diff options
Diffstat (limited to 'src/3rdparty/freetype/src/truetype/ttgload.c')
| -rw-r--r-- | src/3rdparty/freetype/src/truetype/ttgload.c | 120 |
1 files changed, 83 insertions, 37 deletions
diff --git a/src/3rdparty/freetype/src/truetype/ttgload.c b/src/3rdparty/freetype/src/truetype/ttgload.c index f6d6f9fcd..06e9ccd1d 100644 --- a/src/3rdparty/freetype/src/truetype/ttgload.c +++ b/src/3rdparty/freetype/src/truetype/ttgload.c @@ -69,12 +69,12 @@ /* `check' is true, take care of monospaced fonts by returning the */ /* advance width maximum. */ /* */ - static void - Get_HMetrics( TT_Face face, - FT_UInt idx, - FT_Bool check, - FT_Short* lsb, - FT_UShort* aw ) + 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 ); @@ -96,12 +96,12 @@ /* The monospace `check' is probably not meaningful here, but we leave */ /* it in for a consistent interface. */ /* */ - static void - Get_VMetrics( TT_Face face, - FT_UInt idx, - FT_Bool check, - FT_Short* tsb, - FT_UShort* ah ) + 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 ); @@ -382,8 +382,8 @@ for ( ; vec < vec_limit; vec++, flag++ ) { - FT_Pos y = 0; - FT_Byte f = *flag; + FT_Pos y = 0; + FT_Byte f = *flag; if ( f & 2 ) @@ -405,7 +405,8 @@ x += y; vec->x = x; - *flag = f & ~( 2 | 16 ); + /* the cast is for stupid compilers */ + *flag = (FT_Byte)( f & ~( 2 | 16 ) ); } /* reading the Y coordinates */ @@ -417,8 +418,8 @@ for ( ; vec < vec_limit; vec++, flag++ ) { - FT_Pos y = 0; - FT_Byte f = *flag; + FT_Pos y = 0; + FT_Byte f = *flag; if ( f & 4 ) @@ -440,7 +441,8 @@ x += y; vec->y = x; - *flag = f & FT_CURVE_TAG_ON; + /* the cast is for stupid compilers */ + *flag = (FT_Byte)( f & FT_CURVE_TAG_ON ); } outline->n_points = (FT_UShort)n_points; @@ -557,10 +559,10 @@ FT_Stream stream = loader->stream; - /* we must undo the FT_FRAME_ENTER in order to point to the */ - /* composite instructions, if we find some. */ - /* we will process them later... */ - /* */ + /* we must undo the FT_FRAME_ENTER in order to point */ + /* to the composite instructions, if we find some. */ + /* We will process them later. */ + /* */ loader->ins_pos = (FT_ULong)( FT_STREAM_POS() + p - limit ); } @@ -1143,16 +1145,16 @@ FT_UShort advance_width = 0, advance_height = 0; - Get_HMetrics( face, glyph_index, - (FT_Bool)!( loader->load_flags & - FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ), - &left_bearing, - &advance_width ); - Get_VMetrics( face, glyph_index, - (FT_Bool)!( loader->load_flags & - FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH ), - &top_bearing, - &advance_height ); + 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 ); #ifdef FT_CONFIG_OPTION_INCREMENTAL @@ -1243,6 +1245,13 @@ if ( loader->byte_len > 0 ) { + if ( !loader->glyf_offset ) + { + FT_TRACE2(( "no `glyf' table but non-zero `loca' entry!\n" )); + error = TT_Err_Invalid_Table; + goto Exit; + } + error = face->access_glyph_frame( loader, glyph_index, loader->glyf_offset + offset, loader->byte_len ); @@ -1668,8 +1677,8 @@ } /* adjust advance width to the value contained in the hdmx table */ - if ( !face->postscript.isFixedPitch && - IS_HINTED( loader->load_flags ) ) + if ( !face->postscript.isFixedPitch && + IS_HINTED( loader->load_flags ) ) { FT_Byte* widthp; @@ -1838,12 +1847,15 @@ FT_Error error = face->goto_table( face, TTAG_glyf, stream, 0 ); - if ( error ) + if ( error == TT_Err_Table_Missing ) + loader->glyf_offset = 0; + else if ( error ) { FT_ERROR(( "TT_Load_Glyph: could not access glyph table\n" )); return error; } - loader->glyf_offset = FT_STREAM_POS(); + else + loader->glyf_offset = FT_STREAM_POS(); } /* get face's glyph loader */ @@ -1855,7 +1867,7 @@ loader->gloader = gloader; } - loader->load_flags = load_flags; + loader->load_flags = load_flags; loader->face = (FT_Face)face; loader->size = (FT_Size)size; @@ -1958,6 +1970,40 @@ FT_Outline_Translate( &glyph->outline, -loader.pp1.x, 0 ); } +#ifdef TT_USE_BYTECODE_INTERPRETER + + if ( IS_HINTED( load_flags ) ) + { + if ( loader.exec->GS.scan_control ) + { + /* convert scan conversion mode to FT_OUTLINE_XXX flags */ + switch ( loader.exec->GS.scan_type ) + { + case 0: /* simple drop-outs including stubs */ + glyph->outline.flags |= FT_OUTLINE_INCLUDE_STUBS; + break; + case 1: /* simple drop-outs excluding stubs */ + /* nothing; it's the default rendering mode */ + break; + case 4: /* smart drop-outs including stubs */ + glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS | + FT_OUTLINE_INCLUDE_STUBS; + break; + case 5: /* smart drop-outs excluding stubs */ + glyph->outline.flags |= FT_OUTLINE_SMART_DROPOUTS; + break; + + default: /* no drop-out control */ + glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; + break; + } + } + else + glyph->outline.flags |= FT_OUTLINE_IGNORE_DROPOUTS; + } + +#endif /* TT_USE_BYTECODE_INTERPRETER */ + compute_glyph_metrics( &loader, glyph_index ); } |