[Scummvm-tracker] [ScummVM :: Bugs] #12476: GRAPHICS: OPENGL(3D): Switching screen modes erases game graphics.

[ScummVM :: Bugs]

#12476: GRAPHICS: OPENGL(3D): Switching screen modes erases game graphics.
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Reporter:  macca8  |       Owner:  criezy
    Type:  defect  |      Status:  closed
Priority:  normal  |   Component:  Graphics
 Version:          |  Resolution:  duplicate
Keywords:          |        Game:
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Comment (by macca8):

 Even though this has been flagged as a duplicate of #12473, I'm getting a
 different response when the 3D Renderer is set to "OpenGL with shaders",
 so I'm updating this ticket in case it needs to be reopened.

 With #12473, using "OpenGL with shaders" on Linux apparently produces a
 blank black screen when switching between fullscreen and windowed mode.
 On macOS, setting the 3D Renderer to "OpenGL with shaders", then switching
 screen modes in-game, results in an immediate crash with a segmentation
 fault. This crash doesn't occur with daily builds prior to 18 April 2021.

 With regard to using normal 3D OpenGL, attached is a screenshot of the
 Myst3 game screen with the "widescreen mod" engine option disabled, after
 switching between screen modes. In this case, the screen's black borders
 are preserved, but the main screen and inventory items are blank.
 With "widescreen mod" enabled, there's no black borders and inventory
 items are hidden by default, so the result when switching is a completely
 white screen.
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Ticket URL: <https://bugs.scummvm.org/ticket/12476#comment:5>
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