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17 Commits

Author SHA1 Message Date
drochner 2a614bc836 add support for 80x40 screens 1999-04-10 14:02:11 +00:00
drochner 00a4d0521a use defopted WSCONS_SUPPORT_PCVTFONTS, refuse to load pcvt fonts if this 
option is not given, suppress complaints in non-debug case
 1999-04-01 11:52:42 +00:00
drochner b2c812d776 set "fontset" variables to 0 if no appropriate font was found for a 
freshly allocated screen, should fix panic if "vga_mapchar()" it
attempted later
 1999-03-22 18:24:23 +00:00
drochner bd047d30a0 complete mapping table for pcvt fonts, make dual-font selection work 
as intended
 1999-02-20 18:27:53 +00:00
drochner dbdaf91650 change the "mapchar" interface to return a "quality" or "match level" 
arguments which allows to find approximations for characters which are
not present in a font
 1999-02-12 11:25:23 +00:00
drochner 23cfea8327 -implement new wscons font handling with separate download and selection 
calls
-support use of 2 fonts simultanously; this costs the ability to
"highlight", ie to use the upper 8 colours
-define screen types "80x25bf" and "80x50bf" which use this ability
-add conditional code to deal with the weird mapping of pcvt's
supplemental fonts
 1999-01-13 16:48:58 +00:00
drochner 98e630dbe0 Allow to deallocate also the currently visible virtual screen (unless 
it is the console).
This requires vva_show_screen() to catch the case where it has no screen
to switch from, ie no need to save the current state.
 1999-01-09 15:29:26 +00:00
augustss 44df4dcc85 Add a wscons display type `unknown' that the generic VGA driver can 
return until someone fixes it for real.
 1998-12-30 13:54:03 +00:00
eeh a2dd74ed79 Merge paddr_t changes into the main branch. 1998-08-13 02:10:37 +00:00
drochner 3d545acb51 Overload the generic "copyrows" function by a private one which implents 
a "fast scroll" by setting the display start in memory.
(Only implemented for "scroll up" because this is more used. "scroll down"
is easy to add.)
This moves the semantics of "copyrows" to something like "moverows";
the contents of the new visible lines at the bottom is undefined.
The emulations can live without the original "copy" semantics.
 1998-07-24 16:20:14 +00:00
drochner 3f10af182d do the charcter mapping in a separate function 1998-06-26 21:05:20 +00:00
drochner bf42a9e321 adapt to wscons changes, treat incoming characters always as ISO 
(ie, convert to IBM)
 1998-06-20 21:55:05 +00:00
drochner 96840772f5 reserve the VGA BIOS area (but don't worry if it fails) 1998-06-12 18:41:01 +00:00
drochner b84dbbb37c Put definitions and subroutines needed for all PC display adapters 
(MGA/GCA and compatibles) into global headers / source files.
Let the VGA driver use them.
 1998-05-28 16:48:40 +00:00
drochner 95bdb660ed Simple screen attribute handling for wscons. 
The graphics device driver passes a "default attribute" for normal text
output to the wscons framework. If the emulation module needs more
attributes (for different "renditions") it can allocate them via a
callback.
For now, only the "sun" emulation makes use of it.
 1998-05-14 20:49:55 +00:00
drochner 0391896c27 Avoid namespace pollution. 1998-04-07 16:35:42 +00:00
drochner 3a43fe7109 initial import of VGA driver backend for use with the new wscons code 1998-03-22 15:11:49 +00:00