From ab033c1f21f0e3ed6009a35dd1b2612ba363d456 Mon Sep 17 00:00:00 2001
From: Richard Acayan <mailingradian@gmail.com>
Date: Wed, 24 Jul 2024 22:23:46 -0400
Subject: [PATCH] core: graphics: use AtomicPtr

This type is required to implement both the Send and Sync trait.
---
 src/core/graphics.rs | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/core/graphics.rs b/src/core/graphics.rs
index 90d4117..fc30593 100644
--- a/src/core/graphics.rs
+++ b/src/core/graphics.rs
@@ -18,6 +18,7 @@ use std::fs::File;
 use std::io::Read;
 use std::iter;
 use std::ptr;
+use std::sync::atomic::AtomicPtr;
 use xkeysym::Keysym;
 
 fn convert_gray_to_bgrx(mut dest: ImgRefMut<BGRA<u8>>, src: ImgRef<u8>, fg_color: BGR<f32>)
@@ -79,7 +80,7 @@ pub struct Graphics<D: Display> {
     fontbufs: Vec<Vec<u8>>,
     labels: HashMap<Keysym, ImgVec<u8>>,
     sublabels: HashMap<Keysym, ImgVec<u8>>,
-    ft: freetype::FT_Library,
+    ft: AtomicPtr<freetype::FT_LibraryRec_>,
 
     x_scale: f64,
     y_scale: f64,
@@ -206,7 +207,7 @@ impl<D: Display> Graphics<D> {
                 panic!("FreeType error {}", err);
             }
 
-            ft
+            AtomicPtr::new(ft)
         };
 
         /*
@@ -293,7 +294,7 @@ impl<D: Display> Graphics<D> {
 
         unsafe {
             let mut ftface = std::ptr::null_mut();
-            freetype::FT_New_Memory_Face(self.ft,
+            freetype::FT_New_Memory_Face(*self.ft.get_mut(),
                                          fontbuf.as_ptr(),
                                          fontbuf.len() as freetype::FT_Long,
                                          self.fonts[idx].1 as freetype::FT_Long,
@@ -686,7 +687,7 @@ impl<D: Display> Drop for Graphics<D> {
     fn drop(&mut self)
     {
         unsafe {
-            freetype::FT_Done_FreeType(self.ft);
+            freetype::FT_Done_FreeType(*self.ft.get_mut());
         }
     }
 }