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@@ -0,0 +1,597 @@
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+/* ********************************************************************* */
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+/* Load and combine data that is split into archives */
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+/* ********************************************************************* */
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+
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+var Combine = {
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+ _targets: [],
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+ _targetIndex: 0,
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+ // target: build target
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+ // name: intended filepath of built object
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+ // size: expected size of built object.
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+ // data: combined data
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+ // downloaded: total amount of data downloaded
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+ // pieces: array of name, offset and data objects
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+ // numExpectedFiles: total number of files expected in description
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+ // lastRequestedPiece: index of last data file requested (strictly ascending)
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+ // totalLoadedPieces: counts the number of data files received
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+
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+ //MAX_CONCURRENT_XHR: 6, // remove comment if throttling of XHR is desired.
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+
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+ isCompleted: false, // status of process
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+
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+ _onCombineCompleted: [], // signature: name, data.
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+ _onAllTargetsBuilt:[], // signature: void
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+ _onDownloadProgress: [], // signature: downloaded, total
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+
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+ _totalDownloadBytes: 0,
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+ _archiveLocationFilter: function(path) { return "split" + path; },
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+
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+ addProgressListener: function(callback) {
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+ if (typeof callback !== 'function') {
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+ throw "Invalid callback registration";
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+ }
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+ this._onDownloadProgress.push(callback);
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+ },
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+
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+ addCombineCompletedListener: function(callback) {
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+ if (typeof callback !== 'function') {
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+ throw "Invalid callback registration";
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+ }
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+ this._onCombineCompleted.push(callback);
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+ },
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+
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+ addAllTargetsBuiltListener: function(callback) {
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+ if (typeof callback !== 'function') {
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+ throw "Invalid callback registration";
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+ }
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+ this._onAllTargetsBuilt.push(callback);
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+ },
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+
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+ // descriptUrl: location of text file describing files to be preloaded
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+ process: function(descriptUrl) {
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+ var xhr = new XMLHttpRequest();
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+ xhr.open('GET', descriptUrl);
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+ xhr.responseType = 'text';
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+ xhr.onload = function(evt) {
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+ Combine.onReceiveDescription(xhr);
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+ };
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+ xhr.send(null);
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+ },
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+
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+ cleanUp: function() {
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+ this._targets = [];
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+ this._targetIndex = 0;
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+ this.isCompleted = false;
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+ this._onCombineCompleted = [];
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+ this._onAllTargetsBuilt = [];
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+ this._onDownloadProgress = [];
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+
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+ this._totalDownloadBytes = 0;
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+ },
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+
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+ onReceiveDescription: function(xhr) {
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+ var json = JSON.parse(xhr.responseText);
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+ this._targets = json.content;
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+ this._totalDownloadBytes = 0;
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+
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+ var targets = this._targets;
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+ for(var i=0; i<targets.length; ++i) {
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+ this._totalDownloadBytes += targets[i].size;
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+ }
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+ this.requestContent();
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+ },
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+
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+ requestContent: function() {
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+ var target = this._targets[this._targetIndex];
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+ if (1 < target.pieces.length) {
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+ target.data = new Uint8Array(target.size);
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+ }
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+ var limit = target.pieces.length;
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+ if (typeof this.MAX_CONCURRENT_XHR !== 'undefined') {
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+ limit = Math.min(limit, this.MAX_CONCURRENT_XHR);
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+ }
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+ for (var i=0; i<limit; ++i) {
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+ this.requestPiece(target, i);
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+ }
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+ },
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+
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+ requestPiece: function(target, index) {
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+ if (index < target.lastRequestedPiece) {
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+ throw "Request out of order";
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+ }
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+
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+ target.lastRequestedPiece = index;
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+ target.progress = {};
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+
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+ var item = target.pieces[index];
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+ var xhr = new XMLHttpRequest();
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+ xhr.open('GET', this._archiveLocationFilter('/' + item.name), true);
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+ xhr.responseType = 'arraybuffer';
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+ xhr.onprogress = function(evt) {
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+ target.progress[item.name] = {total: 0, downloaded: 0};
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+ if (evt.total && evt.lengthComputable) {
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+ target.progress[item.name].total = evt.total;
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+ }
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+ if (evt.loaded && evt.lengthComputable) {
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+ target.progress[item.name].downloaded = evt.loaded;
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+ Combine.updateProgress(target);
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+ }
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+ };
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+ xhr.onload = function(evt) {
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+ item.data = new Uint8Array(xhr.response);
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+ item.dataLength = item.data.length;
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+ target.progress[item.name].total = item.dataLength;
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+ target.progress[item.name].downloaded = item.dataLength;
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+ Combine.copyData(target, item);
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+ Combine.onPieceLoaded(target, item);
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+ Combine.updateProgress(target);
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+ item.data = undefined;
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+ };
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+ xhr.send(null);
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+ },
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+
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+ updateProgress: function(target) {
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+ var total_downloaded = 0;
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+ for (var p in target.progress) {
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+ total_downloaded += target.progress[p].downloaded;
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+ }
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+ for(i = 0; i<this._onDownloadProgress.length; ++i) {
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+ this._onDownloadProgress[i](total_downloaded, this._totalDownloadBytes);
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+ }
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+ },
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+
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+ copyData: function(target, item) {
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+ if (1 == target.pieces.length) {
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+ target.data = item.data;
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+ } else {
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+ var start = item.offset;
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+ var end = start + item.data.length;
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+ if (0 > start) {
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+ throw "Buffer underflow";
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+ }
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+ if (end > target.data.length) {
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+ throw "Buffer overflow";
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+ }
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+ target.data.set(item.data, item.offset);
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+ }
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+ },
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+
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+ onPieceLoaded: function(target, item) {
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+ if (typeof target.totalLoadedPieces === 'undefined') {
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+ target.totalLoadedPieces = 0;
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+ }
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+ ++target.totalLoadedPieces;
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+ if (target.totalLoadedPieces == target.pieces.length) {
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+ this.finalizeTarget(target);
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+ ++this._targetIndex;
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+ for (var i=0; i<this._onCombineCompleted.length; ++i) {
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+ this._onCombineCompleted[i](target.name, target.data);
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+ }
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+ if (this._targetIndex < this._targets.length) {
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+ this.requestContent();
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+ } else {
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+ this.isCompleted = true;
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+ for (i=0; i<this._onAllTargetsBuilt.length; ++i) {
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+ this._onAllTargetsBuilt[i]();
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+ }
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+ }
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+ } else {
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+ var next = target.lastRequestedPiece + 1;
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+ if (next < target.pieces.length) {
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+ this.requestPiece(target, next);
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+ }
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+ }
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+ },
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+
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+ finalizeTarget: function(target) {
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+ var actualSize = 0;
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+ for (var i=0;i<target.pieces.length; ++i) {
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+ actualSize += target.pieces[i].dataLength;
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+ }
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+ if (actualSize != target.size) {
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+ throw "Unexpected data size";
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+ }
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+
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+ if (1 < target.pieces.length) {
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+ var output = target.data;
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+ var pieces = target.pieces;
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+ for (i=0; i<pieces.length; ++i) {
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+ var item = pieces[i];
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+ // Bounds check
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+ var start = item.offset;
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+ var end = start + item.dataLength;
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+ if (0 < i) {
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+ var previous = pieces[i - 1];
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+ if (previous.offset + previous.dataLength > start) {
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+ throw "Segment underflow";
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+ }
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+ }
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+ if (pieces.length - 2 > i) {
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+ var next = pieces[i + 1];
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+ if (end > next.offset) {
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+ throw "Segment overflow";
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+ }
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+ }
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+ }
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+ }
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+ }
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+};
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+
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+/* ********************************************************************* */
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+/* Default splash and progress visualisation */
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+/* ********************************************************************* */
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+
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+var Progress = {
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+ progress_id: "defold-progress",
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+ bar_id: "defold-progress-bar",
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+
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+ addProgress : function (canvas) {
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+ /* Insert default progress bar below canvas */
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+ canvas.insertAdjacentHTML('afterend', '<div id="' + Progress.progress_id + '" class="canvas-app-progress"><div id="' + Progress.bar_id + '" class="canvas-app-progress-bar" style="width: 0%;">0%</div></div>');
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+ Progress.bar = document.getElementById(Progress.bar_id);
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+ Progress.progress = document.getElementById(Progress.progress_id);
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+ },
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+
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+ updateProgress: function (percentage, text) {
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+ Progress.bar.style.width = percentage + "%";
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+
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+ text = (typeof text === 'undefined') ? Math.round(percentage) + "%" : text;
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+ Progress.bar.innerText = text;
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+ },
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+
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+ removeProgress: function () {
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+ if (Progress.progress.parentElement !== null) {
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+ Progress.progress.parentElement.removeChild(Progress.progress);
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+ }
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+ }
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+};
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+
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+/* ********************************************************************* */
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+/* Default input override */
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+/* ********************************************************************* */
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+
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+var CanvasInput = {
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+ arrowKeysHandler : function(e) {
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+ switch(e.keyCode) {
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+ case 37: case 38: case 39: case 40: // Arrow keys
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+ case 32: e.preventDefault(); e.stopPropagation(); // Space
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+ default: break; // do not block other keys
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+ }
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+ },
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+
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+ onFocusIn : function(e) {
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+ window.addEventListener("keydown", CanvasInput.arrowKeysHandler, false);
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+ },
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+
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+ onFocusOut: function(e) {
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+ window.removeEventListener("keydown", CanvasInput.arrowKeysHandler, false);
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+ },
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+
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+ addToCanvas : function(canvas) {
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+ canvas.addEventListener("focus", CanvasInput.onFocusIn, false);
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+ canvas.addEventListener("blur", CanvasInput.onFocusOut, false);
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+ canvas.focus();
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+ CanvasInput.onFocusIn();
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+ }
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+};
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+
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+/* ********************************************************************* */
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+/* Module is Emscripten namespace */
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+/* ********************************************************************* */
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+
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+var Module = {
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+ noInitialRun: true,
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+
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+ _filesToPreload: [],
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+ _archiveLoaded: false,
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+ _preLoadDone: false,
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+ _waitingForArchive: false,
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+
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+ // Persistent storage
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+ persistentStorage: true,
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+ _syncInProgress: false,
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+ _syncNeeded: false,
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+ _syncInitial: false,
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+ _syncMaxTries: 3,
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+ _syncTries: 0,
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+
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+ print: function(text) { console.log(text); },
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+ printErr: function(text) { console.error(text); },
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+
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+ setStatus: function(text) { console.log(text); },
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+
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+ prepareErrorObject: function (err, url, line, column, errObj) {
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+ line = typeof line == "undefined" ? 0 : line;
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+ column = typeof column == "undefined" ? 0 : column;
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+ url = typeof url == "undefined" ? "" : url;
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+ var errorLine = url + ":" + line + ":" + column;
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+
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+ var error = errObj || (typeof window.event != "undefined" ? window.event.error : "" ) || err || "Undefined Error";
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+ var message = "";
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+ var stack = "";
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+ var backtrace = "";
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+
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+ if (typeof error == "object" && typeof error.stack != "undefined" && typeof error.message != "undefined") {
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+ stack = String(error.stack);
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+ message = String(error.message);
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+ } else {
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+ stack = String(error).split("\n");
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+ message = stack.shift();
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+ stack = stack.join("\n");
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+ }
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+ stack = stack || errorLine;
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+
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+ var callLine = /at (\S+:\d*$)/.exec(message);
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+ if (callLine) {
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+ message = message.replace(/(at \S+:\d*$)/, "");
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+ stack = callLine[1] + "\n" + stack;
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+ }
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+
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+ message = message.replace(/(abort\(.+\)) at .+/, "$1");
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+ stack = stack.replace(/\?{1}\S+(:\d+:\d+)/g, "$1");
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+ stack = stack.replace(/ *at (\S+)$/gm, "@$1");
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+ stack = stack.replace(/ *at (\S+)(?: \[as \S+\])? +\((.+)\)/g, "$1@$2");
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+ stack = stack.replace(/^((?:Object|Array)\.)/gm, "");
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+ stack = stack.split("\n");
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+
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+ return { stack:stack, message:message };
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+ },
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+
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+ hasWebGLSupport: function() {
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+ var webgl_support = false;
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+ try {
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+ var canvas = document.createElement("canvas");
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+ var gl = canvas.getContext("webgl") || canvas.getContext("experimental-webgl");
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+ if (gl && gl instanceof WebGLRenderingContext) {
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+ webgl_support = true;
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+ }
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+ } catch (error) {
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+ console.log("An error occurred while detecting WebGL support: " + error);
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+ webgl_support = false;
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+ }
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+
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+ return webgl_support;
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+ },
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+
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+ /**
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+ * Module.runApp - Starts the application given a canvas element id
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+ *
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+ * 'extra_params' is an optional object that can have the following fields:
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+ *
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+ * 'splash_image':
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+ * Path to an image that should be used as a background image for
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+ * the canvas element.
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+ *
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+ * 'archive_location_filter':
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+ * Filter function that will run for each archive path.
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+ *
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+ * 'unsupported_webgl_callback':
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+ * Function that is called if WebGL is not supported.
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+ *
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+ * 'engine_arguments':
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+ * List of arguments (strings) that will be passed to the engine.
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+ *
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+ * 'persistent_storage':
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+ * Boolean toggling the usage of persistent storage.
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+ *
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+ * 'custom_heap_size':
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+ * Number of bytes specifying the memory heap size.
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+ *
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+ **/
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+ runApp: function(app_canvas_id, extra_params) {
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+ app_canvas_id = (typeof app_canvas_id === 'undefined') ? 'canvas' : app_canvas_id;
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+
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+ var params = {
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+ splash_image: undefined,
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+ archive_location_filter: function(path) { return 'split' + path; },
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+ unsupported_webgl_callback: undefined,
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+ engine_arguments: [],
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+ persistent_storage: true,
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+ custom_heap_size: undefined
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+ };
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+
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+ for (var k in extra_params) {
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+ if (extra_params.hasOwnProperty(k)) {
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+ params[k] = extra_params[k];
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+ }
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+ }
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+
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+ Module.canvas = document.getElementById(app_canvas_id);
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+ if (typeof params["splash_image"] !== 'undefined') {
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+ Module.canvas.style.background = 'no-repeat center url("' + params["splash_image"] + '")';
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+ }
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+ Module.arguments = params["engine_arguments"];
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+ Module.persistentStorage = params["persistent_storage"];
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+ Module["TOTAL_MEMORY"] = params["custom_heap_size"];
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+
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+ if (Module.hasWebGLSupport()) {
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+ // Override game keys
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+ CanvasInput.addToCanvas(Module.canvas);
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+
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+ // Load Facebook API
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+ var fb = document.createElement('script');
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+ fb.type = 'text/javascript';
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+ fb.src = '//connect.facebook.net/en_US/sdk.js';
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+ document.head.appendChild(fb);
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+
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+ // Add progress visuals
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|
+ Progress.addProgress(Module.canvas);
|
|
|
+
|
|
|
+ // Load and assemble archive
|
|
|
+ Combine.addCombineCompletedListener(Module.onArchiveFileLoaded);
|
|
|
+ Combine.addAllTargetsBuiltListener(Module.onArchiveLoaded);
|
|
|
+ Combine.addProgressListener(Module.onArchiveLoadProgress);
|
|
|
+ Combine._archiveLocationFilter = params["archive_location_filter"];
|
|
|
+ Combine.process(Combine._archiveLocationFilter('/archive_files.json'));
|
|
|
+ } else {
|
|
|
+ Progress.addProgress(Module.canvas);
|
|
|
+ Progress.updateProgress(100, "Unable to start game, WebGL not supported");
|
|
|
+ Module.setStatus = function(text) {
|
|
|
+ if (text) Module.printErr('[missing WebGL] ' + text);
|
|
|
+ };
|
|
|
+
|
|
|
+ if (typeof params["unsupported_webgl_callback"] === "function") {
|
|
|
+ params["unsupported_webgl_callback"]();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+
|
|
|
+ onArchiveLoadProgress: function(downloaded, total) {
|
|
|
+ Progress.updateProgress(downloaded / total * 100);
|
|
|
+ },
|
|
|
+
|
|
|
+ onArchiveFileLoaded: function(name, data) {
|
|
|
+ Module._filesToPreload.push({path: name, data: data});
|
|
|
+ },
|
|
|
+
|
|
|
+ onArchiveLoaded: function() {
|
|
|
+ Combine.cleanUp();
|
|
|
+ Module._archiveLoaded = true;
|
|
|
+ Progress.updateProgress(100, "Starting...");
|
|
|
+
|
|
|
+ if (Module._waitingForArchive) {
|
|
|
+ Module._preloadAndCallMain();
|
|
|
+ }
|
|
|
+ },
|
|
|
+
|
|
|
+ toggleFullscreen: function() {
|
|
|
+ if (GLFW.isFullscreen) {
|
|
|
+ GLFW.cancelFullScreen();
|
|
|
+ } else {
|
|
|
+ GLFW.requestFullScreen();
|
|
|
+ }
|
|
|
+ },
|
|
|
+
|
|
|
+ preSync: function(done) {
|
|
|
+ // Initial persistent sync before main is called
|
|
|
+ FS.syncfs(true, function(err) {
|
|
|
+ if(err) {
|
|
|
+ Module._syncTries += 1;
|
|
|
+ console.error("FS syncfs error: " + err);
|
|
|
+ if (Module._syncMaxTries > Module._syncTries) {
|
|
|
+ Module.preSync(done);
|
|
|
+ } else {
|
|
|
+ Module._syncInitial = true;
|
|
|
+ done();
|
|
|
+ }
|
|
|
+ } else {
|
|
|
+ Module._syncInitial = true;
|
|
|
+ if (done !== undefined) {
|
|
|
+ done();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ });
|
|
|
+ },
|
|
|
+
|
|
|
+ preloadAll: function() {
|
|
|
+ if (Module._preLoadDone) {
|
|
|
+ return;
|
|
|
+ }
|
|
|
+ for (var i = 0; i < Module._filesToPreload.length; ++i) {
|
|
|
+ var item = Module._filesToPreload[i];
|
|
|
+ FS.createPreloadedFile("", item.path, item.data, true, true);
|
|
|
+ }
|
|
|
+ Module._preLoadDone = true;
|
|
|
+ },
|
|
|
+
|
|
|
+ // Tries to do a MEM->IDB sync
|
|
|
+ // It will flag that another one is needed if there is already one sync running.
|
|
|
+ persistentSync: function() {
|
|
|
+
|
|
|
+ // Need to wait for the initial sync to finish since it
|
|
|
+ // will call close on all its file streams which will trigger
|
|
|
+ // new persistentSync for each.
|
|
|
+ if (Module._syncInitial) {
|
|
|
+ if (Module._syncInProgress) {
|
|
|
+ Module._syncNeeded = true;
|
|
|
+ } else {
|
|
|
+ Module._startSyncFS();
|
|
|
+ }
|
|
|
+ }
|
|
|
+ },
|
|
|
+
|
|
|
+ preInit: [function() {
|
|
|
+ /* Mount filesystem on preinit */
|
|
|
+ var dir = DMSYS.GetUserPersistentDataRoot();
|
|
|
+ FS.mkdir(dir);
|
|
|
+
|
|
|
+ // If IndexedDB is supported we mount the persistent data root as IDBFS,
|
|
|
+ // then try to do a IDB->MEM sync before we start the engine to get
|
|
|
+ // previously saved data before boot.
|
|
|
+ window.indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
|
|
|
+ if (Module.persistentStorage && window.indexedDB) {
|
|
|
+ FS.mount(IDBFS, {}, dir);
|
|
|
+
|
|
|
+ // Patch FS.close so it will try to sync MEM->IDB
|
|
|
+ var _close = FS.close; FS.close = function(stream) { var r = _close(stream); Module.persistentSync(); return r; }
|
|
|
+
|
|
|
+ // Sync IDB->MEM before calling main()
|
|
|
+ Module.preSync(function() {
|
|
|
+ Module._preloadAndCallMain();
|
|
|
+ });
|
|
|
+ } else {
|
|
|
+ Module._preloadAndCallMain();
|
|
|
+ }
|
|
|
+ }],
|
|
|
+
|
|
|
+ preRun: [function() {
|
|
|
+ /* If archive is loaded, preload all its files */
|
|
|
+ if(Module._archiveLoaded) {
|
|
|
+ Module.preloadAll();
|
|
|
+ }
|
|
|
+ }],
|
|
|
+
|
|
|
+ postRun: [function() {
|
|
|
+ if(Module._archiveLoaded) {
|
|
|
+ Progress.removeProgress();
|
|
|
+ }
|
|
|
+ }],
|
|
|
+
|
|
|
+ _preloadAndCallMain: function() {
|
|
|
+ // If the archive isn't loaded,
|
|
|
+ // we will have to wait with calling main.
|
|
|
+ if (!Module._archiveLoaded) {
|
|
|
+ Module._waitingForArchive = true;
|
|
|
+ } else {
|
|
|
+
|
|
|
+ // Need to set heap size before calling main
|
|
|
+ TOTAL_MEMORY = Module["TOTAL_MEMORY"] || TOTAL_MEMORY;
|
|
|
+
|
|
|
+ Module.preloadAll();
|
|
|
+ Progress.removeProgress();
|
|
|
+ Module.callMain(Module.arguments);
|
|
|
+ }
|
|
|
+ },
|
|
|
+
|
|
|
+ // Wrap IDBFS syncfs call with logic to avoid multiple syncs
|
|
|
+ // running at the same time.
|
|
|
+ _startSyncFS: function() {
|
|
|
+ Module._syncInProgress = true;
|
|
|
+
|
|
|
+ if (Module._syncMaxTries > Module._syncTries) {
|
|
|
+ FS.syncfs(false, function(err) {
|
|
|
+ Module._syncInProgress = false;
|
|
|
+
|
|
|
+ if (err) {
|
|
|
+ console.error("Module._startSyncFS error: " + err);
|
|
|
+ Module._syncTries += 1;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (Module._syncNeeded) {
|
|
|
+ Module._syncNeeded = false;
|
|
|
+ Module._startSyncFS();
|
|
|
+ }
|
|
|
+
|
|
|
+ });
|
|
|
+ }
|
|
|
+ },
|
|
|
+};
|
|
|
+
|
|
|
+window.onerror = function(err, url, line, column, errObj) {
|
|
|
+ var errorObject = Module.prepareErrorObject(err, url, line, column, errObj);
|
|
|
+ Module.ccall('JSWriteDump', 'null', ['string'], [JSON.stringify(errorObject.stack)]);
|
|
|
+ Module.setStatus('Exception thrown, see JavaScript console');
|
|
|
+ Module.setStatus = function(text) {
|
|
|
+ if (text) Module.printErr('[post-exception status] ' + text);
|
|
|
+ };
|
|
|
+};
|
Mikael Säker
