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1 /* |
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2 * LIBOIL - Library of Optimized Inner Loops |
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3 * Copyright (c) 2001,2002,2003,2004 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 #include <liboil/liboil.h> |
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33 #include "jpeg.h" |
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34 |
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35 #include <math.h> |
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36 |
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37 /** |
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38 * oil_conv8x8_s16_f64: |
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39 * @d_8x8: |
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40 * @dstr: |
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41 * @s_8x8: |
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42 * @sstr: |
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43 * |
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44 * Converts elements in source array @s_8x8 to the destination |
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45 * type, placing the results in @d_8x8. |
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46 */ |
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47 OIL_DEFINE_CLASS (conv8x8_s16_f64, |
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48 "int16_t * d_8x8, int dstr, double *s_8x8, int sstr"); |
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49 /** |
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50 * oil_conv8x8_f64_s16: |
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51 * @d_8x8: |
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52 * @dstr: |
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53 * @s_8x8: |
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54 * @sstr: |
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55 * |
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56 * Converts elements in source array @s_8x8 to the destination |
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57 * type, placing the results in @d_8x8. The conversion of source |
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58 * values outside the destination range are undefined and |
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59 * implementation dependent. |
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60 */ |
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61 OIL_DEFINE_CLASS (conv8x8_f64_s16, |
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62 "double *d_8x8, int dstr, int16_t * s_8x8, int sstr"); |
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63 /** |
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64 * oil_clipconv8x8_u8_s16: |
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65 * @d_8x8: |
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66 * @dstr: |
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67 * @s_8x8: |
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68 * @sstr: |
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69 * |
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70 * Converts elements in source array @s_8x8 to the destination |
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71 * type, placing the results in @d_8x8. Source values outside |
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72 * the destination range are clipped to the destination range. |
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73 */ |
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74 OIL_DEFINE_CLASS (clipconv8x8_u8_s16, |
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75 "uint8_t * d_8x8, int dstr, int16_t * s_8x8, int sstr"); |
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76 |
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77 #define BLOCK8x8_F64(ptr, stride, row, column) \ |
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78 (*((double *)((unsigned char *)ptr + stride*row) + column)) |
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79 |
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80 #define BLOCK8x8_PTR_F64(ptr, stride, row, column) \ |
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81 ((double *)((unsigned char *)ptr + stride*row) + column) |
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82 |
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83 #define BLOCK8x8_S16(ptr, stride, row, column) \ |
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84 (*((int16_t *)((unsigned char *)ptr + stride*row) + column)) |
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85 |
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86 #define BLOCK8x8_U8(ptr, stride, row, column) \ |
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87 (*((uint8_t *)((unsigned char *)ptr + stride*row) + column)) |
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88 |
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89 |
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90 static void |
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91 conv8x8_s16_f64_c (int16_t * dest, int dstr, double *src, int sstr) |
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92 { |
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93 int i, j; |
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94 |
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95 for (i = 0; i < 8; i++) { |
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96 for (j = 0; j < 8; j++) { |
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97 BLOCK8x8_S16 (dest, dstr, i, j) = floor (0.5 + BLOCK8x8_F64 (src, sstr, i, j)); |
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98 } |
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99 } |
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100 } |
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101 |
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102 OIL_DEFINE_IMPL_REF (conv8x8_s16_f64_c, conv8x8_s16_f64); |
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103 |
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104 static void |
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105 conv8x8_f64_s16_c (double *dest, int dstr, int16_t * src, int sstr) |
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106 { |
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107 int i, j; |
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108 |
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109 for (i = 0; i < 8; i++) { |
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110 for (j = 0; j < 8; j++) { |
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111 BLOCK8x8_F64 (dest, dstr, i, j) = BLOCK8x8_S16 (src, sstr, i, j); |
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112 } |
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113 } |
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114 } |
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115 |
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116 OIL_DEFINE_IMPL_REF (conv8x8_f64_s16_c, conv8x8_f64_s16); |
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117 |
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118 static void |
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119 clipconv8x8_u8_s16_c (uint8_t * dest, int dstr, int16_t * src, int sstr) |
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120 { |
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121 int i, j; |
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122 int16_t x; |
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123 |
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124 for (i = 0; i < 8; i++) { |
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125 for (j = 0; j < 8; j++) { |
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126 x = BLOCK8x8_S16 (src, sstr, i, j); |
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127 if (x < 0) |
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128 x = 0; |
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129 if (x > 255) |
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130 x = 255; |
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131 BLOCK8x8_U8 (dest, dstr, i, j) = x; |
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132 } |
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133 } |
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134 } |
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135 |
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136 OIL_DEFINE_IMPL_REF (clipconv8x8_u8_s16_c, clipconv8x8_u8_s16); |
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137 |
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138 |
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139 #ifdef __SYMBIAN32__ |
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140 |
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141 OilFunctionClass* __oil_function_class_conv8x8_s16_f64() { |
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142 return &_oil_function_class_conv8x8_s16_f64; |
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143 } |
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144 #endif |
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145 |
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146 #ifdef __SYMBIAN32__ |
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147 |
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148 OilFunctionClass* __oil_function_class_conv8x8_f64_s16() { |
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149 return &_oil_function_class_conv8x8_f64_s16; |
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150 } |
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151 #endif |
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152 |
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153 #ifdef __SYMBIAN32__ |
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154 |
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155 OilFunctionClass* __oil_function_class_clipconv8x8_u8_s16() { |
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156 return &_oil_function_class_clipconv8x8_u8_s16; |
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157 } |
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158 #endif |
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159 |
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160 |
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161 |
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162 #ifdef __SYMBIAN32__ |
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163 |
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164 OilFunctionImpl* __oil_function_impl_conv8x8_s16_f64_c() { |
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165 return &_oil_function_impl_conv8x8_s16_f64_c; |
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166 } |
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167 #endif |
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168 |
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169 #ifdef __SYMBIAN32__ |
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170 |
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171 OilFunctionImpl* __oil_function_impl_conv8x8_f64_s16_c() { |
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172 return &_oil_function_impl_conv8x8_f64_s16_c; |
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173 } |
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174 #endif |
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175 |
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176 #ifdef __SYMBIAN32__ |
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177 |
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178 OilFunctionImpl* __oil_function_impl_clipconv8x8_u8_s16_c() { |
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179 return &_oil_function_impl_clipconv8x8_u8_s16_c; |
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180 } |
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181 #endif |
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182 |
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183 |
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184 |
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185 #ifdef __SYMBIAN32__ |
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186 |
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187 EXPORT_C void** _oil_function_class_ptr_conv8x8_s16_f64 () { |
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188 oil_function_class_ptr_conv8x8_s16_f64 = __oil_function_class_conv8x8_s16_f64(); |
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189 return &oil_function_class_ptr_conv8x8_s16_f64->func; |
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190 } |
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191 #endif |
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192 |
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193 #ifdef __SYMBIAN32__ |
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194 |
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195 EXPORT_C void** _oil_function_class_ptr_conv8x8_f64_s16 () { |
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196 oil_function_class_ptr_conv8x8_f64_s16 = __oil_function_class_conv8x8_f64_s16(); |
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197 return &oil_function_class_ptr_conv8x8_f64_s16->func; |
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198 } |
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199 #endif |
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200 |
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201 #ifdef __SYMBIAN32__ |
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202 |
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203 EXPORT_C void** _oil_function_class_ptr_clipconv8x8_u8_s16 () { |
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204 oil_function_class_ptr_clipconv8x8_u8_s16 = __oil_function_class_clipconv8x8_u8_s16(); |
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205 return &oil_function_class_ptr_clipconv8x8_u8_s16->func; |
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206 } |
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207 #endif |
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208 |