[Scummvm-tracker] [ScummVM :: Bugs] #15860: ANDROID: Nexus 7 2012 graphics glitch with Larry 6

[ScummVM :: Bugs]

#15860: ANDROID: Nexus 7 2012 graphics glitch with Larry 6
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Reporter:  ebbi2017  |       Owner:  lephilousophe
    Type:  defect    |      Status:  pending
Priority:  normal    |   Component:  Graphics
 Version:            |  Resolution:  fixed
Keywords:            |        Game:  Leisure Suit Larry 6
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Comment (by lephilousophe):

 Thank you for the test.

 To sum it up, the main difference between 2.5.x and now is that we switch
 from OpenGL ES 1.1 to OpenGL ES 2.0.
 This change brought a new GPU accelerated way to render the 256-color
 games like LSL6.

 After looking at it more, it seems that the Tegra GPU can't work properly
 with this accelerated rendering as It doesn't provide enough precision
 when accessing the textures.

 I see no other option than disabling this acceleration of such platforms.
 It's a shame as it seems that only one color was wrong.

 Could you test this
 [https://drive.google.com/file/d/1m2Agf6K4bnnnA65K5wTg23R1LNUb6Ohc/view?usp=drive_link
 new build] which should switch you back on CPU based rendering for the
 image?
 I don't expect a measurable performance drawback.
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Ticket URL: <https://bugs.scummvm.org/ticket/15860#comment:13>
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