Mercurial > sdl-ios-xcode
annotate src/thread/os2/SDL_systhread.c @ 4165:3b8ac3d311a2 SDL-1.2
Hello.
This patch provides basic support for video on the Sony PS3
Linux framebuffer. Scaling, format-conversion, and drawing is
done from the SPEs, so there is little performance impact to
PPE applications. This is by no means production quality code,
but it is a very good start and a good example of how to use the
PS3's hardware capabilities to accelerate video playback on
the box.
The driver has been verified to work with ffplay, mplayer and xine.
This piece of software has been developed at the IBM R&D Lab
in Boeblingen, Germany and is now returned to the community.
Enjoy !
Signed-off-by: D.Herrendoerfer < d.herrendoerfer [at] de [dot] ibm [dot] com >
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 02 Apr 2009 04:06:55 +0000 |
| parents | a1b03ba2fcd0 |
| children |
| rev | line source |
|---|---|
| 1190 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 Sam Lantinga |
| 1190 | 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 |
| 1190 | 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. |
| 1190 | 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. |
| 1190 | 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 |
| 1190 | 18 |
| 19 Sam Lantinga | |
| 20 slouken@libsdl.org | |
| 21 */ | |
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22 #include "SDL_config.h" |
| 1190 | 23 |
| 24 /* OS/2 thread management routines for SDL */ | |
| 25 | |
| 26 #include <process.h> | |
| 27 #define INCL_DOSERRORS | |
| 28 #define INCL_DOSPROCESS | |
| 29 #include <os2.h> | |
| 30 | |
| 31 #include "SDL_thread.h" | |
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32 #include "../SDL_systhread.h" |
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33 #include "../SDL_thread_c.h" |
| 1190 | 34 |
| 35 typedef struct ThreadStartParms | |
| 36 { | |
| 37 void *args; | |
| 38 pfnSDL_CurrentEndThread pfnCurrentEndThread; | |
| 39 } tThreadStartParms, *pThreadStartParms; | |
| 40 | |
| 41 static void threadfunc(void *pparm) | |
| 42 { | |
| 43 pThreadStartParms pThreadParms = pparm; | |
| 44 pfnSDL_CurrentEndThread pfnCurrentEndThread = NULL; | |
| 45 | |
| 46 // Call the thread function! | |
| 47 SDL_RunThread(pThreadParms->args); | |
| 48 | |
| 49 // Get the current endthread we have to use! | |
| 50 if (pThreadParms) | |
| 51 { | |
| 52 pfnCurrentEndThread = pThreadParms->pfnCurrentEndThread; | |
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53 SDL_free(pThreadParms); |
| 1190 | 54 } |
| 55 // Call endthread! | |
| 56 if (pfnCurrentEndThread) | |
| 57 (*pfnCurrentEndThread)(); | |
| 58 } | |
| 59 | |
| 60 int SDL_SYS_CreateThread(SDL_Thread *thread, void *args, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread) | |
| 61 { | |
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62 pThreadStartParms pThreadParms = SDL_malloc(sizeof(tThreadStartParms)); |
| 1190 | 63 if (!pThreadParms) |
| 64 { | |
| 65 SDL_SetError("Not enough memory to create thread"); | |
| 66 return(-1); | |
| 67 } | |
| 68 | |
| 69 // Save the function which we will have to call to clear the RTL of calling app! | |
| 70 pThreadParms->pfnCurrentEndThread = pfnEndThread; | |
| 71 // Also save the real parameters we have to pass to thread function | |
| 72 pThreadParms->args = args; | |
| 73 // Start the thread using the runtime library of calling app! | |
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74 thread->threadid = thread->handle = (*pfnBeginThread)(threadfunc, NULL, 512*1024, pThreadParms); |
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75 if ((int)thread->threadid <= 0) |
| 1190 | 76 { |
| 77 SDL_SetError("Not enough resources to create thread"); | |
| 78 return(-1); | |
| 79 } | |
| 80 return(0); | |
| 81 } | |
| 82 | |
| 83 void SDL_SYS_SetupThread(void) | |
| 84 { | |
| 85 return; | |
| 86 } | |
| 87 | |
| 88 DECLSPEC Uint32 SDLCALL SDL_ThreadID(void) | |
| 89 { | |
| 90 PTIB tib; | |
| 91 DosGetInfoBlocks(&tib, NULL); | |
| 92 return((Uint32) (tib->tib_ptib2->tib2_ultid)); | |
| 93 } | |
| 94 | |
| 95 void SDL_SYS_WaitThread(SDL_Thread *thread) | |
| 96 { | |
| 97 TID tid = thread->handle; | |
| 98 DosWaitThread(&tid, DCWW_WAIT); | |
| 99 } | |
| 100 | |
| 101 /* WARNING: This function is really a last resort. | |
| 102 * Threads should be signaled and then exit by themselves. | |
| 103 * TerminateThread() doesn't perform stack and DLL cleanup. | |
| 104 */ | |
| 105 void SDL_SYS_KillThread(SDL_Thread *thread) | |
| 106 { | |
| 107 DosKillThread(thread->handle); | |
| 108 } |