Mercurial > sdl-ios-xcode
annotate docs/html/sdlvideomodeok.html @ 1643:51038e80ae59
More general fix for bug #189
The clipping is done at a higher level, and the low level functions are
passed clipped rectangles. Drivers which don't support source clipping
have not been changed, so the image will be squished instead of clipped,
but at least they will no longer crash when the destination rect was out
of bounds.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 17 Apr 2006 06:47:23 +0000 |
| parents | 355632dca928 |
| children |
| rev | line source |
|---|---|
| 0 | 1 <HTML |
| 2 ><HEAD | |
| 3 ><TITLE | |
| 4 >SDL_VideoModeOK</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_ListModes" | |
| 17 HREF="sdllistmodes.html"><LINK | |
| 18 REL="NEXT" | |
| 19 TITLE="SDL_SetVideoMode" | |
| 20 HREF="sdlsetvideomode.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="sdllistmodes.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="sdlsetvideomode.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="SDLVIDEOMODEOK" | |
|
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74 ></A |
|
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75 >SDL_VideoModeOK</H1 |
| 0 | 76 ><DIV |
| 77 CLASS="REFNAMEDIV" | |
| 78 ><A | |
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79 NAME="AEN1202" |
| 0 | 80 ></A |
| 81 ><H2 | |
| 82 >Name</H2 | |
| 83 >SDL_VideoModeOK -- Check to see if a particular video mode is supported.</DIV | |
| 84 ><DIV | |
| 85 CLASS="REFSYNOPSISDIV" | |
| 86 ><A | |
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87 NAME="AEN1205" |
| 0 | 88 ></A |
| 89 ><H2 | |
| 90 >Synopsis</H2 | |
| 91 ><DIV | |
| 92 CLASS="FUNCSYNOPSIS" | |
| 93 ><A | |
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94 NAME="AEN1206" |
| 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 >int <B | |
| 106 CLASS="FSFUNC" | |
| 107 >SDL_VideoModeOK</B | |
| 108 ></CODE | |
| 109 >(int width, int height, int bpp, Uint32 flags);</CODE | |
| 110 ></P | |
| 111 ><P | |
| 112 ></P | |
| 113 ></DIV | |
| 114 ></DIV | |
| 115 ><DIV | |
| 116 CLASS="REFSECT1" | |
| 117 ><A | |
|
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118 NAME="AEN1212" |
| 0 | 119 ></A |
| 120 ><H2 | |
| 121 >Description</H2 | |
| 122 ><P | |
| 123 ><TT | |
| 124 CLASS="FUNCTION" | |
| 125 >SDL_VideoModeOK</TT | |
| 126 > returns <SPAN | |
| 127 CLASS="RETURNVALUE" | |
| 128 >0</SPAN | |
| 129 > | |
| 130 if the requested mode is not supported under any bit depth, or returns the | |
| 131 bits-per-pixel of the closest available mode with the given width, height and requested <A | |
| 132 HREF="sdlsurface.html" | |
| 133 >surface</A | |
| 134 > flags (see <A | |
| 135 HREF="sdlsetvideomode.html" | |
| 136 ><TT | |
| 137 CLASS="FUNCTION" | |
| 138 >SDL_SetVideoMode</TT | |
| 139 ></A | |
| 140 >).</P | |
| 141 ><P | |
| 142 >The bits-per-pixel value returned is only a suggested mode. You can usually request and bpp you want when <A | |
| 143 HREF="sdlsetvideomode.html" | |
| 144 >setting</A | |
| 145 > the video mode and SDL will emulate that color depth with a shadow video surface.</P | |
| 146 ><P | |
| 147 >The arguments to <TT | |
| 148 CLASS="FUNCTION" | |
| 149 >SDL_VideoModeOK</TT | |
| 150 > are the same ones you | |
| 151 would pass to <A | |
| 152 HREF="sdlsetvideomode.html" | |
| 153 >SDL_SetVideoMode</A | |
| 154 ></P | |
| 155 ></DIV | |
| 156 ><DIV | |
| 157 CLASS="REFSECT1" | |
| 158 ><A | |
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159 NAME="AEN1225" |
| 0 | 160 ></A |
| 161 ><H2 | |
| 162 >Example</H2 | |
| 163 ><PRE | |
| 164 CLASS="PROGRAMLISTING" | |
| 165 >SDL_Surface *screen; | |
| 166 Uint32 bpp; | |
| 167 . | |
| 168 . | |
| 169 . | |
| 170 printf("Checking mode 640x480@16bpp.\n"); | |
| 171 bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE); | |
| 172 | |
| 173 if(!bpp){ | |
| 174 printf("Mode not available.\n"); | |
| 175 exit(-1); | |
| 176 } | |
| 177 | |
| 178 printf("SDL Recommends 640x480@%dbpp.\n", bpp); | |
| 179 screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE); | |
| 180 . | |
| 181 .</PRE | |
| 182 ></DIV | |
| 183 ><DIV | |
| 184 CLASS="REFSECT1" | |
| 185 ><A | |
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parents:
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186 NAME="AEN1228" |
| 0 | 187 ></A |
| 188 ><H2 | |
| 189 >See Also</H2 | |
| 190 ><P | |
| 191 ><A | |
| 192 HREF="sdlsetvideomode.html" | |
| 193 ><TT | |
| 194 CLASS="FUNCTION" | |
| 195 >SDL_SetVideoMode</TT | |
| 196 ></A | |
| 197 >, | |
| 198 <A | |
| 199 HREF="sdlgetvideoinfo.html" | |
| 200 ><TT | |
| 201 CLASS="FUNCTION" | |
| 202 >SDL_GetVideoInfo</TT | |
| 203 ></A | |
| 204 ></P | |
| 205 ></DIV | |
| 206 ><DIV | |
| 207 CLASS="NAVFOOTER" | |
| 208 ><HR | |
| 209 ALIGN="LEFT" | |
| 210 WIDTH="100%"><TABLE | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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211 SUMMARY="Footer navigation table" |
| 0 | 212 WIDTH="100%" |
| 213 BORDER="0" | |
| 214 CELLPADDING="0" | |
| 215 CELLSPACING="0" | |
| 216 ><TR | |
| 217 ><TD | |
| 218 WIDTH="33%" | |
| 219 ALIGN="left" | |
| 220 VALIGN="top" | |
| 221 ><A | |
| 222 HREF="sdllistmodes.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
223 ACCESSKEY="P" |
| 0 | 224 >Prev</A |
| 225 ></TD | |
| 226 ><TD | |
| 227 WIDTH="34%" | |
| 228 ALIGN="center" | |
| 229 VALIGN="top" | |
| 230 ><A | |
| 231 HREF="index.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
232 ACCESSKEY="H" |
| 0 | 233 >Home</A |
| 234 ></TD | |
| 235 ><TD | |
| 236 WIDTH="33%" | |
| 237 ALIGN="right" | |
| 238 VALIGN="top" | |
| 239 ><A | |
| 240 HREF="sdlsetvideomode.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
241 ACCESSKEY="N" |
| 0 | 242 >Next</A |
| 243 ></TD | |
| 244 ></TR | |
| 245 ><TR | |
| 246 ><TD | |
| 247 WIDTH="33%" | |
| 248 ALIGN="left" | |
| 249 VALIGN="top" | |
| 250 >SDL_ListModes</TD | |
| 251 ><TD | |
| 252 WIDTH="34%" | |
| 253 ALIGN="center" | |
| 254 VALIGN="top" | |
| 255 ><A | |
| 256 HREF="video.html" | |
|
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
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257 ACCESSKEY="U" |
| 0 | 258 >Up</A |
| 259 ></TD | |
| 260 ><TD | |
| 261 WIDTH="33%" | |
| 262 ALIGN="right" | |
| 263 VALIGN="top" | |
| 264 >SDL_SetVideoMode</TD | |
| 265 ></TR | |
| 266 ></TABLE | |
| 267 ></DIV | |
| 268 ></BODY | |
| 269 ></HTML | |
| 270 > |