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annotate docs/html/sdlexposeevent.html @ 3335:b8d313de8a65

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Adam Strzelecki to SDL Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit. Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes). (1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs (2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space (3) Copy other planes for planar YUVs in UpdateTexture (4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code Waiting for comments, -- Adam Strzelecki | nanoant.com
author Sam Lantinga <slouken@libsdl.org>
date Sun, 04 Oct 2009 04:03:37 +0000
parents 720a96badf51
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1 <HTML
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2 ><HEAD
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3 ><TITLE
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4 >SDL_ExposeEvent</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="SDL Event Structures."
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20 HREF="sdlsyswmevent.html"></HEAD
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31 SUMMARY="Header navigation table"
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32 WIDTH="100%"
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40 >SDL Library Documentation</TH
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47 ><A
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49 ACCESSKEY="P"
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50 >Prev</A
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61 ><A
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62 HREF="sdlsyswmevent.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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67 ></TABLE
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68 ><HR
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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="SDLEXPOSEEVENT"
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74 ></A
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75 >SDL_ExposeEvent</H1
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76 ><DIV
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77 CLASS="REFNAMEDIV"
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78 ><A
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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_ExposeEvent&nbsp;--&nbsp;Quit requested event</DIV
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84 ><DIV
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86 ><A
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88 ></A
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89 ><H2
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90 >Structure Definition</H2
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91 ><PRE
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92 CLASS="PROGRAMLISTING"
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93 >typedef struct{
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94 Uint8 type
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95 } SDL_ExposeEvent;</PRE
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96 ></DIV
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99 ><A
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101 ></A
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102 ><H2
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103 >Structure Data</H2
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121 ><I
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122 >type</I
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123 ></TT
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128 ><TT
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129 CLASS="LITERAL"
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130 >SDL_VIDEOEXPOSE</TT
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141 ><A
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143 ></A
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144 ><H2
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145 >Description</H2
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148 CLASS="STRUCTNAME"
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149 >SDL_ExposeEvent</SPAN
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150 > is a member of the <A
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151 HREF="sdlevent.html"
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153 CLASS="STRUCTNAME"
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154 >SDL_Event</SPAN
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155 ></A
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156 > union and is used whan an event of type <TT
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157 CLASS="LITERAL"
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158 >SDL_VIDEOEXPOSE</TT
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159 > is reported.</P
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160 ><P
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161 >A VIDEOEXPOSE event is triggered when the screen has been modified
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162 outside of the application, usually by the window manager and needs to
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163 be redrawn.</P
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164 ></DIV
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165 ><DIV
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166 CLASS="REFSECT1"
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167 ><A
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168 NAME="AEN4527"
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169 ></A
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170 ><H2
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171 >See Also</H2
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172 ><P
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173 ><A
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174 HREF="sdlevent.html"
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175 ><SPAN
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176 CLASS="STRUCTNAME"
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177 >SDL_Event</SPAN
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178 ></A
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179 >,
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180 <A
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181 HREF="sdlseteventfilter.html"
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182 ><TT
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183 CLASS="FUNCTION"
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184 >SDL_SetEventFilter</TT
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185 ></A
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186 ></P
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187 ></DIV
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188 ><DIV
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189 CLASS="NAVFOOTER"
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190 ><HR
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191 ALIGN="LEFT"
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192 WIDTH="100%"><TABLE
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193 SUMMARY="Footer navigation table"
181
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194 WIDTH="100%"
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195 BORDER="0"
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196 CELLPADDING="0"
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197 CELLSPACING="0"
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198 ><TR
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199 ><TD
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200 WIDTH="33%"
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201 ALIGN="left"
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202 VALIGN="top"
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203 ><A
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204 HREF="sdlresizeevent.html"
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205 ACCESSKEY="P"
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206 >Prev</A
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207 ></TD
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208 ><TD
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209 WIDTH="34%"
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210 ALIGN="center"
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211 VALIGN="top"
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212 ><A
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213 HREF="index.html"
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214 ACCESSKEY="H"
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215 >Home</A
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216 ></TD
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217 ><TD
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218 WIDTH="33%"
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219 ALIGN="right"
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220 VALIGN="top"
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221 ><A
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222 HREF="sdlsyswmevent.html"
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223 ACCESSKEY="N"
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224 >Next</A
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225 ></TD
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226 ></TR
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227 ><TR
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228 ><TD
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229 WIDTH="33%"
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230 ALIGN="left"
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231 VALIGN="top"
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232 >SDL_ResizeEvent</TD
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233 ><TD
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234 WIDTH="34%"
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235 ALIGN="center"
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236 VALIGN="top"
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237 ><A
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238 HREF="eventstructures.html"
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239 ACCESSKEY="U"
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240 >Up</A
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241 ></TD
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242 ><TD
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243 WIDTH="33%"
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244 ALIGN="right"
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245 VALIGN="top"
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246 >SDL_SysWMEvent</TD
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247 ></TR
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248 ></TABLE
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249 ></DIV
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250 ></BODY
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251 ></HTML
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252 >