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[raster] Clean up sweeping.

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* src/raster/ftraster.c (Draw_Sweep): Zero initialize the working
lists directly and remove unnecessary y-turn checks.
(Init_Linked): Removed.
This commit is contained in:
Alexei Podtelezhnikov 2023-10-22 13:08:36 -04:00
parent 09ae6eb677
commit d1e894b1f1
1 changed files with 7 additions and 31 deletions
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38
src/raster/ftraster.c
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@ -2005,19 +2005,6 @@
/*************************************************************************/
/**************************************************************************
*
* Init_Linked
*
* Initializes an empty linked list.
*/
static void
Init_Linked( TProfileList* l )
{
*l = NULL;
}
/**************************************************************************
*
* InsNew
@ -2625,6 +2612,9 @@
*
* Generic Sweep Drawing routine
*
* Note that this routine is executed with the pool containing at least
* two valid profiles (up and down) and two y-turns (top and bottom).
*
*/
static Bool
@ -2638,17 +2628,11 @@
Long x1, x2, xs, e1, e2;
TProfileList waiting;
TProfileList draw_left, draw_right;
TProfileList waiting = NULL;
TProfileList draw_left = NULL;
TProfileList draw_right = NULL;
/* initialize empty linked lists */
Init_Linked( &waiting );
Init_Linked( &draw_left );
Init_Linked( &draw_right );
/* first, compute min and max Y */
P = ras.fProfile;
@ -2673,13 +2657,6 @@
P = Q;
}
/* check the Y-turns */
if ( ras.numTurns == 0 )
{
ras.error = FT_THROW( Invalid_Outline );
return FAILURE;
}
/* now initialize the sweep */
ras.Proc_Sweep_Init( RAS_VARS min_Y, max_Y );
@ -2699,8 +2676,7 @@
y = min_Y;
y_height = 0;
if ( ras.numTurns > 0 &&
ras.sizeBuff[-ras.numTurns] == min_Y )
if ( ras.sizeBuff[-ras.numTurns] == min_Y )
ras.numTurns--;
while ( ras.numTurns > 0 )