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Diffstat (limited to 'third_party/freetype/src/cff/cf2intrp.c')
-rw-r--r--third_party/freetype/src/cff/cf2intrp.c686
1 files changed, 514 insertions, 172 deletions
diff --git a/third_party/freetype/src/cff/cf2intrp.c b/third_party/freetype/src/cff/cf2intrp.c
index ff3fa9aaaa..6bf298a4d6 100644
--- a/third_party/freetype/src/cff/cf2intrp.c
+++ b/third_party/freetype/src/cff/cf2intrp.c
@@ -47,6 +47,8 @@
#include "cf2error.h"
+#include "cffload.h"
+
/*************************************************************************/
/* */
@@ -184,7 +186,7 @@
return;
FT_ASSERT( hintmask->byteCount > 0 );
- FT_ASSERT( hintmask->byteCount <
+ FT_ASSERT( hintmask->byteCount <=
sizeof ( hintmask->mask ) / sizeof ( hintmask->mask[0] ) );
/* set mask to all ones */
@@ -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 */
};
@@ -293,7 +296,8 @@
/* variable accumulates delta values from operand stack */
CF2_Fixed position = hintOffset;
- if ( hasWidthArg && ! *haveWidth )
+
+ if ( hasWidthArg && !*haveWidth )
*width = cf2_stack_getReal( opStack, 0 ) +
cf2_getNominalWidthX( font->decoder );
@@ -343,7 +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++ )
@@ -402,6 +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
@@ -444,8 +485,11 @@
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' */
+
/* instruction limit; 20,000,000 matches Avalon */
FT_UInt32 instructionLimit = 20000000UL;
@@ -466,6 +510,8 @@
CF2_GlyphPathRec glyphPath;
+ FT_ZERO( &storage );
+
/* initialize the remaining objects */
cf2_arrstack_init( &subrStack,
memory,
@@ -515,19 +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 );
@@ -556,14 +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;
@@ -581,13 +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" ));
@@ -608,7 +733,7 @@
0 );
if ( font->decoder->width_only )
- goto exit;
+ goto exit;
break;
@@ -632,7 +757,7 @@
0 );
if ( font->decoder->width_only )
- goto exit;
+ goto exit;
break;
@@ -646,7 +771,7 @@
haveWidth = TRUE;
if ( font->decoder->width_only )
- goto exit;
+ goto exit;
curY += cf2_stack_popFixed( opStack );
@@ -680,7 +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" ));
@@ -746,7 +871,7 @@
case cf2_cmdCALLGSUBR:
case cf2_cmdCALLSUBR:
{
- CF2_UInt subrIndex;
+ CF2_Int subrNum;
FT_TRACE4(( op1 == cf2_cmdCALLGSUBR ? " callgsubr"
@@ -766,17 +891,17 @@
(size_t)charstringIndex + 1 );
/* set up the new CFF region and pointer */
- subrIndex = (CF2_UInt)cf2_stack_popInt( opStack );
+ subrNum = cf2_stack_popInt( opStack );
switch ( op1 )
{
case cf2_cmdCALLGSUBR:
FT_TRACE4(( " (idx %d, entering level %d)\n",
- subrIndex + (CF2_UInt)decoder->globals_bias,
+ subrNum + decoder->globals_bias,
charstringIndex + 1 ));
if ( cf2_initGlobalRegionBuffer( decoder,
- subrIndex,
+ subrNum,
charstring ) )
{
lastError = FT_THROW( Invalid_Glyph_Format );
@@ -787,11 +912,11 @@
default:
/* cf2_cmdCALLSUBR */
FT_TRACE4(( " (idx %d, entering level %d)\n",
- subrIndex + (CF2_UInt)decoder->locals_bias,
+ subrNum + decoder->locals_bias,
charstringIndex + 1 ));
if ( cf2_initLocalRegionBuffer( decoder,
- subrIndex,
+ subrNum,
charstring ) )
{
lastError = FT_THROW( Invalid_Glyph_Format );
@@ -825,135 +950,10 @@
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" ));
-
- break;
-
- /* TODO: should these operators be supported? */
- case cf2_escAND: /* in spec */
- FT_TRACE4(( " and\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escOR: /* in spec */
- FT_TRACE4(( " or\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escNOT: /* in spec */
- FT_TRACE4(( " not\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escABS: /* in spec */
- FT_TRACE4(( " abs\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escADD: /* in spec */
- FT_TRACE4(( " add\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escSUB: /* in spec */
- FT_TRACE4(( " sub\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escDIV: /* in spec */
- FT_TRACE4(( " div\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escNEG: /* in spec */
- FT_TRACE4(( " neg\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escEQ: /* in spec */
- FT_TRACE4(( " eq\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escDROP: /* in spec */
- FT_TRACE4(( " drop\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escPUT: /* in spec */
- FT_TRACE4(( " put\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escGET: /* in spec */
- FT_TRACE4(( " get\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escIFELSE: /* in spec */
- FT_TRACE4(( " ifelse\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escRANDOM: /* in spec */
- FT_TRACE4(( " random\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escMUL: /* in spec */
- FT_TRACE4(( " mul\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escSQRT: /* in spec */
- FT_TRACE4(( " sqrt\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escDUP: /* in spec */
- FT_TRACE4(( " dup\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escEXCH: /* in spec */
- FT_TRACE4(( " exch\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escINDEX: /* in spec */
- FT_TRACE4(( " index\n" ));
-
- CF2_FIXME;
- break;
-
- case cf2_escROLL: /* in spec */
- FT_TRACE4(( " roll\n" ));
-
- CF2_FIXME;
- break;
-
case cf2_escHFLEX:
{
static const FT_Bool readFromStack[12] =
@@ -1050,6 +1050,7 @@
}
continue;
+ /* these opcodes are reserved in both CFF & CFF2 */
case cf2_escRESERVED_1:
case cf2_escRESERVED_2:
case cf2_escRESERVED_6:
@@ -1063,12 +1064,342 @@
case cf2_escRESERVED_31:
case cf2_escRESERVED_32:
case cf2_escRESERVED_33:
- default:
FT_TRACE4(( " unknown op (12, %d)\n", op2 ));
+ break;
+
+ default:
+ {
+ 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" ));
+
+ break;
+
+ case cf2_escAND:
+ {
+ CF2_F16Dot16 arg1;
+ CF2_F16Dot16 arg2;
+
+
+ FT_TRACE4(( " and\n" ));
+
+ arg2 = cf2_stack_popFixed( opStack );
+ arg1 = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushInt( opStack, arg1 && arg2 );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escOR:
+ {
+ CF2_F16Dot16 arg1;
+ CF2_F16Dot16 arg2;
+
+
+ FT_TRACE4(( " or\n" ));
+
+ arg2 = cf2_stack_popFixed( opStack );
+ arg1 = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushInt( opStack, arg1 || arg2 );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escNOT:
+ {
+ CF2_F16Dot16 arg;
+
+
+ FT_TRACE4(( " not\n" ));
+
+ arg = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushInt( opStack, !arg );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escABS:
+ {
+ CF2_F16Dot16 arg;
+
+
+ FT_TRACE4(( " abs\n" ));
+
+ arg = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, FT_ABS( arg ) );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escADD:
+ {
+ CF2_F16Dot16 summand1;
+ CF2_F16Dot16 summand2;
+
+
+ FT_TRACE4(( " add\n" ));
+
+ summand2 = cf2_stack_popFixed( opStack );
+ summand1 = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, summand1 + summand2 );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escSUB:
+ {
+ CF2_F16Dot16 minuend;
+ CF2_F16Dot16 subtrahend;
+
+
+ FT_TRACE4(( " sub\n" ));
+
+ subtrahend = cf2_stack_popFixed( opStack );
+ minuend = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, minuend - subtrahend );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escDIV:
+ {
+ CF2_F16Dot16 dividend;
+ CF2_F16Dot16 divisor;
+
+
+ FT_TRACE4(( " div\n" ));
+
+ divisor = cf2_stack_popFixed( opStack );
+ dividend = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, FT_DivFix( dividend, divisor ) );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escNEG:
+ {
+ CF2_F16Dot16 arg;
+
+
+ FT_TRACE4(( " neg\n" ));
+
+ arg = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, -arg );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escEQ:
+ {
+ CF2_F16Dot16 arg1;
+ CF2_F16Dot16 arg2;
+
+
+ FT_TRACE4(( " eq\n" ));
+
+ arg2 = cf2_stack_popFixed( opStack );
+ arg1 = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushInt( opStack, arg1 == arg2 );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escDROP:
+ FT_TRACE4(( " drop\n" ));
+
+ (void)cf2_stack_popFixed( opStack );
+ continue; /* do not clear the stack */
+
+ case cf2_escPUT:
+ {
+ CF2_F16Dot16 val;
+ CF2_Int idx;
+
+
+ FT_TRACE4(( " put\n" ));
- }; /* end of switch statement checking `op2' */
+ idx = cf2_stack_popInt( opStack );
+ val = cf2_stack_popFixed( opStack );
+ if ( idx >= 0 && idx < CF2_STORAGE_SIZE )
+ storage[idx] = val;
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escGET:
+ {
+ CF2_Int idx;
+
+
+ FT_TRACE4(( " get\n" ));
+
+ idx = cf2_stack_popInt( opStack );
+
+ if ( idx >= 0 && idx < CF2_STORAGE_SIZE )
+ cf2_stack_pushFixed( opStack, storage[idx] );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escIFELSE:
+ {
+ CF2_F16Dot16 arg1;
+ CF2_F16Dot16 arg2;
+ CF2_F16Dot16 cond1;
+ CF2_F16Dot16 cond2;
+
+
+ FT_TRACE4(( " ifelse\n" ));
+
+ cond2 = cf2_stack_popFixed( opStack );
+ cond1 = cf2_stack_popFixed( opStack );
+ arg2 = cf2_stack_popFixed( opStack );
+ arg1 = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, cond1 <= cond2 ? arg1 : arg2 );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escRANDOM: /* in spec */
+ FT_TRACE4(( " random\n" ));
+
+ CF2_FIXME;
+ break;
+
+ case cf2_escMUL:
+ {
+ CF2_F16Dot16 factor1;
+ CF2_F16Dot16 factor2;
+
+
+ FT_TRACE4(( " mul\n" ));
+
+ factor2 = cf2_stack_popFixed( opStack );
+ factor1 = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, FT_MulFix( factor1, factor2 ) );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escSQRT:
+ {
+ CF2_F16Dot16 arg;
+
+
+ FT_TRACE4(( " sqrt\n" ));
+
+ arg = cf2_stack_popFixed( opStack );
+ if ( arg > 0 )
+ {
+ FT_Fixed root = arg;
+ FT_Fixed new_root;
+
+
+ /* 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, arg );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escDUP:
+ {
+ CF2_F16Dot16 arg;
+
+
+ FT_TRACE4(( " dup\n" ));
+
+ arg = cf2_stack_popFixed( opStack );
+
+ cf2_stack_pushFixed( opStack, arg );
+ cf2_stack_pushFixed( opStack, arg );
+ }
+ continue; /* do not clear the stack */
+
+ case cf2_escEXCH:
+ {
+ CF2_F16Dot16 arg1;
+ CF2_F16Dot16 arg2;
+
+
+ FT_TRACE4(( " exch\n" ));
+
+ arg2 = cf2_stack_popFixed( opStack );
+ arg1 = cf2_stack_popFixed( opStack );
+
+ 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(( " index\n" ));
+
+ 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;
+
+
+ if ( idx < 0 )
+ gr_idx = size - 1;
+ else if ( (CF2_UInt)idx >= size )
+ gr_idx = 0;
+ else
+ gr_idx = size - 1 - (CF2_UInt)idx;
+
+ 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(( " roll\n" ));
+
+ idx = cf2_stack_popInt( opStack );
+ count = cf2_stack_popInt( opStack );
+
+ 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:
@@ -1085,12 +1416,13 @@
haveWidth = TRUE;
if ( font->decoder->width_only )
- goto exit;
+ goto exit;
/* 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 */
@@ -1117,8 +1449,8 @@
error2 = cf2_getSeacComponent( decoder, achar, &component );
if ( error2 )
{
- lastError = error2; /* pass FreeType error through */
- goto exit;
+ lastError = error2; /* pass FreeType error through */
+ goto exit;
}
cf2_interpT2CharString( font,
&component,
@@ -1172,7 +1504,7 @@
0 );
if ( font->decoder->width_only )
- goto exit;
+ goto exit;
if ( op1 == cf2_cmdHINTMASK )
{
@@ -1231,7 +1563,7 @@
haveWidth = TRUE;
if ( font->decoder->width_only )
- goto exit;
+ goto exit;
curY += cf2_stack_popFixed( opStack );
curX += cf2_stack_popFixed( opStack );
@@ -1250,7 +1582,7 @@
haveWidth = TRUE;
if ( font->decoder->width_only )
- goto exit;
+ goto exit;
curX += cf2_stack_popFixed( opStack );
@@ -1319,7 +1651,7 @@
{
x1 = cf2_stack_getReal( opStack, index ) + curX;
- ++index;
+ index++;
}
else
x1 = curX;
@@ -1364,7 +1696,7 @@
{
y1 = cf2_stack_getReal( opStack, index ) + curY;
- ++index;
+ index++;
}
else
y1 = curY;
@@ -1392,7 +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, */
@@ -1421,7 +1753,7 @@
{
x3 = cf2_stack_getReal( opStack, index + 4 ) + x2;
- ++index;
+ index++;
}
else
x3 = x2;
@@ -1440,7 +1772,7 @@
{
y3 = cf2_stack_getReal( opStack, index + 4 ) + y2;
- ++index;
+ index++;
}
else
y3 = y2;
@@ -1463,9 +1795,12 @@
{
CF2_Int v;
+ CF2_Int byte1 = cf2_buf_readByte( charstring );
+ CF2_Int byte2 = cf2_buf_readByte( charstring );
+
- v = (FT_Short)( ( cf2_buf_readByte( charstring ) << 8 ) |
- cf2_buf_readByte( charstring ) );
+ v = (FT_Short)( ( byte1 << 8 ) |
+ byte2 );
FT_TRACE4(( " %d", v ));
@@ -1527,14 +1862,18 @@
{
CF2_Fixed v;
+ FT_UInt32 byte1 = (FT_UInt32)cf2_buf_readByte( charstring );
+ FT_UInt32 byte2 = (FT_UInt32)cf2_buf_readByte( charstring );
+ FT_UInt32 byte3 = (FT_UInt32)cf2_buf_readByte( charstring );
+ FT_UInt32 byte4 = (FT_UInt32)cf2_buf_readByte( charstring );
- v = (CF2_Fixed)
- ( ( (FT_UInt32)cf2_buf_readByte( charstring ) << 24 ) |
- ( (FT_UInt32)cf2_buf_readByte( charstring ) << 16 ) |
- ( (FT_UInt32)cf2_buf_readByte( charstring ) << 8 ) |
- (FT_UInt32)cf2_buf_readByte( charstring ) );
- FT_TRACE4(( " %.2f", v / 65536.0 ));
+ v = (CF2_Fixed)( ( byte1 << 24 ) |
+ ( byte2 << 16 ) |
+ ( byte3 << 8 ) |
+ byte4 );
+
+ FT_TRACE4(( " %.5f", v / 65536.0 ));
cf2_stack_pushFixed( opStack, v );
}
@@ -1555,6 +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 );
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 18:02:55 +0000