[ scummvm-Bugs-1323727 ] Screen not redrawing in 32 bit colour mode under Windows
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Tue Oct 11 12:59:29 CEST 2005
Bugs item #1323727, was opened at 2005-10-11 10:59
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Category: Graphics
Group: All Games
Status: Open
Resolution: None
Priority: 5
Submitted By: Paul (captainwibble)
Assigned to: Nobody/Anonymous (nobody)
Summary: Screen not redrawing in 32 bit colour mode under Windows
Initial Comment:
Version 0.7.1
I've noticed a couple of posts on the forum complaining
about "hangs". I've seen the problem on my work's
machine (Windows 2000, Intel 82845G/DL/GE/PE/CV
graphics controller) running ScummVM in a window. It is
not a hang, just a redraw problem.
If my display is set to 32 bit, then the screen doesn't
redraw at all. A redraw can be forced by holding down
shift and escape (bringing up the start menu
continuously and forcing a redraw). Clicking anywhere
on the game menu selection screen causes ScummVM
to exit immediately. If it is manually configured via
the .INI file, the games can be started via the keyboard
and are playable (provided that you keep holding down
shift and escape). Everything works fine in 16 bit colour
mode.
I've done some minimal debugging on this, however I
have found nothing conclusive. loadGFXMode calls
SDL_SetVideoMode to request a 16 bit graphics mode.
SDL_SetVideoMode reports that a 32 bit colour mode
was available. Something somewhere isn't dropping the
colour depth down. The redraw loop runs OK and the
directX blit within SDL doesn't return an error. The
update rectangles look reasonable.
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