1 files changed, 21 insertions, 8 deletions
diff --git a/src/texture.rs b/src/texture.rs
index ac2dd63..3b998a8 100644
--- a/src/texture.rs
+++ b/src/texture.rs
@@ -40,14 +40,26 @@ impl ImageFormat {
 	}
 }
 
-type PackError = impl std::fmt::Debug;
+#[derive(Debug, Error)]
+#[error("{:?}", .0)]
+pub struct PackError(PackErrorInternal);
+
+type PackErrorInternal = impl std::fmt::Debug;
 
 #[derive(Error, Debug)]
 pub enum TextureError {
 	#[error("{:?}", .0)]
-	TextureTooLarge(PackError), // use an error with a source
+	TextureTooLarge(
+		#[source]
+		#[from]
+		PackError,
+	),
 	#[error("{}", .0)]
-	BadImage(#[source] DecodingError), // TODO don't export this
+	BadImage(
+		#[source]
+		#[from]
+		DecodingError,
+	), // TODO don't export this
 	#[error("Unexpected Error (this is a bug in alligator_render): {}", .0)]
 	Unexpected(#[source] Box<dyn Error>),
 }
@@ -55,7 +67,7 @@ pub enum TextureError {
 impl From<ImageError> for TextureError {
 	fn from(ie: ImageError) -> Self {
 		match ie {
-			ImageError::Decoding(de) => Self::BadImage(de),
+			ImageError::Decoding(de) => de.into(),
 			_ => Self::Unexpected(Box::new(ie)),
 		}
 	}
@@ -189,11 +201,12 @@ impl TextureAtlas {
 		format: ImageFormat,
 	) -> Result<TextureId, TextureError> {
 		let img = image::load_from_memory_with_format(buf, format.format())?.into_rgba8();
-		let id = TextureId::new();
-		self.packer
-			.pack_own(id, img)
-			.map_err(TextureError::TextureTooLarge)?;
+		Ok(self.pack_rgba8(img)?)
+	}
 
+	pub fn pack_rgba8(&mut self, img: RgbaImage) -> Result<TextureId, PackError> {
+		let id = TextureId::new();
+		self.packer.pack_own(id, img).map_err(PackError)?;
 		Ok(id)
 	}