/*

  * LIBOIL - Library of Optimized Inner Loops

  * Copyright (c) 2004 David A. Schleef <ds@schleef.org>

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions

  * are met:

  * 1. Redistributions of source code must retain the above copyright

  *    notice, this list of conditions and the following disclaimer.

  * 2. Redistributions in binary form must reproduce the above copyright

  *    notice, this list of conditions and the following disclaimer in the

  *    documentation and/or other materials provided with the distribution.

  * 

  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,

  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  */

 //Portions Copyright (c)  2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

 #ifdef HAVE_CONFIG_H

 #include "config.h"

 #endif

 #include <string.h>

 #include <liboil/liboilfunction.h>

 OIL_DECLARE_CLASS (copy_u8);

 static void

 copy_u8_libc (uint8_t *dest, const uint8_t *src, int n)

 {

   memcpy (dest, src, n);

 }

 OIL_DEFINE_IMPL (copy_u8_libc, copy_u8);

 static void

 copy_u8_ptr (uint8_t *dest, const uint8_t *src, int n)

 {

   while(n--) {

     *dest++ = *src++;

   }

 }

 OIL_DEFINE_IMPL (copy_u8_ptr, copy_u8);

 #ifdef HAVE_UNALIGNED_ACCESS

 static void

 copy_u8_ints (uint8_t *dest, const uint8_t *src, int n)

 {

   int i;

   for(i=0;i<(n&3);i++){

     *dest++ = *src++;

   }

   n >>= 2;

   for(i=0;i<n;i++){

     *(uint32_t *)dest = *(uint32_t *)src;

     dest += 4;

     src += 4;

   }

 }

 OIL_DEFINE_IMPL (copy_u8_ints, copy_u8);

 #endif

 #ifdef HAVE_UNALIGNED_ACCESS

 /* Submitted by Adam Moss */

 static void

 copy_u8_llints (uint8_t *dest, const uint8_t *src, int n)

 {

   int i;

   for(i=0;i<(n&7);i++){

     *dest++ = *src++;

   }

   n >>= 3;

   for(i=0;i<n;i++){

     *(uint64_t *)dest = *(uint64_t *)src;

     dest += 8;

     src += 8;

   }

 }

 OIL_DEFINE_IMPL (copy_u8_llints, copy_u8);

 #endif

 #ifdef HAVE_UNALIGNED_ACCESS

 /* Submitted by Adam Moss */

 static void

 copy_u8_llints_duff (uint8_t *dest, const uint8_t *src, int n)

 {

   switch(n&7) {

   case 7: *dest++ = *src++;

   case 6: *dest++ = *src++;

   case 5: *dest++ = *src++;

   case 4: *dest++ = *src++;

   case 3: *dest++ = *src++;

   case 2: *dest++ = *src++;

   case 1: *dest++ = *src++;

   default: ;

   }

   n >>= 3;

   while (n) {

     switch (n & 15) {

     default:

     case 0: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 15: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 14: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 13: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 12: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 11: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 10: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 9: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 8: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 7: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 6: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 5: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 4: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 3: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 2: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     case 1: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8;

     }

     n = (n - 1) & ~(int)15;

   }

 }

 OIL_DEFINE_IMPL (copy_u8_llints_duff, copy_u8);

 #endif

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_copy_u8_libc() {

 		return &_oil_function_impl_copy_u8_libc;

 }

 #endif

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_copy_u8_ptr() {

 		return &_oil_function_impl_copy_u8_ptr;

 }

 #endif

 #ifdef HAVE_UNALIGNED_ACCESS

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_copy_u8_ints() {

 		return &_oil_function_impl_copy_u8_ints;

 }

 #endif

 #endif

 #ifdef HAVE_UNALIGNED_ACCESS

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_copy_u8_llints() {

 		return &_oil_function_impl_copy_u8_llints;

 }

 #endif

 #endif

 #ifdef HAVE_UNALIGNED_ACCESS

 #ifdef	__SYMBIAN32__

 OilFunctionImpl* __oil_function_impl_copy_u8_llints_duff() {

 		return &_oil_function_impl_copy_u8_llints_duff;

 }

 #endif

 #endif