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font/coretext: cached fonts uses unmanaged arraylist

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This commit is contained in:
Mitchell Hashimoto
2024-06-22 20:56:23 -07:00
parent 2607446235
commit 3b36dbb53e
1 changed files with 14 additions and 21 deletions
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35
src/font/shaper/coretext.zig
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@ -57,7 +57,7 @@ pub const Shaper = struct {
///
/// Fonts are cached as attribute dictionaries to be applied directly to
/// attributed strings.
cached_fonts: std.ArrayList(?*macos.foundation.Dictionary),
cached_fonts: std.ArrayListUnmanaged(?*macos.foundation.Dictionary),
/// The list of CoreFoundation objects to release on the dedicated
/// release thread. This is built up over the course of shaping and
@ -220,9 +220,6 @@ pub const Shaper = struct {
};
errdefer writing_direction.release();
const cached_fonts = std.ArrayList(?*macos.foundation.Dictionary).init(alloc);
errdefer cached_fonts.deinit();
// Create the CF release thread.
var cf_release_thread = try alloc.create(CFReleaseThread);
errdefer alloc.destroy(cf_release_thread);
@ -243,7 +240,7 @@ pub const Shaper = struct {
.run_state = run_state,
.features = feats,
.writing_direction = writing_direction,
.cached_fonts = cached_fonts,
.cached_fonts = .{},
.cf_release_pool = .{},
.cf_release_thread = cf_release_thread,
.cf_release_thr = cf_release_thr,
@ -256,8 +253,12 @@ pub const Shaper = struct {
self.features.deinit();
self.writing_direction.release();
self.releaseCachedFonts();
self.cached_fonts.deinit();
{
for (self.cached_fonts.items) |ft| {
if (ft) |f| f.release();
}
self.cached_fonts.deinit(self.alloc);
}
if (self.cf_release_pool.items.len > 0) {
for (self.cf_release_pool.items) |ref| macos.foundation.CFRelease(ref);
@ -282,15 +283,6 @@ pub const Shaper = struct {
self.alloc.destroy(self.cf_release_thread);
}
/// Release all cached fonts.
pub fn releaseCachedFonts(self: *Shaper) void {
for (self.cached_fonts.items) |ft| {
if (ft) |f| {
f.release();
}
}
}
pub fn endFrame(self: *Shaper) void {
if (self.cf_release_pool.items.len == 0) return;
@ -497,16 +489,18 @@ pub const Shaper = struct {
) !*macos.foundation.Dictionary {
const index_int = index.int();
// The cached fonts are indexed directly by the font index, since
// this number is usually low. Therefore, we set any index we haven't
// seen to null.
if (self.cached_fonts.items.len <= index_int) {
try self.cached_fonts.ensureTotalCapacity(index_int + 1);
try self.cached_fonts.ensureTotalCapacity(self.alloc, index_int + 1);
while (self.cached_fonts.items.len <= index_int) {
self.cached_fonts.appendAssumeCapacity(null);
}
}
if (self.cached_fonts.items[index_int]) |cached| {
return cached;
}
// If we have it, return the cached attr dict.
if (self.cached_fonts.items[index_int]) |cached| return cached;
// Features dictionary, font descriptor, font
try self.cf_release_pool.ensureUnusedCapacity(self.alloc, 3);
@ -560,7 +554,6 @@ pub const Shaper = struct {
};
self.cached_fonts.items[index_int] = attr_dict;
return attr_dict;
}