Mercurial > sdl-ios-xcode
annotate src/thread/epoc/SDL_sysmutex.cpp @ 889:eac8c69b5706
ate: Fri, 09 Apr 2004 20:07:10 +0200
From: Hibernatus
Subject: [SDL] BUG: changing video mode in opengl + windows
In WIN_GL_SetupWindow (SDL12/src/video/wincommon/SDL_wingl.c) you call
WIN_GL_ResetWindow when SetPixelFormat fails.
WIN_GL_ResetWindow cannot properly work in its current state, because there
are several things to update once you've created a new window. At least
DirectInput doesn't work anymore here (which is somewhat annoying for the
player :).
I think you can simply remove that function. Many games don't try to
recover from that exception, that's why the newest ATI drivers emulate 16
bpp display in 32 bpp mode so the error never occurs (but the games may run
much slower).
Having SDL_SetVideoMode return NULL would be better than actually setting
the video mode and losing focus, directinput and maybe directsound too. It
also made my previous drivers crash (when switching from 32 bpp windowed to
16 bpp fullscreen).
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 16 May 2004 18:02:48 +0000 |
parents | e8157fcb3114 |
children | c9b51268668f |
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, 1998, 1999, 2000 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 Library General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2 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 Library 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 Library General Public |
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16 License along with this library; if not, write to the Free |
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
173
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21 */ |
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22 |
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23 /* |
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24 SDL_sysmutex.cpp |
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25 |
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26 Epoc version by Markus Mertama (w@iki.fi) |
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27 */ |
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28 |
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29 |
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30 #ifdef SAVE_RCSID |
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31 static char rcsid = |
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32 "@(#) $Id$"; |
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33 #endif |
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34 |
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35 /* Mutex functions using the Win32 API */ |
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36 |
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37 //#include <stdio.h> |
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38 //#include <stdlib.h> |
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39 |
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40 #include<e32std.h> |
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41 |
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42 #include "SDL_error.h" |
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43 #include "SDL_mutex.h" |
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44 |
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45 |
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46 |
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47 struct SDL_mutex |
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48 { |
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49 TInt handle; |
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50 }; |
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51 |
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52 extern TInt CreateUnique(TInt (*aFunc)(const TDesC& aName, TAny*, TAny*), TAny*, TAny*); |
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53 |
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54 TInt NewMutex(const TDesC& aName, TAny* aPtr1, TAny*) |
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55 { |
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56 return ((RMutex*)aPtr1)->CreateGlobal(aName); |
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57 } |
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58 |
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59 /* Create a mutex */ |
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60 SDL_mutex *SDL_CreateMutex(void) |
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61 { |
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62 RMutex rmutex; |
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63 |
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64 TInt status = CreateUnique(NewMutex, &rmutex, NULL); |
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65 if(status != KErrNone) |
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66 { |
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67 SDL_SetError("Couldn't create mutex"); |
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68 } |
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69 SDL_mutex* mutex = new /*(ELeave)*/ SDL_mutex; |
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70 mutex->handle = rmutex.Handle(); |
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71 return(mutex); |
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72 } |
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73 |
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74 /* Free the mutex */ |
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75 void SDL_DestroyMutex(SDL_mutex *mutex) |
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76 { |
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77 if ( mutex ) |
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78 { |
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79 RMutex rmutex; |
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80 rmutex.SetHandle(mutex->handle); |
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81 rmutex.Signal(); |
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82 rmutex.Close(); |
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83 delete(mutex); |
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84 mutex = NULL; |
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85 } |
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86 } |
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87 |
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88 /* Lock the mutex */ |
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89 int SDL_mutexP(SDL_mutex *mutex) |
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90 { |
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91 if ( mutex == NULL ) { |
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92 SDL_SetError("Passed a NULL mutex"); |
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93 return -1; |
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94 } |
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95 RMutex rmutex; |
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96 rmutex.SetHandle(mutex->handle); |
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97 rmutex.Wait(); |
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98 return(0); |
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99 } |
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100 |
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101 /* Unlock the mutex */ |
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102 int SDL_mutexV(SDL_mutex *mutex) |
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103 { |
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104 if ( mutex == NULL ) { |
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105 SDL_SetError("Passed a NULL mutex"); |
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106 return -1; |
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107 } |
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108 RMutex rmutex; |
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109 rmutex.SetHandle(mutex->handle); |
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110 rmutex.Signal(); |
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111 return(0); |
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112 } |