;
; screen.sh
;
; Screen mode information caching
;
; © 1994-1998 Straylight
;

;----- Licensing note -------------------------------------------------------
;
; This file is part of Straylight's Sapphire library.
;
; Sapphire is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 2, or (at your option)
; any later version.
;
; Sapphire is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with Sapphire.  If not, write to the Free Software Foundation,
; 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

;----- Overview -------------------------------------------------------------
;
; Functions provided:
;
;  screen_getInfo
;  screen_cache
;  screen_justChangedMode
;  screen_init

		[	:LNOT::DEF:screen__dfn
		GBLL	screen__dfn

; --- screen_getInfo ---
;
; On entry:	--
;
; On exit:	R0 == pointer to screen information block
;
; Use:		This call returns a pointer to a block of information
;		about the current screen modes.  The format of this block
;		is defined above.

		IMPORT	screen_getInfo

; --- screen_cache ---
;
; On entry:	R12 points to workspace
;
; On exit:	--
;
; Use:		Caches screen information for the current mode.

		IMPORT	screen_cache

; --- screen_justChangedMode ---
;
; On entry:	--
;
; On exit:	CS if last event was a mode change, CC otherwise
;
; Use:		Informs the caller if the last event was a mode change.
;		The system ignores open window requests when making it's
;		decision.

		IMPORT	screen_justChangedMode

; --- screen_init ---
;
; On entry:	--
;
; On exit:	--
;
; Use:		Initialises the screen unit.

		IMPORT	screen_init
		
;----- Data offsets ---------------------------------------------------------

		^	0
screen_xEig	#	4
screen_yEig	#	4
screen_bpp	#	4
screen_width	#	4
screen_height	#	4
screen_dx	#	4
screen_dy	#	4

		]

;----- That's all, folks ----------------------------------------------------

		END