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1 /* |
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2 * LIBOIL - Library of Optimized Inner Loops |
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3 * Copyright (c) 2004 David A. Schleef <ds@schleef.org> |
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4 * All rights reserved. |
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5 * |
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6 * Redistribution and use in source and binary forms, with or without |
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7 * modification, are permitted provided that the following conditions |
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8 * are met: |
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9 * 1. Redistributions of source code must retain the above copyright |
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10 * notice, this list of conditions and the following disclaimer. |
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11 * 2. Redistributions in binary form must reproduce the above copyright |
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12 * notice, this list of conditions and the following disclaimer in the |
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13 * documentation and/or other materials provided with the distribution. |
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14 * |
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15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, |
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19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
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21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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25 * POSSIBILITY OF SUCH DAMAGE. |
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26 */ |
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27 //Portions Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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28 |
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29 #ifdef HAVE_CONFIG_H |
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30 #include "config.h" |
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31 #endif |
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32 |
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33 #include <string.h> |
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34 |
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35 #include <liboil/liboilfunction.h> |
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36 |
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37 OIL_DECLARE_CLASS (copy_u8); |
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38 |
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39 static void |
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40 copy_u8_libc (uint8_t *dest, const uint8_t *src, int n) |
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41 { |
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42 memcpy (dest, src, n); |
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43 } |
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44 OIL_DEFINE_IMPL (copy_u8_libc, copy_u8); |
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45 |
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46 static void |
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47 copy_u8_ptr (uint8_t *dest, const uint8_t *src, int n) |
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48 { |
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49 while(n--) { |
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50 *dest++ = *src++; |
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51 } |
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52 } |
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53 OIL_DEFINE_IMPL (copy_u8_ptr, copy_u8); |
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54 |
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55 #ifdef HAVE_UNALIGNED_ACCESS |
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56 static void |
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57 copy_u8_ints (uint8_t *dest, const uint8_t *src, int n) |
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58 { |
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59 int i; |
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60 for(i=0;i<(n&3);i++){ |
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61 *dest++ = *src++; |
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62 } |
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63 n >>= 2; |
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64 for(i=0;i<n;i++){ |
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65 *(uint32_t *)dest = *(uint32_t *)src; |
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66 dest += 4; |
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67 src += 4; |
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68 } |
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69 } |
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70 OIL_DEFINE_IMPL (copy_u8_ints, copy_u8); |
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71 #endif |
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72 |
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73 #ifdef HAVE_UNALIGNED_ACCESS |
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74 /* Submitted by Adam Moss */ |
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75 static void |
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76 copy_u8_llints (uint8_t *dest, const uint8_t *src, int n) |
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77 { |
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78 int i; |
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79 for(i=0;i<(n&7);i++){ |
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80 *dest++ = *src++; |
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81 } |
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82 n >>= 3; |
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83 for(i=0;i<n;i++){ |
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84 *(uint64_t *)dest = *(uint64_t *)src; |
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85 dest += 8; |
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86 src += 8; |
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87 } |
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88 } |
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89 OIL_DEFINE_IMPL (copy_u8_llints, copy_u8); |
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90 #endif |
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91 |
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92 #ifdef HAVE_UNALIGNED_ACCESS |
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93 /* Submitted by Adam Moss */ |
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94 static void |
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95 copy_u8_llints_duff (uint8_t *dest, const uint8_t *src, int n) |
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96 { |
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97 switch(n&7) { |
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98 case 7: *dest++ = *src++; |
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99 case 6: *dest++ = *src++; |
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100 case 5: *dest++ = *src++; |
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101 case 4: *dest++ = *src++; |
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102 case 3: *dest++ = *src++; |
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103 case 2: *dest++ = *src++; |
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104 case 1: *dest++ = *src++; |
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105 default: ; |
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106 } |
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107 n >>= 3; |
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108 while (n) { |
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109 switch (n & 15) { |
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110 default: |
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111 case 0: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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112 case 15: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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113 case 14: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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114 case 13: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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115 case 12: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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116 case 11: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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117 case 10: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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118 case 9: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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119 case 8: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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120 case 7: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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121 case 6: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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122 case 5: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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123 case 4: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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124 case 3: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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125 case 2: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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126 case 1: *(uint64_t *)dest = *(uint64_t *)src; dest += 8; src += 8; |
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127 } |
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128 n = (n - 1) & ~(int)15; |
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129 } |
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130 } |
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131 OIL_DEFINE_IMPL (copy_u8_llints_duff, copy_u8); |
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132 #endif |
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133 |
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134 |
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135 |
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136 #ifdef __SYMBIAN32__ |
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137 |
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138 OilFunctionImpl* __oil_function_impl_copy_u8_libc() { |
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139 return &_oil_function_impl_copy_u8_libc; |
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140 } |
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141 #endif |
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142 |
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143 #ifdef __SYMBIAN32__ |
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144 |
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145 OilFunctionImpl* __oil_function_impl_copy_u8_ptr() { |
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146 return &_oil_function_impl_copy_u8_ptr; |
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147 } |
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148 #endif |
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149 |
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150 #ifdef HAVE_UNALIGNED_ACCESS |
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151 #ifdef __SYMBIAN32__ |
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152 |
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153 OilFunctionImpl* __oil_function_impl_copy_u8_ints() { |
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154 return &_oil_function_impl_copy_u8_ints; |
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155 } |
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156 #endif |
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157 #endif |
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158 |
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159 #ifdef HAVE_UNALIGNED_ACCESS |
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160 #ifdef __SYMBIAN32__ |
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161 |
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162 OilFunctionImpl* __oil_function_impl_copy_u8_llints() { |
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163 return &_oil_function_impl_copy_u8_llints; |
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164 } |
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165 #endif |
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166 #endif |
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167 |
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168 #ifdef HAVE_UNALIGNED_ACCESS |
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169 #ifdef __SYMBIAN32__ |
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170 |
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171 OilFunctionImpl* __oil_function_impl_copy_u8_llints_duff() { |
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172 return &_oil_function_impl_copy_u8_llints_duff; |
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173 } |
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174 #endif |
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175 #endif |