vk_present_window: Match guest swapchain size to vulkan image count

* Less latency and fixes crashes that were caused by images being deleted before free

src/video_core/renderer_vulkan/vk_present_window.cpp

@@ -109,7 +109,9 @@ PresentWindow::PresentWindow(Frontend::EmuWindow& emu_window_, const Instance& i
       use_present_thread{Settings::values.async_presentation.GetValue()},
       last_render_surface{emu_window.GetWindowInfo().render_surface} {
 
+    const u32 num_images = swapchain.GetImageCount();
     const vk::Device device = instance.GetDevice();
+
     const vk::CommandPoolCreateInfo pool_info = {
         .flags = vk::CommandPoolCreateFlagBits::eResetCommandBuffer |
                  vk::CommandPoolCreateFlagBits::eTransient,
@@ -120,11 +122,12 @@ PresentWindow::PresentWindow(Frontend::EmuWindow& emu_window_, const Instance& i
     const vk::CommandBufferAllocateInfo alloc_info = {
         .commandPool = command_pool,
         .level = vk::CommandBufferLevel::ePrimary,
-        .commandBufferCount = SWAP_CHAIN_SIZE,
+        .commandBufferCount = num_images,
     };
     const std::vector command_buffers = device.allocateCommandBuffers(alloc_info);
 
-    for (u32 i = 0; i < SWAP_CHAIN_SIZE; i++) {
+    swap_chain.resize(num_images);
+    for (u32 i = 0; i < num_images; i++) {
         Frame& frame = swap_chain[i];
         frame.cmdbuf = command_buffers[i];
         frame.render_ready = device.createSemaphore({});

src/video_core/renderer_vulkan/vk_present_window.h

@@ -35,8 +35,6 @@ struct Frame {
 };
 
 class PresentWindow final {
-    static constexpr std::size_t SWAP_CHAIN_SIZE = 6;
-
 public:
     explicit PresentWindow(Frontend::EmuWindow& emu_window, const Instance& instance,
                            Scheduler& scheduler);
@@ -81,7 +79,7 @@ private:
     vk::CommandPool command_pool;
     vk::Queue graphics_queue;
     vk::RenderPass present_renderpass;
-    std::array<Frame, SWAP_CHAIN_SIZE> swap_chain{};
+    std::vector<Frame> swap_chain;
     std::queue<Frame*> free_queue;
     std::queue<Frame*> present_queue;
     std::condition_variable free_cv;

src/video_core/renderer_vulkan/vk_scheduler.cpp

@@ -44,8 +44,7 @@ void Scheduler::CommandChunk::ExecuteAll(vk::CommandBuffer cmdbuf) {
 
 Scheduler::Scheduler(const Instance& instance, RenderpassCache& renderpass_cache)
     : renderpass_cache{renderpass_cache}, master_semaphore{MakeMasterSemaphore(instance)},
-      command_pool{instance, master_semaphore.get()}, use_worker_thread{
+      command_pool{instance, master_semaphore.get()}, use_worker_thread{true} {
-                                                          !Settings::values.renderer_debug} {
     AllocateWorkerCommandBuffers();
     if (use_worker_thread) {
         AcquireNewChunk();

src/video_core/renderer_vulkan/vk_texture_runtime.cpp

@@ -275,7 +275,7 @@ VideoCore::StagingData TextureRuntime::FindStaging(u32 size, bool upload) {
 }
 
 u32 TextureRuntime::RemoveThreshold() {
-    return num_swapchain_images + 2;
+    return num_swapchain_images;
 }
 
 void TextureRuntime::Finish() {