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//"use strict";
// Utilities for browser environments
mergeInto(LibraryManager.library, {
$Browser__postset: 'Module["requestFullScreen"] = function() { Browser.requestFullScreen() };\n', // export requestFullScreen
$Browser: {
mainLoop: {
scheduler: null,
paused: false
},
pointerLock: false,
moduleContextCreatedCallbacks: [],
createContext: function(canvas, useWebGL, setInModule) {
#if !USE_TYPED_ARRAYS
if (useWebGL) {
Module.print('(USE_TYPED_ARRAYS needs to be enabled for WebGL)');
return null;
}
#endif
try {
var ctx = canvas.getContext(useWebGL ? 'experimental-webgl' : '2d');
if (!ctx) throw ':(';
} catch (e) {
Module.print('Could not create canvas - ' + e);
return null;
}
if (useWebGL) {
#if GL_DEBUG
// Useful to debug native webgl apps: var Module = { printErr: function(x) { console.log(x) } };
var tempCtx = ctx;
var wrapper = {};
for (var prop in tempCtx) {
(function(prop) {
switch (typeof tempCtx[prop]) {
case 'function': {
wrapper[prop] = function() {
if (GL.debug) {
var printArgs = Array.prototype.slice.call(arguments).map(Runtime.prettyPrint);
console.log('[gl_f:' + prop + ':' + printArgs + ']');
}
var ret = tempCtx[prop].apply(tempCtx, arguments);
if (GL.debug && typeof ret != 'undefined') {
console.log('[ gl:' + prop + ':return:' + Runtime.prettyPrint(ret) + ']');
}
return ret;
}
break;
}
case 'number': case 'string': {
wrapper.__defineGetter__(prop, function() {
//console.log('[gl_g:' + prop + ':' + tempCtx[prop] + ']');
return tempCtx[prop];
});
wrapper.__defineSetter__(prop, function(value) {
if (GL.debug) {
console.log('[gl_s:' + prop + ':' + value + ']');
}
tempCtx[prop] = value;
});
break;
}
}
})(prop);
}
ctx = wrapper;
#endif
// Set the background of the WebGL canvas to black
canvas.style.backgroundColor = "black";
}
if (setInModule) {
Module.ctx = ctx;
Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() });
}
return ctx;
},
requestFullScreen: function() {
var canvas = Module.canvas;
function fullScreenChange() {
if (document['webkitFullScreenElement'] === canvas ||
document['mozFullScreenElement'] === canvas ||
document['fullScreenElement'] === canvas) {
canvas.requestPointerLock = canvas['requestPointerLock'] ||
canvas['mozRequestPointerLock'] ||
canvas['webkitRequestPointerLock'];
canvas.requestPointerLock();
}
}
document.addEventListener('fullscreenchange', fullScreenChange, false);
document.addEventListener('mozfullscreenchange', fullScreenChange, false);
document.addEventListener('webkitfullscreenchange', fullScreenChange, false);
function pointerLockChange() {
Browser.pointerLock = document['pointerLockElement'] === canvas ||
document['mozPointerLockElement'] === canvas ||
document['webkitPointerLockElement'] === canvas;
}
document.addEventListener('pointerlockchange', pointerLockChange, false);
document.addEventListener('mozpointerlockchange', pointerLockChange, false);
document.addEventListener('webkitpointerlockchange', pointerLockChange, false);
canvas.requestFullScreen = canvas['requestFullScreen'] ||
canvas['mozRequestFullScreen'] ||
(canvas['webkitRequestFullScreen'] ? function() { canvas['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null);
canvas.requestFullScreen();
},
requestAnimationFrame: function(func) {
if (!window.requestAnimationFrame) {
window.requestAnimationFrame = window['requestAnimationFrame'] ||
window['mozRequestAnimationFrame'] ||
window['webkitRequestAnimationFrame'] ||
window['msRequestAnimationFrame'] ||
window['oRequestAnimationFrame'] ||
window['setTimeout'];
}
window.requestAnimationFrame(func);
},
getMovementX: function(delta, event) {
if (!Browser.pointerLock) return delta;
return event['movementX'] ||
event['mozMovementX'] ||
event['webkitMovementX'] ||
0; // delta;
},
getMovementY: function(delta, event) {
if (!Browser.pointerLock) return delta;
return event['movementY'] ||
event['mozMovementY'] ||
event['webkitMovementY'] ||
0; // delta;
},
},
emscripten_async_run_script__deps: ['emscripten_run_script'],
emscripten_async_run_script: function(script, millis) {
Module['noExitRuntime'] = true;
// TODO: cache these to avoid generating garbage
setTimeout(function() {
_emscripten_run_script(script);
}, millis);
},
emscripten_set_main_loop: function(func, fps) {
Module['noExitRuntime'] = true;
var jsFunc = FUNCTION_TABLE[func];
var wrapper = function() {
if (Browser.mainLoop.paused) return;
jsFunc();
Browser.mainLoop.scheduler();
}
if (fps && fps > 0) {
Browser.mainLoop.scheduler = function() {
setTimeout(wrapper, 1000/fps); // doing this each time means that on exception, we stop
}
} else {
Browser.mainLoop.scheduler = function() {
Browser.requestAnimationFrame(wrapper);
}
}
Browser.mainLoop.scheduler();
},
emscripten_cancel_main_loop: function(func) {
Browser.mainLoop.scheduler = null;
Browser.mainLoop.paused = true;
},
emscripten_pause_main_loop: function(func) {
Browser.mainLoop.paused = true;
},
emscripten_resume_main_loop: function(func) {
Browser.mainLoop.paused = false;
Browser.mainLoop.scheduler();
},
emscripten_async_call: function(func, millis) {
Module['noExitRuntime'] = true;
var asyncCall = Runtime.getFuncWrapper(func);
if (millis >= 0) {
setTimeout(asyncCall, millis);
} else {
Browser.requestAnimationFrame(asyncCall);
}
}
});
/* Useful stuff for browser debugging
function slowLog(label, text) {
if (!slowLog.labels) slowLog.labels = {};
if (!slowLog.labels[label]) slowLog.labels[label] = 0;
var now = Date.now();
if (now - slowLog.labels[label] > 1000) {
Module.print(label + ': ' + text);
slowLog.labels[label] = now;
}
}
*/
|
