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| author | Josh Coalson <jcoalson@users.sourceforce.net> | 2007-02-04 02:57:48 +0000 |
|---|---|---|
| committer | Josh Coalson <jcoalson@users.sourceforce.net> | 2007-02-04 02:57:48 +0000 |
| commit | c85056b3d5bcde151fbb92f22dcfb8d0638389aa (patch) | |
| tree | ec8b7717fe908fd053a16141e00c4e59bb96cc28 /src/libFLAC/bitwriter.c | |
| parent | 8640da31f7bbead90522ef256692d3c304402c9b (diff) | |
| download | flac-c85056b3d5bcde151fbb92f22dcfb8d0638389aa.tar.gz | |
use inline byte-swapping function for MSVC
Diffstat (limited to 'src/libFLAC/bitwriter.c')
| -rw-r--r-- | src/libFLAC/bitwriter.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/libFLAC/bitwriter.c b/src/libFLAC/bitwriter.c index e9962e97..ba2a9d79 100644 --- a/src/libFLAC/bitwriter.c +++ b/src/libFLAC/bitwriter.c @@ -58,8 +58,12 @@ typedef FLAC__uint32 bwword; #if WORDS_BIGENDIAN #define SWAP_BE_WORD_TO_HOST(x) (x) #else +#ifdef _MSC_VER +#define SWAP_BE_WORD_TO_HOST(x) local_swap32_(x) +#else #define SWAP_BE_WORD_TO_HOST(x) ntohl(x) #endif +#endif /* * The default capacity here doesn't matter too much. The buffer always grows @@ -98,6 +102,15 @@ struct FLAC__BitWriter { unsigned bits; /* # of used bits in accum */ }; +#ifdef _MSC_VER +/* OPT: an MSVC built-in would be better */ +static _inline FLAC__uint32 local_swap32_(FLAC__uint32 x) +{ + x = ((x<<8)&0xFF00FF00) | ((x>>8)&0x00FF00FF); + return (x>>16) | (x<<16); +} +#endif + /* * WATCHOUT: The current implementation only grows the buffer. */ static FLAC__bool bitwriter_grow_(FLAC__BitWriter *bw, unsigned bits_to_add) { |