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[Git][freetype/freetype][master] [raster] Clean up sweeping.

From: Alexei Podtelezhnikov (@apodtele)
Subject: [Git][freetype/freetype][master] [raster] Clean up sweeping.
Date: Sun, 22 Oct 2023 17:12:27 +0000

Alexei Podtelezhnikov pushed to branch master at FreeType / FreeType

Commits:

  • d1e894b1
    by Alexei Podtelezhnikov (Алексей Подтележников) at 2023-10-22T13:08:36-04:00 
    [raster] Clean up sweeping.

* src/raster/ftraster.c (Draw_Sweep): Zero initialize the working
lists directly and remove unnecessary y-turn checks.
(Init_Linked): Removed.

1 changed file:

Changes:

  • src/raster/ftraster.c
    ... ... @@ -2005,19 +2005,6 @@
    2005 2005 
       /*************************************************************************/
    2006 2006
    2007 2007
    2008 
    -  /**************************************************************************
    2009 
    -   *
    2010 
    -   * Init_Linked
    2011 
    -   *
    2012 
    -   *   Initializes an empty linked list.
    2013 
    -   */
    2014 
    -  static void
    2015 
    -  Init_Linked( TProfileList*  l )
    2016 
    -  {
    2017 
    -    *l = NULL;
    2018 
    -  }
    2019 
    -
    2020 
    -
    2021 2008 
       /**************************************************************************
    2022 2009 
        *
    2023 2010 
        * InsNew
    ... ... @@ -2625,6 +2612,9 @@
    2625 2612 
        *
    2626 2613 
        * Generic Sweep Drawing routine
    2627 2614 
        *
    2615 
    +   * Note that this routine is executed with the pool containing at least
    2616 
    +   * two valid profiles (up and down) and two y-turns (top and bottom).
    2617 
    +   *
    2628 2618 
        */
    2629 2619
    2630 2620 
       static Bool
    ... ... @@ -2638,16 +2628,10 @@
    2638 2628
    2639 2629 
         Long          x1, x2, xs, e1, e2;
    2640 2630
    2641 
    -    TProfileList  waiting;
    2642 
    -    TProfileList  draw_left, draw_right;
    2643 
    -
    2644 
    -
    2645 
    -    /* initialize empty linked lists */
    2631 
    +    TProfileList  waiting    = NULL;
    2632 
    +    TProfileList  draw_left  = NULL;
    2633 
    +    TProfileList  draw_right = NULL;
    2646 2634
    2647 
    -    Init_Linked( &waiting );
    2648 
    -
    2649 
    -    Init_Linked( &draw_left  );
    2650 
    -    Init_Linked( &draw_right );
    2651 2635
    2652 2636 
         /* first, compute min and max Y */
    2653 2637
    ... ... @@ -2673,13 +2657,6 @@
    2673 2657 
           P = Q;
    2674 2658 
         }
    2675 2659
    2676 
    -    /* check the Y-turns */
    2677 
    -    if ( ras.numTurns == 0 )
    2678 
    -    {
    2679 
    -      ras.error = FT_THROW( Invalid_Outline );
    2680 
    -      return FAILURE;
    2681 
    -    }
    2682 
    -
    2683 2660 
         /* now initialize the sweep */
    2684 2661
    2685 2662 
         ras.Proc_Sweep_Init( RAS_VARS min_Y, max_Y );
    ... ... @@ -2699,8 +2676,7 @@
    2699 2676 
         y        = min_Y;
    2700 2677 
         y_height = 0;
    2701 2678
    2702 
    -    if ( ras.numTurns > 0                     &&
    2703 
    -         ras.sizeBuff[-ras.numTurns] == min_Y )
    2679 
    +    if ( ras.sizeBuff[-ras.numTurns] == min_Y )
    2704 2680 
           ras.numTurns--;
    2705 2681
    2706 2682 
         while ( ras.numTurns > 0 )

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