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xdemos/glsync: check glXMakeCurrent return value

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Since this program is used for testing, catching this case can be helpful.
This commit is contained in:
Jesse Barnes 2010-01-04 13:13:57 -05:00
parent f860aac0d8
commit 0269dc19b5
1 changed files with 5 additions and 1 deletions
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6
progs/xdemos/glsync.c
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@ -120,6 +120,7 @@ int main(int argc, char *argv[])
int width = 500, height = 500, verbose = 0,
countonly = 0, interval = 1;
int c, i = 1;
int ret;
int attribs[] = { GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
@ -234,7 +235,10 @@ int main(int argc, char *argv[])
}
XMapWindow(disp, winGL);
glXMakeCurrent(disp, winGL, context);
ret = glXMakeCurrent(disp, winGL, context);
if (ret) {
fprintf(stderr, "failed to make context current: %d\n", ret);
}
video_sync_get = glXGetProcAddress((unsigned char *)"glXGetVideoSyncSGI");
video_sync = glXGetProcAddress((unsigned char *)"glXWaitVideoSyncSGI");