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