os/ossrv/genericopenlibs/liboil/src/mmx/copy_mmx.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 
    34 #ifdef HAVE_GCC_ASM 
    35 #include <mmintrin.h>  
    36 #endif
    37 
    38 static void
    39 copy_u8_mmx (uint8_t *dest, const uint8_t *src, int n)
    40 {
    41 #ifdef HAVE_GCC_ASM 
    42   for (; n >= 8; n -= 8) {
    43     *(__m64 *)dest = *(__m64 *)src;
    44     src += 8;
    45     dest += 8;
    46   }
    47   for (; n > 0; n--) {
    48     *dest++ = *src++;
    49   }
    50   _mm_empty();
    51 #endif  
    52 }
    53 OIL_DEFINE_IMPL_FULL (copy_u8_mmx, copy_u8, OIL_IMPL_FLAG_MMX);
    54 
    55 static void
    56 copy_u8_mmx_unroll4 (uint8_t *dest, const uint8_t *src, int n)
    57 {
    58 #ifdef HAVE_GCC_ASM 
    59   for (; n >= 32; n -= 32) {
    60     ((__m64 *)dest)[0] = ((__m64 *)src)[0];
    61     ((__m64 *)dest)[1] = ((__m64 *)src)[1];
    62     ((__m64 *)dest)[2] = ((__m64 *)src)[2];
    63     ((__m64 *)dest)[3] = ((__m64 *)src)[3];
    64     src += 32;
    65     dest += 32;
    66   }
    67   for (; n >= 8; n -= 8) {
    68     *(__m64 *)dest = *(__m64 *)src;
    69     src += 8;
    70     dest += 8;
    71   }
    72   for (; n > 0; n--) {
    73     *dest++ = *src++;
    74   }
    75   _mm_empty();
    76 #endif  
    77 }
    78 OIL_DEFINE_IMPL_FULL (copy_u8_mmx_unroll4, copy_u8, OIL_IMPL_FLAG_MMX);
    79 
    80 
    81 #ifdef	__SYMBIAN32__
    82  
    83 OilFunctionImpl* __oil_function_impl_copy_u8_mmx() {
    84 		return &_oil_function_impl_copy_u8_mmx;
    85 }
    86 #endif
    87 
    88 #ifdef	__SYMBIAN32__
    89  
    90 OilFunctionImpl* __oil_function_impl_copy_u8_mmx_unroll4() {
    91 		return &_oil_function_impl_copy_u8_mmx_unroll4;
    92 }
    93 #endif
    94