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Merge pull request #2202 from ghostty-org/push-xqxploovxolw

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font/sprite: avoid invalid glyph if unsupported codepoint is attempted
This commit is contained in:
Mitchell Hashimoto
2024-09-05 20:26:41 -07:00
committed by GitHub
parent eec2b1e3e8 c9523a6ee0
commit cc59c5d5d9
1 changed files with 14 additions and 1 deletions
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15
src/font/sprite/Face.zig
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@ -71,8 +71,21 @@ pub fn renderGlyph(
else => |width| self.width * width,
};
// It should be impossible for this to be null and we assert that
// in runtime safety modes but in case it is its not worth memory
// corruption so we return a valid, blank glyph.
const kind = Kind.init(cp) orelse return .{
.width = 0,
.height = 0,
.offset_x = 0,
.offset_y = 0,
.atlas_x = 0,
.atlas_y = 0,
.advance_x = 0,
};
// Safe to ".?" because of the above assertion.
return switch (Kind.init(cp).?) {
return switch (kind) {
.box => box: {
const thickness = switch (cp) {
@intFromEnum(Sprite.cursor_rect),