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annotate src/thread/os2/SDL_systhread.c @ 2185:2032348afed1

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This code adds support for DirectColor visuals to SDL 1.3. The support uses part of the Xmu library. To ensure that the library is available and to keep people form having to install yet another library I have added the essential parts of Xmu in src/video/extensions/XmuStdCmap and an include file in src/video/extensions. The support makes use of standard X11 mechanisms to create color maps and make sure that an application uses the same color map for each window/visual combination. This should make it possible for gamma support to be implemented based on a single color map per application. Hurm... it looks like "make indent" modified a few extra files. Those are getting committed too.
author Bob Pendleton <bob@pendleton.com>
date Thu, 12 Jul 2007 20:00:50 +0000
parents c121d94672cb
children 4436464c4f51
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 /* OS/2 thread management routines for SDL */
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25
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26 #include <process.h>
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27 #define INCL_DOSERRORS
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28 #define INCL_DOSPROCESS
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29 #include <os2.h>
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30
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31 #include "SDL_thread.h"
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32 #include "../SDL_systhread.h"
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33 #include "../SDL_thread_c.h"
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34
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35 typedef struct ThreadStartParms
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36 {
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37 void *args;
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38 pfnSDL_CurrentEndThread pfnCurrentEndThread;
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39 } tThreadStartParms, *pThreadStartParms;
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40
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41 static void
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42 threadfunc(void *pparm)
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43 {
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44 pThreadStartParms pThreadParms = pparm;
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45 pfnSDL_CurrentEndThread pfnCurrentEndThread = NULL;
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46
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47 // Call the thread function!
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48 SDL_RunThread(pThreadParms->args);
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49
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50 // Get the current endthread we have to use!
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51 if (pThreadParms) {
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52 pfnCurrentEndThread = pThreadParms->pfnCurrentEndThread;
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53 SDL_free(pThreadParms);
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54 }
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55 // Call endthread!
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56 if (pfnCurrentEndThread)
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57 (*pfnCurrentEndThread) ();
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58 }
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59
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60 int
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61 SDL_SYS_CreateThread(SDL_Thread * thread, void *args,
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62 pfnSDL_CurrentBeginThread pfnBeginThread,
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63 pfnSDL_CurrentEndThread pfnEndThread)
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64 {
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65 pThreadStartParms pThreadParms = SDL_malloc(sizeof(tThreadStartParms));
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66 if (!pThreadParms) {
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67 SDL_SetError("Not enough memory to create thread");
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68 return (-1);
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69 }
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70 // Save the function which we will have to call to clear the RTL of calling app!
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71 pThreadParms->pfnCurrentEndThread = pfnEndThread;
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72 // Also save the real parameters we have to pass to thread function
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73 pThreadParms->args = args;
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74 // Start the thread using the runtime library of calling app!
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75 thread->threadid = thread->handle =
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76 (*pfnBeginThread) (threadfunc, NULL, 512 * 1024, pThreadParms);
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77 if ((int) thread->threadid <= 0) {
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78 SDL_SetError("Not enough resources to create thread");
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79 return (-1);
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80 }
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81 return (0);
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82 }
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83
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84 void
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85 SDL_SYS_SetupThread(void)
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86 {
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87 return;
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88 }
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89
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90 DECLSPEC Uint32 SDLCALL
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91 SDL_ThreadID(void)
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92 {
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93 PTIB tib;
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94 DosGetInfoBlocks(&tib, NULL);
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95 return ((Uint32) (tib->tib_ptib2->tib2_ultid));
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96 }
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97
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98 void
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99 SDL_SYS_WaitThread(SDL_Thread * thread)
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100 {
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101 TID tid = thread->handle;
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102 DosWaitThread(&tid, DCWW_WAIT);
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103 }
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104
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105 /* WARNING: This function is really a last resort.
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106 * Threads should be signaled and then exit by themselves.
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107 * TerminateThread() doesn't perform stack and DLL cleanup.
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108 */
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109 void
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110 SDL_SYS_KillThread(SDL_Thread * thread)
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111 {
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112 DosKillThread(thread->handle);
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113 }
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114
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115 /* vi: set ts=4 sw=4 expandtab: */