Add support for colored emojis on Linux/BSD

Fixes #153.

1 files changed, 21 insertions, 0 deletions

diff --git a/font/src/darwin/byte_order.rs b/font/src/darwin/byte_order.rs
index 382caa31..1574cf19 100644
--- a/font/src/darwin/byte_order.rs
+++ b/font/src/darwin/byte_order.rs
@@ -24,6 +24,27 @@ pub const kCGBitmapByteOrder32Host: u32 = kCGBitmapByteOrder32Little;
 pub const kCGBitmapByteOrder32Host: u32 = kCGBitmapByteOrder32Big;
 
 #[cfg(target_endian = "little")]
+pub fn extract_rgba(bytes: &[u8]) -> Vec<u8> {
+    let pixels = bytes.len() / 4;
+    let mut rgb = Vec::with_capacity(pixels * 4);
+
+    for i in 0..pixels {
+        let offset = i * 4;
+        rgb.push(bytes[offset + 2]);
+        rgb.push(bytes[offset + 1]);
+        rgb.push(bytes[offset]);
+        rgb.push(bytes[offset + 3]);
+    }
+
+    rgb
+}
+
+#[cfg(target_endian = "big")]
+pub fn extract_rgba(bytes: Vec<u8>) -> Vec<u8> {
+    bytes
+}
+
+#[cfg(target_endian = "little")]
 pub fn extract_rgb(bytes: &[u8]) -> Vec<u8> {
     let pixels = bytes.len() / 4;
     let mut rgb = Vec::with_capacity(pixels * 3);