Mercurial > sdl-ios-xcode
annotate include/SDL.h @ 1192:54aa9aa32327
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Fri, 18 Nov 2005 23:39:02 +0100
Subject: [SDL] Mouse position bugs on Mac OS X
The attached patch fixes a few bugs in SDL related to the mouse position
in windowed mode on Mac OS X, reproduced using the attached minimal test
program - at least here on 10.3.9, with SDL CVS from today. Could anyone
test whether the bugs exist and are fixed by the patch on 10.2 and 10.4?
1. When using OpenGL, the vertical mouse positions obtained through
events or SDL_GetMouseState() are off by one.
2. When using OpenGL, SDL_WarpMouse() inverts the y coordinate.
3. Clicks on the topmost pixel row of the window are not recognized.
1 and 2 do not occur in non-OpenGL mode, while 3 does. All three only
occur in windowed mode, not in fullscreen.
The cause for 1 and 3 is that in Cocoa, "the location of the mouse"
seems to be defined as "the location of the top left corner of the mouse
pointer's hot pixel" (this is not documented, it's just what I found out
here), which together with the fact that Cocoa's usual y coordinates
start at the bottom and increase upwards means that the y coordinate of
the mouse runs from 1 to h, not from 0 to h-1, in a window of height h.
If it does work on 10.2 and 10.4 (I'll try to test it as soon as I can,
but at the moment all I have at hand is 10.3.9), can this be applied to
the CVS?
-Christian
To: sdl@libsdl.org
From: Christian Walther <cwalther@gmx.ch>
Date: Mon, 28 Nov 2005 10:41:51 +0100
Subject: [SDL] Re: Mouse position bugs on Mac OS X
I wrote:
> I'll try to test it as soon as I can, but at the moment all I have at hand is 10.3.9
So, here are the results of my tests (with patched and unpatched
frameworks compiled with Xcode 1.5 (gcc 3.3) on 10.3.9):
On 10.1.5, my test program doesn't run because of "Undefined symbols:
SDL undefined reference to _CGMainDisplayID expected to be defined in
Carbon". I guess not supporting 10.1 was a deliberate decision then and
that's OK with me.
On 10.2.8, 10.3.9, and 10.4.0, the bugs exist as described in my
original post and are fixed by my patch. That is, there is no difference
between pre/post 10.3 and the patched version works correctly in all
combinations of GL/non-GL and windowed/fullscreen.
I therefore recommend the patch for inclusion.
-Christian
author | Ryan C. Gordon <icculus@icculus.org> |
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date | Mon, 28 Nov 2005 13:58:26 +0000 |
parents | f31856cf29ae |
children | c9b51268668f |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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Updated copyright information for 2004 (Happy New Year!)
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3 Copyright (C) 1997-2004 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
9 | |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
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Updated the headers with the correct e-mail address
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 /* Main include header for the SDL library */ | |
29 | |
30 #ifndef _SDL_H | |
31 #define _SDL_H | |
32 | |
33 #include "SDL_main.h" | |
34 #include "SDL_types.h" | |
35 #include "SDL_getenv.h" | |
36 #include "SDL_error.h" | |
37 #include "SDL_rwops.h" | |
38 #include "SDL_timer.h" | |
39 #include "SDL_audio.h" | |
40 #include "SDL_cdrom.h" | |
41 #include "SDL_joystick.h" | |
42 #include "SDL_events.h" | |
43 #include "SDL_video.h" | |
44 #include "SDL_byteorder.h" | |
45 #include "SDL_version.h" | |
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Added #include "SDL_loadso.h" to SDL.h.
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46 #include "SDL_loadso.h" |
0 | 47 |
48 #include "begin_code.h" | |
49 /* Set up for C function definitions, even when using C++ */ | |
50 #ifdef __cplusplus | |
51 extern "C" { | |
52 #endif | |
53 | |
54 /* As of version 0.5, SDL is loaded dynamically into the application */ | |
55 | |
56 /* These are the flags which may be passed to SDL_Init() -- you should | |
57 specify the subsystems which you will be using in your application. | |
58 */ | |
59 #define SDL_INIT_TIMER 0x00000001 | |
60 #define SDL_INIT_AUDIO 0x00000010 | |
61 #define SDL_INIT_VIDEO 0x00000020 | |
62 #define SDL_INIT_CDROM 0x00000100 | |
63 #define SDL_INIT_JOYSTICK 0x00000200 | |
64 #define SDL_INIT_NOPARACHUTE 0x00100000 /* Don't catch fatal signals */ | |
65 #define SDL_INIT_EVENTTHREAD 0x01000000 /* Not supported on all OS's */ | |
66 #define SDL_INIT_EVERYTHING 0x0000FFFF | |
67 | |
68 /* This function loads the SDL dynamically linked library and initializes | |
69 * the subsystems specified by 'flags' (and those satisfying dependencies) | |
70 * Unless the SDL_INIT_NOPARACHUTE flag is set, it will install cleanup | |
71 * signal handlers for some commonly ignored fatal signals (like SIGSEGV) | |
72 */ | |
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73 extern DECLSPEC int SDLCALL SDL_Init(Uint32 flags); |
0 | 74 |
75 /* This function initializes specific SDL subsystems */ | |
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76 extern DECLSPEC int SDLCALL SDL_InitSubSystem(Uint32 flags); |
0 | 77 |
78 /* This function cleans up specific SDL subsystems */ | |
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79 extern DECLSPEC void SDLCALL SDL_QuitSubSystem(Uint32 flags); |
0 | 80 |
81 /* This function returns mask of the specified subsystems which have | |
82 been initialized. | |
83 If 'flags' is 0, it returns a mask of all initialized subsystems. | |
84 */ | |
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85 extern DECLSPEC Uint32 SDLCALL SDL_WasInit(Uint32 flags); |
0 | 86 |
87 /* This function cleans up all initialized subsystems and unloads the | |
88 * dynamically linked library. You should call it upon all exit conditions. | |
89 */ | |
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90 extern DECLSPEC void SDLCALL SDL_Quit(void); |
0 | 91 |
92 /* Ends C function definitions when using C++ */ | |
93 #ifdef __cplusplus | |
94 } | |
95 #endif | |
96 #include "close_code.h" | |
97 | |
98 #endif /* _SDL_H */ |