Mercurial > sdl-ios-xcode
annotate include/SDL_thread.h @ 2842:97ba0be8b565
Date: Sat, 06 Dec 2008 15:27:00 +0100
From: Couriersud
Subject: SDL: Relative mouse movements
The patch below will reenable processing of relative mouse movements.
The DirectFB drivers generates those in "grabbed" mode. These ensure,
that even in fullscreen mode relative movements are reported. SDLMAME
depends on this for games with trackballs.
Looking at the code I ask myself whether relative movements should be
handled in the drivers (x11, directfb). Both x11 and directfb are able
to report relative movements. This would leave it to the driver to use
the most appropriate method for relative movements when at the border of
a fullscreen window or being "grabbed".
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 06 Dec 2008 17:50:50 +0000 |
| parents | 4436464c4f51 |
| children | 99210400e8b9 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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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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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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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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13 Lesser General Public License for more details. |
| 0 | 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 |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifndef _SDL_thread_h | |
| 24 #define _SDL_thread_h | |
| 25 | |
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26 /** |
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27 * \file SDL_thread.h |
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28 * |
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29 * Header for the SDL thread management routines |
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30 */ |
| 0 | 31 |
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32 #include "SDL_stdinc.h" |
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33 #include "SDL_error.h" |
| 0 | 34 |
| 35 /* Thread synchronization primitives */ | |
| 36 #include "SDL_mutex.h" | |
| 37 | |
| 38 #include "begin_code.h" | |
| 39 /* Set up for C function definitions, even when using C++ */ | |
| 40 #ifdef __cplusplus | |
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41 /* *INDENT-OFF* */ |
| 0 | 42 extern "C" { |
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43 /* *INDENT-ON* */ |
| 0 | 44 #endif |
| 45 | |
| 46 /* The SDL thread structure, defined in SDL_thread.c */ | |
| 47 struct SDL_Thread; | |
| 48 typedef struct SDL_Thread SDL_Thread; | |
| 49 | |
| 50 /* Create a thread */ | |
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51 #if (defined(__WIN32__) && !defined(HAVE_LIBC)) || defined(__OS2__) |
| 1190 | 52 /* |
| 53 We compile SDL into a DLL on OS/2. This means, that it's the DLL which | |
| 54 creates a new thread for the calling process with the SDL_CreateThread() | |
| 55 API. There is a problem with this, that only the RTL of the SDL.DLL will | |
| 56 be initialized for those threads, and not the RTL of the calling application! | |
| 57 To solve this, we make a little hack here. | |
| 58 We'll always use the caller's _beginthread() and _endthread() APIs to | |
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59 start a new thread. This way, if it's the SDL.DLL which uses this API, |
| 1190 | 60 then the RTL of SDL.DLL will be used to create the new thread, and if it's |
| 61 the application, then the RTL of the application will be used. | |
| 62 So, in short: | |
| 63 Always use the _beginthread() and _endthread() of the calling runtime library! | |
| 64 */ | |
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65 #define SDL_PASSED_BEGINTHREAD_ENDTHREAD |
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66 #ifndef _WIN32_WCE |
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67 #include <process.h> /* This has _beginthread() and _endthread() defined! */ |
| 1190 | 68 #endif |
| 69 | |
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70 #ifdef __OS2__ |
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71 typedef int (*pfnSDL_CurrentBeginThread) (void (*func) (void *), void *, |
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72 unsigned, void *arg); |
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73 typedef void (*pfnSDL_CurrentEndThread) (void); |
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74 #elif __GNUC__ |
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75 typedef unsigned long (__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned, |
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76 unsigned |
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77 (__stdcall * |
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78 func) (void *), |
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79 void *arg, |
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80 unsigned, |
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81 unsigned |
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82 *threadID); |
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83 typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code); |
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84 #else |
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85 typedef uintptr_t(__cdecl * pfnSDL_CurrentBeginThread) (void *, unsigned, |
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86 unsigned (__stdcall * |
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87 func) (void |
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88 *), |
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89 void *arg, unsigned, |
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90 unsigned *threadID); |
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91 typedef void (__cdecl * pfnSDL_CurrentEndThread) (unsigned code); |
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92 #endif |
| 1190 | 93 |
| 2060 | 94 extern DECLSPEC SDL_Thread *SDLCALL |
| 95 SDL_CreateThread(int (SDLCALL * f) (void *), void *data, | |
| 96 pfnSDL_CurrentBeginThread pfnBeginThread, | |
| 97 pfnSDL_CurrentEndThread pfnEndThread); | |
| 1190 | 98 |
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99 #ifdef __OS2__ |
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100 #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthread, _endthread) |
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101 #elif defined(_WIN32_WCE) |
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102 #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, NULL, NULL) |
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103 #else |
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104 #define SDL_CreateThread(fn, data) SDL_CreateThread(fn, data, _beginthreadex, _endthreadex) |
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105 #endif |
| 1190 | 106 #else |
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107 extern DECLSPEC SDL_Thread *SDLCALL |
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108 SDL_CreateThread(int (SDLCALL * fn) (void *), void *data); |
| 1190 | 109 #endif |
| 0 | 110 |
| 111 /* Get the 32-bit thread identifier for the current thread */ | |
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112 extern DECLSPEC Uint32 SDLCALL SDL_ThreadID(void); |
| 0 | 113 |
| 114 /* Get the 32-bit thread identifier for the specified thread, | |
| 115 equivalent to SDL_ThreadID() if the specified thread is NULL. | |
| 116 */ | |
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117 extern DECLSPEC Uint32 SDLCALL SDL_GetThreadID(SDL_Thread * thread); |
| 0 | 118 |
| 119 /* Wait for a thread to finish. | |
| 120 The return code for the thread function is placed in the area | |
| 121 pointed to by 'status', if 'status' is not NULL. | |
| 122 */ | |
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123 extern DECLSPEC void SDLCALL SDL_WaitThread(SDL_Thread * thread, int *status); |
| 0 | 124 |
| 2779 | 125 /* This function is here for binary compatibility with legacy apps, but |
| 126 in SDL 1.3 and later, it's a no-op. You cannot forcibly kill a thread | |
| 127 in a safe manner on many platforms. You should instead find a way to | |
| 128 alert your thread that it is time to terminate, and then have it gracefully | |
| 129 exit on its own. Do not ever call this function! | |
| 130 */ | |
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131 extern DECLSPEC void SDLCALL SDL_KillThread(SDL_Thread * thread); |
| 0 | 132 |
| 133 | |
| 134 /* Ends C function definitions when using C++ */ | |
| 135 #ifdef __cplusplus | |
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136 /* *INDENT-OFF* */ |
| 0 | 137 } |
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138 /* *INDENT-ON* */ |
| 0 | 139 #endif |
| 140 #include "close_code.h" | |
| 141 | |
| 142 #endif /* _SDL_thread_h */ | |
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143 |
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144 /* vi: set ts=4 sw=4 expandtab: */ |