Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 263 insertions, 0 deletions

diff --git a/image/test/unit/test_encoder_png.js b/image/test/unit/test_encoder_png.js
new file mode 100644
index 0000000000..73e91f573f
--- /dev/null
+++ b/image/test/unit/test_encoder_png.js
@@ -0,0 +1,263 @@
+/*
+ * Test for PNG encoding in ImageLib
+ *
+ */
+
+var png1A = {
+  // A 3x3 image, rows are red, green, blue.
+  // RGB format, transparency defaults.
+
+  transparency: null,
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+      stride: 9,
+
+      pixels: [
+        255, 0, 0, 255, 0, 0, 255, 0, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 0,
+        255, 0, 0, 255, 0, 0, 255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAFElEQVQIW2P8zwAFjAwwJiMDjAkANiQDAUpvlioAAAAASUVORK5CYII=",
+};
+
+var png1B = {
+  // A 3x3 image, rows are red, green, blue.
+  // RGB format, transparency=none.
+
+  transparency: "none",
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGB,
+      stride: 9,
+
+      pixels: [
+        255, 0, 0, 255, 0, 0, 255, 0, 0, 0, 255, 0, 0, 255, 0, 0, 255, 0, 0, 0,
+        255, 0, 0, 255, 0, 0, 255,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAFElEQVQIW2P8zwAFjAwwJiMDjAkANiQDAUpvlioAAAAASUVORK5CYII=",
+};
+
+var png2A = {
+  // A 3x3 image, rows are: red, green, blue. Columns are: 0%, 33%, 66% transparent.
+
+  transparency: null,
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 170, 255, 0, 0, 85, 0, 255, 0, 255, 0, 255,
+        0, 170, 0, 255, 0, 85, 0, 0, 255, 255, 0, 0, 255, 170, 0, 0, 255, 85,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAAGUlEQVQIW2P8z8AARAyrQZgRyETiMPyHcwDKCwoAGxxLEQAAAABJRU5ErkJggg==",
+};
+
+var png2B = {
+  // A 3x3 image, rows are: red, green, blue. Columns are: 0%, 33%, 66% transparent,
+  // but transparency will be ignored.
+
+  transparency: "none",
+
+  frames: [
+    {
+      width: 3,
+      height: 3,
+
+      format: Ci.imgIEncoder.INPUT_FORMAT_RGBA,
+      stride: 12,
+
+      pixels: [
+        255, 0, 0, 255, 255, 0, 0, 170, 255, 0, 0, 85, 0, 255, 0, 255, 0, 255,
+        0, 170, 0, 255, 0, 85, 0, 0, 255, 255, 0, 0, 255, 170, 0, 0, 255, 85,
+      ],
+    },
+  ],
+  expected:
+    "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAAFElEQVQIW2P8zwAFjAwwJiMDjAkANiQDAUpvlioAAAAASUVORK5CYII=",
+};
+
+// Main test entry point.
+function run_test() {
+  dump("Checking png1A...\n");
+  run_test_for(png1A);
+  dump("Checking png1B...\n");
+  run_test_for(png1B);
+  dump("Checking png2A...\n");
+  run_test_for(png2A);
+  dump("Checking png2B...\n");
+  run_test_for(png2B);
+}
+
+function run_test_for(input) {
+  var encoder, dataURL;
+
+  encoder = encodeImage(input);
+  dataURL = makeDataURL(encoder, "image/png");
+  Assert.equal(dataURL, input.expected);
+
+  encoder = encodeImageAsync(input);
+  dataURL = makeDataURLFromAsync(encoder, "image/png", input.expected);
+}
+
+function encodeImage(input) {
+  var encoder =
+    Cc["@mozilla.org/image/encoder;2?type=image/png"].createInstance();
+  encoder.QueryInterface(Ci.imgIEncoder);
+
+  var options = "";
+  if (input.transparency) {
+    options += "transparency=" + input.transparency;
+  }
+
+  var frame = input.frames[0];
+  encoder.initFromData(
+    frame.pixels,
+    frame.pixels.length,
+    frame.width,
+    frame.height,
+    frame.stride,
+    frame.format,
+    options
+  );
+  return encoder;
+}
+
+function _encodeImageAsyncFactory(frame, options, encoder) {
+  function finishEncode() {
+    encoder.addImageFrame(
+      frame.pixels,
+      frame.pixels.length,
+      frame.width,
+      frame.height,
+      frame.stride,
+      frame.format,
+      options
+    );
+    encoder.endImageEncode();
+  }
+  return finishEncode;
+}
+
+function encodeImageAsync(input) {
+  var encoder =
+    Cc["@mozilla.org/image/encoder;2?type=image/png"].createInstance();
+  encoder.QueryInterface(Ci.imgIEncoder);
+
+  var options = "";
+  if (input.transparency) {
+    options += "transparency=" + input.transparency;
+  }
+
+  var frame = input.frames[0];
+  encoder.startImageEncode(frame.width, frame.height, frame.format, options);
+
+  do_timeout(50, _encodeImageAsyncFactory(frame, options, encoder));
+  return encoder;
+}
+
+function makeDataURL(encoder, mimetype) {
+  var rawStream = encoder.QueryInterface(Ci.nsIInputStream);
+
+  var stream = Cc["@mozilla.org/binaryinputstream;1"].createInstance();
+  stream.QueryInterface(Ci.nsIBinaryInputStream);
+
+  stream.setInputStream(rawStream);
+
+  var bytes = stream.readByteArray(stream.available()); // returns int[]
+
+  var base64String = toBase64(bytes);
+
+  return "data:" + mimetype + ";base64," + base64String;
+}
+
+function makeDataURLFromAsync(encoder, mimetype, expected) {
+  do_test_pending();
+  var rawStream = encoder.QueryInterface(Ci.nsIAsyncInputStream);
+
+  var currentThread =
+    Cc["@mozilla.org/thread-manager;1"].getService().currentThread;
+
+  var bytes = [];
+
+  var binarystream = Cc["@mozilla.org/binaryinputstream;1"].createInstance();
+  binarystream.QueryInterface(Ci.nsIBinaryInputStream);
+
+  var asyncReader = {
+    onInputStreamReady(stream) {
+      binarystream.setInputStream(stream);
+      var available = 0;
+      try {
+        available = stream.available();
+      } catch (e) {}
+
+      if (available > 0) {
+        bytes = bytes.concat(binarystream.readByteArray(available));
+        stream.asyncWait(this, 0, 0, currentThread);
+      } else {
+        var base64String = toBase64(bytes);
+        var dataURL = "data:" + mimetype + ";base64," + base64String;
+        Assert.equal(dataURL, expected);
+        do_test_finished();
+      }
+    },
+  };
+  rawStream.asyncWait(asyncReader, 0, 0, currentThread);
+}
+
+/* toBase64 copied from extensions/xml-rpc/src/nsXmlRpcClient.js */
+
+/* Convert data (an array of integers) to a Base64 string. */
+const toBase64Table =
+  // eslint-disable-next-line no-useless-concat
+  "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" + "0123456789+/";
+const base64Pad = "=";
+function toBase64(data) {
+  var result = "";
+  var length = data.length;
+  var i;
+  // Convert every three bytes to 4 ascii characters.
+  for (i = 0; i < length - 2; i += 3) {
+    result += toBase64Table[data[i] >> 2];
+    result += toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
+    result += toBase64Table[((data[i + 1] & 0x0f) << 2) + (data[i + 2] >> 6)];
+    result += toBase64Table[data[i + 2] & 0x3f];
+  }
+
+  // Convert the remaining 1 or 2 bytes, pad out to 4 characters.
+  if (length % 3) {
+    i = length - (length % 3);
+    result += toBase64Table[data[i] >> 2];
+    if (length % 3 == 2) {
+      result += toBase64Table[((data[i] & 0x03) << 4) + (data[i + 1] >> 4)];
+      result += toBase64Table[(data[i + 1] & 0x0f) << 2];
+      result += base64Pad;
+    } else {
+      result += toBase64Table[(data[i] & 0x03) << 4];
+      result += base64Pad + base64Pad;
+    }
+  }
+
+  return result;
+}