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freetype2
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This commit is contained in:
Alexei Podtelezhnikov 2013-01-30 20:14:18 -05:00
parent d56e544d65
commit fba917d0e7
1 changed files with 7 additions and 7 deletions
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14
src/base/ftoutln.c
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@ -938,7 +938,7 @@
v_prev = points[last];
v_cur = v_first;
/* compute the incoming normalized vector */
/* compute incoming normalized vector */
in.x = v_cur.x - v_prev.x;
in.y = v_cur.y - v_prev.y;
l_in = FT_Vector_Length( &in );
@ -955,7 +955,7 @@
else
v_next = v_first;
/* compute the outgoing normalized vector */
/* compute outgoing normalized vector */
out.x = v_next.x - v_cur.x;
out.y = v_next.y - v_cur.y;
l_out = FT_Vector_Length( &out );
@ -967,13 +967,13 @@
d = FT_MulFix( in.x, out.x ) + FT_MulFix( in.y, out.y );
/* shift only if turn is less then ~160 degrees */
/* shift only if turn is less than ~160 degrees */
if ( d > -0xF000L )
{
d = d + 0x10000L;
/* shift components are aligned along bisector */
/* and directed according to the outline orientation. */
/* shift components are aligned along lateral bisector */
/* and directed according to the outline orientation. */
shift.x = in.y + out.y;
shift.y = in.x + out.x;
@ -982,14 +982,14 @@
else
shift.y = -shift.y;
/* threshold strength to better handle collapsing segments */
/* restrict shift magnitude to better handle collapsing segments */
q = FT_MulFix( out.x, in.y ) - FT_MulFix( out.y, in.x );
if ( orientation == FT_ORIENTATION_TRUETYPE )
q = -q;
l = FT_MIN( l_in, l_out );
/* non-strict inequality avoids divide-by-zero when q == l == 0 */
/* non-strict inequalities avoid divide-by-zero when q == l == 0 */
if ( FT_MulFix( xstrength, q ) <= FT_MulFix( d, l ) )
shift.x = FT_MulDiv( shift.x, xstrength, d );
else