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[Fix] (DirectVulkan): give each served session its own renderer and Magma state

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swung0x48
2026-10-02 05:52:38 -04:00
parent 168808d1a7
commit 15dbe78ce6
20 changed files with 407 additions and 145 deletions
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MobileGL/MG_Backend/DirectVulkan/BackendObject_DirectVulkan.cpp
+16
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@@ -332,6 +332,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
#if MOBILEGL_BUILD_DISAGGREGATED
BackendObject_DirectVulkan::~BackendObject_DirectVulkan() {
// Everything below reaches this session's renderer slot, whichever thread destroys it.
MagmaSession* const ownSession = m_magmaSession.get();
MagmaSession* const previousSession = BoundMagmaSession();
if (ownSession != nullptr) BindMagmaSessionToThisThread(ownSession);
// P12 review fix: A SERVER SESSION THAT ENDS WITHOUT A CLEAN TEARDOWN LEAVES NO RENDERER ON
// THE WINDOW. The renderer - swapchain and VkSurfaceKHR on the window - is a process global
// that only ReleaseEGLResources / a released surface drops, and a client that went away
@@ -349,6 +353,11 @@ namespace MobileGL::MG_Backend::DirectVulkan {
if (MG_Config::Transport != MG_Config::TransportMode::Monolith) {
ForgetRequestedSwapInterval();
}
// The session's state goes with it, and no thread may keep answering with it.
m_magmaSession.reset();
if (ownSession != nullptr) {
BindMagmaSessionToThisThread(previousSession == ownSession ? nullptr : previousSession);
}
}
#else
BackendObject_DirectVulkan::~BackendObject_DirectVulkan() = default;
@@ -388,6 +397,13 @@ namespace MobileGL::MG_Backend::DirectVulkan {
return true;
}
void BackendObject_DirectVulkan::BindSessionStateToThisThread() {
if (m_magmaSession == nullptr) m_magmaSession = MakeUnique<MagmaSession>();
BindMagmaSessionToThisThread(m_magmaSession.get());
MGLOG_I("DirectVulkan: session state %llu bound to this apply thread",
static_cast<unsigned long long>(m_magmaSession->Id()));
}
void BackendObject_DirectVulkan::Initialize() {
#if MOBILEGL_BUILD_DISAGGREGATED
VkBufferManager::RegisterWireResourceOps();