#zlib library
importScripts('wvnc_asm.js')
api = {}
resolution = undefined
#frame_buffer = undefined
Module.onRuntimeInitialized = () ->
    api =
    {
        createBuffer: Module.cwrap('create_buffer', 'number', ['number', 'number']),
        destroyBuffer: Module.cwrap('destroy_buffer', '', ['number']),
        updateBuffer: Module.cwrap("update", 'number', ['number', 'number', 'number', 'number', 'number', 'number']),
        decodeBuffer: Module.cwrap("decode",'number', ['number', 'number', 'number','number'] )
    }

onmessage = (e) ->
    if e.data.depth
        resolution = e.data
        #api.destroyBuffer frame_buffer if frame_buffer
        #frame_buffer = api.createBuffer resolution.w * resolution.h * 4
    #else if e.data.cleanup
    #    api.destroyBuffer frame_buffer if frame_buffer
    else
        datain = new Uint8Array e.data
        x = datain[1] | (datain[2] << 8)
        y = datain[3] | (datain[4] << 8)
        w = datain[5] | (datain[6] << 8)
        h = datain[7] | (datain[8] << 8)
        flag = datain[9]
        p = api.createBuffer datain.length
        Module.HEAP8.set datain, p
        size = w * h * 4
        po = api.decodeBuffer p, datain.length, resolution.depth, size
        #api.updateBuffer frame_buffer, p, datain.length, resolution.w, resolution.h, resolution.depth
        # create buffer array and send back to main
        dataout = new Uint8Array Module.HEAP8.buffer, po, size
        # console.log dataout
        msg = {}
        tmp = new Uint8Array size
        tmp.set dataout, 0
        msg.buffer = tmp.buffer
        msg.x = x
        msg.y = y
        msg.w = w
        msg.h = h
        postMessage msg, [msg.buffer]
        api.destroyBuffer p
        if flag isnt 0x0 or resolution.depth isnt 32
            api.destroyBuffer po