os/ossrv/genericopenlibs/liboil/src/copy_sse.c
author sl
Tue, 10 Jun 2014 14:32:02 +0200
changeset 1 260cb5ec6c19
permissions -rw-r--r--
Update contrib.
     1 /*
     2  * Copyright (c) 2005
     3  *	Eric Anholt.  All rights reserved.
     4  *
     5  * Redistribution and use in source and binary forms, with or without
     6  * modification, are permitted provided that the following conditions
     7  * are met:
     8  * 1. Redistributions of source code must retain the above copyright
     9  *    notice, this list of conditions and the following disclaimer.
    10  * 2. Redistributions in binary form must reproduce the above copyright
    11  *    notice, this list of conditions and the following disclaimer in the
    12  *    documentation and/or other materials provided with the distribution.
    13  *
    14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
    15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE
    18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    24  * SUCH DAMAGE.
    25  */
    26 //Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 
    27 
    28 #ifdef HAVE_CONFIG_H
    29 #include "config.h"
    30 #endif
    31 #include <liboil/liboilclasses.h>
    32 #include <liboil/liboilfunction.h>
    33 #include <emmintrin.h>
    34 
    35 #define SSE_FUNCTION __attribute__((force_align_arg_pointer))
    36 
    37 SSE_FUNCTION static void
    38 copy_u8_sse (uint8_t *dest, const uint8_t *src, int n)
    39 {
    40   for (; ((long)dest & 15) && (n > 0); n--) {
    41     *dest++ = *src++;
    42   }
    43   for (; n >= 16; n -= 16) {
    44     _mm_store_si128((__m128i *)dest, _mm_loadu_si128((__m128i *)src));
    45     src += 16;
    46     dest += 16;
    47   }
    48   for (; n > 0; n--) {
    49     *dest++ = *src++;
    50   }
    51 }
    52 OIL_DEFINE_IMPL_FULL (copy_u8_sse, copy_u8, OIL_IMPL_FLAG_SSE2);
    53 
    54 SSE_FUNCTION static void
    55 copy_u8_sse_unroll2 (uint8_t *dest, const uint8_t *src, int n)
    56 {
    57   for (; ((long)dest & 15) && (n > 0); n--) {
    58     *dest++ = *src++;
    59   }
    60   for (; n >= 32; n -= 32) {
    61     _mm_store_si128((__m128i *)dest, _mm_loadu_si128((__m128i *)src));
    62     _mm_store_si128((__m128i *)(dest + 16), _mm_loadu_si128((__m128i *)(src + 16)));
    63     src += 32;
    64     dest += 32;
    65   }
    66   if (n >= 16) {
    67     _mm_store_si128((__m128i *)dest, _mm_loadu_si128((__m128i *)src));
    68     src += 16;
    69     dest += 16;
    70     n -= 16;
    71   }
    72   for (; n > 0; n--) {
    73     *dest++ = *src++;
    74   }
    75 }
    76 OIL_DEFINE_IMPL_FULL (copy_u8_sse_unroll2, copy_u8, OIL_IMPL_FLAG_SSE2);
    77 
    78 
    79 #ifdef	__SYMBIAN32__
    80  
    81 OilFunctionImpl* __oil_function_impl_copy_u8_sse, copy_u8() {
    82 		return &_oil_function_impl_copy_u8_sse, copy_u8;
    83 }
    84 #endif
    85 
    86 #ifdef	__SYMBIAN32__
    87  
    88 OilFunctionImpl* __oil_function_impl_copy_u8_sse_unroll2, copy_u8() {
    89 		return &_oil_function_impl_copy_u8_sse_unroll2, copy_u8;
    90 }
    91 #endif
    92