diff options
| -rw-r--r-- | progs/wgl/wglthreads/wglthreads.c | 65 |
1 files changed, 43 insertions, 22 deletions
diff --git a/progs/wgl/wglthreads/wglthreads.c b/progs/wgl/wglthreads/wglthreads.c index 710a1757fc0..32f3e45edf5 100644 --- a/progs/wgl/wglthreads/wglthreads.c +++ b/progs/wgl/wglthreads/wglthreads.c @@ -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[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; + WinThreads[0].Index = 0; + WinThreads[0].hEventInitialised = CreateEvent(NULL, TRUE, FALSE, NULL); + WinThreads[0].hEventRedraw = CreateEvent(NULL, FALSE, FALSE, NULL); + + 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; } |