Changed gradient::Packed to be repr(C) for direct gpu upload.

graphics/src/gradient.rs

@@ -116,13 +116,17 @@ impl Linear {
         data[42] = self.end.x;
         data[43] = self.end.y;
 
-        Packed { data }
+        Packed(data)
     }
 }
 
 /// Packed [`Gradient`] data for use in shader code.
-#[derive(Debug)]
-pub struct Packed {
-    /// The packed [`Gradient`] data.
-    pub data: [f32; 44],
+#[derive(Debug, Copy, Clone, PartialEq)]
+#[repr(C)]
+pub struct Packed([f32; 44]);
+
+impl From<[f32; 44]> for Packed {
+    fn from(value: [f32; 44]) -> Self {
+        Self(value)
+    }
 }

graphics/src/primitive.rs

@@ -4,6 +4,7 @@ use crate::core::image;
 use crate::core::svg;
 use crate::core::text;
 use crate::core::{Background, Color, Font, Rectangle, Size, Vector};
+use crate::gradient;
 
 use bytemuck::{Pod, Zeroable};
 use std::sync::Arc;
@@ -258,7 +259,7 @@ pub struct GradientVertex2D {
     pub position: [f32; 2],
 
     /// The packed vertex data of the gradient.
-    pub gradient: [f32; 44],
+    pub gradient: gradient::Packed,
 }
 
 #[allow(unsafe_code)]