Merge pull request #168 from stackgl/166-const-let-and-precheckFramebufferStatus-high-cpu

FIX #166 const let and precheck framebuffer status high cpu

Author: dhritzkiv

binding.gyp

@@ -13,9 +13,9 @@
         'VERSION=1.0.0'
       ],
       'sources': [
-          'src/bindings.cc',
-          'src/webgl.cc',
-          'src/procs.cc'
+          'src/native/bindings.cc',
+          'src/native/webgl.cc',
+          'src/native/procs.cc'
       ],
       'include_dirs': [
         "<!(node -e \"require('nan')\")",

index.js

@@ -1,5 +1,5 @@
 if (typeof WebGLRenderingContext !== 'undefined') {
-  module.exports = require('./browser_index')
+  module.exports = require('./src/javascript/browser-index')
 } else {
-  module.exports = require('./node_index')
+  module.exports = require('./src/javascript/node-index')
 }

node_index.js

@@ -1,17 +1,15 @@
-'use strict'
-
 function createContext (width, height, options) {
   width = width | 0
   height = height | 0
   if (!(width > 0 && height > 0)) {
     return null
   }
 
-  var canvas = document.createElement('canvas')
+  const canvas = document.createElement('canvas')
   if (!canvas) {
     return null
   }
-  var gl
+  let gl
   canvas.width = width
   canvas.height = height
 
@@ -25,24 +23,24 @@ function createContext (width, height, options) {
     }
   }
 
-  var _getExtension = gl.getExtension
-  var extDestroy = {
+  const _getExtension = gl.getExtension
+  const extDestroy = {
     destroy: function () {
-      var loseContext = _getExtension.call(gl, 'WEBGL_lose_context')
+      const loseContext = _getExtension.call(gl, 'WEBGL_lose_context')
       if (loseContext) {
         loseContext.loseContext()
       }
     }
   }
 
-  var extResize = {
+  const extResize = {
     resize: function (w, h) {
       canvas.width = w
       canvas.height = h
     }
   }
 
-  var _supportedExtensions = gl.getSupportedExtensions().slice()
+  const _supportedExtensions = gl.getSupportedExtensions().slice()
   _supportedExtensions.push(
     'STACKGL_destroy_context',
     'STACKGL_resize_drawingbuffer')
@@ -51,7 +49,7 @@ function createContext (width, height, options) {
   }
 
   gl.getExtension = function (extName) {
-    var name = extName.toLowerCase()
+    const name = extName.toLowerCase()
     if (name === 'stackgl_resize_drawingbuffer') {
       return extResize
     }