X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fopen-type-font.cc;h=50c89a40650c67e164f61b5d68f9fb1314bb181d;hb=941dff9d2a67080e0dd8474f1e70f0c72ace6424;hp=ddd6b7c80e1bda6f9c02cccae821ec3ba5af5130;hpb=df2bf3ee4c32d569f346d84fb5b42cab676a74d1;p=lilypond.git diff --git a/lily/open-type-font.cc b/lily/open-type-font.cc index ddd6b7c80e..50c89a4065 100644 --- a/lily/open-type-font.cc +++ b/lily/open-type-font.cc @@ -1,17 +1,32 @@ /* - open-type-font.cc -- implement Open_type_font + This file is part of LilyPond, the GNU music typesetter. - source file of the GNU LilyPond music typesetter + Copyright (C) 2004--2011 Han-Wen Nienhuys - (c) 2004--2005 Han-Wen Nienhuys + LilyPond is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + LilyPond is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with LilyPond. If not, see . */ #include "open-type-font.hh" +#include + +using namespace std; + #include -#include #include "dimensions.hh" +#include "international.hh" #include "modified-font-metric.hh" #include "warn.hh" @@ -21,30 +36,29 @@ load_table (char const *tag_str, FT_Face face, FT_ULong *length) *length = 0; FT_ULong tag = FT_MAKE_TAG (tag_str[0], tag_str[1], tag_str[2], tag_str[3]); - int error_code = FT_Load_Sfnt_Table (face, tag, 0, NULL, length); + FT_Error error_code = FT_Load_Sfnt_Table (face, tag, 0, NULL, length); if (!error_code) { FT_Byte *buffer = (FT_Byte *) malloc (*length); if (buffer == NULL) - error (_f ("can't allocate %d bytes", *length)); + error (_f ("cannot allocate %lu bytes", *length)); error_code = FT_Load_Sfnt_Table (face, tag, 0, buffer, length); if (error_code) - error (_f ("can't load font table: %s", tag_str)); + error (_f ("cannot load font table: %s", tag_str)); return buffer; } else - { - programming_error ("Cannot find OpenType table."); - } - + programming_error (_f ("FreeType error: %s", + freetype_error_string (error_code).c_str () + )); + return 0; } - -String -Open_type_font::get_otf_table (String tag) const +string +Open_type_font::get_otf_table (string tag) const { return ::get_otf_table (face_, tag); } @@ -58,64 +72,54 @@ load_scheme_table (char const *tag_str, FT_Face face) SCM tab = SCM_EOL; if (buffer) { - String contents ((Byte const *)buffer, length); + string contents ((char const*)buffer, length); contents = "(quote (" + contents + "))"; - tab = scm_c_eval_string (contents.to_str0 ()); + tab = scm_c_eval_string (contents.c_str ()); free (buffer); } return tab; } -Index_to_charcode_map -make_index_to_charcode_map (FT_Face face) -{ - Index_to_charcode_map m; - FT_ULong charcode; - FT_UInt gindex; - - for (charcode = FT_Get_First_Char (face, &gindex); gindex != 0; - charcode = FT_Get_Next_Char (face, charcode, &gindex)) - m[gindex] = charcode; - return m; -} Open_type_font::~Open_type_font () { FT_Done_Face (face_); } - /* UGH fix naming */ -String -get_otf_table (FT_Face face, String tag) +string +get_otf_table (FT_Face face, string tag) { FT_ULong len; - FT_Byte *tab = load_table (tag.to_str0 (), face, &len); + FT_Byte *tab = load_table (tag.c_str (), face, &len); + string ret ((char const*) tab, len); + free (tab); - return String (tab, len); + return ret; } FT_Face -open_ft_face (String str) +open_ft_face (string str, FT_Long idx) { FT_Face face; - int error_code = FT_New_Face (freetype2_library, str.to_str0 (), 0, &face); + FT_Error error_code = FT_New_Face (freetype2_library, str.c_str (), idx, &face); if (error_code == FT_Err_Unknown_File_Format) - error (_f ("unsupported font format: %s", str.to_str0 ())); + error (_f ("unsupported font format: %s", str.c_str ())); else if (error_code) - error (_f ("unknown error: %d reading font file: %s", error_code, - str.to_str0 ())); + error (_f ("error reading font file %s: %s", + str.c_str (), + freetype_error_string (error_code).c_str ())); return face; } SCM -Open_type_font::make_otf (String str) +Open_type_font::make_otf (string str) { - FT_Face face = open_ft_face (str); + FT_Face face = open_ft_face (str, 0 /* index */); Open_type_font *otf = new Open_type_font (face); return otf->self_scm (); @@ -127,11 +131,14 @@ Open_type_font::Open_type_font (FT_Face face) lily_character_table_ = SCM_EOL; lily_global_table_ = SCM_EOL; lily_subfonts_ = SCM_EOL; + lily_index_to_bbox_table_ = SCM_EOL; lily_character_table_ = alist_to_hashq (load_scheme_table ("LILC", face_)); lily_global_table_ = alist_to_hashq (load_scheme_table ("LILY", face_)); lily_subfonts_ = load_scheme_table ("LILF", face_); index_to_charcode_map_ = make_index_to_charcode_map (face_); + + lily_index_to_bbox_table_ = scm_c_make_hash_table (257); } void @@ -140,12 +147,13 @@ Open_type_font::derived_mark () const scm_gc_mark (lily_character_table_); scm_gc_mark (lily_global_table_); scm_gc_mark (lily_subfonts_); + scm_gc_mark (lily_index_to_bbox_table_); } Offset -Open_type_font::attachment_point (String glyph_name) const +Open_type_font::attachment_point (string glyph_name) const { - SCM sym = ly_symbol2scm (glyph_name.to_str0 ()); + SCM sym = ly_symbol2scm (glyph_name.c_str ()); SCM entry = scm_hashq_ref (lily_character_table_, sym, SCM_BOOL_F); Offset o; @@ -159,15 +167,26 @@ Open_type_font::attachment_point (String glyph_name) const } Box -Open_type_font::get_indexed_char (int signed_idx) const +Open_type_font::get_indexed_char_dimensions (size_t signed_idx) const { + if (SCM_HASHTABLE_P (lily_index_to_bbox_table_)) + { + SCM box = scm_hashq_ref (lily_index_to_bbox_table_, + scm_from_unsigned_integer (signed_idx), SCM_BOOL_F); + Box *box_ptr = Box::unsmob (box); + if (box_ptr) + return *box_ptr; + } + if (SCM_HASHTABLE_P (lily_character_table_)) { - const int len = 256; + const size_t len = 256; char name[len]; - int code = FT_Get_Glyph_Name (face_, signed_idx, name, len); + FT_Error code = FT_Get_Glyph_Name (face_, FT_UInt (signed_idx), + name, FT_UInt (len)); if (code) - warning (_f ("FT_Get_Glyph_Name() returned error: %d", code)); + warning (_f ("FT_Get_Glyph_Name () Freetype error: %s", + freetype_error_string (code))); SCM sym = ly_symbol2scm (name); SCM alist = scm_hashq_ref (lily_character_table_, sym, SCM_BOOL_F); @@ -187,44 +206,56 @@ Open_type_font::get_indexed_char (int signed_idx) const bbox = scm_cdr (bbox); b.scale (point_constant); + + scm_hashq_set_x (lily_index_to_bbox_table_, + scm_from_unsigned_integer (signed_idx), + b.smobbed_copy ()); return b; } } - FT_UInt idx = signed_idx; - FT_Load_Glyph (face_, - idx, - FT_LOAD_NO_SCALE); + FT_UInt idx = FT_UInt (signed_idx); + FT_Load_Glyph (face_, idx, FT_LOAD_NO_SCALE); FT_Glyph_Metrics m = face_->glyph->metrics; - int hb = m.horiBearingX; - int vb = m.horiBearingY; - Box b (Interval (-hb, m.width - hb), - Interval (-vb, m.height - vb)); + FT_Pos hb = m.horiBearingX; + FT_Pos vb = m.horiBearingY; + Box b (Interval (Real (-hb), Real (m.width - hb)), + Interval (Real (-vb), Real (m.height - vb))); b.scale (design_size () / Real (face_->units_per_EM)); return b; } -int -Open_type_font::name_to_index (String nm) const +size_t +Open_type_font::name_to_index (string nm) const { - char *nm_str = (char *) nm.to_str0 (); - if (int idx = FT_Get_Name_Index (face_, nm_str)) - return idx; - return -1; + char *nm_str = (char *) nm.c_str (); + if (FT_UInt idx = FT_Get_Name_Index (face_, nm_str)) + return (size_t) idx; + + return (size_t) -1; } -unsigned -Open_type_font::index_to_charcode (int i) const +size_t +Open_type_font::index_to_charcode (size_t i) const { - return ((Open_type_font *) this)->index_to_charcode_map_[i]; + map::const_iterator iter; + iter = index_to_charcode_map_.find (FT_UInt (i)); + + if (iter != index_to_charcode_map_.end ()) + return (size_t) iter->second; + else + { + programming_error ("Invalid index for character"); + return 0; + } } -int +size_t Open_type_font::count () const { - return ((Open_type_font *) this)->index_to_charcode_map_.size (); + return index_to_charcode_map_.size (); } Real @@ -239,7 +270,7 @@ Open_type_font::design_size () const which will trip errors more quickly. --hwn. */ - scm_from_int (1)); + scm_from_unsigned_integer (1)); return scm_to_double (entry) * Real (point_constant); } @@ -267,9 +298,30 @@ Open_type_font::get_global_table () const return lily_global_table_; } -String +string Open_type_font::font_name () const { return FT_Get_Postscript_Name (face_); } +SCM +Open_type_font::glyph_list () const +{ + SCM retval = SCM_EOL; + SCM *tail = &retval; + + for (int i = 0; i < face_->num_glyphs; i++) + { + const size_t len = 256; + char name[len]; + FT_Error code = FT_Get_Glyph_Name (face_, i, name, len); + if (code) + warning (_f ("FT_Get_Glyph_Name () error: %s", + freetype_error_string (code).c_str ())); + + *tail = scm_cons (scm_from_locale_string (name), SCM_EOL); + tail = SCM_CDRLOC (*tail); + } + + return retval; +}