[Scummvm-tracker] [ScummVM :: Bugs] #11358: SCI: KQ6 blurry text on 3DS Port

[ScummVM :: Bugs]

#11358: SCI: KQ6 blurry text on 3DS Port
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  Reporter:  MarioKartFan    |      Owner:  (none)
      Type:  defect          |     Status:  new
  Priority:  normal          |  Component:  Engine: SCI
Resolution:                  |   Keywords:
      Game:  King's Quest 6  |
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Comment (by bgK):

 The issue is KQ6 runs at 640x400 in hi-resolution mode (the SCI engine
 upscales the 320x200 resources by a factor of 2). The resolution of the
 bottom screen of the 3DS is 320x240. So the 3DS needs to downscale the
 game by a factor of 2. For the downscaled game to look good the texture
 needs to be sampled in the middle of each group of 4 pixels. At some point
 the alignment becomes incorrect and the linear filtering averages pixels
 that did not have the same value before the SCI engine upscaled them.

 It would be nice to fix the issue in the 3DS backend. However, in the
 meantime playing the game with the hi-resolution graphics disabled
 provides a non-blurry experience. The nonsensical situation where the
 engine upscales the graphics only for the backend to downscale them does
 not happen.
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Ticket URL: <https://bugs.scummvm.org/ticket/11358#comment:4>
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