Mercurial > sdl-ios-xcode
annotate src/events/SDL_active.c @ 1614:6162b8d921ce
Date: Wed, 29 Mar 2006 17:26:55 +0200 CEST
From: "Fran���is Revol"
Subject: [SDL] BeOS port fix: PrintScreen key crashing
It seems the latest SDL crashes when someone hits the PrtScrn key in
ZETA (BeOS R6), somewhere it gets a negative value as key code (or a
big unsigned maybe ?), and uses it as an index in the keysym table...
I'll investigate the cause for the negative value, but it's always
better to check for bounds correctly when indexing a table. The
attached diff fixes it.
Fran���is Revol
--
Software Architect
yellowTAB GmbH
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Fri, 31 Mar 2006 06:16:20 +0000 |
| parents | d910939febfa |
| children | a1b03ba2fcd0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
1312
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Updated copyright information and removed rcs id lines (problematic in branch merges)
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|
3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
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parents:
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 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 | |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
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13 Lesser General Public License for more details. |
| 0 | 14 |
|
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
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15 You should have received a copy of the GNU Lesser General Public |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1123
diff
changeset
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16 License along with this library; if not, write to the Free Software |
|
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
|
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20 slouken@libsdl.org |
| 0 | 21 */ |
|
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Use consistent identifiers for the various platforms we support.
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 /* Application focus/iconification handling code for SDL */ | |
| 25 | |
| 26 #include "SDL_events.h" | |
| 27 #include "SDL_events_c.h" | |
| 28 | |
| 29 | |
| 30 /* These are static for our active event handling code */ | |
| 31 static Uint8 SDL_appstate = 0; | |
| 32 | |
| 33 /* Public functions */ | |
| 34 int SDL_AppActiveInit(void) | |
| 35 { | |
| 36 /* Start completely active */ | |
| 37 SDL_appstate = (SDL_APPACTIVE|SDL_APPINPUTFOCUS|SDL_APPMOUSEFOCUS); | |
| 38 | |
| 39 /* That's it! */ | |
| 40 return(0); | |
| 41 } | |
|
1123
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Date: Fri, 08 Jul 2005 22:43:48 +0200 (CEST)
Sam Lantinga <slouken@libsdl.org>
parents:
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42 void SDL_AppActiveQuit(void) |
|
28ac87a38c17
Date: Fri, 08 Jul 2005 22:43:48 +0200 (CEST)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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43 { |
|
28ac87a38c17
Date: Fri, 08 Jul 2005 22:43:48 +0200 (CEST)
Sam Lantinga <slouken@libsdl.org>
parents:
769
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changeset
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44 } |
| 0 | 45 |
| 46 Uint8 SDL_GetAppState(void) | |
| 47 { | |
| 48 return(SDL_appstate); | |
| 49 } | |
| 50 | |
| 51 /* This is global for SDL_eventloop.c */ | |
| 52 int SDL_PrivateAppActive(Uint8 gain, Uint8 state) | |
| 53 { | |
| 54 int posted; | |
| 55 Uint8 new_state; | |
| 56 | |
| 57 /* Modify the current state with the given mask */ | |
| 58 if ( gain ) { | |
| 59 new_state = (SDL_appstate | state); | |
| 60 } else { | |
| 61 new_state = (SDL_appstate & ~state); | |
| 62 } | |
| 63 | |
| 64 /* Drop events that don't change state */ | |
| 65 if ( new_state == SDL_appstate ) { | |
| 66 return(0); | |
| 67 } | |
| 68 | |
| 69 /* Update internal active state */ | |
| 70 SDL_appstate = new_state; | |
| 71 | |
| 72 /* Post the event, if desired */ | |
| 73 posted = 0; | |
| 74 if ( SDL_ProcessEvents[SDL_ACTIVEEVENT] == SDL_ENABLE ) { | |
| 75 SDL_Event event; | |
|
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Use SDL_ prefixed versions of C library functions.
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76 SDL_memset(&event, 0, sizeof(event)); |
| 0 | 77 event.type = SDL_ACTIVEEVENT; |
| 78 event.active.gain = gain; | |
| 79 event.active.state = state; | |
| 80 if ( (SDL_EventOK == NULL) || (*SDL_EventOK)(&event) ) { | |
| 81 posted = 1; | |
| 82 SDL_PushEvent(&event); | |
| 83 } | |
| 84 } | |
| 85 | |
| 86 /* If we lost keyboard focus, post key-up events */ | |
| 87 if ( (state & SDL_APPINPUTFOCUS) && !gain ) { | |
| 88 SDL_ResetKeyboard(); | |
| 89 } | |
| 90 return(posted); | |
| 91 } |