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audio-resampler: Fix compilation of intrinsics

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Only compile intrinsics when we are building for the selected
architecture.
Add sse4.1 optimized int32 resampler code.
This commit is contained in:
Wim Taymans 2016-01-15 12:45:47 +01:00
parent 98bd349b88
commit e74c207433
2 changed files with 80 additions and 24 deletions
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2
configure.ac
View file

@ -174,7 +174,7 @@ AC_HEADER_STDC
dnl check for GCC specific SSE headers
dnl these are used by the speex resampler code
AC_CHECK_HEADERS([xmmintrin.h emmintrin.h])
AC_CHECK_HEADERS([xmmintrin.h emmintrin.h smmintrin.h])
dnl used in gst/tcp
AC_CHECK_HEADERS([sys/socket.h],

102
gst-libs/gst/audio/audio-resampler-x86.h
View file

@ -17,7 +17,32 @@
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_EMMINTRIN_H
#if defined (HAVE_XMMINTRIN_H) && defined(__SSE__)
#include <xmmintrin.h>
static inline void
inner_product_gfloat_1_sse (gfloat * o, const gfloat * a, const gfloat * b, gint len)
{
gint i = 0;
__m128 sum = _mm_setzero_ps ();
for (; i < len; i += 8) {
sum =
_mm_add_ps (sum, _mm_mul_ps (_mm_loadu_ps (a + i + 0),
_mm_load_ps (b + i + 0)));
sum =
_mm_add_ps (sum, _mm_mul_ps (_mm_loadu_ps (a + i + 4),
_mm_load_ps (b + i + 4)));
}
sum = _mm_add_ps (sum, _mm_movehl_ps (sum, sum));
sum = _mm_add_ss (sum, _mm_shuffle_ps (sum, sum, 0x55));
_mm_store_ss (o, sum);
}
MAKE_RESAMPLE_FUNC (gfloat, 1, sse);
#endif
#if defined (HAVE_EMMINTRIN_H) && defined(__SSE2__)
#include <emmintrin.h>
static inline void
@ -47,25 +72,6 @@ inner_product_gint16_1_sse2 (gint16 * o, const gint16 * a, const gint16 * b, gin
*o = _mm_extract_epi16 (sum, 0);
}
static inline void
inner_product_gfloat_1_sse (gfloat * o, const gfloat * a, const gfloat * b, gint len)
{
gint i = 0;
__m128 sum = _mm_setzero_ps ();
for (; i < len; i += 8) {
sum =
_mm_add_ps (sum, _mm_mul_ps (_mm_loadu_ps (a + i + 0),
_mm_load_ps (b + i + 0)));
sum =
_mm_add_ps (sum, _mm_mul_ps (_mm_loadu_ps (a + i + 4),
_mm_load_ps (b + i + 4)));
}
sum = _mm_add_ps (sum, _mm_movehl_ps (sum, sum));
sum = _mm_add_ss (sum, _mm_shuffle_ps (sum, sum, 0x55));
_mm_store_ss (o, sum);
}
static inline void
inner_product_gdouble_1_sse2 (gdouble * o, const gdouble * a, const gdouble * b,
gint len)
@ -150,26 +156,76 @@ inner_product_gdouble_2_sse2 (gdouble * o, const gdouble * a, const gdouble * b,
}
MAKE_RESAMPLE_FUNC (gint16, 1, sse2);
MAKE_RESAMPLE_FUNC (gfloat, 1, sse);
MAKE_RESAMPLE_FUNC (gdouble, 1, sse2);
MAKE_RESAMPLE_FUNC (gint16, 2, sse2);
MAKE_RESAMPLE_FUNC (gdouble, 2, sse2);
#endif
#if defined (HAVE_SMMINTRIN_H) && defined(__SSE4_1__)
#include <smmintrin.h>
static inline void
inner_product_gint32_1_sse41 (gint32 * o, const gint32 * a, const gint32 * b,
gint len)
{
gint i = 0;
__m128i sum, ta, tb;
gint64 res;
sum = _mm_setzero_si128 ();
for (; i < len; i += 8) {
ta = _mm_loadu_si128 ((__m128i *) (a + i));
tb = _mm_load_si128 ((__m128i *) (b + i));
sum =
_mm_add_epi64 (sum, _mm_mul_epi32 (_mm_unpacklo_epi32 (ta, ta),
_mm_unpacklo_epi32 (tb, tb)));
sum =
_mm_add_epi64 (sum, _mm_mul_epi32 (_mm_unpackhi_epi32 (ta, ta),
_mm_unpackhi_epi32 (tb, tb)));
ta = _mm_loadu_si128 ((__m128i *) (a + i + 4));
tb = _mm_load_si128 ((__m128i *) (b + i + 4));
sum =
_mm_add_epi64 (sum, _mm_mul_epi32 (_mm_unpacklo_epi32 (ta, ta),
_mm_unpacklo_epi32 (tb, tb)));
sum =
_mm_add_epi64 (sum, _mm_mul_epi32 (_mm_unpackhi_epi32 (ta, ta),
_mm_unpackhi_epi32 (tb, tb)));
}
sum = _mm_add_epi64 (sum, _mm_unpackhi_epi64 (sum, sum));
res = _mm_cvtsi128_si64 (sum);
res = (res + (1 << (PRECISION_S32 - 1))) >> PRECISION_S32;
*o = CLAMP (res, -(1L << 31), (1L << 31) - 1);
}
MAKE_RESAMPLE_FUNC (gint32, 1, sse41);
#endif
static void
audio_resampler_check_x86 (const gchar *option)
{
#ifdef HAVE_EMMINTRIN_H
if (!strcmp (option, "sse")) {
#if defined (HAVE_XMMINTRIN_H) && defined(__SSE__)
GST_DEBUG ("enable SSE optimisations");
resample_gfloat_1 = resample_gfloat_1_sse;
#endif
} else if (!strcmp (option, "sse2")) {
#if defined (HAVE_EMMINTRIN_H) && defined(__SSE2__)
GST_DEBUG ("enable SSE2 optimisations");
resample_gint16_1 = resample_gint16_1_sse2;
resample_gfloat_1 = resample_gfloat_1_sse;
resample_gdouble_1 = resample_gdouble_1_sse2;
resample_gint16_2 = resample_gint16_2_sse2;
resample_gdouble_2 = resample_gdouble_2_sse2;
}
#endif
} else if (!strcmp (option, "sse41")) {
#if defined (HAVE_SMMINTRIN_H) && defined(__SSE4_1__)
GST_DEBUG ("enable SSE41 optimisations");
resample_gint32_1 = resample_gint32_1_sse41;
#endif
}
}