UnityEditor.SpriteEditorWindow.CreateTemporaryDuplicate C# (CSharp) Method

        private Texture2D CreateTemporaryDuplicate(Texture2D original, int width, int height)
        {
            if (!ShaderUtil.hardwareSupportsRectRenderTexture || (original == null))
            {
                return null;
            }
            EditorUtility.SetTemporarilyAllowIndieRenderTexture(true);
            RenderTexture active = RenderTexture.active;
            bool flag = !TextureUtil.GetLinearSampled(original);
            RenderTexture dest = RenderTexture.GetTemporary(width, height, 0, RenderTextureFormat.Default, !flag ? RenderTextureReadWrite.Linear : RenderTextureReadWrite.sRGB);
            GL.sRGBWrite = flag && (QualitySettings.activeColorSpace == ColorSpace.Linear);
            Graphics.Blit(original, dest);
            GL.sRGBWrite = false;
            RenderTexture.active = dest;
            bool flag2 = (width >= SystemInfo.maxTextureSize) || (height >= SystemInfo.maxTextureSize);
            Texture2D textured = new Texture2D(width, height, TextureFormat.ARGB32, (original.mipmapCount > 1) || flag2);
            textured.ReadPixels(new Rect(0f, 0f, (float) width, (float) height), 0, 0);
            textured.Apply();
            RenderTexture.ReleaseTemporary(dest);
            EditorGUIUtility.SetRenderTextureNoViewport(active);
            EditorUtility.SetTemporarilyAllowIndieRenderTexture(false);
            textured.alphaIsTransparency = original.alphaIsTransparency;
            return textured;
        }