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authorPeter Breitenlohner <peb@mppmu.mpg.de>2011-05-02 13:18:14 +0000
committerPeter Breitenlohner <peb@mppmu.mpg.de>2011-05-02 13:18:14 +0000
commit2ba98f9a00f1b34455b12ef44c361154b48000c6 (patch)
tree5dd3ffba80490ec11a173f38f8a8f52277ac4509 /Build/source/texk/ttf2pk2/ttfaux.c
parent9b5f1f3915e6c11001ef9c48efd372e93cbf7ab3 (diff)
Add texk/ttf2pk2 (ttf2pk-frretype2), at the moment not built by default
git-svn-id: svn://tug.org/texlive/trunk@22282 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/ttf2pk2/ttfaux.c')
-rw-r--r--Build/source/texk/ttf2pk2/ttfaux.c767
1 files changed, 767 insertions, 0 deletions
diff --git a/Build/source/texk/ttf2pk2/ttfaux.c b/Build/source/texk/ttf2pk2/ttfaux.c
new file mode 100644
index 00000000000..10b26d5ebc8
--- /dev/null
+++ b/Build/source/texk/ttf2pk2/ttfaux.c
@@ -0,0 +1,767 @@
+/*
+ * ttfaux.c
+ *
+ * This file is part of the ttf2pk package.
+ *
+ * Copyright 1997-1999, 2000, 2002 by
+ * Frederic Loyer <loyer@ensta.fr>
+ * Werner Lemberg <wl@gnu.org>
+ */
+
+#include <math.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include FT_OUTLINE_H
+#include FT_TYPE1_TABLES_H
+#include FT_BBOX_H
+
+#include "ttf2tfm.h"
+#include "newobj.h"
+#include "ligkern.h"
+#include "ttfenc.h"
+#include "tfmaux.h"
+#include "errormsg.h"
+#include "ttfaux.h"
+#include "filesrch.h"
+
+
+#define Macintosh_platform 1
+#define Macintosh_encoding 0
+
+#define Microsoft_platform 3
+#define Microsoft_Unicode_encoding 1
+
+#define SCRIPT_kana MAKE_FT_TAG('k', 'a', 'n', 'a')
+#define SCRIPT_hani MAKE_FT_TAG('h', 'a', 'n', 'i')
+#define SCRIPT_hang MAKE_FT_TAG('h', 'a', 'n', 'g')
+
+#define LANGUAGE_JAN MAKE_FT_TAG('J', 'A', 'N', ' ')
+#define LANGUAGE_CHN MAKE_FT_TAG('C', 'H', 'N', ' ')
+#define LANGUAGE_KOR MAKE_FT_TAG('K', 'O', 'R', ' ')
+
+#define FEATURE_vert MAKE_FT_TAG('v', 'e', 'r', 't')
+
+
+char *real_ttfname;
+
+FT_Library engine;
+FT_Face face;
+//FT_Instance instance;
+FT_GlyphSlot glyph;
+FT_Outline outline;
+FT_CharMap char_map;
+FT_Matrix matrix1, matrix2;
+
+int flags = FT_LOAD_DEFAULT|FT_LOAD_NO_SCALE;
+
+#if 0
+FT_Big_Glyph_Metrics metrics;
+FT_Face_Properties properties;
+#endif
+FT_BBox bbox;
+
+#if 0
+FT_Kerning directory;
+FT_Post post;
+
+TTO_GSUBHeader gsub_;
+TTO_GSUBHeader *gsub;
+#endif
+
+Boolean has_gsub;
+
+
+#if 0
+static void
+readttf_kern(Font *fnt)
+{
+ register kern *nk;
+ register ttfinfo *ti;
+ FT_Kern_0_Pair* pairs0;
+ FT_Error error;
+ unsigned int i, j;
+
+
+ if ((error = FT_Get_Kerning_Directory(face, &directory)))
+ oops("Cannot get kerning directory (error code = 0x%x).", error);
+
+ if (directory.nTables == 0)
+ return;
+
+ for (i = 0; i < directory.nTables; i++)
+ {
+ if ((error = FT_Load_Kerning_Table(face, i)))
+ oops("Cannot load kerning table (error code = 0x%x).", error);
+
+ switch (directory.tables[i].format)
+ {
+ case 0:
+ pairs0 = directory.tables[i].t.kern0.pairs;
+ for (j = 0; j < directory.tables[i].t.kern0.nPairs; j++, pairs0++)
+ {
+ ti = findglyph(pairs0->left, fnt->charlist);
+ if (ti == NULL)
+ warning("kern char not found");
+ else
+ {
+ nk = newkern();
+ nk->succ = findglyph(pairs0->right, fnt->charlist)->adobename;
+ nk->delta = transform(pairs0->value * 1000 / fnt->units_per_em, 0,
+ fnt->efactor, fnt->slant);
+ nk->next = ti->kerns;
+ ti->kerns = nk;
+ }
+ }
+ return; /* we stop after the first format 0 kerning table */
+
+ default:
+ break;
+ }
+ }
+ return;
+}
+
+#endif
+
+
+void
+readttf(Font *fnt, Boolean quiet, Boolean only_range)
+{
+ FT_Error error;
+ ttfinfo *ti, *Ti;
+ long Num, index;
+ unsigned int i, j;
+ long k, max_k;
+ unsigned short num_cmap;
+ unsigned short cmap_plat=0, cmap_enc=0;
+ int index_array[257];
+
+ static Boolean initialized = False;
+
+#if 0
+ FT_UShort in_string[2];
+#if 0
+ TTO_GSUB_String in, out;
+#endif
+
+ FT_UShort script_index, language_index, feature_index;
+ FT_UShort req_feature_index = 0xFFFF;
+#endif
+
+
+ /*
+ * We allocate a placeholder boundary and the `.notdef' character.
+ */
+
+ if (!only_range)
+ {
+ ti = newchar(fnt);
+ ti->charcode = -1;
+ ti->adobename = ".notdef";
+
+ ti = newchar(fnt);
+ ti->charcode = -1;
+ ti->adobename = "||"; /* boundary character name */
+ }
+
+ /*
+ * Initialize FreeType engine.
+ */
+
+ if (!initialized)
+ {
+ if ((error = FT_Init_FreeType(&engine)))
+ oops("Cannot initialize engine (error code = 0x%x).", error);
+#if 0
+ if ((error = FT_Init_Kerning_Extension(engine)))
+ oops("Cannot initialize kerning (error code = 0x%x).", error);
+
+ if (fnt->PSnames)
+ if ((error = FT_Init_Post_Extension(engine)))
+ oops("Cannot initialize PS name support (error code = 0x%x).", error);
+
+ if (fnt->rotate)
+ if ((error = FT_Init_GSUB_Extension(engine)))
+ oops("Cannot initialize GSUB support (error code = 0x%x).", error);
+#endif
+
+ /*
+ * Load face.
+ */
+
+ real_ttfname = TeX_search_ttf_file(&(fnt->ttfname));
+ if (!real_ttfname)
+ oops("Cannot find `%s'.", fnt->ttfname);
+
+ if ((error = FT_New_Face(engine, real_ttfname, 0,&face)))
+ oops("Cannot open `%s'.", real_ttfname);
+
+ /*
+ * Get face properties and allocate preload arrays.
+ */
+
+#if 0
+ FT_Get_Face_Properties(face, &properties);
+#endif
+
+ /*
+ * Now we try to open the proper font in a collection.
+ */
+
+ if (fnt->fontindex != 0)
+ {
+ if (face->num_faces == 1)
+ {
+ warning("This isn't a TrueType collection.\n"
+ "Parameter `-f' is ignored.");
+ fnt->fontindex = 0;
+ fnt->fontindexparam = NULL;
+ }
+ else
+ {
+#if 0
+ FT_Close_Face(face);
+ if ((error = FT_Open_Collection(engine, real_ttfname,
+ fnt->fontindex, &face)))
+ oops("Cannot open font %lu in TrueType Collection `%s'.",
+ fnt->fontindex, real_ttfname);
+#endif
+ }
+ }
+
+ /*
+ * Create instance.
+ */
+
+#if 0
+ if ((error = FT_New_Instance(face, &instance)))
+ oops("Cannot create instance for `%s' (error code = 0x%x).",
+ real_ttfname, error);
+#endif
+
+ /*
+ * We use a dummy glyph size of 10pt.
+ */
+
+#if 1
+ //if ((error = FT_Set_Instance_CharSize(instance, 10 * 64)))
+ if ((error = FT_Set_Char_Size(face, 10 * 64,10 * 64, 92,92)))
+ oops("Cannot set character size (error code = 0x%x).", error);
+#endif
+
+ matrix1.xx = (FT_Fixed)(floor(fnt->efactor * 1024) * (1L<<16)/1024);
+ matrix1.xy = (FT_Fixed)(floor(fnt->slant * 1024) * (1L<<16)/1024);
+ matrix1.yx = (FT_Fixed)0;
+ matrix1.yy = (FT_Fixed)(1L<<16);
+
+ if (fnt->rotate)
+ {
+ matrix2.xx = 0;
+ matrix2.yx = 1L << 16;
+ matrix2.xy = -matrix2.yx;
+ matrix2.yy = matrix2.xx;
+ }
+
+#if 0
+ if ((error = FT_Set_Instance_Transform_Flags(
+ instance,
+ fnt->rotate ? 1 : 0,
+ fnt->efactor != 1.0 ? 1 : 0)))
+ oops("Cannot set transform flags (error code = 0x%x).", error);
+#endif
+
+ /*
+ * Create glyph container.
+ */
+
+#if 0
+ if ((error = FT_New_Glyph(face, &glyph)))
+ oops("Cannot create glyph container (error code = 0x%x).", error);
+#endif
+
+ fnt->units_per_em = face->units_per_EM;
+
+ //fnt->fixedpitch = properties.postscript->isFixedPitch;
+ fnt->fixedpitch = FT_IS_FIXED_WIDTH(face);
+ //fnt->italicangle = properties.postscript->italicAngle / 65536.0;
+ fnt->italicangle = 0.0;
+ //fnt->xheight = properties.os2->sxHeight * 1000 / fnt->units_per_em;
+ fnt->xheight = face->height * 1000 / fnt->units_per_em;
+
+ if (fnt->PSnames != Only)
+ {
+ num_cmap = face->num_charmaps;
+ for (i = 0; i < num_cmap; i++)
+ {
+ cmap_plat=face->charmaps[i]->platform_id;
+ cmap_enc=face->charmaps[i]->encoding_id;
+#if 0
+ if ((error = FT_Get_CharMap_ID(face, i, &cmap_plat, &cmap_enc)))
+ oops("Cannot query cmap (error code = 0x%x).", error);
+#endif
+ if (cmap_plat == fnt->pid && cmap_enc == fnt->eid)
+ break;
+ }
+ if (i == num_cmap)
+ {
+ fprintf(stderr, "%s: ERROR: Invalid platform and/or encoding ID.\n",
+ progname);
+ if (num_cmap == 1)
+ fprintf(stderr, " The only valid PID/EID pair is");
+ else
+ fprintf(stderr, " Valid PID/EID pairs are:\n");
+ for (i = 0; i < num_cmap; i++)
+ {
+ cmap_plat=face->charmaps[i]->platform_id;
+ cmap_enc=face->charmaps[i]->encoding_id;
+ //FT_Get_CharMap_ID(face, i, &cmap_plat, &cmap_enc);
+ fprintf(stderr, " (%i,%i)\n", cmap_plat, cmap_enc);
+ }
+ fprintf(stderr, "\n");
+ exit(1);
+ }
+
+// if ((error = FT_Get_CharMap(face, i, &char_map)))
+ if ((error = FT_Set_Charmap(face, face->charmaps[i])))
+ oops("Cannot load cmap (error code = 0x%x).", error);
+ }
+
+ if (fnt->PSnames)
+ {
+ if (!FT_HAS_GLYPH_NAMES(face))
+ oops("Cannot load PS names.");
+ }
+ else if (cmap_plat == Microsoft_platform &&
+ cmap_enc == Microsoft_Unicode_encoding)
+ set_encoding_scheme(encUnicode, fnt);
+ else if (cmap_plat == Macintosh_platform &&
+ cmap_enc == Macintosh_encoding)
+ set_encoding_scheme(encMac, fnt);
+ else
+ set_encoding_scheme(encFontSpecific, fnt);
+
+#if 0
+ if (fnt->rotate)
+ {
+ gsub = &gsub_;
+
+ error = FT_Load_GSUB_Table(face, gsub, NULL);
+ if (!error)
+ has_gsub = True;
+ else if (error != FT_Err_Table_Missing)
+ warning("Cannot load GSUB table (error code = 0x%x).", error);
+ else
+ warning("No GSUB data available "
+ "for vertical glyph presentation forms.");
+
+ /* we check for the `vert' feature in Chinese, Japanese, and Korean */
+
+ error = FT_GSUB_Select_Script(gsub,
+ SCRIPT_kana,
+ &script_index);
+ if (error)
+ goto check_hani;
+ error = FT_GSUB_Select_Feature(gsub,
+ FEATURE_vert,
+ script_index,
+ 0xFFFF,
+ &feature_index);
+ if (error)
+ {
+ error = FT_GSUB_Select_Language(gsub,
+ LANGUAGE_JAN,
+ script_index,
+ &language_index,
+ &req_feature_index);
+ if (error)
+ goto check_hani;
+ error = FT_GSUB_Select_Feature(gsub,
+ FEATURE_vert,
+ script_index,
+ language_index,
+ &feature_index);
+ if (error)
+ goto check_hani;
+ else
+ goto Done;
+ }
+ else
+ goto Done;
+
+ check_hani:
+ error = FT_GSUB_Select_Script(gsub,
+ SCRIPT_hani,
+ &script_index);
+ if (error)
+ goto check_hang;
+ error = FT_GSUB_Select_Feature(gsub,
+ FEATURE_vert,
+ script_index,
+ 0xFFFF,
+ &feature_index);
+ if (error)
+ {
+ error = FT_GSUB_Select_Language(gsub,
+ LANGUAGE_CHN,
+ script_index,
+ &language_index,
+ &req_feature_index);
+ if (error)
+ goto check_hang;
+ error = FT_GSUB_Select_Feature(gsub,
+ FEATURE_vert,
+ script_index,
+ language_index,
+ &feature_index);
+ if (error)
+ goto check_hang;
+ else
+ goto Done;
+ }
+ else
+ goto Done;
+
+ check_hang:
+ error = FT_GSUB_Select_Script(gsub,
+ SCRIPT_hang,
+ &script_index);
+ if (error)
+ goto Done;
+ error = FT_GSUB_Select_Feature(gsub,
+ FEATURE_vert,
+ script_index,
+ 0xFFFF,
+ &feature_index);
+ if (error)
+ {
+ error = FT_GSUB_Select_Language(gsub,
+ LANGUAGE_KOR,
+ script_index,
+ &language_index,
+ &req_feature_index);
+ if (error)
+ goto Done;
+ error = FT_GSUB_Select_Feature(gsub,
+ FEATURE_vert,
+ script_index,
+ language_index,
+ &feature_index);
+ }
+
+ Done:
+ if (error)
+ {
+ warning("There is no data for vertical typesetting in GSUB table.");
+ has_gsub = False;
+ }
+
+ if (req_feature_index != 0xFFFF)
+ FT_GSUB_Add_Feature(gsub, req_feature_index, ALL_GLYPHS);
+ FT_GSUB_Add_Feature(gsub, feature_index, ALL_GLYPHS);
+
+ in.length = 1;
+ in.pos = 0;
+ in.string = in_string;
+ in.properties = NULL;
+
+ out.pos = 0;
+ out.allocated = 0;
+ out.string = NULL;
+ out.properties = NULL;
+ }
+#endif
+
+ initialized = True;
+ }
+
+ if (!quiet)
+ {
+ if (only_range)
+ printf("\n\n%s:\n", fnt->fullname);
+ printf("\n");
+ printf("Glyph Code Glyph Name ");
+ printf("Width llx lly urx ury\n");
+ printf("---------------------------------------");
+ printf("---------------------------------\n");
+ }
+
+ /*
+ * We load only glyphs with a valid cmap entry. Nevertheless, for
+ * the default mapping, we use the first 256 glyphs addressed by
+ * ascending code points, followed by glyphs not in the cmap.
+ *
+ * If we compute a range, we take the character codes given in
+ * the fnt->sf_code array.
+ *
+ * If the -N flag is set, no cmap is used at all. Instead, the
+ * first 256 glyphs (with a valid PS name) are used for the default
+ * mapping.
+ */
+
+ if (!only_range)
+ for (i = 0; i < 257; i++)
+ index_array[i] = 0;
+ else
+ for (i = 0; i < 256; i++)
+ fnt->inencptrs[i] = 0;
+
+ j = 0;
+ if (fnt->PSnames == Only)
+ max_k = face->num_glyphs - 1;
+ else
+ max_k = only_range ? 0xFF : 0x16FFFF;
+
+ for (k = 0; k <= max_k; k++)
+ {
+ char buff[128];
+ const char *an;
+
+
+ if (fnt->PSnames != Only)
+ {
+ if (only_range)
+ {
+ index = fnt->sf_code[k];
+ if (index < 0)
+ continue;
+ j = k;
+ }
+ else
+ index = k;
+
+ //Num = FT_Char_Index(char_map, index);
+ Num = FT_Get_Char_Index(face, index);
+
+ /* now we try to get a vertical glyph form */
+
+#if 0
+ if (has_gsub)
+ {
+ in_string[0] = Num;
+ error = FT_GSUB_Apply_String(gsub, &in, &out);
+ if (error && error != TTO_Err_Not_Covered)
+ warning("Cannot get the vertical glyph form for glyph index %d.",
+ Num);
+ else
+ Num = out.string[0];
+ }
+#endif
+
+ if (Num < 0)
+ oops("Failure on cmap mapping from %s.", fnt->ttfname);
+ if (Num == 0)
+ continue;
+ if (!only_range)
+ if (Num <= 256)
+ index_array[Num] = 1;
+ }
+ else
+ {
+ Num = k;
+ index = 0;
+ }
+
+// error = FT_Load_Glyph(instance, glyph, Num, 0);
+ error = FT_Load_Glyph(face, Num, flags);
+#if 0
+ if (!error)
+ error = FT_Get_Glyph_Big_Metrics(glyph, &metrics);
+ if (!error)
+ error = FT_Get_Glyph_Outline(glyph, &outline);
+#endif
+ if (!error)
+ {
+ if (fnt->efactor != 1.0 || fnt->slant != 0.0 )
+ FT_Outline_Transform(&face->glyph->outline, &matrix1);
+ if (fnt->rotate)
+ FT_Outline_Transform(&face->glyph->outline, &matrix2);
+ }
+ if (!error)
+ error = FT_Outline_Get_BBox(&face->glyph->outline, &bbox); /* we need the non-
+ grid-fitted bbox */
+ if (!error)
+ {
+ if (fnt->PSnames)
+ {
+ (void)FT_Get_Glyph_Name(face, Num, buff, 128);
+ an = newstring(buff);
+ }
+ else
+ an = code_to_adobename(index);
+
+ /* ignore characters not usable for typesetting with TeX */
+
+ if (strcmp(an, ".notdef") == 0)
+ continue;
+ if (strcmp(an, ".null") == 0)
+ continue;
+ if (strcmp(an, "nonmarkingreturn") == 0)
+ continue;
+
+ ti = newchar(fnt);
+ ti->charcode = index;
+ ti->glyphindex = Num;
+ ti->adobename = an;
+ ti->llx = bbox.xMin * 1000 / fnt->units_per_em;
+ ti->lly = bbox.yMin * 1000 / fnt->units_per_em;
+ ti->urx = bbox.xMax * 1000 / fnt->units_per_em;
+ ti->ury = bbox.yMax * 1000 / fnt->units_per_em;
+
+ /*
+ * We must now shift the rotated character both horizontally
+ * and vertically. The vertical amount is 25% by default.
+ */
+
+ if (fnt->rotate)
+ {
+ ti->llx += (face->glyph->metrics.vertBearingY - bbox.xMin) *
+ 1000 / fnt->units_per_em;
+ ti->lly -= 1000 * fnt->y_offset;
+ ti->urx += (face->glyph->metrics.vertBearingY - bbox.xMin) *
+ 1000 / fnt->units_per_em;
+ ti->ury -= 1000 * fnt->y_offset;
+ }
+
+ /*
+ * We need to avoid negative heights or depths. They break accents
+ * in math mode, among other things.
+ */
+
+ if (ti->lly > 0)
+ ti->lly = 0;
+ if (ti->ury < 0)
+ ti->ury = 0;
+ if (fnt->rotate)
+ ti->width = face->glyph->metrics.vertAdvance * 1000 / fnt->units_per_em;
+ else
+ ti->width = transform(face->glyph->metrics.horiAdvance * 1000 / fnt->units_per_em,
+ 0, fnt->efactor, fnt->slant);
+
+ if (!quiet)
+ printf("%5ld %05lx %-25s %5d % 5d,% 5d -- % 5d,% 5d\n",
+ Num, index, ti->adobename,
+ ti->width,
+ ti->llx, ti->lly, ti->urx, ti->ury);
+
+ if (j < 256)
+ {
+ fnt->inencptrs[j] = ti;
+ ti->incode = j;
+ }
+ j++;
+ }
+ }
+
+ /*
+ * Now we load glyphs without a cmap entry, provided some slots are
+ * still free -- we skip this if we have to compute a range or use
+ * PS names.
+ */
+
+ if (!only_range && !fnt->PSnames)
+ {
+ for (i = 1; i <= face->num_glyphs; i++)
+ {
+ const char *an;
+
+
+ if (index_array[i] == 0)
+ {
+ error = FT_Load_Glyph(face, i, flags);
+#if 0
+ if (!error)
+ error = FT_Get_Glyph_Big_Metrics(glyph, &metrics);
+ if (!error)
+ error = FT_Get_Glyph_Outline(glyph, &outline);
+ if (!error)
+ error = FT_Get_Outline_BBox(&outline, &bbox);
+#endif
+ if (!error)
+ {
+ an = code_to_adobename(i | 0x1000000);
+
+ ti = newchar(fnt);
+ ti->charcode = i | 0x1000000;
+ ti->glyphindex = i;
+ ti->adobename = an;
+ ti->llx = bbox.xMin * 1000 / fnt->units_per_em;
+ ti->lly = bbox.yMin * 1000 / fnt->units_per_em;
+ ti->urx = bbox.xMax * 1000 / fnt->units_per_em;
+ ti->ury = bbox.yMax * 1000 / fnt->units_per_em;
+
+ if (ti->lly > 0)
+ ti->lly = 0;
+ if (ti->ury < 0)
+ ti->ury = 0;
+ ti->width = transform(face->glyph->metrics.horiAdvance*1000 / fnt->units_per_em,
+ 0, fnt->efactor, fnt->slant);
+
+ if (!quiet)
+ printf("%5d %-25s %5d % 5d,% 5d -- % 5d,% 5d\n",
+ i, ti->adobename,
+ ti->width,
+ ti->llx, ti->lly, ti->urx, ti->ury);
+
+ if (j < 256)
+ {
+ fnt->inencptrs[j] = ti;
+ ti->incode = j;
+ }
+ else
+ break;
+ j++;
+ }
+ }
+ }
+ }
+
+ /* Finally, we construct a `Germandbls' glyph if necessary */
+
+ if (!only_range)
+ {
+ if (NULL == findadobe("Germandbls", fnt->charlist) &&
+ NULL != (Ti = findadobe("S", fnt->charlist)))
+ {
+ pcc *np, *nq;
+
+
+ ti = newchar(fnt);
+ ti->charcode = face->num_glyphs | 0x1000000;
+ ti->glyphindex = face->num_glyphs;
+ ti->adobename = "Germandbls";
+ ti->width = Ti->width << 1;
+ ti->llx = Ti->llx;
+ ti->lly = Ti->lly;
+ ti->urx = Ti->width + Ti->urx;
+ ti->ury = Ti->ury;
+ ti->kerns = Ti->kerns;
+
+ np = newpcc();
+ np->partname = "S";
+ nq = newpcc();
+ nq->partname = "S";
+ nq->xoffset = Ti->width;
+ np->next = nq;
+ ti->pccs = np;
+ ti->constructed = True;
+
+ if (!quiet)
+ printf("* %-25s %5d % 5d,% 5d -- % 5d,% 5d\n",
+ ti->adobename,
+ ti->width,
+ ti->llx, ti->lly, ti->urx, ti->ury);
+ }
+ }
+
+ /* kerning between subfonts isn't available */
+#if 0
+ if (!only_range)
+ readttf_kern(fnt);
+#endif
+}
+
+
+/* end */