Vendor dependencies for 0.3.0 release

vendor/ktx2/src/error.rs

@@ -0,0 +1,31 @@
+use core::fmt;
+#[cfg(feature = "std")]
+use std::error::Error;
+
+/// Error, that happend when data doesn't satisfy expected parameters.
+#[derive(Debug)]
+#[non_exhaustive]
+pub enum ParseError {
+    /// Unexpected magic numbers
+    BadMagic,
+    /// Zero pixel width
+    ZeroWidth,
+    /// Zero face count
+    ZeroFaceCount,
+    /// Unexpected end of buffer
+    UnexpectedEnd,
+}
+
+#[cfg(feature = "std")]
+impl Error for ParseError {}
+
+impl fmt::Display for ParseError {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        match &self {
+            ParseError::BadMagic => f.pad("unexpected magic numbers"),
+            ParseError::ZeroWidth => f.pad("zero pixel width"),
+            ParseError::ZeroFaceCount => f.pad("zero face count"),
+            ParseError::UnexpectedEnd => f.pad("unexpected end of buffer"),
+        }
+    }
+}