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1 /* |
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2 * Copyright (c) 2010 Ixonos Plc. |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of the "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - Initial contribution |
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11 * |
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12 * Contributors: |
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13 * Ixonos Plc |
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14 * |
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15 * Description: |
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16 * Block copying functions. |
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17 * |
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18 */ |
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19 |
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20 |
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21 |
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22 |
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23 #include "h263dconfig.h" |
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24 |
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25 |
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26 /* |
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27 * |
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28 * blcMemSetIncBuf |
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29 * |
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30 * Parameters: |
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31 * void HUGE *buf destination buffer |
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32 * int ch input value |
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33 * size_t count the number of values to put into the buffer |
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34 * |
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35 * Function: |
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36 * This macro sets count bytes of buf into the low-order byte of ch |
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37 * and increases buf by count. |
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38 * |
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39 * Changes: |
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40 * buf |
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41 * |
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42 * Returns: |
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43 * Nothing. |
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44 * |
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45 * Error codes: |
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46 * None. |
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47 * |
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48 */ |
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49 |
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50 #define blcMemSetIncBuf(buf, ch, count) \ |
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51 MEMSET(buf, ch, count); \ |
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52 buf += count |
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53 |
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54 |
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55 /* |
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56 * |
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57 * blcCopyRowNBC copy a row without border checking |
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58 * |
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59 * Parameters: |
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60 * u_char HUGE *srcMem source row |
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61 * u_char HUGE *dstMem destination row |
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62 * |
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63 * int xlt0 ignored |
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64 * int xNormal See blcCopyBlockBC. |
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65 * int xgtmax ignored |
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66 * |
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67 * Function: |
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68 * This macro copies a row of pixels and assumes that |
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69 * - all pixels are within the image area |
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70 * - the pixels are in integer positions |
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71 * |
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72 * dstMem is increased by xNormal |
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73 * srcMem is increased by xNormal - 1 |
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74 * |
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75 * Changes: |
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76 * srcMem |
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77 * dstMem |
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78 * |
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79 * Returns: |
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80 * Nothing. |
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81 * |
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82 * Error codes: |
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83 * None. |
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84 * |
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85 */ |
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86 |
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87 #define blcCopyRowNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, roundIncNotUsed) \ |
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88 { \ |
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89 MEMCPY(dstMem, srcMem, xNormal); \ |
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90 dstMem += xNormal; \ |
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91 srcMem += xNormal - 1; \ |
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92 } |
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93 |
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94 |
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95 /* |
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96 * |
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97 * blcCopyRowBC copy a row with border checking |
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98 * |
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99 * Parameters: |
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100 * u_char HUGE *srcMem source row |
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101 * u_char HUGE *dstMem destination row |
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102 * |
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103 * int xlt0 See blcCopyBlockBC. |
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104 * int xNormal See blcCopyBlockBC. |
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105 * int xgtmax See blcCopyBlockBC. |
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106 * |
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107 * Function: |
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108 * This macro copies a row of pixels and assumes that |
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109 * - xlt0 pixels are in the left side of the image area and |
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110 * - xgtmax pixels are in the right side of the image area and |
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111 * - the pixels are in integer positions |
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112 * |
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113 * dstMem is increased by xlt0 + xNormal + xgtmax |
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114 * srcMem is increased by xNormal - 1 if xNormal > 0 |
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115 * |
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116 * Changes: |
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117 * srcMem |
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118 * dstMem |
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119 * |
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120 * Returns: |
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121 * Nothing. |
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122 * |
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123 * Error codes: |
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124 * None. |
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125 * |
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126 */ |
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127 |
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128 #define blcCopyRowBC(srcMem, dstMem, xlt0, xNormal, xgtmax, roundIncNotUsed) \ |
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129 { \ |
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130 if (xlt0) MEMSET(dstMem, *srcMem, xlt0); \ |
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131 dstMem += xlt0; \ |
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132 if (xNormal) blcCopyRowNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, roundIncNotUsed); \ |
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133 if (xgtmax) MEMSET(dstMem, *srcMem, xgtmax); \ |
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134 dstMem += xgtmax; \ |
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135 } |
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136 |
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137 |
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138 /* |
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139 * |
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140 * blcCopyRowSubXNBC |
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141 * |
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142 * Parameters: |
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143 * u_char HUGE *srcMem source row |
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144 * u_char HUGE *dstMem destination row |
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145 * |
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146 * int xlt0 ignored |
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147 * int xNormal See blcCopyBlockBC. |
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148 * int xgtmax ignored |
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149 * |
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150 * roundInc See blcCopyBlockSub*. |
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151 * |
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152 * Function: |
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153 * This macro copies a row of pixels and assumes that |
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154 * - all pixels are within the image area |
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155 * - the pixels are in integer pixel position in vertical direction |
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156 * - the pixels are in half pixel position in horizontal direction |
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157 * |
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158 * dstMem is increased by xNormal |
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159 * srcMem is increased by xNormal |
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160 * |
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161 * Changes: |
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162 * srcMem |
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163 * dstMem |
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164 * loopVar |
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165 * |
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166 * Returns: |
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167 * Nothing. |
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168 * |
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169 * Error codes: |
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170 * None. |
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171 * |
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172 */ |
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173 |
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174 #define blcCopyRowSubXNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, roundInc) \ |
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175 for (loopVar = xNormal; loopVar; loopVar--, srcMem++) \ |
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176 *dstMem++ = (u_char) ((*srcMem + *(srcMem + 1) + roundInc) >> 1) |
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177 |
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178 |
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179 /* |
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180 * |
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181 * blcCopyRowSubXBC |
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182 * |
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183 * Parameters: |
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184 * u_char HUGE *srcMem source row |
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185 * u_char HUGE *dstMem destination row |
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186 * |
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187 * int xlt0 See blcCopyBlockBC. |
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188 * int xNormal See blcCopyBlockBC. |
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189 * int xgtmax See blcCopyBlockBC. |
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190 * |
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191 * roundInc See blcCopyBlockSub*. |
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192 * |
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193 * Function: |
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194 * This macro copies a row of pixels and assumes that |
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195 * - xlt0 pixels are in the left side of the image area and |
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196 * - xgtmax pixels are in the right side of the image area and |
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197 * - the pixels are in integer pixel position in vertical direction |
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198 * - the pixels are in half pixel position in horizontal direction |
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199 * |
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200 * dstMem is increased by xlt0 + xNormal + xgtmax |
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201 * srcMem is increased by xlt0 + xNormal + xgtmax |
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202 * |
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203 * Changes: |
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204 * srcMem |
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205 * dstMem |
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206 * loopVar |
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207 * |
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208 * Returns: |
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209 * Nothing. |
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210 * |
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211 * Error codes: |
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212 * None. |
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213 * |
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214 */ |
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215 |
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216 #define blcCopyRowSubXBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, roundInc) \ |
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217 { \ |
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218 if (xlt0) \ |
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219 blcMemSetIncBuf(dstMem, *srcMem, xlt0); \ |
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220 blcCopyRowSubXNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, roundInc); \ |
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221 if (xgtmax) blcMemSetIncBuf(dstMem, *srcMem, xgtmax); \ |
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222 } |
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223 |
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224 |
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225 /* |
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226 * |
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227 * blcCopyRowSubYNBC |
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228 * |
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229 * Parameters: |
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230 * u_char HUGE *srcMem source row |
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231 * u_char HUGE *dstMem destination row |
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232 * |
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233 * int xlt0 ignored |
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234 * int xNormal See blcCopyBlockBC. |
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235 * int xgtmax ignored |
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236 * |
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237 * roundInc See blcCopyBlockSub*. |
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238 * |
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239 * Function: |
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240 * This macro copies a row of pixels and assumes that |
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241 * - all pixels are within the image area |
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242 * - the pixels are in half pixel position in vertical direction |
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243 * - the pixels are in integer pixel position in horizontal direction |
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244 * |
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245 * dstMem is increased by xNormal |
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246 * srcMem is increased by xNormal - 1 if xNormal > 0 |
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247 * |
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248 * Changes: |
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249 * srcMem |
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250 * dstMem |
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251 * loopVar |
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252 * |
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253 * Returns: |
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254 * Nothing. |
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255 * |
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256 * Error codes: |
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257 * None. |
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258 * |
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259 */ |
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260 |
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261 #define blcCopyRowSubYNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, \ |
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262 srcXSize, roundInc) \ |
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263 { \ |
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264 for (loopVar = xNormal; loopVar; loopVar--, srcMem++) \ |
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265 *dstMem++ = (u_char) ((*srcMem + *(srcMem + srcXSize) + roundInc) >> 1); \ |
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266 if (xNormal) srcMem--; \ |
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267 } |
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268 |
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269 |
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270 /* |
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271 * |
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272 * blcCopyRowSubYBC |
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273 * |
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274 * Parameters: |
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275 * u_char HUGE *srcMem source row |
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276 * u_char HUGE *dstMem destination row |
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277 * |
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278 * int xlt0 See blcCopyBlockBC. |
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279 * int xNormal See blcCopyBlockBC. |
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280 * int xgtmax See blcCopyBlockBC. |
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281 * |
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282 * roundInc See blcCopyBlockSub*. |
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283 * |
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284 * Function: |
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285 * This macro copies a row of pixels and assumes that |
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286 * - xlt0 pixels are in the left side of the image area and |
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287 * - xgtmax pixels are in the right side of the image area and |
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288 * - the pixels are in half pixel position in vertical direction |
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289 * - the pixels are in integer pixel position in horizontal direction |
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290 * |
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291 * dstMem is increased by xlt0 + xNormal + xgtmax |
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292 * srcMem is increased by xNormal - 1 if xNormal > 0 |
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293 * |
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294 * Changes: |
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295 * srcMem |
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296 * dstMem |
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297 * loopVar |
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298 * |
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299 * Returns: |
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300 * Nothing. |
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301 * |
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302 * Error codes: |
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303 * None. |
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304 * |
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305 */ |
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306 |
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307 #define blcCopyRowSubYBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, \ |
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308 srcXSize, roundInc) \ |
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309 { \ |
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310 if (xlt0) { \ |
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311 *dstMem++ = (u_char) ((*srcMem + *(srcMem + srcXSize) + roundInc) >> 1); \ |
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312 if (xlt0 > 1) blcMemSetIncBuf(dstMem, *(dstMem - 1), xlt0 - 1); \ |
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313 } \ |
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314 blcCopyRowSubYNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, \ |
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315 srcXSize, roundInc); \ |
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316 if (xgtmax) { \ |
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317 if (xNormal) { \ |
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318 blcMemSetIncBuf(dstMem, *(dstMem - 1), xgtmax); \ |
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319 } \ |
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320 else { \ |
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321 *dstMem++ = (u_char) ((*srcMem + *(srcMem + srcXSize) + roundInc) >> 1); \ |
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322 if (xgtmax > 1) blcMemSetIncBuf(dstMem, *(dstMem - 1), xgtmax - 1); \ |
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323 } \ |
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324 } \ |
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325 } |
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326 |
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327 |
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328 /* |
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329 * |
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330 * blcCopyRowSubXYNBC |
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331 * |
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332 * Parameters: |
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333 * u_char HUGE *srcMem source row |
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334 * u_char HUGE *dstMem destination row |
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335 * |
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336 * int xlt0 ignored |
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337 * int xNormal See blcCopyBlockBC. |
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338 * int xgtmax ignored |
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339 * |
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340 * roundInc See blcCopyBlockSub*. |
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341 * |
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342 * Function: |
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343 * This macro copies a row of pixels and assumes that |
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344 * - all pixels are within the image area |
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345 * - the pixels are in half pixel position in vertical direction |
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346 * - the pixels are in half pixel position in horizontal direction |
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347 * |
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348 * dstMem is increased by xNormal |
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349 * srcMem is increased by xNormal |
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350 * |
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351 * Changes: |
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352 * srcMem |
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353 * dstMem |
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354 * loopVar |
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355 * |
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356 * Returns: |
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357 * Nothing. |
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358 * |
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359 * Error codes: |
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360 * None. |
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361 * |
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362 */ |
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363 |
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364 #define blcCopyRowSubXYNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, \ |
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365 srcXSize, roundInc) \ |
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366 for (loopVar = xNormal; loopVar; loopVar--, srcMem++) \ |
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367 *dstMem++ = (u_char) ((*srcMem + *(srcMem + 1) + *(srcMem + srcXSize) + \ |
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368 *(srcMem + srcXSize + 1) + roundInc) >> 2) |
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369 |
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370 |
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371 /* |
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372 * |
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373 * blcCopyOutPicXPixelSubXYRoundInc1 |
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374 * blcCopyOutPicXPixelSubXYRoundInc2 |
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375 * |
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376 * Parameters: |
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377 * u_char HUGE *srcMem source row |
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378 * u_char HUGE *dstMem destination row |
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379 * srcXSize number of pixels (bytes) in source row |
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380 * |
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381 * Function: |
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382 * These macros copy one pixel which lies horizontally outside the picture |
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383 * area assuming that |
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384 * - the pixels are in half pixel position in vertical direction |
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385 * - the pixels are in half pixel position in horizontal direction |
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386 * |
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387 * If roundInc is 2, the macro takes advantage of the fact that |
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388 * (A + B + C + D + roundInc) / 4 = (A + A + C + C + 2) / 4 = |
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389 * (A + C + 1) / 2 |
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390 * when using the notation of section 6.1.2 of the H.263 recommendation. |
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391 * |
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392 * dstMem is increased by 1 |
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393 * |
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394 * Changes: |
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395 * dstMem |
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396 * |
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397 * Returns: |
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398 * Nothing. |
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399 * |
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400 * Error codes: |
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401 * None. |
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402 * |
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403 */ |
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404 |
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405 #define blcCopyOutPicXPixelSubXYRoundInc2(srcMem, dstMem, srcXSize) \ |
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406 *dstMem++ = (u_char) ((*srcMem + *(srcMem + srcXSize) + 1) >> 1) |
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407 |
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408 #define blcCopyOutPicXPixelSubXYRoundInc1(srcMem, dstMem, srcXSize) \ |
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409 *dstMem++ = (u_char) ((((*srcMem) << 1) + ((*(srcMem + srcXSize)) << 1) + 1) >> 2) |
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410 |
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411 |
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412 /* |
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413 * |
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414 * blcCopyRowSubXYBC |
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415 * |
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416 * Parameters: |
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417 * u_char HUGE *srcMem source row |
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418 * u_char HUGE *dstMem destination row |
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419 * |
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420 * int xlt0 ignored |
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421 * int xNormal See blcCopyBlockBC. |
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422 * int xgtmax ignored |
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423 * |
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424 * roundInc See blcCopyBlockSub*. |
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425 * |
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426 * Function: |
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427 * This macro copies a row of pixels and assumes that |
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428 * - xlt0 pixels are in the left side of the image area and |
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429 * - xgtmax pixels are in the right side of the image area and |
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430 * - the pixels are in half pixel position in vertical direction |
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431 * - the pixels are in half pixel position in horizontal direction |
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432 * |
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433 * dstMem is increased by xNormal |
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434 * srcMem is increased by xNormal |
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435 * |
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436 * Changes: |
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437 * srcMem |
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438 * dstMem |
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439 * loopVar |
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440 * |
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441 * Returns: |
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442 * Nothing. |
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443 * |
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444 * Error codes: |
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445 * None. |
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446 * |
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447 */ |
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448 |
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449 #define blcCopyRowSubXYBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, \ |
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450 srcXSize, roundInc) \ |
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451 { \ |
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452 if (xlt0) { \ |
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453 blcCopyOutPicXPixelSubXYRoundInc ## roundInc(srcMem, dstMem, srcXSize); \ |
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454 if (xlt0 > 1) blcMemSetIncBuf(dstMem, *(dstMem - 1), xlt0 - 1); \ |
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455 } \ |
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456 blcCopyRowSubXYNBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, \ |
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457 srcXSize, roundInc); \ |
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458 if (xgtmax) { \ |
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459 blcCopyOutPicXPixelSubXYRoundInc ## roundInc(srcMem, dstMem, srcXSize); \ |
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460 if (xgtmax > 1) blcMemSetIncBuf(dstMem, *(dstMem - 1), xgtmax - 1); \ |
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461 } \ |
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462 } |
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463 |
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464 |
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465 /* |
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466 * |
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467 * blcCopyOutPicRowSubXYRoundInc1 |
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468 * blcCopyOutPicRowSubXYRoundInc2 |
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469 * |
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470 * Parameters: |
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471 * u_char HUGE *srcMem source row |
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472 * u_char HUGE *dstMem destination row |
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473 * srcXSize number of pixels (bytes) in source row |
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474 * |
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475 * Function: |
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476 * These macros copy one row which lies vertically outside the picture |
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477 * area assuming that |
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478 * - the pixels are in half pixel position in vertical direction |
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479 * - the pixels are in half pixel position in horizontal direction |
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480 * |
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481 * If roundInc is 2, the macro takes advantage of the fact that |
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482 * (A + B + C + D + roundInc) / 4 = (A + A + B + B + 2) / 4 = |
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483 * (A + B + 1) / 2 |
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484 * when using the notation of section 6.1.2 of the H.263 recommendation. |
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485 * |
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486 * Changes: |
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487 * srcMem |
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488 * dstMem |
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489 * loopVar |
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490 * |
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491 * Returns: |
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492 * Nothing. |
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493 * |
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494 * Error codes: |
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495 * None. |
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496 * |
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497 */ |
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498 |
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499 #define blcCopyOutPicRowSubXYRoundInc2(borderCheck, srcMem, dstMem, \ |
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500 xlt0, xNormal, xgtmax, loopVar, srcXSize) \ |
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501 blcCopyRowSubX ## borderCheck(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, 1) |
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502 |
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503 #define blcCopyOutPicRowSubXYRoundInc1NBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, srcXSize) \ |
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504 for (loopVar = xNormal; loopVar; loopVar--, srcMem++) \ |
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505 *dstMem++ = (u_char) ((((*srcMem) << 1) + ((*(srcMem + 1)) << 1) + 1) >> 2) |
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506 |
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507 #define blcCopyOutPicRowSubXYRoundInc1BC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, srcXSize) \ |
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508 { \ |
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509 if (xlt0) {\ |
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510 blcMemSetIncBuf(dstMem, *(srcMem), xlt0); \ |
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511 } \ |
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512 blcCopyOutPicRowSubXYRoundInc1NBC(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar, srcXSize); \ |
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513 if (xgtmax) { \ |
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514 blcMemSetIncBuf(dstMem, *(srcMem), xgtmax); \ |
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515 } \ |
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516 } |
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517 |
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518 #define blcCopyOutPicRowSubXYRoundInc1(borderCheck, srcMem, dstMem, \ |
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519 xlt0, xNormal, xgtmax, loopVar, srcXSize) \ |
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520 blcCopyOutPicRowSubXYRoundInc1 ## borderCheck(srcMem, dstMem, \ |
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521 xlt0, xNormal, xgtmax, loopVar, srcXSize) |
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522 |
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523 |
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524 /* |
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525 * |
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526 * Integer pixel position (x and y picture boundary checks respectively): |
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527 * blcCopyBlockNoSubNBCBC |
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528 * blcCopyBlockNoSubBCNBC |
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529 * blcCopyBlockNoSubNBCNBC |
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530 * blcCopyBlockNoSubBCBC |
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531 * |
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532 * Half pixel position in horizontal direction: |
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533 * blcCopyBlockSubXNBC |
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534 * blcCopyBlockSubXBC |
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535 * |
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536 * Half pixel position in vertical direction: |
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537 * blcCopyBlockSubYNBC |
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538 * blcCopyBlockSubYBC |
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539 * |
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540 * Half pixel position in horizontal and vertical direction: |
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541 * blcCopyBlockSubXYNBC |
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542 * blcCopyBlockSubXYBC |
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543 * |
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544 * NBC means that all pixels are within the vertical range of the image area. |
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545 * BC means that ylt0 pixels are above the image area and ygtmax pixels are |
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546 * below the image area. |
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547 * |
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548 * Parameters: |
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549 * Note that some parameters are not included into every macro. |
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550 * |
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551 * routineName corresponding row copying macro name |
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552 * |
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553 * u_char HUGE *srcMem source block |
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554 * u_char HUGE *dstMem destination block |
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555 * |
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556 * int xlt0 See blcCopyBlockBC. |
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557 * int xNormal See blcCopyBlockBC. |
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558 * int xgtmax See blcCopyBlockBC. |
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559 * |
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560 * int ylt0 See blcCopyBlockBC. |
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561 * int yNormal See blcCopyBlockBC. |
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562 * int ygtmax See blcCopyBlockBC. |
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563 * |
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564 * loopVar1, loopVar2 loop variables |
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565 * |
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566 * srcXSize the horizontal size of the source image |
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567 * dstXSize the horizontal size of the destination image |
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568 * blkXSize the horizontal size of the block to be copied, |
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569 * should be equal to xlt0 + xNormal + xgtmax |
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570 * |
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571 * srcInc increment to srcMem (after row copying) |
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572 * to get the next row |
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573 * dstInc increment to dstMem (after row copying) |
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574 * to get the next row |
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575 * |
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576 * roundInc for subpixel functions only: |
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577 * for interpolation in X or Y directions: |
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578 * roundInc = 1 - RCONTROL, i.e. |
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579 * 1 if RCONTROL == 0, |
|
580 * 0 if RCONTROL == 1, |
|
581 * for interpolation in X and Y directions: |
|
582 * roundInc = 2 - RCONTROL, i.e. |
|
583 * 2 if RCONTROL == 0, |
|
584 * 1 if RCONTROL == 1 |
|
585 * |
|
586 * Function: |
|
587 * These macros copy a block of pixels. |
|
588 * |
|
589 * Changes: |
|
590 * srcMem |
|
591 * dstMem |
|
592 * loopVar1 |
|
593 * loopVar2 |
|
594 * |
|
595 * Returns: |
|
596 * Nothing. |
|
597 * |
|
598 * Error codes: |
|
599 * None. |
|
600 * |
|
601 */ |
|
602 |
|
603 |
|
604 #define blcCopyBlockNoSubNBC(routineName, srcMem, dstMem, \ |
|
605 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
606 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc) \ |
|
607 for (loopVar1 = yNormal; loopVar1; loopVar1--) { \ |
|
608 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, 0); \ |
|
609 srcMem += srcInc; \ |
|
610 dstMem += dstInc; \ |
|
611 } |
|
612 |
|
613 #define blcCopyBlockNoSubNBCBC(routineName, srcMem, dstMem, \ |
|
614 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
615 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc) \ |
|
616 blcCopyBlockNoSubNBC(routineName, srcMem, dstMem, xlt0, xNormal, xgtmax, \ |
|
617 ylt0, yNormal, ygtmax, loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, \ |
|
618 srcInc, dstInc) |
|
619 |
|
620 #define blcCopyBlockNoSubBCNBC(routineName, srcMem, dstMem, \ |
|
621 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
622 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc) \ |
|
623 { \ |
|
624 if (ylt0) { \ |
|
625 for (loopVar2 = ylt0; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
626 MEMCPY(dstMem, srcMem, blkXSize); \ |
|
627 } \ |
|
628 \ |
|
629 blcCopyBlockNoSubNBC(routineName, srcMem, dstMem, \ |
|
630 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
631 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc); \ |
|
632 \ |
|
633 if (ygtmax) { \ |
|
634 if (yNormal) srcMem -= srcXSize; \ |
|
635 for (loopVar2 = ygtmax; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
636 MEMCPY(dstMem, srcMem, blkXSize); \ |
|
637 } \ |
|
638 } |
|
639 |
|
640 #define blcCopyBlockNoSubNBCNBC(routineName, srcMem, dstMem, \ |
|
641 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
642 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc) \ |
|
643 for (loopVar1 = yNormal; loopVar1; loopVar1--) { \ |
|
644 MEMCPY(dstMem, srcMem, xNormal); \ |
|
645 dstMem += dstXSize; \ |
|
646 srcMem += srcXSize; \ |
|
647 } |
|
648 |
|
649 #define blcCopyBlockNoSubBCBC(routineName, srcMem, dstMem, \ |
|
650 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
651 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc) \ |
|
652 { \ |
|
653 if (ylt0) { \ |
|
654 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, 0); \ |
|
655 dstMem += dstInc; \ |
|
656 for (loopVar2 = ylt0 - 1; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
657 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
658 if (xNormal) srcMem -= (xNormal - 1); \ |
|
659 } \ |
|
660 \ |
|
661 blcCopyBlockNoSubNBC(routineName, srcMem, dstMem, \ |
|
662 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
663 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc); \ |
|
664 \ |
|
665 if (ygtmax) { \ |
|
666 if (yNormal) srcMem -= srcXSize; \ |
|
667 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, 0); \ |
|
668 dstMem += dstInc; \ |
|
669 for (loopVar2 = ygtmax - 1; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
670 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
671 } \ |
|
672 } |
|
673 |
|
674 #define blcCopyBlockSubXNBC(routineName, srcMem, dstMem, \ |
|
675 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
676 loopVar1, loopVar2, dstXSize, blkXSize, srcInc, dstInc, roundInc) \ |
|
677 for (loopVar1 = yNormal; loopVar1; loopVar1--) { \ |
|
678 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar2, roundInc); \ |
|
679 srcMem += srcInc; \ |
|
680 dstMem += dstInc; \ |
|
681 } |
|
682 |
|
683 #define blcCopyBlockSubXBC(routineName, srcMem, dstMem, \ |
|
684 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
685 loopVar1, loopVar2, dstXSize, blkXSize, srcInc, dstInc, roundInc) \ |
|
686 { \ |
|
687 if (ylt0) { \ |
|
688 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar2, roundInc); \ |
|
689 dstMem += dstInc; \ |
|
690 for (loopVar2 = ylt0 - 1; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
691 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
692 srcMem -= xNormal; \ |
|
693 } \ |
|
694 \ |
|
695 blcCopyBlockSubXNBC(routineName, srcMem, dstMem, xlt0, xNormal, xgtmax, \ |
|
696 ylt0, yNormal, ygtmax, loopVar1, loopVar2, dstXSize, blkXSize, \ |
|
697 srcInc, dstInc, roundInc); \ |
|
698 \ |
|
699 if (ygtmax) { \ |
|
700 if (!yNormal) { \ |
|
701 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar2, roundInc); \ |
|
702 dstMem += dstInc; \ |
|
703 } \ |
|
704 for (loopVar2 = ygtmax - !yNormal; loopVar2; loopVar2--, \ |
|
705 dstMem += dstXSize) \ |
|
706 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
707 } \ |
|
708 } |
|
709 |
|
710 #define blcCopyBlockSubYNBC(routineName, yoffRoutine, srcMem, dstMem, \ |
|
711 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
712 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, roundInc) \ |
|
713 for (loopVar1 = yNormal; loopVar1; loopVar1--) { \ |
|
714 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar2, srcXSize, roundInc); \ |
|
715 srcMem += srcInc; \ |
|
716 dstMem += dstInc; \ |
|
717 } \ |
|
718 |
|
719 #define blcCopyBlockSubYBC(normRoutine, yoffRoutine, srcMem, dstMem, \ |
|
720 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
721 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, roundInc) \ |
|
722 { \ |
|
723 if (ylt0) { \ |
|
724 yoffRoutine(srcMem, dstMem, xlt0, xNormal, xgtmax, roundInc); \ |
|
725 dstMem += dstInc; \ |
|
726 for (loopVar2 = ylt0 - 1; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
727 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
728 if (xNormal) srcMem -= (xNormal - 1); \ |
|
729 } \ |
|
730 \ |
|
731 blcCopyBlockSubYNBC(normRoutine, yoffRoutine, srcMem, dstMem, \ |
|
732 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
733 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, roundInc); \ |
|
734 \ |
|
735 if (ygtmax) { \ |
|
736 yoffRoutine(srcMem, dstMem, xlt0, xNormal, xgtmax, roundInc); \ |
|
737 dstMem += dstInc; \ |
|
738 for (loopVar2 = ygtmax - 1; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
739 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
740 } \ |
|
741 } |
|
742 |
|
743 #define blcCopyBlockSubXYNBC(routineName, notUsed, srcMem, dstMem, \ |
|
744 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
745 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, roundInc) \ |
|
746 for (loopVar1 = yNormal; loopVar1; loopVar1--) { \ |
|
747 routineName(srcMem, dstMem, xlt0, xNormal, xgtmax, loopVar2, \ |
|
748 srcXSize, roundInc); \ |
|
749 srcMem += srcInc; \ |
|
750 dstMem += dstInc; \ |
|
751 } \ |
|
752 |
|
753 #define blcCopyBlockSubXYBC(normRoutine, xoffBorderCheck, srcMem, dstMem, \ |
|
754 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
755 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, roundInc) \ |
|
756 { \ |
|
757 if (ylt0) { \ |
|
758 blcCopyOutPicRowSubXYRoundInc ## roundInc(xoffBorderCheck, srcMem, dstMem, \ |
|
759 xlt0, xNormal, xgtmax, loopVar2, srcXSize); \ |
|
760 dstMem += dstInc; \ |
|
761 for (loopVar2 = ylt0 - 1; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
762 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
763 srcMem -= xNormal; \ |
|
764 } \ |
|
765 \ |
|
766 blcCopyBlockSubXYNBC(normRoutine, yoffRoutine, srcMem, dstMem, \ |
|
767 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
768 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, roundInc); \ |
|
769 \ |
|
770 if (ygtmax) { \ |
|
771 blcCopyOutPicRowSubXYRoundInc ## roundInc(xoffBorderCheck, srcMem, dstMem, \ |
|
772 xlt0, xNormal, xgtmax, loopVar2, srcXSize); \ |
|
773 dstMem += dstInc; \ |
|
774 for (loopVar2 = ygtmax - 1; loopVar2; loopVar2--, dstMem += dstXSize) \ |
|
775 MEMCPY(dstMem, dstMem - dstXSize, blkXSize); \ |
|
776 } \ |
|
777 } |
|
778 |
|
779 |
|
780 /* |
|
781 * |
|
782 * blcCopyBlockBCVar |
|
783 * |
|
784 * Parameters: |
|
785 * xoffBorderCheck NBC if all the pixels of the block are within |
|
786 * the horizontal range of the image area |
|
787 * BC otherwise |
|
788 * yoffBorderCheck NBC if all the pixels of the block are within |
|
789 * the vertical range of the image area |
|
790 * BC otherwise |
|
791 * |
|
792 * u_char HUGE *srcMem source block |
|
793 * u_char HUGE *dstMem destination block |
|
794 * |
|
795 * int xlt0 See blcCopyBlockBC. |
|
796 * int xNormal See blcCopyBlockBC. |
|
797 * int xgtmax See blcCopyBlockBC. |
|
798 * int ylt0 See blcCopyBlockBC. |
|
799 * int yNormal See blcCopyBlockBC. |
|
800 * int ygtmax See blcCopyBlockBC. |
|
801 * int subpixelX See blcCopyBlockBC. |
|
802 * int subpixelY See blcCopyBlockBC. |
|
803 * |
|
804 * loopVar1, loopVar2 loop variables |
|
805 * |
|
806 * srcXSize the horizontal size of the source image |
|
807 * dstXSize the horizontal size of the destination image |
|
808 * |
|
809 * blkXSize the horizontal size of the block to be copied, |
|
810 * should be equal to xlt0 + xNormal + xgtmax |
|
811 * blkYSize the vertical size of the block to be copied, |
|
812 * should be equal to ylt0 + yNormal + ygtmax |
|
813 * |
|
814 * dstInc increment to dstMem (after row copying) |
|
815 * to get the next row |
|
816 * |
|
817 * rcontrol See blcCopyBlockBC. |
|
818 * |
|
819 * Function: |
|
820 * This macro copies a block with appropriate image border crossing |
|
821 * checkings. |
|
822 * |
|
823 * Changes: |
|
824 * srcMem |
|
825 * dstMem |
|
826 * loopVar1 |
|
827 * loopVar2 |
|
828 * |
|
829 * Returns: |
|
830 * Nothing. |
|
831 * |
|
832 * Error codes: |
|
833 * None. |
|
834 * |
|
835 */ |
|
836 |
|
837 #define blcCopyBlockBCVar(xoffBorderCheck, yoffBorderCheck, srcMem, dstMem, \ |
|
838 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
839 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, \ |
|
840 rcontrol) \ |
|
841 { \ |
|
842 if (subpixelX) { \ |
|
843 if (subpixelY) { \ |
|
844 int srcInc = srcXSize - xNormal; \ |
|
845 if (rcontrol) { \ |
|
846 blcCopyBlockSubXY ## yoffBorderCheck( \ |
|
847 blcCopyRowSubXY ## xoffBorderCheck, \ |
|
848 xoffBorderCheck, srcMem, \ |
|
849 dstMem, xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
850 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, 1); \ |
|
851 } \ |
|
852 else { \ |
|
853 blcCopyBlockSubXY ## yoffBorderCheck( \ |
|
854 blcCopyRowSubXY ## xoffBorderCheck, \ |
|
855 xoffBorderCheck, srcMem, \ |
|
856 dstMem, xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
857 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, 2); \ |
|
858 } \ |
|
859 } \ |
|
860 else /* !subPixelY */ { \ |
|
861 int srcInc = srcXSize - xNormal; \ |
|
862 if (rcontrol) { \ |
|
863 blcCopyBlockSubX ## yoffBorderCheck( \ |
|
864 blcCopyRowSubX ## xoffBorderCheck, srcMem, dstMem, \ |
|
865 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
866 loopVar1, loopVar2, dstXSize, blkXSize, srcInc, dstInc, 0) \ |
|
867 } \ |
|
868 else { \ |
|
869 blcCopyBlockSubX ## yoffBorderCheck( \ |
|
870 blcCopyRowSubX ## xoffBorderCheck, srcMem, dstMem, \ |
|
871 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
872 loopVar1, loopVar2, dstXSize, blkXSize, srcInc, dstInc, 1) \ |
|
873 } \ |
|
874 } \ |
|
875 } \ |
|
876 \ |
|
877 else /* !subpixelX */ { \ |
|
878 if (subpixelY) { \ |
|
879 int srcInc = srcXSize - xNormal + ((xNormal) ? 1 : 0); \ |
|
880 if (rcontrol) { \ |
|
881 blcCopyBlockSubY ## yoffBorderCheck( \ |
|
882 blcCopyRowSubY ## xoffBorderCheck, \ |
|
883 blcCopyRow ## yoffBorderCheck, srcMem, dstMem, \ |
|
884 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
885 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, 0); \ |
|
886 } \ |
|
887 else { \ |
|
888 blcCopyBlockSubY ## yoffBorderCheck( \ |
|
889 blcCopyRowSubY ## xoffBorderCheck, \ |
|
890 blcCopyRow ## yoffBorderCheck, srcMem, dstMem, \ |
|
891 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
892 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc, 1); \ |
|
893 } \ |
|
894 } \ |
|
895 else /* !subpixelY */ { \ |
|
896 int srcInc = srcXSize - xNormal + ((xNormal) ? 1 : 0); \ |
|
897 blcCopyBlockNoSub ## yoffBorderCheck ## xoffBorderCheck ( \ |
|
898 blcCopyRow ## xoffBorderCheck, srcMem, dstMem, \ |
|
899 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, \ |
|
900 loopVar1, loopVar2, srcXSize, dstXSize, blkXSize, srcInc, dstInc); \ |
|
901 } \ |
|
902 } \ |
|
903 } |
|
904 |
|
905 |
|
906 /* |
|
907 * |
|
908 * blcCopyBlockBC |
|
909 * blcCopyBlockNBC |
|
910 * |
|
911 * Parameters: |
|
912 * u_char HUGE *srcMem source block |
|
913 * u_char HUGE *dstMem destination block |
|
914 * |
|
915 * The next parameters describe a row of source pixels. |
|
916 * int xlt0 the number of the source pixels in the left of |
|
917 * the image area |
|
918 * int xNormal the number of the source pixels within the image |
|
919 * area |
|
920 * int xgtmax the number of the source pixels in the right of |
|
921 * the image area |
|
922 * |
|
923 * The next parameters describe a column of source pixels. |
|
924 * int ylt0 the number of the source pixels above the image area |
|
925 * int yNormal the number of the source pixels withing the image |
|
926 * area |
|
927 * int ygtmax the number of the source pixels below the image area |
|
928 * |
|
929 * int subpixelX 1 if source pixels are in half pixel position in |
|
930 * horizontal direction, 0 otherwise |
|
931 * int subpixelY 1 if source pixels are in half pixel position in |
|
932 * vertical direction, 0 otherwise |
|
933 * |
|
934 * srcXSize the horizontal size of the source image |
|
935 * dstXSize the horizontal size of the destination image |
|
936 * |
|
937 * blkXSize the horizontal size of the block to be copied, |
|
938 * should be equal to xlt0 + xNormal + xgtmax |
|
939 * blkYSize the vertical size of the block to be copied, |
|
940 * should be equal to ylt0 + yNormal + ygtmax |
|
941 * rcontrol 0 or 1, RCONTROL as in section 6.1.2. of H.263 |
|
942 * version 2 |
|
943 * |
|
944 * Function: |
|
945 * blcCopyBlockBC macro copies a block according to unrestricted motion |
|
946 * vector mode, i.e. it checks if the motion vector points outside the |
|
947 * image area, i.e. xlt0, xgtmax, ylt0 or ygtmax != 0. |
|
948 * blcCopyBlockNBC macro copies a block assuming that the whole block is |
|
949 * inside the image area. blcCopyBlockNBC is used in normal prediction |
|
950 * mode (no options are used). |
|
951 * |
|
952 * Changes: |
|
953 * srcMem |
|
954 * dstMem |
|
955 * |
|
956 * Returns: |
|
957 * Nothing. |
|
958 * |
|
959 * Error codes: |
|
960 * None. |
|
961 * |
|
962 */ |
|
963 |
|
964 /*#define BLC_COPY_BLOCK_MACROS*/ |
|
965 #ifdef BLC_COPY_BLOCK_MACROS |
|
966 #define blcCopyBlockBC(srcMem, dstMem, \ |
|
967 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
968 srcXSize, dstXSize, blkXSize, blkYSize, rcontrol) \ |
|
969 { \ |
|
970 int \ |
|
971 dstInc = dstXSize - blkXSize, \ |
|
972 i, j; \ |
|
973 \ |
|
974 if (xNormal == blkXSize) { \ |
|
975 if (yNormal == blkYSize) { \ |
|
976 blcCopyBlockBCVar(NBC, NBC, srcMem, dstMem, \ |
|
977 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
978 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); \ |
|
979 } \ |
|
980 else { \ |
|
981 blcCopyBlockBCVar(NBC, BC, srcMem, dstMem, \ |
|
982 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
983 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); \ |
|
984 } \ |
|
985 } \ |
|
986 else { \ |
|
987 if (yNormal == blkYSize) { \ |
|
988 blcCopyBlockBCVar(BC, NBC, srcMem, dstMem, \ |
|
989 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
990 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); \ |
|
991 } \ |
|
992 else { \ |
|
993 blcCopyBlockBCVar(BC, BC, srcMem, dstMem, \ |
|
994 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
995 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); \ |
|
996 } \ |
|
997 } \ |
|
998 } |
|
999 |
|
1000 #define blcCopyBlockNBC(srcMem, dstMem, \ |
|
1001 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
1002 srcXSize, dstXSize, blkXSize, blkYSize, rcontrol) \ |
|
1003 { \ |
|
1004 int \ |
|
1005 dstInc = dstXSize - blkXSize, \ |
|
1006 i, j; \ |
|
1007 \ |
|
1008 blcCopyBlockBCVar(NBC, NBC, srcMem, dstMem, \ |
|
1009 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, \ |
|
1010 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); \ |
|
1011 } |
|
1012 |
|
1013 #else |
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1014 static void blcCopyBlockBC(u_char HUGE *srcMem, u_char HUGE *dstMem, |
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1015 int xlt0, int xNormal, int xgtmax, int ylt0, int yNormal, int ygtmax, |
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1016 int subpixelX, int subpixelY, |
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1017 int srcXSize, int dstXSize, int blkXSize, int blkYSize, int rcontrol) |
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1018 { |
|
1019 int |
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1020 dstInc = dstXSize - blkXSize, |
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1021 i, j; |
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1022 |
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1023 if (xNormal == blkXSize) { |
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1024 if (yNormal == blkYSize) { |
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1025 blcCopyBlockBCVar(NBC, NBC, srcMem, dstMem, |
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1026 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, |
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1027 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); |
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1028 } |
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1029 else { |
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1030 blcCopyBlockBCVar(NBC, BC, srcMem, dstMem, |
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1031 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, |
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1032 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); |
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1033 } |
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1034 } |
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1035 else { |
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1036 if (yNormal == blkYSize) { |
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1037 blcCopyBlockBCVar(BC, NBC, srcMem, dstMem, |
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1038 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, |
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1039 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); |
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1040 } |
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1041 else { |
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1042 blcCopyBlockBCVar(BC, BC, srcMem, dstMem, |
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1043 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, |
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1044 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); |
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1045 } |
|
1046 } |
|
1047 } |
|
1048 |
|
1049 static void blcCopyBlockNBC(u_char HUGE *srcMem, u_char HUGE *dstMem, |
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1050 int xlt0, int xNormal, int xgtmax, int ylt0, int yNormal, int ygtmax, |
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1051 int subpixelX, int subpixelY, |
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1052 int srcXSize, int dstXSize, int blkXSize, int blkYSize, int rcontrol) |
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1053 { |
|
1054 int |
|
1055 dstInc = dstXSize - blkXSize, |
|
1056 i, j; |
|
1057 |
|
1058 blcCopyBlockBCVar(NBC, NBC, srcMem, dstMem, |
|
1059 xlt0, xNormal, xgtmax, ylt0, yNormal, ygtmax, subpixelX, subpixelY, |
|
1060 j, i, srcXSize, dstXSize, blkXSize, blkYSize, dstInc, rcontrol); |
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1061 } |
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1062 #endif |
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1063 |
|
1064 |
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1065 // End of file |