[
  {
    "path": "LICENSE",
    "content": "MIT License\n\nCopyright (c) 2017 Saurabh Bhatia\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n"
  },
  {
    "path": "README.md",
    "content": "# makeglb\nConvert glTF to glb\n\nDrag and drop converter accepts a .gltf file and related geometry or textures and creates a self contained .glb\n\nhttp://sbtron.github.io/makeglb\n"
  },
  {
    "path": "index.html",
    "content": "<html>\r\n  <head>\r\n  <Title>Make glb</Title>\r\n  <style>\r\n .area {\r\n  width: 45em;\r\n  padding: 15px;\r\n  border: 1px solid #333;\r\n  background: rgba(0,0,0,0.7);\r\n}\r\n#drop_zone {\r\n  border: 2px dashed #bbb;\r\n  -webkit-border-radius: 5px;\r\n  border-radius: 5px;\r\n  padding: 50px;\r\n  text-align: center;\r\n  font: 21pt bold arial;\r\n  color: #bbb;\r\n}\r\n\r\n  </style>\r\n  </head>\r\n<body>\r\n<div class=\"area\">\r\n    <div id=\"drop_zone\">Drop all files and folders for your glTF asset here</div>\r\n</div>\r\n<div id=\"download\">\r\n    <a href=\"#\" id=\"downloadLink\"></a>\r\n</div>\r\n<div>\r\n    <ul id=list></ul></div>\r\n<script>\r\n\r\n\r\n  var files=[];\r\n  var fileblobs=[];\r\n  var gltf;\r\n  var remainingfilestoprocess=0;\r\n  var glbfilename;\r\n\r\n  var outputBuffers;\r\n  var bufferMap;\r\n  var bufferOffset;\r\n\r\n\r\n  function handleDragOver(event) {\r\n    event.stopPropagation();\r\n    event.preventDefault();\r\n    event.dataTransfer.dropEffect = 'copy';\r\n  }\r\n\r\n\r\n  var dropZone = document.getElementById('drop_zone');\r\n  dropZone.addEventListener('dragover', handleDragOver, false);\r\n  dropZone.addEventListener('drop', handleFileSelect, false);\r\n\r\n\r\n  function addDownloadButton() {\r\n    var btn = document.createElement(\"button\");\r\n    btn.id=\"downloadBtn\";\r\n    btn.disabled=true;\r\n    btn.onclick= startDownload;\r\n    btn.appendChild(document.createTextNode(\"Processing...\"));\r\n    document.getElementById(\"download\").appendChild(btn);\r\n  }\r\n\r\n  function startDownload(){\r\n      document.getElementById(\"downloadLink\").click();\r\n  }\r\n\r\n  function handleFileSelect(event) {\r\n    event.stopPropagation();\r\n    event.preventDefault();\r\n    document.getElementById('list').innerHTML=\"\";\r\n    addDownloadButton();\r\n    var items = event.dataTransfer.items;\r\n    remainingfilestoprocess=items.length;\r\n    for (var i=0; i<items.length; i++) {\r\n      if (items[i].getAsEntry) {\r\n      var entry = items[i].getAsEntry();\r\n       } else if (items[i].webkitGetAsEntry) {\r\n       var entry = items[i].webkitGetAsEntry();\r\n      }\r\n      if (entry) {\r\n          traverseFileTree(entry);\r\n      }\r\n    }\r\n  }\r\n\r\n  function traverseFileTree(item, path) {\r\n  path = path || \"\";\r\n  if (item.isFile) {\r\n    item.file(function(file) {\r\n        files.push(file);\r\n        var fileitem = '<li><strong>'+ escape(file.name)+ '</strong> ('+ file.type + ') - '+\r\n                  file.size+ ' bytes, last modified: '+ file.lastModifiedDate +\r\n                  '</li>';\r\n        document.getElementById('list').innerHTML += fileitem;\r\n\r\n        var extension = file.name.split('.').pop();\r\n        if ( extension === \"gltf\")\r\n          {\r\n            glbfilename=file.name.substr(file.name.lastIndexOf('/')+1,file.name.lastIndexOf('.'));\r\n          var reader = new FileReader();\r\n          reader.readAsText(file);\r\n          reader.onload = function(event) {\r\n            gltf = JSON.parse(event.target.result);\r\n            checkRemaining();\r\n            };\r\n        }\r\n        else{\r\n          var reader = new FileReader();\r\n          reader.onload = (function(theFile) {\r\n          return function(e) {\r\n          fileblobs[theFile.name.toLowerCase()]=(e.target.result);\r\n          checkRemaining();\r\n          };\r\n        })(file);\r\n        reader.readAsArrayBuffer(file);\r\n      }\r\n    },function(error){\r\n        console.log(error);\r\n    });\r\n  } else if (item.isDirectory) {\r\n    var dirReader = item.createReader();\r\n    dirReader.readEntries(function(entries) {\r\n        remainingfilestoprocess+=entries.length;\r\n        checkRemaining();\r\n      for (var i=0; i<entries.length; i++) {\r\n        traverseFileTree(entries[i], path + item.name + \"/\");\r\n      }\r\n    });\r\n  }\r\n}\r\n\r\nfunction checkRemaining(){\r\n    remainingfilestoprocess--;\r\n    if(remainingfilestoprocess===0){\r\n      outputBuffers = [];\r\n      bufferMap = new Map();\r\n      bufferOffset = 0;\r\n      processBuffers().then(fileSave);\r\n    }\r\n}\r\n\r\nfunction processBuffers(){\r\n  var pendingBuffers = gltf.buffers.map(function (buffer, bufferIndex) {\r\n    return dataFromUri(buffer)\r\n      .then(function(data) {\r\n        if (data !== undefined) {\r\n          outputBuffers.push(data);\r\n        }\r\n        delete buffer.uri;\r\n        buffer.byteLength = data.byteLength;\r\n        bufferMap.set(bufferIndex, bufferOffset);\r\n        bufferOffset += alignedLength(data.byteLength);\r\n      });\r\n  });\r\n\r\n  return Promise.all(pendingBuffers)\r\n    .then(function() {\r\n        var bufferIndex = gltf.buffers.length;\r\n        var images = gltf.images || [];\r\n        var pendingImages = images.map(function (image) {\r\n          return dataFromUri(image).then(function(data) {\r\n            if (data === undefined) {\r\n                delete image['uri'];\r\n                return;\r\n            }\r\n            var bufferView = {\r\n                buffer: 0,\r\n                byteOffset: bufferOffset,\r\n                byteLength: data.byteLength,\r\n            };\r\n            bufferMap.set(bufferIndex, bufferOffset);\r\n            bufferIndex++;\r\n            bufferOffset += alignedLength(data.byteLength);\r\n            var bufferViewIndex = gltf.bufferViews.length;\r\n            gltf.bufferViews.push(bufferView);\r\n            outputBuffers.push(data);\r\n            image['bufferView'] = bufferViewIndex;\r\n            image['mimeType'] = getMimeType(image.uri);\r\n            delete image['uri'];\r\n          });\r\n        });\r\n        return Promise.all(pendingImages);\r\n    });\r\n}\r\n\r\nfunction fileSave(){\r\n    var Binary = {\r\n        Magic: 0x46546C67\r\n    };\r\n\r\n    for (var _i = 0, _a = gltf.bufferViews; _i < _a.length; _i++) {\r\n        var bufferView = _a[_i];\r\n        if(bufferView.byteOffset=== undefined){\r\n            bufferView.byteOffset=0;\r\n        }\r\n        else{\r\n        bufferView.byteOffset = bufferView.byteOffset + bufferMap.get(bufferView.buffer);\r\n      }\r\n        bufferView.buffer = 0;\r\n    }\r\n    var binBufferSize = bufferOffset;\r\n    gltf.buffers = [{\r\n        byteLength: binBufferSize\r\n    }];\r\n\r\n    var enc = new TextEncoder();\r\n    var jsonBuffer = enc.encode(JSON.stringify(gltf));\r\n    var jsonAlignedLength = alignedLength(jsonBuffer.length);\r\n    var padding;\r\n    if (jsonAlignedLength !== jsonBuffer.length) {\r\n\r\n        padding = jsonAlignedLength- jsonBuffer.length;\r\n    }\r\n    var totalSize = 12 + // file header: magic + version + length\r\n        8 + // json chunk header: json length + type\r\n        jsonAlignedLength +\r\n        8 + // bin chunk header: chunk length + type\r\n        binBufferSize;\r\n    var finalBuffer = new ArrayBuffer(totalSize);\r\n    var dataView = new DataView(finalBuffer);\r\n    var bufIndex = 0;\r\n    dataView.setUint32(bufIndex, Binary.Magic, true);\r\n    bufIndex += 4;\r\n    dataView.setUint32(bufIndex, 2, true);\r\n    bufIndex += 4;\r\n    dataView.setUint32(bufIndex, totalSize, true);\r\n    bufIndex += 4;\r\n    // JSON\r\n    dataView.setUint32(bufIndex, jsonAlignedLength, true);\r\n    bufIndex += 4;\r\n    dataView.setUint32(bufIndex, 0x4E4F534A, true);\r\n    bufIndex += 4;\r\n\r\n    for (var j=0;j<jsonBuffer.length;j++){\r\n        dataView.setUint8(bufIndex, jsonBuffer[j]);\r\n        bufIndex++;\r\n    }\r\n    if(padding!==undefined){\r\n        for (var j=0;j<padding;j++){\r\n            dataView.setUint8(bufIndex, 0x20);\r\n        bufIndex++;\r\n    }\r\n    }\r\n\r\n    // BIN\r\n    dataView.setUint32(bufIndex, binBufferSize, true);\r\n    bufIndex += 4;\r\n    dataView.setUint32(bufIndex, 0x004E4942, true);\r\n    bufIndex += 4;\r\n    for (var i = 0; i < outputBuffers.length; i++) {\r\n      var bufoffset = bufIndex + bufferMap.get(i);\r\n      var buf = new Uint8Array(outputBuffers[i]);\r\n      var thisbufindex=bufoffset;\r\n      for (var j=0;j<buf.byteLength;j++){\r\n        dataView.setUint8(thisbufindex, buf[j]);\r\n        thisbufindex++;\r\n    }\r\n    }\r\n    var a = document.getElementById(\"downloadLink\");\r\n    var file = new Blob([finalBuffer],{type: 'model/json-binary'})\r\n    a.href = URL.createObjectURL(file);\r\n    a.download = glbfilename+\".glb\";\r\n    document.getElementById(\"downloadBtn\").disabled=false;\r\n    document.getElementById(\"downloadBtn\").textContent=\"Download .glb\";\r\n    a.click();\r\n}\r\n\r\n\r\nfunction isBase64(uri) {\r\n    return uri.length < 5 ? false : uri.substr(0, 5) === \"data:\";\r\n}\r\nfunction decodeBase64(uri) {\r\n    return fetch(uri).then(function(response) { return response.arrayBuffer(); });\r\n}\r\nfunction dataFromUri(buffer) {\r\n    if (buffer.uri === undefined) {\r\n      return Promise.resolve(undefined);\r\n    } else if (isBase64(buffer.uri)) {\r\n      return decodeBase64(buffer.uri);\r\n    } else {\r\n      var filename=buffer.uri.substr(buffer.uri.lastIndexOf('/')+1);\r\n      return Promise.resolve(fileblobs[filename.toLowerCase()]);\r\n    }\r\n}\r\nfunction alignedLength(value) {\r\n    var alignValue = 4;\r\n    if (value == 0) {\r\n        return value;\r\n    }\r\n    var multiple = value % alignValue;\r\n    if (multiple === 0) {\r\n        return value;\r\n    }\r\n    return value + (alignValue - multiple);\r\n}\r\n\r\nfunction getMimeType(filename) {\r\n    for (var mimeType in gltfMimeTypes) {\r\n        for (var extensionIndex in gltfMimeTypes[mimeType]) {\r\n            var extension = gltfMimeTypes[mimeType][extensionIndex];\r\n            if (filename.toLowerCase().endsWith('.' + extension)) {\r\n                return mimeType;\r\n            }\r\n        }\r\n    }\r\n    return 'application/octet-stream';\r\n}\r\n\r\nvar gltfMimeTypes = {\r\n    'image/png': ['png'],\r\n    'image/jpeg': ['jpg', 'jpeg'],\r\n    'text/plain': ['glsl', 'vert', 'vs', 'frag', 'fs', 'txt'],\r\n    'image/vnd-ms.dds': ['dds']\r\n};\r\n\r\n</script>\r\n</body>\r\n</html>\r\n"
  }
]