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redo the event loop to make event response better

This commit is contained in:
Brian Paul 2004-07-02 14:35:05 +00:00
parent 3bdc8535fc
commit d07859e718
1 changed files with 23 additions and 27 deletions
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50
progs/xdemos/glthreads.c
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@ -1,4 +1,3 @@
/*
* Copyright (C) 2000 Brian Paul All Rights Reserved.
*
@ -60,7 +59,7 @@ struct winthread {
#define MAX_WINTHREADS 100
static struct winthread WinThreads[MAX_WINTHREADS];
static int NumWinThreads = 0;
static GLboolean ExitFlag = GL_FALSE;
static volatile GLboolean ExitFlag = GL_FALSE;
@ -186,33 +185,30 @@ draw_loop(struct winthread *wt)
static void
event_loop(Display *dpy)
{
while (!ExitFlag) {
static long mask = StructureNotifyMask | ExposureMask | KeyPressMask;
XEvent event;
int i;
XEvent event;
int i;
for (i = 0; i < NumWinThreads; i++) {
struct winthread *wt = &WinThreads[i];
while (XCheckWindowEvent(dpy, wt->Win, mask, &event)) {
if (event.xany.window == wt->Win) {
switch (event.type) {
case ConfigureNotify:
resize(wt, event.xconfigure.width,
event.xconfigure.height);
break;
case KeyPress:
/* tell all threads to exit */
ExitFlag = GL_TRUE;
/*printf("exit draw_loop %d\n", wt->Index);*/
return;
default:
/*no-op*/ ;
while (!ExitFlag) {
XNextEvent(dpy, &event);
switch (event.type) {
case ConfigureNotify:
/* Find winthread for this event's window */
for (i = 0; i < NumWinThreads; i++) {
struct winthread *wt = &WinThreads[i];
if (event.xconfigure.window == wt->Win) {
resize(wt, event.xconfigure.width,
event.xconfigure.height);
break;
}
}
else {
printf("window mismatch\n");
}
}
break;
case KeyPress:
/* tell all threads to exit */
ExitFlag = GL_TRUE;
/*printf("exit draw_loop %d\n", wt->Index);*/
return;
default:
/*no-op*/ ;
}
}
}
@ -391,7 +387,7 @@ main(int argc, char *argv[])
for (i = 0; i < numThreads; i++) {
pthread_create(&WinThreads[i].Thread, NULL, thread_function,
(void*) &WinThreads[i]);
printf("Created Thread %p\n", WinThreads[i].Thread);
printf("Created Thread %d\n", (int) WinThreads[i].Thread);
}
event_loop(dpy);