Hi,
while porting the ogle dvd player I faced the
problem of needing fast byte swap routines for
16, 32 and 64 bit words.
After grepping through the -CURRENT sources
I came up with at least three different
assembler implementations.
- one in NTOHS, NTOHL
- one undocumented swap16/swap32 used by USB driver
- perhaps swab() from the string lib (might need src!=dest)
I finally gave up and used the same solution that
the xine player porter took - taking code from
the ac3dec library.
What do you guys advice?
Oh yes, and I used fpos_t in all parts of libdvdread,
that were used for seeking.
Is this ugly, should better use the uint64 type
burried deep with the machine dependent headers?
What is good coding practice here?
Regards,
Marc
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