Commit Graph

5 Commits

Author SHA1 Message Date
Tom Tsou f147b17447 sigproc: Make convolution and convert input buffers immutable
For good practice, use const specifier when applicable.

Signed-off-by: Tom Tsou <tom@tsou.cc>
2015-08-21 19:31:24 -07:00
Thomas Tsou 187225cf33 Transceiver52M: Fix SSE convolution shuffle register
An errant shuffle register value used in complex-complex convolution
causes distorted correlation peak-to-average values for certain TSC
values. The error effect varies for different TSC sequences with the
most noticeable effect of degraded detection on TSC 1 and no effect on
TSC 7.

Signed-off-by: Thomas Tsou <tom@tsou.cc>
2014-05-08 13:57:36 -04:00
Thomas Tsou 7e4e536b1b Transceiver52M: Add ARM NEON support
Similar to the existing Intel SSE cases, add support for NEON vector
floating point SIMD processing. In this case, use ARM assembly
directly as the NEON intrinsics do not generate preferential code
output.

Currently support NEON vectorized convolution and floating point
integer conversions.

Signed-off-by: Thomas Tsou <tom@tsou.cc>
2013-11-15 23:32:35 -05:00
Thomas Tsou 69762fd7c6 Transceiver52M: Fix SSE preprocessor definition
Using non-SSE4.1 enabled architecture would cause undefined
reference to 'convert_si16_ps' call.

Signed-off-by: Thomas Tsou <tom@tsou.cc>
2013-11-07 22:57:21 -05:00
Thomas Tsou 17bbb9b755 Transceiver52M: Separate architecture specific files
Move x86 specific files into their own directory as this
area is about to get crowded with the addition of ARM
support.

Signed-off-by: Thomas Tsou <tom@tsou.cc>
2013-11-04 09:15:55 -08:00