diff options
Diffstat (limited to 'src/cff/cffobjs.c')
| -rw-r--r-- | src/cff/cffobjs.c | 108 |
1 files changed, 63 insertions, 45 deletions
diff --git a/src/cff/cffobjs.c b/src/cff/cffobjs.c index cd38676..6ad0e50 100644 --- a/src/cff/cffobjs.c +++ b/src/cff/cffobjs.c @@ -4,7 +4,7 @@ /* */ /* OpenType objects manager (body). */ /* */ -/* Copyright 1996-2011 by */ +/* Copyright 1996-2012 by */ /* David Turner, Robert Wilhelm, and Werner Lemberg. */ /* */ /* This file is part of the FreeType project, and may only be used, */ @@ -403,7 +403,7 @@ FT_Int32 idx = 0; FT_Int32 length = strlen( name ) + 1; FT_Bool continue_search = 1; - + while ( continue_search ) { @@ -494,13 +494,19 @@ sfnt = (SFNT_Service)FT_Get_Module_Interface( library, "sfnt" ); if ( !sfnt ) - goto Bad_Format; + { + FT_ERROR(( "cff_face_init: cannot access `sfnt' module\n" )); + error = CFF_Err_Missing_Module; + goto Exit; + } FT_FACE_FIND_GLOBAL_SERVICE( face, psnames, POSTSCRIPT_CMAPS ); pshinter = (PSHinter_Service)FT_Get_Module_Interface( library, "pshinter" ); + FT_TRACE2(( "CFF driver\n" )); + /* create input stream from resource */ if ( FT_STREAM_SEEK( 0 ) ) goto Exit; @@ -511,8 +517,9 @@ { if ( face->format_tag != TTAG_OTTO ) /* `OTTO'; OpenType/CFF font */ { - FT_TRACE2(( "[not a valid OpenType/CFF font]\n" )); - goto Bad_Format; + FT_TRACE2(( " not an OpenType/CFF font\n" )); + error = CFF_Err_Unknown_File_Format; + goto Exit; } /* if we are performing a simple font format check, exit immediately */ @@ -604,10 +611,29 @@ " cannot open CFF & CEF fonts\n" " " " without the `PSNames' module\n" )); - goto Bad_Format; + error = CFF_Err_Missing_Module; + goto Exit; } - if ( !dict->units_per_em ) +#ifdef FT_DEBUG_LEVEL_TRACE + { + FT_UInt idx; + FT_String* s; + + + FT_TRACE4(( "SIDs\n" )); + + /* dump string index, including default strings for convenience */ + for ( idx = 0; idx < cff->num_strings + 390; idx++ ) + { + s = cff_index_get_sid_string( cff, idx ); + if ( s ) + FT_TRACE4((" %5d %s\n", idx, s )); + } + } +#endif /* FT_DEBUG_LEVEL_TRACE */ + + if ( !dict->has_font_matrix ) dict->units_per_em = pure_cff ? 1000 : face->root.units_per_EM; /* Normalize the font matrix so that `matrix->xx' is 1; the */ @@ -652,26 +678,32 @@ FT_Fixed temp; - if ( sub->units_per_em ) + if ( sub->has_font_matrix ) { FT_Long scaling; - if ( top->units_per_em > 1 && sub->units_per_em > 1 ) - scaling = FT_MIN( top->units_per_em, sub->units_per_em ); - else - scaling = 1; - - FT_Matrix_Multiply_Scaled( &top->font_matrix, - &sub->font_matrix, - scaling ); - FT_Vector_Transform_Scaled( &sub->font_offset, - &top->font_matrix, - scaling ); - - sub->units_per_em = FT_MulDiv( sub->units_per_em, - top->units_per_em, - scaling ); + /* if we have a top-level matrix, */ + /* concatenate the subfont matrix */ + + if ( top->has_font_matrix ) + { + if ( top->units_per_em > 1 && sub->units_per_em > 1 ) + scaling = FT_MIN( top->units_per_em, sub->units_per_em ); + else + scaling = 1; + + FT_Matrix_Multiply_Scaled( &top->font_matrix, + &sub->font_matrix, + scaling ); + FT_Vector_Transform_Scaled( &sub->font_offset, + &top->font_matrix, + scaling ); + + sub->units_per_em = FT_MulDiv( sub->units_per_em, + top->units_per_em, + scaling ); + } } else { @@ -690,16 +722,6 @@ { *upm = FT_DivFix( *upm, temp ); - /* if *upm is larger than 100*1000 we divide by 1000 -- */ - /* this can happen if e.g. there is no top-font FontMatrix */ - /* and the subfont FontMatrix already contains the complete */ - /* scaling for the subfont (see section 5.11 of the PLRM) */ - - /* 100 is a heuristic value */ - - if ( *upm > 100L * 1000L ) - *upm = ( *upm + 500 ) / 1000; - matrix->xx = FT_DivFix( matrix->xx, temp ); matrix->yx = FT_DivFix( matrix->yx, temp ); matrix->xy = FT_DivFix( matrix->xy, temp ); @@ -758,7 +780,7 @@ char* family_name = NULL; - remove_subset_prefix( cffface->family_name ); + remove_subset_prefix( cffface->family_name ); if ( dict->family_name ) { @@ -805,7 +827,7 @@ style_name = cff_strcpy( memory, fullp ); /* remove the style part from the family name (if present) */ - remove_style( cffface->family_name, style_name ); + remove_style( cffface->family_name, style_name ); } break; } @@ -833,22 +855,22 @@ /* */ /* Compute face flags. */ /* */ - flags = (FT_UInt32)( FT_FACE_FLAG_SCALABLE | /* scalable outlines */ - FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ - FT_FACE_FLAG_HINTER ); /* has native hinter */ + flags = FT_FACE_FLAG_SCALABLE | /* scalable outlines */ + FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ + FT_FACE_FLAG_HINTER; /* has native hinter */ if ( sfnt_format ) - flags |= (FT_UInt32)FT_FACE_FLAG_SFNT; + flags |= FT_FACE_FLAG_SFNT; /* fixed width font? */ if ( dict->is_fixed_pitch ) - flags |= (FT_UInt32)FT_FACE_FLAG_FIXED_WIDTH; + flags |= FT_FACE_FLAG_FIXED_WIDTH; /* XXX: WE DO NOT SUPPORT KERNING METRICS IN THE GPOS TABLE FOR NOW */ #if 0 /* kerning available? */ if ( face->kern_pairs ) - flags |= (FT_UInt32)FT_FACE_FLAG_KERNING; + flags |= FT_FACE_FLAG_KERNING; #endif cffface->face_flags = flags; @@ -1000,10 +1022,6 @@ Exit: return error; - - Bad_Format: - error = CFF_Err_Unknown_File_Format; - goto Exit; } |