58 lines
1.6 KiB
PHP
58 lines
1.6 KiB
PHP
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision$
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;
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; Call of videomode driver's functions
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;
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; (Add in System function 21 (and/or 26) as a subfunction 13)
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;
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; Author: Trans
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; Date: 19.07.2003
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;
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; Include in MeOS kernel and compile with FASM
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;
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uglobal
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old_screen_width dd ?
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old_screen_height dd ?
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endg
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cmp eax,13 ; CALL VIDEOMODE DRIVER FUNCTIONS
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jne .no_vmode_drv_access
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pushd [Screen_Max_X] [Screen_Max_Y]
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popd [old_screen_height] [old_screen_width]
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or eax,-1 ; If driver is absent then eax does not change
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call (VMODE_BASE+0x100) ; Entry point of video driver
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mov [esp+36],eax
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mov [esp+24],ebx
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mov [esp+32],ecx
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; mov [esp+28],edx
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mov eax,[old_screen_width]
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mov ebx,[old_screen_height]
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sub eax,[Screen_Max_X]
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jnz @f
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sub ebx,[Screen_Max_Y]
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jz .resolution_wasnt_changed
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jmp .lp1
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@@: sub ebx,[Screen_Max_Y]
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.lp1: sub [screen_workarea.right],eax
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sub [screen_workarea.bottom],ebx
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call repos_windows
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mov eax, 0
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mov ebx, 0
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mov ecx, [Screen_Max_X]
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mov edx, [Screen_Max_Y]
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call calculatescreen
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.resolution_wasnt_changed:
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ret
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.no_vmode_drv_access:
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