polish 1.1.0, add HISTORY.md, poke #9

HISTORY.md

@@ -0,0 +1,25 @@
+History
+-------
+
+### 2.0.0 ????-??-??
+- Transparency quant support (like pornel/pngquant, png8)
+
+### 1.2.0 2015-??-??
+- Ordered dithering (#10) kernels:, wiki:
+- Half-toning?
+- Fix transparent bg when dithering (#7)
+- ~~CIEDE2000 color-diff option~~ sooooo sloooow (see ciede2000 branch)
+
+### 1.1.0 (2015-02-03)
+- Caching options and perf improvements
+
+### 1.0.0 (2015-01-27)
+- Any size output palette
+- Multi-image, optimal palettes
+- Predefined, reducible palettes
+- Palette sorting by hue/sat/lum
+- Various input formats: <img>,<canvas>,ImageData,pixel-array
+- Indexed or Uint8Array image reduction
+- Error-diffusion dithering (multi-kernel)
+- Dithering strength option
+- Browser, CommonJS, Node, component.io support

README.md

@@ -35,6 +35,8 @@ var opts = {
     dithSerp: false,    // enable serpentine pattern dithering
     palette: [],        // a predefined palette to start with in r,g,b tuple format: [[r,g,b],[r,g,b]...]
     reIndex: false,     // affects predefined palettes only. if true, allows compacting of sparsed palette once target palette size is reached. also enables palette sorting.
+    useCache: true,     // enables caching for perf usually, but can reduce perf in some cases, like pre-def palettes
+    cacheFreq: 10,      // min color occurance count needed to qualify for caching
 };
 
 var q = new RgbQuant(opts);

component.json

@@ -1,7 +1,7 @@
 {
   "name": "rgbquant",
   "repository": "leeoniya/RgbQuant.js",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "dependencies": {
   },
   "main": "src/rgbquant.js",

demo/fixedpalette.html

@@ -140,6 +140,7 @@
 			reIndex: true,
 			dithKern: "FloydSteinberg",
 			dithDelta: 0.05,
+			useCache: false,
 		});
 
 		var rgb6bit32 = [];

package.json

@@ -3,7 +3,7 @@
   "description": "color quantization lib",
   "homepage": "http://o-0.me/RgbQuant/",
   "author": "Leon Sorokin <[email protected]>",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "main": "src/rgbquant.js",
   "repository": {
     "type": "git",

src/rgbquant.js

@@ -56,7 +56,7 @@
 		this.i32rgb = {};
 		// enable color caching (also incurs overhead of cache misses and cache building)
 		this.useCache = opts.useCache !== false;
-		// max number of color-mappings to cache
+		// min color occurance count needed to qualify for caching
 		this.cacheFreq = opts.cacheFreq || 10;
 		// allows pre-defined palettes to be re-indexed (enabling palette compacting and sorting)
 		this.reIndex = opts.reIndex || this.idxrgb.length == 0;