Gecko11.0 ArrayBuffer发送和二进制数据已经实施的支持。
connection = new WebSocket('ws://localhost:1740');
connection.binaryType = "arraybuffer";
connection.onopen = onopen;
connection.onmessage = onmessage;
connection.onclose = onclose;
connection.onerror = onerror;
发送二进制数据:
function sendphoto() {
imagedata = context.getImageData(0, 0, imagewidth,imageheight);
var canvaspixelarray = imagedata.data;
var canvaspixellen = canvaspixelarray.length;
var bytearray = new Uint8Array(canvaspixellen);
for (var i=0;i<canvaspixellen;++i) {
bytearray[i] = canvaspixelarray[i];
}
connection.send(bytearray.buffer);
context.fillStyle = '#ffffff';
context.fillRect(0, 0, imagewidth,imageheight);
}
Recieving二进制数据:
if(event.data instanceof ArrayBuffer)
{
var bytearray = new Uint8Array(event.data);
var tempcanvas = document.createElement('canvas');
tempcanvas.height = imageheight;
tempcanvas.width = imagewidth;
var tempcontext = tempcanvas.getContext('2d');
var imgdata = tempcontext.getImageData(0,0,imagewidth,imageheight);
var imgdatalen = imgdata.data.length;
for(var i=8;i<imgdatalen;i++)
{
imgdata.data[i] = bytearray[i];
}
tempcontext.putImageData(imgdata,0,0);
var img = document.createElement('img');
img.height = imageheight;
img.width = imagewidth;
img.src = tempcanvas.toDataURL();
chatdiv.appendChild(img);
chatdiv.innerHTML = chatdiv.innerHTML + "<br />";
}
这是一个问答网站, “叉和参与” 不会发生在这里(请参见http: //stackoverflow.com/faq)。另外,请不要让人们挖掘你的代码 - 包括解释你到底在做什么的最低代码。 – 2012-03-03 20:46:11
我意识到这是前一段时间提出的,所以我只是想补充一点,Firefox 11及以后版本支持二进制ArrayBuffer和Blob。 – SpliFF 2012-07-05 01:35:03