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Gecko:CrossProcessLayers: Difference between revisions
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→Important cases on fennec
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= Important cases on fennec = | = Important cases on fennec = | ||
<s>Will the browser process need to see all layers in a content process, or just a single container/image/screen layer?</s> We always want video in their own layers to decouple framerate from content- and browser-process main-thread work. So at minimum, we need to publish a tree consisting of a layer "below" the video and a layer "above" the video. Need plan for optimal performance (responsiveness and frame rate) for the following cases. | <s>Will the browser process need to see all layers in a content process, or just a single container/image/screen layer?</s> We always want video in their own layers to decouple framerate from content- and browser-process main-thread work. So at minimum, we need to publish a tree consisting of a layer "below" the video, the video layer, and a layer "above" the video. Need plan for optimal performance (responsiveness and frame rate) for the following cases. | ||
* '''Panning''': browser immediately translates coords of container layer before delivering event to content process. Content (or browser) later uses event to update region painting heuristics. | * '''Panning''': browser immediately translates coords of container layer before delivering event to content process. Content (or browser) later uses event to update region painting heuristics. | ||