[Scummvm-tracker] [ScummVM :: Bugs] #17002: CHAMBER: Assertion fault when launching the CGA version of Chamber of the Sci-Mutant Priestess

ScummVM :: Bugs trac at scummvm.org
Wed Jul 22 16:02:41 UTC 2026


#17002: CHAMBER: Assertion fault when launching the CGA version of Chamber of the
Sci-Mutant Priestess
------------------------------------------------+--------------------------
Reporter:  antoniou79                           |      Owner:  (none)
    Type:  defect                               |     Status:  new
Priority:  normal                               |  Component:  Engine:
                                                |  Chamber
 Version:                                       |   Keywords:
    Game:  Chamber of the Sci-Mutant Priestess  |
------------------------------------------------+--------------------------
 This was tested on Windows 10 x64, with the Steam version of the game, and
 a recent local build of ScummVM from master HEAD.

 The files for the CGA version were copied in a dedicated folder, as listed
 on the wiki, and then the game was added to ScummVM (detected as "Chamber
 of the Sci-Mutant Priestess (DOS/English (US))")

 Upon attempting to launch the game with the default settings, it stumbles
 on an assertion fault and exits abruptly:
 Assertion failed: x + w <= (uint)dstSurf->w, file
 backends/graphics/opengl/texture.cpp, line 52

 As far as I can tell, this happens because the _renderMode is the default
 one and not explicitly set to "CGA". If I override the graphic settings
 and set the render mode to CGA, the game launches without issue.
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/17002>
ScummVM :: Bugs <https://bugs.scummvm.org>
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