From bcc93afc0888102247cf4a8435475e80dc1780e2 Mon Sep 17 00:00:00 2001
From: Daniel Rosenwasser <Daniel.Rosenwasser@microsoft.com>
Date: Wed, 30 Aug 2017 16:20:35 -0700
Subject: [PATCH] Added type declarations for 'jpeg-js'.

---
 types/jpeg-js/index.d.ts       | 18 ++++++++++++++++++
 types/jpeg-js/jpeg-js-tests.ts | 17 +++++++++++++++++
 types/jpeg-js/tsconfig.json    | 22 ++++++++++++++++++++++
 types/jpeg-js/tslint.json      |  1 +
 4 files changed, 58 insertions(+)
 create mode 100644 types/jpeg-js/index.d.ts
 create mode 100644 types/jpeg-js/jpeg-js-tests.ts
 create mode 100644 types/jpeg-js/tsconfig.json
 create mode 100644 types/jpeg-js/tslint.json

diff --git a/types/jpeg-js/index.d.ts b/types/jpeg-js/index.d.ts
new file mode 100644
index 0000000000..b3525b5449
--- /dev/null
+++ b/types/jpeg-js/index.d.ts
@@ -0,0 +1,18 @@
+// Type definitions for jpeg-js 0.3
+// Project: https://github.com/eugeneware/jpeg-js#readme
+// Definitions by: Daniel Rosenwasser <https://github.com/DanielRosenwasser>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/// <reference types="node" />
+
+export interface RawImageData<D extends Uint8Array> {
+    data: D;
+    width: number;
+    height: number;
+}
+
+export function decode(jpegData: ArrayLike<number> | Iterable<number> | ArrayBuffer, useTypedArray: true): RawImageData<Uint8Array>;
+export function decode(jpegData: ArrayLike<number> | Iterable<number> | ArrayBuffer, useTypedArray?: false): RawImageData<Buffer>;
+export function decode(jpegData: ArrayLike<number> | Iterable<number> | ArrayBuffer, useTypedArray: boolean): RawImageData<Uint8Array | Buffer>;
+
+export function encode(imgData: RawImageData<Uint8Array | Buffer>, qu?: number): RawImageData<Buffer>;
diff --git a/types/jpeg-js/jpeg-js-tests.ts b/types/jpeg-js/jpeg-js-tests.ts
new file mode 100644
index 0000000000..9b66878e5d
--- /dev/null
+++ b/types/jpeg-js/jpeg-js-tests.ts
@@ -0,0 +1,17 @@
+/// <reference types="node" />
+
+import fs = require("fs");
+import jpeg = require("jpeg-js");
+
+const x = fs.readFileSync("hello.jpg");
+const decoded = jpeg.decode(x, true);
+
+const { width, height } = decoded;
+
+width;          // $ExpectType number
+height;         // $ExpectType number
+decoded.data;   // $ExpectType Uint8Array
+
+fs.writeFileSync("re-encoded.jpg", jpeg.encode({
+    width, height, data: decoded.data
+}, 50));
diff --git a/types/jpeg-js/tsconfig.json b/types/jpeg-js/tsconfig.json
new file mode 100644
index 0000000000..1e3c116f4f
--- /dev/null
+++ b/types/jpeg-js/tsconfig.json
@@ -0,0 +1,22 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es2015"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "jpeg-js-tests.ts"
+    ]
+}
diff --git a/types/jpeg-js/tslint.json b/types/jpeg-js/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/jpeg-js/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }