Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_WasInit.3 @ 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 | e5bc29de3f0a |
children | 546f7c1eb755 |
rev | line source |
---|---|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_WasInit" "3" "Tue 11 Sep 2001, 23:00" "SDL" "SDL API Reference" |
0 | 2 .SH "NAME" |
3 SDL_WasInit\- Check which subsystems are initialized | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBUint32 \fBSDL_WasInit\fP\fR(\fBUint32 flags\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
11 \fBSDL_WasInit\fP allows you to see which SDL subsytems have been \fIinitialized\fR\&. \fBflags\fR is a bitwise OR\&'d combination of the subsystems you wish to check (see \fI\fBSDL_Init\fP\fR for a list of subsystem flags)\&. | |
12 .SH "RETURN VALUE" | |
13 .PP | |
14 \fBSDL_WasInit\fP returns a bitwised OR\&'d combination of the initialized subsystems\&. | |
15 .SH "EXAMPLES" | |
16 .PP | |
17 .nf | |
18 \f(CW | |
19 /* Here are several ways you can use SDL_WasInit() */ | |
20 | |
21 /* Get init data on all the subsystems */ | |
22 Uint32 subsystem_init; | |
23 | |
24 subsystem_init=SDL_WasInit(SDL_INIT_EVERYTHING); | |
25 | |
26 if(subsystem_init&SDL_INIT_VIDEO) | |
27 printf("Video is initialized\&. | |
28 "); | |
29 else | |
30 printf("Video is not initialized\&. | |
31 "); | |
32 | |
33 | |
34 | |
35 /* Just check for one specfic subsystem */ | |
36 | |
37 if(SDL_WasInit(SDL_INIT_VIDEO)!=0) | |
38 printf("Video is initialized\&. | |
39 "); | |
40 else | |
41 printf("Video is not initialized\&. | |
42 "); | |
43 | |
44 | |
45 | |
46 | |
47 /* Check for two subsystems */ | |
48 | |
49 Uint32 subsystem_mask=SDL_INIT_VIDEO|SDL_INIT_AUDIO; | |
50 | |
51 if(SDL_WasInit(subsystem_mask)==subsystem_mask) | |
52 printf("Video and Audio initialized\&. | |
53 "); | |
54 else | |
55 printf("Video and Audio not initialized\&. | |
56 "); | |
57 \fR | |
58 .fi | |
59 .PP | |
60 .SH "SEE ALSO" | |
61 .PP | |
62 \fI\fBSDL_Init\fP\fR, \fI\fBSDL_Subsystem\fP\fR | |
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
63 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:00 |