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HTML5 start-up overhaul

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- Implement promise-based JS interface for custom HTML page
   integration
 - Add download progress callback
 - Add progress bar and indeterminate spinner to default HTML page
 - Try downloading files multiple times when failing
 - Get rid of godotfs.js
 - Separate steps for engine initialization, game initialization and game
   start
 - Allow multiple games on one HTML page
 - Substitution placeholders only used in .html file
 - Placeholders renamed: $GODOT_BASE => $GODOT_BASENAME,
   $GODOT_TMEM -> $GODOT_TOTAL_MEMORY
 - Emscripten Module is now Engine.RuntimeEnvironment (no longer a global)
This commit is contained in:
Leon Krause 2017-08-13 13:10:04 +02:00
parent b4ad899ef6
commit 4db801aaea
9 changed files with 778 additions and 543 deletions
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386
misc/dist/html/default.html vendored Normal file
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@ -0,0 +1,386 @@
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="" xml:lang="">
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
body {
margin: 0;
border: 0 none;
padding: 0;
text-align: center;
background-color: #222226;
font-family: 'Noto Sans', Arial, sans-serif;
}
/* Godot Engine default theme style
* ================================ */
.godot {
color: #e0e0e0;
background-color: #3b3943;
background-image: linear-gradient(to bottom, #403e48, #35333c);
border: 1px solid #45434e;
box-shadow: 0 0 1px 1px #2f2d35;
}
button.godot {
font-family: 'Droid Sans', Arial, sans-serif; /* override user agent style */
padding: 1px 5px;
background-color: #37353f;
background-image: linear-gradient(to bottom, #413e49, #3a3842);
border: 1px solid #514f5d;
border-radius: 1px;
box-shadow: 0 0 1px 1px #2a2930;
}
button.godot:hover {
color: #f0f0f0;
background-color: #44414e;
background-image: linear-gradient(to bottom, #494652, #423f4c);
border: 1px solid #5a5667;
box-shadow: 0 0 1px 1px #26252b;
}
button.godot:active {
color: #fff;
background-color: #3e3b46;
background-image: linear-gradient(to bottom, #36343d, #413e49);
border: 1px solid #4f4c59;
box-shadow: 0 0 1px 1px #26252b;
}
button.godot:disabled {
color: rgba(230, 230, 230, 0.2);
background-color: #3d3d3d;
background-image: linear-gradient(to bottom, #434343, #393939);
border: 1px solid #474747;
box-shadow: 0 0 1px 1px #2d2b33;
}
/* Canvas / wrapper
* ================ */
#container {
display: inline-block; /* scale with canvas */
vertical-align: top; /* prevent extra height */
position: relative; /* root for absolutely positioned overlay */
margin: 0;
border: 0 none;
padding: 0;
background-color: #0c0c0c;
}
#canvas {
display: block;
margin: 0 auto;
color: white;
}
#canvas:focus {
outline: none;
}
/* Status display
* ============== */
#status {
position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
display: flex;
justify-content: center;
align-items: center;
/* don't consume click events - make children visible explicitly */
visibility: hidden;
}
#status-progress {
width: 244px;
height: 7px;
background-color: #38363A;
border: 1px solid #444246;
padding: 1px;
box-shadow: 0 0 2px 1px #1B1C22;
border-radius: 2px;
visibility: visible;
}
#status-progress-inner {
height: 100%;
width: 0;
box-sizing: border-box;
transition: width 0.5s linear;
background-color: #202020;
border: 1px solid #222223;
box-shadow: 0 0 1px 1px #27282E;
border-radius: 3px;
}
#status-indeterminate {
visibility: visible;
position: relative;
}
#status-indeterminate > div {
width: 3px;
height: 0;
border-style: solid;
border-width: 6px 2px 0 2px;
border-color: #2b2b2b transparent transparent transparent;
transform-origin: center 14px;
position: absolute;
}
#status-indeterminate > div:nth-child(1) { transform: rotate( 22.5deg); }
#status-indeterminate > div:nth-child(2) { transform: rotate( 67.5deg); }
#status-indeterminate > div:nth-child(3) { transform: rotate(112.5deg); }
#status-indeterminate > div:nth-child(4) { transform: rotate(157.5deg); }
#status-indeterminate > div:nth-child(5) { transform: rotate(202.5deg); }
#status-indeterminate > div:nth-child(6) { transform: rotate(247.5deg); }
#status-indeterminate > div:nth-child(7) { transform: rotate(292.5deg); }
#status-indeterminate > div:nth-child(8) { transform: rotate(337.5deg); }
#status-notice {
margin: 0 100px;
line-height: 1.3;
visibility: visible;
padding: 4px 6px;
visibility: visible;
}
/* Debug output
* ============ */
#output-panel {
display: none;
max-width: 700px;
font-size: small;
margin: 6px auto 0;
padding: 0 4px 4px;
text-align: left;
line-height: 2.2;
}
#output-header {
display: flex;
justify-content: space-between;
align-items: center;
}
#output-container {
padding: 6px;
background-color: #2c2a32;
box-shadow: inset 0 0 1px 1px #232127;
color: #bbb;
}
#output-scroll {
line-height: 1;
height: 12em;
overflow-y: scroll;
white-space: pre-wrap;
font-size: small;
font-family: "Lucida Console", Monaco, monospace;
}
</style>
$GODOT_HEAD_INCLUDE
</head>
<body>
<div id="container">
<canvas id="canvas" oncontextmenu="event.preventDefault();" width="640" height="480">
HTML5 canvas appears to be unsupported in the current browser.<br />
Please try updating or use a different browser.
</canvas>
<div id="status">
<div id='status-progress' style='display: none;' oncontextmenu="event.preventDefault();"><div id ='status-progress-inner'></div></div>
<div id='status-indeterminate' style='display: none;' oncontextmenu="event.preventDefault();">
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div></div>
</div>
<div id="status-notice" class="godot" style='display: none;'></div>
</div>
</div>
<div id="output-panel" class="godot">
<div id="output-header">
Output:
<button id='output-clear' class='godot' type='button' autocomplete='off'>Clear</button>
</div>
<div id="output-container"><div id="output-scroll"></div></div>
</div>
<script type="text/javascript" src="$GODOT_BASENAME.js"></script>
<script type="text/javascript">//<![CDATA[
var game = new Engine;
(function() {
const BASENAME = '$GODOT_BASENAME';
const MEMORY_SIZE = $GODOT_TOTAL_MEMORY;
const DEBUG_ENABLED = $GODOT_DEBUG_ENABLED;
const INDETERMINATE_STATUS_STEP_MS = 100;
var container = document.getElementById('container');
var canvas = document.getElementById('canvas');
var statusProgress = document.getElementById('status-progress');
var statusProgressInner = document.getElementById('status-progress-inner');
var statusIndeterminate = document.getElementById('status-indeterminate');
var statusNotice = document.getElementById('status-notice');
var initializing = true;
var statusMode = 'hidden';
var indeterminiateStatusAnimationId = 0;
setStatusMode('indeterminate');
game.setCanvas(canvas);
game.setAsmjsMemorySize(MEMORY_SIZE);
function setStatusMode(mode) {
if (statusMode === mode || !initializing)
return;
[statusProgress, statusIndeterminate, statusNotice].forEach(elem => {
elem.style.display = 'none';
});
if (indeterminiateStatusAnimationId !== 0) {
cancelAnimationFrame(indeterminiateStatusAnimationId);
indeterminiateStatusAnimationId = 0;
}
switch (mode) {
case 'progress':
statusProgress.style.display = 'block';
break;
case 'indeterminate':
statusIndeterminate.style.display = 'block';
indeterminiateStatusAnimationId = requestAnimationFrame(animateStatusIndeterminate);
break;
case 'notice':
statusNotice.style.display = 'block';
break;
case 'hidden':
break;
default:
throw new Error("Invalid status mode");
}
statusMode = mode;
}
function animateStatusIndeterminate(ms) {
var i = Math.floor(ms / INDETERMINATE_STATUS_STEP_MS % 8);
if (statusIndeterminate.children[i].style.borderTopColor == '') {
Array.prototype.slice.call(statusIndeterminate.children).forEach(child => {
child.style.borderTopColor = '';
});
statusIndeterminate.children[i].style.borderTopColor = '#dfdfdf';
}
requestAnimationFrame(animateStatusIndeterminate);
}
function setStatusNotice(text) {
while (statusNotice.lastChild) {
statusNotice.removeChild(statusNotice.lastChild);
}
var lines = text.split('\n');
lines.forEach((line, index) => {
statusNotice.appendChild(document.createTextNode(line));
statusNotice.appendChild(document.createElement('br'));
});
};
game.setProgressFunc((current, total) => {
if (total > 0) {
statusProgressInner.style.width = current/total * 100 + '%';
setStatusMode('progress');
if (current === total) {
// wait for progress bar animation
setTimeout(() => {
setStatusMode('indeterminate');
}, 500);
}
} else {
setStatusMode('indeterminate');
}
});
if (DEBUG_ENABLED) {
var outputRoot = document.getElementById("output-panel");
var outputScroll = document.getElementById("output-scroll");
var OUTPUT_MSG_COUNT_MAX = 400;
document.getElementById('output-clear').addEventListener('click', () => {
while (outputScroll.firstChild) {
outputScroll.firstChild.remove();
}
});
outputRoot.style.display = 'block';
function print(text) {
if (arguments.length > 1) {
text = Array.prototype.slice.call(arguments).join(" ");
}
if (text.length <= 0) return;
while (outputScroll.childElementCount >= OUTPUT_MSG_COUNT_MAX) {
outputScroll.firstChild.remove();
}
var msg = document.createElement("div");
if (String.prototype.trim.call(text).startsWith("**ERROR**")) {
msg.style.color = "#d44";
} else if (String.prototype.trim.call(text).startsWith("**WARNING**")) {
msg.style.color = "#ccc000";
} else if (String.prototype.trim.call(text).startsWith("**SCRIPT ERROR**")) {
msg.style.color = "#c6d";
}
msg.textContent = text;
var scrollToBottom = outputScroll.scrollHeight - (outputScroll.clientHeight + outputScroll.scrollTop) < 10;
outputScroll.appendChild(msg);
if (scrollToBottom) {
outputScroll.scrollTop = outputScroll.scrollHeight;
}
};
function printError(text) {
print('**ERROR**' + ":", text);
}
game.setStdoutFunc(text => {
print(text);
console.log(text);
});
game.setStderrFunc(text => {
printError(text);
console.warn(text);
});
}
game.start(BASENAME + '.pck').then(() => {
setStatusMode('hidden');
initializing = false;
}, err => {
if (DEBUG_ENABLED)
printError(err.message);
setStatusNotice(err.message);
setStatusMode('notice');
initializing = false;
});
})();
//]]></script>
</body>
</html>

151
misc/dist/html_fs/godotfs.js vendored
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@ -1,151 +0,0 @@
var Module;
if (typeof Module === 'undefined') Module = eval('(function() { try { return Module || {} } catch(e) { return {} } })()');
if (!Module.expectedDataFileDownloads) {
Module.expectedDataFileDownloads = 0;
Module.finishedDataFileDownloads = 0;
}
Module.expectedDataFileDownloads++;
(function() {
const PACK_FILE_NAME = '$GODOT_PACK_NAME';
const PACK_FILE_SIZE = $GODOT_PACK_SIZE;
function fetchRemotePackage(packageName, callback, errback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', packageName, true);
xhr.responseType = 'arraybuffer';
xhr.onprogress = function(event) {
var url = packageName;
if (event.loaded && event.total) {
if (!xhr.addedTotal) {
xhr.addedTotal = true;
if (!Module.dataFileDownloads) Module.dataFileDownloads = {};
Module.dataFileDownloads[url] = {
loaded: event.loaded,
total: event.total
};
} else {
Module.dataFileDownloads[url].loaded = event.loaded;
}
var total = 0;
var loaded = 0;
var num = 0;
for (var download in Module.dataFileDownloads) {
var data = Module.dataFileDownloads[download];
total += data.total;
loaded += data.loaded;
num++;
}
total = Math.ceil(total * Module.expectedDataFileDownloads/num);
if (Module['setStatus']) Module['setStatus']('Downloading data... (' + loaded + '/' + total + ')');
} else if (!Module.dataFileDownloads) {
if (Module['setStatus']) Module['setStatus']('Downloading data...');
}
};
xhr.onload = function(event) {
var packageData = xhr.response;
callback(packageData);
};
xhr.send(null);
};
function handleError(error) {
console.error('package error:', error);
};
var fetched = null, fetchedCallback = null;
fetchRemotePackage(PACK_FILE_NAME, function(data) {
if (fetchedCallback) {
fetchedCallback(data);
fetchedCallback = null;
} else {
fetched = data;
}
}, handleError);
function runWithFS() {
function assert(check, msg) {
if (!check) throw msg + new Error().stack;
}
function DataRequest(start, end, crunched, audio) {
this.start = start;
this.end = end;
this.crunched = crunched;
this.audio = audio;
}
DataRequest.prototype = {
requests: {},
open: function(mode, name) {
this.name = name;
this.requests[name] = this;
Module['addRunDependency']('fp ' + this.name);
},
send: function() {},
onload: function() {
var byteArray = this.byteArray.subarray(this.start, this.end);
this.finish(byteArray);
},
finish: function(byteArray) {
var that = this;
Module['FS_createPreloadedFile'](this.name, null, byteArray, true, true, function() {
Module['removeRunDependency']('fp ' + that.name);
}, function() {
if (that.audio) {
Module['removeRunDependency']('fp ' + that.name); // workaround for chromium bug 124926 (still no audio with this, but at least we don't hang)
} else {
Module.printErr('Preloading file ' + that.name + ' failed');
}
}, false, true); // canOwn this data in the filesystem, it is a slide into the heap that will never change
this.requests[this.name] = null;
},
};
new DataRequest(0, PACK_FILE_SIZE, 0, 0).open('GET', '/' + PACK_FILE_NAME);
var PACKAGE_PATH;
if (typeof window === 'object') {
PACKAGE_PATH = window['encodeURIComponent'](window.location.pathname.toString().substring(0, window.location.pathname.toString().lastIndexOf('/')) + '/');
} else {
// worker
PACKAGE_PATH = encodeURIComponent(location.pathname.toString().substring(0, location.pathname.toString().lastIndexOf('/')) + '/');
}
var PACKAGE_NAME = PACK_FILE_NAME;
var REMOTE_PACKAGE_NAME = PACK_FILE_NAME;
var PACKAGE_UUID = 'b39761ce-0348-4959-9b16-302ed8e1592e';
function processPackageData(arrayBuffer) {
Module.finishedDataFileDownloads++;
assert(arrayBuffer, 'Loading data file failed.');
var byteArray = new Uint8Array(arrayBuffer);
var curr;
// Reuse the bytearray from the XHR as the source for file reads.
DataRequest.prototype.byteArray = byteArray;
DataRequest.prototype.requests['/' + PACK_FILE_NAME].onload();
Module['removeRunDependency']('datafile_datapack');
};
Module['addRunDependency']('datafile_datapack');
if (!Module.preloadResults) Module.preloadResults = {};
Module.preloadResults[PACKAGE_NAME] = {fromCache: false};
if (fetched) {
processPackageData(fetched);
fetched = null;
} else {
fetchedCallback = processPackageData;
}
}
if (Module['calledRun']) {
runWithFS();
} else {
if (!Module['preRun']) Module['preRun'] = [];
Module["preRun"].push(runWithFS); // FS is not initialized yet, wait for it
}
})();

33
platform/javascript/SCsub
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@ -20,33 +20,32 @@ for x in javascript_files:
javascript_objects.append(env_javascript.Object(x))
env.Append(LINKFLAGS=["-s", "EXPORTED_FUNCTIONS=\"['_main','_audio_server_mix_function','_main_after_fs_sync','_send_notification']\""])
env.Append(LINKFLAGS=["--shell-file", '"platform/javascript/godot_shell.html"'])
# output file name without file extension
basename = "godot" + env["PROGSUFFIX"]
target_dir = env.Dir("#bin")
js_file = target_dir.File(basename + ".js")
implicit_targets = [js_file]
zip_dir = target_dir.Dir('.javascript_zip')
zip_files = env.InstallAs([zip_dir.File("godot.js"), zip_dir.File("godotfs.js")], [js_file, "#misc/dist/html_fs/godotfs.js"])
zip_files = env.InstallAs(zip_dir.File('godot.html'), '#misc/dist/html/default.html')
implicit_targets = []
if env['wasm'] == 'yes':
wasm_file = target_dir.File(basename+'.wasm')
implicit_targets.append(wasm_file)
zip_files.append(InstallAs(zip_dir.File('godot.wasm'), wasm_file))
wasm = target_dir.File(basename + '.wasm')
implicit_targets.append(wasm)
zip_files.append(InstallAs(zip_dir.File('godot.wasm'), wasm))
prejs = env.File('pre_wasm.js')
else:
asmjs_files = [target_dir.File(basename+'.asm.js'), target_dir.File(basename+'.html.mem')]
zip_files.append(InstallAs([zip_dir.File('godot.asm.js'), zip_dir.File('godot.mem')], asmjs_files))
asmjs_files = [target_dir.File(basename + '.asm.js'), target_dir.File(basename + '.js.mem')]
implicit_targets.extend(asmjs_files)
zip_files.append(InstallAs([zip_dir.File('godot.asm.js'), zip_dir.File('godot.mem')], asmjs_files))
prejs = env.File('pre_asmjs.js')
# HTML file must be the first target in the list
html_file = env.Program(["#bin/godot"] + implicit_targets, javascript_objects, PROGSUFFIX=env["PROGSUFFIX"]+".html")[0]
Depends(html_file, "godot_shell.html")
js = env.Program(['#bin/godot'] + implicit_targets, javascript_objects, PROGSUFFIX=env['PROGSUFFIX'] + '.js')[0];
zip_files.append(InstallAs(zip_dir.File('godot.js'), js))
# Emscripten hardcodes file names, so replace common base name with
# placeholder while leaving extension; also change `.html.mem` to just `.mem`
fixup_html = env.Substfile(html_file, SUBST_DICT=[(basename, '$$GODOT_BASE'), ('.html.mem', '.mem')], SUBSTFILESUFFIX='.fixup.html')
postjs = env.File('engine.js')
env.Depends(js, [prejs, postjs])
env.Append(LINKFLAGS=['--pre-js', prejs.path])
env.Append(LINKFLAGS=['--post-js', postjs.path])
zip_files.append(InstallAs(zip_dir.File('godot.html'), fixup_html))
Zip('#bin/godot', zip_files, ZIPSUFFIX=env['PROGSUFFIX']+env['ZIPSUFFIX'], ZIPROOT=zip_dir, ZIPCOMSTR="Archving $SOURCES as $TARGET")
Zip('#bin/godot', zip_files, ZIPSUFFIX=env['PROGSUFFIX'] + env['ZIPSUFFIX'], ZIPROOT=zip_dir, ZIPCOMSTR="Archving $SOURCES as $TARGET")

2
platform/javascript/detect.py
View file

@ -100,6 +100,7 @@ def configure(env):
## Link flags
env.Append(LINKFLAGS=['-s', 'EXTRA_EXPORTED_RUNTIME_METHODS="[\'FS\']"'])
env.Append(LINKFLAGS=['-s', 'USE_WEBGL2=1'])
if (env['wasm'] == 'yes'):
@ -112,6 +113,7 @@ def configure(env):
else:
env.Append(LINKFLAGS=['-s', 'ASM_JS=1'])
env.Append(LINKFLAGS=['--separate-asm'])
env.Append(LINKFLAGS=['--memory-init-file', '1'])
# TODO: Move that to opus module's config
if("module_opus_enabled" in env and env["module_opus_enabled"] != "no"):

366
platform/javascript/engine.js Normal file
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@ -0,0 +1,366 @@
return Module;
},
};
(function() {
var engine = Engine;
var USING_WASM = engine.USING_WASM;
var DOWNLOAD_ATTEMPTS_MAX = 4;
var basePath = null;
var engineLoadPromise = null;
var loadingFiles = {};
function getBasePath(path) {
if (path.endsWith('/'))
path = path.slice(0, -1);
if (path.lastIndexOf('.') > path.lastIndexOf('/'))
path = path.slice(0, path.lastIndexOf('.'));
return path;
}
function getBaseName(path) {
path = getBasePath(path);
return path.slice(path.lastIndexOf('/') + 1);
}
Engine = function Engine() {
this.rtenv = null;
var gameInitPromise = null;
var unloadAfterInit = true;
var memorySize = 268435456;
var progressFunc = null;
var pckProgressTracker = {};
var lastProgress = { loaded: 0, total: 0 };
var canvas = null;
var stdout = null;
var stderr = null;
this.initGame = function(mainPack) {
if (!gameInitPromise) {
if (mainPack === undefined) {
if (basePath !== null) {
mainPack = basePath + '.pck';
} else {
return Promise.reject(new Error("No main pack to load specified"));
}
}
if (basePath === null)
basePath = getBasePath(mainPack);
gameInitPromise = Engine.initEngine().then(
instantiate.bind(this)
);
var gameLoadPromise = loadPromise(mainPack, pckProgressTracker).then(function(xhr) { return xhr.response; });
gameInitPromise = Promise.all([gameLoadPromise, gameInitPromise]).then(function(values) {
// resolve with pck
return new Uint8Array(values[0]);
});
if (unloadAfterInit)
gameInitPromise.then(Engine.unloadEngine);
requestAnimationFrame(animateProgress);
}
return gameInitPromise;
};
function instantiate(initializer) {
var rtenvOpts = {
noInitialRun: true,
thisProgram: getBaseName(basePath),
engine: this,
};
if (typeof stdout === 'function')
rtenvOpts.print = stdout;
if (typeof stderr === 'function')
rtenvOpts.printErr = stderr;
if (typeof WebAssembly === 'object' && initializer instanceof WebAssembly.Module) {
rtenvOpts.instantiateWasm = function(imports, onSuccess) {
WebAssembly.instantiate(initializer, imports).then(function(result) {
onSuccess(result);
});
return {};
};
} else if (initializer.asm && initializer.mem) {
rtenvOpts.asm = initializer.asm;
rtenvOpts.memoryInitializerRequest = initializer.mem;
rtenvOpts.TOTAL_MEMORY = memorySize;
} else {
throw new Error("Invalid initializer");
}
return new Promise(function(resolve, reject) {
rtenvOpts.onRuntimeInitialized = resolve;
rtenvOpts.onAbort = reject;
rtenvOpts.engine.rtenv = Engine.RuntimeEnvironment(rtenvOpts);
});
}
this.start = function(mainPack) {
return this.initGame(mainPack).then(synchronousStart.bind(this));
};
function synchronousStart(pckView) {
// TODO don't expect canvas when runninng as cli tool
if (canvas instanceof HTMLCanvasElement) {
this.rtenv.canvas = canvas;
} else {
var firstCanvas = document.getElementsByTagName('canvas')[0];
if (firstCanvas instanceof HTMLCanvasElement) {
this.rtenv.canvas = firstCanvas;
} else {
throw new Error("No canvas found");
}
}
var actualCanvas = this.rtenv.canvas;
var context = false;
try {
context = actualCanvas.getContext('webgl2') || actualCanvas.getContext('experimental-webgl2');
} catch (e) {}
if (!context) {
throw new Error("WebGL 2 not available");
}
// canvas can grab focus on click
if (actualCanvas.tabIndex < 0) {
actualCanvas.tabIndex = 0;
}
// necessary to calculate cursor coordinates correctly
actualCanvas.style.padding = 0;
actualCanvas.style.borderWidth = 0;
actualCanvas.style.borderStyle = 'none';
// until context restoration is implemented
actualCanvas.addEventListener('webglcontextlost', function(ev) {
alert("WebGL context lost, please reload the page");
ev.preventDefault();
}, false);
this.rtenv.FS.createDataFile('/', this.rtenv.thisProgram + '.pck', pckView, true, true, true);
gameInitPromise = null;
this.rtenv.callMain();
}
this.setProgressFunc = function(func) {
progressFunc = func;
};
function animateProgress() {
var loaded = 0;
var total = 0;
var totalIsValid = true;
var progressIsFinal = true;
[loadingFiles, pckProgressTracker].forEach(function(tracker) {
Object.keys(tracker).forEach(function(file) {
if (!tracker[file].final)
progressIsFinal = false;
if (!totalIsValid || tracker[file].total === 0) {
totalIsValid = false;
total = 0;
} else {
total += tracker[file].total;
}
loaded += tracker[file].loaded;
});
});
if (loaded !== lastProgress.loaded || total !== lastProgress.total) {
lastProgress.loaded = loaded;
lastProgress.total = total;
if (typeof progressFunc === 'function')
progressFunc(loaded, total);
}
if (!progressIsFinal)
requestAnimationFrame(animateProgress);
}
this.setCanvas = function(elem) {
canvas = elem;
};
this.setAsmjsMemorySize = function(size) {
memorySize = size;
};
this.setUnloadAfterInit = function(enabled) {
if (enabled && !unloadAfterInit && gameInitPromise) {
gameInitPromise.then(Engine.unloadEngine);
}
unloadAfterInit = enabled;
};
this.setStdoutFunc = function(func) {
var print = function(text) {
if (arguments.length > 1) {
text = Array.prototype.slice.call(arguments).join(" ");
}
func(text);
};
if (this.rtenv)
this.rtenv.print = print;
stdout = print;
};
this.setStderrFunc = function(func) {
var printErr = function(text) {
if (arguments.length > 1)
text = Array.prototype.slice.call(arguments).join(" ");
func(text);
};
if (this.rtenv)
this.rtenv.printErr = printErr;
stderr = printErr;
};
}; // Engine()
Engine.RuntimeEnvironment = engine.RuntimeEnvironment;
Engine.initEngine = function(newBasePath) {
if (newBasePath !== undefined) basePath = getBasePath(newBasePath);
if (engineLoadPromise === null) {
if (USING_WASM) {
if (typeof WebAssembly !== 'object')
return Promise.reject(new Error("Browser doesn't support WebAssembly"));
// TODO cache/retrieve module to/from idb
engineLoadPromise = loadPromise(basePath + '.wasm').then(function(xhr) {
return WebAssembly.compile(xhr.response);
});
} else {
var asmjsPromise = loadPromise(basePath + '.asm.js').then(function(xhr) {
return asmjsModulePromise(xhr.response);
});
var memPromise = loadPromise(basePath + '.mem');
engineLoadPromise = Promise.all([asmjsPromise, memPromise]).then(function(values) {
return { asm: values[0], mem: values[1] };
});
}
engineLoadPromise = engineLoadPromise.catch(function(err) {
engineLoadPromise = null;
throw err;
});
}
return engineLoadPromise;
};
function asmjsModulePromise(module) {
var elem = document.createElement('script');
var script = new Blob([
'Engine.asm = (function() { var Module = {};',
module,
'return Module.asm; })();'
]);
var url = URL.createObjectURL(script);
elem.src = url;
return new Promise(function(resolve, reject) {
elem.addEventListener('load', function() {
URL.revokeObjectURL(url);
var asm = Engine.asm;
Engine.asm = undefined;
setTimeout(function() {
// delay to reclaim compilation memory
resolve(asm);
}, 1);
});
elem.addEventListener('error', function() {
URL.revokeObjectURL(url);
reject("asm.js faiilure");
});
document.body.appendChild(elem);
});
}
Engine.unloadEngine = function() {
engineLoadPromise = null;
};
function loadPromise(file, tracker) {
if (tracker === undefined)
tracker = loadingFiles;
return new Promise(function(resolve, reject) {
loadXHR(resolve, reject, file, tracker);
});
}
function loadXHR(resolve, reject, file, tracker) {
var xhr = new XMLHttpRequest;
xhr.open('GET', file);
if (!file.endsWith('.js')) {
xhr.responseType = 'arraybuffer';
}
['loadstart', 'progress', 'load', 'error', 'timeout', 'abort'].forEach(function(ev) {
xhr.addEventListener(ev, onXHREvent.bind(xhr, resolve, reject, file, tracker));
});
xhr.send();
}
function onXHREvent(resolve, reject, file, tracker, ev) {
if (this.status >= 400) {
if (this.status < 500 || ++tracker[file].attempts >= DOWNLOAD_ATTEMPTS_MAX) {
reject(new Error("Failed loading file '" + file + "': " + this.statusText));
this.abort();
return;
} else {
loadXHR(resolve, reject, file);
}
}
switch (ev.type) {
case 'loadstart':
if (tracker[file] === undefined) {
tracker[file] = {
total: ev.total,
loaded: ev.loaded,
attempts: 0,
final: false,
};
}
break;
case 'progress':
tracker[file].loaded = ev.loaded;
tracker[file].total = ev.total;
break;
case 'load':
tracker[file].final = true;
resolve(this);
break;
case 'error':
case 'timeout':
if (++tracker[file].attempts >= DOWNLOAD_ATTEMPTS_MAX) {
tracker[file].final = true;
reject(new Error("Failed loading file '" + file + "'"));
} else {
loadXHR(resolve, reject, file);
}
break;
case 'abort':
tracker[file].final = true;
reject(new Error("Loading file '" + file + "' was aborted."));
break;
}
}
})();

30
platform/javascript/export/export.cpp
View file

@ -100,8 +100,8 @@ void EditorExportPlatformJavaScript::_fix_html(Vector<uint8_t> &p_html, const Re
for (int i = 0; i < lines.size(); i++) {
String current_line = lines[i];
current_line = current_line.replace("$GODOT_TMEM", itos(memory_mb * 1024 * 1024));
current_line = current_line.replace("$GODOT_BASE", p_name);
current_line = current_line.replace("$GODOT_TOTAL_MEMORY", itos(memory_mb * 1024 * 1024));
current_line = current_line.replace("$GODOT_BASENAME", p_name);
current_line = current_line.replace("$GODOT_HEAD_INCLUDE", p_preset->get("html/head_include"));
current_line = current_line.replace("$GODOT_DEBUG_ENABLED", p_debug ? "true" : "false");
str_export += current_line + "\n";
@ -114,28 +114,6 @@ void EditorExportPlatformJavaScript::_fix_html(Vector<uint8_t> &p_html, const Re
}
}
void EditorExportPlatformJavaScript::_fix_fsloader_js(Vector<uint8_t> &p_js, const String &p_pack_name, uint64_t p_pack_size) {
String str_template = String::utf8(reinterpret_cast<const char *>(p_js.ptr()), p_js.size());
String str_export;
Vector<String> lines = str_template.split("\n");
for (int i = 0; i < lines.size(); i++) {
if (lines[i].find("$GODOT_PACK_NAME") != -1) {
str_export += lines[i].replace("$GODOT_PACK_NAME", p_pack_name);
} else if (lines[i].find("$GODOT_PACK_SIZE") != -1) {
str_export += lines[i].replace("$GODOT_PACK_SIZE", itos(p_pack_size));
} else {
str_export += lines[i] + "\n";
}
}
CharString cs = str_export.utf8();
p_js.resize(cs.length());
for (int i = 0; i < cs.length(); i++) {
p_js[i] = cs[i];
}
}
void EditorExportPlatformJavaScript::get_preset_features(const Ref<EditorExportPreset> &p_preset, List<String> *r_features) {
if (p_preset->get("texture_format/s3tc")) {
@ -286,10 +264,6 @@ Error EditorExportPlatformJavaScript::export_project(const Ref<EditorExportPrese
_fix_html(data, p_preset, p_path.get_file().get_basename(), p_debug);
file = p_path.get_file();
} else if (file == "godotfs.js") {
_fix_fsloader_js(data, pck_path.get_file(), pack_size);
file = p_path.get_file().get_basename() + "fs.js";
} else if (file == "godot.js") {
file = p_path.get_file().get_basename() + ".js";

347
platform/javascript/godot_shell.html
View file

@ -1,347 +0,0 @@
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="" xml:lang="">
<head>
<meta charset="utf-8" />
<title></title>
<style type="text/css">
body {
margin: 0;
border: 0 none;
padding: 0;
text-align: center;
background-color: #222226;
font-family: 'Droid Sans', Arial, sans-serif;
}
/* Godot Engine default theme style
* ================================ */
.godot {
color: #e0e0e0;
background-color: #3b3943;
background-image: linear-gradient(to bottom, #403e48, #35333c);
border: 1px solid #45434e;
box-shadow: 0 0 1px 1px #2f2d35;
}
button.godot {
font-family: 'Droid Sans', Arial, sans-serif; /* override user agent style */
padding: 1px 5px;
background-color: #37353f;
background-image: linear-gradient(to bottom, #413e49, #3a3842);
border: 1px solid #514f5d;
border-radius: 1px;
box-shadow: 0 0 1px 1px #2a2930;
}
button.godot:hover {
color: #f0f0f0;
background-color: #44414e;
background-image: linear-gradient(to bottom, #494652, #423f4c);
border: 1px solid #5a5667;
box-shadow: 0 0 1px 1px #26252b;
}
button.godot:active {
color: #fff;
background-color: #3e3b46;
background-image: linear-gradient(to bottom, #36343d, #413e49);
border: 1px solid #4f4c59;
box-shadow: 0 0 1px 1px #26252b;
}
button.godot:disabled {
color: rgba(230, 230, 230, 0.2);
background-color: #3d3d3d;
background-image: linear-gradient(to bottom, #434343, #393939);
border: 1px solid #474747;
box-shadow: 0 0 1px 1px #2d2b33;
}
/* Canvas / wrapper
* ================ */
#container {
display: inline-block; /* scale with canvas */
vertical-align: top; /* prevent extra height */
position: relative; /* root for absolutely positioned overlay */
margin: 0;
border: 0 none;
padding: 0;
background-color: #0c0c0c;
}
#canvas {
display: block;
margin: 0 auto;
/* canvas must have border and padding set to zero to
* calculate cursor coordinates correctly */
border: 0 none;
padding: 0;
color: white;
}
#canvas:focus {
outline: none;
}
/* Status display
* ============== */
#status-container {
position: absolute;
left: 0;
top: 0;
right: 0;
bottom: 0;
display: flex;
justify-content: center;
align-items: center;
/* don't consume click events - make children visible explicitly */
visibility: hidden;
}
#status {
line-height: 1.3;
cursor: pointer;
visibility: visible;
padding: 4px 6px;
}
/* Debug output
* ============ */
#output-panel {
display: none;
max-width: 700px;
font-size: small;
margin: 6px auto 0;
padding: 0 4px 4px;
text-align: left;
line-height: 2.2;
}
#output-header {
display: flex;
justify-content: space-between;
align-items: center;
}
#output-container {
padding: 6px;
background-color: #2c2a32;
box-shadow: inset 0 0 1px 1px #232127;
color: #bbb;
}
#output-scroll {
line-height: 1;
height: 12em;
overflow-y: scroll;
white-space: pre-wrap;
font-size: small;
font-family: "Lucida Console", Monaco, monospace;
}
</style>
$GODOT_HEAD_INCLUDE
</head>
<body>
<div id="container">
<canvas id="canvas" width="640" height="480" tabindex="0" oncontextmenu="event.preventDefault();">
HTML5 canvas appears to be unsupported in the current browser.<br />
Please try updating or use a different browser.
</canvas>
<div id="status-container">
<span id="status" class="godot" onclick="this.style.visibility='hidden';">Downloading page...</span>
</div>
</div>
<div id="output-panel" class="godot">
<div id="output-header">
Output:
<button class="godot" type="button" autocomplete="off" onclick="Presentation.clearOutput();">Clear</button>
</div>
<div id="output-container"><div id="output-scroll"></div></div>
</div>
<!-- Scripts -->
<script type="text/javascript">//<![CDATA[
var Presentation = (function() {
var statusElement = document.getElementById("status");
var canvasElement = document.getElementById("canvas");
var presentation = {
postRun: [],
setStatusVisible: function setStatusVisible(visible) {
statusElement.style.visibility = (visible ? "visible" : "hidden");
},
setStatus: function setStatus(text) {
if (text.length === 0) {
// emscripten sets empty string as status after "Running..."
// per timeout, but another status may have been set by then
if (Presentation.setStatus.lastText === "Running...")
Presentation.setStatusVisible(false);
return;
}
Presentation.setStatus.lastText = text;
while (statusElement.lastChild) {
statusElement.removeChild(statusElement.lastChild);
}
var lines = text.split("\n");
lines.forEach(function(line, index) {
statusElement.appendChild(document.createTextNode(line));
statusElement.appendChild(document.createElement("br"));
});
var closeNote = document.createElement("span");
closeNote.style.fontSize = "small";
closeNote.textContent = "click to close";
statusElement.appendChild(closeNote);
Presentation.setStatusVisible(true);
},
isWebGL2Available: function isWebGL2Available() {
var context;
try {
context = canvasElement.getContext("webgl2") || canvasElement.getContext("experimental-webgl2");
} catch (e) {}
return !!context;
},
};
window.onerror = function(event) { presentation.setStatus("Failure during start-up\nSee JavaScript console") };
if ($GODOT_DEBUG_ENABLED) { // debugging enabled
var outputRoot = document.getElementById("output-panel");
var outputElement = document.getElementById("output-scroll");
const maxOutputMessages = 400;
presentation.setOutputVisible = function setOutputVisible(visible) {
outputRoot.style.display = (visible ? "block" : "none");
};
presentation.clearOutput = function clearOutput() {
while (outputElement.firstChild) {
outputElement.firstChild.remove();
}
};
presentation.setOutputVisible(true);
presentation.print = function print(text) {
if (arguments.length > 1) {
text = Array.prototype.slice.call(arguments).join(" ");
}
if (text.length <= 0) return;
while (outputElement.childElementCount >= maxOutputMessages) {
outputElement.firstChild.remove();
}
var msg = document.createElement("div");
if (String.prototype.trim.call(text).startsWith("**ERROR**")
|| String.prototype.trim.call(text).startsWith("**EXCEPTION**")) {
msg.style.color = "#d44";
} else if (String.prototype.trim.call(text).startsWith("**WARNING**")) {
msg.style.color = "#ccc000";
} else if (String.prototype.trim.call(text).startsWith("**SCRIPT ERROR**")) {
msg.style.color = "#c6d";
}
msg.textContent = text;
var scrollToBottom = outputElement.scrollHeight - (outputElement.clientHeight + outputElement.scrollTop) < 10;
outputElement.appendChild(msg);
if (scrollToBottom) {
outputElement.scrollTop = outputElement.scrollHeight;
}
};
presentation.postRun.push(function() {
window.onerror = function(event) { presentation.print("**EXCEPTION**:", event) };
});
} else {
presentation.postRun.push(function() { window.onerror = null; });
}
return presentation;
})();
// Emscripten interface
var Module = (function() {
const BASE_NAME = '$GODOT_BASE';
var module = {
thisProgram: BASE_NAME,
wasmBinaryFile: BASE_NAME + '.wasm',
TOTAL_MEMORY: $GODOT_TMEM,
print: function print(text) {
if (arguments.length > 1) {
text = Array.prototype.slice.call(arguments).join(" ");
}
console.log(text);
if (typeof Presentation !== "undefined" && typeof Presentation.print === "function") {
Presentation.print(text);
}
},
printErr: function printErr(text) {
if (arguments.length > 1) {
text = Array.prototype.slice.call(arguments).join(" ");
}
console.error(text);
if (typeof Presentation !== "undefined" && typeof Presentation.print === "function") {
Presentation.print("**ERROR**:", text)
}
},
canvas: document.getElementById("canvas"),
setStatus: function setStatus(text) {
var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);
var now = Date.now();
if (m) {
if (now - Date.now() < 30) // if this is a progress update, skip it if too soon
return;
text = m[1];
}
if (typeof Presentation !== "undefined" && typeof Presentation.setStatus == "function") {
Presentation.setStatus(text);
}
}
};
// As a default initial behavior, pop up an alert when WebGL context is lost. To make your
// application robust, you may want to override this behavior before shipping!
// See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
module.canvas.addEventListener("webglcontextlost", function(e) { alert("WebGL context lost. Plase reload the page."); e.preventDefault(); }, false);
if (typeof Presentation !== "undefined" && Presentation.postRun instanceof Array) {
module.postRun = Presentation.postRun;
}
return module;
})();
if (!Presentation.isWebGL2Available()) {
Presentation.setStatus("WebGL 2 appears to be unsupported.\nPlease update browser and drivers.");
Presentation.preventLoading = true;
} else {
Presentation.setStatus("Downloading...");
}
if (Presentation.preventLoading) {
// prevent *fs.js and Emscripten's SCRIPT placeholder from loading any files
Presentation._XHR_send = XMLHttpRequest.prototype.send;
XMLHttpRequest.prototype.send = function() {};
Presentation._Node_appendChild = Node.prototype.appendChild;
Node.prototype.appendChild = function(node) {
if (!(node instanceof HTMLScriptElement)) {
return Presentation._Node_appendChild.call(this, node);
}
}
}
//]]></script>
<script type="text/javascript" src="$GODOT_BASEfs.js"></script>
{{{ SCRIPT }}}
<script type="text/javascript">
if (Presentation.preventLoading) {
XMLHttpRequest.prototype.send = Presentation._XHR_send;
Node.prototype.appendChild = Presentation._Node_appendChild;
}
</script>
</body>
</html>

3
platform/javascript/pre_asmjs.js Normal file
View file

@ -0,0 +1,3 @@
var Engine = {
USING_WASM: false,
RuntimeEnvironment: function(Module) {

3
platform/javascript/pre_wasm.js Normal file
View file

@ -0,0 +1,3 @@
var Engine = {
USING_WASM: true,
RuntimeEnvironment: function(Module) {