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annotate docs/html/sdlupdaterects.html @ 2329:c1a390f6a819
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| author | Bob Pendleton <bob@pendleton.com> |
|---|---|
| date | Fri, 14 Mar 2008 20:43:44 +0000 |
| parents | 355632dca928 |
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| rev | line source |
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| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_UpdateRects</TITLE | |
| 5 ><META | |
| 6 NAME="GENERATOR" | |
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7 CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ |
| 0 | 8 "><LINK |
| 9 REL="HOME" | |
| 10 TITLE="SDL Library Documentation" | |
| 11 HREF="index.html"><LINK | |
| 12 REL="UP" | |
| 13 TITLE="Video" | |
| 14 HREF="video.html"><LINK | |
| 15 REL="PREVIOUS" | |
| 16 TITLE="SDL_UpdateRect" | |
| 17 HREF="sdlupdaterect.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_Flip" | |
| 20 HREF="sdlflip.html"></HEAD | |
| 21 ><BODY | |
| 22 CLASS="REFENTRY" | |
| 23 BGCOLOR="#FFF8DC" | |
| 24 TEXT="#000000" | |
| 25 LINK="#0000ee" | |
| 26 VLINK="#551a8b" | |
| 27 ALINK="#ff0000" | |
| 28 ><DIV | |
| 29 CLASS="NAVHEADER" | |
| 30 ><TABLE | |
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31 SUMMARY="Header navigation table" |
| 0 | 32 WIDTH="100%" |
| 33 BORDER="0" | |
| 34 CELLPADDING="0" | |
| 35 CELLSPACING="0" | |
| 36 ><TR | |
| 37 ><TH | |
| 38 COLSPAN="3" | |
| 39 ALIGN="center" | |
| 40 >SDL Library Documentation</TH | |
| 41 ></TR | |
| 42 ><TR | |
| 43 ><TD | |
| 44 WIDTH="10%" | |
| 45 ALIGN="left" | |
| 46 VALIGN="bottom" | |
| 47 ><A | |
| 48 HREF="sdlupdaterect.html" | |
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49 ACCESSKEY="P" |
| 0 | 50 >Prev</A |
| 51 ></TD | |
| 52 ><TD | |
| 53 WIDTH="80%" | |
| 54 ALIGN="center" | |
| 55 VALIGN="bottom" | |
| 56 ></TD | |
| 57 ><TD | |
| 58 WIDTH="10%" | |
| 59 ALIGN="right" | |
| 60 VALIGN="bottom" | |
| 61 ><A | |
| 62 HREF="sdlflip.html" | |
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63 ACCESSKEY="N" |
| 0 | 64 >Next</A |
| 65 ></TD | |
| 66 ></TR | |
| 67 ></TABLE | |
| 68 ><HR | |
| 69 ALIGN="LEFT" | |
| 70 WIDTH="100%"></DIV | |
| 71 ><H1 | |
| 72 ><A | |
| 73 NAME="SDLUPDATERECTS" | |
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74 ></A |
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75 >SDL_UpdateRects</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN1392" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_UpdateRects -- Makes sure the given list of rectangles is updated on the given screen.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN1395" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN1396" |
| 0 | 95 ></A |
| 96 ><P | |
| 97 ></P | |
| 98 ><PRE | |
| 99 CLASS="FUNCSYNOPSISINFO" | |
| 100 >#include "SDL.h"</PRE | |
| 101 ><P | |
| 102 ><CODE | |
| 103 ><CODE | |
| 104 CLASS="FUNCDEF" | |
| 105 >void <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_UpdateRects</B | |
| 108 ></CODE | |
| 109 >(SDL_Surface *screen, int numrects, SDL_Rect *rects);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
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118 NAME="AEN1402" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
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123 >Makes sure the given list of rectangles is updated on the given screen. |
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124 The rectangles must all be confined within the screen boundaries (no |
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125 clipping is done).</P |
| 0 | 126 ><P |
| 127 >This function should not be called while <TT | |
| 128 CLASS="PARAMETER" | |
| 129 ><I | |
| 130 >screen</I | |
| 131 ></TT | |
| 132 > is | |
| 133 <A | |
| 134 HREF="sdllocksurface.html" | |
| 135 >locked</A | |
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136 >.</P |
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137 ><DIV |
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138 CLASS="NOTE" |
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139 ><BLOCKQUOTE |
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140 CLASS="NOTE" |
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141 ><P |
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142 ><B |
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143 >Note: </B |
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144 >It is adviced to call this function only once per frame, since each |
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145 call has some processing overhead. This is no restriction since you |
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146 can pass any number of rectangles each time.</P |
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147 ><P |
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148 >The rectangles are not automatically merged or checked for overlap. In |
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149 general, the programmer can use his knowledge about his particular |
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150 rectangles to merge them in an efficient way, to avoid overdraw.</P |
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151 ></BLOCKQUOTE |
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152 ></DIV |
| 0 | 153 ></DIV |
| 154 ><DIV | |
| 155 CLASS="REFSECT1" | |
| 156 ><A | |
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157 NAME="AEN1411" |
| 0 | 158 ></A |
| 159 ><H2 | |
| 160 >See Also</H2 | |
| 161 ><P | |
| 162 ><A | |
| 163 HREF="sdlupdaterect.html" | |
| 164 ><TT | |
| 165 CLASS="FUNCTION" | |
| 166 >SDL_UpdateRect</TT | |
| 167 ></A | |
| 168 >, | |
| 169 <A | |
| 170 HREF="sdlrect.html" | |
| 171 ><SPAN | |
| 172 CLASS="STRUCTNAME" | |
| 173 >SDL_Rect</SPAN | |
| 174 ></A | |
| 175 >, | |
| 176 <A | |
| 177 HREF="sdlsurface.html" | |
| 178 ><SPAN | |
| 179 CLASS="STRUCTNAME" | |
| 180 >SDL_Surface</SPAN | |
| 181 ></A | |
| 182 >, | |
| 183 <A | |
| 184 HREF="sdllocksurface.html" | |
| 185 ><TT | |
| 186 CLASS="FUNCTION" | |
| 187 >SDL_LockSurface</TT | |
| 188 ></A | |
| 189 ></P | |
| 190 ></DIV | |
| 191 ><DIV | |
| 192 CLASS="NAVFOOTER" | |
| 193 ><HR | |
| 194 ALIGN="LEFT" | |
| 195 WIDTH="100%"><TABLE | |
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196 SUMMARY="Footer navigation table" |
| 0 | 197 WIDTH="100%" |
| 198 BORDER="0" | |
| 199 CELLPADDING="0" | |
| 200 CELLSPACING="0" | |
| 201 ><TR | |
| 202 ><TD | |
| 203 WIDTH="33%" | |
| 204 ALIGN="left" | |
| 205 VALIGN="top" | |
| 206 ><A | |
| 207 HREF="sdlupdaterect.html" | |
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208 ACCESSKEY="P" |
| 0 | 209 >Prev</A |
| 210 ></TD | |
| 211 ><TD | |
| 212 WIDTH="34%" | |
| 213 ALIGN="center" | |
| 214 VALIGN="top" | |
| 215 ><A | |
| 216 HREF="index.html" | |
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217 ACCESSKEY="H" |
| 0 | 218 >Home</A |
| 219 ></TD | |
| 220 ><TD | |
| 221 WIDTH="33%" | |
| 222 ALIGN="right" | |
| 223 VALIGN="top" | |
| 224 ><A | |
| 225 HREF="sdlflip.html" | |
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226 ACCESSKEY="N" |
| 0 | 227 >Next</A |
| 228 ></TD | |
| 229 ></TR | |
| 230 ><TR | |
| 231 ><TD | |
| 232 WIDTH="33%" | |
| 233 ALIGN="left" | |
| 234 VALIGN="top" | |
| 235 >SDL_UpdateRect</TD | |
| 236 ><TD | |
| 237 WIDTH="34%" | |
| 238 ALIGN="center" | |
| 239 VALIGN="top" | |
| 240 ><A | |
| 241 HREF="video.html" | |
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242 ACCESSKEY="U" |
| 0 | 243 >Up</A |
| 244 ></TD | |
| 245 ><TD | |
| 246 WIDTH="33%" | |
| 247 ALIGN="right" | |
| 248 VALIGN="top" | |
| 249 >SDL_Flip</TD | |
| 250 ></TR | |
| 251 ></TABLE | |
| 252 ></DIV | |
| 253 ></BODY | |
| 254 ></HTML | |
| 255 > |