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* src/truetype/ttxgvar.c (ft_var_load_avar): Do free arrays in case 

of error -- `avar' is optional so we can't rely on tt_done_blend
being called automatically.
This commit is contained in:
Werner Lemberg 2004-05-11 06:45:27 +00:00
parent 19b42a5c3a
commit ee6e92c28e
2 changed files with 23 additions and 7 deletions
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6
ChangeLog
View File

@ -1,3 +1,9 @@
2004-05-10 George Williams <gww@silcom.com>
* src/truetype/ttxgvar.c (ft_var_load_avar): Do free arrays in case
of error -- `avar' is optional so we can't rely on tt_done_blend
being called automatically.
2004-05-09 George Williams <gww@silcom.com> 2004-05-09 George Williams <gww@silcom.com>
* src/truetype/ttxgvar.c (ft_var_load_avar, ft_var_load_gvar): Fix * src/truetype/ttxgvar.c (ft_var_load_avar, ft_var_load_gvar): Fix

24
src/truetype/ttgxvar.c
View File

@ -304,7 +304,17 @@
{ {
segment->pairCount = FT_GET_USHORT(); segment->pairCount = FT_GET_USHORT();
if ( FT_NEW_ARRAY( segment->correspondence, segment->pairCount ) ) if ( FT_NEW_ARRAY( segment->correspondence, segment->pairCount ) )
{
/* Failure. Free everything we have done so far. We must do */
/* it right now since loading the `avar' table is optional. */
for ( j = i - 1; j >= 0; --j )
FT_FREE( blend->avar_segment[j].correspondence );
FT_FREE( blend->avar_segment );
blend->avar_segment = NULL;
goto Exit; goto Exit;
}
for ( j = 0; j < segment->pairCount; ++j ) for ( j = 0; j < segment->pairCount; ++j )
{ {
@ -387,7 +397,7 @@
blend->tuplecount = gvar_head.globalCoordCount; blend->tuplecount = gvar_head.globalCoordCount;
blend->gv_glyphcnt = gvar_head.glyphCount; blend->gv_glyphcnt = gvar_head.glyphCount;
offsetToData = gvar_start + gvar_head.offsetToData; offsetToData = gvar_start + gvar_head.offsetToData;
if ( gvar_head.version != 0x00010000L || if ( gvar_head.version != 0x00010000L ||
gvar_head.axisCount != blend->mmvar->num_axis ) gvar_head.axisCount != blend->mmvar->num_axis )
{ {
@ -403,7 +413,7 @@
/* long offsets (one more offset than glyphs, to mark size of last) */ /* long offsets (one more offset than glyphs, to mark size of last) */
if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 4L ) ) if ( FT_FRAME_ENTER( ( blend->gv_glyphcnt + 1 ) * 4L ) )
goto Exit; goto Exit;
for ( i = 0; i <= blend->gv_glyphcnt; ++i ) for ( i = 0; i <= blend->gv_glyphcnt; ++i )
blend->glyphoffsets[i] = offsetToData + FT_GET_LONG(); blend->glyphoffsets[i] = offsetToData + FT_GET_LONG();
@ -431,7 +441,7 @@
if ( FT_STREAM_SEEK( gvar_start + gvar_head.offsetToCoord ) || if ( FT_STREAM_SEEK( gvar_start + gvar_head.offsetToCoord ) ||
FT_FRAME_ENTER( blend->tuplecount * gvar_head.axisCount * 2L ) ) FT_FRAME_ENTER( blend->tuplecount * gvar_head.axisCount * 2L ) )
goto Exit; goto Exit;
for ( i = 0; i < blend->tuplecount; ++i ) for ( i = 0; i < blend->tuplecount; ++i )
for ( j = 0 ; j < gvar_head.axisCount; ++j ) for ( j = 0 ; j < gvar_head.axisCount; ++j )
blend->tuplecoords[i * gvar_head.axisCount + j] = blend->tuplecoords[i * gvar_head.axisCount + j] =
@ -482,7 +492,7 @@
FT_UInt i; FT_UInt i;
FT_Fixed apply; FT_Fixed apply;
FT_Fixed temp; FT_Fixed temp;
apply = 0x10000L; apply = 0x10000L;
for ( i = 0; i < blend->num_axis; ++i ) for ( i = 0; i < blend->num_axis; ++i )
@ -515,7 +525,7 @@
{ {
apply = 0; apply = 0;
break; break;
} }
else if ( blend->normalizedcoords[i] < tuple_coords[i] ) else if ( blend->normalizedcoords[i] < tuple_coords[i] )
{ {
@ -651,7 +661,7 @@
goto Exit; goto Exit;
fvar_start = FT_STREAM_POS( ); fvar_start = FT_STREAM_POS( );
if ( FT_STREAM_READ_FIELDS( fvar_fields, &fvar_head ) ) if ( FT_STREAM_READ_FIELDS( fvar_fields, &fvar_head ) )
goto Exit; goto Exit;
@ -1033,7 +1043,7 @@
FT_MulDiv( FT_MulDiv(
normalized[i] - av->correspondence[j - 1].fromCoord, normalized[i] - av->correspondence[j - 1].fromCoord,
0x10000L, 0x10000L,
av->correspondence[j].fromCoord - av->correspondence[j].fromCoord -
av->correspondence[j - 1].fromCoord ), av->correspondence[j - 1].fromCoord ),
av->correspondence[j].toCoord - av->correspondence[j].toCoord -
av->correspondence[j - 1].toCoord, av->correspondence[j - 1].toCoord,