From 22167ac608a1d782a178f60ad6d23233f75a8f25 Mon Sep 17 00:00:00 2001
From: Alex Janka <alex@alexjanka.com>
Date: Sat, 16 Nov 2024 10:36:14 +1100
Subject: [PATCH] add OwnedTileSet

---
 agb/src/display/tiled/mod.rs          |  2 +-
 agb/src/display/tiled/vram_manager.rs | 33 +++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/agb/src/display/tiled/mod.rs b/agb/src/display/tiled/mod.rs
index 2d8c614e..10f3524d 100644
--- a/agb/src/display/tiled/mod.rs
+++ b/agb/src/display/tiled/mod.rs
@@ -14,7 +14,7 @@ pub use map::{AffineMap, MapLoan, RegularMap, TiledMap};
 pub use tiled0::Tiled0;
 pub use tiled1::Tiled1;
 pub use tiled2::Tiled2;
-pub use vram_manager::{DynamicTile, TileFormat, TileIndex, TileSet, VRamManager};
+pub use vram_manager::{DynamicTile, OwnedTileSet, TileFormat, TileIndex, TileSet, VRamManager};
 
 use map::TRANSPARENT_TILE_INDEX;
 
diff --git a/agb/src/display/tiled/vram_manager.rs b/agb/src/display/tiled/vram_manager.rs
index 4339d56b..b49b6ce5 100644
--- a/agb/src/display/tiled/vram_manager.rs
+++ b/agb/src/display/tiled/vram_manager.rs
@@ -60,6 +60,39 @@ impl<'a> TileSet<'a> {
     fn reference(&self) -> NonNull<[u8]> {
         self.tiles.into()
     }
+
+    pub fn to_owned(&self) -> OwnedTileSet {
+        OwnedTileSet {
+            tiles: self.tiles.to_vec(),
+            format: self.format,
+        }
+    }
+}
+
+pub struct OwnedTileSet {
+    tiles: Vec<u8>,
+    format: TileFormat,
+}
+
+impl OwnedTileSet {
+    pub fn tile_set(&self) -> TileSet<'_> {
+        TileSet {
+            tiles: &self.tiles,
+            format: self.format,
+        }
+    }
+
+    pub fn tiles(&self) -> &[u8] {
+        &self.tiles
+    }
+
+    pub fn tiles_mut(&mut self) -> &mut [u8] {
+        &mut self.tiles
+    }
+
+    pub fn format(&self) -> TileFormat {
+        self.format
+    }
 }
 
 #[derive(Debug, Clone, Copy)]