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wgl: Add an `-s' option to wglthreads to force single-threaded operation.

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This commit is contained in:
Michal Krol 2009-03-19 11:16:01 +01:00
parent 355e9bb45c
commit 1342664434
1 changed files with 42 additions and 21 deletions
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63
progs/wgl/wglthreads/wglthreads.c
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@ -30,6 +30,7 @@
* -l Enable application-side locking
* -n <num threads> Number of threads to create (default is 2)
* -t Use texture mapping
* -s Force single-threaded.
*
* Brian Paul 20 July 2000
*/
@ -83,6 +84,7 @@ static HANDLE ExitEvent = NULL;
static GLboolean Locking = 0;
static GLboolean Texture = GL_FALSE;
static GLboolean SingleThreaded = GL_FALSE;
static GLuint TexObj = 12;
static GLboolean Animate = GL_TRUE;
@ -518,6 +520,7 @@ usage(void)
printf(" -n NUMTHREADS Number of threads to create\n");
printf(" -l Use application-side locking\n");
printf(" -t Enable texturing\n");
printf(" -s Force single-threaded\n");
printf("Keyboard:\n");
printf(" Esc Exit\n");
printf(" t Change texture image (requires -t option)\n");
@ -530,7 +533,6 @@ int
main(int argc, char *argv[])
{
int i;
HANDLE threads[MAX_WINTHREADS];
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "-h") == 0) {
@ -550,11 +552,17 @@ main(int argc, char *argv[])
NumWinThreads = MAX_WINTHREADS;
i++;
}
else if (strcmp(argv[i], "-s") == 0) {
SingleThreaded = GL_TRUE;
}
else {
usage();
exit(1);
}
}
if (SingleThreaded)
printf("wglthreads: Forcing single-threaded, no other threads will be created.\n");
if (Locking)
printf("wglthreads: Using explicit locks around WGL calls.\n");
@ -564,30 +572,43 @@ main(int argc, char *argv[])
InitializeCriticalSection(&Mutex);
ExitEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
printf("wglthreads: creating threads\n");
if (SingleThreaded) {
NumWinThreads = 1;
/* Create the threads */
for (i = 0; i < NumWinThreads; i++) {
DWORD id;
WinThreads[0].Index = 0;
WinThreads[0].hEventInitialised = CreateEvent(NULL, TRUE, FALSE, NULL);
WinThreads[0].hEventRedraw = CreateEvent(NULL, FALSE, FALSE, NULL);
WinThreads[i].Index = i;
WinThreads[i].hEventInitialised = CreateEvent(NULL, TRUE, FALSE, NULL);
WinThreads[i].hEventRedraw = CreateEvent(NULL, FALSE, FALSE, NULL);
WinThreads[i].Thread = CreateThread(NULL,
0,
ThreadProc,
(void*) &WinThreads[i],
0,
&id);
printf("wglthreads: Created thread %p\n", (void *) WinThreads[i].Thread);
WaitForSingleObject(WinThreads[i].hEventInitialised, INFINITE);
threads[i] = WinThreads[i].Thread;
ThreadProc((void*) &WinThreads[0]);
}
else {
HANDLE threads[MAX_WINTHREADS];
/* Wait for all threads to finish. */
WaitForMultipleObjects(NumWinThreads, threads, TRUE, INFINITE);
printf("wglthreads: creating threads\n");
/* Create the threads */
for (i = 0; i < NumWinThreads; i++) {
DWORD id;
WinThreads[i].Index = i;
WinThreads[i].hEventInitialised = CreateEvent(NULL, TRUE, FALSE, NULL);
WinThreads[i].hEventRedraw = CreateEvent(NULL, FALSE, FALSE, NULL);
WinThreads[i].Thread = CreateThread(NULL,
0,
ThreadProc,
(void*) &WinThreads[i],
0,
&id);
printf("wglthreads: Created thread %p\n", (void *) WinThreads[i].Thread);
WaitForSingleObject(WinThreads[i].hEventInitialised, INFINITE);
threads[i] = WinThreads[i].Thread;
}
/* Wait for all threads to finish. */
WaitForMultipleObjects(NumWinThreads, threads, TRUE, INFINITE);
}
return 0;
}