From 2a393c134fe3fe8eb85bf818cb7ad6ae4396322a Mon Sep 17 00:00:00 2001
From: Martin Kretzschmar <mkretzschmar@src.gnome.org>
Date: Wed, 18 Sep 2002 22:20:42 +0000
Subject: Synched with Xpdf 1.01

---
(limited to 'pdf/xpdf/FTFont.cc')

diff --git a/pdf/xpdf/FTFont.cc b/pdf/xpdf/FTFont.cc
new file mode 100644
index 0000000..0524c7e
--- /dev/null
+++ b/pdf/xpdf/FTFont.cc
@@ -0,0 +1,685 @@
+//========================================================================
+//
+// FTFont.cc
+//
+// Copyright 2001-2002 Glyph & Cog, LLC
+//
+//========================================================================
+
+#ifdef __GNUC__
+#pragma implementation
+#endif
+
+#include <aconf.h>
+
+#if FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
+
+#include <math.h>
+#include <string.h>
+#include "gmem.h"
+#include "freetype/ftoutln.h"
+#include "freetype/internal/ftobjs.h"
+#if 1 //~ cff cid->gid map
+#include "freetype/internal/cfftypes.h"
+#include "freetype/internal/tttypes.h"
+#endif
+#include "GlobalParams.h"
+#include "GfxState.h"
+#include "FTFont.h"
+
+//------------------------------------------------------------------------
+
+FTFontEngine::FTFontEngine(Display *displayA, Visual *visualA, int depthA,
+			   Colormap colormapA, GBool aaA):
+  SFontEngine(displayA, visualA, depthA, colormapA) {
+
+  ok = gFalse;
+  if (FT_Init_FreeType(&lib)) {
+    return;
+  }
+  aa = aaA;
+  ok = gTrue;
+}
+
+FTFontEngine::~FTFontEngine() {
+  FT_Done_FreeType(lib);
+}
+
+//------------------------------------------------------------------------
+
+FTFontFile::FTFontFile(FTFontEngine *engineA, char *fontFileName,
+		       char **fontEnc, GBool pdfFontHasEncoding) {
+  char *name;
+  int unicodeCmap, macRomanCmap, msSymbolCmap;
+  int i, j;
+
+  ok = gFalse;
+  engine = engineA;
+  codeMap = NULL;
+  if (FT_New_Face(engine->lib, fontFileName, 0, &face)) {
+    return;
+  }
+
+  if (!strcmp(face->driver->root.clazz->module_name, "type1") ||
+      !strcmp(face->driver->root.clazz->module_name, "cff")) {
+
+    mode = ftFontModeCodeMapDirect;
+    codeMap = (Guint *)gmalloc(256 * sizeof(Guint));
+    for (i = 0; i < 256; ++i) {
+      codeMap[i] = 0;
+      if ((name = fontEnc[i])) {
+	codeMap[i] = FT_Get_Name_Index(face, name);
+      }
+    }
+
+  } else {
+
+    // To match up with the Adobe-defined behaviour, we choose a cmap
+    // like this:
+    // 1. If the PDF font has an encoding:
+    //    1a. If the TrueType font has a Microsoft Unicode cmap, use it,
+    //        and use the Unicode indexes, not the char codes.
+    //    1b. If the TrueType font has a Macintosh Roman cmap, use it,
+    //        and reverse map the char names through MacRomanEncoding to
+    //        get char codes.
+    // 2. If the PDF font does not have an encoding:
+    //    2a. If the TrueType font has a Macintosh Roman cmap, use it,
+    //        and use char codes directly.
+    //    2b. If the TrueType font has a Microsoft Symbol cmap, use it,
+    //        and use (0xf000 + char code).
+    // 3. If none of these rules apply, use the first cmap and hope for
+    //    the best (this shouldn't happen).
+    unicodeCmap = macRomanCmap = msSymbolCmap = 0xffff;
+    for (i = 0; i < face->num_charmaps; ++i) {
+      if (face->charmaps[i]->platform_id == 3 &&
+	  face->charmaps[i]->encoding_id == 1) {
+	unicodeCmap = i;
+      } else if (face->charmaps[i]->platform_id == 1 &&
+		 face->charmaps[i]->encoding_id == 0) {
+	macRomanCmap = i;
+      } else if (face->charmaps[i]->platform_id == 3 &&
+		 face->charmaps[i]->encoding_id == 0) {
+	msSymbolCmap = i;
+      }
+    }
+    i = 0;
+    mode = ftFontModeCharCode;
+    charMapOffset = 0;
+    if (pdfFontHasEncoding) {
+      if (unicodeCmap != 0xffff) {
+	i = unicodeCmap;
+	mode = ftFontModeUnicode;
+      } else if (macRomanCmap != 0xffff) {
+	i = macRomanCmap;
+	mode = ftFontModeCodeMap;
+	codeMap = (Guint *)gmalloc(256 * sizeof(Guint));
+	for (j = 0; j < 256; ++j) {
+	  if (fontEnc[j]) {
+	    codeMap[j] = globalParams->getMacRomanCharCode(fontEnc[j]);
+	  } else {
+	    codeMap[j] = 0;
+	  }
+	}
+      }
+    } else {
+      if (macRomanCmap != 0xffff) {
+	i = macRomanCmap;
+	mode = ftFontModeCharCode;
+      } else if (msSymbolCmap != 0xffff) {
+	i = msSymbolCmap;
+	mode = ftFontModeCharCodeOffset;
+	charMapOffset = 0xf000;
+      }
+    }
+    if (FT_Set_Charmap(face, face->charmaps[i])) {
+      return;
+    }
+  }
+
+  ok = gTrue;
+}
+
+FTFontFile::FTFontFile(FTFontEngine *engineA, char *fontFileName,
+		       Gushort *cidToGIDA, int cidToGIDLenA) {
+  ok = gFalse;
+  engine = engineA;
+  codeMap = NULL;
+  if (FT_New_Face(engine->lib, fontFileName, 0, &face)) {
+    return;
+  }
+  cidToGID = cidToGIDA;
+  cidToGIDLen = cidToGIDLenA;
+  mode = ftFontModeCIDToGIDMap;
+  ok = gTrue;
+}
+
+FTFontFile::FTFontFile(FTFontEngine *engineA, char *fontFileName) {
+  ok = gFalse;
+  engine = engineA;
+  codeMap = NULL;
+  if (FT_New_Face(engine->lib, fontFileName, 0, &face)) {
+    return;
+  }
+  cidToGID = NULL;
+  cidToGIDLen = 0;
+  mode = ftFontModeCFFCharset;
+  ok = gTrue;
+}
+
+FTFontFile::~FTFontFile() {
+  if (face) {
+    FT_Done_Face(face);
+  }
+  if (codeMap) {
+    gfree(codeMap);
+  }
+}
+
+//------------------------------------------------------------------------
+
+FTFont::FTFont(FTFontFile *fontFileA, double *m) {
+  FTFontEngine *engine;
+  FT_Face face;
+  double size, div;
+  int x, xMin, xMax;
+  int y, yMin, yMax;
+  int i;
+
+  ok = gFalse;
+  fontFile = fontFileA;
+  engine = fontFile->engine;
+  face = fontFile->face;
+  if (FT_New_Size(face, &sizeObj)) {
+    return;
+  }
+  face->size = sizeObj;
+  size = sqrt(m[2]*m[2] + m[3]*m[3]);
+  if (FT_Set_Pixel_Sizes(face, 0, (int)size)) {
+    return;
+  }
+
+  div = face->bbox.xMax > 20000 ? 65536 : 1;
+
+  // transform the four corners of the font bounding box -- the min
+  // and max values form the bounding box of the transformed font
+  x = (int)((m[0] * face->bbox.xMin + m[2] * face->bbox.yMin) /
+	    (div * face->units_per_EM));
+  xMin = xMax = x;
+  y = (int)((m[1] * face->bbox.xMin + m[3] * face->bbox.yMin) /
+	    (div * face->units_per_EM));
+  yMin = yMax = y;
+  x = (int)((m[0] * face->bbox.xMin + m[2] * face->bbox.yMax) /
+	    (div * face->units_per_EM));
+  if (x < xMin) {
+    xMin = x;
+  } else if (x > xMax) {
+    xMax = x;
+  }
+  y = (int)((m[1] * face->bbox.xMin + m[3] * face->bbox.yMax) /
+	    (div * face->units_per_EM));
+  if (y < yMin) {
+    yMin = y;
+  } else if (y > yMax) {
+    yMax = y;
+  }
+  x = (int)((m[0] * face->bbox.xMax + m[2] * face->bbox.yMin) /
+	    (div * face->units_per_EM));
+  if (x < xMin) {
+    xMin = x;
+  } else if (x > xMax) {
+    xMax = x;
+  }
+  y = (int)((m[1] * face->bbox.xMax + m[3] * face->bbox.yMin) /
+	    (div * face->units_per_EM));
+  if (y < yMin) {
+    yMin = y;
+  } else if (y > yMax) {
+    yMax = y;
+  }
+  x = (int)((m[0] * face->bbox.xMax + m[2] * face->bbox.yMax) /
+	    (div * face->units_per_EM));
+  if (x < xMin) {
+    xMin = x;
+  } else if (x > xMax) {
+    xMax = x;
+  }
+  y = (int)((m[1] * face->bbox.xMax + m[3] * face->bbox.yMax) /
+	    (div * face->units_per_EM));
+  if (y < yMin) {
+    yMin = y;
+  } else if (y > yMax) {
+    yMax = y;
+  }
+  // This is a kludge: some buggy PDF generators embed fonts with
+  // zero bounding boxes.
+  if (xMax == xMin) {
+    xMin = 0;
+    xMax = (int)size;
+  }
+  if (yMax == yMin) {
+    yMin = 0;
+    yMax = (int)(1.2 * size);
+  }
+  // this should be (max - min + 1), but we add some padding to
+  // deal with rounding errors
+  glyphW = xMax - xMin + 3;
+  glyphH = yMax - yMin + 3;
+  // another kludge: some CJK TT fonts have bogus bboxes, so add more
+  // padding
+  if (face->num_glyphs > 1000) {
+    glyphW += glyphW >> 1;
+    glyphH += glyphH >> 1;
+  }
+  if (engine->aa) {
+    glyphSize = glyphW * glyphH;
+  } else {
+    glyphSize = ((glyphW + 7) >> 3) * glyphH;
+  }
+
+  // set up the glyph pixmap cache
+  cacheAssoc = 8;
+  if (glyphSize <= 256) {
+    cacheSets = 8;
+  } else if (glyphSize <= 512) {
+    cacheSets = 4;
+  } else if (glyphSize <= 1024) {
+    cacheSets = 2;
+  } else {
+    cacheSets = 1;
+  }
+  cache = (Guchar *)gmalloc(cacheSets * cacheAssoc * glyphSize);
+  cacheTags = (FTFontCacheTag *)gmalloc(cacheSets * cacheAssoc *
+					sizeof(FTFontCacheTag));
+  for (i = 0; i < cacheSets * cacheAssoc; ++i) {
+    cacheTags[i].mru = i & (cacheAssoc - 1);
+  }
+
+  // create the XImage
+  if (!(image = XCreateImage(engine->display, engine->visual, engine->depth,
+			     ZPixmap, 0, NULL, glyphW, glyphH, 8, 0))) {
+    return;
+  }
+  image->data = (char *)gmalloc(glyphH * image->bytes_per_line);
+
+  // compute the transform matrix
+  matrix.xx = (FT_Fixed)((m[0] / size) * 65536);
+  matrix.yx = (FT_Fixed)((m[1] / size) * 65536);
+  matrix.xy = (FT_Fixed)((m[2] / size) * 65536);
+  matrix.yy = (FT_Fixed)((m[3] / size) * 65536);
+
+  ok = gTrue;
+}
+
+FTFont::~FTFont() {
+  gfree(cacheTags);
+  gfree(cache);
+  gfree(image->data);
+  image->data = NULL;
+  XDestroyImage(image);
+}
+
+GBool FTFont::drawChar(Drawable d, int w, int h, GC gc,
+		       int x, int y, int r, int g, int b,
+		       CharCode c, Unicode u) {
+  FTFontEngine *engine;
+  XColor xcolor;
+  int bgR, bgG, bgB;
+  Gulong colors[5];
+  Guchar *p;
+  int pix;
+  int xOffset, yOffset, x0, y0, x1, y1, gw, gh, w0, h0;
+  int xx, yy, xx1;
+
+  engine = fontFile->engine;
+
+  // no Unicode index for this char - don't draw anything
+  if (fontFile->mode == ftFontModeUnicode && u == 0) {
+    return gFalse;
+  }
+
+  // generate the glyph pixmap
+  if (!(p = getGlyphPixmap(c, u, &xOffset, &yOffset, &gw, &gh))) {
+    return gFalse;
+  }
+
+  // compute: (x0,y0) = position in destination drawable
+  //          (x1,y1) = position in glyph image
+  //          (w0,h0) = size of image transfer
+  x0 = x - xOffset;
+  y0 = y - yOffset;
+  x1 = 0;
+  y1 = 0;
+  w0 = gw;
+  h0 = gh;
+  if (x0 < 0) {
+    x1 = -x0;
+    w0 += x0;
+    x0 = 0;
+  }
+  if (x0 + w0 > w) {
+    w0 = w - x0;
+  }
+  if (w0 < 0) {
+    return gTrue;
+  }
+  if (y0 < 0) {
+    y1 = -y0;
+    h0 += y0;
+    y0 = 0;
+  }
+  if (y0 + h0 > h) {
+    h0 = h - y0;
+  }
+  if (h0 < 0) {
+    return gTrue;
+  }
+
+  // read the X image
+  XGetSubImage(engine->display, d, x0, y0, w0, h0, (1 << engine->depth) - 1,
+	       ZPixmap, image, x1, y1);
+
+  if (engine->aa) {
+
+    // compute the colors
+    xcolor.pixel = XGetPixel(image, x1 + w0/2, y1 + h0/2);
+    XQueryColor(engine->display, engine->colormap, &xcolor);
+    bgR = xcolor.red;
+    bgG = xcolor.green;
+    bgB = xcolor.blue;
+    colors[1] = engine->findColor((r + 3*bgR) / 4,
+				  (g + 3*bgG) / 4,
+				  (b + 3*bgB) / 4);
+    colors[2] = engine->findColor((r + bgR) / 2,
+				  (g + bgG) / 2,
+				  (b + bgB) / 2);
+    colors[3] = engine->findColor((3*r + bgR) / 4,
+				  (3*g + bgG) / 4,
+				  (3*b + bgB) / 4);
+    colors[4] = engine->findColor(r, g, b);
+
+    // stuff the glyph pixmap into the X image
+    for (yy = 0; yy < gh; ++yy) {
+      for (xx = 0; xx < gw; ++xx) {
+	pix = *p++ & 0xff;
+	// this is a heuristic which seems to produce decent
+	// results -- the linear mapping would be:
+	// pix = (pix * 5) / 256;
+	pix = ((pix + 10) * 5) / 256;
+	if (pix > 4) {
+	  pix = 4;
+	}
+	if (pix > 0) {
+	  XPutPixel(image, xx, yy, colors[pix]);
+	}
+      }
+    }
+
+  } else {
+
+    // one color
+    colors[1] = engine->findColor(r, g, b);
+
+    // stuff the glyph bitmap into the X image
+    for (yy = 0; yy < gh; ++yy) {
+      for (xx = 0; xx < gw; xx += 8) {
+	pix = *p++;
+	for (xx1 = xx; xx1 < xx + 8 && xx1 < gw; ++xx1) {
+	  if (pix & 0x80) {
+	    XPutPixel(image, xx1, yy, colors[1]);
+	  }
+	  pix <<= 1;
+	}
+      }
+    }
+
+  }
+
+  // draw the X image
+  XPutImage(engine->display, d, gc, image, x1, y1, x0, y0, w0, h0);
+
+  return gTrue;
+}
+
+Guchar *FTFont::getGlyphPixmap(CharCode c, Unicode u,
+			       int *x, int *y, int *w, int *h) {
+  FT_GlyphSlot slot;
+  FT_UInt idx;
+  int gSize;
+  int i, j, k;
+  Guchar *ret;
+
+  // check the cache
+  i = (c & (cacheSets - 1)) * cacheAssoc;
+  for (j = 0; j < cacheAssoc; ++j) {
+    if ((cacheTags[i+j].mru & 0x8000) && cacheTags[i+j].code == c) {
+      *x = cacheTags[i+j].x;
+      *y = cacheTags[i+j].y;
+      *w = cacheTags[i+j].w;
+      *h = cacheTags[i+j].h;
+      for (k = 0; k < cacheAssoc; ++k) {
+	if (k != j &&
+	    (cacheTags[i+k].mru & 0x7fff) < (cacheTags[i+j].mru & 0x7fff)) {
+	  ++cacheTags[i+k].mru;
+	}
+      }
+      cacheTags[i+j].mru = 0x8000;
+      return cache + (i+j) * glyphSize;
+    }
+  }
+
+  // generate the glyph pixmap or bitmap
+  fontFile->face->size = sizeObj;
+  FT_Set_Transform(fontFile->face, &matrix, NULL);
+  slot = fontFile->face->glyph;
+  idx = getGlyphIndex(c, u);
+  // if we have the FT2 bytecode interpreter, autohinting won't be used
+#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
+  if (FT_Load_Glyph(fontFile->face, idx, FT_LOAD_DEFAULT)) {
+    return gFalse;
+  }
+#else
+  // FT2's autohinting doesn't always work very well (especially with
+  // font subsets), so turn it off if anti-aliasing is enabled; if
+  // anti-aliasing is disabled, this seems to be a tossup - some fonts
+  // look better with hinting, some without, so leave hinting on
+  if (FT_Load_Glyph(fontFile->face, idx,
+		    fontFile->engine->aa ? FT_LOAD_NO_HINTING
+		                         : FT_LOAD_DEFAULT)) {
+    return gFalse;
+  }
+#endif
+  if (FT_Render_Glyph(slot,
+		      fontFile->engine->aa ? ft_render_mode_normal :
+		                             ft_render_mode_mono)) {
+    return gFalse;
+  }
+  *x = -slot->bitmap_left;
+  *y = slot->bitmap_top;
+  *w = slot->bitmap.width;
+  *h = slot->bitmap.rows;
+  if (*w > glyphW || *h > glyphH) {
+#if 1 //~ debug
+    fprintf(stderr, "Weird FreeType glyph size: %d > %d or %d > %d\n",
+	    *w, glyphW, *h, glyphH);
+#endif
+    return NULL;
+  }
+
+  // store glyph pixmap in cache
+  ret = NULL;
+  for (j = 0; j < cacheAssoc; ++j) {
+    if ((cacheTags[i+j].mru & 0x7fff) == cacheAssoc - 1) {
+      cacheTags[i+j].mru = 0x8000;
+      cacheTags[i+j].code = c;
+      cacheTags[i+j].x = *x;
+      cacheTags[i+j].y = *y;
+      cacheTags[i+j].w = *w;
+      cacheTags[i+j].h = *h;
+      if (fontFile->engine->aa) {
+	gSize = *w * *h;
+      } else {
+	gSize = ((*w + 7) >> 3) * *h;
+      }
+      ret = cache + (i+j) * glyphSize;
+      memcpy(ret, slot->bitmap.buffer, gSize);
+    } else {
+      ++cacheTags[i+j].mru;
+    }
+  }
+  return ret;
+}
+
+GBool FTFont::getCharPath(CharCode c, Unicode u, GfxState *state) {
+  static FT_Outline_Funcs outlineFuncs = {
+    &charPathMoveTo,
+    &charPathLineTo,
+    &charPathConicTo,
+    &charPathCubicTo,
+    0, 0
+  };
+  FT_GlyphSlot slot;
+  FT_UInt idx;
+  FT_Glyph glyph;
+
+  fontFile->face->size = sizeObj;
+  FT_Set_Transform(fontFile->face, &matrix, NULL);
+  slot = fontFile->face->glyph;
+  idx = getGlyphIndex(c, u);
+#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
+  if (FT_Load_Glyph(fontFile->face, idx, FT_LOAD_DEFAULT)) {
+    return gFalse;
+  }
+#else
+  // FT2's autohinting doesn't always work very well (especially with
+  // font subsets), so turn it off if anti-aliasing is enabled; if
+  // anti-aliasing is disabled, this seems to be a tossup - some fonts
+  // look better with hinting, some without, so leave hinting on
+  if (FT_Load_Glyph(fontFile->face, idx,
+		    fontFile->engine->aa ? FT_LOAD_NO_HINTING
+		                         : FT_LOAD_DEFAULT)) {
+    return gFalse;
+  }
+#endif
+  if (FT_Get_Glyph(slot, &glyph)) {
+    return gFalse;
+  }
+  FT_Outline_Decompose(&((FT_OutlineGlyph)glyph)->outline,
+		       &outlineFuncs, state);
+  return gTrue;
+}
+
+int FTFont::charPathMoveTo(FT_Vector *pt, void *state) {
+  ((GfxState *)state)->moveTo(pt->x / 64.0, -pt->y / 64.0);
+  return 0;
+}
+
+int FTFont::charPathLineTo(FT_Vector *pt, void *state) {
+  ((GfxState *)state)->lineTo(pt->x / 64.0, -pt->y / 64.0);
+  return 0;
+}
+
+int FTFont::charPathConicTo(FT_Vector *ctrl, FT_Vector *pt, void *state) {
+  double x0, y0, x1, y1, x2, y2, x3, y3, xc, yc;
+
+  x0 = ((GfxState *)state)->getCurX();
+  y0 = ((GfxState *)state)->getCurY();
+  xc = ctrl->x / 64.0;
+  yc = -ctrl->y / 64.0;
+  x3 = pt->x / 64.0;
+  y3 = -pt->y / 64.0;
+
+  // A second-order Bezier curve is defined by two endpoints, p0 and
+  // p3, and one control point, pc:
+  //
+  //     p(t) = (1-t)^2*p0 + t*(1-t)*pc + t^2*p3
+  //
+  // A third-order Bezier curve is defined by the same two endpoints,
+  // p0 and p3, and two control points, p1 and p2:
+  //
+  //     p(t) = (1-t)^3*p0 + 3t*(1-t)^2*p1 + 3t^2*(1-t)*p2 + t^3*p3
+  //
+  // Applying some algebra, we can convert a second-order curve to a
+  // third-order curve:
+  //
+  //     p1 = (1/3) * (p0 + 2pc)
+  //     p2 = (1/3) * (2pc + p3)
+
+  x1 = (1.0 / 3.0) * (x0 + 2 * xc);
+  y1 = (1.0 / 3.0) * (y0 + 2 * yc);
+  x2 = (1.0 / 3.0) * (2 * xc + x3);
+  y2 = (1.0 / 3.0) * (2 * yc + y3);
+
+  ((GfxState *)state)->curveTo(x1, y1, x2, y2, x3, y3);
+  return 0;
+}
+
+int FTFont::charPathCubicTo(FT_Vector *ctrl1, FT_Vector *ctrl2,
+			    FT_Vector *pt, void *state) {
+  ((GfxState *)state)->curveTo(ctrl1->x / 64.0, -ctrl1->y / 64.0,
+			       ctrl2->x / 64.0, -ctrl2->y / 64.0,
+			       pt->x / 64.0, -pt->y / 64.0);
+  return 0;
+}
+
+FT_UInt FTFont::getGlyphIndex(CharCode c, Unicode u) {
+  FT_UInt idx;
+  int j;
+
+  idx = 0; // make gcc happy
+  switch (fontFile->mode) {
+  case ftFontModeUnicode:
+    idx = FT_Get_Char_Index(fontFile->face, (FT_ULong)u);
+    break;
+  case ftFontModeCharCode:
+    idx = FT_Get_Char_Index(fontFile->face, (FT_ULong)c);
+    break;
+  case ftFontModeCharCodeOffset:
+    idx = FT_Get_Char_Index(fontFile->face,
+			    (FT_ULong)(c + fontFile->charMapOffset));
+    break;
+  case ftFontModeCodeMap:
+    if (c <= 0xff) {
+      idx = FT_Get_Char_Index(fontFile->face, (FT_ULong)fontFile->codeMap[c]);
+    } else {
+      idx = 0;
+    }
+    break;
+  case ftFontModeCodeMapDirect:
+    if (c <= 0xff) {
+      idx = (FT_UInt)fontFile->codeMap[c];
+    } else {
+      idx = 0;
+    }
+    break;
+  case ftFontModeCIDToGIDMap:
+    if (fontFile->cidToGIDLen) {
+      if ((int)c < fontFile->cidToGIDLen) {
+	idx = (FT_UInt)fontFile->cidToGID[c];
+      } else {
+	idx = (FT_UInt)0;
+      }
+    } else {
+      idx = (FT_UInt)c;
+    }
+    break;
+  case ftFontModeCFFCharset:
+#if 1 //~ cff cid->gid map
+#if FREETYPE_MAJOR == 2 && FREETYPE_MINOR == 0
+    CFF_Font *cff = (CFF_Font *)((TT_Face)fontFile->face)->extra.data;
+#else
+    CFF_Font cff = (CFF_Font)((TT_Face)fontFile->face)->extra.data;
+#endif
+    idx = 0;
+    for (j = 0; j < (int)cff->num_glyphs; ++j) {
+      if (cff->charset.sids[j] == c) {
+	idx = j;
+	break;
+      }
+    }
+#endif
+    break;
+  }
+  return idx;
+}
+
+#endif // FREETYPE2 && (HAVE_FREETYPE_FREETYPE_H || HAVE_FREETYPE_H)
--
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