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fix(diagnostics): instrument applyMsaaChange to find NULL deref

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AMD crash is caused by msaaChangePending_ flipping true from saved settings.
applyMsaaChange() then crashes with faultAddr=(nil). Add LOG_WARNING markers
between pipeline recreation groups to identify the failing call.
This commit is contained in:
Kelsi 2026-04-03 20:42:08 -07:00
parent 45ac7e4d8e
commit 9c4e61a227
1 changed files with 6 additions and 2 deletions
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8
src/rendering/renderer.cpp
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@ -734,12 +734,13 @@ void Renderer::applyMsaaChange() {
VkSampleCountFlagBits current = vkCtx->getMsaaSamples();
if (samples == current) return;
LOG_INFO("Changing MSAA from ", static_cast<int>(current), "x to ", static_cast<int>(samples), "x");
LOG_WARNING("MSAA change: ", static_cast<int>(current), "x → ", static_cast<int>(samples), "x");
// Single GPU wait — all subsequent operations are CPU-side object creation
vkDeviceWaitIdle(vkCtx->getDevice());
// Set new MSAA and recreate swapchain (render pass, depth, MSAA image, framebuffers)
LOG_WARNING("MSAA: recreating swapchain");
vkCtx->setMsaaSamples(samples);
if (!vkCtx->recreateSwapchain(window->getWidth(), window->getHeight())) {
LOG_ERROR("MSAA change failed — reverting to 1x");
@ -748,6 +749,7 @@ void Renderer::applyMsaaChange() {
}
// Recreate all sub-renderer pipelines (they embed sample count from render pass)
LOG_WARNING("MSAA: recreating terrain/water/wmo/m2/char pipelines");
if (terrainRenderer) terrainRenderer->recreatePipelines();
if (waterRenderer) {
waterRenderer->recreatePipelines();
@ -756,6 +758,7 @@ void Renderer::applyMsaaChange() {
if (wmoRenderer) wmoRenderer->recreatePipelines();
if (m2Renderer) m2Renderer->recreatePipelines();
if (characterRenderer) characterRenderer->recreatePipelines();
LOG_WARNING("MSAA: recreating quest/weather/sky pipelines");
if (questMarkerRenderer) questMarkerRenderer->recreatePipelines();
if (weather) weather->recreatePipelines();
if (lightning) lightning->recreatePipelines();
@ -772,6 +775,7 @@ void Renderer::applyMsaaChange() {
if (auto* lf = skySystem->getLensFlare()) lf->recreatePipelines();
}
LOG_WARNING("MSAA: recreating minimap/postprocess/imgui");
if (minimap) minimap->recreatePipelines();
// Selection circle + overlay + FSR use lazy init, just destroy them
@ -800,7 +804,7 @@ void Renderer::applyMsaaChange() {
};
ImGui_ImplVulkan_Init(&initInfo);
LOG_INFO("MSAA change complete");
LOG_WARNING("MSAA change complete");
}
void Renderer::beginFrame() {