builder->face->isCFF2; + font->renderingFlags = 0; if ( hinted ) font->renderingFlags |= CF2_FlagsHinted; @@ -413,6 +417,44 @@ } + /* get pointer to VStore structure */ + FT_LOCAL_DEF( CFF_VStore ) + cf2_getVStore( CFF_Decoder* decoder ) + { + FT_ASSERT( decoder && decoder->cff ); + + return &decoder->cff->vstore; + } + + + /* get maxstack value from CFF2 Top DICT */ + FT_LOCAL_DEF( FT_UInt ) + cf2_getMaxstack( CFF_Decoder* decoder ) + { + FT_ASSERT( decoder && decoder->cff ); + + return decoder->cff->top_font.font_dict.maxstack; + } + + +#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( CFF_Decoder* decoder, + CF2_UInt *len, + FT_Fixed* *vec ) + { + FT_ASSERT( decoder && decoder->builder.face ); + FT_ASSERT( vec && len ); + + return cff_get_var_blend( decoder->builder.face, len, vec, NULL ); + } +#endif + + /* get `y_ppem' from `CFF_Size' */ FT_LOCAL_DEF( CF2_Fixed ) cf2_getPpemY( CFF_Decoder* decoder ) diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.h b/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.h index 8e55e841a0c..b054a6e950c 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2ft.h @@ -64,6 +64,18 @@ FT_BEGIN_HEADER FT_LOCAL( CFF_SubFont ) cf2_getSubfont( CFF_Decoder* decoder ); + FT_LOCAL( CFF_VStore ) + cf2_getVStore( CFF_Decoder* decoder ); + + FT_LOCAL( FT_UInt ) + cf2_getMaxstack( CFF_Decoder* decoder ); + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_LOCAL( FT_Error ) + cf2_getNormalizedVector( CFF_Decoder* decoder, + CF2_UInt *len, + FT_Fixed* *vec ); +#endif FT_LOCAL( CF2_Fixed ) cf2_getPpemY( CFF_Decoder* decoder ); diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2hints.c b/Build/source/libs/freetype2/freetype-src/src/cff/cf2hints.c index bbbe8e3c32a..c8f7dfeba6d 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2hints.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2hints.c @@ -401,10 +401,10 @@ /* calculate all four possibilities; moves down are negative */ CF2_Fixed downMoveDown = 0 - fracDown; CF2_Fixed upMoveDown = 0 - fracUp; - CF2_Fixed downMoveUp = fracDown == 0 + CF2_Fixed downMoveUp = ( fracDown == 0 ) ? 0 : cf2_intToFixed( 1 ) - fracDown; - CF2_Fixed upMoveUp = fracUp == 0 + CF2_Fixed upMoveUp = ( fracUp == 0 ) ? 0 : cf2_intToFixed( 1 ) - fracUp; diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2intrp.c b/Build/source/libs/freetype2/freetype-src/src/cff/cf2intrp.c index 10e7b4b6459..6bf298a4d60 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2intrp.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2intrp.c @@ -47,6 +47,8 @@ #include "cf2error.h" +#include "cffload.h" + /*************************************************************************/ /* */ @@ -215,8 +217,8 @@ cf2_cmdESC, /* 12 */ cf2_cmdRESERVED_13, /* 13 */ cf2_cmdENDCHAR, /* 14 */ - cf2_cmdRESERVED_15, /* 15 */ - cf2_cmdRESERVED_16, /* 16 */ + cf2_cmdVSINDEX, /* 15 */ + cf2_cmdBLEND, /* 16 */ cf2_cmdRESERVED_17, /* 17 */ cf2_cmdHSTEMHM, /* 18 */ cf2_cmdHINTMASK, /* 19 */ @@ -273,7 +275,8 @@ cf2_escHFLEX, /* 34 */ cf2_escFLEX, /* 35 */ cf2_escHFLEX1, /* 36 */ - cf2_escFLEX1 /* 37 */ + cf2_escFLEX1, /* 37 */ + cf2_escRESERVED_38 /* 38 & all higher */ }; @@ -344,7 +347,7 @@ vals[0] = *curX; vals[1] = *curY; index = 0; - isHFlex = readFromStack[9] == FALSE; + isHFlex = FT_BOOL( readFromStack[9] == FALSE ); top = isHFlex ? 9 : 10; for ( i = 0; i < top; i++ ) @@ -403,6 +406,43 @@ } + /* Blend numOperands on the stack, */ + /* store results into the first numBlends values, */ + /* then pop remaining arguments. */ + static void + cf2_doBlend( const CFF_Blend blend, + CF2_Stack opStack, + CF2_UInt numBlends ) + { + CF2_UInt delta; + CF2_UInt base; + CF2_UInt i, j; + CF2_UInt numOperands = (CF2_UInt)( numBlends * blend->lenBV ); + + + base = cf2_stack_count( opStack ) - numOperands; + delta = base + numBlends; + + for ( i = 0; i < numBlends; i++ ) + { + const CF2_Fixed* weight = &blend->BV[1]; + + /* start with first term */ + CF2_Fixed sum = cf2_stack_getReal( opStack, i + base ); + + + for ( j = 1; j < blend->lenBV; j++ ) + sum += FT_MulFix( *weight++, cf2_stack_getReal( opStack, delta++ ) ); + + /* store blended result */ + cf2_stack_setReal( opStack, i + base, sum ); + } + + /* leave only `numBlends' results on stack */ + cf2_stack_pop( opStack, numOperands - numBlends ); + } + + /* * `error' is a shared error code used by many objects in this * routine. Before the code continues from an error, it must check and @@ -445,6 +485,7 @@ CF2_Fixed hintOriginY = curY; CF2_Stack opStack = NULL; + FT_UInt stackSize; FT_Byte op1; /* first opcode byte */ CF2_F16Dot16 storage[CF2_STORAGE_SIZE]; /* for `put' and `get' */ @@ -520,19 +561,24 @@ * If one of the above operators occurs without explicitly specifying * a width, we assume the default width. * + * CFF2 charstrings always return the default width (0). + * */ - haveWidth = FALSE; + haveWidth = font->isCFF2 ? TRUE : FALSE; *width = cf2_getDefaultWidthX( decoder ); /* - * Note: at this point, all pointers to resources must be NULL - * and all local objects must be initialized. - * There must be no branches to exit: above this point. + * Note: At this point, all pointers to resources must be NULL + * and all local objects must be initialized. + * There must be no branches to `exit:' above this point. * */ /* allocate an operand stack */ - opStack = cf2_stack_init( memory, error ); + stackSize = font->isCFF2 ? cf2_getMaxstack( decoder ) + : CF2_OPERAND_STACK_SIZE; + opStack = cf2_stack_init( memory, error, stackSize ); + if ( !opStack ) { lastError = FT_THROW( Out_Of_Memory ); @@ -561,14 +607,23 @@ { /* If we've reached the end of the charstring, simulate a */ /* cf2_cmdRETURN or cf2_cmdENDCHAR. */ + /* We do this for both CFF and CFF2. */ if ( charstringIndex ) op1 = cf2_cmdRETURN; /* end of buffer for subroutine */ else op1 = cf2_cmdENDCHAR; /* end of buffer for top level charstring */ } else + { op1 = (FT_Byte)cf2_buf_readByte( charstring ); + /* Explicit RETURN and ENDCHAR in CFF2 should be ignored. */ + /* Note: Trace message will report 0 instead of 11 or 14. */ + if ( ( op1 == cf2_cmdRETURN || op1 == cf2_cmdENDCHAR ) && + font->isCFF2 ) + op1 = cf2_cmdRESERVED_0; + } + /* check for errors once per loop */ if ( *error ) goto exit; @@ -586,13 +641,78 @@ case cf2_cmdRESERVED_2: case cf2_cmdRESERVED_9: case cf2_cmdRESERVED_13: - case cf2_cmdRESERVED_15: - case cf2_cmdRESERVED_16: case cf2_cmdRESERVED_17: /* we may get here if we have a prior error */ FT_TRACE4(( " unknown op (%d)\n", op1 )); break; + case cf2_cmdVSINDEX: + FT_TRACE4(( " vsindex\n" )); + + if ( !font->isCFF2 ) + break; /* clear stack & ignore */ + + if ( font->blend.usedBV ) + { + /* vsindex not allowed after blend */ + lastError = FT_THROW( Invalid_Glyph_Format ); + goto exit; + } + + { + FT_Int temp = cf2_stack_popInt( opStack ); + + + if ( temp >= 0 ) + font->vsindex = (FT_UInt)temp; + } + break; + + case cf2_cmdBLEND: + { + FT_UInt numBlends; + + + FT_TRACE4(( " blend\n" )); + + if ( !font->isCFF2 ) + break; /* clear stack & ignore */ + + /* do we have a `blend' op in a non-variant font? */ + if ( !font->blend.font ) + { + lastError = FT_THROW( Invalid_Glyph_Format ); + goto exit; + } + + /* check cached blend vector */ + if ( cff_blend_check_vector( &font->blend, + font->vsindex, + font->lenNDV, + font->NDV ) ) + { + lastError = cff_blend_build_vector( &font->blend, + font->vsindex, + font->lenNDV, + font->NDV ); + if ( lastError ) + goto exit; + } + + /* do the blend */ + numBlends = (FT_UInt)cf2_stack_popInt( opStack ); + if ( numBlends > stackSize ) + { + lastError = FT_THROW( Invalid_Glyph_Format ); + goto exit; + } + + cf2_doBlend( &font->blend, opStack, numBlends ); + + font->blend.usedBV = TRUE; + } + continue; /* do not clear the stack */ + case cf2_cmdHSTEMHM: case cf2_cmdHSTEM: FT_TRACE4(( op1 == cf2_cmdHSTEMHM ? " hstemhm\n" : " hstem\n" )); @@ -685,7 +805,7 @@ CF2_UInt index; CF2_UInt count = cf2_stack_count( opStack ); - FT_Bool isX = op1 == cf2_cmdHLINETO; + FT_Bool isX = FT_BOOL( op1 == cf2_cmdHLINETO ); FT_TRACE4(( isX ? " hlineto\n" : " vlineto\n" )); @@ -830,440 +950,456 @@ FT_Byte op2 = (FT_Byte)cf2_buf_readByte( charstring ); + /* first switch for 2-byte operators handles CFF2 */ + /* and opcodes that are reserved for both CFF and CFF2 */ switch ( op2 ) { - case cf2_escDOTSECTION: - /* something about `flip type of locking' -- ignore it */ - FT_TRACE4(( " dotsection\n" )); + case cf2_escHFLEX: + { + static const FT_Bool readFromStack[12] = + { + TRUE /* dx1 */, FALSE /* dy1 */, + TRUE /* dx2 */, TRUE /* dy2 */, + TRUE /* dx3 */, FALSE /* dy3 */, + TRUE /* dx4 */, FALSE /* dy4 */, + TRUE /* dx5 */, FALSE /* dy5 */, + TRUE /* dx6 */, FALSE /* dy6 */ + }; - break; - case cf2_escAND: - { - CF2_F16Dot16 arg1; - CF2_F16Dot16 arg2; + FT_TRACE4(( " hflex\n" )); + + cf2_doFlex( opStack, + &curX, + &curY, + &glyphPath, + readFromStack, + FALSE /* doConditionalLastRead */ ); + } + continue; + case cf2_escFLEX: + { + static const FT_Bool readFromStack[12] = + { + TRUE /* dx1 */, TRUE /* dy1 */, + TRUE /* dx2 */, TRUE /* dy2 */, + TRUE /* dx3 */, TRUE /* dy3 */, + TRUE /* dx4 */, TRUE /* dy4 */, + TRUE /* dx5 */, TRUE /* dy5 */, + TRUE /* dx6 */, TRUE /* dy6 */ + }; - FT_TRACE4(( " and\n" )); - arg2 = cf2_stack_popFixed( opStack ); - arg1 = cf2_stack_popFixed( opStack ); + FT_TRACE4(( " flex\n" )); - cf2_stack_pushInt( opStack, arg1 && arg2 ); + cf2_doFlex( opStack, + &curX, + &curY, + &glyphPath, + readFromStack, + FALSE /* doConditionalLastRead */ ); } - continue; /* do not clear the stack */ + break; /* TODO: why is this not a continue? */ - case cf2_escOR: + case cf2_escHFLEX1: { - CF2_F16Dot16 arg1; - CF2_F16Dot16 arg2; - + static const FT_Bool readFromStack[12] = + { + TRUE /* dx1 */, TRUE /* dy1 */, + TRUE /* dx2 */, TRUE /* dy2 */, + TRUE /* dx3 */, FALSE /* dy3 */, + TRUE /* dx4 */, FALSE /* dy4 */, + TRUE /* dx5 */, TRUE /* dy5 */, + TRUE /* dx6 */, FALSE /* dy6 */ + }; - FT_TRACE4(( " or\n" )); - arg2 = cf2_stack_popFixed( opStack ); - arg1 = cf2_stack_popFixed( opStack ); + FT_TRACE4(( " hflex1\n" )); - cf2_stack_pushInt( opStack, arg1 || arg2 ); + cf2_doFlex( opStack, + &curX, + &curY, + &glyphPath, + readFromStack, + FALSE /* doConditionalLastRead */ ); } - continue; /* do not clear the stack */ + continue; - case cf2_escNOT: + case cf2_escFLEX1: { - CF2_F16Dot16 arg; - + static const FT_Bool readFromStack[12] = + { + TRUE /* dx1 */, TRUE /* dy1 */, + TRUE /* dx2 */, TRUE /* dy2 */, + TRUE /* dx3 */, TRUE /* dy3 */, + TRUE /* dx4 */, TRUE /* dy4 */, + TRUE /* dx5 */, TRUE /* dy5 */, + FALSE /* dx6 */, FALSE /* dy6 */ + }; - FT_TRACE4(( " not\n" )); - arg = cf2_stack_popFixed( opStack ); + FT_TRACE4(( " flex1\n" )); - cf2_stack_pushInt( opStack, !arg ); + cf2_doFlex( opStack, + &curX, + &curY, + &glyphPath, + readFromStack, + TRUE /* doConditionalLastRead */ ); } - continue; /* do not clear the stack */ + continue; + + /* these opcodes are reserved in both CFF & CFF2 */ + case cf2_escRESERVED_1: + case cf2_escRESERVED_2: + case cf2_escRESERVED_6: + case cf2_escRESERVED_7: + case cf2_escRESERVED_8: + case cf2_escRESERVED_13: + case cf2_escRESERVED_16: + case cf2_escRESERVED_17: + case cf2_escRESERVED_19: + case cf2_escRESERVED_25: + case cf2_escRESERVED_31: + case cf2_escRESERVED_32: + case cf2_escRESERVED_33: + FT_TRACE4(( " unknown op (12, %d)\n", op2 )); + break; - case cf2_escABS: + default: { - CF2_F16Dot16 arg; + if ( font->isCFF2 || op2 >= cf2_escRESERVED_38 ) + FT_TRACE4(( " unknown op (12, %d)\n", op2 )); + else + { + /* second switch for 2-byte operators handles just CFF */ + switch ( op2 ) + { + case cf2_escDOTSECTION: + /* something about `flip type of locking' -- ignore it */ + FT_TRACE4(( " dotsection\n" )); - FT_TRACE4(( " abs\n" )); + break; - arg = cf2_stack_popFixed( opStack ); + case cf2_escAND: + { + CF2_F16Dot16 arg1; + CF2_F16Dot16 arg2; - cf2_stack_pushFixed( opStack, FT_ABS( arg ) ); - } - continue; /* do not clear the stack */ - case cf2_escADD: - { - CF2_F16Dot16 summand1; - CF2_F16Dot16 summand2; + FT_TRACE4(( " and\n" )); + arg2 = cf2_stack_popFixed( opStack ); + arg1 = cf2_stack_popFixed( opStack ); - FT_TRACE4(( " add\n" )); + cf2_stack_pushInt( opStack, arg1 && arg2 ); + } + continue; /* do not clear the stack */ - summand2 = cf2_stack_popFixed( opStack ); - summand1 = cf2_stack_popFixed( opStack ); + case cf2_escOR: + { + CF2_F16Dot16 arg1; + CF2_F16Dot16 arg2; - cf2_stack_pushFixed( opStack, summand1 + summand2 ); - } - continue; /* do not clear the stack */ - case cf2_escSUB: - { - CF2_F16Dot16 minuend; - CF2_F16Dot16 subtrahend; + FT_TRACE4(( " or\n" )); + arg2 = cf2_stack_popFixed( opStack ); + arg1 = cf2_stack_popFixed( opStack ); - FT_TRACE4(( " sub\n" )); + cf2_stack_pushInt( opStack, arg1 || arg2 ); + } + continue; /* do not clear the stack */ - subtrahend = cf2_stack_popFixed( opStack ); - minuend = cf2_stack_popFixed( opStack ); + case cf2_escNOT: + { + CF2_F16Dot16 arg; - cf2_stack_pushFixed( opStack, minuend - subtrahend ); - } - continue; /* do not clear the stack */ - case cf2_escDIV: - { - CF2_F16Dot16 dividend; - CF2_F16Dot16 divisor; + FT_TRACE4(( " not\n" )); + arg = cf2_stack_popFixed( opStack ); - FT_TRACE4(( " div\n" )); + cf2_stack_pushInt( opStack, !arg ); + } + continue; /* do not clear the stack */ - divisor = cf2_stack_popFixed( opStack ); - dividend = cf2_stack_popFixed( opStack ); + case cf2_escABS: + { + CF2_F16Dot16 arg; - cf2_stack_pushFixed( opStack, FT_DivFix( dividend, divisor ) ); - } - continue; /* do not clear the stack */ - case cf2_escNEG: - { - CF2_F16Dot16 arg; + FT_TRACE4(( " abs\n" )); + arg = cf2_stack_popFixed( opStack ); - FT_TRACE4(( " neg\n" )); + cf2_stack_pushFixed( opStack, FT_ABS( arg ) ); + } + continue; /* do not clear the stack */ - arg = cf2_stack_popFixed( opStack ); + case cf2_escADD: + { + CF2_F16Dot16 summand1; + CF2_F16Dot16 summand2; - cf2_stack_pushFixed( opStack, -arg ); - } - continue; /* do not clear the stack */ - case cf2_escEQ: - { - CF2_F16Dot16 arg1; - CF2_F16Dot16 arg2; + FT_TRACE4(( " add\n" )); + summand2 = cf2_stack_popFixed( opStack ); + summand1 = cf2_stack_popFixed( opStack ); - FT_TRACE4(( " eq\n" )); + cf2_stack_pushFixed( opStack, summand1 + summand2 ); + } + continue; /* do not clear the stack */ - arg2 = cf2_stack_popFixed( opStack ); - arg1 = cf2_stack_popFixed( opStack ); + case cf2_escSUB: + { + CF2_F16Dot16 minuend; + CF2_F16Dot16 subtrahend; - cf2_stack_pushInt( opStack, arg1 == arg2 ); - } - continue; /* do not clear the stack */ - case cf2_escDROP: - FT_TRACE4(( " drop\n" )); + FT_TRACE4(( " sub\n" )); - (void)cf2_stack_popFixed( opStack ); - continue; /* do not clear the stack */ + subtrahend = cf2_stack_popFixed( opStack ); + minuend = cf2_stack_popFixed( opStack ); - case cf2_escPUT: - { - CF2_F16Dot16 val; - CF2_Int idx; + cf2_stack_pushFixed( opStack, minuend - subtrahend ); + } + continue; /* do not clear the stack */ + case cf2_escDIV: + { + CF2_F16Dot16 dividend; + CF2_F16Dot16 divisor; - FT_TRACE4(( " put\n" )); - idx = cf2_stack_popInt( opStack ); - val = cf2_stack_popFixed( opStack ); + FT_TRACE4(( " div\n" )); - if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) - storage[idx] = val; - } - continue; /* do not clear the stack */ + divisor = cf2_stack_popFixed( opStack ); + dividend = cf2_stack_popFixed( opStack ); - case cf2_escGET: - { - CF2_Int idx; + cf2_stack_pushFixed( opStack, FT_DivFix( dividend, divisor ) ); + } + continue; /* do not clear the stack */ + case cf2_escNEG: + { + CF2_F16Dot16 arg; - FT_TRACE4(( " get\n" )); - idx = cf2_stack_popInt( opStack ); + FT_TRACE4(( " neg\n" )); - if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) - cf2_stack_pushFixed( opStack, storage[idx] ); - } - continue; /* do not clear the stack */ + arg = cf2_stack_popFixed( opStack ); - case cf2_escIFELSE: - { - CF2_F16Dot16 arg1; - CF2_F16Dot16 arg2; - CF2_F16Dot16 cond1; - CF2_F16Dot16 cond2; + cf2_stack_pushFixed( opStack, -arg ); + } + continue; /* do not clear the stack */ + case cf2_escEQ: + { + CF2_F16Dot16 arg1; + CF2_F16Dot16 arg2; - FT_TRACE4(( " ifelse\n" )); - cond2 = cf2_stack_popFixed( opStack ); - cond1 = cf2_stack_popFixed( opStack ); - arg2 = cf2_stack_popFixed( opStack ); - arg1 = cf2_stack_popFixed( opStack ); + FT_TRACE4(( " eq\n" )); - cf2_stack_pushFixed( opStack, cond1 <= cond2 ? arg1 : arg2 ); - } - continue; /* do not clear the stack */ + arg2 = cf2_stack_popFixed( opStack ); + arg1 = cf2_stack_popFixed( opStack ); - case cf2_escRANDOM: /* in spec */ - FT_TRACE4(( " random\n" )); + cf2_stack_pushInt( opStack, arg1 == arg2 ); + } + continue; /* do not clear the stack */ - CF2_FIXME; - break; + case cf2_escDROP: + FT_TRACE4(( " drop\n" )); - case cf2_escMUL: - { - CF2_F16Dot16 factor1; - CF2_F16Dot16 factor2; + (void)cf2_stack_popFixed( opStack ); + continue; /* do not clear the stack */ + case cf2_escPUT: + { + CF2_F16Dot16 val; + CF2_Int idx; - FT_TRACE4(( " mul\n" )); - factor2 = cf2_stack_popFixed( opStack ); - factor1 = cf2_stack_popFixed( opStack ); + FT_TRACE4(( " put\n" )); - cf2_stack_pushFixed( opStack, FT_MulFix( factor1, factor2 ) ); - } - continue; /* do not clear the stack */ + idx = cf2_stack_popInt( opStack ); + val = cf2_stack_popFixed( opStack ); - case cf2_escSQRT: - { - CF2_F16Dot16 arg; + if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) + storage[idx] = val; + } + continue; /* do not clear the stack */ + case cf2_escGET: + { + CF2_Int idx; - FT_TRACE4(( " sqrt\n" )); - arg = cf2_stack_popFixed( opStack ); - if ( arg > 0 ) - { - FT_Fixed root = arg; - FT_Fixed new_root; + FT_TRACE4(( " get\n" )); + idx = cf2_stack_popInt( opStack ); - /* Babylonian method */ - for (;;) - { - new_root = ( root + FT_DivFix( arg, root ) + 1 ) >> 1; - if ( new_root == root ) - break; - root = new_root; - } - arg = new_root; - } - else - arg = 0; + if ( idx >= 0 && idx < CF2_STORAGE_SIZE ) + cf2_stack_pushFixed( opStack, storage[idx] ); + } + continue; /* do not clear the stack */ - cf2_stack_pushFixed( opStack, arg ); - } - continue; /* do not clear the stack */ + case cf2_escIFELSE: + { + CF2_F16Dot16 arg1; + CF2_F16Dot16 arg2; + CF2_F16Dot16 cond1; + CF2_F16Dot16 cond2; - case cf2_escDUP: - { - CF2_F16Dot16 arg; + FT_TRACE4(( " ifelse\n" )); - FT_TRACE4(( " dup\n" )); + cond2 = cf2_stack_popFixed( opStack ); + cond1 = cf2_stack_popFixed( opStack ); + arg2 = cf2_stack_popFixed( opStack ); + arg1 = cf2_stack_popFixed( opStack ); - arg = cf2_stack_popFixed( opStack ); + cf2_stack_pushFixed( opStack, cond1 <= cond2 ? arg1 : arg2 ); + } + continue; /* do not clear the stack */ - cf2_stack_pushFixed( opStack, arg ); - cf2_stack_pushFixed( opStack, arg ); - } - continue; /* do not clear the stack */ + case cf2_escRANDOM: /* in spec */ + FT_TRACE4(( " random\n" )); - case cf2_escEXCH: - { - CF2_F16Dot16 arg1; - CF2_F16Dot16 arg2; + CF2_FIXME; + break; + case cf2_escMUL: + { + CF2_F16Dot16 factor1; + CF2_F16Dot16 factor2; - FT_TRACE4(( " exch\n" )); - arg2 = cf2_stack_popFixed( opStack ); - arg1 = cf2_stack_popFixed( opStack ); + FT_TRACE4(( " mul\n" )); - cf2_stack_pushFixed( opStack, arg2 ); - cf2_stack_pushFixed( opStack, arg1 ); - } - continue; /* do not clear the stack */ + factor2 = cf2_stack_popFixed( opStack ); + factor1 = cf2_stack_popFixed( opStack ); - case cf2_escINDEX: - { - CF2_Int idx; - CF2_UInt size; + cf2_stack_pushFixed( opStack, FT_MulFix( factor1, factor2 ) ); + } + continue; /* do not clear the stack */ + case cf2_escSQRT: + { + CF2_F16Dot16 arg; - FT_TRACE4(( " index\n" )); - idx = cf2_stack_popInt( opStack ); - size = cf2_stack_count( opStack ); + FT_TRACE4(( " sqrt\n" )); - if ( size > 0 ) - { - /* for `cf2_stack_getReal', index 0 is bottom of stack */ - CF2_UInt gr_idx; + arg = cf2_stack_popFixed( opStack ); + if ( arg > 0 ) + { + FT_Fixed root = arg; + FT_Fixed new_root; - if ( idx < 0 ) - gr_idx = size - 1; - else if ( (CF2_UInt)idx >= size ) - gr_idx = 0; - else - gr_idx = size - 1 - (CF2_UInt)idx; + /* Babylonian method */ + for (;;) + { + new_root = ( root + FT_DivFix( arg, root ) + 1 ) >> 1; + if ( new_root == root ) + break; + root = new_root; + } + arg = new_root; + } + else + arg = 0; - cf2_stack_pushFixed( opStack, - cf2_stack_getReal( opStack, gr_idx ) ); - } - } - continue; /* do not clear the stack */ + cf2_stack_pushFixed( opStack, arg ); + } + continue; /* do not clear the stack */ - case cf2_escROLL: - { - CF2_Int idx; - CF2_Int count; + case cf2_escDUP: + { + CF2_F16Dot16 arg; - FT_TRACE4(( " roll\n" )); + FT_TRACE4(( " dup\n" )); - idx = cf2_stack_popInt( opStack ); - count = cf2_stack_popInt( opStack ); + arg = cf2_stack_popFixed( opStack ); - cf2_stack_roll( opStack, count, idx ); - } - continue; /* do not clear the stack */ + cf2_stack_pushFixed( opStack, arg ); + cf2_stack_pushFixed( opStack, arg ); + } + continue; /* do not clear the stack */ - case cf2_escHFLEX: - { - static const FT_Bool readFromStack[12] = - { - TRUE /* dx1 */, FALSE /* dy1 */, - TRUE /* dx2 */, TRUE /* dy2 */, - TRUE /* dx3 */, FALSE /* dy3 */, - TRUE /* dx4 */, FALSE /* dy4 */, - TRUE /* dx5 */, FALSE /* dy5 */, - TRUE /* dx6 */, FALSE /* dy6 */ - }; + case cf2_escEXCH: + { + CF2_F16Dot16 arg1; + CF2_F16Dot16 arg2; - FT_TRACE4(( " hflex\n" )); + FT_TRACE4(( " exch\n" )); - cf2_doFlex( opStack, - &curX, - &curY, - &glyphPath, - readFromStack, - FALSE /* doConditionalLastRead */ ); - } - continue; + arg2 = cf2_stack_popFixed( opStack ); + arg1 = cf2_stack_popFixed( opStack ); - case cf2_escFLEX: - { - static const FT_Bool readFromStack[12] = - { - TRUE /* dx1 */, TRUE /* dy1 */, - TRUE /* dx2 */, TRUE /* dy2 */, - TRUE /* dx3 */, TRUE /* dy3 */, - TRUE /* dx4 */, TRUE /* dy4 */, - TRUE /* dx5 */, TRUE /* dy5 */, - TRUE /* dx6 */, TRUE /* dy6 */ - }; + cf2_stack_pushFixed( opStack, arg2 ); + cf2_stack_pushFixed( opStack, arg1 ); + } + continue; /* do not clear the stack */ + case cf2_escINDEX: + { + CF2_Int idx; + CF2_UInt size; - FT_TRACE4(( " flex\n" )); - cf2_doFlex( opStack, - &curX, - &curY, - &glyphPath, - readFromStack, - FALSE /* doConditionalLastRead */ ); - } - break; /* TODO: why is this not a continue? */ + FT_TRACE4(( " index\n" )); - case cf2_escHFLEX1: - { - static const FT_Bool readFromStack[12] = - { - TRUE /* dx1 */, TRUE /* dy1 */, - TRUE /* dx2 */, TRUE /* dy2 */, - TRUE /* dx3 */, FALSE /* dy3 */, - TRUE /* dx4 */, FALSE /* dy4 */, - TRUE /* dx5 */, TRUE /* dy5 */, - TRUE /* dx6 */, FALSE /* dy6 */ - }; + idx = cf2_stack_popInt( opStack ); + size = cf2_stack_count( opStack ); + if ( size > 0 ) + { + /* for `cf2_stack_getReal', index 0 is bottom of stack */ + CF2_UInt gr_idx; - FT_TRACE4(( " hflex1\n" )); - cf2_doFlex( opStack, - &curX, - &curY, - &glyphPath, - readFromStack, - FALSE /* doConditionalLastRead */ ); - } - continue; + if ( idx < 0 ) + gr_idx = size - 1; + else if ( (CF2_UInt)idx >= size ) + gr_idx = 0; + else + gr_idx = size - 1 - (CF2_UInt)idx; - case cf2_escFLEX1: - { - static const FT_Bool readFromStack[12] = - { - TRUE /* dx1 */, TRUE /* dy1 */, - TRUE /* dx2 */, TRUE /* dy2 */, - TRUE /* dx3 */, TRUE /* dy3 */, - TRUE /* dx4 */, TRUE /* dy4 */, - TRUE /* dx5 */, TRUE /* dy5 */, - FALSE /* dx6 */, FALSE /* dy6 */ - }; + cf2_stack_pushFixed( opStack, + cf2_stack_getReal( opStack, gr_idx ) ); + } + } + continue; /* do not clear the stack */ + case cf2_escROLL: + { + CF2_Int idx; + CF2_Int count; - FT_TRACE4(( " flex1\n" )); - cf2_doFlex( opStack, - &curX, - &curY, - &glyphPath, - readFromStack, - TRUE /* doConditionalLastRead */ ); - } - continue; + FT_TRACE4(( " roll\n" )); - case cf2_escRESERVED_1: - case cf2_escRESERVED_2: - case cf2_escRESERVED_6: - case cf2_escRESERVED_7: - case cf2_escRESERVED_8: - case cf2_escRESERVED_13: - case cf2_escRESERVED_16: - case cf2_escRESERVED_17: - case cf2_escRESERVED_19: - case cf2_escRESERVED_25: - case cf2_escRESERVED_31: - case cf2_escRESERVED_32: - case cf2_escRESERVED_33: - default: - FT_TRACE4(( " unknown op (12, %d)\n", op2 )); + idx = cf2_stack_popInt( opStack ); + count = cf2_stack_popInt( opStack ); - }; /* end of switch statement checking `op2' */ + cf2_stack_roll( opStack, count, idx ); + } + continue; /* do not clear the stack */ + } /* end of 2nd switch checking op2 */ + } + } + } /* end of 1st switch checking op2 */ } /* case cf2_cmdESC */ + break; case cf2_cmdENDCHAR: @@ -1285,7 +1421,8 @@ /* close path if still open */ cf2_glyphpath_closeOpenPath( &glyphPath ); - if ( cf2_stack_count( opStack ) > 1 ) + /* disable seac for CFF2 (charstring ending with args on stack) */ + if ( !font->isCFF2 && cf2_stack_count( opStack ) > 1 ) { /* must be either 4 or 5 -- */ /* this is a (deprecated) implied `seac' operator */ @@ -1514,7 +1651,7 @@ { x1 = cf2_stack_getReal( opStack, index ) + curX; - ++index; + index++; } else x1 = curX; @@ -1559,7 +1696,7 @@ { y1 = cf2_stack_getReal( opStack, index ) + curY; - ++index; + index++; } else y1 = curY; @@ -1587,7 +1724,7 @@ CF2_UInt count, count1 = cf2_stack_count( opStack ); CF2_UInt index = 0; - FT_Bool alternate = op1 == cf2_cmdHVCURVETO; + FT_Bool alternate = FT_BOOL( op1 == cf2_cmdHVCURVETO ); /* if `cf2_stack_count' isn't of the form 8n, 8n+1, */ @@ -1616,7 +1753,7 @@ { x3 = cf2_stack_getReal( opStack, index + 4 ) + x2; - ++index; + index++; } else x3 = x2; @@ -1635,7 +1772,7 @@ { y3 = cf2_stack_getReal( opStack, index + 4 ) + y2; - ++index; + index++; } else y3 = y2; @@ -1736,7 +1873,7 @@ ( byte3 << 8 ) | byte4 ); - FT_TRACE4(( " %.2f", v / 65536.0 )); + FT_TRACE4(( " %.5f", v / 65536.0 )); cf2_stack_pushFixed( opStack, v ); } @@ -1757,6 +1894,9 @@ /* check whether last error seen is also the first one */ cf2_setError( error, lastError ); + if ( *error ) + FT_TRACE4(( "charstring error %d\n", *error )); + /* free resources from objects we've used */ cf2_glyphpath_finalize( &glyphPath ); cf2_arrstack_finalize( &vStemHintArray ); diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.c b/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.c index 8f3adb6d686..12a026d21d8 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.c @@ -51,7 +51,8 @@ /* `error'). */ FT_LOCAL_DEF( CF2_Stack ) cf2_stack_init( FT_Memory memory, - FT_Error* e ) + FT_Error* e, + FT_UInt stackSize ) { FT_Error error = FT_Err_Ok; /* for FT_NEW */ @@ -63,9 +64,18 @@ /* initialize the structure; FT_NEW zeroes it */ stack->memory = memory; stack->error = e; - stack->top = &stack->buffer[0]; /* empty stack */ } + /* allocate the stack buffer */ + if ( FT_NEW_ARRAY( stack->buffer, stackSize ) ) + { + FT_FREE( stack ); + return NULL; + } + + stack->stackSize = stackSize; + stack->top = stack->buffer; /* empty stack */ + return stack; } @@ -77,6 +87,8 @@ { FT_Memory memory = stack->memory; + /* free the buffer */ + FT_FREE( stack->buffer ); /* free the main structure */ FT_FREE( stack ); @@ -87,7 +99,7 @@ FT_LOCAL_DEF( CF2_UInt ) cf2_stack_count( CF2_Stack stack ) { - return (CF2_UInt)( stack->top - &stack->buffer[0] ); + return (CF2_UInt)( stack->top - stack->buffer ); } @@ -95,7 +107,7 @@ cf2_stack_pushInt( CF2_Stack stack, CF2_Int val ) { - if ( stack->top == &stack->buffer[CF2_OPERAND_STACK_SIZE] ) + if ( stack->top == stack->buffer + stack->stackSize ) { CF2_SET_ERROR( stack->error, Stack_Overflow ); return; /* stack overflow */ @@ -103,7 +115,7 @@ stack->top->u.i = val; stack->top->type = CF2_NumberInt; - ++stack->top; + stack->top++; } @@ -111,7 +123,7 @@ cf2_stack_pushFixed( CF2_Stack stack, CF2_Fixed val ) { - if ( stack->top == &stack->buffer[CF2_OPERAND_STACK_SIZE] ) + if ( stack->top == stack->buffer + stack->stackSize ) { CF2_SET_ERROR( stack->error, Stack_Overflow ); return; /* stack overflow */ @@ -119,7 +131,7 @@ stack->top->u.r = val; stack->top->type = CF2_NumberFixed; - ++stack->top; + stack->top++; } @@ -127,7 +139,7 @@ FT_LOCAL_DEF( CF2_Int ) cf2_stack_popInt( CF2_Stack stack ) { - if ( stack->top == &stack->buffer[0] ) + if ( stack->top == stack->buffer ) { CF2_SET_ERROR( stack->error, Stack_Underflow ); return 0; /* underflow */ @@ -138,7 +150,7 @@ return 0; /* type mismatch */ } - --stack->top; + stack->top--; return stack->top->u.i; } @@ -149,13 +161,13 @@ FT_LOCAL_DEF( CF2_Fixed ) cf2_stack_popFixed( CF2_Stack stack ) { - if ( stack->top == &stack->buffer[0] ) + if ( stack->top == stack->buffer ) { CF2_SET_ERROR( stack->error, Stack_Underflow ); return cf2_intToFixed( 0 ); /* underflow */ } - --stack->top; + stack->top--; switch ( stack->top->type ) { @@ -175,7 +187,7 @@ cf2_stack_getReal( CF2_Stack stack, CF2_UInt idx ) { - FT_ASSERT( cf2_stack_count( stack ) <= CF2_OPERAND_STACK_SIZE ); + FT_ASSERT( cf2_stack_count( stack ) <= stack->stackSize ); if ( idx >= cf2_stack_count( stack ) ) { @@ -195,7 +207,38 @@ } - FT_LOCAL( void ) + /* provide random access to stack */ + FT_LOCAL_DEF( void ) + cf2_stack_setReal( CF2_Stack stack, + CF2_UInt idx, + CF2_Fixed val ) + { + if ( idx > cf2_stack_count( stack ) ) + { + CF2_SET_ERROR( stack->error, Stack_Overflow ); + return; + } + + stack->buffer[idx].u.r = val; + stack->buffer[idx].type = CF2_NumberFixed; + } + + + /* discard (pop) num values from stack */ + FT_LOCAL_DEF( void ) + cf2_stack_pop( CF2_Stack stack, + CF2_UInt num ) + { + if ( num > cf2_stack_count( stack ) ) + { + CF2_SET_ERROR( stack->error, Stack_Underflow ); + return; + } + stack->top -= num; + } + + + FT_LOCAL_DEF( void ) cf2_stack_roll( CF2_Stack stack, CF2_Int count, CF2_Int shift ) @@ -278,7 +321,7 @@ FT_LOCAL_DEF( void ) cf2_stack_clear( CF2_Stack stack ) { - stack->top = &stack->buffer[0]; + stack->top = stack->buffer; } diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.h b/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.h index e740a7ac410..ef08eefe411 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cf2stack.h @@ -62,15 +62,17 @@ FT_BEGIN_HEADER { FT_Memory memory; FT_Error* error; - CF2_StackNumber buffer[CF2_OPERAND_STACK_SIZE]; + CF2_StackNumber* buffer; CF2_StackNumber* top; + FT_UInt stackSize; } CF2_StackRec, *CF2_Stack; FT_LOCAL( CF2_Stack ) cf2_stack_init( FT_Memory memory, - FT_Error* error ); + FT_Error* error, + FT_UInt stackSize ); FT_LOCAL( void ) cf2_stack_free( CF2_Stack stack ); @@ -92,6 +94,14 @@ FT_BEGIN_HEADER FT_LOCAL( CF2_Fixed ) cf2_stack_getReal( CF2_Stack stack, CF2_UInt idx ); + FT_LOCAL( void ) + cf2_stack_setReal( CF2_Stack stack, + CF2_UInt idx, + CF2_Fixed val ); + + FT_LOCAL( void ) + cf2_stack_pop( CF2_Stack stack, + CF2_UInt num ); FT_LOCAL( void ) cf2_stack_roll( CF2_Stack stack, diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffcmap.c b/Build/source/libs/freetype2/freetype-src/src/cff/cffcmap.c index 3ef48328c59..695ba69d946 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffcmap.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffcmap.c @@ -104,15 +104,21 @@ } - FT_DEFINE_CMAP_CLASS(cff_cmap_encoding_class_rec, + FT_DEFINE_CMAP_CLASS( + cff_cmap_encoding_class_rec, + sizeof ( CFF_CMapStdRec ), - (FT_CMap_InitFunc) cff_cmap_encoding_init, - (FT_CMap_DoneFunc) cff_cmap_encoding_done, - (FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index, - (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next, + (FT_CMap_InitFunc) cff_cmap_encoding_init, /* init */ + (FT_CMap_DoneFunc) cff_cmap_encoding_done, /* done */ + (FT_CMap_CharIndexFunc)cff_cmap_encoding_char_index, /* char_index */ + (FT_CMap_CharNextFunc) cff_cmap_encoding_char_next, /* char_next */ - NULL, NULL, NULL, NULL, NULL + (FT_CMap_CharVarIndexFunc) NULL, /* char_var_index */ + (FT_CMap_CharVarIsDefaultFunc)NULL, /* char_var_default */ + (FT_CMap_VariantListFunc) NULL, /* variant_list */ + (FT_CMap_CharVariantListFunc) NULL, /* charvariant_list */ + (FT_CMap_VariantCharListFunc) NULL /* variantchar_list */ ) @@ -202,15 +208,22 @@ } - FT_DEFINE_CMAP_CLASS(cff_cmap_unicode_class_rec, + FT_DEFINE_CMAP_CLASS( + cff_cmap_unicode_class_rec, + sizeof ( PS_UnicodesRec ), - (FT_CMap_InitFunc) cff_cmap_unicode_init, - (FT_CMap_DoneFunc) cff_cmap_unicode_done, - (FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index, - (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next, + (FT_CMap_InitFunc) cff_cmap_unicode_init, /* init */ + (FT_CMap_DoneFunc) cff_cmap_unicode_done, /* done */ + (FT_CMap_CharIndexFunc)cff_cmap_unicode_char_index, /* char_index */ + (FT_CMap_CharNextFunc) cff_cmap_unicode_char_next, /* char_next */ - NULL, NULL, NULL, NULL, NULL + (FT_CMap_CharVarIndexFunc) NULL, /* char_var_index */ + (FT_CMap_CharVarIsDefaultFunc)NULL, /* char_var_default */ + (FT_CMap_VariantListFunc) NULL, /* variant_list */ + (FT_CMap_CharVariantListFunc) NULL, /* charvariant_list */ + (FT_CMap_VariantCharListFunc) NULL /* variantchar_list */ ) + /* END */ diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffdrivr.c b/Build/source/libs/freetype2/freetype-src/src/cff/cffdrivr.c index 67bf09d8c0d..31825286e2f 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffdrivr.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffdrivr.c @@ -32,6 +32,10 @@ #include "cffcmap.h" #include "cffparse.h" +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include FT_SERVICE_MULTIPLE_MASTERS_H +#endif + #include "cfferrs.h" #include "cffpic.h" @@ -207,6 +211,13 @@ if ( flags & FT_LOAD_VERTICAL_LAYOUT ) { +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /* no fast retrieval for blended MM fonts without VVAR table */ + if ( !ttface->is_default_instance && + !( ttface->variation_support & TT_FACE_FLAG_VAR_VADVANCE ) ) + return FT_THROW( Unimplemented_Feature ); +#endif + /* check whether we have data from the `vmtx' table at all; */ /* otherwise we extract the info from the CFF glyphstrings */ /* (instead of synthesizing a global value using the `OS/2' */ @@ -232,6 +243,13 @@ } else { +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + /* no fast retrieval for blended MM fonts without HVAR table */ + if ( !ttface->is_default_instance && + !( ttface->variation_support & TT_FACE_FLAG_VAR_HADVANCE ) ) + return FT_THROW( Unimplemented_Feature ); +#endif + /* check whether we have data from the `hmtx' table at all */ if ( !ttface->horizontal.number_Of_HMetrics ) goto Missing_Table; @@ -291,6 +309,35 @@ FT_Error error; + /* CFF2 table does not have glyph names; */ + /* we need to use `post' table method */ + if ( font->version_major == 2 ) + { + FT_Library library = FT_FACE_LIBRARY( face ); + FT_Module sfnt_module = FT_Get_Module( library, "sfnt" ); + FT_Service_GlyphDict service = + (FT_Service_GlyphDict)ft_module_get_service( + sfnt_module, + FT_SERVICE_ID_GLYPH_DICT, + 0 ); + + + if ( service && service->get_name ) + return service->get_name( FT_FACE( face ), + glyph_index, + buffer, + buffer_max ); + else + { + FT_ERROR(( "cff_get_glyph_name:" + " cannot get glyph name from a CFF2 font\n" + " " + " without the `PSNames' module\n" )); + error = FT_THROW( Missing_Module ); + goto Exit; + } + } + if ( !font->psnames ) { FT_ERROR(( "cff_get_glyph_name:" @@ -332,6 +379,31 @@ cff = (CFF_FontRec *)face->extra.data; charset = &cff->charset; + /* CFF2 table does not have glyph names; */ + /* we need to use `post' table method */ + if ( cff->version_major == 2 ) + { + FT_Library library = FT_FACE_LIBRARY( face ); + FT_Module sfnt_module = FT_Get_Module( library, "sfnt" ); + FT_Service_GlyphDict service = + (FT_Service_GlyphDict)ft_module_get_service( + sfnt_module, + FT_SERVICE_ID_GLYPH_DICT, + 0 ); + + + if ( service && service->name_index ) + return service->name_index( FT_FACE( face ), glyph_name ); + else + { + FT_ERROR(( "cff_get_name_index:" + " cannot get glyph index from a CFF2 font\n" + " " + " without the `PSNames' module\n" )); + return 0; + } + } + FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); if ( !psnames ) return 0; @@ -358,6 +430,7 @@ FT_DEFINE_SERVICE_GLYPHDICTREC( cff_service_glyph_dict, + (FT_GlyphDict_GetNameFunc) cff_get_glyph_name, /* get_name */ (FT_GlyphDict_NameIndexFunc)cff_get_name_index /* name_index */ ) @@ -383,11 +456,11 @@ FT_Error error = FT_Err_Ok; - if ( cff && cff->font_info == NULL ) + if ( cff && !cff->font_info ) { - CFF_FontRecDict dict = &cff->top_font.font_dict; + CFF_FontRecDict dict = &cff->top_font.font_dict; PS_FontInfoRec *font_info = NULL; - FT_Memory memory = face->root.memory; + FT_Memory memory = face->root.memory; if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) ) @@ -421,6 +494,7 @@ FT_DEFINE_SERVICE_PSINFOREC( cff_service_ps_info, + (PS_GetFontInfoFunc) cff_ps_get_font_info, /* ps_get_font_info */ (PS_GetFontExtraFunc) NULL, /* ps_get_font_extra */ (PS_HasGlyphNamesFunc) cff_ps_has_glyph_names, /* ps_has_glyph_names */ @@ -453,7 +527,8 @@ FT_Service_PsFontName service = (FT_Service_PsFontName)ft_module_get_service( sfnt_module, - FT_SERVICE_ID_POSTSCRIPT_FONT_NAME ); + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, + 0 ); if ( service && service->get_ps_font_name ) @@ -466,6 +541,7 @@ FT_DEFINE_SERVICE_PSFONTNAMEREC( cff_service_ps_name, + (FT_PsName_GetFunc)cff_get_ps_name /* get_ps_font_name */ ) @@ -491,21 +567,21 @@ FT_Library library = FT_FACE_LIBRARY( face ); - cmap_info->language = 0; - cmap_info->format = 0; - if ( cmap->clazz != &CFF_CMAP_ENCODING_CLASS_REC_GET && cmap->clazz != &CFF_CMAP_UNICODE_CLASS_REC_GET ) { FT_Module sfnt = FT_Get_Module( library, "sfnt" ); FT_Service_TTCMaps service = (FT_Service_TTCMaps)ft_module_get_service( sfnt, - FT_SERVICE_ID_TT_CMAP ); + FT_SERVICE_ID_TT_CMAP, + 0 ); if ( service && service->get_cmap_info ) error = service->get_cmap_info( charmap, cmap_info ); } + else + error = FT_THROW( Invalid_CharMap_Format ); return error; } @@ -513,6 +589,7 @@ FT_DEFINE_SERVICE_TTCMAPSREC( cff_service_get_cmap_info, + (TT_CMap_Info_GetFunc)cff_get_cmap_info /* get_cmap_info */ ) @@ -544,7 +621,7 @@ if ( registry ) { - if ( cff->registry == NULL ) + if ( !cff->registry ) cff->registry = cff_index_get_sid_string( cff, dict->cid_registry ); *registry = cff->registry; @@ -552,7 +629,7 @@ if ( ordering ) { - if ( cff->ordering == NULL ) + if ( !cff->ordering ) cff->ordering = cff_index_get_sid_string( cff, dict->cid_ordering ); *ordering = cff->ordering; @@ -643,6 +720,7 @@ FT_DEFINE_SERVICE_CIDREC( cff_service_cid_info, + (FT_CID_GetRegistryOrderingSupplementFunc) cff_get_ros, /* get_ros */ (FT_CID_GetIsInternallyCIDKeyedFunc) @@ -855,10 +933,94 @@ FT_DEFINE_SERVICE_PROPERTIESREC( cff_service_properties, + (FT_Properties_SetFunc)cff_property_set, /* set_property */ (FT_Properties_GetFunc)cff_property_get ) /* get_property */ +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + /* + * MULTIPLE MASTER SERVICE + * + */ + + static FT_Error + cff_set_mm_blend( CFF_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + + return mm->set_mm_blend( FT_FACE( face ), num_coords, coords ); + } + + + static FT_Error + cff_get_mm_blend( CFF_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + + return mm->get_mm_blend( FT_FACE( face ), num_coords, coords ); + } + + + static FT_Error + cff_get_mm_var( CFF_Face face, + FT_MM_Var* *master ) + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + + return mm->get_mm_var( FT_FACE( face ), master ); + } + + + static FT_Error + cff_set_var_design( CFF_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + + return mm->set_var_design( FT_FACE( face ), num_coords, coords ); + } + + + static FT_Error + cff_get_var_design( CFF_Face face, + FT_UInt num_coords, + FT_Fixed* coords ) + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + + return mm->get_var_design( FT_FACE( face ), num_coords, coords ); + } + + + FT_DEFINE_SERVICE_MULTIMASTERSREC( + cff_service_multi_masters, + + (FT_Get_MM_Func) NULL, /* get_mm */ + (FT_Set_MM_Design_Func) NULL, /* set_mm_design */ + (FT_Set_MM_Blend_Func) cff_set_mm_blend, /* set_mm_blend */ + (FT_Get_MM_Blend_Func) cff_get_mm_blend, /* get_mm_blend */ + (FT_Get_MM_Var_Func) cff_get_mm_var, /* get_mm_var */ + (FT_Set_Var_Design_Func)cff_set_var_design, /* set_var_design */ + (FT_Get_Var_Design_Func)cff_get_var_design, /* get_var_design */ + + (FT_Get_Var_Blend_Func) cff_get_var_blend, /* get_var_blend */ + (FT_Done_Blend_Func) cff_done_blend /* done_blend */ + ) +#endif + + /*************************************************************************/ /*************************************************************************/ /*************************************************************************/ @@ -871,9 +1033,24 @@ /*************************************************************************/ /*************************************************************************/ -#ifndef FT_CONFIG_OPTION_NO_GLYPH_NAMES +#if !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES && \ + defined TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_DEFINE_SERVICEDESCREC8( + cff_services, + + FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, + FT_SERVICE_ID_MULTI_MASTERS, &CFF_SERVICE_MULTI_MASTERS_GET, + FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_GLYPH_DICT, &CFF_SERVICE_GLYPH_DICT_GET, + FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET, + FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET, + FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET + ) +#elif !defined FT_CONFIG_OPTION_NO_GLYPH_NAMES FT_DEFINE_SERVICEDESCREC7( cff_services, + FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, @@ -882,9 +1059,22 @@ FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET, FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET ) +#elif defined TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_DEFINE_SERVICEDESCREC7( + cff_services, + + FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, + FT_SERVICE_ID_MULTI_MASTERS, &CFF_SERVICE_MULTI_MASTERS_GET, + FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, + FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, + FT_SERVICE_ID_TT_CMAP, &CFF_SERVICE_GET_CMAP_INFO_GET, + FT_SERVICE_ID_CID, &CFF_SERVICE_CID_INFO_GET, + FT_SERVICE_ID_PROPERTIES, &CFF_SERVICE_PROPERTIES_GET + ) #else FT_DEFINE_SERVICEDESCREC6( cff_services, + FT_SERVICE_ID_FONT_FORMAT, FT_FONT_FORMAT_CFF, FT_SERVICE_ID_POSTSCRIPT_INFO, &CFF_SERVICE_PS_INFO_GET, FT_SERVICE_ID_POSTSCRIPT_FONT_NAME, &CFF_SERVICE_PS_NAME_GET, @@ -914,7 +1104,7 @@ #endif result = ft_service_list_lookup( CFF_SERVICES_GET, module_interface ); - if ( result != NULL ) + if ( result ) return result; /* `driver' is not yet evaluated in non-PIC mode */ @@ -954,7 +1144,7 @@ 0x10000L, 0x20000L, - 0, /* module-specific interface */ + NULL, /* module-specific interface */ cff_driver_init, /* FT_Module_Constructor module_init */ cff_driver_done, /* FT_Module_Destructor module_done */ @@ -974,7 +1164,7 @@ cff_glyph_load, /* FT_Slot_LoadFunc load_glyph */ cff_get_kerning, /* FT_Face_GetKerningFunc get_kerning */ - 0, /* FT_Face_AttachFunc attach_file */ + NULL, /* FT_Face_AttachFunc attach_file */ cff_get_advances, /* FT_Face_GetAdvancesFunc get_advances */ cff_size_request, /* FT_Size_RequestFunc request_size */ diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffgload.c b/Build/source/libs/freetype2/freetype-src/src/cff/cffgload.c index 4f375a61231..d8084f865ba 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffgload.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffgload.c @@ -391,7 +391,7 @@ /* clear everything */ - FT_MEM_ZERO( decoder, sizeof ( *decoder ) ); + FT_ZERO( decoder ); /* initialize builder */ cff_builder_init( &decoder->builder, face, size, slot, hinting ); @@ -1026,7 +1026,7 @@ if ( !( val & 0xFFFFL ) ) FT_TRACE4(( " %hd", (FT_Short)( (FT_UInt32)val >> 16 ) )); else - FT_TRACE4(( " %.2f", val / 65536.0 )); + FT_TRACE4(( " %.5f", val / 65536.0 )); #endif } @@ -2445,7 +2445,7 @@ case cff_op_and: { - FT_Fixed cond = args[0] && args[1]; + FT_Fixed cond = ( args[0] && args[1] ); FT_TRACE4(( " and\n" )); @@ -2457,7 +2457,7 @@ case cff_op_or: { - FT_Fixed cond = args[0] || args[1]; + FT_Fixed cond = ( args[0] || args[1] ); FT_TRACE4(( " or\n" )); @@ -2481,7 +2481,7 @@ case cff_op_eq: { - FT_Fixed cond = args[0] == args[1]; + FT_Fixed cond = ( args[0] == args[1] ); FT_TRACE4(( " eq\n" )); diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffload.c b/Build/source/libs/freetype2/freetype-src/src/cff/cffload.c index 470fa82151b..c1e6b14dbff 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffload.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffload.c @@ -23,12 +23,20 @@ #include FT_TRUETYPE_TAGS_H #include FT_TYPE1_TABLES_H +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT +#include FT_MULTIPLE_MASTERS_H +#include FT_SERVICE_MULTIPLE_MASTERS_H +#endif + #include "cffload.h" #include "cffparse.h" #include "cfferrs.h" +#define FT_FIXED_ONE ( (FT_Fixed)0x10000 ) + + #if 1 static const FT_UShort cff_isoadobe_charset[229] = @@ -225,19 +233,33 @@ static FT_Error cff_index_init( CFF_Index idx, FT_Stream stream, - FT_Bool load ) + FT_Bool load, + FT_Bool cff2 ) { FT_Error error; FT_Memory memory = stream->memory; - FT_UShort count; + FT_UInt count; - FT_MEM_ZERO( idx, sizeof ( *idx ) ); + FT_ZERO( idx ); idx->stream = stream; idx->start = FT_STREAM_POS(); - if ( !FT_READ_USHORT( count ) && - count > 0 ) + + if ( cff2 ) + { + if ( FT_READ_ULONG( count ) ) + goto Exit; + idx->hdr_size = 5; + } + else + { + if ( FT_READ_USHORT( count ) ) + goto Exit; + idx->hdr_size = 3; + } + + if ( count > 0 ) { FT_Byte offsize; FT_ULong size; @@ -258,7 +280,7 @@ idx->off_size = offsize; size = (FT_ULong)( count + 1 ) * offsize; - idx->data_offset = idx->start + 3 + size; + idx->data_offset = idx->start + idx->hdr_size + size; if ( FT_STREAM_SKIP( size - offsize ) ) goto Exit; @@ -310,7 +332,7 @@ FT_FRAME_RELEASE( idx->bytes ); FT_FREE( idx->offsets ); - FT_MEM_ZERO( idx, sizeof ( *idx ) ); + FT_ZERO( idx ); } } @@ -323,7 +345,7 @@ FT_Memory memory = stream->memory; - if ( idx->count > 0 && idx->offsets == NULL ) + if ( idx->count > 0 && !idx->offsets ) { FT_Byte offsize = idx->off_size; FT_ULong data_size; @@ -335,7 +357,7 @@ data_size = (FT_ULong)( idx->count + 1 ) * offsize; if ( FT_NEW_ARRAY( idx->offsets, idx->count + 1 ) || - FT_STREAM_SEEK( idx->start + 3 ) || + FT_STREAM_SEEK( idx->start + idx->hdr_size ) || FT_FRAME_ENTER( data_size ) ) goto Exit; @@ -395,7 +417,7 @@ *table = NULL; - if ( idx->offsets == NULL ) + if ( !idx->offsets ) { error = cff_index_load_offsets( idx ); if ( error ) @@ -493,7 +515,7 @@ FT_ULong pos = element * idx->off_size; - if ( FT_STREAM_SEEK( idx->start + 3 + pos ) ) + if ( FT_STREAM_SEEK( idx->start + idx->hdr_size + pos ) ) goto Exit; off1 = cff_index_read_offset( idx, &error ); @@ -589,13 +611,18 @@ FT_UInt element ) { CFF_Index idx = &font->name_index; - FT_Memory memory = idx->stream->memory; + FT_Memory memory; FT_Byte* bytes; FT_ULong byte_len; FT_Error error; FT_String* name = 0; + if ( !idx->stream ) /* CFF2 does not include a name index */ + goto Exit; + + memory = idx->stream->memory; + error = cff_index_access_element( idx, element, &bytes, &byte_len ); if ( error ) goto Exit; @@ -725,6 +752,11 @@ FT_Byte fd = 0; + /* if there is no FDSelect, return zero */ + /* Note: CFF2 with just one Font Dict has no FDSelect */ + if ( !fdselect->data ) + goto Exit; + switch ( fdselect->format ) { case 0: @@ -777,6 +809,7 @@ ; } + Exit: return fd; } @@ -1055,6 +1088,491 @@ static void + cff_vstore_done( CFF_VStoreRec* vstore, + FT_Memory memory ) + { + FT_UInt i; + + + /* free regionList and axisLists */ + if ( vstore->varRegionList ) + { + for ( i = 0; i < vstore->regionCount; i++ ) + FT_FREE( vstore->varRegionList[i].axisList ); + } + FT_FREE( vstore->varRegionList ); + + /* free varData and indices */ + if ( vstore->varData ) + { + for ( i = 0; i < vstore->dataCount; i++ ) + FT_FREE( vstore->varData[i].regionIndices ); + } + FT_FREE( vstore->varData ); + } + + + /* convert 2.14 to Fixed */ + #define FT_fdot14ToFixed( x ) ( ( (FT_Fixed)( (FT_Int16)(x) ) ) << 2 ) + + + static FT_Error + cff_vstore_load( CFF_VStoreRec* vstore, + FT_Stream stream, + FT_ULong base_offset, + FT_ULong offset ) + { + FT_Memory memory = stream->memory; + FT_Error error = FT_ERR( Invalid_File_Format ); + + FT_ULong* dataOffsetArray = NULL; + FT_UInt i, j; + + + /* no offset means no vstore to parse */ + if ( offset ) + { + FT_UInt vsOffset; + FT_UInt format; + FT_ULong regionListOffset; + + + /* we need to parse the table to determine its size; */ + /* skip table length */ + if ( FT_STREAM_SEEK( base_offset + offset ) || + FT_STREAM_SKIP( 2 ) ) + goto Exit; + + /* actual variation store begins after the length */ + vsOffset = FT_STREAM_POS(); + + /* check the header */ + if ( FT_READ_USHORT( format ) ) + goto Exit; + if ( format != 1 ) + { + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + /* read top level fields */ + if ( FT_READ_ULONG( regionListOffset ) || + FT_READ_USHORT( vstore->dataCount ) ) + goto Exit; + + /* make temporary copy of item variation data offsets; */ + /* we'll parse region list first, then come back */ + if ( FT_NEW_ARRAY( dataOffsetArray, vstore->dataCount ) ) + goto Exit; + + for ( i = 0; i < vstore->dataCount; i++ ) + { + if ( FT_READ_ULONG( dataOffsetArray[i] ) ) + goto Exit; + } + + /* parse regionList and axisLists */ + if ( FT_STREAM_SEEK( vsOffset + regionListOffset ) || + FT_READ_USHORT( vstore->axisCount ) || + FT_READ_USHORT( vstore->regionCount ) ) + goto Exit; + + if ( FT_NEW_ARRAY( vstore->varRegionList, vstore->regionCount ) ) + goto Exit; + + for ( i = 0; i < vstore->regionCount; i++ ) + { + CFF_VarRegion* region = &vstore->varRegionList[i]; + + + if ( FT_NEW_ARRAY( region->axisList, vstore->axisCount ) ) + goto Exit; + + for ( j = 0; j < vstore->axisCount; j++ ) + { + CFF_AxisCoords* axis = ®ion->axisList[j]; + + FT_Int16 start14, peak14, end14; + + + if ( FT_READ_SHORT( start14 ) || + FT_READ_SHORT( peak14 ) || + FT_READ_SHORT( end14 ) ) + goto Exit; + + axis->startCoord = FT_fdot14ToFixed( start14 ); + axis->peakCoord = FT_fdot14ToFixed( peak14 ); + axis->endCoord = FT_fdot14ToFixed( end14 ); + } + } + + /* use dataOffsetArray now to parse varData items */ + if ( FT_NEW_ARRAY( vstore->varData, vstore->dataCount ) ) + goto Exit; + + for ( i = 0; i < vstore->dataCount; i++ ) + { + CFF_VarData* data = &vstore->varData[i]; + + + if ( FT_STREAM_SEEK( vsOffset + dataOffsetArray[i] ) ) + goto Exit; + + /* ignore `itemCount' and `shortDeltaCount' */ + /* because CFF2 has no delta sets */ + if ( FT_STREAM_SKIP( 4 ) ) + goto Exit; + + /* Note: just record values; consistency is checked later */ + /* by cff_blend_build_vector when it consumes `vstore' */ + + if ( FT_READ_USHORT( data->regionIdxCount ) ) + goto Exit; + + if ( FT_NEW_ARRAY( data->regionIndices, data->regionIdxCount ) ) + goto Exit; + + for ( j = 0; j < data->regionIdxCount; j++ ) + { + if ( FT_READ_USHORT( data->regionIndices[j] ) ) + goto Exit; + } + } + } + + error = FT_Err_Ok; + + Exit: + FT_FREE( dataOffsetArray ); + if ( error ) + cff_vstore_done( vstore, memory ); + + return error; + } + + + /* Clear blend stack (after blend values are consumed). */ + /* */ + /* TODO: Should do this in cff_run_parse, but subFont */ + /* ref is not available there. */ + /* */ + /* Allocation is not changed when stack is cleared. */ + FT_LOCAL_DEF( void ) + cff_blend_clear( CFF_SubFont subFont ) + { + subFont->blend_top = subFont->blend_stack; + subFont->blend_used = 0; + } + + + /* Blend numOperands on the stack, */ + /* store results into the first numBlends values, */ + /* then pop remaining arguments. */ + /* */ + /* This is comparable to `cf2_doBlend' but */ + /* the cffparse stack is different and can't be written. */ + /* Blended values are written to a different buffer, */ + /* using reserved operator 255. */ + /* */ + /* Blend calculation is done in 16.16 fixed point. */ + FT_LOCAL_DEF( FT_Error ) + cff_blend_doBlend( CFF_SubFont subFont, + CFF_Parser parser, + FT_UInt numBlends ) + { + FT_UInt delta; + FT_UInt base; + FT_UInt i, j; + FT_UInt size; + + CFF_Blend blend = &subFont->blend; + + FT_Memory memory = subFont->blend.font->memory; /* for FT_REALLOC */ + FT_Error error = FT_Err_Ok; /* for FT_REALLOC */ + + /* compute expected number of operands for this blend */ + FT_UInt numOperands = (FT_UInt)( numBlends * blend->lenBV ); + FT_UInt count = (FT_UInt)( parser->top - 1 - parser->stack ); + + + if ( numOperands > count ) + { + FT_TRACE4(( " cff_blend_doBlend: Stack underflow %d args\n", count )); + + error = FT_THROW( Stack_Underflow ); + goto Exit; + } + + /* check whether we have room for `numBlends' values at `blend_top' */ + size = 5 * numBlends; /* add 5 bytes per entry */ + if ( subFont->blend_used + size > subFont->blend_alloc ) + { + /* increase or allocate `blend_stack' and reset `blend_top'; */ + /* prepare to append `numBlends' values to the buffer */ + if ( FT_REALLOC( subFont->blend_stack, + subFont->blend_alloc, + subFont->blend_alloc + size ) ) + goto Exit; + + subFont->blend_top = subFont->blend_stack + subFont->blend_used; + subFont->blend_alloc += size; + } + subFont->blend_used += size; + + base = count - numOperands; /* index of first blend arg */ + delta = base + numBlends; /* index of first delta arg */ + + for ( i = 0; i < numBlends; i++ ) + { + const FT_Int32* weight = &blend->BV[1]; + FT_Int32 sum; + + + /* convert inputs to 16.16 fixed point */ + sum = cff_parse_num( parser, &parser->stack[i + base] ) << 16; + + for ( j = 1; j < blend->lenBV; j++ ) + sum += FT_MulFix( *weight++, + cff_parse_num( parser, + &parser->stack[delta++] ) << 16 ); + + /* point parser stack to new value on blend_stack */ + parser->stack[i + base] = subFont->blend_top; + + /* Push blended result as Type 2 5-byte fixed point number (except */ + /* that host byte order is used). This will not conflict with */ + /* actual DICTs because 255 is a reserved opcode in both CFF and */ + /* CFF2 DICTs. See `cff_parse_num' for decode of this, which rounds */ + /* to an integer. */ + *subFont->blend_top++ = 255; + *((FT_UInt32*)subFont->blend_top) = (FT_UInt32)sum; /* write 4 bytes */ + subFont->blend_top += 4; + } + + /* leave only numBlends results on parser stack */ + parser->top = &parser->stack[base + numBlends]; + + Exit: + return error; + } + + + /* Compute a blend vector from variation store index and normalized */ + /* vector based on pseudo-code in OpenType Font Variations Overview. */ + /* */ + /* Note: lenNDV == 0 produces a default blend vector, (1,0,0,...). */ + FT_LOCAL_DEF( FT_Error ) + cff_blend_build_vector( CFF_Blend blend, + FT_UInt vsindex, + FT_UInt lenNDV, + FT_Fixed* NDV ) + { + FT_Error error = FT_Err_Ok; /* for FT_REALLOC */ + FT_Memory memory = blend->font->memory; /* for FT_REALLOC */ + + FT_UInt len; + CFF_VStore vs; + CFF_VarData* varData; + FT_UInt master; + + + FT_ASSERT( lenNDV == 0 || NDV ); + + blend->builtBV = FALSE; + + vs = &blend->font->vstore; + + /* VStore and fvar must be consistent */ + if ( lenNDV != 0 && lenNDV != vs->axisCount ) + { + FT_TRACE4(( " cff_blend_build_vector: Axis count mismatch\n" )); + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + if ( vsindex >= vs->dataCount ) + { + FT_TRACE4(( " cff_blend_build_vector: vsindex out of range\n" )); + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + /* select the item variation data structure */ + varData = &vs->varData[vsindex]; + + /* prepare buffer for the blend vector */ + len = varData->regionIdxCount + 1; /* add 1 for default component */ + if ( FT_REALLOC( blend->BV, + blend->lenBV * sizeof( *blend->BV ), + len * sizeof( *blend->BV ) ) ) + goto Exit; + + blend->lenBV = len; + + /* outer loop steps through master designs to be blended */ + for ( master = 0; master < len; master++ ) + { + FT_UInt j; + FT_UInt idx; + CFF_VarRegion* varRegion; + + + /* default factor is always one */ + if ( master == 0 ) + { + blend->BV[master] = FT_FIXED_ONE; + FT_TRACE4(( " build blend vector len %d\n" + " [ %f ", + len, + blend->BV[master] / 65536.0 )); + continue; + } + + /* VStore array does not include default master, so subtract one */ + idx = varData->regionIndices[master - 1]; + varRegion = &vs->varRegionList[idx]; + + if ( idx >= vs->regionCount ) + { + FT_TRACE4(( " cff_blend_build_vector:" + " region index out of range\n" )); + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + /* Note: `lenNDV' could be zero. */ + /* In that case, build default blend vector (1,0,0...). */ + /* In the normal case, initialize each component to 1 */ + /* before inner loop. */ + if ( lenNDV != 0 ) + blend->BV[master] = FT_FIXED_ONE; /* default */ + + /* inner loop steps through axes in this region */ + for ( j = 0; j < lenNDV; j++ ) + { + CFF_AxisCoords* axis = &varRegion->axisList[j]; + FT_Fixed axisScalar; + + + /* compute the scalar contribution of this axis; */ + /* ignore invalid ranges */ + if ( axis->startCoord > axis->peakCoord || + axis->peakCoord > axis->endCoord ) + axisScalar = FT_FIXED_ONE; + + else if ( axis->startCoord < 0 && + axis->endCoord > 0 && + axis->peakCoord != 0 ) + axisScalar = FT_FIXED_ONE; + + /* peak of 0 means ignore this axis */ + else if ( axis->peakCoord == 0 ) + axisScalar = FT_FIXED_ONE; + + /* ignore this region if coords are out of range */ + else if ( NDV[j] < axis->startCoord || + NDV[j] > axis->endCoord ) + axisScalar = 0; + + /* calculate a proportional factor */ + else + { + if ( NDV[j] == axis->peakCoord ) + axisScalar = FT_FIXED_ONE; + else if ( NDV[j] < axis->peakCoord ) + axisScalar = FT_DivFix( NDV[j] - axis->startCoord, + axis->peakCoord - axis->startCoord ); + else + axisScalar = FT_DivFix( axis->endCoord - NDV[j], + axis->endCoord - axis->peakCoord ); + } + + /* take product of all the axis scalars */ + blend->BV[master] = FT_MulFix( blend->BV[master], axisScalar ); + } + + FT_TRACE4(( ", %f ", + blend->BV[master] / 65536.0 )); + } + + FT_TRACE4(( "]\n" )); + + /* record the parameters used to build the blend vector */ + blend->lastVsindex = vsindex; + + if ( lenNDV != 0 ) + { + /* user has set a normalized vector */ + if ( FT_REALLOC( blend->lastNDV, + blend->lenNDV * sizeof ( *NDV ), + lenNDV * sizeof ( *NDV ) ) ) + goto Exit; + + blend->lenNDV = lenNDV; + FT_MEM_COPY( blend->lastNDV, + NDV, + lenNDV * sizeof ( *NDV ) ); + } + + blend->builtBV = TRUE; + + Exit: + return error; + } + + + /* `lenNDV' is zero for default vector; */ + /* return TRUE if blend vector needs to be built. */ + FT_LOCAL_DEF( FT_Bool ) + cff_blend_check_vector( CFF_Blend blend, + FT_UInt vsindex, + FT_UInt lenNDV, + FT_Fixed* NDV ) + { + if ( !blend->builtBV || + blend->lastVsindex != vsindex || + blend->lenNDV != lenNDV || + ( lenNDV && + memcmp( NDV, + blend->lastNDV, + lenNDV * sizeof ( *NDV ) ) != 0 ) ) + { + /* need to build blend vector */ + return TRUE; + } + + return FALSE; + } + + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + FT_LOCAL_DEF( FT_Error ) + cff_get_var_blend( CFF_Face face, + FT_UInt *num_coords, + FT_Fixed* *coords, + FT_MM_Var* *mm_var ) + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + + return mm->get_var_blend( FT_FACE( face ), num_coords, coords, mm_var ); + } + + + FT_LOCAL_DEF( void ) + cff_done_blend( CFF_Face face ) + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + + mm->done_blend( FT_FACE( face ) ); + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + + static void cff_encoding_done( CFF_Encoding encoding ) { encoding->format = 0; @@ -1306,31 +1824,127 @@ } + /* Parse private dictionary; first call is always from `cff_face_init', */ + /* so NDV has not been set for CFF2 variation. */ + /* */ + /* `cff_slot_load' must call this function each time NDV changes. */ + FT_LOCAL_DEF( FT_Error ) + cff_load_private_dict( CFF_Font font, + CFF_SubFont subfont, + FT_UInt lenNDV, + FT_Fixed* NDV ) + { + FT_Error error = FT_Err_Ok; + CFF_ParserRec parser; + CFF_FontRecDict top = &subfont->font_dict; + CFF_Private priv = &subfont->private_dict; + FT_Stream stream = font->stream; + FT_UInt stackSize; + + + /* store handle needed to access memory, vstore for blend; */ + /* we need this for clean-up even if there is no private DICT */ + subfont->blend.font = font; + subfont->blend.usedBV = FALSE; /* clear state */ + + if ( !top->private_offset || !top->private_size ) + goto Exit2; /* no private DICT, do nothing */ + + /* set defaults */ + FT_ZERO( priv ); + + priv->blue_shift = 7; + priv->blue_fuzz = 1; + priv->lenIV = -1; + priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); + priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); + + /* provide inputs for blend calculations */ + priv->subfont = subfont; + subfont->lenNDV = lenNDV; + subfont->NDV = NDV; + + stackSize = font->cff2 ? font->top_font.font_dict.maxstack + : CFF_MAX_STACK_DEPTH + 1; + + if ( cff_parser_init( &parser, + font->cff2 ? CFF2_CODE_PRIVATE : CFF_CODE_PRIVATE, + priv, + font->library, + stackSize, + top->num_designs, + top->num_axes ) ) + goto Exit; + + if ( FT_STREAM_SEEK( font->base_offset + top->private_offset ) || + FT_FRAME_ENTER( top->private_size ) ) + goto Exit; + + FT_TRACE4(( " private dictionary:\n" )); + error = cff_parser_run( &parser, + (FT_Byte*)stream->cursor, + (FT_Byte*)stream->limit ); + FT_FRAME_EXIT(); + + if ( error ) + goto Exit; + + /* ensure that `num_blue_values' is even */ + priv->num_blue_values &= ~1; + + Exit: + /* clean up */ + cff_blend_clear( subfont ); /* clear blend stack */ + cff_parser_done( &parser ); /* free parser stack */ + + Exit2: + /* no clean up (parser not initialized) */ + return error; + } + + + /* There are 3 ways to call this function, distinguished by code. */ + /* */ + /* . CFF_CODE_TOPDICT for either a CFF Top DICT or a CFF Font DICT */ + /* . CFF2_CODE_TOPDICT for CFF2 Top DICT */ + /* . CFF2_CODE_FONTDICT for CFF2 Font DICT */ + static FT_Error - cff_subfont_load( CFF_SubFont font, + cff_subfont_load( CFF_SubFont subfont, CFF_Index idx, FT_UInt font_index, FT_Stream stream, FT_ULong base_offset, - FT_Library library ) + FT_UInt code, + CFF_Font font ) { FT_Error error; CFF_ParserRec parser; FT_Byte* dict = NULL; FT_ULong dict_len; - CFF_FontRecDict top = &font->font_dict; - CFF_Private priv = &font->private_dict; - - - cff_parser_init( &parser, - CFF_CODE_TOPDICT, - &font->font_dict, - library, - 0, - 0 ); + CFF_FontRecDict top = &subfont->font_dict; + CFF_Private priv = &subfont->private_dict; + + FT_Bool cff2 = FT_BOOL( code == CFF2_CODE_TOPDICT || + code == CFF2_CODE_FONTDICT ); + FT_UInt stackSize = cff2 ? CFF2_DEFAULT_STACK + : CFF_MAX_STACK_DEPTH; + + + /* Note: We use default stack size for CFF2 Font DICT because */ + /* Top and Font DICTs are not allowed to have blend operators. */ + error = cff_parser_init( &parser, + code, + &subfont->font_dict, + font->library, + stackSize, + 0, + 0 ); + if ( error ) + goto Exit; /* set defaults */ - FT_MEM_ZERO( top, sizeof ( *top ) ); + FT_ZERO( top ); top->underline_position = -( 100L << 16 ); top->underline_thickness = 50L << 16; @@ -1353,14 +1967,35 @@ top->cid_ordering = 0xFFFFU; top->cid_font_name = 0xFFFFU; - error = cff_index_access_element( idx, font_index, &dict, &dict_len ); + /* set default stack size */ + top->maxstack = cff2 ? CFF2_DEFAULT_STACK : 48; + + if ( idx->count ) /* count is nonzero for a real index */ + error = cff_index_access_element( idx, font_index, &dict, &dict_len ); + else + { + /* CFF2 has a fake top dict index; */ + /* simulate `cff_index_access_element' */ + + /* Note: macros implicitly use `stream' and set `error' */ + if ( FT_STREAM_SEEK( idx->data_offset ) || + FT_FRAME_EXTRACT( idx->data_size, dict ) ) + goto Exit; + + dict_len = idx->data_size; + } + if ( !error ) { FT_TRACE4(( " top dictionary:\n" )); error = cff_parser_run( &parser, dict, dict + dict_len ); } - cff_index_forget_element( idx, &dict ); + /* clean up regardless of error */ + if ( idx->count ) + cff_index_forget_element( idx, &dict ); + else + FT_FRAME_RELEASE( dict ); if ( error ) goto Exit; @@ -1369,40 +2004,14 @@ if ( top->cid_registry != 0xFFFFU ) goto Exit; - /* parse the private dictionary, if any */ - if ( top->private_offset && top->private_size ) - { - /* set defaults */ - FT_MEM_ZERO( priv, sizeof ( *priv ) ); - - priv->blue_shift = 7; - priv->blue_fuzz = 1; - priv->lenIV = -1; - priv->expansion_factor = (FT_Fixed)( 0.06 * 0x10000L ); - priv->blue_scale = (FT_Fixed)( 0.039625 * 0x10000L * 1000 ); - - cff_parser_init( &parser, - CFF_CODE_PRIVATE, - priv, - library, - top->num_designs, - top->num_axes ); - - if ( FT_STREAM_SEEK( base_offset + font->font_dict.private_offset ) || - FT_FRAME_ENTER( font->font_dict.private_size ) ) - goto Exit; - - FT_TRACE4(( " private dictionary:\n" )); - error = cff_parser_run( &parser, - (FT_Byte*)stream->cursor, - (FT_Byte*)stream->limit ); - FT_FRAME_EXIT(); - if ( error ) - goto Exit; - - /* ensure that `num_blue_values' is even */ - priv->num_blue_values &= ~1; - } + /* Parse the private dictionary, if any. */ + /* */ + /* CFF2 does not have a private dictionary in the Top DICT */ + /* but may have one in a Font DICT. We need to parse */ + /* the latter here in order to load any local subrs. */ + error = cff_load_private_dict( font, subfont, 0, 0 ); + if ( error ) + goto Exit; /* read the local subrs, if any */ if ( priv->local_subrs_offset ) @@ -1411,17 +2020,19 @@ priv->local_subrs_offset ) ) goto Exit; - error = cff_index_init( &font->local_subrs_index, stream, 1 ); + error = cff_index_init( &subfont->local_subrs_index, stream, 1, cff2 ); if ( error ) goto Exit; - error = cff_index_get_pointers( &font->local_subrs_index, - &font->local_subrs, NULL, NULL ); + error = cff_index_get_pointers( &subfont->local_subrs_index, + &subfont->local_subrs, NULL, NULL ); if ( error ) goto Exit; } Exit: + cff_parser_done( &parser ); /* free parser stack */ + return error; } @@ -1434,6 +2045,10 @@ { cff_index_done( &subfont->local_subrs_index ); FT_FREE( subfont->local_subrs ); + + FT_FREE( subfont->blend.lastNDV ); + FT_FREE( subfont->blend.BV ); + FT_FREE( subfont->blend_stack ); } } @@ -1443,18 +2058,18 @@ FT_Stream stream, FT_Int face_index, CFF_Font font, - FT_Bool pure_cff ) + FT_Bool pure_cff, + FT_Bool cff2 ) { static const FT_Frame_Field cff_header_fields[] = { #undef FT_STRUCTURE #define FT_STRUCTURE CFF_FontRec - FT_FRAME_START( 4 ), + FT_FRAME_START( 3 ), FT_FRAME_BYTE( version_major ), FT_FRAME_BYTE( version_minor ), FT_FRAME_BYTE( header_size ), - FT_FRAME_BYTE( absolute_offsize ), FT_FRAME_END }; @@ -1469,43 +2084,112 @@ FT_ZERO( font ); FT_ZERO( &string_index ); - font->stream = stream; - font->memory = memory; - dict = &font->top_font.font_dict; - base_offset = FT_STREAM_POS(); + dict = &font->top_font.font_dict; + base_offset = FT_STREAM_POS(); + + font->library = library; + font->stream = stream; + font->memory = memory; + font->cff2 = cff2; + font->base_offset = base_offset; /* read CFF font header */ if ( FT_STREAM_READ_FIELDS( cff_header_fields, font ) ) goto Exit; - /* check format */ - if ( font->version_major != 1 || - font->header_size < 4 || - font->absolute_offsize > 4 ) + if ( cff2 ) { - FT_TRACE2(( " not a CFF font header\n" )); - error = FT_THROW( Unknown_File_Format ); - goto Exit; + if ( font->version_major != 2 || + font->header_size < 5 ) + { + FT_TRACE2(( " not a CFF2 font header\n" )); + error = FT_THROW( Unknown_File_Format ); + goto Exit; + } + + if ( FT_READ_USHORT( font->top_dict_length ) ) + goto Exit; + } + else + { + FT_Byte absolute_offset; + + + if ( FT_READ_BYTE( absolute_offset ) ) + goto Exit; + + if ( font->version_major != 1 || + font->header_size < 4 || + absolute_offset > 4 ) + { + FT_TRACE2(( " not a CFF font header\n" )); + error = FT_THROW( Unknown_File_Format ); + goto Exit; + } } /* skip the rest of the header */ - if ( FT_STREAM_SKIP( font->header_size - 4 ) ) + if ( FT_STREAM_SEEK( base_offset + font->header_size ) ) + { + /* For pure CFFs we have read only four bytes so far. Contrary to */ + /* other formats like SFNT those bytes doesn't define a signature; */ + /* it is thus possible that the font isn't a CFF at all. */ + if ( pure_cff ) + { + FT_TRACE2(( " not a CFF file\n" )); + error = FT_THROW( Unknown_File_Format ); + } goto Exit; + } - /* read the name, top dict, string and global subrs index */ - if ( FT_SET_ERROR( cff_index_init( &font->name_index, - stream, 0 ) ) || - FT_SET_ERROR( cff_index_init( &font->font_dict_index, - stream, 0 ) ) || - FT_SET_ERROR( cff_index_init( &string_index, - stream, 1 ) ) || - FT_SET_ERROR( cff_index_init( &font->global_subrs_index, - stream, 1 ) ) || - FT_SET_ERROR( cff_index_get_pointers( &string_index, - &font->strings, - &font->string_pool, - &font->string_pool_size ) ) ) - goto Exit; + if ( cff2 ) + { + /* For CFF2, the top dict data immediately follow the header */ + /* and the length is stored in the header `offSize' field; */ + /* there is no index for it. */ + /* */ + /* Use the `font_dict_index' to save the current position */ + /* and length of data, but leave count at zero as an indicator. */ + FT_ZERO( &font->font_dict_index ); + + font->font_dict_index.data_offset = FT_STREAM_POS(); + font->font_dict_index.data_size = font->top_dict_length; + + /* skip the top dict data for now, we will parse it later */ + if ( FT_STREAM_SKIP( font->top_dict_length ) ) + goto Exit; + + /* next, read the global subrs index */ + if ( FT_SET_ERROR( cff_index_init( &font->global_subrs_index, + stream, 1, cff2 ) ) ) + goto Exit; + } + else + { + /* for CFF, read the name, top dict, string and global subrs index */ + if ( FT_SET_ERROR( cff_index_init( &font->name_index, + stream, 0, cff2 ) ) ) + { + if ( pure_cff ) + { + FT_TRACE2(( " not a CFF file\n" )); + error = FT_THROW( Unknown_File_Format ); + } + goto Exit; + } + + if ( FT_SET_ERROR( cff_index_init( &font->font_dict_index, + stream, 0, cff2 ) ) || + FT_SET_ERROR( cff_index_init( &string_index, + stream, 1, cff2 ) ) || + FT_SET_ERROR( cff_index_init( &font->global_subrs_index, + stream, 1, cff2 ) ) || + FT_SET_ERROR( cff_index_get_pointers( &string_index, + &font->strings, + &font->string_pool, + &font->string_pool_size ) ) ) + goto Exit; + } font->num_strings = string_index.count; @@ -1551,34 +2235,47 @@ subfont_index, stream, base_offset, - library ); + cff2 ? CFF2_CODE_TOPDICT : CFF_CODE_TOPDICT, + font ); if ( error ) goto Exit; if ( FT_STREAM_SEEK( base_offset + dict->charstrings_offset ) ) goto Exit; - error = cff_index_init( &font->charstrings_index, stream, 0 ); + error = cff_index_init( &font->charstrings_index, stream, 0, cff2 ); if ( error ) goto Exit; - /* now, check for a CID font */ - if ( dict->cid_registry != 0xFFFFU ) + /* now, check for a CID or CFF2 font */ + if ( dict->cid_registry != 0xFFFFU || + cff2 ) { CFF_IndexRec fd_index; CFF_SubFont sub = NULL; FT_UInt idx; + /* for CFF2, read the Variation Store if available; */ + /* this must follow the Top DICT parse and precede any Private DICT */ + error = cff_vstore_load( &font->vstore, + stream, + base_offset, + dict->vstore_offset ); + if ( error ) + goto Exit; + /* this is a CID-keyed font, we must now allocate a table of */ /* sub-fonts, then load each of them separately */ if ( FT_STREAM_SEEK( base_offset + dict->cid_fd_array_offset ) ) goto Exit; - error = cff_index_init( &fd_index, stream, 0 ); + error = cff_index_init( &fd_index, stream, 0, cff2 ); if ( error ) goto Exit; + /* Font Dicts are not limited to 256 for CFF2. */ + /* TODO: support this for CFF2 */ if ( fd_index.count > CFF_MAX_CID_FONTS ) { FT_TRACE0(( "cff_font_load: FD array too large in CID font\n" )); @@ -1599,17 +2296,25 @@ { sub = font->subfonts[idx]; FT_TRACE4(( "parsing subfont %u\n", idx )); - error = cff_subfont_load( sub, &fd_index, idx, - stream, base_offset, library ); + error = cff_subfont_load( sub, + &fd_index, + idx, + stream, + base_offset, + cff2 ? CFF2_CODE_FONTDICT + : CFF_CODE_TOPDICT, + font ); if ( error ) goto Fail_CID; } - /* now load the FD Select array */ - error = CFF_Load_FD_Select( &font->fd_select, - font->charstrings_index.count, - stream, - base_offset + dict->cid_fd_select_offset ); + /* now load the FD Select array; */ + /* CFF2 omits FDSelect if there is only one FD */ + if ( !cff2 || fd_index.count > 1 ) + error = CFF_Load_FD_Select( &font->fd_select, + font->charstrings_index.count, + stream, + base_offset + dict->cid_fd_select_offset ); Fail_CID: cff_index_done( &fd_index ); @@ -1637,7 +2342,7 @@ goto Exit; /* read the Charset and Encoding tables if available */ - if ( font->num_glyphs > 0 ) + if ( !cff2 && font->num_glyphs > 0 ) { FT_Bool invert = FT_BOOL( dict->cid_registry != 0xFFFFU && pure_cff ); @@ -1685,7 +2390,7 @@ cff_index_done( &font->charstrings_index ); /* release font dictionaries, but only if working with */ - /* a CID keyed CFF font */ + /* a CID keyed CFF font or a CFF2 font */ if ( font->num_subfonts > 0 ) { for ( idx = 0; idx < font->num_subfonts; idx++ ) @@ -1697,6 +2402,7 @@ cff_encoding_done( &font->encoding ); cff_charset_done( &font->charset, font->stream ); + cff_vstore_done( &font->vstore, memory ); cff_subfont_done( memory, &font->top_font ); diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffload.h b/Build/source/libs/freetype2/freetype-src/src/cff/cffload.h index 1dd07baf112..dc3a2c52368 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffload.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffload.h @@ -22,6 +22,8 @@ #include <ft2build.h> #include "cfftypes.h" +#include "cffparse.h" +#include "cffobjs.h" /* for CFF_Face */ FT_BEGIN_HEADER @@ -60,20 +62,58 @@ FT_BEGIN_HEADER FT_LOCAL( FT_Error ) - cff_font_load( FT_Library library, - FT_Stream stream, - FT_Int face_index, - CFF_Font font, - FT_Bool pure_cff ); + cff_font_load( FT_Library library, + FT_Stream stream, + FT_Int face_index, + CFF_Font font, + FT_Bool pure_cff, + FT_Bool cff2 ); FT_LOCAL( void ) cff_font_done( CFF_Font font ); + FT_LOCAL( FT_Error ) + cff_load_private_dict( CFF_Font font, + CFF_SubFont subfont, + FT_UInt lenNDV, + FT_Fixed* NDV ); + FT_LOCAL( FT_Byte ) cff_fd_select_get( CFF_FDSelect fdselect, FT_UInt glyph_index ); + FT_LOCAL( FT_Bool ) + cff_blend_check_vector( CFF_Blend blend, + FT_UInt vsindex, + FT_UInt lenNDV, + FT_Fixed* NDV ); + + FT_LOCAL( FT_Error ) + cff_blend_build_vector( CFF_Blend blend, + FT_UInt vsindex, + FT_UInt lenNDV, + FT_Fixed* NDV ); + + FT_LOCAL( void ) + cff_blend_clear( CFF_SubFont subFont ); + + FT_LOCAL( FT_Error ) + cff_blend_doBlend( CFF_SubFont subfont, + CFF_Parser parser, + FT_UInt numBlends ); + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + FT_LOCAL( FT_Error ) + cff_get_var_blend( CFF_Face face, + FT_UInt *num_coords, + FT_Fixed* *coords, + FT_MM_Var* *mm_var ); + + FT_LOCAL( void ) + cff_done_blend( CFF_Face face ); +#endif + FT_END_HEADER diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffobjs.c b/Build/source/libs/freetype2/freetype-src/src/cff/cffobjs.c index 0f0769677ff..926effc5236 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffobjs.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffobjs.c @@ -114,7 +114,7 @@ FT_UInt n, count; - FT_MEM_ZERO( priv, sizeof ( *priv ) ); + FT_ZERO( priv ); count = priv->num_blue_values = cpriv->num_blue_values; for ( n = 0; n < count; n++ ) @@ -450,7 +450,7 @@ FT_Int idx; - for ( idx = 1; idx <= style_name_length; ++idx ) + for ( idx = 1; idx <= style_name_length; idx++ ) { if ( family_name[family_name_length - idx] != style_name[style_name_length - idx] ) @@ -469,7 +469,7 @@ family_name[idx] == ' ' || family_name[idx] == '_' || family_name[idx] == '+' ) ) - --idx; + idx--; if ( idx > 0 ) family_name[idx + 1] = '\0'; @@ -491,6 +491,7 @@ FT_Service_PsCMaps psnames; PSHinter_Service pshinter; FT_Bool pure_cff = 1; + FT_Bool cff2 = 0; FT_Bool sfnt_format = 0; FT_Library library = cffface->driver->root.library; @@ -553,8 +554,18 @@ goto Exit; } - /* now load the CFF part of the file */ - error = face->goto_table( face, TTAG_CFF, stream, 0 ); + /* now load the CFF part of the file; */ + /* give priority to CFF2 */ + error = face->goto_table( face, TTAG_CFF2, stream, 0 ); + if ( !error ) + { + cff2 = 1; + face->isCFF2 = cff2; + } + + if ( FT_ERR_EQ( error, Table_Missing ) ) + error = face->goto_table( face, TTAG_CFF, stream, 0 ); + if ( error ) goto Exit; } @@ -579,7 +590,12 @@ goto Exit; face->extra.data = cff; - error = cff_font_load( library, stream, face_index, cff, pure_cff ); + error = cff_font_load( library, + stream, + face_index, + cff, + pure_cff, + cff2 ); if ( error ) goto Exit; @@ -667,6 +683,62 @@ } #endif /* FT_DEBUG_LEVEL_TRACE */ + + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + + { + FT_Service_MultiMasters mm = (FT_Service_MultiMasters)face->mm; + + FT_Int instance_index = face_index >> 16; + + + if ( FT_HAS_MULTIPLE_MASTERS( cffface ) && + mm && + instance_index > 0 ) + { + FT_MM_Var* mm_var; + + + error = mm->get_mm_var( cffface, NULL ); + if ( error ) + goto Exit; + + mm->get_var_blend( cffface, NULL, NULL, &mm_var ); + + if ( mm_var->namedstyle ) + { + FT_Var_Named_Style* named_style; + FT_String* style_name; + + + /* in `face_index', the instance index starts with value 1 */ + named_style = mm_var->namedstyle + instance_index - 1; + error = sfnt->get_name( face, + (FT_UShort)named_style->strid, + &style_name ); + if ( error ) + goto Exit; + + /* set style name; if already set, replace it */ + if ( face->root.style_name ) + FT_FREE( face->root.style_name ); + face->root.style_name = style_name; + + /* finally, select the named instance */ + error = mm->set_var_design( cffface, + mm_var->num_axis, + named_style->coords ); + if ( error ) + goto Exit; + } + } + } + +#endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */ + + + if ( !dict->has_font_matrix ) dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM; @@ -1011,7 +1083,7 @@ error = FT_Err_Ok; /* if no Unicode charmap was previously selected, select this one */ - if ( cffface->charmap == NULL && nn != (FT_UInt)cffface->num_charmaps ) + if ( !cffface->charmap && nn != (FT_UInt)cffface->num_charmaps ) cffface->charmap = cffface->charmaps[nn]; Skip_Unicode: @@ -1079,6 +1151,11 @@ FT_FREE( face->extra.data ); } } + +#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT + cff_done_blend( face ); + face->blend = NULL; +#endif } diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.c b/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.c index a4f986b67cc..ee538c360d4 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.c +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.c @@ -24,6 +24,7 @@ #include "cfferrs.h" #include "cffpic.h" #include "cffgload.h" +#include "cffload.h" /*************************************************************************/ @@ -36,22 +37,52 @@ #define FT_COMPONENT trace_cffparse - FT_LOCAL_DEF( void ) + FT_LOCAL_DEF( FT_Error ) cff_parser_init( CFF_Parser parser, FT_UInt code, void* object, FT_Library library, + FT_UInt stackSize, FT_UShort num_designs, FT_UShort num_axes ) { - FT_MEM_ZERO( parser, sizeof ( *parser ) ); + FT_Memory memory = library->memory; /* for FT_NEW_ARRAY */ + FT_Error error; /* for FT_NEW_ARRAY */ + + + FT_ZERO( parser ); +#if 0 parser->top = parser->stack; +#endif parser->object_code = code; parser->object = object; parser->library = library; parser->num_designs = num_designs; parser->num_axes = num_axes; + + /* allocate the stack buffer */ + if ( FT_NEW_ARRAY( parser->stack, stackSize ) ) + { + FT_FREE( parser->stack ); + goto Exit; + } + + parser->stackSize = stackSize; + parser->top = parser->stack; /* empty stack */ + + Exit: + return error; + } + + + FT_LOCAL_DEF( void ) + cff_parser_done( CFF_Parser parser ) + { + FT_Memory memory = parser->library->memory; /* for FT_FREE */ + + + FT_FREE( parser->stack ); } @@ -402,24 +433,42 @@ /* read a number, either integer or real */ - static FT_Long - cff_parse_num( FT_Byte** d ) + FT_LOCAL_DEF( FT_Long ) + cff_parse_num( CFF_Parser parser, + FT_Byte** d ) { - return **d == 30 ? ( cff_parse_real( d[0], d[1], 0, NULL ) >> 16 ) - : cff_parse_integer( d[0], d[1] ); + if ( **d == 30 ) + { + /* binary-coded decimal is truncated to integer */ + return cff_parse_real( *d, parser->limit, 0, NULL ) >> 16; + } + + else if ( **d == 255 ) + { + /* 16.16 fixed point is used internally for CFF2 blend results. */ + /* Since these are trusted values, a limit check is not needed. */ + + /* After the 255, 4 bytes are in host order. */ + /* Blend result is rounded to integer. */ + return (FT_Long)( *( (FT_UInt32 *) ( d[0] + 1 ) ) + 0x8000U ) >> 16; + } + + else + return cff_parse_integer( *d, parser->limit ); } /* read a floating point number, either integer or real */ static FT_Fixed - do_fixed( FT_Byte** d, - FT_Long scaling ) + do_fixed( CFF_Parser parser, + FT_Byte** d, + FT_Long scaling ) { if ( **d == 30 ) - return cff_parse_real( d[0], d[1], scaling, NULL ); + return cff_parse_real( *d, parser->limit, scaling, NULL ); else { - FT_Long val = cff_parse_integer( d[0], d[1] ); + FT_Long val = cff_parse_integer( *d, parser->limit ); if ( scaling ) @@ -447,19 +496,21 @@ /* read a floating point number, either integer or real */ static FT_Fixed - cff_parse_fixed( FT_Byte** d ) + cff_parse_fixed( CFF_Parser parser, + FT_Byte** d ) { - return do_fixed( d, 0 ); + return do_fixed( parser, d, 0 ); } /* read a floating point number, either integer or real, */ /* but return `10^scaling' times the number read in */ static FT_Fixed - cff_parse_fixed_scaled( FT_Byte** d, - FT_Long scaling ) + cff_parse_fixed_scaled( CFF_Parser parser, + FT_Byte** d, + FT_Long scaling ) { - return do_fixed( d, scaling ); + return do_fixed( parser, d, scaling ); } @@ -467,13 +518,14 @@ /* and return it as precise as possible -- `scaling' returns */ /* the scaling factor (as a power of 10) */ static FT_Fixed - cff_parse_fixed_dynamic( FT_Byte** d, - FT_Long* scaling ) + cff_parse_fixed_dynamic( CFF_Parser parser, + FT_Byte** d, + FT_Long* scaling ) { FT_ASSERT( scaling ); if ( **d == 30 ) - return cff_parse_real( d[0], d[1], 0, scaling ); + return cff_parse_real( *d, parser->limit, 0, scaling ); else { FT_Long number; @@ -543,7 +595,7 @@ for ( i = 0; i < 6; i++ ) { - values[i] = cff_parse_fixed_dynamic( data++, &scalings[i] ); + values[i] = cff_parse_fixed_dynamic( parser, data++, &scalings[i] ); if ( values[i] ) { if ( scalings[i] > max_scaling ) @@ -640,10 +692,10 @@ if ( parser->top >= parser->stack + 4 ) { - bbox->xMin = FT_RoundFix( cff_parse_fixed( data++ ) ); - bbox->yMin = FT_RoundFix( cff_parse_fixed( data++ ) ); - bbox->xMax = FT_RoundFix( cff_parse_fixed( data++ ) ); - bbox->yMax = FT_RoundFix( cff_parse_fixed( data ) ); + bbox->xMin = FT_RoundFix( cff_parse_fixed( parser, data++ ) ); + bbox->yMin = FT_RoundFix( cff_parse_fixed( parser, data++ ) ); + bbox->xMax = FT_RoundFix( cff_parse_fixed( parser, data++ ) ); + bbox->yMax = FT_RoundFix( cff_parse_fixed( parser, data ) ); error = FT_Err_Ok; FT_TRACE4(( " [%d %d %d %d]\n", @@ -672,7 +724,7 @@ FT_Long tmp; - tmp = cff_parse_num( data++ ); + tmp = cff_parse_num( parser, data++ ); if ( tmp < 0 ) { FT_ERROR(( "cff_parse_private_dict: Invalid dictionary size\n" )); @@ -681,7 +733,7 @@ } dict->private_size = (FT_ULong)tmp; - tmp = cff_parse_num( data ); + tmp = cff_parse_num( parser, data ); if ( tmp < 0 ) { FT_ERROR(( "cff_parse_private_dict: Invalid dictionary offset\n" )); @@ -726,7 +778,7 @@ /* currently, we handle only the first argument */ if ( parser->top >= parser->stack + 5 ) { - FT_Long num_designs = cff_parse_num( parser->stack ); + FT_Long num_designs = cff_parse_num( parser, parser->stack ); if ( num_designs > 16 || num_designs < 2 ) @@ -763,11 +815,11 @@ if ( parser->top >= parser->stack + 3 ) { - dict->cid_registry = (FT_UInt)cff_parse_num( data++ ); - dict->cid_ordering = (FT_UInt)cff_parse_num( data++ ); + dict->cid_registry = (FT_UInt)cff_parse_num( parser, data++ ); + dict->cid_ordering = (FT_UInt)cff_parse_num( parser, data++ ); if ( **data == 30 ) FT_TRACE1(( "cff_parse_cid_ros: real supplement is rounded\n" )); - dict->cid_supplement = cff_parse_num( data ); + dict->cid_supplement = cff_parse_num( parser, data ); if ( dict->cid_supplement < 0 ) FT_TRACE1(( "cff_parse_cid_ros: negative supplement %d is found\n", dict->cid_supplement )); @@ -783,6 +835,125 @@ } + static FT_Error + cff_parse_vsindex( CFF_Parser parser ) + { + /* vsindex operator can only be used in a Private DICT */ + CFF_Private priv = (CFF_Private)parser->object; + FT_Byte** data = parser->stack; + CFF_Blend blend; + FT_Error error; + + + if ( !priv || !priv->subfont ) + { + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + blend = &priv->subfont->blend; + + if ( blend->usedBV ) + { + FT_ERROR(( " cff_parse_vsindex: vsindex not allowed after blend\n" )); + error = FT_THROW( Syntax_Error ); + goto Exit; + } + + priv->vsindex = (FT_UInt)cff_parse_num( parser, data++ ); + + FT_TRACE4(( " %d\n", priv->vsindex )); + + error = FT_Err_Ok; + + Exit: + return error; + } + + + static FT_Error + cff_parse_blend( CFF_Parser parser ) + { + /* blend operator can only be used in a Private DICT */ + CFF_Private priv = (CFF_Private)parser->object; + CFF_SubFont subFont; + CFF_Blend blend; + FT_UInt numBlends; + FT_Error error; + + + error = FT_ERR( Stack_Underflow ); + + if ( !priv || !priv->subfont ) + { + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + subFont = priv->subfont; + blend = &subFont->blend; + + if ( cff_blend_check_vector( blend, + priv->vsindex, + subFont->lenNDV, + subFont->NDV ) ) + { + error = cff_blend_build_vector( blend, + priv->vsindex, + subFont->lenNDV, + subFont->NDV ); + if ( error ) + goto Exit; + } + + numBlends = (FT_UInt)cff_parse_num( parser, parser->top - 1 ); + if ( numBlends > parser->stackSize ) + { + FT_ERROR(( "cff_parse_blend: Invalid number of blends\n" )); + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + FT_TRACE4(( " %d values blended\n", numBlends )); + + error = cff_blend_doBlend( subFont, parser, numBlends ); + + blend->usedBV = TRUE; + + Exit: + return error; + } + + + /* maxstack operator increases parser and operand stacks for CFF2 */ + static FT_Error + cff_parse_maxstack( CFF_Parser parser ) + { + /* maxstack operator can only be used in a Top DICT */ + CFF_FontRecDict dict = (CFF_FontRecDict)parser->object; + FT_Byte** data = parser->stack; + FT_Error error = FT_Err_Ok; + + + if ( !dict ) + { + error = FT_THROW( Invalid_File_Format ); + goto Exit; + } + + dict->maxstack = (FT_UInt)cff_parse_num( parser, data++ ); + if ( dict->maxstack > CFF2_MAX_STACK ) + dict->maxstack = CFF2_MAX_STACK; + if ( dict->maxstack < CFF2_DEFAULT_STACK ) + dict->maxstack = CFF2_DEFAULT_STACK; + + FT_TRACE4(( " %d\n", dict->maxstack )); + + Exit: + return error; + } + + #define CFF_FIELD_NUM( code, name, id ) \ CFF_FIELD( code, name, id, cff_kind_num ) #define CFF_FIELD_FIXED( code, name, id ) \ @@ -794,9 +965,6 @@ #define CFF_FIELD_BOOL( code, name, id ) \ CFF_FIELD( code, name, id, cff_kind_bool ) -#define CFFCODE_TOPDICT 0x1000 -#define CFFCODE_PRIVATE 0x2000 - #ifndef FT_CONFIG_OPTION_PIC @@ -817,6 +985,15 @@ 0, 0 \ }, +#define CFF_FIELD_BLEND( code, id ) \ + { \ + cff_kind_blend, \ + code | CFFCODE, \ + 0, 0, \ + cff_parse_blend, \ + 0, 0 \ + }, + #define CFF_FIELD( code, name, id, kind ) \ { \ kind, \ @@ -860,6 +1037,16 @@ id \ }, +#define CFF_FIELD_BLEND( code, id ) \ + { \ + cff_kind_blend, \ + code | CFFCODE, \ + 0, 0, \ + cff_parse_blend, \ + 0, 0, \ + id \ + }, + #define CFF_FIELD( code, name, id, kind ) \ { \ kind, \ @@ -1067,11 +1254,13 @@ { FT_UInt v = *p; - - if ( v >= 27 && v != 31 ) + /* Opcode 31 is legacy MM T2 operator, not a number. */ + /* Opcode 255 is reserved and should not appear in fonts; */ + /* it is used internally for CFF2 blends. */ + if ( v >= 27 && v != 31 && v != 255 ) { /* it's a number; we will push its position on the stack */ - if ( parser->top - parser->stack >= CFF_MAX_STACK_DEPTH ) + if ( (FT_UInt)( parser->top - parser->stack ) >= parser->stackSize ) goto Stack_Overflow; *parser->top++ = p; @@ -1132,8 +1321,8 @@ charstring_len = (FT_ULong)( p - charstring_base ) + 1; /* construct CFF_Decoder object */ - FT_MEM_ZERO( &decoder, sizeof ( decoder ) ); - FT_MEM_ZERO( &cff_rec, sizeof ( cff_rec ) ); + FT_ZERO( &decoder ); + FT_ZERO( &cff_rec ); cff_rec.top_font.font_dict.num_designs = parser->num_designs; cff_rec.top_font.font_dict.num_axes = parser->num_axes; @@ -1162,7 +1351,7 @@ FT_Bool neg; - if ( parser->top - parser->stack >= CFF_MAX_STACK_DEPTH ) + if ( (FT_UInt)( parser->top - parser->stack ) >= parser->stackSize ) goto Stack_Overflow; *parser->top++ = q; @@ -1239,13 +1428,17 @@ /* and look for it in our current list. */ FT_UInt code; - FT_UInt num_args = (FT_UInt) - ( parser->top - parser->stack ); + FT_UInt num_args; const CFF_Field_Handler* field; + if ( (FT_UInt)( parser->top - parser->stack ) >= parser->stackSize ) + goto Stack_Overflow; + + num_args = (FT_UInt)( parser->top - parser->stack ); *parser->top = p; - code = v; + code = v; + if ( v == 12 ) { /* two byte operator */ @@ -1280,15 +1473,15 @@ case cff_kind_bool: case cff_kind_string: case cff_kind_num: - val = cff_parse_num( parser->stack ); + val = cff_parse_num( parser, parser->stack ); goto Store_Number; case cff_kind_fixed: - val = cff_parse_fixed( parser->stack ); + val = cff_parse_fixed( parser, parser->stack ); goto Store_Number; case cff_kind_fixed_thousand: - val = cff_parse_fixed_scaled( parser->stack, 3 ); + val = cff_parse_fixed_scaled( parser, parser->stack, 3 ); Store_Number: switch ( field->size ) @@ -1357,7 +1550,7 @@ val = 0; while ( num_args > 0 ) { - val += cff_parse_num( data++ ); + val += cff_parse_num( parser, data++ ); switch ( field->size ) { case (8 / FT_CHAR_BIT): @@ -1386,7 +1579,7 @@ } break; - default: /* callback */ + default: /* callback or blend */ error = field->reader( parser ); if ( error ) goto Exit; @@ -1400,7 +1593,10 @@ Found: /* clear stack */ - parser->top = parser->stack; + /* TODO: could clear blend stack here, */ + /* but we don't have access to subFont */ + if ( field->kind != cff_kind_blend ) + parser->top = parser->stack; } p++; } diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h b/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h index a95970edcb0..6088fec21c5 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffparse.h @@ -28,10 +28,17 @@ FT_BEGIN_HEADER + /* CFF uses constant parser stack size; */ + /* CFF2 can increase from default 193 */ #define CFF_MAX_STACK_DEPTH 96 +#define CFF2_MAX_STACK 513 +#define CFF2_DEFAULT_STACK 193 -#define CFF_CODE_TOPDICT 0x1000 -#define CFF_CODE_PRIVATE 0x2000 +#define CFF_CODE_TOPDICT 0x1000 +#define CFF_CODE_PRIVATE 0x2000 +#define CFF2_CODE_TOPDICT 0x3000 +#define CFF2_CODE_FONTDICT 0x4000 +#define CFF2_CODE_PRIVATE 0x5000 typedef struct CFF_ParserRec_ @@ -41,8 +48,9 @@ FT_BEGIN_HEADER FT_Byte* limit; FT_Byte* cursor; - FT_Byte* stack[CFF_MAX_STACK_DEPTH + 1]; + FT_Byte** stack; FT_Byte** top; + FT_UInt stackSize; /* allocated size */ FT_UInt object_code; void* object; @@ -53,14 +61,22 @@ FT_BEGIN_HEADER } CFF_ParserRec, *CFF_Parser; - FT_LOCAL( void ) + FT_LOCAL( FT_Long ) + cff_parse_num( CFF_Parser parser, + FT_Byte** d ); + + FT_LOCAL( FT_Error ) cff_parser_init( CFF_Parser parser, FT_UInt code, void* object, FT_Library library, + FT_UInt stackSize, FT_UShort num_designs, FT_UShort num_axes ); + FT_LOCAL( void ) + cff_parser_done( CFF_Parser parser ); + FT_LOCAL( FT_Error ) cff_parser_run( CFF_Parser parser, FT_Byte* start, @@ -77,6 +93,7 @@ FT_BEGIN_HEADER cff_kind_bool, cff_kind_delta, cff_kind_callback, + cff_kind_blend, cff_kind_max /* do not remove */ }; diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cffpic.h b/Build/source/libs/freetype2/freetype-src/src/cff/cffpic.h index bed6b35a863..4737b9e38a8 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cffpic.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cffpic.h @@ -32,6 +32,7 @@ #define CFF_SERVICE_CID_INFO_GET cff_service_cid_info #define CFF_SERVICE_PROPERTIES_GET cff_service_properties #define CFF_SERVICES_GET cff_services +#define CFF_SERVICE_MULTI_MASTERS_GET cff_service_multi_masters #define CFF_CMAP_ENCODING_CLASS_REC_GET cff_cmap_encoding_class_rec #define CFF_CMAP_UNICODE_CLASS_REC_GET cff_cmap_unicode_class_rec #define CFF_FIELD_HANDLERS_GET cff_field_handlers diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cfftoken.h b/Build/source/libs/freetype2/freetype-src/src/cff/cfftoken.h index 22637c780bc..fd41c6c7110 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cfftoken.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cfftoken.h @@ -20,7 +20,7 @@ #define FT_STRUCTURE CFF_FontRecDictRec #undef CFFCODE -#define CFFCODE CFFCODE_TOPDICT +#define CFFCODE CFF_CODE_TOPDICT CFF_FIELD_STRING ( 0, version, "Version" ) CFF_FIELD_STRING ( 1, notice, "Notice" ) @@ -78,7 +78,7 @@ #undef FT_STRUCTURE #define FT_STRUCTURE CFF_PrivateRec #undef CFFCODE -#define CFFCODE CFFCODE_PRIVATE +#define CFFCODE CFF_CODE_PRIVATE CFF_FIELD_DELTA ( 6, blue_values, 14, "BlueValues" ) CFF_FIELD_DELTA ( 7, other_blues, 10, "OtherBlues" ) @@ -102,4 +102,49 @@ CFF_FIELD_NUM ( 21, nominal_width, "nominalWidthX" ) +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_FontRecDictRec +#undef CFFCODE +#define CFFCODE CFF2_CODE_TOPDICT + + CFF_FIELD_CALLBACK( 0x107, font_matrix, "FontMatrix" ) + CFF_FIELD_NUM ( 17, charstrings_offset, "CharStrings" ) + CFF_FIELD_NUM ( 0x124, cid_fd_array_offset, "FDArray" ) + CFF_FIELD_NUM ( 0x125, cid_fd_select_offset, "FDSelect" ) + CFF_FIELD_NUM ( 24, vstore_offset, "vstore" ) + CFF_FIELD_CALLBACK( 25, maxstack, "maxstack" ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_FontRecDictRec +#undef CFFCODE +#define CFFCODE CFF2_CODE_FONTDICT + + CFF_FIELD_CALLBACK( 18, private_dict, "Private" ) + CFF_FIELD_CALLBACK( 0x107, font_matrix, "FontMatrix" ) + + +#undef FT_STRUCTURE +#define FT_STRUCTURE CFF_PrivateRec +#undef CFFCODE +#define CFFCODE CFF2_CODE_PRIVATE + + CFF_FIELD_DELTA ( 6, blue_values, 14, "BlueValues" ) + CFF_FIELD_DELTA ( 7, other_blues, 10, "OtherBlues" ) + CFF_FIELD_DELTA ( 8, family_blues, 14, "FamilyBlues" ) + CFF_FIELD_DELTA ( 9, family_other_blues, 10, "FamilyOtherBlues" ) + CFF_FIELD_FIXED_1000( 0x109, blue_scale, "BlueScale" ) + CFF_FIELD_NUM ( 0x10A, blue_shift, "BlueShift" ) + CFF_FIELD_NUM ( 0x10B, blue_fuzz, "BlueFuzz" ) + CFF_FIELD_NUM ( 10, standard_width, "StdHW" ) + CFF_FIELD_NUM ( 11, standard_height, "StdVW" ) + CFF_FIELD_DELTA ( 0x10C, snap_widths, 13, "StemSnapH" ) + CFF_FIELD_DELTA ( 0x10D, snap_heights, 13, "StemSnapV" ) + CFF_FIELD_NUM ( 0x111, language_group, "LanguageGroup" ) + CFF_FIELD_FIXED ( 0x112, expansion_factor, "ExpansionFactor" ) + CFF_FIELD_CALLBACK ( 22, vsindex, "vsindex" ) + CFF_FIELD_BLEND ( 23, "blend" ) + CFF_FIELD_NUM ( 19, local_subrs_offset, "Subrs" ) + + /* END */ diff --git a/Build/source/libs/freetype2/freetype-src/src/cff/cfftypes.h b/Build/source/libs/freetype2/freetype-src/src/cff/cfftypes.h index 4426c7e4f15..4dae0f281e8 100644 --- a/Build/source/libs/freetype2/freetype-src/src/cff/cfftypes.h +++ b/Build/source/libs/freetype2/freetype-src/src/cff/cfftypes.h @@ -64,6 +64,7 @@ FT_BEGIN_HEADER { FT_Stream stream; FT_ULong start; + FT_UInt hdr_size; FT_UInt count; FT_Byte off_size; FT_ULong data_offset; @@ -102,6 +103,79 @@ FT_BEGIN_HEADER } CFF_CharsetRec, *CFF_Charset; + /* cf. similar fields in file `ttgxvar.h' from the `truetype' module */ + + typedef struct CFF_VarData_ + { +#if 0 + FT_UInt itemCount; /* not used; always zero */ + FT_UInt shortDeltaCount; /* not used; always zero */ +#endif + + FT_UInt regionIdxCount; /* number of regions in this var data */ + FT_UInt* regionIndices; /* array of `regionCount' indices; */ + /* these index `varRegionList' */ + } CFF_VarData; + + + /* contribution of one axis to a region */ + typedef struct CFF_AxisCoords_ + { + FT_Fixed startCoord; + FT_Fixed peakCoord; /* zero peak means no effect (factor = 1) */ + FT_Fixed endCoord; + + } CFF_AxisCoords; + + + typedef struct CFF_VarRegion_ + { + CFF_AxisCoords* axisList; /* array of axisCount records */ + + } CFF_VarRegion; + + + typedef struct CFF_VStoreRec_ + { + FT_UInt dataCount; + CFF_VarData* varData; /* array of dataCount records */ + /* vsindex indexes this array */ + FT_UShort axisCount; + FT_UInt regionCount; /* total number of regions defined */ + CFF_VarRegion* varRegionList; + + } CFF_VStoreRec, *CFF_VStore; + + + /* forward reference */ + typedef struct CFF_FontRec_* CFF_Font; + + + /* This object manages one cached blend vector. */ + /* */ + /* There is a BlendRec for Private DICT parsing in each subfont */ + /* and a BlendRec for charstrings in CF2_Font instance data. */ + /* A cached BV may be used across DICTs or Charstrings if inputs */ + /* have not changed. */ + /* */ + /* `usedBV' is reset at the start of each parse or charstring. */ + /* vsindex cannot be changed after a BV is used. */ + /* */ + /* Note: NDV is long (32/64 bit), while BV is 16.16 (FT_Int32). */ + typedef struct CFF_BlendRec_ + { + FT_Bool builtBV; /* blendV has been built */ + FT_Bool usedBV; /* blendV has been used */ + CFF_Font font; /* top level font struct */ + FT_UInt lastVsindex; /* last vsindex used */ + FT_UInt lenNDV; /* normDV length (aka numAxes) */ + FT_Fixed* lastNDV; /* last NDV used */ + FT_UInt lenBV; /* BlendV length (aka numMasters) */ + FT_Int32* BV; /* current blendV (per DICT/glyph) */ + + } CFF_BlendRec, *CFF_Blend; + + typedef struct CFF_FontRecDictRec_ { FT_UInt version; @@ -151,9 +225,17 @@ FT_BEGIN_HEADER FT_UShort num_designs; FT_UShort num_axes; + /* fields for CFF2 */ + FT_ULong vstore_offset; + FT_UInt maxstack; + } CFF_FontRecDictRec, *CFF_FontRecDict; + /* forward reference */ + typedef struct CFF_SubFontRec_* CFF_SubFont; + + typedef struct CFF_PrivateRec_ { FT_Byte num_blue_values; @@ -186,6 +268,10 @@ FT_BEGIN_HEADER FT_Pos default_width; FT_Pos nominal_width; + /* fields for CFF2 */ + FT_UInt vsindex; + CFF_SubFont subfont; + } CFF_PrivateRec, *CFF_Private; @@ -213,10 +299,29 @@ FT_BEGIN_HEADER CFF_FontRecDictRec font_dict; CFF_PrivateRec private_dict; - CFF_IndexRec local_subrs_index; - FT_Byte** local_subrs; /* array of pointers into Local Subrs INDEX data */ + /* fields for CFF2 */ + CFF_BlendRec blend; /* current blend vector */ + FT_UInt lenNDV; /* current length NDV or zero */ + FT_Fixed* NDV; /* ptr to current NDV or NULL */ + + /* `blend_stack' is a writable buffer to hold blend results. */ + /* This buffer is to the side of the normal cff parser stack; */ + /* `cff_parse_blend' and `cff_blend_doBlend' push blend results here. */ + /* The normal stack then points to these values instead of the DICT */ + /* because all other operators in Private DICT clear the stack. */ + /* `blend_stack' could be cleared at each operator other than blend. */ + /* Blended values are stored as 5-byte fixed point values. */ + + FT_Byte* blend_stack; /* base of stack allocation */ + FT_Byte* blend_top; /* first empty slot */ + FT_UInt blend_used; /* number of bytes in use */ + FT_UInt blend_alloc; /* number of bytes allocated */ - } CFF_SubFontRec, *CFF_SubFont; + CFF_IndexRec local_subrs_index; + FT_Byte** local_subrs; /* array of pointers */ + /* into Local Subrs INDEX data */ + + } CFF_SubFontRec; #define CFF_MAX_CID_FONTS 256 @@ -224,16 +329,20 @@ FT_BEGIN_HEADER typedef struct CFF_FontRec_ { + FT_Library library; FT_Stream stream; - FT_Memory memory; + FT_Memory memory; /* TODO: take this from stream->memory? */ + FT_ULong base_offset; /* offset to start of CFF */ FT_UInt num_faces; FT_UInt num_glyphs; FT_Byte version_major; FT_Byte version_minor; FT_Byte header_size; - FT_Byte absolute_offsize; + FT_UInt top_dict_length; /* cff2 only */ + + FT_Bool cff2; CFF_IndexRec name_index; CFF_IndexRec top_dict_index; @@ -280,7 +389,9 @@ FT_BEGIN_HEADER /* since version 2.4.12 */ FT_Generic cf2_instance; - } CFF_FontRec, *CFF_Font; + CFF_VStoreRec vstore; /* parsed vstore structure */ + + } CFF_FontRec; FT_END_HEADER |