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Use SDL_WaitEventTimeout() on SDL 2.0.16

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This commit is contained in:
Cameron Gutman 2021-08-15 15:16:51 -05:00
parent 425efe3d72
commit 4873862d16
1 changed files with 16 additions and 0 deletions
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16
app/streaming/session.cpp
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@ -1365,6 +1365,16 @@ void Session::execInternal()
// because we want to suspend all Qt processing until the stream is over.
SDL_Event event;
for (;;) {
#if SDL_VERSION_ATLEAST(2, 0, 16) && !defined(STEAM_LINK)
// SDL 2.0.16 has a proper wait event implementation that uses platform
// support to block on events rather than polling on Windows, macOS, and
// X11. It will fall back to 1 ms polling if a joystick is connected, so
// we don't use it for STEAM_LINK to ensure we only poll every 10 ms.
if (!SDL_WaitEventTimeout(&event, 1000)) {
presence.runCallbacks();
continue;
}
#else
// We explicitly use SDL_PollEvent() and SDL_Delay() because
// SDL_WaitEvent() has an internal SDL_Delay(10) inside which
// blocks this thread too long for high polling rate mice and high
@ -1380,6 +1390,7 @@ void Session::execInternal()
presence.runCallbacks();
continue;
}
#endif
switch (event.type) {
case SDL_QUIT:
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
@ -1427,6 +1438,8 @@ void Session::execInternal()
break;
}
presence.runCallbacks();
// Capture the mouse on SDL_WINDOWEVENT_ENTER if needed
if (needsFirstEnterCapture && event.window.event == SDL_WINDOWEVENT_ENTER) {
m_InputHandler->setCaptureActive(true);
@ -1546,10 +1559,12 @@ void Session::execInternal()
case SDL_KEYUP:
case SDL_KEYDOWN:
presence.runCallbacks();
m_InputHandler->handleKeyEvent(&event.key);
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
presence.runCallbacks();
m_InputHandler->handleMouseButtonEvent(&event.button);
break;
case SDL_MOUSEMOTION:
@ -1563,6 +1578,7 @@ void Session::execInternal()
break;
case SDL_CONTROLLERBUTTONDOWN:
case SDL_CONTROLLERBUTTONUP:
presence.runCallbacks();
m_InputHandler->handleControllerButtonEvent(&event.cbutton);
break;
case SDL_CONTROLLERDEVICEADDED: