add api doc to readme

add doc to TS function
update package version
move package dep

README.md

@@ -13,8 +13,31 @@
 > `npm i cquant`
 #### Electron User
 After running the install command make sure to use electron-rebuild to rebuild it for electron, usually it will just download the prebuild.
-## Async!
+### Async!
 This package is real async. You can run multiple task without blocking the main loop
+### API
+``` ts
+  interface Color {
+      R: number;
+      G: number;
+      B: number;
+      count: number;
+  }
+  declare type Palette = Color[];
+  type CallBackFunc = (err: Error | undefined | string, result: Palette) => void;
+
+  function paletteAsync(buffer: Buffer, depth=3, maxColor=5, maxSub=0): Promise<Palette>;
+  /**
+   * 
+   * @param buffer Image Buffer(RGB/RGBA)
+   * @param depth 3 or 4 for RGB/RGBA
+   * @param maxColor Color Amout You want
+   * @param maxSub max subsample for image, 1 for no sub sample,0 for auto, by default it will scale to size of `1000x1000`
+   * @param callback callback with err and result
+   */
+  function paletteAsync(buffer: Buffer, depth=3, maxColor=5, maxSub=0, callback:CallBackFunc): void;
+
+```
 ### Basic
 ``` js
 const cquant = require('cquant')
@@ -37,7 +60,7 @@ sharp('path/to/image')
   })
 ``` 
 ### With `async.queue`
-> If you have lots of image to process, the best way to do it is using [async](https://www.npmjs.com/package/async).queue for parallel, and control-able
+> If you have lots of image to process, the best way to do it is using [async](https://www.npmjs.com/package/async).queue for parallel, and controllable
 ``` js
 // test/example.js
 const myQueue = async.queue(async (filePath) => {
@@ -80,10 +103,5 @@ Basically you need run this command
 cmake-js -r electron -v 4.0.4 rebuild # for electron
 cmake-js -r node -v 10.0.0 rebuild # for node
 ```
-And of course if you use `electron-prebuild` make sure you add the `cache file` mentioned before
-
-## TODO
-* add para for subsampling
-
 ---
 xVan Turing 2019

cquant.d.ts

@@ -8,13 +8,68 @@ interface Color {
 declare type Palette = Color[];
 declare type CallBackFunc = (err: Error | undefined | string, result: Palette) => void;
 declare type ImageDepth = 3 | 4;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param callback Callback function
+ */
 export declare function paletteAsync(buffer: Buffer, callback: CallBackFunc): void;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param callback Callback function
+ */
 export declare function paletteAsync(buffer: Buffer, depth: ImageDepth, callback: CallBackFunc): void;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param callback Callback function
+ */
 export declare function paletteAsync(buffer: Buffer, depth: ImageDepth, maxColor: number, callback: CallBackFunc): void;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param maxSub max subsample for image, 1 for no sub sample,0 for auto, by default it will scale to size of `1000x1000`
+ * @param callback Callback function
+ */
 export declare function paletteAsync(buffer: Buffer, depth: ImageDepth | undefined, maxColor: number | undefined, maxSub: number | undefined, callback: CallBackFunc): void;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ */
 export declare function paletteAsync(buffer: Buffer): Promise<Palette>;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ */
 export declare function paletteAsync(buffer: Buffer, depth: ImageDepth): Promise<Palette>;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ */
 export declare function paletteAsync(buffer: Buffer, depth: ImageDepth, maxColor: number): Promise<Palette>;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param maxSub max subsample for image, 1 for no sub sample,0 for auto, by default it will scale to size of `1000x1000`
+ */
 export declare function paletteAsync(buffer: Buffer, depth: ImageDepth, maxColor: number, maxSub: number): Promise<Palette>;
+/**
+ *
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param maxSub max subsample for image, 1 for no sub sample,0 for auto, by default it will scale to size of `1000x1000`
+ */
 export declare function paletteAsync(buffer: Buffer, depth: ImageDepth | undefined, maxColor: number | undefined, maxSub: number | undefined): Promise<Palette>;
 export {};

cquant.ts

@@ -8,18 +8,71 @@ interface Color {
 type Palette = Color[];
 type CallBackFunc = (err: Error | undefined | string, result: Palette) => void;
 type ImageDepth = 3 | 4;
-
-
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param callback Callback function
+ */
 export function paletteAsync(buffer: Buffer, callback: CallBackFunc): void;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param callback Callback function
+ */
 export function paletteAsync(buffer: Buffer, depth: ImageDepth, callback: CallBackFunc): void;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param callback Callback function
+ */
 export function paletteAsync(buffer: Buffer, depth: ImageDepth, maxColor: number, callback: CallBackFunc): void;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param maxSub max subsample for image, 1 for no sub sample,0 for auto, by default it will scale to size of `1000x1000`
+ * @param callback Callback function
+ */
 export function paletteAsync(buffer: Buffer, depth: ImageDepth | undefined, maxColor: number | undefined, maxSub: number | undefined, callback: CallBackFunc): void;
-
-export function paletteAsync(buffer: Buffer, ): Promise<Palette>;
-export function paletteAsync(buffer: Buffer, depth: ImageDepth, ): Promise<Palette>;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ */
+export function paletteAsync(buffer: Buffer): Promise<Palette>;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ */
+export function paletteAsync(buffer: Buffer, depth: ImageDepth): Promise<Palette>;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ */
 export function paletteAsync(buffer: Buffer, depth: ImageDepth, maxColor: number): Promise<Palette>;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param maxSub max subsample for image, 1 for no sub sample,0 for auto, by default it will scale to size of `1000x1000`
+ */
 export function paletteAsync(buffer: Buffer, depth: ImageDepth, maxColor: number, maxSub: number): Promise<Palette>;
+/**
+ * 
+ * @param buffer Image Buffer(RGB/RGBA)
+ * @param depth 3 or 4 for RGB/RGBA
+ * @param maxColor Color Amount You want
+ * @param maxSub max subsample for image, 1 for no sub sample,0 for auto, by default it will scale to size of `1000x1000`
+ */
 export function paletteAsync(buffer: Buffer, depth: ImageDepth | undefined, maxColor: number | undefined, maxSub: number | undefined): Promise<Palette>;
+
 export function paletteAsync() {
   const [buffer, depth = 3, maxColor = 5, maxSub = 0, callback = null] = arguments
   if (arguments.length < 1 || buffer == null) {

package.json

@@ -1,15 +1,17 @@
 {
   "name": "cquant",
-  "version": "0.0.21",
+  "version": "0.0.22",
   "description": "A fast and native image palette generator",
   "main": "cquant.js",
   "types": "./cquant.d.ts",
   "scripts": {
     "install": "prebuild-install || cmake-js rebuild",
     "rebuild": "cmake-js rebuild",
-    "test": "node ./test/test.js && node ./test/api-test.js && node ./test/perf.js && node ./script/build-deploy.js"
+    "test": "node ./test/test.js && node ./test/api-test.js && node ./test/perf.js && node ./script/build-deploy.js",
+    "build": "tsc --build"
   },
   "keywords": [
+    "image-palette",
     "color-quant",
     "cquant",
     "palette",
@@ -26,8 +28,6 @@
   "dependencies": {
     "async": "^2.6.1",
     "bindings": "^1.3.1",
-    "image-palette": "^2.1.0",
-    "image-pixels": "^2.2.2",
     "node-addon-api": "^1.6.2",
     "prebuild-install": "^5.2.2"
   },
@@ -36,6 +36,8 @@
     "cmake-js": "^4.0.1",
     "prebuild": "^8.1.2",
     "typescript": "^3.3.3",
-    "which": "^1.3.1"
+    "which": "^1.3.1",
+    "image-palette": "^2.1.0",
+    "image-pixels": "^2.2.2"
   }
 }