This can be configured in registry with DefaultSettings.XPanning and
DefaultSettings.YPanning, which describe the real screen resolution.
DefaultSettings.XResolution and DefaultSettings.YResolution describe
the resolution of the virtual screen.
When changing current devmode, we must not only change ppdev->pdmwDev
pointer, but also update lots of other structures. This work is done by
PDEVOBJ_lChangeDisplaySettings.
CORE-18169
- do not try to remove ppdev from gppdevList if gppdevList is NULL
- do not check (and maybe change) gpmdev, as it should be done only in MDEVOBJ_vDestroy
- store the acceleration level in PDEVOBJ
- when searching a pdev, search a pdev with required acceleration level
- disable some functions when not at full acceleration level
(levels 3 and 5 are not implemented)
This function can create a MDEV for the whole display (maybe containing multiple
PDEVs), or update settings of a specific PDEV.
- call PDEVOBJ_lChangeDisplaySettings when switching to graphics mode.
- modify EngpGetPDEV to search requested PDEV only in current MDEV
This will be used (later) to store the list of all enabled display devices.
Add a global variable gpmdev (should really be stored in DISPLAYINFO structure)
Replace global variable gppdevPrimary by pmdev->ppdevGlobal.
- change first argument to be a PGRAPHICS_DEVICE instead of a device name
- add ldevtype (for now, only LDEV_DEVICE_DISPLAY is allowed)
- always pass a devmode if ldevtype is LDEV_DEVICE_DISPLAY
- insert the ppdev into gppdevList on success
- change callers to adapt them to new rules
- make it return a new allocated PDEVMODEW instead of a pointer into
existing PGRAPHICS_DEVICE (usefull when available display modes can
dynamically change: VirtualBox, RDP, ...)
- update all callers
- Change INIT_FUNCTION and INIT_SECTION to CODE_SEG("INIT") and DATA_SEG("INIT") respectively
- Remove INIT_FUNCTION from function prototypes
- Remove alloc_text pragma calls as they are not needed anymore
This helps when e.g. changing the resolution on the Dell Latitude D531,
which reports that it supports large resolutions (e.g. 1920x1440x32 and
others larger than 1024x768x32) but fails to apply these.
This usually happens because PDEVOBJ_pSurface(), and more precisely
ppdev->pldev->pfn.EnableSurface(), fails for these resolutions.
- PDEVOBJ_bSwitchMode(): Set the new video mode, or restore the original
one in case of failure + release the allocated ppdevTmp if previous
calls fail. Also unlock in reverse order of locking order.
- UserChangeDisplaySettings(): In case PDEVOBJ_pSurface() fails (but has
reverted the original video mode), we still need to refresh the
display since the display may have been messed up.
