annotate docs/html/sdlglgetprocaddress.html @ 3168:6338b7f2d024

Hi, I have prepared a set of patches to readd WindowsCE support to SDL 1.3. I've created a new GAPI/Rawframebuffer and a DirectDraw renderer. Both renderers are work in progress and there are several unimplemented cases. (Notably RenderLine/RenderPoint/RenderFill/QueryTexturePixels/UpdateTexture and texture blending ) Nevertheless I am successfully using these renderers together with the SDL software renderer. (On most devices the SDL software renderer will be much faster as there are only badly optimized vendor drivers available) I send these patches now in this unpolished state because there seems to be some interest in win ce and someone has to start supporting SDL 1.3 Now on to the patches: wince_events_window_fixes.patch fixes some wince incompatibilities and adds fullscreen support via SHFullScreen. NOTE: This patch shouldn't have any side effects on Windows, but I have NOT tested it on Windows, so please double-check. This patch doesn't dependent on the following ones. wince_renderers_system.patch This patch does all necessary modifications to the SDL system. - it adds the renderers to the configure system - it adds the renderers to win32video SDL_ceddrawrender.c SDL_ceddrawrender.h SDL_gapirender_c.h SDL_gapirender.c SDL_gapirender.h these files add the new render drivers and should be placed in src/video/win32 Some notes to people who want to test this: - I have only compiled sdl with ming32ce, so the VisualC files are not up to date - As mingw32ce has no ddraw.h this file must be taken from the MS SDK and modified to work with gcc - I had to modify line 2611 in configure.in to EXTRA_LDFLAGS="$EXTRA_LDFLAGS -lcoredll -lcommctrl -lmmtimer -Wl,--image-base -Wl,0x10000" otherwise GetCPinfo wouldn't link. If someone knows whats causing this I'd be happy to hear about it. It would be great if these patches could make their way into SVN as this would make collaboration much much easier. I'm out of office for the next week and therefore will be unavailable via email. Regards Stefan
author Sam Lantinga <slouken@libsdl.org>
date Sun, 07 Jun 2009 02:44:46 +0000
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9 REL="HOME"
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10 TITLE="SDL Library Documentation"
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40 >SDL Library Documentation</TH
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61 ><A
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62 HREF="sdlglgetattribute.html"
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73 NAME="SDLGLGETPROCADDRESS"
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81 ><H2
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82 >Name</H2
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83 >SDL_GL_GetProcAddress&nbsp;--&nbsp;Get the address of a GL function</DIV
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84 ><DIV
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85 CLASS="REFSYNOPSISDIV"
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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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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 >void *<B
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106 CLASS="FSFUNC"
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107 >SDL_GL_GetProcAddress</B
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108 ></CODE
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109 >(const char* proc);</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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120 ><H2
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121 >Description</H2
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122 ><P
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123 >Returns the address of the GL function <TT
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124 CLASS="PARAMETER"
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125 ><I
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126 >proc</I
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127 ></TT
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128 >, or <SPAN
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129 CLASS="RETURNVALUE"
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130 >NULL</SPAN
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131 > if the function is not found. If the GL library is loaded at runtime, with <A
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132 HREF="sdlglloadlibrary.html"
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133 ><TT
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134 CLASS="FUNCTION"
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135 >SDL_GL_LoadLibrary</TT
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136 ></A
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137 >, then <SPAN
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138 CLASS="emphasis"
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141 >all</I
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142 ></SPAN
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143 > GL functions must be retrieved this way. Usually this is used to retrieve function pointers to OpenGL extensions.</P
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144 ></DIV
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147 ><A
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149 ></A
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150 ><H2
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151 >Example</H2
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152 ><PRE
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153 CLASS="PROGRAMLISTING"
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154 >typedef void (*GL_ActiveTextureARB_Func)(unsigned int);
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155 GL_ActiveTextureARB_Func glActiveTextureARB_ptr = 0;
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156 int has_multitexture=1;
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157 .
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158 .
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159 .
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160 /* Get function pointer */
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161 glActiveTextureARB_ptr=(GL_ActiveTextureARB_Func) SDL_GL_GetProcAddress("glActiveTextureARB");
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162
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163 /* Check for a valid function ptr */
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164 if(!glActiveTextureARB_ptr){
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165 fprintf(stderr, "Multitexture Extensions not present.\n");
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166 has_multitexture=0;
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167 }
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168 .
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169 .
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170 .
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171 .
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172 if(has_multitexture){
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173 glActiveTextureARB_ptr(GL_TEXTURE0_ARB);
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174 .
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175 .
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176 }
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177 else{
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178 .
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179 .
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180 }</PRE
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181 ></DIV
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182 ><DIV
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183 CLASS="REFSECT1"
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184 ><A
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185 NAME="AEN2699"
0
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186 ></A
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187 ><H2
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188 >See Also</H2
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189 ><P
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190 ><A
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191 HREF="sdlglloadlibrary.html"
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192 ><TT
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193 CLASS="FUNCTION"
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194 >SDL_GL_LoadLibrary</TT
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195 ></A
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196 ></P
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197 ></DIV
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198 ><DIV
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199 CLASS="NAVFOOTER"
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200 ><HR
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201 ALIGN="LEFT"
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202 WIDTH="100%"><TABLE
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203 SUMMARY="Footer navigation table"
0
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204 WIDTH="100%"
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205 BORDER="0"
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206 CELLPADDING="0"
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207 CELLSPACING="0"
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208 ><TR
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209 ><TD
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210 WIDTH="33%"
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211 ALIGN="left"
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212 VALIGN="top"
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213 ><A
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214 HREF="sdlglloadlibrary.html"
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215 ACCESSKEY="P"
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216 >Prev</A
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217 ></TD
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218 ><TD
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219 WIDTH="34%"
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220 ALIGN="center"
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221 VALIGN="top"
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222 ><A
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223 HREF="index.html"
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224 ACCESSKEY="H"
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225 >Home</A
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226 ></TD
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227 ><TD
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228 WIDTH="33%"
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229 ALIGN="right"
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230 VALIGN="top"
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231 ><A
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232 HREF="sdlglgetattribute.html"
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233 ACCESSKEY="N"
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234 >Next</A
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235 ></TD
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236 ></TR
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237 ><TR
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238 ><TD
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239 WIDTH="33%"
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240 ALIGN="left"
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241 VALIGN="top"
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242 >SDL_GL_LoadLibrary</TD
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243 ><TD
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244 WIDTH="34%"
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245 ALIGN="center"
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246 VALIGN="top"
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247 ><A
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248 HREF="video.html"
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249 ACCESSKEY="U"
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250 >Up</A
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251 ></TD
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252 ><TD
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253 WIDTH="33%"
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254 ALIGN="right"
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255 VALIGN="top"
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256 >SDL_GL_GetAttribute</TD
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257 ></TR
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258 ></TABLE
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259 ></DIV
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260 ></BODY
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261 ></HTML
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262 >