[OpenFl 2.0] Pixel values inconstistency

Main.hx

package;

import openfl.Assets;
import openfl.display.Sprite;
import openfl.events.KeyboardEvent;
import openfl.system.System;
#if !flash
import sys.io.File;
#end


class Main extends Sprite {
	
	public function new () 
	{
		super();
		
		var bmd = Assets.getBitmapData("assets/pirate_small.png");
		var ba = bmd.getPixels(bmd.rect);
		var nPixels = 150;
		var px:UInt = 0;
		
		ba.position = 0;
		var baValues = "bytearray [" + ba.length + "]: ";
		for (i in 0...nPixels) {
			px = convert(ba.readUnsignedInt());
			if (px != 0) {	// don't dump pixels with 0 alpha as they work fine once converted
				baValues += " " + StringTools.lpad(StringTools.hex(px), "0", 8);
			}
		}
		
		var vec = bmd.getVector(bmd.rect);
		var vecValues = "vector    [" + vec.length + "]: ";
		for (i in 0...nPixels) {
			px = convert(vec[i]);
			if (px != 0) {	// don't dump pixels with 0 alpha as they work fine once converted
				vecValues += " " + StringTools.lpad(StringTools.hex(px), "0", 8);
			}
		}
		
		var px32Values = "getPixel32       : ";
		for (i in 0...nPixels) {
			px = bmd.getPixel32(nPixels % bmd.width, Std.int(nPixels / bmd.height) * bmd.width);
			px = convert(vec[i]);
			if (px != 0) {	// don't dump pixels with 0 alpha as they work fine once converted
				px32Values += " " + StringTools.lpad(StringTools.hex(px), "0", 8);
			}
		}
		
		var pxValues = "getPixel         : ";
		for (i in 0...nPixels) {
			px = bmd.getPixel(nPixels % bmd.width, Std.int(nPixels / bmd.height) * bmd.width);
			px = convert(vec[i]);
			if (px != 0) {	// don't dump pixels with 0 alpha as they work fine once converted
				pxValues += " " + StringTools.lpad(StringTools.hex(px), "0", 8);
			}
		}
		
		
		trace(baValues);
		trace(vecValues);
		trace(px32Values);
		trace(pxValues);
		
		#if !flash
			File.saveContent("log.txt", baValues + "\n" + vecValues + "\n" + px32Values + "\n" + pxValues);
		#end
		
		quit();
	}
	
	// zero out rgb when alpha is 0 (for consistency with flash)
	public function convert(color:UInt):UInt 
	{
		if (color >> 24 & 0xFF == 0) return 0;
		else return color;
	}
	
	public function quit():Void 
	{
		#if (flash || html5)
			System.exit(1);
		#else
			Sys.exit(1);
		#end
	}
}