Mercurial > sdl-ios-xcode
annotate docs/html/sdlgeterror.html @ 1240:3b8a43c428bb
From Bug #36:
There are a couple of issues with the selection of Altivec alpha-blitting
routines in CalculateAlphaBlit() in src/video/SDL_Blit_A.c.
1) There's no check for the presence of Altivec when checking if the
Blit32to565PixelAlphaAltivec() routine can be selected.
2) Altivec cannot be used in video memory, and there's no check if the
destination surface is a hardware surface. (Alpha-blitting to a hardware
surface with GPU support is a bad idea, but somebody's bound to do it anyway.)
Patch to fix these attached.
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Sun, 08 Jan 2006 21:18:15 +0000 |
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40 >SDL Library Documentation</TH |
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48 HREF="sdlwasinit.html" |
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50 >Prev</A |
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56 ></TD |
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72 ><A |
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73 NAME="SDLGETERROR" |
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74 ></A |
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75 >SDL_GetError</H1 |
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82 >Name</H2 |
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83 >SDL_GetError -- Get SDL error string</DIV |
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117 ><A |
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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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124 CLASS="FUNCTION" |
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125 >SDL_GetError</TT |
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126 > returns a NULL terminated string containing information about the last internal SDL error.</P |
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127 ></DIV |
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130 ><A |
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131 NAME="AEN667" |
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132 ></A |
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133 ><H2 |
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134 >Return Value</H2 |
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135 ><P |
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136 ><TT |
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137 CLASS="FUNCTION" |
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138 >SDL_GetError</TT |
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139 > returns a string containing the last error.</P |
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140 ></DIV |
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141 ><DIV |
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142 CLASS="NAVFOOTER" |
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143 ><HR |
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144 ALIGN="LEFT" |
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145 WIDTH="100%"><TABLE |
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146 SUMMARY="Footer navigation table" |
181
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147 WIDTH="100%" |
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148 BORDER="0" |
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149 CELLPADDING="0" |
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150 CELLSPACING="0" |
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151 ><TR |
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152 ><TD |
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153 WIDTH="33%" |
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154 ALIGN="left" |
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155 VALIGN="top" |
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156 ><A |
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157 HREF="sdlwasinit.html" |
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158 ACCESSKEY="P" |
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159 >Prev</A |
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160 ></TD |
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161 ><TD |
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162 WIDTH="34%" |
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163 ALIGN="center" |
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164 VALIGN="top" |
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165 ><A |
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166 HREF="index.html" |
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167 ACCESSKEY="H" |
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168 >Home</A |
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169 ></TD |
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170 ><TD |
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171 WIDTH="33%" |
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172 ALIGN="right" |
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173 VALIGN="top" |
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174 ><A |
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175 HREF="sdlenvvars.html" |
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176 ACCESSKEY="N" |
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177 >Next</A |
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178 ></TD |
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179 ></TR |
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180 ><TR |
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181 ><TD |
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182 WIDTH="33%" |
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183 ALIGN="left" |
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184 VALIGN="top" |
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185 >SDL_WasInit</TD |
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186 ><TD |
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187 WIDTH="34%" |
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188 ALIGN="center" |
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189 VALIGN="top" |
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190 ><A |
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191 HREF="general.html" |
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192 ACCESSKEY="U" |
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193 >Up</A |
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194 ></TD |
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195 ><TD |
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196 WIDTH="33%" |
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197 ALIGN="right" |
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198 VALIGN="top" |
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199 >SDL_envvars</TD |
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200 ></TR |
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201 ></TABLE |
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202 ></DIV |
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203 ></BODY |
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204 ></HTML |
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205 > |