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[Fix] (Magma): eglSwapInterval reaches the swapchain - 0 picks IMMEDIATE, else MAILBOX, else FIFO; >= 1 FIFO; < 0 FIFO_RELAXED, else FIFO; rebuilt after the next present when the mode changes, and an ended server session forgets its interval (MC 26.3 inproc vsync on: flat 120)

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swung0x48
2026-09-29 05:52:22 -04:00
parent 74ae652ecd
commit 86dc38a07e
12 changed files with 219 additions and 14 deletions
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MobileGL/MG_Backend/DirectVulkan/BackendObject_DirectVulkan.cpp
+14 -1
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@@ -345,6 +345,10 @@ namespace MobileGL::MG_Backend::DirectVulkan {
pVulkanRenderer.reset();
ClearProgramResourceCaches();
}
// And the swap interval it asked for (DirectVulkan.h).
if (MG_Config::Transport != MG_Config::TransportMode::Monolith) {
ForgetRequestedSwapInterval();
}
}
#else
BackendObject_DirectVulkan::~BackendObject_DirectVulkan() = default;
@@ -363,7 +367,9 @@ namespace MobileGL::MG_Backend::DirectVulkan {
// Any renderer instance this assignment replaces is destroyed here;
// fence/timer-query handles stamped with the old generation go stale.
BumpRendererGeneration();
pVulkanRenderer = MakeUnique<MG_Backend::DirectVulkan::VulkanRenderer>(nativeWindow);
VulkanRendererConfig config;
config.SwapInterval = GetRequestedSwapInterval();
pVulkanRenderer = MakeUnique<MG_Backend::DirectVulkan::VulkanRenderer>(nativeWindow, config);
MOBILEGL_ASSERT(pVulkanRenderer != nullptr, "InitWindowSurface: VulkanRenderer creation failed");
pVulkanRenderer->Initialize();
return true;
@@ -486,6 +492,12 @@ namespace MobileGL::MG_Backend::DirectVulkan {
return BackendObject::SwapEGLBuffers(dpy, draw);
}
void BackendObject_DirectVulkan::SetEGLSwapInterval(Int interval) {
// Same lock as SwapEGLBuffers: the renderer reads the request in Present.
const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
BackendObject::SetEGLSwapInterval(interval);
}
void BackendObject_DirectVulkan::ReleaseEGLSurface(EGLSurface surface) {
const std::lock_guard<std::recursive_mutex> lock(m_eglStateMutex);
BackendObject::ReleaseEGLSurface(surface);
@@ -727,6 +739,7 @@ namespace MobileGL::MG_Backend::DirectVulkan {
static Bool funcsTableInitialized = false;
if (!funcsTableInitialized) {
funcsTable.Present = Present;
funcsTable.SetSwapInterval = SetSwapInterval;
funcsTable.GL.DrawArrays = DrawArrays;
funcsTable.GL.DrawElements = DrawElements;
funcsTable.GL.DrawElementsBaseVertex = DrawElementsBaseVertex;