[Scummvm-tracker] [ScummVM :: Bugs] #14506: GRAPHICS: Shaders broken(?)

[ScummVM :: Bugs]

#14506: GRAPHICS: Shaders broken(?)
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Reporter:  raziel-  |      Owner:  (none)
    Type:  defect   |     Status:  new
Priority:  normal   |  Component:  Graphics: Scalers
 Version:           |   Keywords:  gui, launcher, shaders
    Game:           |
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 I did a quick test with all the available shaders and found four that
 behave strange or are buggy or wrongly interpreted (you tell me) :-)

 cel/presets/MMJ_Shader_strong.glslp
 -> wobbles from left to right and vice versa in the lower 50% of the
 screen, other disturbances can be seen in the middle of the screen while
 it wobbles

 handheld/console-border/psp-2x.glslp (all of the sizes are affected)
 -> turns the console graphics upside down (see screenshot)

 handheld/simpletex_lcd+gba-color.glslp (also "+gbc-" and all "lcd" shaders
 are affected)
 -> turns the whole screen upside down

 ntsc/artifact-colos.glslp
 -> suddenly turns darker vertically after around 55% of the screen

 All of this is with the test pattern and confirmed on both AmigaOS4 and
 Windows
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Ticket URL: <https://bugs.scummvm.org/ticket/14506>
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