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| (function(awe) {
var threshold = 98;
var width = 640;
var height = 480;
var video = document.createElement('video');
var last_time = 0;
var tracking_enabled = false, background_video, canvas, ctx, video_stream, detector, raster, param, resultMat, tmp = new Float32Array(16), pov_projection_matrix, pov_projection_matrix2;
function resize_video() { // jsartoolkit specific resize function
if (awe.device_type() == 'android' && navigator.userAgent.match(/firefox/i)) {
// NOTE: This is borken - not quite sure what firefox is doing here 8/
var aspect_ratio = window.innerWidth / window.innerHeight,
h, w;
if (window.innerHeight > window.innerWidth) {
w = window.innerWidth;
h = window.innerHeight / aspect_ratio;
}
else {
h = window.innerHeight;
w = window.innerWidth / aspect_ratio;
}
if (background_video) {
background_video.setAttribute('height', h);
background_video.setAttribute('width', w);
background_video.style.left = '0px';
}
awe.renderer().setSize(w, h);
awe.renderer().domElement.style.left = '0px';
awe.pov().aspect = aspect_ratio;
}
else {
var aspect_ratio = width / height,
h, w;
if (window.innerHeight > window.innerWidth) {
h = window.innerHeight;
w = h * aspect_ratio;
}
else {
w = window.innerWidth;
h = w / aspect_ratio;
}
if (background_video) {
background_video.setAttribute('height', h);
background_video.setAttribute('width', w);
background_video.style.marginLeft = -w/2 + 'px';
background_video.style.left = '50%';
}
awe.renderer().setSize(w, h);
awe.renderer().domElement.style.left = '50%';
awe.renderer().domElement.style.marginLeft = -w/2 + 'px';
awe.pov().aspect = aspect_ratio;
}
awe.pov().updateProjectionMatrix();
if (pov_projection_matrix2) {
awe.pov().projectionMatrix.fromArray(pov_projection_matrix2);
}
awe.scene_needs_rendering = 1;
}
THREE.Matrix4.prototype.setFromArray = function(m){
return this.set(
m[0],m[4],m[8],m[12],
m[1],m[5],m[9],m[13],
m[2],m[6],m[10],m[14],
m[3],m[7],m[11],m[15]
);
};
function copy_matrix(src, dst){
dst[0] = src.m00;
dst[1] = -src.m10;
dst[2] = src.m20;
dst[3] = 0;
dst[4] = src.m02;
dst[5] = -src.m12;
dst[6] = src.m22;
dst[7] = 0;
dst[8] = -src.m01;
dst[9] = src.m11;
dst[10] = -src.m21;
dst[11] = 0;
dst[12] = src.m03;
dst[13] = -src.m13;
dst[14] = src.m23;
dst[15] = 1;
}
function add_ar_events(){
awe.events.add([{
id: 'video_stream',
device_types: {
android: 1,
pc: 1
},
register: function(handler) {
window.addEventListener('gum_ready', handler, false);
},
unregister: function(handler){
window.removeEventListener('gum_ready', handler, false);
},
handler: function(e) {
canvas = document.createElement('canvas');
canvas.id = "ar_canvas";
canvas.width = width/2;
canvas.height = height/2;
canvas.style.display = "none";
document.body.appendChild(canvas);
ctx = canvas.getContext('2d');
raster = new NyARRgbRaster_Canvas2D(canvas);
param = new FLARParam(width/2,height/2);
resultMat = new NyARTransMatResult();
detector = new FLARMultiIdMarkerDetector(param,120);
detector.setContinueMode(true);
param.copyCameraMatrix(tmp,10,10000);
pov_projection_matrix = awe.pov().projectionMatrix.toArray();
awe.pov().projectionMatrix.setFromArray(tmp);
pov_projection_matrix2 = awe.pov().projectionMatrix.toArray();
video_stream = awe.video_stream();
video = video_stream.video_element;
video.width = width;
video.height = height;
background_video = document.createElement('video');
background_video.setAttribute('width', window.innerWidth);
background_video.setAttribute('height', window.innerHeight);
background_video.setAttribute('autoplay', 'true');
background_video.style.position = 'absolute';
background_video.style.left = '0px';
background_video.style.top = '0px';
background_video.style.zIndex = '-1';
container.appendChild(background_video);
awe.util.connect_stream_to_src(video_stream.stream, background_video);
background_video.addEventListener('play', function(){
resize_video();
tracking_enabled = true;
}, false);
}
},
{
id: 'ar_tracking',
device_types: {
pc: 1,
android: 1
},
register: function(handler) {
window.addEventListener('tick', handler, false);
awe.scene_needs_rendering = 1;
},
unregister: function(handler){
window.removeEventListener('tick', handler, false);
},
handler: function(event) {
if (!tracking_enabled) {
return;
}
var video = video_stream.video_element;
if (!video) {
return;
}
if (video.ended) { video.play(); }
if (video.paused) { return; }
if (window.paused) { return; }
if (video.currentTime == last_time) { return; }
last_time = video.currentTime;
try {
ctx.drawImage(video, 0, 0, width/2, height/2);
} catch(e) { /* TODO */ }
canvas.changed = true;
var detected_count = detector.detectMarkerLite(raster, threshold);
var event_data = {};
for (var i=0; i<detected_count; i++) {
var id = detector.getIdMarkerData(i);
var currId = -1;
if (id.packetLength <= 4) {
currId = 0;
for (var j = 0; j < id.packetLength; j++) {
currId = (currId << 8) | id.getPacketData(j);
}
}
detector.getTransformMatrix(i, resultMat);
copy_matrix(Object.asCopy(resultMat), tmp);
event_data[currId] = {
transform: Object.asCopy(tmp)
};
}
var event = new CustomEvent('ar_tracking_marker', { detail: event_data });
window.dispatchEvent(event);
}
},
{
id: 'resize_screen',
device_types: {
pc: 1,
android: 1
},
register: function(handler) {
window.addEventListener('resize', handler, false);
},
unregister: function(handler){
window.removeEventListener('resize', handler, false);
},
handler: function(e) {
resize_video();
}
}]);
}
function remove_ar_events(){
awe.events.delete('ar_tracking');
awe.events.delete('video_stream');
awe.events.delete('resize_screen');
}
awe.plugins.add([{
id: 'jsartoolkit',
auto_register: true,
register: function(plugin_data){
add_ar_events();
awe.setup_stream();
},
unregister: function(plugin_data){
remove_ar_events();
}
}]);
})(window.awe); |
