diff options
| author | Wim Taymans <wtaymans@redhat.com> | 2015-11-03 11:57:32 +0100 |
|---|---|---|
| committer | Wim Taymans <wtaymans@redhat.com> | 2015-11-03 12:12:08 +0100 |
| commit | 914aa4aed14738616d2d0f61d857977f10a0cb02 (patch) | |
| tree | 3a1c960799cae8d9db51cce03cf0efb6938ff1a9 /gst-libs | |
| parent | 9e15c895644c0c15513fec0623416286700da184 (diff) | |
audiopack: improve pack functions
Avoid shifts by using convh functions.
Diffstat (limited to 'gst-libs')
| -rw-r--r-- | gst-libs/gst/audio/gstaudiopack.orc | 36 |
1 files changed, 8 insertions, 28 deletions
diff --git a/gst-libs/gst/audio/gstaudiopack.orc b/gst-libs/gst/audio/gstaudiopack.orc index 99458278f..89b262714 100644 --- a/gst-libs/gst/audio/gstaudiopack.orc +++ b/gst-libs/gst/audio/gstaudiopack.orc @@ -171,74 +171,54 @@ swapq d1, s1 .function audio_orc_pack_u8 .dest 1 d1 guint8 .source 4 s1 gint32 -.const 4 c2 24 .const 4 c1 0x80000000 .temp 4 t1 .temp 2 t2 xorl t1, s1, c1 -shrul t1, t1, c2 -convlw t2, t1 -convwb d1, t2 - +convhlw t2, t1 +convhwb d1, t2 .function audio_orc_pack_s8 .dest 1 d1 guint8 .source 4 s1 gint32 -.const 4 c1 24 -.temp 4 t1 .temp 2 t2 -shrsl t1, s1, c1 -convlw t2, t1 -convwb d1, t2 - +convhlw t2, s1 +convhwb d1, t2 .function audio_orc_pack_u16 .dest 2 d1 guint8 .source 4 s1 gint32 -.const 4 c2 16 .const 4 c1 0x80000000 .temp 4 t1 xorl t1, s1, c1 -shrul t1, t1, c2 -convlw d1, t1 - +convhlw d1, t1 .function audio_orc_pack_s16 .dest 2 d1 guint8 .source 4 s1 gint32 -.const 4 c1 16 -.temp 4 t1 - -shrsl t1, s1, c1 -convlw d1, t1 +convhlw d1, s1 .function audio_orc_pack_u16_swap .dest 2 d1 guint8 .source 4 s1 gint32 .const 4 c1 0x80000000 -.const 4 c2 16 .temp 4 t1 .temp 2 t2 xorl t1, s1, c1 -shrul t1, t1, c2 -convlw t2, t1 +convhlw t2, t1 swapw d1, t2 - .function audio_orc_pack_s16_swap .dest 2 d1 guint8 .source 4 s1 gint32 -.const 4 c1 16 -.temp 4 t1 .temp 2 t2 -shrsl t1, s1, c1 -convlw t2, t1 +convhlw t2, s1 swapw d1, t2 .function audio_orc_pack_u24_32 |