Mercurial > sdl-ios-xcode
annotate src/SDL_fatal.c @ 664:abfdc08eb289
Date: Sun, 3 Aug 2003 22:07:57 +0200
From: Max Horn
Subject: SDL OSX fullscreen FIX
the attached patch fixes the fullscreen problems on SDL/OSX. The cause
was that click events are bounded by winRect. Now, winRect is set to
the size of the video surface. But if you e.g. request a 640x420
surface, you might get a 640x480 "real" surface. Still,
SDL_VideoSurface->h will be set to 420! Thus, the upper 60 pixels in my
example received no mouse down events.
My fix simply disables this clipping when in full screen mode - after
all, all clicks then should be inside the screen surface. Higher SDL
functions ensure that the coordinates then are clipped to 640x420. It
works fine in all my tests here. I don't know if it's the right thing
to do in multi screen scenarios, though.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 04 Aug 2003 01:00:30 +0000 |
| parents | f6ffac90895c |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
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Updated copyright information for 2002
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 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 /* General fatal signal handling code for SDL */ | |
| 29 | |
| 30 #ifdef NO_SIGNAL_H | |
| 31 | |
| 32 /* No signals on this platform, nothing to do.. */ | |
| 33 | |
| 34 void SDL_InstallParachute(void) | |
| 35 { | |
| 36 return; | |
| 37 } | |
| 38 | |
| 39 void SDL_UninstallParachute(void) | |
| 40 { | |
| 41 return; | |
| 42 } | |
| 43 | |
| 44 #else | |
| 45 | |
| 46 #include <stdlib.h> | |
| 47 #include <stdio.h> | |
| 48 #include <signal.h> | |
| 49 #include <string.h> | |
| 50 | |
| 51 #include "SDL.h" | |
| 52 #include "SDL_fatal.h" | |
| 53 | |
|
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54 #ifdef __CYGWIN__ |
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55 #define DISABLE_STDIO |
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56 #endif |
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57 |
| 0 | 58 /* This installs some signal handlers for the more common fatal signals, |
| 59 so that if the programmer is lazy, the app doesn't die so horribly if | |
| 60 the program crashes. | |
| 61 */ | |
| 62 | |
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63 static void print_msg(const char *text) |
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64 { |
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65 #ifndef DISABLE_STDIO |
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66 fprintf(stderr, "%s", text); |
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67 #endif |
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68 } |
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69 |
| 0 | 70 static void SDL_Parachute(int sig) |
| 71 { | |
| 72 signal(sig, SIG_DFL); | |
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73 print_msg("Fatal signal: "); |
| 0 | 74 switch (sig) { |
| 75 case SIGSEGV: | |
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76 print_msg("Segmentation Fault"); |
| 0 | 77 break; |
| 78 #ifdef SIGBUS | |
| 79 #if SIGBUS != SIGSEGV | |
| 80 case SIGBUS: | |
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81 print_msg("Bus Error"); |
| 0 | 82 break; |
| 83 #endif | |
| 84 #endif /* SIGBUS */ | |
| 85 #ifdef SIGFPE | |
| 86 case SIGFPE: | |
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87 print_msg("Floating Point Exception"); |
| 0 | 88 break; |
| 89 #endif /* SIGFPE */ | |
| 90 #ifdef SIGQUIT | |
| 91 case SIGQUIT: | |
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92 print_msg("Keyboard Quit"); |
| 0 | 93 break; |
| 94 #endif /* SIGQUIT */ | |
| 95 #ifdef SIGPIPE | |
| 96 case SIGPIPE: | |
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97 print_msg("Broken Pipe"); |
| 0 | 98 break; |
| 99 #endif /* SIGPIPE */ | |
| 100 default: | |
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101 #ifndef DISABLE_STDIO |
| 0 | 102 fprintf(stderr, "# %d", sig); |
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103 #endif |
| 0 | 104 break; |
| 105 } | |
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106 print_msg(" (SDL Parachute Deployed)\n"); |
| 0 | 107 SDL_Quit(); |
| 108 exit(-sig); | |
| 109 } | |
| 110 | |
| 111 static int SDL_fatal_signals[] = { | |
| 112 SIGSEGV, | |
| 113 #ifdef SIGBUS | |
| 114 SIGBUS, | |
| 115 #endif | |
| 116 #ifdef SIGFPE | |
| 117 SIGFPE, | |
| 118 #endif | |
| 119 #ifdef SIGQUIT | |
| 120 SIGQUIT, | |
| 121 #endif | |
| 122 #ifdef SIGPIPE | |
| 123 SIGPIPE, | |
| 124 #endif | |
| 125 0 | |
| 126 }; | |
| 127 | |
| 128 void SDL_InstallParachute(void) | |
| 129 { | |
| 130 int i; | |
| 131 void (*ohandler)(int); | |
| 132 | |
| 133 /* Set a handler for any fatal signal not already handled */ | |
| 134 for ( i=0; SDL_fatal_signals[i]; ++i ) { | |
| 135 ohandler = signal(SDL_fatal_signals[i], SDL_Parachute); | |
| 136 if ( ohandler != SIG_DFL ) { | |
| 137 signal(SDL_fatal_signals[i], ohandler); | |
| 138 } | |
| 139 } | |
| 140 #ifdef SIGALRM | |
| 141 /* Set SIGALRM to be ignored -- necessary on Solaris */ | |
| 142 { | |
| 143 struct sigaction action, oaction; | |
| 144 | |
| 145 /* Set SIG_IGN action */ | |
| 146 memset(&action, 0, (sizeof action)); | |
| 147 action.sa_handler = SIG_IGN; | |
| 148 sigaction(SIGALRM, &action, &oaction); | |
| 149 | |
| 150 /* Reset original action if it was already being handled */ | |
| 151 if ( oaction.sa_handler != SIG_DFL ) { | |
| 152 sigaction(SIGALRM, &oaction, NULL); | |
| 153 } | |
| 154 } | |
| 155 #endif | |
| 156 return; | |
| 157 } | |
| 158 | |
| 159 void SDL_UninstallParachute(void) | |
| 160 { | |
| 161 int i; | |
| 162 void (*ohandler)(int); | |
| 163 | |
| 164 /* Remove a handler for any fatal signal handled */ | |
| 165 for ( i=0; SDL_fatal_signals[i]; ++i ) { | |
| 166 ohandler = signal(SDL_fatal_signals[i], SIG_DFL); | |
| 167 if ( ohandler != SDL_Parachute ) { | |
| 168 signal(SDL_fatal_signals[i], ohandler); | |
| 169 } | |
| 170 } | |
| 171 } | |
| 172 | |
| 173 #endif /* NO_SIGNAL_H */ |