big updat:

- update dependencies
- add webp support and webp conversion for profile images

node_modules/gifuct-js/lib/deinterlace.js

@@ -0,0 +1,35 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.deinterlace = void 0;
+
+/**
+ * Deinterlace function from https://github.com/shachaf/jsgif
+ */
+var deinterlace = function deinterlace(pixels, width) {
+  var newPixels = new Array(pixels.length);
+  var rows = pixels.length / width;
+
+  var cpRow = function cpRow(toRow, fromRow) {
+    var fromPixels = pixels.slice(fromRow * width, (fromRow + 1) * width);
+    newPixels.splice.apply(newPixels, [toRow * width, width].concat(fromPixels));
+  }; // See appendix E.
+
+
+  var offsets = [0, 4, 2, 1];
+  var steps = [8, 8, 4, 2];
+  var fromRow = 0;
+
+  for (var pass = 0; pass < 4; pass++) {
+    for (var toRow = offsets[pass]; toRow < rows; toRow += steps[pass]) {
+      cpRow(toRow, fromRow);
+      fromRow++;
+    }
+  }
+
+  return newPixels;
+};
+
+exports.deinterlace = deinterlace;

node_modules/gifuct-js/lib/index.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.decompressFrames = exports.decompressFrame = exports.parseGIF = void 0;
+
+var _gif = _interopRequireDefault(require("js-binary-schema-parser/lib/schemas/gif"));
+
+var _jsBinarySchemaParser = require("js-binary-schema-parser");
+
+var _uint = require("js-binary-schema-parser/lib/parsers/uint8");
+
+var _deinterlace = require("./deinterlace");
+
+var _lzw = require("./lzw");
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
+
+var parseGIF = function parseGIF(arrayBuffer) {
+  var byteData = new Uint8Array(arrayBuffer);
+  return (0, _jsBinarySchemaParser.parse)((0, _uint.buildStream)(byteData), _gif["default"]);
+};
+
+exports.parseGIF = parseGIF;
+
+var generatePatch = function generatePatch(image) {
+  var totalPixels = image.pixels.length;
+  var patchData = new Uint8ClampedArray(totalPixels * 4);
+
+  for (var i = 0; i < totalPixels; i++) {
+    var pos = i * 4;
+    var colorIndex = image.pixels[i];
+    var color = image.colorTable[colorIndex] || [0, 0, 0];
+    patchData[pos] = color[0];
+    patchData[pos + 1] = color[1];
+    patchData[pos + 2] = color[2];
+    patchData[pos + 3] = colorIndex !== image.transparentIndex ? 255 : 0;
+  }
+
+  return patchData;
+};
+
+var decompressFrame = function decompressFrame(frame, gct, buildImagePatch) {
+  if (!frame.image) {
+    console.warn('gif frame does not have associated image.');
+    return;
+  }
+
+  var image = frame.image; // get the number of pixels
+
+  var totalPixels = image.descriptor.width * image.descriptor.height; // do lzw decompression
+
+  var pixels = (0, _lzw.lzw)(image.data.minCodeSize, image.data.blocks, totalPixels); // deal with interlacing if necessary
+
+  if (image.descriptor.lct.interlaced) {
+    pixels = (0, _deinterlace.deinterlace)(pixels, image.descriptor.width);
+  }
+
+  var resultImage = {
+    pixels: pixels,
+    dims: {
+      top: frame.image.descriptor.top,
+      left: frame.image.descriptor.left,
+      width: frame.image.descriptor.width,
+      height: frame.image.descriptor.height
+    }
+  }; // color table
+
+  if (image.descriptor.lct && image.descriptor.lct.exists) {
+    resultImage.colorTable = image.lct;
+  } else {
+    resultImage.colorTable = gct;
+  } // add per frame relevant gce information
+
+
+  if (frame.gce) {
+    resultImage.delay = (frame.gce.delay || 10) * 10; // convert to ms
+
+    resultImage.disposalType = frame.gce.extras.disposal; // transparency
+
+    if (frame.gce.extras.transparentColorGiven) {
+      resultImage.transparentIndex = frame.gce.transparentColorIndex;
+    }
+  } // create canvas usable imagedata if desired
+
+
+  if (buildImagePatch) {
+    resultImage.patch = generatePatch(resultImage);
+  }
+
+  return resultImage;
+};
+
+exports.decompressFrame = decompressFrame;
+
+var decompressFrames = function decompressFrames(parsedGif, buildImagePatches) {
+  return parsedGif.frames.filter(function (f) {
+    return f.image;
+  }).map(function (f) {
+    return decompressFrame(f, parsedGif.gct, buildImagePatches);
+  });
+};
+
+exports.decompressFrames = decompressFrames;

node_modules/gifuct-js/lib/lzw.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.lzw = void 0;
+
+/**
+ * javascript port of java LZW decompression
+ * Original java author url: https://gist.github.com/devunwired/4479231
+ */
+var lzw = function lzw(minCodeSize, data, pixelCount) {
+  var MAX_STACK_SIZE = 4096;
+  var nullCode = -1;
+  var npix = pixelCount;
+  var available, clear, code_mask, code_size, end_of_information, in_code, old_code, bits, code, i, datum, data_size, first, top, bi, pi;
+  var dstPixels = new Array(pixelCount);
+  var prefix = new Array(MAX_STACK_SIZE);
+  var suffix = new Array(MAX_STACK_SIZE);
+  var pixelStack = new Array(MAX_STACK_SIZE + 1); // Initialize GIF data stream decoder.
+
+  data_size = minCodeSize;
+  clear = 1 << data_size;
+  end_of_information = clear + 1;
+  available = clear + 2;
+  old_code = nullCode;
+  code_size = data_size + 1;
+  code_mask = (1 << code_size) - 1;
+
+  for (code = 0; code < clear; code++) {
+    prefix[code] = 0;
+    suffix[code] = code;
+  } // Decode GIF pixel stream.
+
+
+  var datum, bits, count, first, top, pi, bi;
+  datum = bits = count = first = top = pi = bi = 0;
+
+  for (i = 0; i < npix;) {
+    if (top === 0) {
+      if (bits < code_size) {
+        // get the next byte
+        datum += data[bi] << bits;
+        bits += 8;
+        bi++;
+        continue;
+      } // Get the next code.
+
+
+      code = datum & code_mask;
+      datum >>= code_size;
+      bits -= code_size; // Interpret the code
+
+      if (code > available || code == end_of_information) {
+        break;
+      }
+
+      if (code == clear) {
+        // Reset decoder.
+        code_size = data_size + 1;
+        code_mask = (1 << code_size) - 1;
+        available = clear + 2;
+        old_code = nullCode;
+        continue;
+      }
+
+      if (old_code == nullCode) {
+        pixelStack[top++] = suffix[code];
+        old_code = code;
+        first = code;
+        continue;
+      }
+
+      in_code = code;
+
+      if (code == available) {
+        pixelStack[top++] = first;
+        code = old_code;
+      }
+
+      while (code > clear) {
+        pixelStack[top++] = suffix[code];
+        code = prefix[code];
+      }
+
+      first = suffix[code] & 0xff;
+      pixelStack[top++] = first; // add a new string to the table, but only if space is available
+      // if not, just continue with current table until a clear code is found
+      // (deferred clear code implementation as per GIF spec)
+
+      if (available < MAX_STACK_SIZE) {
+        prefix[available] = old_code;
+        suffix[available] = first;
+        available++;
+
+        if ((available & code_mask) === 0 && available < MAX_STACK_SIZE) {
+          code_size++;
+          code_mask += available;
+        }
+      }
+
+      old_code = in_code;
+    } // Pop a pixel off the pixel stack.
+
+
+    top--;
+    dstPixels[pi++] = pixelStack[top];
+    i++;
+  }
+
+  for (i = pi; i < npix; i++) {
+    dstPixels[i] = 0; // clear missing pixels
+  }
+
+  return dstPixels;
+};
+
+exports.lzw = lzw;