C# (CSharp) FastBitmap.CopyRow示例

示例#1

        void EnsurePow2(ref Bitmap bmp)
        {
            int width  = Utils.NextPowerOf2(bmp.Width);
            int height = Utils.NextPowerOf2(bmp.Height);

            if (width == bmp.Width && height == bmp.Height)
            {
                return;
            }

            Bitmap scaled = Platform.CreateBmp(width, height);

            using (FastBitmap src = new FastBitmap(bmp, true, true))
                using (FastBitmap dst = new FastBitmap(scaled, true, false))
                {
                    for (int y = 0; y < src.Height; y++)
                    {
                        FastBitmap.CopyRow(y, y, src, dst, src.Width);
                    }
                }

            uScale = (float)bmp.Width / width;
            vScale = (float)bmp.Height / height;
            bmp.Dispose();
            bmp = scaled;
        }