using UnityEngine;

namespace Gs2.Editor.ResourceTree.Core
{
    public static class TextureExt
    {
        public static Texture2D ToTexture2D(this Texture self) {
            var sw = self.width;
            var sh = self.height;
            var format = TextureFormat.RGBA32;
            var result = new Texture2D(sw, sh, format, false);
            var currentRT = RenderTexture.active;
            var rt = new RenderTexture(sw, sh, 32);
            Graphics.Blit(self, rt);
            RenderTexture.active = rt;
            var source = new Rect(0, 0, rt.width, rt.height);
            result.ReadPixels(source, 0, 0);
            result.Apply();
            RenderTexture.active = currentRT;
            return result;
        }
    }
}