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< ! DOCTYPE HTML >
< html >
< head >
< meta http - equiv = " Content-Type " content = " text/html;charset=US-ASCII " >
< meta name = " generator " content = " ZealOS V0.05 " >
< style type = " text/css " >
body { background - color : # 000000 ; }
. cF0 { color : # ffffff ; background - color : # 000000 ; }
. cF1 { color : # 3465 a4 ; background - color : # 000000 ; }
. cF2 { color : # 4e9 a06 ; background - color : # 000000 ; }
. cF3 { color : # 06 989 a ; background - color : # 000000 ; }
. cF4 { color : # a24444 ; background - color : # 000000 ; }
. cF5 { color : # 75507 b ; background - color : # 000000 ; }
. cF6 { color : # ce982f ; background - color : # 000000 ; }
. cF7 { color : # bcc0b9 ; background - color : # 000000 ; }
. cF8 { color : # 555753 ; background - color : # 000000 ; }
. cF9 { color : # 729f cf ; background - color : # 000000 ; }
. cFA { color : # 82 bc49 ; background - color : # 000000 ; }
. cFB { color : # 34e2 e2 ; background - color : # 000000 ; }
. cFC { color : # ac3535 ; background - color : # 000000 ; }
. cFD { color : # ad7fa8 ; background - color : # 000000 ; }
. cFE { color : # fce94f ; background - color : # 000000 ; }
. cFF { color : # 000000 ; background - color : # 000000 ; }
< / style >
< / head >
< body >
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< pre style = " font-family:monospace;font-size:12pt " >
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< a name = " l1 " > < / a > < span class = cF0 > # < / span > < span class = cF1 > define < / span > < span class = cF0 > VGAP_IDX < / span > < span class = cFE > 0x3C4 < / span > < span class = cF0 >
< a name = " l2 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > VGAP_DATA < / span > < span class = cFE > 0x3C5 < / span > < span class = cF0 >
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< a name = " l3 " > < / a > # < / span > < span class = cF1 > define < / span > < span class = cF0 > VGAR_MAP_MASK < / span > < span class = cFE > 0x02 < / span > < span class = cF0 >
< a name = " l4 " > < / a >
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< a name = " l5 " > < / a > < / span > < span class = cF1 > U8 < / span > < span class = cF0 > rev [ < / span > < span class = cFE > 256 < / span > < span class = cF0 > ] , < / span > < span class = cF2 > //The VGA bits are backward</span><span class=cF0>
< a name = " l6 " > < / a > image [ < / span > < span class = cFE > 640 < / span > < span class = cF0 > * < / span > < span class = cFE > 480 < / span > < span class = cF0 > / < / span > < span class = cFE > 8 < / span > < span class = cF0 > ] ; < / span > < span class = cF2 > //We need read-modify write.</span><span class=cF0>
< a name = " l7 " > < / a > < / span > < span class = cF2 > //0xA0000 alias memory can't be read.</span><span class=cF0>
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< a name = " l8 " > < / a >
< a name = " l9 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MGInit ( )
< a name = " l10 " > < / a > {
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< a name = " l11 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > i , j ;
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< a name = " l12 " > < / a >
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< a name = " l13 " > < / a > < / span > < span class = cF5 > MemSet < / span > < span class = cF0 > ( image , < / span > < span class = cFE > 0 < / span > < span class = cF0 > , < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF0 > image < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
< a name = " l14 " > < / a > < / span > < span class = cF5 > MemSet < / span > < span class = cF0 > ( rev , < / span > < span class = cFE > 0 < / span > < span class = cF0 > , < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF0 > rev < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ;
< a name = " l15 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; < / span > < span class = cFE > 256 < / span > < span class = cF0 > ; i + + )
< a name = " l16 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( j = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; j & lt ; < / span > < span class = cFE > 8 < / span > < span class = cF0 > ; j + + )
< a name = " l17 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( < / span > < span class = cF5 > Bt < / span > < span class = cF7 > ( < / span > < span class = cF0 > & amp ; i , j < / span > < span class = cF7 > ) < / span > < span class = cF0 > )
< a name = " l18 " > < / a > < / span > < span class = cF5 > Bts < / span > < span class = cF0 > ( & amp ; rev [ i ] , < / span > < span class = cFE > 7 < / span > < span class = cF0 > - j ) ;
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< a name = " l19 " > < / a > }
< a name = " l20 " > < / a >
< a name = " l21 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MGUpdate ( )
< a name = " l22 " > < / a > { < / span > < span class = cF2 > //Copy image to VGA memory</span><span class=cF0>
< a name = " l23 " > < / a > < / span > < span class = cF2 > //For better performance we could only write what's changed.</span><span class=cF0>
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< a name = " l24 " > < / a > < / span > < span class = cF2 > //0xA0000 alias is slower than normal RAM.</span><span class=cF0>
< a name = " l25 " > < / a > < / span > < span class = cF5 > OutU8 < / span > < span class = cF0 > ( VGAP_IDX , VGAR_MAP_MASK ) ;
< a name = " l26 " > < / a > < / span > < span class = cF5 > OutU8 < / span > < span class = cF0 > ( VGAP_DATA , < / span > < span class = cFE > 0xF < / span > < span class = cF0 > ) ; < / span > < span class = cF2 > //All color planes at once -- Black and White</span><span class=cF0>
< a name = " l27 " > < / a > < / span > < span class = cF5 > MemCopy < / span > < span class = cF0 > ( < / span > < span class = cFB > text < / span > < span class = cF0 > . vga_alias , image , < / span > < span class = cF1 > sizeof < / span > < span class = cF7 > ( < / span > < span class = cF0 > image < / span > < span class = cF7 > ) < / span > < span class = cF0 > ) ; < / span > < span class = cF2 > //Alias of 0xA0000</span><span class=cF0>
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< a name = " l28 " > < / a > }
< a name = " l29 " > < / a >
< a name = " l30 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MGPlot ( < / span > < span class = cF9 > I64 < / span > < span class = cF0 > x , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > y )
< a name = " l31 " > < / a > {
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< a name = " l32 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( < / span > < span class = cFE > 0 < / span > < span class = cF0 > & lt ; = x & lt ; < / span > < span class = cFE > 640 < / span > < span class = cF0 > & amp ; & amp ; < / span > < span class = cFE > 0 < / span > < span class = cF0 > & lt ; = y & lt ; < / span > < span class = cFE > 480 < / span > < span class = cF0 > )
< a name = " l33 " > < / a > < / span > < span class = cF5 > Bts < / span > < span class = cF0 > ( image , y * < / span > < span class = cFE > 640 < / span > < span class = cF0 > + x ^ < / span > < span class = cFE > 7 < / span > < span class = cF0 > ) ;
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< a name = " l34 " > < / a > }
< a name = " l35 " > < / a >
< a name = " l36 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MGHLine ( < / span > < span class = cF9 > I64 < / span > < span class = cF0 > x1 , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > x2 , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > y )
< a name = " l37 " > < / a > { < / span > < span class = cF2 > //Warning! No clipping</span><span class=cF0>
< a name = " l38 " > < / a > < / span > < span class = cF2 > //For performance, we do as many whole-bytes as possible.</span><span class=cF0>
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< a name = " l39 " > < / a > < / span > < span class = cF1 > U8 < / span > < span class = cF0 > * ptr ;
< a name = " l40 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > i , w , leading , trailing , whole_bytes ;
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< a name = " l41 " > < / a >
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< a name = " l42 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( x2 & lt ; x1 )
< a name = " l43 " > < / a > < / span > < span class = cF5 > SwapI64 < / span > < span class = cF0 > ( & amp ; x1 , & amp ; x2 ) ;
< a name = " l44 " > < / a > ptr = image + y * < / span > < span class = cFE > 640 < / span > < span class = cF0 > / < / span > < span class = cFE > 8 < / span > < span class = cF0 > + x1 & gt ; & gt ; < / span > < span class = cFE > 3 < / span > < span class = cF0 > ;
< a name = " l45 " > < / a > w = x2 - x1 + < / span > < span class = cFE > 1 < / span > < span class = cF0 > ;
< a name = " l46 " > < / a > leading = < / span > < span class = cFE > 8 < / span > < span class = cF0 > - x1 & amp ; < / span > < span class = cFE > 7 < / span > < span class = cF0 > ;
< a name = " l47 " > < / a > trailing = ( x2 + < / span > < span class = cFE > 1 < / span > < span class = cF0 > ) & amp ; < / span > < span class = cFE > 7 < / span > < span class = cF0 > ;
< a name = " l48 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( leading + trailing & gt ; w )
< a name = " l49 " > < / a > * ptr | = rev [ ( < / span > < span class = cFE > 0xFF00 < / span > < span class = cF0 > & gt ; & gt ; leading & amp ; < / span > < span class = cF7 > ( < / span > < span class = cFE > 0x00FF < / span > < span class = cF0 > & lt ; & lt ; trailing < / span > < span class = cF7 > ) < / span > < span class = cF0 > & gt ; & gt ; < / span > < span class = cFE > 8 < / span > < span class = cF0 > ) ] ;
< a name = " l50 " > < / a > < / span > < span class = cF1 > else < / span > < span class = cF0 >
< a name = " l51 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l52 " > < / a > whole_bytes = ( w - leading - trailing ) & gt ; & gt ; < / span > < span class = cFE > 3 < / span > < span class = cF0 > ;
< a name = " l53 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( leading )
< a name = " l54 " > < / a > * ptr + + | = rev [ ( < / span > < span class = cFE > 0xFF00 < / span > < span class = cF0 > & gt ; & gt ; leading ) & amp ; < / span > < span class = cFE > 0xFF < / span > < span class = cF0 > ] ;
< a name = " l55 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; whole_bytes ; i + + )
< a name = " l56 " > < / a > * ptr + + = < / span > < span class = cFE > 0xFF < / span > < span class = cF0 > ;
< a name = " l57 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( trailing )
< a name = " l58 " > < / a > * ptr + + | = rev [ ( < / span > < span class = cFE > 0x00FF < / span > < span class = cF0 > & lt ; & lt ; trailing ) & gt ; & gt ; < / span > < span class = cFE > 8 < / span > < span class = cF0 > ] ;
< a name = " l59 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
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< a name = " l60 " > < / a > }
< a name = " l61 " > < / a >
< a name = " l62 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MGLine ( < / span > < span class = cF9 > I64 < / span > < span class = cF0 > x1 , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > y1 , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > x2 , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > y2 )
< a name = " l63 " > < / a > { < / span > < span class = cF2 > //Warning! No clipping</span><span class=cF0>
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< a name = " l64 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > dx = x2 - x1 , dy = y2 - y1 ;
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< a name = " l65 " > < / a >
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< a name = " l66 " > < / a > x1 & lt ; & lt ; = < / span > < span class = cFE > 32 < / span > < span class = cF0 > ; x2 & lt ; & lt ; = < / span > < span class = cFE > 32 < / span > < span class = cF0 > ;
< a name = " l67 " > < / a > y1 & lt ; & lt ; = < / span > < span class = cFE > 32 < / span > < span class = cF0 > ; y2 & lt ; & lt ; = < / span > < span class = cFE > 32 < / span > < span class = cF0 > ;
< a name = " l68 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( < / span > < span class = cF5 > AbsI64 < / span > < span class = cF7 > ( < / span > < span class = cF0 > dx < / span > < span class = cF7 > ) < / span > < span class = cF0 > & gt ; < / span > < span class = cF5 > AbsI64 < / span > < span class = cF7 > ( < / span > < span class = cF0 > dy < / span > < span class = cF7 > ) < / span > < span class = cF0 > )
< a name = " l69 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l70 " > < / a > dy = dy & lt ; & lt ; < / span > < span class = cFE > 32 < / span > < span class = cF0 > / < / span > < span class = cF5 > AbsI64 < / span > < span class = cF0 > ( dx ) ;
< a name = " l71 " > < / a > dx = < / span > < span class = cF5 > SignI64 < / span > < span class = cF0 > ( dx ) & lt ; & lt ; < / span > < span class = cFE > 32 < / span > < span class = cF0 > ;
< a name = " l72 " > < / a > < / span > < span class = cF1 > while < / span > < span class = cF0 > ( x1 ! = x2 )
< a name = " l73 " > < / a > {
< a name = " l74 " > < / a > MGPlot ( x1 . i32 [ < / span > < span class = cFE > 1 < / span > < span class = cF0 > ] , y1 . i32 [ < / span > < span class = cFE > 1 < / span > < span class = cF0 > ] ) ;
< a name = " l75 " > < / a > x1 + = dx ; y1 + = dy ;
< a name = " l76 " > < / a > }
< a name = " l77 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l78 " > < / a > < / span > < span class = cF1 > else < / span > < span class = cF0 >
< a name = " l79 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
< a name = " l80 " > < / a > dx = dx & lt ; & lt ; < / span > < span class = cFE > 32 < / span > < span class = cF0 > / < / span > < span class = cF5 > AbsI64 < / span > < span class = cF0 > ( dy ) ;
< a name = " l81 " > < / a > dy = < / span > < span class = cF5 > SignI64 < / span > < span class = cF0 > ( dy ) & lt ; & lt ; < / span > < span class = cFE > 32 < / span > < span class = cF0 > ;
< a name = " l82 " > < / a > < / span > < span class = cF1 > while < / span > < span class = cF0 > ( y1 ! = y2 )
< a name = " l83 " > < / a > {
< a name = " l84 " > < / a > MGPlot ( x1 . i32 [ < / span > < span class = cFE > 1 < / span > < span class = cF0 > ] , y1 . i32 [ < / span > < span class = cFE > 1 < / span > < span class = cF0 > ] ) ;
< a name = " l85 " > < / a > x1 + = dx ;
< a name = " l86 " > < / a > y1 + = dy ;
< a name = " l87 " > < / a > }
< a name = " l88 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
< a name = " l89 " > < / a > MGPlot ( x1 . i32 [ < / span > < span class = cFE > 1 < / span > < span class = cF0 > ] , y1 . i32 [ < / span > < span class = cFE > 1 < / span > < span class = cF0 > ] ) ;
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< a name = " l90 " > < / a > }
< a name = " l91 " > < / a >
< a name = " l92 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MGCircle ( < / span > < span class = cF9 > I64 < / span > < span class = cF0 > x , < / span > < span class = cF9 > I64 < / span > < span class = cF0 > y , < / span > < span class = cF1 > F64 < / span > < span class = cF0 > r )
< a name = " l93 " > < / a > {
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< a name = " l94 " > < / a > < / span > < span class = cF1 > F64 < / span > < span class = cF0 > s , c , x1 , y1 , x2 , y2 ;
< a name = " l95 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > len ;
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< a name = " l96 " > < / a >
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< a name = " l97 " > < / a > < / span > < span class = cF1 > if < / span > < span class = cF0 > ( r & lt ; < / span > < span class = cFE > 0 < / span > < span class = cF0 > )
< a name = " l98 " > < / a > < / span > < span class = cF1 > return < / span > < span class = cF0 > ;
< a name = " l99 " > < / a > x1 = r ;
< a name = " l100 " > < / a > y1 = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ;
< a name = " l101 " > < / a > c = < / span > < span class = cF5 > Cos < / span > < span class = cF0 > ( < / span > < span class = cFE > 1 < / span > < span class = cF0 > / r ) ;
< a name = " l102 " > < / a > s = < / span > < span class = cF5 > Sin < / span > < span class = cF0 > ( < / span > < span class = cFE > 1 < / span > < span class = cF0 > / r ) ;
< a name = " l103 " > < / a > len = < / span > < span class = cFE > 2 < / span > < span class = cF0 > * r * < / span > < span class = cF3 > pi < / span > < span class = cF0 > ;
< a name = " l104 " > < / a > MGPlot ( x + x1 , y + y1 ) ;
< a name = " l105 " > < / a > < / span > < span class = cF1 > while < / span > < span class = cF0 > ( len - - & gt ; = < / span > < span class = cFE > 0 < / span > < span class = cF0 > )
< a name = " l106 " > < / a > < / span > < span class = cF7 > { < / span > < span class = cF0 >
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< a name = " l107 " > < / a >
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< a name = " l108 " > < / a > < / span > < span class = cF2 > //m1@a1 * m2@a2 </span><span class=cF0> </span><span class=cF2>= m1*m2@(arg1+arg2)</span><span class=cF0>
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< a name = " l109 " > < / a >
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< a name = " l110 " > < / a > < / span > < span class = cF2 > //(x1+y1i)*(x2+y2i) = x1*x2+(x1*y1+x2*y2)i-y1*y2</span><span class=cF0>
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< a name = " l111 " > < / a >
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< a name = " l112 " > < / a > < / span > < span class = cF2 > // meti=mCos(t)+imSin(t)</span><span class=cF0>
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< a name = " l113 " > < / a >
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< a name = " l114 " > < / a > x2 = x1 ;
< a name = " l115 " > < / a > y2 = y1 ;
< a name = " l116 " > < / a > x1 = c * x2 - s * y2 ;
< a name = " l117 " > < / a > y1 = s * x2 + c * y2 ;
< a name = " l118 " > < / a > MGPlot ( x + x1 , y + y1 ) ;
< a name = " l119 " > < / a > < / span > < span class = cF7 > } < / span > < span class = cF0 >
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< a name = " l120 " > < / a > }
< a name = " l121 " > < / a >
< a name = " l122 " > < / a >
< a name = " l123 " > < / a > < / span > < span class = cF1 > U0 < / span > < span class = cF0 > MiniGrLibDemo ( )
< a name = " l124 " > < / a > {
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< a name = " l125 " > < / a > < / span > < span class = cF9 > I64 < / span > < span class = cF0 > i ;
< a name = " l126 " > < / a > MGInit ;
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< a name = " l127 " > < / a >
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< a name = " l128 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; < / span > < span class = cFE > 100 < / span > < span class = cF0 > ; i + + )
< a name = " l129 " > < / a > MGHLine ( < / span > < span class = cFE > 200 < / span > < span class = cF0 > + i , < / span > < span class = cFE > 400 < / span > < span class = cF0 > + i , < / span > < span class = cFE > 300 < / span > < span class = cF0 > + i ) ;
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< a name = " l130 " > < / a >
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< a name = " l131 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; < / span > < span class = cFE > 500 < / span > < span class = cF0 > ; i + = < / span > < span class = cFE > 10 < / span > < span class = cF0 > )
< a name = " l132 " > < / a > MGLine ( i , < / span > < span class = cFE > 0 < / span > < span class = cF0 > , < / span > < span class = cFE > 0 < / span > < span class = cF0 > , < / span > < span class = cFE > 480 < / span > < span class = cF0 > - i ) ;
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< a name = " l133 " > < / a >
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< a name = " l134 " > < / a > < / span > < span class = cF1 > for < / span > < span class = cF0 > ( i = < / span > < span class = cFE > 0 < / span > < span class = cF0 > ; i & lt ; < / span > < span class = cFE > 300 < / span > < span class = cF0 > ; i + = < / span > < span class = cFE > 4 < / span > < span class = cF0 > )
< a name = " l135 " > < / a > MGCircle ( < / span > < span class = cFE > 200 < / span > < span class = cF0 > , < / span > < span class = cFE > 100 < / span > < span class = cF0 > + i , i ) ;
< a name = " l136 " > < / a > MGUpdate ;
< a name = " l137 " > < / a > < / span > < span class = cF5 > Busy < / span > < span class = cF0 > ( < / span > < span class = cFE > 1500000 < / span > < span class = cF0 > ) ;
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< a name = " l138 " > < / a > < / span > < span class = cF2 > /*</span><span class=cF0>
< a name = " l139 " > < / a > < / span > < span class = cF2 > We are returning graphics to normal operations under ZealOS . < / span > < span class = cF0 >
< a name = " l140 " > < / a > < / span > < span class = cF2 > It is not normal to by - pass the ZealOS graphcis routines . < / span > < span class = cF0 >
< a name = " l141 " > < / a > < / span > < span class = cF2 > The ZealOS graphics don ' t know VGA has changed . < / span > < span class = cF0 >
< a name = " l142 " > < / a > < / span > < span class = cF2 > This bit tells ZealOS to update whole screen . < / span > < span class = cF0 >
< a name = " l143 " > < / a > < / span > < span class = cF2 > */ < / span > < span class = cF0 >
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< a name = " l144 " > < / a > < / span > < span class = cF2 > //<CTRL-ALT-v> will flush screen VGA cache.</span><span class=cF0>
< a name = " l145 " > < / a > < / span > < span class = cF5 > LFBFlush < / span > < span class = cF0 > ;
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< a name = " l146 " > < / a > }
< a name = " l147 " > < / a >
< a name = " l148 " > < / a > MiniGrLibDemo ; < / span > < / pre > < / body >
< / html >
