Mercurial > sdl-ios-xcode
annotate include/SDL_syswm.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 | 609c060fd2a2 |
children | c9b51268668f |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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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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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #ifdef SAVE_RCSID | |
24 static char rcsid = | |
25 "@(#) $Id$"; | |
26 #endif | |
27 | |
28 /* Include file for SDL custom system window manager hooks */ | |
29 | |
30 #ifndef _SDL_syswm_h | |
31 #define _SDL_syswm_h | |
32 | |
33 #include "SDL_version.h" | |
34 | |
35 #include "begin_code.h" | |
36 /* Set up for C function definitions, even when using C++ */ | |
37 #ifdef __cplusplus | |
38 extern "C" { | |
39 #endif | |
40 | |
41 /* Your application has access to a special type of event 'SDL_SYSWMEVENT', | |
42 which contains window-manager specific information and arrives whenever | |
43 an unhandled window event occurs. This event is ignored by default, but | |
44 you can enable it with SDL_EventState() | |
45 */ | |
46 #ifdef SDL_PROTOTYPES_ONLY | |
47 struct SDL_SysWMinfo; | |
48 typedef struct SDL_SysWMinfo SDL_SysWMinfo; | |
49 #else | |
50 | |
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51 #if defined(__APPLE__) && defined(__MACH__) |
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52 // conflicts with Quickdraw.h |
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53 #define Cursor X11Cursor |
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54 #endif |
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55 |
0 | 56 /* This is the structure for custom window manager events */ |
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57 #if (defined(unix) || defined(__unix__) || defined(_AIX) || \ |
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58 defined(__OpenBSD__) || defined(__NetBSD__) || \ |
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59 (defined(__APPLE__) && defined(__MACH__))) && \ |
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60 (!defined(DISABLE_X11) && !defined(__CYGWIN32__) && !defined(ENABLE_NANOX) && \ |
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61 !defined(__QNXNTO__)) |
0 | 62 /* AIX is unix, of course, but the native compiler CSet doesn't define unix */ |
63 #include <X11/Xlib.h> | |
64 #include <X11/Xatom.h> | |
65 | |
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66 #if defined(__APPLE__) && defined(__MACH__) |
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67 // matches the re-define above |
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68 #undef Cursor |
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69 #endif |
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70 |
0 | 71 /* These are the various supported subsystems under UNIX */ |
72 typedef enum { | |
73 SDL_SYSWM_X11 | |
74 } SDL_SYSWM_TYPE; | |
75 | |
76 /* The UNIX custom event structure */ | |
77 struct SDL_SysWMmsg { | |
78 SDL_version version; | |
79 SDL_SYSWM_TYPE subsystem; | |
80 union { | |
81 XEvent xevent; | |
82 } event; | |
83 }; | |
84 | |
85 /* The UNIX custom window manager information structure. | |
86 When this structure is returned, it holds information about which | |
87 low level system it is using, and will be one of SDL_SYSWM_TYPE. | |
88 */ | |
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89 typedef struct SDL_SysWMinfo { |
0 | 90 SDL_version version; |
91 SDL_SYSWM_TYPE subsystem; | |
92 union { | |
93 struct { | |
94 Display *display; /* The X11 display */ | |
95 Window window; /* The X11 display window */ | |
96 /* These locking functions should be called around | |
97 any X11 functions using the display variable. | |
98 They lock the event thread, so should not be | |
99 called around event functions or from event filters. | |
100 */ | |
101 void (*lock_func)(void); | |
102 void (*unlock_func)(void); | |
103 | |
104 /* Introduced in SDL 1.0.2 */ | |
105 Window fswindow; /* The X11 fullscreen window */ | |
106 Window wmwindow; /* The X11 managed input window */ | |
107 } x11; | |
108 } info; | |
109 } SDL_SysWMinfo; | |
110 | |
30
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111 #elif defined(ENABLE_NANOX) |
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112 #include <microwin/nano-X.h> |
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113 |
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114 /* The generic custom event structure */ |
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115 struct SDL_SysWMmsg { |
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116 SDL_version version; |
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117 int data; |
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118 }; |
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119 |
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120 /* The windows custom window manager information structure */ |
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121 typedef struct SDL_SysWMinfo { |
30
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122 SDL_version version ; |
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123 GR_WINDOW_ID window ; /* The display window */ |
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124 } SDL_SysWMinfo; |
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125 |
0 | 126 #elif defined(WIN32) |
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127 #define WIN32_LEAN_AND_MEAN |
0 | 128 #include <windows.h> |
129 | |
130 /* The windows custom event structure */ | |
131 struct SDL_SysWMmsg { | |
132 SDL_version version; | |
133 HWND hwnd; /* The window for the message */ | |
134 UINT msg; /* The type of message */ | |
135 WPARAM wParam; /* WORD message parameter */ | |
136 LPARAM lParam; /* LONG message parameter */ | |
137 }; | |
138 | |
139 /* The windows custom window manager information structure */ | |
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140 typedef struct SDL_SysWMinfo { |
0 | 141 SDL_version version; |
142 HWND window; /* The Win32 display window */ | |
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143 HGLRC hglrc; /* The OpenGL context, if any */ |
0 | 144 } SDL_SysWMinfo; |
145 | |
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146 #elif defined(__riscos__) |
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147 |
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148 /* RISC OS custom event structure */ |
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149 struct SDL_SysWMmsg { |
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150 SDL_version version; |
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151 int eventCode; /* The window for the message */ |
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152 int pollBlock[64]; |
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153 }; |
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154 |
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155 /* The RISC OS custom window manager information structure */ |
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156 typedef struct SDL_SysWMinfo { |
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157 SDL_version version; |
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158 int wimpVersion; /* Wimp version running under */ |
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159 int taskHandle; /* The RISC OS task handle */ |
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160 int window; /* The RISC OS display window */ |
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161 } SDL_SysWMinfo; |
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162 |
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163 #elif defined(__QNXNTO__) |
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164 #include <sys/neutrino.h> |
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165 #include <Ph.h> |
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166 |
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167 /* The QNX custom event structure */ |
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168 struct SDL_SysWMmsg { |
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169 SDL_version version; |
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170 int data; |
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171 }; |
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172 |
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173 /* The QNX custom window manager information structure */ |
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174 typedef struct SDL_SysWMinfo { |
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175 SDL_version version; |
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176 int data; |
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177 } SDL_SysWMinfo; |
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178 |
0 | 179 #else |
180 | |
181 /* The generic custom event structure */ | |
182 struct SDL_SysWMmsg { | |
183 SDL_version version; | |
184 int data; | |
185 }; | |
186 | |
187 /* The generic custom window manager information structure */ | |
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188 typedef struct SDL_SysWMinfo { |
0 | 189 SDL_version version; |
190 int data; | |
191 } SDL_SysWMinfo; | |
192 | |
193 #endif /* OS type */ | |
194 | |
195 #endif /* SDL_PROTOTYPES_ONLY */ | |
196 | |
197 /* Function prototypes */ | |
198 /* | |
199 * This function gives you custom hooks into the window manager information. | |
200 * It fills the structure pointed to by 'info' with custom information and | |
201 * returns 1 if the function is implemented. If it's not implemented, or | |
202 * the version member of the 'info' structure is invalid, it returns 0. | |
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203 * |
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204 * You typically use this function like this: |
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205 * SDL_SysWMInfo info; |
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206 * SDL_VERSION(&info.version); |
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207 * if ( SDL_GetWMInfo(&info) ) { ... } |
0 | 208 */ |
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209 extern DECLSPEC int SDLCALL SDL_GetWMInfo(SDL_SysWMinfo *info); |
0 | 210 |
211 | |
212 /* Ends C function definitions when using C++ */ | |
213 #ifdef __cplusplus | |
214 } | |
215 #endif | |
216 #include "close_code.h" | |
217 | |
218 #endif /* _SDL_syswm_h */ |