[GPU build] calcFrame() wrong order

[DigiEggz]

In calcFrame(), the isBlitting() check sets the flashRect dimensions to zero in the incorrect order:

if (FlxG.render.isBlitting())
            {
                calcFramePixels();
                _flashRect.x = _flashRect.y = 0;
            }

In the blitting render this causes some alpha effects to not work correctly depending on a few factors. This can be resolved by moving the flashRect assignment to within the calcFramePixels() function.

protected function calcFramePixels():void
        {
            framePixels.copyPixels(_pixels, _flashRect, _flashPointZero);
            _flashRect.x = _flashRect.y = 0;//Reset rectangle before setting colorTransform

            if (_colorTransform != null)
            {
                framePixels.colorTransform(_flashRect, _colorTransform);
            }
        }

[Dovyski]

Have you tried to run this same fix with the GPU render as well? I remember I had some problems making _flashRect to work properly with both blitting and GPU render.

[DigiEggz]

I've run this fix with the GPU render as well and luckily no problems have arose.