resolves #1129 bundle emoji font and use as fallback font (PR #1527)

2 files changed, 52 insertions, 0 deletions

diff --git a/scripts/subset-fonts.pe b/scripts/subset-fonts.pe
index fc32868c..ccbeed77 100755
--- a/scripts/subset-fonts.pe
+++ b/scripts/subset-fonts.pe
@@ -40,6 +40,8 @@
 genflags = 0x90 + 0x08
 copy_fonts = ["NotoSerif-Regular.ttf", "NotoSerif-Bold.ttf", "NotoSerif-Italic.ttf", "NotoSerif-BoldItalic.ttf", "mplus-1p-regular.ttf"]
 copy_scripts = ["subset"]
+emoji_fonts = ["NotoEmoji-Regular.ttf"]
+emoji_scripts = ["subset"]
 code_fonts = ["mplus-1mn-light.ttf", "mplus-1mn-regular.ttf", "mplus-1mn-medium.ttf", "mplus-1mn-bold.ttf"]
 code_scripts = ["ascii", "subset"]
 
@@ -312,6 +314,47 @@ while (fi < num_copy_fonts)
 endloop
 
 fi = 0
+num_emoji_fonts = SizeOf(emoji_fonts)
+while (fi < num_emoji_fonts)
+  emoji_font = emoji_fonts[fi]
+  src_filepath = StrJoin([source_dir, emoji_font], "/")
+  new_basename = ToLower(emoji_font:r)
+  si = 0
+  num_emoji_scripts = SizeOf(emoji_scripts)
+  while (si < num_emoji_scripts)
+    script = emoji_scripts[si]
+    new_filename = new_basename + "-" + script + ".ttf"
+    new_filepath = output_dir + "/" + new_filename
+    Open(src_filepath)
+    SelectAll()
+    # Remove TrueType instructions (i.e., hinting)
+    ClearInstrs()
+    SelectNone()
+
+    SelectAll()
+    SelectFewer(0u00a0,0u21af)
+    SelectFewer(0u24c2)
+    SelectFewer(0u25a0,0u25ff)
+    SelectFewer(0u2611)
+    SelectFewer(0u26aa,0u26ab)
+    SelectFewer(0u2705)
+    SelectFewer(0u2714,0u2716)
+    SelectFewer(0u274c,0u2757)
+    SelectFewer(0u2790,0u1f25f)
+    SelectMore(0u2b50)
+    SelectInvert()
+    Clear()
+    SelectNone()
+
+    Print("Generating " + new_filename + "...")
+    Generate(new_filepath, "", genflags)
+    Close()
+    si = si + 1
+  endloop
+  fi = fi + 1
+endloop
+
+fi = 0
 num_code_fonts = SizeOf(code_fonts)
 while (fi < num_code_fonts)
   code_font = code_fonts[fi]
diff --git a/scripts/subset-fonts.sh b/scripts/subset-fonts.sh
index 18089a95..6f3d2d5c 100755
--- a/scripts/subset-fonts.sh
+++ b/scripts/subset-fonts.sh
@@ -5,6 +5,7 @@ export SOURCE_DATE_EPOCH=$(date -d 2020-01-29T00:00:00 +%s)
 
 MPLUS_VERSION=TESTFLIGHT-063a
 NOTO_VERSION=86b2e553c3e3e4d6614dadd1fa0a7a6dafd74552
+EMOJI_VERSION=16151a2312a1f8a7d79e91789d3cfe24559d61f7
 FONT_AWESOME_VERSION=4.7.0
 SOURCE_DIR=fonts
 BUILD_DIR=../data/fonts
@@ -29,6 +30,13 @@ if [ ! -d noto-$NOTO_VERSION ]; then
   cd ..
 fi
 
+if [ ! -d emoji-$EMOJI_VERSION ]; then
+  mkdir emoji-$EMOJI_VERSION
+  cd emoji-$EMOJI_VERSION
+  curl -Ls -o NotoEmoji.ttf https://github.com/googlefonts/noto-emoji/raw/$EMOJI_VERSION/fonts/NotoEmoji-Regular.ttf
+  cd ..
+fi
+
 if [ ! -d font-awesome-$FONT_AWESOME_VERSION ]; then
   mkdir font-awesome-$FONT_AWESOME_VERSION
   cd font-awesome-$FONT_AWESOME_VERSION
@@ -39,6 +47,7 @@ fi
 cp mplus-$MPLUS_VERSION/mplus-1mn*ttf .
 cp mplus-$MPLUS_VERSION/mplus-1p-regular.ttf .
 cp noto-$NOTO_VERSION/*.ttf .
+cp emoji-$EMOJI_VERSION/*.ttf .
 cp font-awesome-$FONT_AWESOME_VERSION/*.ttf .
 
 cd ..