render: convert tmotion vectors to render basis #11611
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When using `SDL_ConvertEventToRenderCoordinates` with `SDL_EVENT_FINGER_MOTION` events it converts `x` and `y` coordinates but does not convert the the `dx` and the `dy` unlike `xrel` and `yrel` of mouse motion events. This is means that these are rather useless after conversion. This change unifies this behavior between touch and mouse motion events.
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Description
When using
SDL_ConvertEventToRenderCoordinateswithSDL_EVENT_FINGER_MOTIONevents it convertsxandycoordinates but does not convert the thedxand thedyunlikexrelandyrelof mouse motion events. This is means that these are rather useless after conversion. This change unifies this behavior between touch and mouse motion events.Existing Issue(s)
N/A