add bold glyph rendering in freetype2

koreader · Jan 22, 2014 · f35cbdf · f35cbdf
1 parent efebd24
commit f35cbdf
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/ffi/freetype.lua b/ffi/freetype.lua
@@ -27,9 +27,10 @@ function FTFace_mt.__index:checkGlyph(char)
 	end
 end
 
-function FTFace_mt.__index:renderGlyph(char, bgcolor, fgcolor)
+function FTFace_mt.__index:renderGlyph(char, bgcolor, fgcolor, bold)
 	assert(ft2.FT_Load_Char(self, char, ft2.FT_LOAD_RENDER) == 0, "freetype error")
 
+	if bold then ft2.FT_GlyphSlot_Embolden(self.glyph) end
 	local bitmap = self.glyph.bitmap
 	local glyph = {
 		bb = Blitbuffer.new(bitmap.width, bitmap.rows),

diff --git a/ffi/freetype_h.lua b/ffi/freetype_h.lua
@@ -229,4 +229,5 @@ int FT_Get_Kerning(struct FT_FaceRec_ *, unsigned int, unsigned int, unsigned in
 static const int FT_LOAD_RENDER = 4;
 static const int FT_FACE_FLAG_KERNING = 64;
 static const int FT_KERNING_DEFAULT = 0;
+void FT_GlyphSlot_Embolden(FT_GlyphSlot slot);
 ]]