Details
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Bug
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Resolution: Invalid
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P2: Important
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None
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5.5.0
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None
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Windows 7 64-bit
Description
I'm making a splash screen for a Qt Quick-based game.
Expected behaviour
The splash screen should show and begin to animate before the game starts loading. The output from the attached project should look something like this:
17:538 onStarted: SplashScreen fade in animation started 17:538 onCompleted: SplashScreen item loaded 17:584 ExpensiveJsonType::ExpensiveJsonType: constructing ExpensiveJsonType... 17:738 onStopped: SplashScreen fade in animation finished 18:850 ExpensiveJsonType::ExpensiveJsonType: ... constructed ExpensiveJsonType 18:860 onCompleted: GameScreen item loaded; ready to fade out splash screen 19:096 onStarted: SplashScreen fade out animation started 19:329 onStopped: SplashScreen fade out animation finished
Run the application with QT_MESSAGE_PATTERN set to:
%{time ss:zzz} %{function}: %{message}
In order to get the timing information in the output.
Actual behaviour
The splash screen shows before the game starts loading, but does not start animating until after the game has loaded, and hence the animation takes 1.5 seconds instead of 0.2 seconds to complete.
With the attached project, the output is:
17:538 onStarted: SplashScreen fade in animation started 17:538 onCompleted: SplashScreen item loaded 17:584 ExpensiveJsonType::ExpensiveJsonType: constructing ExpensiveJsonType... 18:850 ExpensiveJsonType::ExpensiveJsonType: ... constructed ExpensiveJsonType 18:860 onCompleted: GameScreen item loaded; ready to fade out splash screen 19:095 onStopped: SplashScreen fade in animation finished 19:096 onStarted: SplashScreen fade out animation started 19:329 onStopped: SplashScreen fade out animation finished
See the attached video.
Note that the fade out animation looks like it runs correctly according to the logs, but is not visible on screen.
I'm using an asynchronous loader because it seems like the right thing to do since loading the game is such a heavy operation, but I guess the animators should work ( ? ) regardless of whether or not the loader is asynchronous, since they themselves are in a separate thread.
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