Implement texture filtering options

core/src/image.rs

@@ -5,11 +5,31 @@ use std::hash::{Hash, Hasher as _};
 use std::path::PathBuf;
 use std::sync::Arc;
 
+/// Image filter method
+#[derive(Default, Debug, Clone, Copy, PartialEq, Eq, Hash)]
+pub enum FilterMethod {
+    /// Bilinear interpolation
+    #[default]
+    Linear,
+    /// Nearest Neighbor 
+    Nearest,
+}
+
+/// Texture filter settings
+#[derive(Default, Debug, Clone, PartialEq, Eq, Hash)]
+pub struct TextureFilter {
+    /// Filter for scaling the image down.
+    pub min: FilterMethod,
+    /// Filter for scaling the image up.
+    pub mag: FilterMethod,
+}
+
 /// A handle of some image data.
 #[derive(Debug, Clone, PartialEq, Eq)]
 pub struct Handle {
     id: u64,
     data: Data,
+    filter: TextureFilter,
 }
 
 impl Handle {
@@ -56,6 +76,7 @@ impl Handle {
         Handle {
             id: hasher.finish(),
             data,
+            filter: TextureFilter::default(),
         }
     }
 
@@ -68,6 +89,17 @@ impl Handle {
     pub fn data(&self) -> &Data {
         &self.data
     }
+
+    /// Returns a reference to the [`TextureFilter`].
+    pub fn filter(&self) -> &TextureFilter {
+        &self.filter
+    }
+
+    /// Sets the texture filtering methods.
+    pub fn set_filter(mut self, filter: TextureFilter) -> Self {
+        self.filter = filter;
+        self
+    }
 }
 
 impl<T> From<T> for Handle