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Move check into if statement

pull/298/head
James Jackson-South 9 years ago
parent
1cd137d8f9
commit
0ff77ec6d6
1 changed files with 25 additions and 23 deletions
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  1. 48
      src/ImageSharp/Formats/Jpeg/Port/Components/ScanDecoder.cs

48
src/ImageSharp/Formats/Jpeg/Port/Components/ScanDecoder.cs
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@ -622,29 +622,31 @@ namespace ImageSharp.Formats.Jpeg.Port.Components
// TODO: Adding this code introduces error into the decoder.
// It doesn't appear to speed anything up either.
// if (this.bitsUnRead < 8)
// {
// if (this.bitsCount <= 0)
// {
// code = (short)this.ReadBit(stream);
// this.bitsUnRead += 8;
// }
// if (this.endOfStreamReached || this.unexpectedMarkerReached)
// {
// return -1;
// }
// this.accumulator = (this.accumulator << 8) | this.bitsData;
// int lutIndex = (this.accumulator >> (this.bitsUnRead - 8)) & 0xFF;
// int v = tree.Lookahead[lutIndex];
// if (v != 0)
// {
// int nb = (v & 0xFF) - 1;
// this.bitsCount -= nb - 1;
// this.bitsUnRead -= nb;
// v = v >> 8;
// return (short)v;
// }
// }
// if (this.bitsUnRead < 8)
// {
// if (this.bitsCount <= 0)
// {
// code = (short)this.ReadBit(stream);
// if (this.endOfStreamReached || this.unexpectedMarkerReached)
// {
// return -1;
// }
//
// this.bitsUnRead += 8;
// }
//
// this.accumulator = (this.accumulator << 8) | this.bitsData;
// int lutIndex = (this.accumulator >> (8 - this.bitsUnRead)) & 0xFF;
// int v = tree.Lookahead[lutIndex];
// if (v != 0)
// {
// int nb = (v & 0xFF) - 1;
// this.bitsCount -= nb - 1;
// this.bitsUnRead -= nb;
// v = v >> 8;
// return (short)v;
// }
// }
if (code == -1)
{
code = (short)this.ReadBit(stream);

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