/// <summary>
/// The Post Processor for the common images. How it works:
/// 1. Get the original image dimensions e.g 400x200
/// 2. Get the max size of width and height (in this case 400), then get previous power of two of it i.e 256
/// 3. For android set max size to the POT value, set format to ASTC 8x8
/// 4. For ios set max size to POT * 2, set format to ASTC 8x8
/// </summary>
public static void SetCommonSettings(this TextureImporter importer, SpritePackerData data)
{
int w, h;
importer.GetOriginalImageSize(out w, out h);
int prevPowerOfTwo = System.Math.Max(w, h).PrevPowerOfTwo();
prevPowerOfTwo = prevPowerOfTwo.Clamp(data.minSize, data.maxSize);
// android
importer.OverridePlatformSettings(PlatformAndroid(), data.formatAndroid, prevPowerOfTwo);
// ios
importer.OverridePlatformSettings(PlatformIos(), data.formatIOS, prevPowerOfTwo * 2);
EditorUtility.SetDirty(importer);
importer.SaveAndReimport();
}