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Destroy the VTRenderer before leaving fullscreen

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Fixes #973
This commit is contained in:
Cameron Gutman 2023-09-11 21:07:54 -05:00
parent 2ac7176787
commit 64789ea8bc
2 changed files with 9 additions and 1 deletions
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6
app/streaming/session.cpp
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@ -1244,11 +1244,15 @@ void Session::toggleFullscreen()
{ {
bool fullScreen = !(SDL_GetWindowFlags(m_Window) & m_FullScreenFlag); bool fullScreen = !(SDL_GetWindowFlags(m_Window) & m_FullScreenFlag);
#ifdef Q_OS_WIN32 #if defined(Q_OS_WIN32) || defined(Q_OS_DARWIN)
// Destroy the video decoder before toggling full-screen because D3D9 can try // Destroy the video decoder before toggling full-screen because D3D9 can try
// to put the window back into full-screen before we've managed to destroy // to put the window back into full-screen before we've managed to destroy
// the renderer. This leads to excessive flickering and can cause the window // the renderer. This leads to excessive flickering and can cause the window
// decorations to get messed up as SDL and D3D9 fight over the window style. // decorations to get messed up as SDL and D3D9 fight over the window style.
//
// On Apple Silicon Macs, the AVSampleBufferDisplayLayer may cause WindowServer
// to deadlock when transitioning out of fullscreen. Destroy the decoder before
// exiting fullscreen as a workaround. See issue #973.
SDL_AtomicLock(&m_DecoderLock); SDL_AtomicLock(&m_DecoderLock);
delete m_VideoDecoder; delete m_VideoDecoder;
m_VideoDecoder = nullptr; m_VideoDecoder = nullptr;

4
app/streaming/video/ffmpeg-renderers/vt.mm
View File

@ -112,6 +112,10 @@ public:
if (m_DisplayLayer != nullptr) { if (m_DisplayLayer != nullptr) {
[m_DisplayLayer release]; [m_DisplayLayer release];
} }
// It appears to be necessary to run the event loop after destroying
// the AVSampleBufferDisplayLayer to avoid issue #973.
SDL_PumpEvents();
}} }}
static static