Example #1
0
      protected void encodeRowFromByte(byte[] row) {
            if (row.Length == ImgInfo.SamplesPerRowPacked && !needsPack) {
                // some duplication of code - because this case is typical and it works faster this way
                int j = 1;
                if (ImgInfo.BitDepth <= 8)
                  foreach (byte x in row) // optimized
                    rowb[j++] = x;
                else // 16 bitspc
                  foreach (byte x in row) { // optimized
                    rowb[j] =  x;
                    j       += 2;
                  }
            } else {
                // perhaps we need to pack?
                if (row.Length >= ImgInfo.SamplesPerRow && needsPack)
                    ImageLine.packInplaceByte(ImgInfo, row, row, false); // row is packed in place!
                if (ImgInfo.BitDepth <= 8)
                  for (int i = 0, j = 1; i < ImgInfo.SamplesPerRowPacked; i++)
                    rowb[j++] = row[i];
                else // 16 bitspc
                  for (int i = 0, j = 1; i < ImgInfo.SamplesPerRowPacked; i++) {
                    rowb[j++] = row[i];
                    rowb[j++] = 0;
                  }

            }
        }
Example #2
0
        public static byte[] Pack(ImageInfo imgInfo, byte[] src, byte[] dst, bool scale)
        {
            int len0 = imgInfo.SamplesPerRowPacked;

            if (dst == null || dst.Length < len0)
            {
                dst = new byte[len0];
            }
            if (imgInfo.Packed)
            {
                ImageLine.packInplaceByte(imgInfo, src, dst, scale);
            }
            else
            {
                Array.Copy(src, 0, dst, 0, len0);
            }
            return(dst);
        }
Example #3
0
        public void encodeRowFromByte(byte[] row)
        {
            if (row.Length == ImgInfo.SamplesPerRowPacked && !needsPack)
            {
                int num = 1;
                if (ImgInfo.BitDepth <= 8)
                {
                    foreach (byte b in row)
                    {
                        rowb[num++] = b;
                    }
                    return;
                }
                foreach (byte b2 in row)
                {
                    rowb[num] = b2;
                    num      += 2;
                }
                return;
            }
            if (row.Length >= ImgInfo.SamplesPerRow && needsPack)
            {
                ImageLine.packInplaceByte(ImgInfo, row, row, scaled: false);
            }
            if (ImgInfo.BitDepth <= 8)
            {
                int j    = 0;
                int num2 = 1;
                for (; j < ImgInfo.SamplesPerRowPacked; j++)
                {
                    rowb[num2++] = row[j];
                }
                return;
            }
            int k    = 0;
            int num3 = 1;

            for (; k < ImgInfo.SamplesPerRowPacked; k++)
            {
                rowb[num3++] = row[k];
                rowb[num3++] = 0;
            }
        }