Merge pull request #134 from jdeseno/filesystem

complete filesystem api

src/sdl2/filesystem.rs

@@ -0,0 +1,44 @@
+use std::str;
+use SdlResult;
+use get_error;
+
+#[allow(non_camel_case_types)]
+pub mod ll {
+    use libc::{c_char};
+
+    extern "C" {
+        pub fn SDL_GetBasePath() -> *c_char;
+        pub fn SDL_GetPrefPath(arg: *c_char, app: *c_char) -> *c_char;
+    }
+}
+
+pub fn get_base_path() -> SdlResult<String> {
+    let result = unsafe {
+        let cstr = ll::SDL_GetBasePath();
+        str::raw::from_c_str(cstr)
+    };
+
+    if result.len() == 0 {
+        Err(get_error())
+    } else {
+        Ok(result)
+    }
+}
+
+pub fn get_pref_path(org: &str, app: &str) -> SdlResult<String> {
+    let result = unsafe {
+        let cstr =
+            org.with_c_str(|org_cstr| {
+            app.with_c_str(|app_cstr| {
+                ll::SDL_GetPrefPath(org_cstr, app_cstr)
+            })});
+        str::raw::from_c_str(cstr)
+    };
+
+    if result.len() == 0 {
+        Err(get_error())
+    } else {
+        Ok(result)
+    }
+}
+

src/sdl2/lib.rs

@@ -21,6 +21,7 @@ pub mod clipboard;
 pub mod cpuinfo;
 pub mod macros;
 pub mod event;
+pub mod filesystem;
 pub mod gesture;
 pub mod touch;
 pub mod joystick;