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gblanker-38.8.lha
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Fade
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blank.c
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C/C++ Source or Header
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1994-12-22
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1KB
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68 lines
/*
* Copyright (c) 1994 Michael D. Bayne.
* All rights reserved.
*
* Please see the documentation accompanying the distribution for distribution
* and disclaimer information.
*/
#include <exec/memory.h>
#include "/includes.h"
#define DELAY 0
#define PERCENT 2
#define TOPSCR 4
#include "Fade_rev.h"
STATIC const UBYTE VersTag[] = VERSTAG;
VOID Defaults( PrefObject *Prefs )
{
Prefs[DELAY].po_Level = 15;
Prefs[PERCENT].po_Level = 75;
Prefs[TOPSCR].po_Active = 0;
}
LONG Blank( PrefObject *Prefs )
{
struct Screen *FScr;
LONG RetVal = OK;
if( FScr = cloneTopScreen( FALSE, Prefs[TOPSCR].po_Active ))
{
LONG ToFrontCount = 0, PctCount, BPG;
LONG Delay = Prefs[DELAY].po_Level + 1;
struct Window *Wnd;
ULONG *ColorTable;
Wnd = BlankMousePointer( FScr );
ColorTable = GetColorTable( FScr );
BPG = AvgBitsPerGun( getTopScreenMode());
PctCount = ( 1L << BPG ) * Prefs[PERCENT].po_Level / 100;
do
{
ToFrontCount++;
WaitTOF();
if( !( ToFrontCount%Delay ) && ( ToFrontCount/Delay ) < PctCount )
FadeAndLoadTable( FScr, BPG, ColorTable, 0 );
if(!( ToFrontCount % 60 ))
ScreenToFront( FScr );
if(!( ToFrontCount % 5 ))
RetVal = ContinueBlanking();
}
while( RetVal == OK );
UnblankMousePointer( Wnd );
CloseScreen( FScr );
}
else
RetVal = FAILED;
return RetVal;
}