Update harfbuzz-ng to 1a5a91dc0d8bf4b72a2f22dc6300b06ad7000b79.

third_party/harfbuzz-ng/src/hb-ft.c

Index: third_party/harfbuzz-ng/src/hb-ft.c
diff --git a/third_party/harfbuzz-ng/src/hb-ft.c b/third_party/harfbuzz-ng/src/hb-ft.c
deleted file mode 100644
index e696fe8242ad5503397ccc9c396adbf27b79d0a9..0000000000000000000000000000000000000000
--- a/third_party/harfbuzz-ng/src/hb-ft.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Copyright (C) 2009  Red Hat, Inc.
- * Copyright (C) 2009  Keith Stribley
- *
- *  This is part of HarfBuzz, a text shaping library.
- *
- * Permission is hereby granted, without written agreement and without
- * license or royalty fees, to use, copy, modify, and distribute this
- * software and its documentation for any purpose, provided that the
- * above copyright notice and the following two paragraphs appear in
- * all copies of this software.
- *
- * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
- * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
- * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
- * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
- * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
- * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
- *
- * Red Hat Author(s): Behdad Esfahbod
- */
-
-#include "hb-private.h"
-
-#include "hb-ft.h"
-
-#include "hb-font-private.h"
-
-#include FT_TRUETYPE_TABLES_H
-
-HB_BEGIN_DECLS
-
-
-static hb_codepoint_t
-hb_ft_get_glyph (hb_font_t *font HB_UNUSED,
-		 hb_face_t *face HB_UNUSED,
-		 const void *user_data,
-		 hb_codepoint_t unicode,
-		 hb_codepoint_t variation_selector)
-{
-  FT_Face ft_face = (FT_Face) user_data;
-
-#ifdef HAVE_FT_FACE_GETCHARVARIANTINDEX
-  if (unlikely (variation_selector)) {
-    hb_codepoint_t glyph = FT_Face_GetCharVariantIndex (ft_face, unicode, variation_selector);
-    if (glyph)
-      return glyph;
-  }
-#endif
-
-  return FT_Get_Char_Index (ft_face, unicode);
-}
-
-static void
-hb_ft_get_glyph_advance (hb_font_t *font HB_UNUSED,
-			 hb_face_t *face HB_UNUSED,
-			 const void *user_data,
-			 hb_codepoint_t glyph,
-			 hb_position_t *x_advance,
-			 hb_position_t *y_advance)
-{
-  FT_Face ft_face = (FT_Face) user_data;
-  int load_flags = FT_LOAD_DEFAULT;
-
-  /* TODO: load_flags, embolden, etc */
-
-  if (likely (!FT_Load_Glyph (ft_face, glyph, load_flags)))
-  {
-    *x_advance = ft_face->glyph->advance.x;
-    *y_advance = ft_face->glyph->advance.y;
-  }
-}
-
-static void
-hb_ft_get_glyph_extents (hb_font_t *font HB_UNUSED,
-			 hb_face_t *face HB_UNUSED,
-			 const void *user_data,
-			 hb_codepoint_t glyph,
-			 hb_glyph_extents_t *extents)
-{
-  FT_Face ft_face = (FT_Face) user_data;
-  int load_flags = FT_LOAD_DEFAULT;
-
-  /* TODO: load_flags, embolden, etc */
-
-  if (likely (!FT_Load_Glyph (ft_face, glyph, load_flags)))
-  {
-    /* XXX: A few negations should be in order here, not sure. */
-    extents->x_bearing = ft_face->glyph->metrics.horiBearingX;
-    extents->y_bearing = ft_face->glyph->metrics.horiBearingY;
-    extents->width = ft_face->glyph->metrics.width;
-    extents->height = ft_face->glyph->metrics.height;
-  }
-}
-
-static hb_bool_t
-hb_ft_get_contour_point (hb_font_t *font HB_UNUSED,
-			 hb_face_t *face HB_UNUSED,
-			 const void *user_data,
-			 unsigned int point_index,
-			 hb_codepoint_t glyph,
-			 hb_position_t *x,
-			 hb_position_t *y)
-{
-  FT_Face ft_face = (FT_Face) user_data;
-  int load_flags = FT_LOAD_DEFAULT;
-
-  /* TODO: load_flags, embolden, etc */
-
-  if (unlikely (FT_Load_Glyph (ft_face, glyph, load_flags)))
-      return FALSE;
-
-  if (unlikely (ft_face->glyph->format != FT_GLYPH_FORMAT_OUTLINE))
-      return FALSE;
-
-  if (unlikely (point_index >= (unsigned int) ft_face->glyph->outline.n_points))
-      return FALSE;
-
-  *x = ft_face->glyph->outline.points[point_index].x;
-  *y = ft_face->glyph->outline.points[point_index].y;
-
-  return TRUE;
-}
-
-static hb_position_t
-hb_ft_get_kerning (hb_font_t *font HB_UNUSED,
-		   hb_face_t *face HB_UNUSED,
-		   const void *user_data,
-		   hb_codepoint_t first_glyph,
-		   hb_codepoint_t second_glyph)
-{
-  FT_Face ft_face = (FT_Face) user_data;
-  FT_Vector kerning;
-
-  /* TODO: Kern type? */
-  if (FT_Get_Kerning (ft_face, first_glyph, second_glyph, FT_KERNING_DEFAULT, &kerning))
-      return 0;
-
-  return kerning.x;
-}
-
-static hb_font_funcs_t ft_ffuncs = {
-  HB_REFERENCE_COUNT_INVALID, /* ref_count */
-  TRUE, /* immutable */
-  {
-    hb_ft_get_glyph,
-    hb_ft_get_glyph_advance,
-    hb_ft_get_glyph_extents,
-    hb_ft_get_contour_point,
-    hb_ft_get_kerning
-  }
-};
-
-hb_font_funcs_t *
-hb_ft_get_font_funcs (void)
-{
-  return &ft_ffuncs;
-}
-
-
-static hb_blob_t *
-get_table  (hb_tag_t tag, void *user_data)
-{
-  FT_Face ft_face = (FT_Face) user_data;
-  FT_Byte *buffer;
-  FT_ULong  length = 0;
-  FT_Error error;
-
-  if (unlikely (tag == HB_TAG_NONE))
-    return NULL;
-
-  error = FT_Load_Sfnt_Table (ft_face, tag, 0, NULL, &length);
-  if (error)
-    return NULL;
-
-  /* TODO Use FT_Memory? */
-  buffer = (FT_Byte *) malloc (length);
-  if (buffer == NULL)
-    return NULL;
-
-  error = FT_Load_Sfnt_Table (ft_face, tag, 0, buffer, &length);
-  if (error)
-    return NULL;
-
-  return hb_blob_create ((const char *) buffer, length,
-			 HB_MEMORY_MODE_WRITABLE,
-			 free, buffer);
-}
-
-
-hb_face_t *
-hb_ft_face_create (FT_Face           ft_face,
-		   hb_destroy_func_t destroy)
-{
-  hb_face_t *face;
-
-  if (ft_face->stream->read == NULL) {
-    hb_blob_t *blob;
-
-    blob = hb_blob_create ((const char *) ft_face->stream->base,
-			   (unsigned int) ft_face->stream->size,
-			   /* TODO: Check FT_FACE_FLAG_EXTERNAL_STREAM? */
-			   HB_MEMORY_MODE_READONLY_MAY_MAKE_WRITABLE,
-			   destroy, ft_face);
-    face = hb_face_create_for_data (blob, ft_face->face_index);
-    hb_blob_destroy (blob);
-  } else {
-    face = hb_face_create_for_tables (get_table, destroy, ft_face);
-  }
-
-  return face;
-}
-
-static void
-hb_ft_face_finalize (FT_Face ft_face)
-{
-  hb_face_destroy ((hb_face_t *) ft_face->generic.data);
-}
-
-hb_face_t *
-hb_ft_face_create_cached (FT_Face ft_face)
-{
-  if (unlikely (!ft_face->generic.data || ft_face->generic.finalizer != (FT_Generic_Finalizer) hb_ft_face_finalize))
-  {
-    if (ft_face->generic.finalizer)
-      ft_face->generic.finalizer (ft_face);
-
-    ft_face->generic.data = hb_ft_face_create (ft_face, NULL);
-    ft_face->generic.finalizer = (FT_Generic_Finalizer) hb_ft_face_finalize;
-  }
-
-  return hb_face_reference ((hb_face_t *) ft_face->generic.data);
-}
-
-
-hb_font_t *
-hb_ft_font_create (FT_Face           ft_face,
-		   hb_destroy_func_t destroy)
-{
-  hb_font_t *font;
-
-  font = hb_font_create ();
-  hb_font_set_funcs (font,
-		     hb_ft_get_font_funcs (),
-		     destroy, ft_face);
-  hb_font_set_scale (font,
-		     ((uint64_t) ft_face->size->metrics.x_scale * (uint64_t) ft_face->units_per_EM) >> 16,
-		     ((uint64_t) ft_face->size->metrics.y_scale * (uint64_t) ft_face->units_per_EM) >> 16);
-  hb_font_set_ppem (font,
-		    ft_face->size->metrics.x_ppem,
-		    ft_face->size->metrics.y_ppem);
-
-  return font;
-}
-
-
-HB_END_DECLS