Add vtf package

.gitignore

@@ -6,4 +6,5 @@
 dist
 node_modules
 out
+target
 tsconfig.tsbuildinfo

Cargo.toml

@@ -0,0 +1,6 @@
+[workspace]
+members = ["packages/vtf"]
+resolver = "2"
+
+[profile.release]
+opt-level = 3

packages/vtf/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+name = "vtf"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib", "rlib"]
+
+[dependencies]
+bincode = { version = "2.0.0-rc.3", features = ["derive", "serde"] }
+texpresso = "2.0.1"
+wasm-bindgen = "0.2.95"
+web-sys = { version = "0.3.74", features = ["CanvasRenderingContext2d", "ImageData"] }

packages/vtf/package.json

@@ -0,0 +1,12 @@
+{
+    "name": "vtf",
+    "main": "./pkg/vtf.js",
+    "types": "./pkg/vtf.d.ts",
+    "files": [
+        "pkg"
+    ],
+    "scripts": {
+        "dev": "cargo watch -- wasm-pack build --dev --target web",
+        "build": "wasm-pack build --release --target web"
+    }
+}

packages/vtf/rustfmt.toml

@@ -0,0 +1 @@
+max_width = 180

packages/vtf/src/lib.rs

@@ -0,0 +1,16 @@
+use vtf::{VTFData, VTFError, VTF};
+use wasm_bindgen::{prelude::wasm_bindgen, Clamped};
+use web_sys::{CanvasRenderingContext2d, ImageData};
+
+pub mod vtf;
+
+#[wasm_bindgen]
+impl VTF {
+    #[wasm_bindgen(js_name = "putImageData")]
+    pub fn put_image_data(self, context: &CanvasRenderingContext2d, mipmap_index: usize, frame_index: usize) -> Result<(), VTFError> {
+        let VTFData { width, height, rgba } = self.extract(mipmap_index, frame_index)?;
+        let data = ImageData::new_with_u8_clamped_array_and_sh(Clamped(&rgba), width as u32, height as u32).unwrap();
+        context.put_image_data(&data, 0.0, 0.0).unwrap();
+        Ok(())
+    }
+}