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Micro-optimization: Avoid repeated calls to XQLength

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Kovid Goyal 2019-07-08 11:01:17 +05:30
parent 8f8138d9bd
commit d259b12ae7
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GPG key ID: 06BC317B515ACE7C
1 changed files with 8 additions and 9 deletions
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17
glfw/x11_window.c vendored
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@ -2473,14 +2473,12 @@ void _glfwPlatformSetWindowOpacity(_GLFWwindow* window, float opacity)
}
static inline unsigned
dispatch_x11_queued_events(void) {
unsigned dispatched = 0;
while (XQLength(_glfw.x11.display) > 0)
{
dispatch_x11_queued_events(int num_events) {
unsigned dispatched = num_events > 0 ? num_events : 0;
while (num_events-- > 0) {
XEvent event;
XNextEvent(_glfw.x11.display, &event);
processEvent(&event);
dispatched += 1;
}
return dispatched;
}
@ -2493,8 +2491,7 @@ _glfwDispatchX11Events(void) {
#if defined(__linux__)
_glfwDetectJoystickConnectionLinux();
#endif
XPending(_glfw.x11.display);
dispatched += dispatch_x11_queued_events();
dispatched += dispatch_x11_queued_events(XEventsQueued(_glfw.x11.display, QueuedAfterFlush));
window = _glfw.x11.disabledCursorWindow;
if (window)
@ -2512,8 +2509,10 @@ _glfwDispatchX11Events(void) {
}
XFlush(_glfw.x11.display);
// XFlush can cause events to be queued
dispatched += dispatch_x11_queued_events();
// XFlush can cause events to be queued, we dont use QueuedAfterFlush here
// as something might have inserted events into the queue, but we want to guarantee
// a flush.
dispatched += dispatch_x11_queued_events(XEventsQueued(_glfw.x11.display, QueuedAlready));
return dispatched;
}