Commit a8bc49e14167c167370109a9022360c9cdc1b838
2014-08-24T22:14:01
[truetype] Optimize DELTAP and DELTAC. * src/truetype/ttinterp.c (Ins_DELTAP, Ins_DELTAC): Move ppem calculations outside of the loop.
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diff --git a/ChangeLog b/ChangeLog
index 4c504df..16dbaaf 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2014-08-24 Alexei Podtelezhnikov <apodtele@gmail.com>
+
+ [truetype] Optimize DELTAP and DELTAC.
+
+ * src/truetype/ttinterp.c (Ins_DELTAP, Ins_DELTAC): Move ppem
+ calculations outside of the loop.
+
2014-08-21 Alexei Podtelezhnikov <apodtele@gmail.com>
Fix Savannah bug #43033.
diff --git a/src/truetype/ttinterp.c b/src/truetype/ttinterp.c
index 9491533..dd75cce 100644
--- a/src/truetype/ttinterp.c
+++ b/src/truetype/ttinterp.c
@@ -7487,9 +7487,9 @@
static void
Ins_DELTAP( INS_ARG )
{
- FT_ULong k, nump;
+ FT_ULong nump, k;
FT_UShort A;
- FT_ULong C;
+ FT_ULong C, P;
FT_Long B;
#ifdef TT_CONFIG_OPTION_SUBPIXEL_HINTING
FT_UShort B1, B2;
@@ -7523,6 +7523,7 @@
}
#endif
+ P = (FT_ULong)CURRENT_Ppem();
nump = (FT_ULong)args[0]; /* some points theoretically may occur more
than once, thus UShort isn't enough */
@@ -7567,7 +7568,7 @@
C += CUR.GS.delta_base;
- if ( CURRENT_Ppem() == (FT_Long)C )
+ if ( P == C )
{
B = ( (FT_ULong)B & 0xF ) - 8;
if ( B >= 0 )
@@ -7667,7 +7668,7 @@
Ins_DELTAC( INS_ARG )
{
FT_ULong nump, k;
- FT_ULong A, C;
+ FT_ULong A, C, P;
FT_Long B;
@@ -7691,6 +7692,7 @@
}
#endif
+ P = (FT_ULong)CURRENT_Ppem();
nump = (FT_ULong)args[0];
for ( k = 1; k <= nump; k++ )
@@ -7736,7 +7738,7 @@
C += CUR.GS.delta_base;
- if ( CURRENT_Ppem() == (FT_Long)C )
+ if ( P == C )
{
B = ( (FT_ULong)B & 0xF ) - 8;
if ( B >= 0 )