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[raster] Eliminate intensive flow checking.

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* src/raster/ftraster.c (Draw_Sweep): Pass the flow increment.
(Increment): Accept the flow increment.
This commit is contained in:
Alexei Podtelezhnikov 2023-11-24 10:23:36 -05:00
parent 63d3a37eb7
commit efbae5476f
1 changed files with 9 additions and 4 deletions
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13
src/raster/ftraster.c
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@ -1913,7 +1913,8 @@
* Bubble sort with immediate restart is good enough and simple.
*/
static void
Increment( PProfileList list )
Increment( PProfileList list,
Int flow )
{
PProfile *old, current, next;
@ -1925,7 +1926,7 @@
current = *old;
if ( --current->height )
{
current->offset += ( current->flags & Flow_Up ) ? 1 : -1;
current->offset += flow;
current->X = current->x[current->offset];
old = &current->link;
}
@ -2267,6 +2268,8 @@
{
*Q = P->link; /* remove */
/* each active list contains profiles with the same flow */
/* left and right are arbitrary, correspond to TrueType */
if ( P->flags & Flow_Up )
InsNew( &draw_left, P );
else
@ -2294,6 +2297,8 @@
Long xs;
/* TrueType should have x2 > x1, but can be opposite */
/* by mistake or in CFF/Type1, fix it then */
if ( x1 > x2 )
{
xs = x1;
@ -2418,8 +2423,8 @@
ras.Proc_Sweep_Step( RAS_VAR );
Increment( &draw_left );
Increment( &draw_right );
Increment( &draw_left, 1 );
Increment( &draw_right, -1 );
}
while ( ++y < y_turn );
}