all FX functions are now safe wrapped and I added the crate to the docs also it is added to the prelude

arduboy-rust/src/library/arduboyfx/drawable_string.rs

@@ -0,0 +1,53 @@
+use core::ffi::{c_char, c_uchar, c_ulong};
+use crate::library::progmem::Pstring;
+
+pub trait DrawableString
+where
+    Self: Sized,
+{
+    fn draw(self);
+}
+impl DrawableString for &[u8] {
+    fn draw(self) {
+        unsafe {
+            arduboyfx_draw_string(self as *const [u8] as *const i8);
+        }
+    }
+}
+impl DrawableString for &str {
+    fn draw(self) {
+        unsafe {
+            arduboyfx_draw_string(self.as_bytes() as *const [u8] as *const i8);
+        }
+    }
+}
+impl<const N: usize> DrawableString for crate::heapless::String<N> {
+    fn draw(self) {
+        unsafe {
+            arduboyfx_draw_string(self.as_bytes() as *const [u8] as *const i8);
+        }
+    }
+}
+impl DrawableString for Pstring {
+    fn draw(self) {
+        unsafe {
+            arduboyfx_draw_string_buffer(self.pointer as *const u8);
+        }
+    }
+}
+impl DrawableString for u32 {
+    fn draw(self) {
+        unsafe {
+            arduboyfx_draw_string_fx(self);
+        }
+    }
+}
+
+extern "C" {
+    #[link_name = "arduboyfx_draw_string_fx"]
+    fn arduboyfx_draw_string_fx(address: c_ulong);
+    #[link_name = "arduboyfx_draw_string_buffer"]
+    fn arduboyfx_draw_string_buffer(buffer: *const c_uchar);
+    #[link_name = "arduboyfx_draw_string"]
+    fn arduboyfx_draw_string(cstr: *const c_char);
+}