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font/freetype: CBDT/CBLC tables imply color

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This commit is contained in:
Mitchell Hashimoto
2024-05-28 20:40:46 -07:00
parent 4daa49fe27
commit adaeffb2b5
2 changed files with 21 additions and 0 deletions
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12
src/font/face/freetype.zig
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@@ -216,6 +216,11 @@ pub const Face = struct {
// sbix table is always true for now
if (self.face.hasSBIX()) return true;
// CBDT/CBLC tables always imply colorized glyphs.
// These are used by Noto.
if (self.face.hasSfntTable(freetype.Tag.init("CBDT"))) return true;
if (self.face.hasSfntTable(freetype.Tag.init("CBLC"))) return true;
// Otherwise, load the glyph and see what format it is in.
self.face.loadGlyph(glyph_id, .{
.render = true,
@@ -698,6 +703,13 @@ test "color emoji" {
_ = try ft_font.renderGlyph(alloc, &atlas, ft_font.glyphIndex('🥸').?, .{});
// Make sure this glyph has color
{
try testing.expect(ft_font.hasColor());
const glyph_id = ft_font.glyphIndex('🥸').?;
try testing.expect(ft_font.isColorGlyph(glyph_id));
}
// resize
{
const glyph = try ft_font.renderGlyph(alloc, &atlas, ft_font.glyphIndex('🥸').?, .{