diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/.gitignore | 1 | ||||
| -rw-r--r-- | src/Makefile.am | 9 | ||||
| -rw-r--r-- | src/pulsecore/vector.h | 97 | ||||
| -rw-r--r-- | src/tests/vector-test.c | 83 |
4 files changed, 189 insertions, 1 deletions
diff --git a/src/.gitignore b/src/.gitignore index 72c38cc6..66738d0a 100644 --- a/src/.gitignore +++ b/src/.gitignore @@ -58,3 +58,4 @@ thread-test utf8-test voltest start-pulseaudio-x11 +vector-test diff --git a/src/Makefile.am b/src/Makefile.am index 8d1271c3..b59e50ae 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -233,6 +233,7 @@ TESTS = \ strlist-test \ close-test \ voltest \ + vector-test \ memblockq-test \ channelmap-test \ thread-mainloop-test \ @@ -263,6 +264,7 @@ TESTS_BINARIES = \ strlist-test \ close-test \ voltest \ + vector-test \ memblockq-test \ sync-playback \ interpol-test \ @@ -408,6 +410,11 @@ voltest_CFLAGS = $(AM_CFLAGS) voltest_LDADD = $(AM_LDADD) libpulse.la voltest_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS) +vector_test_SOURCES = tests/vector-test.c +vector_test_CFLAGS = $(AM_CFLAGS) +vector_test_LDADD = $(AM_LDADD) libpulsecore-@PA_MAJORMINORMICRO@.la libpulsecommon-@PA_MAJORMINORMICRO@.la +vector_test_LDFLAGS = $(AM_LDFLAGS) $(BINLDFLAGS) + channelmap_test_SOURCES = tests/channelmap-test.c channelmap_test_CFLAGS = $(AM_CFLAGS) channelmap_test_LDADD = $(AM_LDADD) libpulse.la @@ -527,7 +534,7 @@ libpulsecommon_@PA_MAJORMINORMICRO@_la_SOURCES = \ pulsecore/llist.h \ pulsecore/lock-autospawn.c pulsecore/lock-autospawn.h \ pulsecore/log.c pulsecore/log.h \ - pulsecore/macro.h \ + pulsecore/macro.h pulsecore/vector.h \ pulsecore/mcalign.c pulsecore/mcalign.h \ pulsecore/memblock.c pulsecore/memblock.h \ pulsecore/memblockq.c pulsecore/memblockq.h \ diff --git a/src/pulsecore/vector.h b/src/pulsecore/vector.h new file mode 100644 index 00000000..076bd6c0 --- /dev/null +++ b/src/pulsecore/vector.h @@ -0,0 +1,97 @@ +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +/* First, define HAVE_VECTOR if we have the gcc vector extensions at all */ +#if defined(__SSE2__) || defined(__ALTIVEC__) +#define HAVE_VECTOR + + +/* This is supposed to be portable to different SIMD instruction + * sets. We define vector types for different base types: uint8_t, + * int16_t, int32_t, float. The vector type is a union. The fields .i, + * .u, .f are arrays for accessing the separate elements of a + * vector. .v is a gcc vector type of the right format. .m is the + * vector in the type the SIMD extenstion specific intrinsics API + * expects. PA_xxx_VECTOR_SIZE is the size of the + * entries. PA_xxxx_VECTOR_MAKE constructs a gcc vector variable with + * the same value in all elements. */ + +#ifdef __SSE2__ + +#include <xmmintrin.h> +#include <emmintrin.h> + +#define PA_UINT8_VECTOR_SIZE 16 +#define PA_INT16_VECTOR_SIZE 8 +#define PA_INT32_VECTOR_SIZE 4 +#define PA_FLOAT_VECTOR_SIZE 4 + +#define PA_UINT8_VECTOR_MAKE(x) (pa_v16qi) { x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x } +#define PA_INT16_VECTOR_MAKE(x) (pa_v8hi) { x, x, x, x, x, x, x, x } +#define PA_INT32_VECTOR_MAKE(x) (pa_v4si) { x, x, x, x } +#define PA_FLOAT_VECTOR_MAKE(x) (pa_v4fi) { x, x, x, x } + +#endif + +/* uint8_t vector */ +typedef uint8_t pa_v16qi __attribute__ ((vector_size (PA_UINT8_VECTOR_SIZE * sizeof(uint8_t)))); +typedef union pa_uint8_vector { + uint8_t u[PA_UINT8_VECTOR_SIZE]; + pa_v16qi v; +#ifdef __SSE2__ + __m128i m; +#endif +} pa_uint8_vector_t; + +/* int16_t vector*/ +typedef int16_t pa_v8hi __attribute__ ((vector_size (PA_INT16_VECTOR_SIZE * sizeof(int16_t)))); +typedef union pa_int16_vector { + int16_t i[PA_INT16_VECTOR_SIZE]; + pa_v8hi v; +#ifdef __SSE2__ + __m128i m; +#endif +} pa_int16_vector_t; + +/* int32_t vector */ +typedef int32_t pa_v4si __attribute__ ((vector_size (PA_INT32_VECTOR_SIZE * sizeof(int32_t)))); +typedef union pa_int32_vector { + int32_t i[PA_INT32_VECTOR_SIZE]; + pa_v4si v; +#ifdef __SSE2__ + __m128i m; +#endif +} pa_int32_vector_t; + +/* float vector */ +typedef float pa_v4sf __attribute__ ((vector_size (PA_FLOAT_VECTOR_SIZE * sizeof(float)))); +typedef union pa_float_vector { + float f[PA_FLOAT_VECTOR_SIZE]; + pa_v4sf v; +#ifdef __SSE2__ + __m128 m; +#endif +} pa_float_vector_t; + +#endif diff --git a/src/tests/vector-test.c b/src/tests/vector-test.c new file mode 100644 index 00000000..f7344172 --- /dev/null +++ b/src/tests/vector-test.c @@ -0,0 +1,83 @@ +/*** + This file is part of PulseAudio. + + Copyright 2009 Lennart Poettering + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <pulsecore/vector.h> +#include <pulsecore/log.h> + +int main(int argc, char *argv[]) { + +#ifdef __SSE2__ + pa_int16_vector_t input, zero; + pa_int32_vector_t unpacked1, unpacked2; + pa_int32_vector_t volume1, volume2, volume1_hi, volume1_lo, volume2_hi, volume2_lo, reduce, mask; + pa_int16_vector_t output; + + unsigned u; + + zero.v = PA_INT16_VECTOR_MAKE(0); + reduce.v = PA_INT32_VECTOR_MAKE(0x10000); + volume1.v = volume2.v = PA_INT32_VECTOR_MAKE(0x10000*2+7); + mask.v = PA_INT32_VECTOR_MAKE(0xFFFF); + + volume1_lo.m = _mm_and_si128(volume1.m, mask.m); + volume2_lo.m = _mm_and_si128(volume2.m, mask.m); + volume1_hi.m = _mm_srli_epi32(volume1.m, 16); + volume2_hi.m = _mm_srli_epi32(volume2.m, 16); + + input.v = PA_INT16_VECTOR_MAKE(32000); + + for (u = 0; u < PA_INT16_VECTOR_SIZE; u++) + pa_log("input=%i\n", input.i[u]); + + unpacked1.m = _mm_unpackhi_epi16(zero.m, input.m); + unpacked2.m = _mm_unpacklo_epi16(zero.m, input.m); + + for (u = 0; u < PA_INT32_VECTOR_SIZE; u++) + pa_log("unpacked1=%i\n", unpacked1.i[u]); + + unpacked1.v /= reduce.v; + unpacked2.v /= reduce.v; + + for (u = 0; u < PA_INT32_VECTOR_SIZE; u++) + pa_log("unpacked1=%i\n", unpacked1.i[u]); + + for (u = 0; u < PA_INT32_VECTOR_SIZE; u++) + pa_log("volume1=%i\n", volume1.i[u]); + + unpacked1.v = (unpacked1.v * volume1_lo.v) / reduce.v + unpacked1.v * volume1_hi.v; + unpacked2.v = (unpacked2.v * volume2_lo.v) / reduce.v + unpacked2.v * volume2_hi.v; + + for (u = 0; u < PA_INT32_VECTOR_SIZE; u++) + pa_log("unpacked1=%i\n", unpacked1.i[u]); + + output.m = _mm_packs_epi32(unpacked1.m, unpacked2.m); + + for (u = 0; u < PA_INT16_VECTOR_SIZE; u++) + pa_log("output=%i\n", output.i[u]); + +#endif + + return 0; +} |