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[truetype] Reduce zone copying.

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* src/truetype/ttinterp.c (Compute_Point_Displacement): Reduce
zone copying and return reference on demand only.
(Ins_SHP, Ins_SHC, Ins_SHZ): Updated accordingly.
This commit is contained in:
Alexei Podtelezhnikov 2026-04-26 09:38:34 -04:00
parent c8c8b4b8a0
commit 5d1099341f
1 changed files with 15 additions and 24 deletions
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39
src/truetype/ttinterp.c
View file

@ -4923,37 +4923,38 @@
Compute_Point_Displacement( TT_ExecContext exc,
FT_F26Dot6* x,
FT_F26Dot6* y,
TT_GlyphZone zone,
FT_Vector* cur,
FT_UInt* refp )
{
TT_GlyphZoneRec zp;
FT_UShort p;
FT_F26Dot6 d;
TT_GlyphZone zp;
FT_UShort p;
FT_F26Dot6 d;
if ( exc->opcode & 1 )
{
zp = exc->zp0;
zp = &exc->zp0;
p = exc->GS.rp1;
}
else
{
zp = exc->zp1;
zp = &exc->zp1;
p = exc->GS.rp2;
}
if ( BOUNDS( p, zp.n_points ) )
if ( BOUNDS( p, zp->n_points ) )
{
if ( exc->pedantic_hinting )
exc->error = FT_THROW( Invalid_Reference );
*refp = 0;
return FAILURE;
}
*zone = zp;
*refp = p;
/* return reference if zones match */
if ( refp )
*refp = cur == zp->cur ? p
: ~0U; /* nan */
d = PROJECT( zp.cur + p, zp.org + p );
d = PROJECT( zp->cur + p, zp->org + p );
*x = FT_MulFix( d, exc->moveVector.x );
*y = FT_MulFix( d, exc->moveVector.y );
@ -5004,8 +5005,6 @@
FT_Long* args )
{
FT_Long loop = exc->GS.loop;
TT_GlyphZoneRec zp;
FT_UInt refp;
FT_F26Dot6 dx, dy;
FT_UInt point;
@ -5020,7 +5019,7 @@
exc->new_top -= loop;
if ( Compute_Point_Displacement( exc, &dx, &dy, &zp, &refp ) )
if ( Compute_Point_Displacement( exc, &dx, &dy, NULL, NULL ) )
return;
while ( loop-- )
@ -5058,7 +5057,6 @@
Ins_SHC( TT_ExecContext exc,
FT_Long* args )
{
TT_GlyphZoneRec zp;
FT_UInt refp, start, limit, i;
FT_F26Dot6 dx, dy;
@ -5075,12 +5073,9 @@
return;
}
if ( Compute_Point_Displacement( exc, &dx, &dy, &zp, &refp ) )
if ( Compute_Point_Displacement( exc, &dx, &dy, exc->zp2.cur, &refp ) )
return;
if ( zp.cur != exc->zp2.cur )
refp = ~0U; /* nan */
if ( contour == 0 )
start = 0;
else
@ -5111,7 +5106,6 @@
FT_Long* args )
{
FT_Vector* cur;
TT_GlyphZoneRec zp;
FT_UInt refp, i, limit;
FT_F26Dot6 dx, dy;
@ -5136,12 +5130,9 @@
return;
}
if ( Compute_Point_Displacement( exc, &dx, &dy, &zp, &refp ) )
if ( Compute_Point_Displacement( exc, &dx, &dy, cur, &refp ) )
return;
if ( zp.cur != cur )
refp = ~0U; /* nan */
/* XXX: UNDOCUMENTED! SHZ doesn't touch the points. */
if ( dx )
{