mirrors/ghostty
1
0
Fork 0
mirror of https://github.com/ghostty-org/ghostty.git synced 2025-10-06 09:56:34 +00:00
Code Issues Packages Projects Releases Wiki Activity

shaper/coretext: use pointer address for cache comparison

Browse Source
This commit is contained in:
Mitchell Hashimoto
2024-07-18 18:46:09 -07:00
parent 12e8d96b1a
commit f4c26dfaf5
1 changed files with 20 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/font/shaper/coretext.zig
View File

@@ -61,7 +61,7 @@ pub const Shaper = struct {
/// The grid that our cached fonts correspond to.
/// If the grid changes then we need to reset our cache.
cached_font_grid: ?*font.SharedGrid,
cached_font_grid: usize,
/// The list of CoreFoundation objects to release on the dedicated
/// release thread. This is built up over the course of shaping and
@@ -245,7 +245,7 @@ pub const Shaper = struct {
.features = feats,
.writing_direction = writing_direction,
.cached_fonts = .{},
.cached_font_grid = null,
.cached_font_grid = 0,
.cf_release_pool = .{},
.cf_release_thread = cf_release_thread,
.cf_release_thr = cf_release_thr,
@@ -494,20 +494,26 @@ pub const Shaper = struct {
) !*macos.foundation.Dictionary {
// If this grid doesn't match the one we've cached fonts for,
// then we reset the cache list since it's no longer valid.
if (grid != self.cached_font_grid) {
// Put all the currently cached fonts in to
// the release pool before clearing the list.
try self.cf_release_pool.ensureUnusedCapacity(
self.alloc,
self.cached_fonts.items.len,
);
for (self.cached_fonts.items) |ft| {
if (ft) |f| self.cf_release_pool.appendAssumeCapacity(f);
// We use an intFromPtr rather than direct pointer comparison
// because we don't want anyone to inadvertenly use the pointer.
const grid_id: usize = @intFromPtr(grid);
if (grid_id != self.cached_font_grid) {
if (self.cached_font_grid > 0) {
// Put all the currently cached fonts in to
// the release pool before clearing the list.
try self.cf_release_pool.ensureUnusedCapacity(
self.alloc,
self.cached_fonts.items.len,
);
for (self.cached_fonts.items) |ft| {
if (ft) |f| {
self.cf_release_pool.appendAssumeCapacity(f);
}
}
self.cached_fonts.clearRetainingCapacity();
}
self.cached_fonts.clearRetainingCapacity();
self.cached_font_grid = grid;
self.cached_font_grid = grid_id;
}
const index_int = index.int();