/* */
/* TrueType Glyph Loader (body). */
/* */
-/* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, */
-/* 2010 by */
+/* Copyright 1996-2012 */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/*************************************************************************/
/* */
- /* Composite font flags. */
+ /* Composite glyph flags. */
/* */
#define ARGS_ARE_WORDS 0x0001
#define ARGS_ARE_XY_VALUES 0x0002
/*************************************************************************/
/* */
- /* Returns the horizontal metrics in font units for a given glyph. If */
- /* `check' is true, take care of monospaced fonts by returning the */
- /* advance width maximum. */
+ /* Return the horizontal metrics in font units for a given glyph. */
/* */
FT_LOCAL_DEF( void )
TT_Get_HMetrics( TT_Face face,
FT_UInt idx,
- FT_Bool check,
FT_Short* lsb,
FT_UShort* aw )
{
( (SFNT_Service)face->sfnt )->get_metrics( face, 0, idx, lsb, aw );
- if ( check && face->postscript.isFixedPitch )
- *aw = face->horizontal.advance_Width_Max;
-
FT_TRACE5(( " advance width (font units): %d\n", *aw ));
FT_TRACE5(( " left side bearing (font units): %d\n", *lsb ));
}
/*************************************************************************/
/* */
- /* Returns the vertical metrics in font units for a given glyph. */
+ /* Return the vertical metrics in font units for a given glyph. */
/* Greg Hitchcock from Microsoft told us that if there were no `vmtx' */
/* table, typoAscender/Descender from the `OS/2' table would be used */
/* instead, and if there were no `OS/2' table, use ascender/descender */
/* apparently does: It uses the ppem value as the advance height, and */
/* sets the top side bearing to be zero. */
/* */
- /* The monospace `check' is probably not meaningful here, but we leave */
- /* it in for a consistent interface. */
- /* */
FT_LOCAL_DEF( void )
TT_Get_VMetrics( TT_Face face,
FT_UInt idx,
- FT_Bool check,
FT_Short* tsb,
FT_UShort* ah )
{
- FT_UNUSED( check );
-
if ( face->vertical_info )
( (SFNT_Service)face->sfnt )->get_metrics( face, 1, idx, tsb, ah );
TT_Get_HMetrics( face, glyph_index,
- (FT_Bool)!( loader->load_flags &
- FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ),
&left_bearing,
&advance_width );
TT_Get_VMetrics( face, glyph_index,
- (FT_Bool)!( loader->load_flags &
- FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ),
&top_bearing,
&advance_height );
if ( n_contours >= 0xFFF || p + ( n_contours + 1 ) * 2 > limit )
goto Invalid_Outline;
- prev_cont = FT_NEXT_USHORT( p );
+ prev_cont = FT_NEXT_SHORT( p );
if ( n_contours > 0 )
cont[0] = prev_cont;
+ if ( prev_cont < 0 )
+ goto Invalid_Outline;
+
for ( cont++; cont < cont_limit; cont++ )
{
- cont[0] = FT_NEXT_USHORT( p );
+ cont[0] = FT_NEXT_SHORT( p );
if ( cont[0] <= prev_cont )
{
/* unordered contours: this is invalid */
- error = TT_Err_Invalid_Table;
- goto Fail;
+ goto Invalid_Outline;
}
prev_cont = cont[0];
}
if ( error )
goto Fail;
- /* we'd better check the contours table right now */
- outline = &gloader->current.outline;
-
- for ( cont = outline->contours + 1; cont < cont_limit; cont++ )
- if ( cont[-1] >= cont[0] )
- goto Invalid_Outline;
-
/* reading the bytecode instructions */
load->glyph->control_len = 0;
load->glyph->control_data = 0;
p += n_ins;
+ outline = &gloader->current.outline;
+
/* reading the point tags */
flag = (FT_Byte*)outline->tags;
flag_limit = flag + n_points;
/* get the device-independent horizontal advance; it is scaled later */
/* by the base layer. */
- {
- FT_Pos advance = loader->linear;
-
-
- /* the flag FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH was introduced to */
- /* correctly support DynaLab fonts, which have an incorrect */
- /* `advance_Width_Max' field! It is used, to my knowledge, */
- /* exclusively in the X-TrueType font server. */
- /* */
- if ( face->postscript.isFixedPitch &&
- ( loader->load_flags & FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ) == 0 )
- advance = face->horizontal.advance_Width_Max;
-
- /* we need to return the advance in font units in linearHoriAdvance, */
- /* it will be scaled later by the base layer. */
- glyph->linearHoriAdvance = advance;
- }
+ glyph->linearHoriAdvance = loader->linear;
glyph->metrics.horiBearingX = bbox.xMin;
glyph->metrics.horiBearingY = bbox.yMax;
{
TT_Face face;
FT_Stream stream;
+ FT_Bool pedantic = FT_BOOL( load_flags & FT_LOAD_PEDANTIC );
face = (TT_Face)glyph->face;
if ( !size->cvt_ready )
{
- FT_Error error = tt_size_ready_bytecode( size );
+ FT_Error error = tt_size_ready_bytecode( size, pedantic );
+
+
if ( error )
return error;
}
for ( i = 0; i < size->cvt_size; i++ )
size->cvt[i] = FT_MulFix( face->cvt[i], size->ttmetrics.scale );
- tt_size_run_prep( size );
+ tt_size_run_prep( size, pedantic );
}
/* see whether the cvt program has disabled hinting */
glyph->linearHoriAdvance = loader.linear;
glyph->linearVertAdvance = loader.top_bearing + loader.bbox.yMax -
loader.vadvance;
- if ( face->postscript.isFixedPitch &&
- ( load_flags & FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ) == 0 )
- glyph->linearHoriAdvance = face->horizontal.advance_Width_Max;
}
return TT_Err_Ok;
projects / framework / graphics / freetype.git / blobdiff