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[raster] Sweep polishing. 

* src/raster/ftraster.c (*_Sweep_Span): Polish.
(*_Sweep_Drop): Restore tracing, polish.
(Draw_Sweep): Simplify the dropout processing loop.
This commit is contained in:
Alexei Podtelezhnikov 2023-11-21 15:16:56 +00:00
parent da8e428977
commit d77dd24b41
1 changed files with 18 additions and 17 deletions
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35
src/raster/ftraster.c
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@ -1989,7 +1989,8 @@
FT_F26Dot6 x1,
FT_F26Dot6 x2 )
{
Int e1, e2;
Int e1 = (Int)TRUNC( CEILING( x1 ) );
Int e2 = (Int)TRUNC( FLOOR( x2 ) );
FT_UNUSED( y );
@ -1999,12 +2000,9 @@
ras.precision_bits, (double)x1 / (double)ras.precision,
ras.precision_bits, (double)x2 / (double)ras.precision ));
e1 = (Int)TRUNC( CEILING( x1 ) );
e2 = (Int)TRUNC( FLOOR( x2 ) );
if ( e2 >= 0 && e1 <= ras.bRight )
{
Byte* target;
PByte target;
Int c1, f1, c2, f2;
@ -2066,19 +2064,22 @@
/* otherwise check that the other pixel isn't set */
else if ( e2 >=0 && e2 <= ras.bRight )
{
c1 = (Int)( e2 >> 3 );
f1 = (Int)( e2 & 7 );
c1 = e2 >> 3;
f1 = 0x80 >> ( e2 & 7 );
if ( ras.bLine[c1] & ( 0x80 >> f1 ) )
if ( ras.bLine[c1] & f1 )
return;
}
if ( e1 >= 0 && e1 <= ras.bRight )
{
c1 = (Int)( e1 >> 3 );
f1 = (Int)( e1 & 7 );
c1 = e1 >> 3;
f1 = 0x80 >> ( e1 & 7 );
ras.bLine[c1] |= 0x80 >> f1;
FT_TRACE7(( " y=%d x=%d%s\n", y, e1,
ras.bLine[c1] & f1 ? " redundant" : "" ));
ras.bLine[c1] |= f1;
}
}
@ -2115,7 +2116,8 @@
FT_F26Dot6 x1,
FT_F26Dot6 x2 )
{
Long e1, e2;
Long e1 = CEILING( x1 );
Long e2 = FLOOR( x2 );
FT_TRACE7(( " x=%d y=[% .*f;% .*f]",
@ -2129,8 +2131,6 @@
/* */
/* XXX: Can we handle horizontal lines better and drop this? */
e1 = CEILING( x1 );
if ( x1 == e1 )
{
e1 = TRUNC( e1 );
@ -2151,8 +2151,6 @@
}
}
e2 = FLOOR ( x2 );
if ( x2 == e2 )
{
e2 = TRUNC( e2 );
@ -2209,6 +2207,9 @@
bits = ras.bOrigin + ( y >> 3 ) - e1 * ras.bPitch;
f1 = 0x80 >> ( y & 7 );
FT_TRACE7(( " x=%d y=%d%s\n", y, e1,
*bits & f1 ? " redundant" : "" ));
*bits |= f1;
}
}
@ -2402,7 +2403,7 @@
P_Left = draw_left;
P_Right = draw_right;
while ( dropouts && P_Left && P_Right )
while ( dropouts )
{
if ( P_Left->flags & Dropout )
{