HiDPI support with scaled buffer #3
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Starting to work on #2. We will need to listen for the outputs' scale events, record the scale for each output, then choose the correct scale upon receiving an enter event. Will we need geometry events as well to calculate an initial DPI, or is there a better way to scale the font?
Think about: will we receive the enter before having to attach and commit a buffer that may not be scaled correctly? Should we set initial scale to the max of all outputs so that every frame is perfect?