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| author | Max Kellermann <max@duempel.org> | 2011-10-10 07:58:27 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2011-10-10 10:24:05 +0200 |
| commit | e93dd374a46270d6cd873b7e2db557b346b1aac7 (patch) | |
| tree | 2fafe9bb35041475df39fe2b16e6d99dde908578 /src/pcm_byteswap.c | |
| parent | 0847ca4ec2e137d0eaa235d653217e8a913187f8 (diff) | |
| download | mpd-e93dd374a46270d6cd873b7e2db557b346b1aac7.tar.gz mpd-e93dd374a46270d6cd873b7e2db557b346b1aac7.tar.xz mpd-e93dd374a46270d6cd873b7e2db557b346b1aac7.zip | |
pcm_byteswap: use GLib byte swapping macros
GLib's macros are implemented with inline assembly, and probably a lot
faster than our naive bit shifting implementation.
Diffstat (limited to 'src/pcm_byteswap.c')
| -rw-r--r-- | src/pcm_byteswap.c | 17 |
1 files changed, 2 insertions, 15 deletions
diff --git a/src/pcm_byteswap.c b/src/pcm_byteswap.c index 63f116211..13ed85bfe 100644 --- a/src/pcm_byteswap.c +++ b/src/pcm_byteswap.c @@ -28,11 +28,6 @@ #undef G_LOG_DOMAIN #define G_LOG_DOMAIN "pcm" -static inline uint16_t swab16(uint16_t x) -{ - return (x << 8) | (x >> 8); -} - const int16_t *pcm_byteswap_16(struct pcm_buffer *buffer, const int16_t *src, size_t len) { @@ -42,19 +37,11 @@ const int16_t *pcm_byteswap_16(struct pcm_buffer *buffer, assert(buf != NULL); for (i = 0; i < len / 2; i++) - buf[i] = swab16(src[i]); + buf[i] = GUINT16_SWAP_LE_BE(src[i]); return buf; } -static inline uint32_t swab32(uint32_t x) -{ - return (x << 24) | - ((x & 0xff00) << 8) | - ((x & 0xff0000) >> 8) | - (x >> 24); -} - const int32_t *pcm_byteswap_32(struct pcm_buffer *buffer, const int32_t *src, size_t len) { @@ -64,7 +51,7 @@ const int32_t *pcm_byteswap_32(struct pcm_buffer *buffer, assert(buf != NULL); for (i = 0; i < len / 4; i++) - buf[i] = swab32(src[i]); + buf[i] = GUINT32_SWAP_LE_BE(src[i]); return buf; } |