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* src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals. 

These produce faster or more optimizable code.
This commit is contained in:
Alexei Podtelezhnikov 2021-03-09 22:14:44 -05:00
parent fedd945c3e
commit 8516849977
2 changed files with 14 additions and 8 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2021-03-09 Alexei Podtelezhnikov <apodtele@gmail.com>
* src/smooth/ftgrays.c (gray_render_line): Rearrange conditionals.
These produce faster or more optimizable code.
2021-03-08 Tim-Philipp Müller <tim@centricular.com>
[meson] Fix 'mmap' handling on Windows.

16
src/smooth/ftgrays.c
View File

@ -912,8 +912,8 @@ typedef ptrdiff_t FT_PtrDist;
/* also easily updated when moving from one cell to the next. */
do
{
if ( prod <= 0 &&
prod - dx * ONE_PIXEL > 0 ) /* left */
if ( prod - dx * ONE_PIXEL > 0 &&
prod <= 0 ) /* left */
{
fx2 = 0;
fy2 = FT_UDIV( -prod, -dx );
@ -924,8 +924,8 @@ typedef ptrdiff_t FT_PtrDist;
fy1 = fy2;
ex1--;
}
else if ( prod - dx * ONE_PIXEL <= 0 &&
prod - dx * ONE_PIXEL + dy * ONE_PIXEL > 0 ) /* up */
else if ( prod - dx * ONE_PIXEL + dy * ONE_PIXEL > 0 &&
prod - dx * ONE_PIXEL <= 0 ) /* up */
{
prod -= dx * ONE_PIXEL;
fx2 = FT_UDIV( -prod, dy );
@ -936,8 +936,8 @@ typedef ptrdiff_t FT_PtrDist;
fy1 = 0;
ey1++;
}
else if ( prod - dx * ONE_PIXEL + dy * ONE_PIXEL <= 0 &&
prod + dy * ONE_PIXEL >= 0 ) /* right */
else if ( prod + dy * ONE_PIXEL >= 0 &&
prod - dx * ONE_PIXEL + dy * ONE_PIXEL <= 0 ) /* right */
{
prod += dy * ONE_PIXEL;
fx2 = ONE_PIXEL;
@ -948,8 +948,8 @@ typedef ptrdiff_t FT_PtrDist;
fy1 = fy2;
ex1++;
}
else /* ( prod + dy * ONE_PIXEL < 0 &&
prod > 0 ) down */
else /* ( prod > 0 &&
prod + dy * ONE_PIXEL < 0 ) down */
{
fx2 = FT_UDIV( prod, -dy );
fy2 = 0;