diff options
| author | Tom Tsou <tom@tsou.cc> | 2015-03-25 12:55:11 -0700 |
|---|---|---|
| committer | Tom Tsou <tom.tsou@ettus.com> | 2015-08-21 19:31:24 -0700 |
| commit | f147b174475171cdf79ccba25a5e66fec282efcd (patch) | |
| tree | ea18554ae3a1cccfa6c8b0d5f4ee565db516e266 /Transceiver52M/x86/convert.c | |
| parent | d4d3daa12ea5491f4b6ba03805d4a2d3f068bc11 (diff) | |
sigproc: Make convolution and convert input buffers immutable
For good practice, use const specifier when applicable.
Signed-off-by: Tom Tsou <tom@tsou.cc>
Diffstat (limited to 'Transceiver52M/x86/convert.c')
| -rw-r--r-- | Transceiver52M/x86/convert.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/Transceiver52M/x86/convert.c b/Transceiver52M/x86/convert.c index 40831da..eafe7b2 100644 --- a/Transceiver52M/x86/convert.c +++ b/Transceiver52M/x86/convert.c @@ -34,7 +34,7 @@ /* 16*N 16-bit signed integer converted to single precision floats */ static void _sse_convert_si16_ps_16n(float *restrict out, - short *restrict in, + const short *restrict in, int len) { __m128i m0, m1, m2, m3, m4, m5; @@ -69,7 +69,7 @@ static void _sse_convert_si16_ps_16n(float *restrict out, /* 16*N 16-bit signed integer conversion with remainder */ static void _sse_convert_si16_ps(float *restrict out, - short *restrict in, + const short *restrict in, int len) { int start = len / 16 * 16; @@ -83,7 +83,7 @@ static void _sse_convert_si16_ps(float *restrict out, /* 8*N single precision floats scaled and converted to 16-bit signed integer */ static void _sse_convert_scale_ps_si16_8n(short *restrict out, - float *restrict in, + const float *restrict in, float scale, int len) { __m128 m0, m1, m2; @@ -111,7 +111,7 @@ static void _sse_convert_scale_ps_si16_8n(short *restrict out, /* 8*N single precision floats scaled and converted with remainder */ static void _sse_convert_scale_ps_si16(short *restrict out, - float *restrict in, + const float *restrict in, float scale, int len) { int start = len / 8 * 8; @@ -124,7 +124,7 @@ static void _sse_convert_scale_ps_si16(short *restrict out, /* 16*N single precision floats scaled and converted to 16-bit signed integer */ static void _sse_convert_scale_ps_si16_16n(short *restrict out, - float *restrict in, + const float *restrict in, float scale, int len) { __m128 m0, m1, m2, m3, m4; @@ -158,7 +158,8 @@ static void _sse_convert_scale_ps_si16_16n(short *restrict out, } } #else /* HAVE_SSE3 */ -static void convert_scale_ps_si16(short *out, float *in, float scale, int len) +static void convert_scale_ps_si16(short *out, const float *in, + float scale, int len) { for (int i = 0; i < len; i++) out[i] = in[i] * scale; @@ -166,14 +167,14 @@ static void convert_scale_ps_si16(short *out, float *in, float scale, int len) #endif #ifndef HAVE_SSE4_1 -static void convert_si16_ps(float *out, short *in, int len) +static void convert_si16_ps(float *out, const short *in, int len) { for (int i = 0; i < len; i++) out[i] = in[i]; } #endif -void convert_float_short(short *out, float *in, float scale, int len) +void convert_float_short(short *out, const float *in, float scale, int len) { #ifdef HAVE_SSE3 if (!(len % 16)) @@ -187,7 +188,7 @@ void convert_float_short(short *out, float *in, float scale, int len) #endif } -void convert_short_float(float *out, short *in, int len) +void convert_short_float(float *out, const short *in, int len) { #ifdef HAVE_SSE4_1 if (!(len % 16)) |