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[truetype] Speed up IUP. 

* src/truetype/ttinterp.c (_iup_worker_interpolate): Separate trivial
snapping to the same position from true interpolation.
This commit is contained in:
Alexei Podtelezhnikov 2015-04-27 22:27:00 -04:00
parent b6c511d9d0
commit 40623a1f3a
2 changed files with 22 additions and 10 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2015-04-27 Alexei Podtelezhnikov <apodtele@gmail.com>
[truetype] Speed up IUP.
* src/truetype/ttinterp.c (_iup_worker_interpolate): Separate trivial
snapping to the same position from true interpolation.
2015-04-21 Werner Lemberg <wl@gnu.org> 2015-04-21 Werner Lemberg <wl@gnu.org>
[autofit] By default, enable warping code but switch off warping. [autofit] By default, enable warping code but switch off warping.

25
src/truetype/ttinterp.c
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@ -6783,7 +6783,7 @@
FT_UInt ref2 ) FT_UInt ref2 )
{ {
FT_UInt i; FT_UInt i;
FT_F26Dot6 orus1, orus2, org1, org2, delta1, delta2; FT_F26Dot6 orus1, orus2, org1, org2, cur1, cur2, delta1, delta2;
if ( p1 > p2 ) if ( p1 > p2 )
@ -6813,12 +6813,15 @@
org1 = worker->orgs[ref1].x; org1 = worker->orgs[ref1].x;
org2 = worker->orgs[ref2].x; org2 = worker->orgs[ref2].x;
delta1 = worker->curs[ref1].x - org1; cur1 = worker->curs[ref1].x;
delta2 = worker->curs[ref2].x - org2; cur2 = worker->curs[ref2].x;
delta1 = cur1 - org1;
delta2 = cur2 - org2;
if ( orus1 == orus2 ) if ( cur1 == cur2 || orus1 == orus2 )
{ {
/* simple shift of untouched points */
/* trivial snap or shift of untouched points */
for ( i = p1; i <= p2; i++ ) for ( i = p1; i <= p2; i++ )
{ {
FT_F26Dot6 x = worker->orgs[i].x; FT_F26Dot6 x = worker->orgs[i].x;
@ -6826,9 +6829,13 @@
if ( x <= org1 ) if ( x <= org1 )
x += delta1; x += delta1;
else
else if ( x >= org2 )
x += delta2; x += delta2;
else
x = cur1;
worker->curs[i].x = x; worker->curs[i].x = x;
} }
} }
@ -6855,12 +6862,10 @@
if ( !scale_valid ) if ( !scale_valid )
{ {
scale_valid = 1; scale_valid = 1;
scale = FT_DivFix( org2 + delta2 - ( org1 + delta1 ), scale = FT_DivFix( cur2 - cur1, orus2 - orus1 );
orus2 - orus1 );
} }
x = ( org1 + delta1 ) + x = cur1 + FT_MulFix( worker->orus[i].x - orus1, scale );
FT_MulFix( worker->orus[i].x - orus1, scale );
} }
worker->curs[i].x = x; worker->curs[i].x = x;
} }