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annotate docs/html/sdldisplayyuvoverlay.html @ 894:1d1a823904d8

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Don't crash if the stretch routines are used on hardware surfaces
author Sam Lantinga <slouken@libsdl.org>
date Sun, 16 May 2004 21:08:55 +0000
parents 355632dca928
children
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1 <HTML
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2 ><HEAD
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3 ><TITLE
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4 >SDL_DisplayYUVOverlay</TITLE
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5 ><META
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6 NAME="GENERATOR"
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
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8 "><LINK
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9 REL="HOME"
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10 TITLE="SDL Library Documentation"
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11 HREF="index.html"><LINK
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12 REL="UP"
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13 TITLE="Video"
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14 HREF="video.html"><LINK
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15 REL="PREVIOUS"
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16 TITLE="SDL_UnlockYUVOverlay"
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17 HREF="sdlunlockyuvoverlay.html"><LINK
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18 REL="NEXT"
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19 TITLE="SDL_FreeYUVOverlay"
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20 HREF="sdlfreeyuvoverlay.html"></HEAD
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21 ><BODY
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22 CLASS="REFENTRY"
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23 BGCOLOR="#FFF8DC"
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24 TEXT="#000000"
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25 LINK="#0000ee"
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26 VLINK="#551a8b"
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27 ALINK="#ff0000"
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28 ><DIV
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29 CLASS="NAVHEADER"
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30 ><TABLE
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31 SUMMARY="Header navigation table"
0
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32 WIDTH="100%"
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33 BORDER="0"
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34 CELLPADDING="0"
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35 CELLSPACING="0"
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36 ><TR
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37 ><TH
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38 COLSPAN="3"
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39 ALIGN="center"
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40 >SDL Library Documentation</TH
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41 ></TR
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42 ><TR
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43 ><TD
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44 WIDTH="10%"
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45 ALIGN="left"
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46 VALIGN="bottom"
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47 ><A
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48 HREF="sdlunlockyuvoverlay.html"
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49 ACCESSKEY="P"
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50 >Prev</A
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51 ></TD
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52 ><TD
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53 WIDTH="80%"
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54 ALIGN="center"
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55 VALIGN="bottom"
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56 ></TD
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57 ><TD
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58 WIDTH="10%"
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59 ALIGN="right"
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60 VALIGN="bottom"
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61 ><A
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62 HREF="sdlfreeyuvoverlay.html"
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63 ACCESSKEY="N"
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64 >Next</A
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65 ></TD
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66 ></TR
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67 ></TABLE
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68 ><HR
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69 ALIGN="LEFT"
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70 WIDTH="100%"></DIV
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71 ><H1
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72 ><A
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73 NAME="SDLDISPLAYYUVOVERLAY"
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74 ></A
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75 >SDL_DisplayYUVOverlay</H1
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76 ><DIV
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77 CLASS="REFNAMEDIV"
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78 ><A
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79 NAME="AEN2908"
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80 ></A
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81 ><H2
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82 >Name</H2
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83 >SDL_DisplayYUVOverlay&nbsp;--&nbsp;Blit the overlay to the display</DIV
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84 ><DIV
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85 CLASS="REFSYNOPSISDIV"
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86 ><A
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87 NAME="AEN2911"
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88 ></A
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89 ><H2
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90 >Synopsis</H2
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91 ><DIV
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92 CLASS="FUNCSYNOPSIS"
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93 ><A
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94 NAME="AEN2912"
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95 ></A
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96 ><P
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97 ></P
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98 ><PRE
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99 CLASS="FUNCSYNOPSISINFO"
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100 >#include "SDL.h"</PRE
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101 ><P
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102 ><CODE
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103 ><CODE
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104 CLASS="FUNCDEF"
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105 >int <B
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106 CLASS="FSFUNC"
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107 >SDL_DisplayYUVOverlay</B
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108 ></CODE
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109 >(SDL_Overlay *overlay, SDL_Rect *dstrect);</CODE
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110 ></P
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111 ><P
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112 ></P
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113 ></DIV
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114 ></DIV
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115 ><DIV
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116 CLASS="REFSECT1"
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117 ><A
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118 NAME="AEN2918"
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119 ></A
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120 ><H2
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121 >Description</H2
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122 ><P
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123 >Blit the <TT
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124 CLASS="PARAMETER"
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125 ><I
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126 >overlay</I
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127 ></TT
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128 > to the surface specified when it was <A
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129 HREF="sdlcreateyuvoverlay.html"
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130 >created</A
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131 >. The <A
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132 HREF="sdlrect.html"
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133 ><SPAN
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134 CLASS="STRUCTNAME"
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135 >SDL_Rect</SPAN
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136 ></A
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137 > structure, <TT
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138 CLASS="PARAMETER"
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139 ><I
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140 >dstrect</I
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141 ></TT
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142 >, specifies the position and size of the destination. If the <TT
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143 CLASS="PARAMETER"
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144 ><I
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145 >dstrect</I
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146 ></TT
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147 > is a larger or smaller than the overlay then the overlay will be scaled, this is optimized for 2x scaling.</P
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148 ></DIV
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149 ><DIV
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150 CLASS="REFSECT1"
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151 ><A
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152 NAME="AEN2927"
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153 ></A
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154 ><H2
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155 >Return Values</H2
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156 ><P
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157 >Returns 0 on success</P
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158 ></DIV
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159 ><DIV
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160 CLASS="REFSECT1"
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161 ><A
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162 NAME="AEN2930"
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163 ></A
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164 ><H2
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165 >See Also</H2
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166 ><P
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167 ><A
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168 HREF="sdloverlay.html"
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169 ><SPAN
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170 CLASS="STRUCTNAME"
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171 >SDL_Overlay</SPAN
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172 ></A
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173 >,
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174 <A
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175 HREF="sdlcreateyuvoverlay.html"
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176 ><TT
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177 CLASS="FUNCTION"
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178 >SDL_CreateYUVOverlay</TT
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179 ></A
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180 ></P
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181 ></DIV
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182 ><DIV
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183 CLASS="NAVFOOTER"
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184 ><HR
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185 ALIGN="LEFT"
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186 WIDTH="100%"><TABLE
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187 SUMMARY="Footer navigation table"
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188 WIDTH="100%"
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189 BORDER="0"
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190 CELLPADDING="0"
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191 CELLSPACING="0"
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192 ><TR
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193 ><TD
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194 WIDTH="33%"
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195 ALIGN="left"
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196 VALIGN="top"
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197 ><A
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198 HREF="sdlunlockyuvoverlay.html"
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199 ACCESSKEY="P"
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200 >Prev</A
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201 ></TD
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202 ><TD
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203 WIDTH="34%"
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204 ALIGN="center"
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205 VALIGN="top"
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206 ><A
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207 HREF="index.html"
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208 ACCESSKEY="H"
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209 >Home</A
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210 ></TD
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211 ><TD
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212 WIDTH="33%"
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213 ALIGN="right"
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214 VALIGN="top"
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215 ><A
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216 HREF="sdlfreeyuvoverlay.html"
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217 ACCESSKEY="N"
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218 >Next</A
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219 ></TD
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220 ></TR
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221 ><TR
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222 ><TD
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223 WIDTH="33%"
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224 ALIGN="left"
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225 VALIGN="top"
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226 >SDL_UnlockYUVOverlay</TD
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227 ><TD
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228 WIDTH="34%"
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229 ALIGN="center"
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230 VALIGN="top"
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231 ><A
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232 HREF="video.html"
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233 ACCESSKEY="U"
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234 >Up</A
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235 ></TD
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236 ><TD
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237 WIDTH="33%"
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238 ALIGN="right"
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239 VALIGN="top"
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240 >SDL_FreeYUVOverlay</TD
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241 ></TR
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242 ></TABLE
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243 ></DIV
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244 ></BODY
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245 ></HTML
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246 >