From 0fbce0480f66a7a63a479b283c92c2d16b6bbe09 Mon Sep 17 00:00:00 2001
From: Vicent Gong <VicentGong@boyaa.com>
Date: Sat, 7 May 2022 14:11:10 +0800
Subject: [PATCH 1/2] Export freetype funciton when build-native-freetype
 feature in

---
 harfbuzz-sys/Cargo.toml | 7 ++++++-
 harfbuzz-sys/src/lib.rs | 4 ++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/harfbuzz-sys/Cargo.toml b/harfbuzz-sys/Cargo.toml
index c2d473dd..16622e69 100644
--- a/harfbuzz-sys/Cargo.toml
+++ b/harfbuzz-sys/Cargo.toml
@@ -34,7 +34,12 @@ foreign-types = "0.3"
 [target.'cfg(any(target_os = "android", all(unix, not(target_vendor = "apple"))))'.dependencies]
 freetype = { version = "0.7", default-features = false }
 
+[dependencies.freetype]
+version = "0.7"
+default-features = false
+optional = true
+
 [features]
 default = ["build-native-harfbuzz", "build-native-freetype"]
 build-native-harfbuzz = ["cc", "pkg-config"]
-build-native-freetype = ["freetype/freetype-sys"]
+build-native-freetype = ["freetype", "freetype/freetype-sys"]
diff --git a/harfbuzz-sys/src/lib.rs b/harfbuzz-sys/src/lib.rs
index fd5f1c93..e98331eb 100644
--- a/harfbuzz-sys/src/lib.rs
+++ b/harfbuzz-sys/src/lib.rs
@@ -1,10 +1,10 @@
-#[cfg(any(target_os = "android", all(unix, not(target_vendor = "apple"))))]
+#[cfg(any(target_os = "android", all(unix, not(target_vendor = "apple")), feature="build-native-freetype"))]
 extern crate freetype;
 
 #[cfg(target_vendor = "apple")]
 pub mod coretext;
 
-#[cfg(any(target_os = "android", all(unix, not(target_vendor = "apple"))))]
+#[cfg(any(target_os = "android", all(unix, not(target_vendor = "apple")), feature="build-native-freetype"))]
 extern "C" {
     pub fn hb_ft_font_create_referenced(face: freetype::freetype::FT_Face) -> *mut hb_font_t;
 }

From f602d913e3a3eb31823436220a7268606ba1b7e1 Mon Sep 17 00:00:00 2001
From: Vicent Gong <VicentGong@boyaa.com>
Date: Sat, 7 May 2022 14:16:51 +0800
Subject: [PATCH 2/2] Export directwrite function on windows

---
 harfbuzz-sys/Cargo.toml         | 4 ++++
 harfbuzz-sys/build.rs           | 4 ++++
 harfbuzz-sys/src/directwrite.rs | 9 +++++++++
 harfbuzz-sys/src/lib.rs         | 3 +++
 4 files changed, 20 insertions(+)
 create mode 100644 harfbuzz-sys/src/directwrite.rs

diff --git a/harfbuzz-sys/Cargo.toml b/harfbuzz-sys/Cargo.toml
index 16622e69..ea9d674e 100644
--- a/harfbuzz-sys/Cargo.toml
+++ b/harfbuzz-sys/Cargo.toml
@@ -31,6 +31,10 @@ core-graphics = "0.22"
 core-text = "19"
 foreign-types = "0.3"
 
+[target.'cfg(target_family = "windows")'.dependencies.winapi]
+version = "0.3"
+features = ["dwrite"]
+
 [target.'cfg(any(target_os = "android", all(unix, not(target_vendor = "apple"))))'.dependencies]
 freetype = { version = "0.7", default-features = false }
 
diff --git a/harfbuzz-sys/build.rs b/harfbuzz-sys/build.rs
index 352e703b..23b552a7 100644
--- a/harfbuzz-sys/build.rs
+++ b/harfbuzz-sys/build.rs
@@ -31,6 +31,10 @@ fn main() {
         cfg.define("HAVE_CORETEXT", "1");
     }
 
+    if target.contains("windows") {
+        cfg.define("HAVE_DIRECTWRITE", "1");
+    }
+
     if target.contains("windows-gnu") {
         cfg.flag("-Wa,-mbig-obj");
     }
diff --git a/harfbuzz-sys/src/directwrite.rs b/harfbuzz-sys/src/directwrite.rs
new file mode 100644
index 00000000..af379be7
--- /dev/null
+++ b/harfbuzz-sys/src/directwrite.rs
@@ -0,0 +1,9 @@
+extern crate winapi;
+
+use hb_face_t;
+
+use self::winapi::um::dwrite::IDWriteFontFace;
+
+extern "C" {
+    pub fn hb_directwrite_face_create(font_face: *mut IDWriteFontFace) -> *mut hb_face_t;
+}
diff --git a/harfbuzz-sys/src/lib.rs b/harfbuzz-sys/src/lib.rs
index e98331eb..63715131 100644
--- a/harfbuzz-sys/src/lib.rs
+++ b/harfbuzz-sys/src/lib.rs
@@ -4,6 +4,9 @@ extern crate freetype;
 #[cfg(target_vendor = "apple")]
 pub mod coretext;
 
+#[cfg(target_family = "windows")]
+pub mod directwrite;
+
 #[cfg(any(target_os = "android", all(unix, not(target_vendor = "apple")), feature="build-native-freetype"))]
 extern "C" {
     pub fn hb_ft_font_create_referenced(face: freetype::freetype::FT_Face) -> *mut hb_font_t;