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Fix cairo not releasing static resources at program shutdown

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Kovid Goyal 2025-01-29 17:15:48 +05:30
parent 9d9bfc6f26
commit ea54cbf193
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1 changed files with 5 additions and 4 deletions
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9
kitty/freetype.c
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@ -244,9 +244,6 @@ face_apply_scaling(PyObject *f, const FONTS_DATA_HANDLE fg) {
return false;
}
static void
cairo_done_ft_face(void* x) { if (x) FT_Done_Face(x); }
static bool
init_ft_face(Face *self, PyObject *path, int hinting, int hintstyle, long index, FONTS_DATA_HANDLE fg) {
copy_face_metrics(self);
@ -679,6 +676,9 @@ free_cairo(Face *self) {
zero_at_ptr(&self->cairo);
}
static void
cairo_done_ft_face(void* x) { if (x) FT_Done_Face(x); }
static bool
ensure_cairo_resources(Face *self, size_t width, size_t height) {
if (!self->cairo.font) {
@ -692,7 +692,7 @@ ensure_cairo_resources(Face *self, size_t width, size_t height) {
// Sadly cairo does not use FT_Reference_Face https://lists.cairographics.org/archives/cairo/2015-March/026023.html
// so we have to let cairo manage lifetime of the FT_Face
static const cairo_user_data_key_t key;
cairo_status_t status = cairo_font_face_set_user_data(self->cairo.font, &key, self->face, cairo_done_ft_face);
cairo_status_t status = cairo_font_face_set_user_data(self->cairo.font, &key, self->face_for_cairo, cairo_done_ft_face);
if (status) {
FT_Done_Face(self->face_for_cairo); self->face_for_cairo = NULL;
PyErr_Format(PyExc_RuntimeError, "Failed to set cairo font destructor with error: %s", cairo_status_to_string(status));
@ -1341,6 +1341,7 @@ PyTypeObject Face_Type = {
static void
free_freetype(void) {
cairo_debug_reset_static_data();
FT_Done_FreeType(library);
}