update SDL soruce to 2.0.14

Edward Rudd

2021-06-15 dec7875a6e23212021e4d9080330a42832dfe02a

 source/src/thread/windows/SDL_systhread.c

@@ -74,23 +74,16 @@
#endif /* !SDL_PASSED_BEGINTHREAD_ENDTHREAD */


typedef struct ThreadStartParms
{
    void *args;
    pfnSDL_CurrentEndThread pfnCurrentEndThread;
} tThreadStartParms, *pThreadStartParms;

static DWORD
RunThread(void *data)
{
    pThreadStartParms pThreadParms = (pThreadStartParms) data;
    pfnSDL_CurrentEndThread pfnEndThread = pThreadParms->pfnCurrentEndThread;
    void *args = pThreadParms->args;
    SDL_free(pThreadParms);
    SDL_RunThread(args);
    if (pfnEndThread != NULL)
    SDL_Thread *thread = (SDL_Thread *) data;
    pfnSDL_CurrentEndThread pfnEndThread = (pfnSDL_CurrentEndThread) thread->endfunc;
    SDL_RunThread(thread);
    if (pfnEndThread != NULL) {
        pfnEndThread(0);
    return (0);
    }
    return 0;
}

static DWORD WINAPI
@@ -107,33 +100,27 @@

#ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD
int
SDL_SYS_CreateThread(SDL_Thread * thread, void *args,
SDL_SYS_CreateThread(SDL_Thread * thread,
                     pfnSDL_CurrentBeginThread pfnBeginThread,
                     pfnSDL_CurrentEndThread pfnEndThread)
{
#elif defined(__CYGWIN__) || defined(__WINRT__)
int
SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
SDL_SYS_CreateThread(SDL_Thread * thread)
{
    pfnSDL_CurrentBeginThread pfnBeginThread = NULL;
    pfnSDL_CurrentEndThread pfnEndThread = NULL;
#else
int
SDL_SYS_CreateThread(SDL_Thread * thread, void *args)
SDL_SYS_CreateThread(SDL_Thread * thread)
{
    pfnSDL_CurrentBeginThread pfnBeginThread = (pfnSDL_CurrentBeginThread)_beginthreadex;
    pfnSDL_CurrentEndThread pfnEndThread = (pfnSDL_CurrentEndThread)_endthreadex;
#endif /* SDL_PASSED_BEGINTHREAD_ENDTHREAD */
    pThreadStartParms pThreadParms =
        (pThreadStartParms) SDL_malloc(sizeof(tThreadStartParms));
    const DWORD flags = thread->stacksize ? STACK_SIZE_PARAM_IS_A_RESERVATION : 0;
    if (!pThreadParms) {
        return SDL_OutOfMemory();
    }

    /* Save the function which we will have to call to clear the RTL of calling app! */
    pThreadParms->pfnCurrentEndThread = pfnEndThread;
    /* Also save the real parameters we have to pass to thread function */
    pThreadParms->args = args;
    thread->endfunc = pfnEndThread;

    /* thread->stacksize == 0 means "system default", same as win32 expects */
    if (pfnBeginThread) {
@@ -141,12 +128,12 @@
        thread->handle = (SYS_ThreadHandle)
            ((size_t) pfnBeginThread(NULL, (unsigned int) thread->stacksize,
                                     RunThreadViaBeginThreadEx,
                                     pThreadParms, flags, &threadid));
                                     thread, flags, &threadid));
    } else {
        DWORD threadid = 0;
        thread->handle = CreateThread(NULL, thread->stacksize,
                                      RunThreadViaCreateThread,
                                      pThreadParms, flags, &threadid);
                                      thread, flags, &threadid);
    }
    if (thread->handle == NULL) {
        return SDL_SetError("Not enough resources to create thread");