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97 lines
3 KiB
C
97 lines
3 KiB
C
/***
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This file is part of PulseAudio.
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Copyright 2004-2006 Lennart Poettering
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Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2.1 of the License,
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or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PulseAudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#include <inttypes.h>
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/* First, define HAVE_VECTOR if we have the gcc vector extensions at all */
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#if defined(__SSE2__) || defined(__ALTIVEC__)
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#define HAVE_VECTOR
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/* This is supposed to be portable to different SIMD instruction
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* sets. We define vector types for different base types: uint8_t,
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* int16_t, int32_t, float. The vector type is a union. The fields .i,
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* .u, .f are arrays for accessing the separate elements of a
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* vector. .v is a gcc vector type of the right format. .m is the
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* vector in the type the SIMD extenstion specific intrinsics API
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* expects. PA_xxx_VECTOR_SIZE is the size of the
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* entries. PA_xxxx_VECTOR_MAKE constructs a gcc vector variable with
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* the same value in all elements. */
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#ifdef __SSE2__
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#include <xmmintrin.h>
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#include <emmintrin.h>
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#define PA_UINT8_VECTOR_SIZE 16
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#define PA_INT16_VECTOR_SIZE 8
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#define PA_INT32_VECTOR_SIZE 4
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#define PA_FLOAT_VECTOR_SIZE 4
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#define PA_UINT8_VECTOR_MAKE(x) (pa_v16qi) { x, x, x, x, x, x, x, x, x, x, x, x, x, x, x, x }
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#define PA_INT16_VECTOR_MAKE(x) (pa_v8hi) { x, x, x, x, x, x, x, x }
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#define PA_INT32_VECTOR_MAKE(x) (pa_v4si) { x, x, x, x }
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#define PA_FLOAT_VECTOR_MAKE(x) (pa_v4fi) { x, x, x, x }
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#endif
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/* uint8_t vector */
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typedef uint8_t pa_v16qi __attribute__ ((vector_size (PA_UINT8_VECTOR_SIZE * sizeof(uint8_t))));
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typedef union pa_uint8_vector {
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uint8_t u[PA_UINT8_VECTOR_SIZE];
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pa_v16qi v;
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#ifdef __SSE2__
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__m128i m;
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#endif
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} pa_uint8_vector_t;
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/* int16_t vector*/
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typedef int16_t pa_v8hi __attribute__ ((vector_size (PA_INT16_VECTOR_SIZE * sizeof(int16_t))));
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typedef union pa_int16_vector {
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int16_t i[PA_INT16_VECTOR_SIZE];
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pa_v8hi v;
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#ifdef __SSE2__
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__m128i m;
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#endif
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} pa_int16_vector_t;
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/* int32_t vector */
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typedef int32_t pa_v4si __attribute__ ((vector_size (PA_INT32_VECTOR_SIZE * sizeof(int32_t))));
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typedef union pa_int32_vector {
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int32_t i[PA_INT32_VECTOR_SIZE];
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pa_v4si v;
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#ifdef __SSE2__
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__m128i m;
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#endif
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} pa_int32_vector_t;
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/* float vector */
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typedef float pa_v4sf __attribute__ ((vector_size (PA_FLOAT_VECTOR_SIZE * sizeof(float))));
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typedef union pa_float_vector {
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float f[PA_FLOAT_VECTOR_SIZE];
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pa_v4sf v;
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#ifdef __SSE2__
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__m128 m;
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#endif
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} pa_float_vector_t;
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#endif
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