ref: 600d59e343a0d6529a2cd714bf90b70a107b39d7
parent: 51a5e3389cef401cecd0860e717a5075e715786d
author: Alexei Podtelezhnikov <[email protected]>
date: Wed Sep 2 11:48:03 EDT 2020
[truetype] Reduce Infinality footprint (cont'd). * src/truetype/ttinterp.c (Ins_DELTAP): Shrink variable scope. (Ins_SHPIX, Ins_MIRP): Revise if-logic.
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
2020-09-02 Alexei Podtelezhnikov <[email protected]>
+ [truetype] Reduce Infinality footprint (cont'd).
+
+ * src/truetype/ttinterp.c (Ins_DELTAP): Shrink variable scope.
+ (Ins_SHPIX, Ins_MIRP): Revise if-logic.
+
+2020-09-02 Alexei Podtelezhnikov <[email protected]>
+
[truetype] Reduce Infinality footprint.
* src/truetype/ttinterp.c (Ins_SHPIX, Ins_MSIRP, Ins_MIAP, Ins_MDRP,
--- a/src/truetype/ttinterp.c
+++ b/src/truetype/ttinterp.c
@@ -5756,8 +5756,12 @@
}
else
#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
- if ( SUBPIXEL_HINTING_INFINALITY )
+ if ( SUBPIXEL_HINTING_INFINALITY &&
+ exc->ignore_x_mode )
{+ FT_Int B1, B2;
+
+
/* If not using ignore_x_mode rendering, allow ZP2 move. */
/* If inline deltas aren't allowed, skip ZP2 move. */
/* If using ignore_x_mode rendering, allow ZP2 point move if: */
@@ -5766,75 +5770,57 @@
/* - the glyph is specifically set to allow SHPIX moves */
/* - the move is on a previously Y-touched point */
- if ( exc->ignore_x_mode )
+ /* save point for later comparison */
+ B1 = exc->zp2.cur[point].y;
+
+ if ( exc->face->sph_compatibility_mode )
{- FT_Int B1, B2;
+ if ( exc->sph_tweak_flags & SPH_TWEAK_ROUND_NONPIXEL_Y_MOVES )
+ dy = FT_PIX_ROUND( B1 + dy ) - B1;
+ /* skip post-iup deltas */
+ if ( exc->iup_called &&
+ ( ( exc->sph_in_func_flags & SPH_FDEF_INLINE_DELTA_1 ) ||
+ ( exc->sph_in_func_flags & SPH_FDEF_INLINE_DELTA_2 ) ) )
+ goto Skip;
- /* save point for later comparison */
- if ( exc->GS.freeVector.y != 0 )
- B1 = exc->zp2.cur[point].y;
- else
- B1 = exc->zp2.cur[point].x;
+ if ( !( exc->sph_tweak_flags & SPH_TWEAK_ALWAYS_SKIP_DELTAP ) &&
+ ( ( exc->is_composite && exc->GS.freeVector.y != 0 ) ||
+ ( exc->zp2.tags[point] & FT_CURVE_TAG_TOUCH_Y ) ||
+ ( exc->sph_tweak_flags & SPH_TWEAK_DO_SHPIX ) ) )
+ Move_Zp2_Point( exc, point, 0, dy, TRUE );
- if ( !exc->face->sph_compatibility_mode &&
- exc->GS.freeVector.y != 0 )
+ /* save new point */
+ if ( exc->GS.freeVector.y != 0 )
{- Move_Zp2_Point( exc, point, dx, dy, TRUE );
+ B2 = exc->zp2.cur[point].y;
- /* save new point */
- if ( exc->GS.freeVector.y != 0 )
- {- B2 = exc->zp2.cur[point].y;
-
- /* reverse any disallowed moves */
- if ( ( exc->sph_tweak_flags & SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES ) &&
- ( B1 & 63 ) != 0 &&
- ( B2 & 63 ) != 0 &&
- B1 != B2 )
- Move_Zp2_Point( exc,
- point,
- NEG_LONG( dx ),
- NEG_LONG( dy ),
- TRUE );
- }
+ /* reverse any disallowed moves */
+ if ( ( B1 & 63 ) == 0 &&
+ ( B2 & 63 ) != 0 &&
+ B1 != B2 )
+ Move_Zp2_Point( exc, point, 0, NEG_LONG( dy ), TRUE );
}
- else if ( exc->face->sph_compatibility_mode )
- {- if ( exc->sph_tweak_flags & SPH_TWEAK_ROUND_NONPIXEL_Y_MOVES )
- {- dx = FT_PIX_ROUND( B1 + dx ) - B1;
- dy = FT_PIX_ROUND( B1 + dy ) - B1;
- }
+ }
+ else if ( exc->GS.freeVector.y != 0 )
+ {+ Move_Zp2_Point( exc, point, dx, dy, TRUE );
- /* skip post-iup deltas */
- if ( exc->iup_called &&
- ( ( exc->sph_in_func_flags & SPH_FDEF_INLINE_DELTA_1 ) ||
- ( exc->sph_in_func_flags & SPH_FDEF_INLINE_DELTA_2 ) ) )
- goto Skip;
+ /* save new point */
+ B2 = exc->zp2.cur[point].y;
- if ( !( exc->sph_tweak_flags & SPH_TWEAK_ALWAYS_SKIP_DELTAP ) &&
- ( ( exc->is_composite && exc->GS.freeVector.y != 0 ) ||
- ( exc->zp2.tags[point] & FT_CURVE_TAG_TOUCH_Y ) ||
- ( exc->sph_tweak_flags & SPH_TWEAK_DO_SHPIX ) ) )
- Move_Zp2_Point( exc, point, 0, dy, TRUE );
-
- /* save new point */
- if ( exc->GS.freeVector.y != 0 )
- {- B2 = exc->zp2.cur[point].y;
-
- /* reverse any disallowed moves */
- if ( ( B1 & 63 ) == 0 &&
- ( B2 & 63 ) != 0 &&
- B1 != B2 )
- Move_Zp2_Point( exc, point, 0, NEG_LONG( dy ), TRUE );
- }
- }
- else if ( exc->sph_in_func_flags & SPH_FDEF_TYPEMAN_DIAGENDCTRL )
- Move_Zp2_Point( exc, point, dx, dy, TRUE );
+ /* reverse any disallowed moves */
+ if ( ( exc->sph_tweak_flags & SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES ) &&
+ ( B1 & 63 ) != 0 &&
+ ( B2 & 63 ) != 0 &&
+ B1 != B2 )
+ Move_Zp2_Point( exc,
+ point,
+ NEG_LONG( dx ),
+ NEG_LONG( dy ),
+ TRUE );
}
- else
+ else if ( exc->sph_in_func_flags & SPH_FDEF_TYPEMAN_DIAGENDCTRL )
Move_Zp2_Point( exc, point, dx, dy, TRUE );
}
else
@@ -6317,19 +6303,6 @@
cvt_dist = NEG_LONG( cvt_dist );
}
-#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
- if ( SUBPIXEL_HINTING_INFINALITY &&
- exc->ignore_x_mode &&
- exc->GS.freeVector.y != 0 &&
- ( exc->sph_tweak_flags & SPH_TWEAK_TIMES_NEW_ROMAN_HACK ) )
- {- if ( cur_dist < -64 )
- cvt_dist -= 16;
- else if ( cur_dist > 64 && cur_dist < 84 )
- cvt_dist += 32;
- }
-#endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */
-
/* control value cut-in and round */
if ( ( exc->opcode & 4 ) != 0 )
@@ -6380,6 +6353,15 @@
!( exc->sph_tweak_flags & SPH_TWEAK_NORMAL_ROUND ) )
control_value_cutin = 0;
+ if ( exc->GS.freeVector.y != 0 &&
+ ( exc->sph_tweak_flags & SPH_TWEAK_TIMES_NEW_ROMAN_HACK ) )
+ {+ if ( cur_dist < -64 )
+ cvt_dist -= 16;
+ else if ( cur_dist > 64 && cur_dist < 84 )
+ cvt_dist += 32;
+ }
+
delta = SUB_LONG( cvt_dist, org_dist );
if ( delta < 0 )
delta = NEG_LONG( delta );
@@ -6420,23 +6402,20 @@
}
#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
- if ( SUBPIXEL_HINTING_INFINALITY )
+ if ( SUBPIXEL_HINTING_INFINALITY &&
+ exc->ignore_x_mode &&
+ exc->GS.freeVector.y != 0 )
{FT_Int B1, B2;
- FT_Bool reverse_move = FALSE;
B1 = exc->zp1.cur[point].y;
/* Round moves if necessary */
- if ( exc->ignore_x_mode &&
- exc->GS.freeVector.y != 0 &&
- ( exc->sph_tweak_flags & SPH_TWEAK_ROUND_NONPIXEL_Y_MOVES ) )
+ if ( exc->sph_tweak_flags & SPH_TWEAK_ROUND_NONPIXEL_Y_MOVES )
distance = FT_PIX_ROUND( B1 + distance - cur_dist ) - B1 + cur_dist;
- if ( exc->ignore_x_mode &&
- exc->GS.freeVector.y != 0 &&
- ( exc->opcode & 16 ) == 0 &&
+ if ( ( exc->opcode & 16 ) == 0 &&
( exc->opcode & 8 ) == 0 &&
( exc->sph_tweak_flags & SPH_TWEAK_COURIER_NEW_2_HACK ) )
distance += 64;
@@ -6449,22 +6428,12 @@
B2 = exc->zp1.cur[point].y;
/* Reverse move if necessary */
- if ( exc->ignore_x_mode )
- {- if ( exc->face->sph_compatibility_mode &&
- exc->GS.freeVector.y != 0 &&
+ if ( ( exc->face->sph_compatibility_mode &&
( B1 & 63 ) == 0 &&
- ( B2 & 63 ) != 0 )
- reverse_move = TRUE;
-
- if ( ( exc->sph_tweak_flags & SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES ) &&
- exc->GS.freeVector.y != 0 &&
- ( B2 & 63 ) != 0 &&
- ( B1 & 63 ) != 0 )
- reverse_move = TRUE;
- }
-
- if ( reverse_move )
+ ( B2 & 63 ) != 0 ) ||
+ ( ( exc->sph_tweak_flags & SPH_TWEAK_SKIP_NONPIXEL_Y_MOVES ) &&
+ ( B1 & 63 ) != 0 &&
+ ( B2 & 63 ) != 0 ) )
exc->func_move( exc,
&exc->zp1,
point,
@@ -7150,10 +7119,9 @@
FT_UShort A;
FT_ULong C, P;
FT_Long B;
-#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
- FT_UShort B1, B2;
+#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
if ( SUBPIXEL_HINTING_INFINALITY &&
exc->ignore_x_mode &&
exc->iup_called &&
@@ -7234,6 +7202,9 @@
/* rules, always skipping deltas in subpixel direction. */
else if ( exc->ignore_x_mode && exc->GS.freeVector.y != 0 )
{+ FT_UShort B1, B2;
+
+
/* save the y value of the point now; compare after move */
B1 = (FT_UShort)exc->zp0.cur[A].y;