Re: [Gnash-commit] gnash ChangeLog testsuite/misc-ming.all/Makefil...

[zou lunkai]

> Doesn't one of the redesign attempts account for this ?
> One was: "keep info about which static character belongs to each frame"
> mc3 was placed in frame 4 and still alive, we're jumping to frame 5
> so why should we build it again ? I guess its just the 'ratio' thing
> preventing that, right ?
>

The problem is not ratio. It is mc1 and mc3 occupy the same depth.
When jumping back, mc1 need to be constructed again, which need a
depth already occupied by mc3.  We don't know where to place mc1 at
construction time when jumping back.  (Of course, to solve this single
case is not difficult, but it hurts current design)

--zou


On Nov 23, 2007 3:11 PM, strk <address@hidden> wrote:
> On Fri, Nov 23, 2007 at 02:29:02AM +0000, Zou Lunkai wrote:
>
> > +/*
> > + * Timeline:
> > + *
> > + *   Frame  | 1 | 2 | 3 | 4 | 5 | 6 |
> > + *  --------+---+---+---+---+---+---+
> > + *   Event  |   |P  |RP | RP| * | J |
> > + *
> > + *  P = place (by PlaceObject2)
> > + *  R = remove (by RemoveObject2)
> > + *  J = jump
> > + *  * = jump target
> > + *
> > + * Description:
> > + *
> > + *  frame2: place mc1 at depth 100 with ratio 0
> > + *  frame3: remove mc1, place mc2 at depth 100 with ratio 0.1
> > + *  frame4: remove mc2, place mc3 at depth 100 with ratio 0.2
> > + *  frame5: do nothing
> > + *  frame6: jump to frame5
> > + *
> > + * Observed behaviour:
> > + *
> > + *   (1)mc1 constructed and unloaded twice;
> > + *   (2)mc2 constructed and unloaded twice;
> > + *   (3)mc3 constructed only *ONCE*, never unloaded.
> > + *
> > + * Deduction:
> > + *
> > + *   we need a temporary displaylist when jumping back, otherwise cann't 
> > keep mc3 alive
> > + *   in the current design attempt.
> > + *
> > + */
>
> Doesn't one of the redesign attempts account for this ?
> One was: "keep info about which static character belongs to each frame"
> mc3 was placed in frame 4 and still alive, we're jumping to frame 5
> so why should we build it again ? I guess its just the 'ratio' thing
> preventing that, right ?
>
> --strk;
>