AdjustColor incorrect work with brightness or hue 0 values

[itlancer]

Bug tracker link: Tracker

Problem Description:

When you use AdjustColor and set all it properties then set again brightness or hue to 0 value in result you get that AdjustColor::CalculateFinalFlatArray() method don't change it result.

It's very old bug described even there in 2012 (4 years ago!): http://stackoverflow.com/questions/10172393/as3-adjust-image-colors

It has been tested with many different Flash Player and AIR versions from 10.3 to 22 beta. The same problem in all cases.

It's a big problem for work with filters.

Steps to Reproduce:

1) Create AdjustColor object

2) Set it properties (brightness, contrast, hue and saturation) with values

3) Set again (change) brightness or hue value to 0.

4) get AdjustColor::CalculateFinalFlatArray() method result

Launch code below. Application example with sources attached.

ActionScript 3.0 code:

var adjustColor:AdjustColor = new AdjustColor();

adjustColor.brightness = 50;

adjustColor.contrast = 0;

adjustColor.hue = 0;

adjustColor.saturation = 0;

trace("Before changes:", adjustColor.CalculateFinalFlatArray());//Before changes: 1,0,0,0,50,0,1,0,0,50,0,0,1,0,50,0,0,0,1,0

adjustColor.brightness = 0;

trace("Actual result:", adjustColor.CalculateFinalFlatArray());//Actual result: 1,0,0,0,50,0,1,0,0,50,0,0,1,0,50,0,0,0,1,0

adjustColor = new AdjustColor();

adjustColor.brightness = 0;

adjustColor.contrast = 0;

adjustColor.hue = 0;

adjustColor.saturation = 0;

trace("Expected result:", adjustColor.CalculateFinalFlatArray());//Expected result: 1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0

Actual Result:

1,0,0,0,50,0,1,0,0,50,0,0,1,0,50,0,0,0,1,0

Expected Result:

1,0,0,0,0,0,1,0,0,0,0,0,1,0,0,0,0,0,1,0

Any Workarounds: recreate AdjustColor instead of reuse it:

var adjustColor:AdjustColor = new AdjustColor();

[itlancer]

This issue still exists with latest AIR 27.0.0.116 beta and Animate CC 2017.5

[itlancer]

This issue still exists with latest AIR 29.0.0.96 beta and Animate CC 18.0.1