Mercurial > sdl-ios-xcode
annotate docs/html/sdlvideomodeok.html @ 983:7f08bd66f1ca
Date: Fri, 19 Nov 2004 06:23:53 -0800 (PST)
From: Eric Wing
Subject: OS X Mouse inversion problem fix (again)
Here's yet another patch for the OS X mouse inversion
problem. This should fix the problem once and for all.
I know I've said this before, but *This time for
sure!* :)
If you recall, my last patch broke the non-OpenGL
windowed code and caused the inversion to occur there
instead. Max submitted a patch that partially reverted
the changes back which included the os version hack
which is currently the most recent CVS.
Aaron Sullivan identified and reported to the mailing
list the other day, that the last partial regression
of the code broke OS X 10.2. Looking over the results,
I'm thinking that I was slightly more successful than
I thought at unifying the code. I think I was trying
to unify the code base for OpenGL and non-OpenGL
windowed modes for all versions of the OS. It looks
like I failed at at unifying the OpenGL and non-OpenGL
code, but I did succeed at unifying the OS versions.
Thus, we no longer need the hack for the OS version
checks. The partial regression still included an OS
check which is what broke things for < 10.3.
Attached is the patch for SDL_QuartzWM.m. It basically
is a half-line change that removes one of the two
checks that decides if the mouse coordinates need to
be inverted, i.e:
if (system_version >= 0x1030 &&
(SDL_VideoSurface->flags & SDL_OPENGL) )
becomes this:
if(SDL_VideoSurface->flags & SDL_OPENGL)
With Aaron's outstanding help, we have collectively
tested:
windowed OpenGL
windowed non-OpenGL
fullscreen OpenGL
fullscreen non-OpenGL
under OS X 10.2 (Jaguar), 10.3 (Panther), and 10.4
(Tiger).
We don't have access to 10.0 or 10.1, but since the
original problem didn't materialize until 10.3, I'm
hopeful that testing 10.2 is sufficient. And now that
the code is uniform, I'm also hoping we'll be safe
moving forward to deal with future revisions of the OS
with this issue.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Sun, 21 Nov 2004 00:57:47 +0000 |
parents | 355632dca928 |
children |
rev | line source |
---|---|
0 | 1 <HTML |
2 ><HEAD | |
3 ><TITLE | |
4 >SDL_VideoModeOK</TITLE | |
5 ><META | |
6 NAME="GENERATOR" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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 | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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" | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
74 ></A |
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
75 >SDL_VideoModeOK</H1 |
0 | 76 ><DIV |
77 CLASS="REFNAMEDIV" | |
78 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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 | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
87 NAME="AEN1205" |
0 | 88 ></A |
89 ><H2 | |
90 >Synopsis</H2 | |
91 ><DIV | |
92 CLASS="FUNCSYNOPSIS" | |
93 ><A | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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 | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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 | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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 | |
803
355632dca928
Updated SDL HTML documentation
Sam Lantinga <slouken@libsdl.org>
parents:
181
diff
changeset
|
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
|
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
|
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 > |