Re: [Swftools-common] Fuzzy rendering with PNG2SWF

[Jeff Seibert]

Kent, I can confirm this issue - it was bad enough to make me convert  
everything to jpgs and use jpg2swf, which does not have the problem.

If this can be fixed, that would be huge...

Jeff

On May 17, 2009, at 1:19 PM, Kent Briggs wrote:

> I'm testing the Windows version of png2swf to convert 32-bit PNG  
> avatars to SWF files for display in an OpenLaszlo application. The  
> only version of SWFTools that will create a clear SWF is 0.6.1. All  
> newer versions produce a fuzzy rendering in OpenLaszlo.
>
> Using a swfdump tool, one difference I see is that all versions  
> after 0.6.1 are applying a -10,-10 twip (half a pixel) transform to  
> the bitmap whereas 0.6.1 does not. I think this is causing the image  
> to be smoothed when it should not be at 100% scale.
>
> What is the purpose of this 10 twip transform? Below are the SWF  
> dumps for 0.6.1 and 0.9.0.
>
> **** PNG2SWF 0.6.1 ****************************************
> Header
>    FWS
>    version: 5
>    fileLength: 4677
>    Rect [xMin: 0, xMax: 960, yMin: 0, yMax: 960]frameRate: 1
>    frameCount: 1
> End Header
> Background Color Tag: #000000FF
> DefineBitsLossless id_1 w:48 h:48
> DefineShape4 id_2:
>    shape bounds:Rect [xMin: 0, xMax: 960, yMin: 0, yMax: 960]
>    Fill Styles:
>        Bitmap Fill id_1 type: RepeatingBitmap [sx:20.000 r0:0.000  
> r1:0.000  sy:20.000  tx:0  ty:0]
>    Line Styles:
>    Records:
>        Style Change: dx:0 dy:0 fs0:1 fs1:0 ls: 0
>        Line [dx: 960, dy: 0]
>        Line [dx: 0, dy: 960]
>        Line [dx: -960, dy: 0]
>        Line [dx: 0, dy: -960]
>        End Shape
>
> Remove Object: 50
> PlaceObject2 id:2 dp:50 [sx:1.000 r0:0.000  r1:0.000  sy:1.000  tx: 
> 0  ty:0]
> Show Frame
> *************************************************
>
> *** PNG2SWF 0.9.0 ************************************
> Header
>    FWS
>    version: 5
>    fileLength: 4673
>    Rect [xMin: 0, xMax: 960, yMin: 0, yMax: 960]frameRate: 1
>    frameCount: 1
> End Header
> Background Color Tag: #000000FF
> DefineBitsLossless id_1 w:48 h:48
> DefineShape4 id_2:
>    shape bounds:Rect [xMin: 0, xMax: 960, yMin: 0, yMax: 960]
>    Fill Styles:
>        Bitmap Fill id_1 type: ClippedBitmap [sx:20.000 r0:0.000  
> r1:0.000  sy:20.000  tx:-10  ty:-10]
>    Line Styles:
>    Records:
>        Style Change: dx:0 dy:0 fs0:1 fs1:0 ls: 0
>        Line [dx: 960, dy: 0]
>        Line [dx: 0, dy: 960]
>        Line [dx: -960, dy: 0]
>        Line [dx: 0, dy: -960]
>        End Shape
>
> Remove Object: 50
> PlaceObject2 id:2 dp:50
> Show Frame
> *************************************************
>
> --
> Kent Briggs, address@hidden
> Briggs Softworks, http://www.briggsoft.com