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renderer: reduce synchronization and allocation overhead

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Performance changes from #1495:

- Sync changed BDA ranges instead of scanning all mappings.
- Let VMA suballocate BDA buffers.
- Remove the renderer lock from presentation.
- Keep compatible pipeline caches across builds.
- Fold masked shifts that always produce zero.
This commit is contained in:
shadowbeat070
2026-10-16 16:58:07 +02:00
committed by nmzik
parent 4c6be6cd1d
commit d58aefde49
12 changed files with 277 additions and 38 deletions
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src/graphics/presentation/window/swapchain.cpp
+12 -13
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@@ -945,7 +945,6 @@ Presenter::Frame& Presenter::PrepareBlankFrame(uint32_t width, uint32_t height,
auto* frame = m_impl->frames.Acquire({width, height}, format);
frame->hdr = false;
frame->blank = true;
Common::LockGuard render_lock(m_impl->renderer.GetMutex());
frame->Configure(m_impl->window.graphic_ctx, {width, height}, format);
vk::ClearColorValue clear {};
clear.float32[3] = opaque ? 1.0f : 0.0f;
@@ -953,6 +952,7 @@ Presenter::Frame& Presenter::PrepareBlankFrame(uint32_t width, uint32_t height,
EXIT_IF(producer->IsInvalid());
frame->Clear(*producer, clear);
} else {
Common::LockGuard lock(m_impl->present_mutex);
auto& command = m_impl->present_scheduler.BeginCommand();
frame->Clear(command, clear);
frame->present_tick = m_impl->present_scheduler.Submit();
@@ -1036,18 +1036,17 @@ void Presenter::Impl::Present() {
RecoverSwapchain(status);
continue;
}
{
Common::LockGuard render_lock(renderer.GetMutex());
auto& command = present_scheduler.BeginCommand();
const bool draw_system_overlay =
overlay_visual.active && swapchain.PrepareSystemOverlay();
swapchain.RecordPresentCommands(command, layers[0].frame, layers[1],
draw_system_overlay);
const auto tick = swapchain.Submit(present_scheduler);
for (const auto& layer: layers) {
if (layer.frame != nullptr) {
layer.frame->present_tick = tick;
}
// present_mutex owns the prepared frames and this scheduler. Only queue submission
// is shared with rendering, and it has its own queue_mutex.
auto& command = present_scheduler.BeginCommand();
const bool draw_system_overlay =
overlay_visual.active && swapchain.PrepareSystemOverlay();
swapchain.RecordPresentCommands(command, layers[0].frame, layers[1],
draw_system_overlay);
const auto tick = swapchain.Submit(present_scheduler);
for (const auto& layer: layers) {
if (layer.frame != nullptr) {
layer.frame->present_tick = tick;
}
}
status = swapchain.Present();