ARGS_ARE_WORDS ARGS_ARE_XY_VALUES compute_glyph_metrics FT_COMPONENT IS_HINTED load_truetype_glyph MORE_COMPONENTS OVERLAP_COMPOUND ROUND_XY_TO_GRID SCALED_COMPONENT_OFFSET translate_array TT_Access_Glyph_Frame TT_Forget_Glyph_Frame TT_Get_HMetrics tt_get_metrics TT_Get_VMetrics TT_Hint_Glyph TT_Init_Glyph_Loading TT_Load_Composite_Glyph TT_Load_Glyph TT_Load_Glyph_Header TT_Load_Simple_Glyph tt_loader_init TT_LOADER_SET_PP tt_prepare_zone TT_Process_Composite_Component TT_Process_Composite_Glyph TT_Process_Simple_Glyph UNSCALED_COMPONENT_OFFSET USE_MY_METRICS WE_HAVE_A_2X2 WE_HAVE_A_SCALE WE_HAVE_AN_XY_SCALE WE_HAVE_INSTR

TT_Load_Composite_Glyph ( TT_Loader  loader ) Definition at line 575 of file ttgload.c. Referenced by TT_Init_Glyph_Loading(). { FT_Error error; FT_Byte* p = loader->cursor; FT_Byte* limit = loader->limit; FT_GlyphLoader gloader = loader->gloader; FT_SubGlyph subglyph; FT_UInt num_subglyphs; num_subglyphs = 0; do { FT_Fixed xx, xy, yy, yx; FT_UInt count; /* check that we can load a new subglyph */ error = FT_GlyphLoader_CheckSubGlyphs( gloader, num_subglyphs + 1 ); if ( error ) goto Fail; /* check space */ if ( p + 4 > limit ) goto Invalid_Composite; subglyph = gloader->current.subglyphs + num_subglyphs; subglyph->arg1 = subglyph->arg2 = 0; subglyph->flags = FT_NEXT_USHORT( p ); subglyph->index = FT_NEXT_USHORT( p ); /* check space */ count = 2; if ( subglyph->flags & ARGS_ARE_WORDS ) count += 2; if ( subglyph->flags & WE_HAVE_A_SCALE ) count += 2; else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) count += 4; else if ( subglyph->flags & WE_HAVE_A_2X2 ) count += 8; if ( p + count > limit ) goto Invalid_Composite; /* read arguments */ if ( subglyph->flags & ARGS_ARE_WORDS ) { subglyph->arg1 = FT_NEXT_SHORT( p ); subglyph->arg2 = FT_NEXT_SHORT( p ); } else { subglyph->arg1 = FT_NEXT_CHAR( p ); subglyph->arg2 = FT_NEXT_CHAR( p ); } /* read transform */ xx = yy = 0x10000L; xy = yx = 0; if ( subglyph->flags & WE_HAVE_A_SCALE ) { xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; yy = xx; } else if ( subglyph->flags & WE_HAVE_AN_XY_SCALE ) { xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; } else if ( subglyph->flags & WE_HAVE_A_2X2 ) { xx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; yx = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; xy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; yy = (FT_Fixed)FT_NEXT_SHORT( p ) << 2; } subglyph->transform.xx = xx; subglyph->transform.xy = xy; subglyph->transform.yx = yx; subglyph->transform.yy = yy; num_subglyphs++; } while ( subglyph->flags & MORE_COMPONENTS ); gloader->current.num_subglyphs = num_subglyphs; #ifdef TT_USE_BYTECODE_INTERPRETER { 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. */ /* */ loader->ins_pos = (FT_ULong)( FT_STREAM_POS() + p - limit ); } #endif loader->cursor = p; Fail: return error; Invalid_Composite: error = TT_Err_Invalid_Composite; goto Fail; }