annotate src/events/SDL_quit.c @ 2429:2c55b72ba46e gsoc2008_iphone

testdyngles is exactly what it sounds like -- a version of testdyngl that uses OpenGL ES calls instead of OpenGL. Was necessary to create because glOrtho is called glOrthof in OpenGL ES, and OpenGL ES doesn't have glBegin() type semantics for specifying geometry.
author Holmes Futrell <hfutrell@umail.ucsb.edu>
date Fri, 15 Aug 2008 00:52:52 +0000
parents c121d94672cb
children 99210400e8b9
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /* General quit handling code for SDL */
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25
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26 #ifdef HAVE_SIGNAL_H
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27 #include <signal.h>
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28 #endif
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29
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30 #include "SDL_events.h"
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31 #include "SDL_events_c.h"
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32
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33
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34 #ifdef HAVE_SIGNAL_H
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35 static void
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36 SDL_HandleSIG(int sig)
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37 {
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38 /* Reset the signal handler */
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39 signal(sig, SDL_HandleSIG);
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40
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41 /* Signal a quit interrupt */
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42 SDL_SendQuit();
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43 }
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44 #endif /* HAVE_SIGNAL_H */
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45
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46 /* Public functions */
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47 int
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48 SDL_QuitInit(void)
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49 {
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50 #ifdef HAVE_SIGNAL_H
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51 void (*ohandler) (int);
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52
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53 /* Both SIGINT and SIGTERM are translated into quit interrupts */
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54 ohandler = signal(SIGINT, SDL_HandleSIG);
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55 if (ohandler != SIG_DFL)
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56 signal(SIGINT, ohandler);
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57 ohandler = signal(SIGTERM, SDL_HandleSIG);
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58 if (ohandler != SIG_DFL)
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59 signal(SIGTERM, ohandler);
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60 #endif /* HAVE_SIGNAL_H */
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61
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62 /* That's it! */
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63 return (0);
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64 }
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66 void
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67 SDL_QuitQuit(void)
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68 {
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69 #ifdef HAVE_SIGNAL_H
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70 void (*ohandler) (int);
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71
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72 ohandler = signal(SIGINT, SIG_DFL);
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73 if (ohandler != SDL_HandleSIG)
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74 signal(SIGINT, ohandler);
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75 ohandler = signal(SIGTERM, SIG_DFL);
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76 if (ohandler != SDL_HandleSIG)
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77 signal(SIGTERM, ohandler);
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78 #endif /* HAVE_SIGNAL_H */
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79 }
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80
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81 /* This function returns 1 if it's okay to close the application window */
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82 int
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83 SDL_SendQuit(void)
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84 {
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85 int posted;
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86
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87 posted = 0;
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88 if (SDL_ProcessEvents[SDL_QUIT] == SDL_ENABLE) {
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89 SDL_Event event;
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90 event.type = SDL_QUIT;
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91 posted = (SDL_PushEvent(&event) > 0);
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92 }
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93 return (posted);
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94 }
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96 /* vi: set ts=4 sw=4 expandtab: */