AuroraMiddleware/freetype
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[pcf] Revert massive unsigning.

Browse Source
This commit is contained in:
Alexei Podtelezhnikov 2018-08-08 22:17:35 -04:00
parent f60c98feaf
commit 6a97c95800
4 changed files with 94 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ChangeLog
View File

@ -1,3 +1,7 @@
2018-08-08 Alexei Podtelezhnikov <apodtele@gmail.com>
[pcf] Revert massive unsigning.
2018-08-08 Werner Lemberg <wl@gnu.org>
[smooth] Improve tracing.

12
src/pcf/pcf.h
View File

@ -57,9 +57,9 @@ FT_BEGIN_HEADER
typedef struct PCF_ParsePropertyRec_
{
FT_ULong name;
FT_Byte isString;
FT_ULong value;
FT_Long name;
FT_Byte isString;
FT_Long value;
} PCF_ParsePropertyRec, *PCF_ParseProperty;
@ -113,9 +113,9 @@ FT_BEGIN_HEADER
FT_Byte inkInside;
FT_Byte inkMetrics;
FT_Byte drawDirection;
FT_ULong fontAscent;
FT_ULong fontDescent;
FT_ULong maxOverlap;
FT_Long fontAscent;
FT_Long fontDescent;
FT_Long maxOverlap;
PCF_MetricRec minbounds;
PCF_MetricRec maxbounds;
PCF_MetricRec ink_minbounds;

12
src/pcf/pcfdrivr.c
View File

@ -441,8 +441,8 @@ THE SOFTWARE.
FT_Select_Metrics( size->face, strike_index );
size->metrics.ascender = (FT_Pos)accel->fontAscent * 64;
size->metrics.descender = -(FT_Pos)accel->fontDescent * 64;
size->metrics.ascender = accel->fontAscent * 64;
size->metrics.descender = -accel->fontDescent * 64;
size->metrics.max_advance = accel->maxbounds.characterWidth * 64;
return FT_Err_Ok;
@ -470,8 +470,8 @@ THE SOFTWARE.
break;
case FT_SIZE_REQUEST_TYPE_REAL_DIM:
if ( (FT_ULong)height == ( face->accel.fontAscent +
face->accel.fontDescent ) )
if ( height == ( face->accel.fontAscent +
face->accel.fontDescent ) )
error = FT_Err_Ok;
break;
@ -560,8 +560,8 @@ THE SOFTWARE.
slot->metrics.height = (FT_Pos)( bitmap->rows * 64 );
ft_synthesize_vertical_metrics( &slot->metrics,
(FT_Pos)( face->accel.fontAscent +
face->accel.fontDescent ) * 64 );
( face->accel.fontAscent +
face->accel.fontDescent ) * 64 );
if ( load_flags & FT_LOAD_BITMAP_METRICS_ONLY )
goto Exit;

120
src/pcf/pcfread.c
View File

@ -239,7 +239,7 @@ THE SOFTWARE.
{
for ( j = 0; j < sizeof ( tableNames ) / sizeof ( tableNames[0] );
j++ )
if ( tables[i].type == ( 1U << j ) )
if ( tables[i].type == (FT_UInt)( 1 << j ) )
name = tableNames[j];
FT_TRACE4(( " %d: type=%s, format=0x%X,"
@ -433,9 +433,9 @@ THE SOFTWARE.
#define FT_STRUCTURE PCF_ParsePropertyRec
FT_FRAME_START( PCF_PROPERTY_SIZE ),
FT_FRAME_ULONG_LE( name ),
FT_FRAME_BYTE ( isString ),
FT_FRAME_ULONG_LE( value ),
FT_FRAME_LONG_LE( name ),
FT_FRAME_BYTE ( isString ),
FT_FRAME_LONG_LE( value ),
FT_FRAME_END
};
@ -447,9 +447,9 @@ THE SOFTWARE.
#define FT_STRUCTURE PCF_ParsePropertyRec
FT_FRAME_START( PCF_PROPERTY_SIZE ),
FT_FRAME_ULONG( name ),
FT_FRAME_BYTE ( isString ),
FT_FRAME_ULONG( value ),
FT_FRAME_LONG( name ),
FT_FRAME_BYTE( isString ),
FT_FRAME_LONG( value ),
FT_FRAME_END
};
@ -623,10 +623,11 @@ THE SOFTWARE.
FT_TRACE4(( "\n" ));
for ( i = 0; i < nprops; i++ )
{
FT_ULong name_offset = props[i].name;
FT_Long name_offset = props[i].name;
if ( name_offset > string_size )
if ( ( name_offset < 0 ) ||
( (FT_ULong)name_offset > string_size ) )
{
error = FT_THROW( Invalid_Offset );
goto Bail;
@ -641,10 +642,11 @@ THE SOFTWARE.
if ( props[i].isString )
{
FT_ULong value_offset = props[i].value;
FT_Long value_offset = props[i].value;
if ( value_offset > string_size )
if ( ( value_offset < 0 ) ||
( (FT_ULong)value_offset > string_size ) )
{
error = FT_THROW( Invalid_Offset );
goto Bail;
@ -657,7 +659,7 @@ THE SOFTWARE.
}
else
{
properties[i].value.ul = props[i].value;
properties[i].value.l = props[i].value;
FT_TRACE4(( " %d\n", properties[i].value.l ));
}
@ -1137,9 +1139,9 @@ THE SOFTWARE.
FT_FRAME_BYTE ( inkMetrics ),
FT_FRAME_BYTE ( drawDirection ),
FT_FRAME_SKIP_BYTES( 1 ),
FT_FRAME_ULONG_LE ( fontAscent ),
FT_FRAME_ULONG_LE ( fontDescent ),
FT_FRAME_ULONG_LE ( maxOverlap ),
FT_FRAME_LONG_LE ( fontAscent ),
FT_FRAME_LONG_LE ( fontDescent ),
FT_FRAME_LONG_LE ( maxOverlap ),
FT_FRAME_END
};
@ -1159,9 +1161,9 @@ THE SOFTWARE.
FT_FRAME_BYTE ( inkMetrics ),
FT_FRAME_BYTE ( drawDirection ),
FT_FRAME_SKIP_BYTES( 1 ),
FT_FRAME_ULONG ( fontAscent ),
FT_FRAME_ULONG ( fontDescent ),
FT_FRAME_ULONG ( maxOverlap ),
FT_FRAME_LONG ( fontAscent ),
FT_FRAME_LONG ( fontDescent ),
FT_FRAME_LONG ( maxOverlap ),
FT_FRAME_END
};
@ -1215,7 +1217,7 @@ THE SOFTWARE.
FT_TRACE5(( " noOverlap=%s, constantMetrics=%s,"
" terminalFont=%s, constantWidth=%s\n"
" inkInside=%s, inkMetrics=%s, drawDirection=%s\n"
" fontAscent=%lu, fontDescent=%lu, maxOverlap=%lu\n",
" fontAscent=%ld, fontDescent=%ld, maxOverlap=%ld\n",
accel->noOverlap ? "yes" : "no",
accel->constantMetrics ? "yes" : "no",
accel->terminalFont ? "yes" : "no",
@ -1227,17 +1229,17 @@ THE SOFTWARE.
accel->fontDescent,
accel->maxOverlap ));
/* sanity checks so that combined height can fit short */
if ( accel->fontAscent > 0x3FFFU )
/* sanity checks */
if ( FT_ABS( accel->fontAscent ) > 0x7FFF )
{
accel->fontAscent = 0x3FFFU;
FT_TRACE0(( "pfc_get_accel: clamping font ascent to value %u\n",
accel->fontAscent = accel->fontAscent < 0 ? -0x7FFF : 0x7FFF;
FT_TRACE0(( "pfc_get_accel: clamping font ascent to value %d\n",
accel->fontAscent ));
}
if ( accel->fontDescent > 0x3FFFU )
if ( FT_ABS( accel->fontDescent ) > 0x7FFF )
{
accel->fontDescent = 0x3FFFU;
FT_TRACE0(( "pfc_get_accel: clamping font descent to value %u\n",
accel->fontDescent = accel->fontDescent < 0 ? -0x7FFF : 0x7FFF;
FT_TRACE0(( "pfc_get_accel: clamping font descent to value %d\n",
accel->fontDescent ));
}
@ -1563,78 +1565,112 @@ THE SOFTWARE.
bsize->height = face->accel.maxbounds.ascent << 6;
#endif
bsize->height = (FT_Short)( face->accel.fontAscent +
face->accel.fontDescent );
#ifdef FT_DEBUG_LEVEL_TRACE
if ( face->accel.fontAscent + face->accel.fontDescent < 0 )
FT_TRACE0(( "pcf_load_font: negative height\n" ));
#endif
if ( FT_ABS( face->accel.fontAscent +
face->accel.fontDescent ) > 0x7FFF )
{
bsize->height = 0x7FFF;
FT_TRACE0(( "pcf_load_font: clamping height to value %d\n",
bsize->height ));
}
else
bsize->height = FT_ABS( (FT_Short)( face->accel.fontAscent +
face->accel.fontDescent ) );
prop = pcf_find_property( face, "AVERAGE_WIDTH" );
if ( prop )
{
if ( prop->value.ul > 0x7FFFUL * 10 - 5 )
#ifdef FT_DEBUG_LEVEL_TRACE
if ( prop->value.l < 0 )
FT_TRACE0(( "pcf_load_font: negative average width\n" ));
#endif
if ( ( FT_ABS( prop->value.l ) > 0x7FFFL * 10 - 5 ) )
{
bsize->width = 0x7FFF;
FT_TRACE0(( "pcf_load_font: clamping average width to value %hd\n",
FT_TRACE0(( "pcf_load_font: clamping average width to value %d\n",
bsize->width ));
}
else
bsize->width = (FT_Short)( ( prop->value.ul + 5 ) / 10 );
bsize->width = FT_ABS( (FT_Short)( ( prop->value.l + 5 ) / 10 ) );
}
else
{
/* this is a heuristical value */
bsize->width = bsize->height - bsize->height / 3;
bsize->width = (FT_Short)FT_MulDiv( bsize->height, 2, 3 );
}
prop = pcf_find_property( face, "POINT_SIZE" );
if ( prop )
{
#ifdef FT_DEBUG_LEVEL_TRACE
if ( prop->value.l < 0 )
FT_TRACE0(( "pcf_load_font: negative point size\n" ));
#endif
/* convert from 722.7 decipoints to 72 points per inch */
if ( prop->value.ul > 0x504C2UL ) /* 0x7FFF * 72270/7200 */
if ( FT_ABS( prop->value.l ) > 0x504C2L ) /* 0x7FFF * 72270/7200 */
{
bsize->size = 0x7FFF;
FT_TRACE0(( "pcf_load_font: clamping point size to value %d\n",
bsize->size ));
}
else
bsize->size = FT_MulDiv( prop->value.l, 64 * 7200, 72270L );
bsize->size = FT_MulDiv( FT_ABS( prop->value.l ),
64 * 7200,
72270L );
}
prop = pcf_find_property( face, "PIXEL_SIZE" );
if ( prop )
{
if ( prop->value.ul > 0x7FFFU )
#ifdef FT_DEBUG_LEVEL_TRACE
if ( prop->value.l < 0 )
FT_TRACE0(( "pcf_load_font: negative pixel size\n" ));
#endif
if ( FT_ABS( prop->value.l ) > 0x7FFF )
{
bsize->y_ppem = 0x7FFF * 64;
bsize->y_ppem = 0x7FFF << 6;
FT_TRACE0(( "pcf_load_font: clamping pixel size to value %d\n",
bsize->y_ppem ));
}
else
bsize->y_ppem = (FT_Pos)prop->value.ul * 64;
bsize->y_ppem = FT_ABS( (FT_Short)prop->value.l ) << 6;
}
prop = pcf_find_property( face, "RESOLUTION_X" );
if ( prop )
{
if ( prop->value.ul > 0x7FFFU )
#ifdef FT_DEBUG_LEVEL_TRACE
if ( prop->value.l < 0 )
FT_TRACE0(( "pcf_load_font: negative X resolution\n" ));
#endif
if ( FT_ABS( prop->value.l ) > 0x7FFF )
{
resolution_x = 0x7FFF;
FT_TRACE0(( "pcf_load_font: clamping X resolution to value %hd\n",
FT_TRACE0(( "pcf_load_font: clamping X resolution to value %d\n",
resolution_x ));
}
else
resolution_x = (FT_Short)prop->value.ul;
resolution_x = FT_ABS( (FT_Short)prop->value.l );
}
prop = pcf_find_property( face, "RESOLUTION_Y" );
if ( prop )
{
if ( prop->value.ul > 0x7FFFU )
#ifdef FT_DEBUG_LEVEL_TRACE
if ( prop->value.l < 0 )
FT_TRACE0(( "pcf_load_font: negative Y resolution\n" ));
#endif
if ( FT_ABS( prop->value.l ) > 0x7FFF )
{
resolution_y = 0x7FFF;
FT_TRACE0(( "pcf_load_font: clamping Y resolution to value %d\n",
resolution_y ));
}
else
resolution_y = (FT_Short)prop->value.ul;
resolution_y = FT_ABS( (FT_Short)prop->value.l );
}
if ( bsize->y_ppem == 0 )