Files
ghostty/pkg/harfbuzz/shape.zig
Chris Marchesi e8525c0fd9 Update to Zig 0.16.0
This commit represents the majority of the work necessary to upgrade
Ghostty to use Zig 0.16.0.

Key parts:

* In addition to its previous responsibilities, the global state now
  houses state for global I/O implementations and the process
  environment. It is now also utilized in the main application along
  with the C library. Where necessary, global state is isolated from key
  parts of the implementation (e.g., in libghostty subsystems), and it's
  expected that this list will grow.

* We currently manage our own C translation layer where necessary. In
  these cases, cImport has been removed in favor of the new external
  translate-c package. Due to fixes that have needed be made to properly
  translate the dependencies that were swapped out, as mentioned, we
  have had to backport fixes from the current translate-c package (and
  the upstream Arocc dependency). We will host this ourselves until Zig
  0.17.0 is released with these fixes.

* Where necessary (only a small number of cases), some stdlib code from
  0.15.2 (and even from 0.17.0) has been taken, adopted, and vendored in
  lib/compat.

Co-authored-by: Leah Amelia Chen <hi@pluie.me>
2026-07-21 12:35:05 -07:00

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Zig

const std = @import("std");
const c = @import("hb_c");
const Font = @import("font.zig").Font;
const Buffer = @import("buffer.zig").Buffer;
const Feature = @import("common.zig").Feature;
/// Shapes buffer using font turning its Unicode characters content to
/// positioned glyphs. If features is not NULL, it will be used to control
/// the features applied during shaping. If two features have the same tag
/// but overlapping ranges the value of the feature with the higher index
/// takes precedence.
pub fn shape(font: Font, buf: Buffer, features: ?[]const Feature) void {
const hb_feats: [*c]const c.hb_feature_t = feats: {
if (features) |fs| {
if (fs.len > 0) break :feats @ptrCast(fs.ptr);
}
break :feats null;
};
c.hb_shape(
font.handle,
buf.handle,
hb_feats,
if (features) |f| @intCast(f.len) else 0,
);
}