From 4aca87515a5083ae0e31ce3177189fd43b6d05ac Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Sat, 3 Jan 2015 13:58:15 +0100 Subject: patch to Vanilla Tomato 1.28 --- .../C/7zip/Compress/RangeCoder/RangeCoderOpt.h | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h (limited to 'release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h') diff --git a/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h new file mode 100644 index 00000000..829fc83d --- /dev/null +++ b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/RangeCoder/RangeCoderOpt.h @@ -0,0 +1,31 @@ +// Compress/RangeCoder/RangeCoderOpt.h + +#ifndef __COMPRESS_RANGECODER_OPT_H +#define __COMPRESS_RANGECODER_OPT_H + +#define RC_INIT_VAR \ + UInt32 range = rangeDecoder->Range; \ + UInt32 code = rangeDecoder->Code; + +#define RC_FLUSH_VAR \ + rangeDecoder->Range = range; \ + rangeDecoder->Code = code; + +#define RC_NORMALIZE \ + if (range < NCompress::NRangeCoder::kTopValue) \ + { code = (code << 8) | rangeDecoder->Stream.ReadByte(); range <<= 8; } + +#define RC_GETBIT2(numMoveBits, prob, mi, A0, A1) \ + { UInt32 bound = (range >> NCompress::NRangeCoder::kNumBitModelTotalBits) * prob; \ + if (code < bound) \ + { A0; range = bound; \ + prob += (NCompress::NRangeCoder::kBitModelTotal - prob) >> numMoveBits; \ + mi <<= 1; } \ + else \ + { A1; range -= bound; code -= bound; prob -= (prob) >> numMoveBits; \ + mi = (mi + mi) + 1; }} \ + RC_NORMALIZE + +#define RC_GETBIT(numMoveBits, prob, mi) RC_GETBIT2(numMoveBits, prob, mi, ; , ;) + +#endif -- cgit v1.2.3-54-g00ecf