1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 | 1 1 164 164 164 164 162 5757 164 1 | // Copyright (c) 2012 Kuba Niegowski // // Permission is hereby granted, free of charge, to any person obtaining a copy // of this software and associated documentation files (the "Software"), to deal // in the Software without restriction, including without limitation the rights // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell // copies of the Software, and to permit persons to whom the Software is // furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN // THE SOFTWARE. 'use strict'; var util = require('util'), ChunkStream = require('./chunkstream'), Filter = require('./filter'); var FilterAsync = module.exports = function(width, height, Bpp, depth, interlace, options) { ChunkStream.call(this); var buffers = []; var that = this; this._filter = new Filter(width, height, Bpp, depth, interlace, options, { read: this.read.bind(this), complete: function(width, height) { that.emit('complete', Buffer.concat(buffers), width, height) }, write: function(buffer) { buffers.push(buffer); } }); this._filter.start(); }; util.inherits(FilterAsync, ChunkStream); |