Refactor GPU tick waiting and barrier handling

src/video_core/renderer_vulkan/vk_scheduler.cpp

@@ -347,7 +347,7 @@ void Scheduler::EndRenderPass()
         Record([num_images = num_renderpass_images,
                        images = renderpass_images,
                        ranges = renderpass_image_ranges](vk::CommandBuffer cmdbuf) {
-            std::array<VkImageMemoryBarrier, 9> barriers;
+            std::vector<VkImageMemoryBarrier> barriers(num_images);
             VkPipelineStageFlags src_stages = 0;
             for (size_t i = 0; i < num_images; ++i) {
                 const VkImageSubresourceRange& range = ranges[i];

src/video_core/renderer_vulkan/vk_scheduler.h

@@ -113,7 +113,7 @@ public:
 
     /// Waits for the given tick to trigger on the GPU.
     void Wait(u64 tick) {
-        if (tick >= master_semaphore->CurrentTick()) {
+        if (tick > master_semaphore->CurrentTick() && !chunk->Empty()) {
             // Make sure we are not waiting for the current tick without signalling
             Flush();
         }

src/video_core/renderer_vulkan/vk_swapchain.cpp

@@ -194,7 +194,10 @@ bool Swapchain::AcquireNextImage() {
         break;
     }
 
-    scheduler.Wait(resource_ticks[image_index]);
+    if (resource_ticks[image_index] != 0 && !scheduler.IsFree(resource_ticks[image_index])) {
+        scheduler.Wait(resource_ticks[image_index]);
+    }
+
     resource_ticks[image_index] = scheduler.CurrentTick();
 
     return is_suboptimal || is_outdated;