fix windows uft8 and gbk load error alibaba/MNN#3032

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mnnrs"
-version = "0.1.3"
+version = "0.1.4"
 edition = "2021"
 authors = ["baiyue"]
 description = " Rust implementation of mnn, a lightweight neural network inference framework, with separated static library for cross-platform compilation."

README.md

@@ -32,7 +32,7 @@ fn main() -> anyhow::Result<()> {
     let mut out0 = net.get_output_tensor(&ex, "output")?; // 输出
 
     // 预处理
-    let data = [1.460; 1 * 512 * 512 * 1]; // 假设有一些数据
+    let data = vec![1.460; 1 * 512 * 512 * 1]; // 假设有一些数据
     in1.set_data(&data);
 
     // 推理

build.rs

@@ -19,6 +19,8 @@ fn main() {
         .allowlist_function("MNN.*")
         .allowlist_var("MNN.*")
         .allowlist_type("MNN.*")
+        // 忽略无用类型
+        .blocklist_type("_Base")
         // 生成 Rust 代码中的构造函数
         // .opaque_type("std::.*")
         .opaque_type("std::vector")

src/net.rs

@@ -18,19 +18,12 @@ impl Net {
     }
     // 模型加载
     pub fn load_model(&mut self, path: &str) -> anyhow::Result<()> {
-        let c_str = {
-            #[cfg(target_os = "windows")]
-            {
-                let (gbk_bytes, _, _) = encoding_rs::GB18030.encode(path);
-                CString::new(gbk_bytes)?
-            }
-            #[cfg(not(target_os = "windows"))]
-            {
-                CString::new(path)?
-            }
-        };
+        let c_str = CString::new(path)?; // mnn底层支持utf8编码，Windows无需特殊转换
         unsafe {
             self.ptr = MNN_Interpreter_createFromFile(c_str.as_ptr());
+            if self.ptr.is_null() {
+                anyhow::bail!("Failed to load model");
+            }
         }
         Ok(())
     }