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Comment: Updated as per DOCS-1359
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Table of Contents

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For performance reasons, we recommend against downscaling images. This consumes considerably more resources than either displaying images at their native size or upscaling them.

Memory and Performance

The amount of memory available for HTML applications varies by model and player series:

Series 5 Players

Unlike Series 4 and older players, Series 5 players don’t have pre-allocated graphics and system memory. There are limitations on GPU memory in Chromium so that demanding GPU applications don’t deplete that memory.

Series 4 and Older Players

  • XTx43, XTx44: 512MB for graphics; 512MB for JavaScript

  • XDx33, XDx34: 256MB for graphics; 512MB for JavaScript

  • HDx23/LS423/HO523: 256MB for graphics; 128MB for JavaScript

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GPU rasterization is enabled by default in firmware versions 6.2.x and later. 

Optimized Image Rendering

The image-rendering CSS property can be assigned the optimizeSpeedBS value. Using this value ensures that Chromium uses lower-quality but faster bilinear filtering when scaling images to 50% or less. We recommend using this value with pages that scale a lot of images at runtime.

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  • BrightAuthor:connected: Select Allow JavaScript console in theChromium Debuggingsection of the DWS andEnable Javascript consolein Presentation tab > State Properties > Options. To disable Chromium debugging, uncheck either of these boxes.

  • BrightAuthor: In your BrightAuthor presentation, navigate to File > Presentation Properties > HTML and check the Enable Javascript console box. Note that as of BOS 8.5.31 you will need to also set the enable_web_inspector registry key (in the "html" section) to enable the JavaScript console. See the "inspector_server" in roHtmlWidget for more information.

  • BrightScript: When creating the roHtmlWidget instance, include the inspector_server initialization parameter and specify a port number. Note that as of BOS 8.5.31, you must set the enable_web_inspector registry key to “1” to enable the web inspector for Chromium on the player (if it is set to “0” or nothing, the web inspector is disabled). For example:

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