[Scummvm-tracker] [ScummVM :: Bugs] #14633: AGS: In daily 2.8.0 builds many games are unplayable and/or affected by graphical glitches or crashes

[ScummVM :: Bugs]

#14633: AGS: In daily 2.8.0 builds many games are unplayable and/or affected by
graphical glitches or crashes
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Reporter:  tag2015  |      Owner:  (none)
    Type:  defect   |     Status:  new
Priority:  blocker  |  Component:  Engine: AGS
 Version:           |   Keywords:
    Game:           |
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 This is an already known issue, I'm opening this bugreport so users are
 aware of the problem, and to track the status of relevant games.

 Daily builds of ScummVM 2.8.0 include optimizations (using processor
 extensions) for the graphics code in the AGS engine, which increase
 noticeably the FPS but also introduce various problems.

 The games have been tested on Win10 with an i7 processor.

 The following games are unplayable. Segfaults occur in
 drawInner4BppWithConv, unless otherwise noted:
 - Strangeland (Steam): Won't even load and crashes silently (gdb reports a
 heap corruption error)
 - Old Skies (Steam Demo): Crashes after the Wadjet Eye logo
 - Rock'n'Roll will never die! (Steam): Crashes during the intro, while the
 two guys are talking
 - The Cat Lady (Steam): Crashes in main menu
 - The Excavation of Hob's Barrow (GOG): Intro works. Crashes in the first
 location (station) while talking to the old woman
 - Murder Cases (Steam Demo): Main menu works. Crashes during intro
 - Downfall (Demo): Crashes when leaving the room
 - Nightmare Frames (Steam): Crashes when starting a new game
 - Unavowed (GOG): Crashed in main menu or during intro
 - 5 Days a Stranger (SE): Crashes during intro
 - King's Quest III (AGDI): Crashes during first talk with the wizard
 (...)

 Other games basically work but may occasionally show glitches (typically
 in the mouse cursor or sprites walkcycles) that may lead to crashes:
 - If on a winter's night... (Steam): Loading "flame" may glitch, game may
 crash with "invalid color depth!"
 - Dreams in Witch House: main character sprite glitches
 - Heroine's Quest: sprite glitches (es. snowflakes)
 - Ben There, Dan That!
 (...)
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Ticket URL: <https://bugs.scummvm.org/ticket/14633>
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