Add Harfbuzz bridge (#1312)

Author: CraftSpider

Cargo.lock

@@ -22,14 +22,12 @@ links = "freetype2"
 
 [dependencies]
 libc = "0.2"
+tectonic_bridge_png = { path = "../bridge_png", version = "0.0.0-dev.0" }
+tectonic_bridge_flate = { path = "../bridge_flate", version = "0.0.0-dev.0" }
 
 [build-dependencies]
 tectonic_dep_support = { path = "../dep_support", version = "0.0.0-dev.0" }
 
-[dev-dependencies]
-tectonic_bridge_png = { path = "../bridge_png", version = "0.0.0-dev.0" }
-tectonic_bridge_flate = { path = "../bridge_flate", version = "0.0.0-dev.0" }
-
 [package.metadata.internal_dep_versions]
 tectonic_dep_support = "5faf4205bdd3d31101b749fc32857dd746f9e5bc"
 tectonic_bridge_png = "42a1f6a8027b2ef01436be16c6e1bc27918f293f"

crates/bridge_freetype2/Cargo.toml

@@ -17,6 +17,15 @@ use std::{ptr, slice};
 
 mod sys;
 
+/// Import things from our bridge crates to ensure that we actually link with
+/// them.
+mod linkage {
+    #[allow(unused_imports)]
+    use tectonic_bridge_flate as clippyrenamehack1;
+    #[allow(unused_imports)]
+    use tectonic_bridge_png as clippyrenamehack2;
+}
+
 pub use sys::FT_BBox as BBox;
 pub use sys::FT_Fixed as Fixed;
 pub use sys::FT_Glyph_BBox_Mode as BBoxMode;
@@ -610,22 +619,20 @@ impl Drop for Face {
     }
 }
 
+// SAFETY: Functions that are not safe to share across threads (such as FT_Done_Face) are protected
+//         by mutex to ensure they are only called once per thread.
+unsafe impl Send for Face {}
+// SAFETY: Functions that are not safe to share across threads (such as FT_Done_Face) are protected
+//         by mutex to ensure they are only called once per thread.
+unsafe impl Sync for Face {}
+
 #[cfg(test)]
 mod tests {
     use super::*;
     use std::ffi::CString;
     use std::fs;
     use std::path::{Path, PathBuf};
 
-    /// Import things from our bridge crates to ensure that we actually link with
-    /// them.
-    mod linkage {
-        #[allow(unused_imports)]
-        use tectonic_bridge_flate as clippyrenamehack1;
-        #[allow(unused_imports)]
-        use tectonic_bridge_png as clippyrenamehack2;
-    }
-
     fn assets_dir() -> PathBuf {
         Path::new(env!("CARGO_MANIFEST_DIR"))
             .join("../../tests/assets")

crates/bridge_freetype2/src/lib.rs

@@ -22,17 +22,24 @@ links = "harfbuzz"
 exclude = ["/harfbuzz/docs/", "/harfbuzz/perf/", "/harfbuzz/test/"]
 
 [dependencies]
+tectonic_bridge_freetype2 = { path = "../bridge_freetype2", version = "0.0.0-dev.0" }
 tectonic_bridge_graphite2 = { path = "../bridge_graphite2", version = "0.0.0-dev.0" }
+libc = "0.2"
 
 [build-dependencies]
 cc = "^1.0.66"
 tectonic_dep_support = { path = "../dep_support", version = "0.0.0-dev.0" }
 tectonic_cfg_support = { path = "../cfg_support", version = "0.0.0-dev.0" }
 
+[target.'cfg(target_os = "macos")'.dependencies]
+tectonic_mac_core = { path = "../mac_core", version = "0.0.0-dev.0" }
+
 [features]
 external-harfbuzz = []
 
 [package.metadata.internal_dep_versions]
+tectonic_bridge_freetype2 = "2c1ffcd702a662c003bd3d7d0ca4d169784cb6ad"
 tectonic_bridge_graphite2 = "2722731f9e32c6963fe8c8566a201b33672c5c5a"
+tectonic_mac_core = "6932d5f15fec0fb5c219b887bdd11b72641af07a"
 tectonic_dep_support = "5faf4205bdd3d31101b749fc32857dd746f9e5bc"
 tectonic_cfg_support = "thiscommit:aeRoo7oa"