[Scummvm-tracker] [ScummVM :: Bugs] #11897: GRIM: Black window/screen on mode switch using SDL1

[ScummVM :: Bugs]

#11897: GRIM: Black window/screen on mode switch using SDL1
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Reporter:  raziel-  |      Owner:  (none)
    Type:  defect   |     Status:  new
Priority:  normal   |  Component:  Engine: Grim
Keywords:           |       Game:  Grim Fandango
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 ResidualVM 0.4.0git (Dec 31 2017 15:41:14)
 Features compiled in: Vorbis MP3 RGB zLib MPEG2 Theora FreeType2 JPEG PNG

 - Start Grim Fandango
 - Press ESC to get right into the game
 - Press F1 to bring up the "menu" (game is paused)
 - Perform a mode switch (ALT+Enter) to switch to/from window/screen
 One will end up with a black screen/window due to, what i think, is a
 missing screen/window redraw command after said mode switch. I guess it's
 not trggered because the game is in pause mode(?)

 Pressing ESC or cursor up/down will trigger a redraw and all is fine
 again, but imho it's a bad idea to leave users with a black
 window/screen...at least i thought residualvm has crashed on me.

 AmigaOS4 - SDL - BE - PPC
 gcc (adtools build 5.4.0) 5.4.0

 https://github.com/residualvm/residualvm/issues/1389

 One funny thing i found out is that the demo displays this problem on both
 SDL1 and SDL2, while the full game suffers only in SDL1 from it.

 Might this be an issue in the original data files?

 I guess the game data affects how this issue occurs, but it's something we
 could fix properly regardless of game version.
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Ticket URL: <https://bugs.scummvm.org/ticket/11897>
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