[GitHub] [guacamole-client] mike-jumper opened a new pull request #446: GUACAMOLE-884: Leverage createImageBitmap() for reading image data where supported.

[GitBox <gi...@apache.org>]

mike-jumper opened a new pull request #446: GUACAMOLE-884: Leverage createImageBitmap() for reading image data where supported.
URL: https://github.com/apache/guacamole-client/pull/446
 
 
   Some browsers suffer from a memory leak when reading image data repeatedly using the `Image` object. Reading from `Blob` objects does not exhibit the same behavior. While reading from `Blob` objects has previously been seen to perform poorly compared to data URIs, this was observed when reading using `createObjectURL()`. The `createImageBitmap()` function appears to perform identically to reading data URIs using `Image`.
   
   This change:
   
   * Updates `drawBlob()` to leverage `createImageBitmap()` where available.
   * Adds a new `drawStream()` function to `Guacamole.Display` which automatically selects between reading from the given stream using data URIs or `Blob` objects depending on what the platform best supports.

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