[Scummvm-tracker] [ScummVM :: Bugs] #17280: MADS: Nebular: Background rendering issues with surfacesdl

[ScummVM :: Bugs]

#17280: MADS: Nebular: Background rendering issues with surfacesdl
------------------------+--------------------------
Reporter:  dwatteau     |      Owner:  (none)
    Type:  defect       |     Status:  new
Priority:  normal       |  Component:  Engine: MADS
 Version:               |   Keywords:
    Game:  Rex Nebular  |
------------------------+--------------------------
 Game version:
 {{{
 User picked target 'nebular' (engine ID 'mads', game ID 'nebular')...
 Running Rex Nebular and the Cosmic Gender Bender (DOS/English)
 section1.hag: 6f725eb38660de8af31ec7cdd628d615, 927222 bytes.
 }}}

 env: macOS 26.7 (aarch64), Apple clang 21, SDL 3.4.16 (from Homebrew).

 ScummVM release: current Git HEAD
 (`454c594583003303b903d4619867b32db8394c72`).

 How to reproduce:

 * build against SDL3, with `--prefer-sdl3`
 * have SDL Surface as the default renderer
 * start a new game of Rex Nebular

 Problem: game backgrounds in the first scene are wrong (see attached
 screenshot).

 It's fine if I switch back to the OpenGL renderer.

 Can't say if it's an engine bug or a backend bug, but SDL Surface is
 usually OK with most other games.

 (Also attaching the configuration file.)
-- 
Ticket URL: <https://bugs.scummvm.org/ticket/17280>
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