vk::Queue: Lazily construct Renderers

src/Vulkan/VkQueue.cpp

@@ -74,9 +74,9 @@ VkSubmitInfo* DeepCopySubmitInfo(uint32_t submitCount, const VkSubmitInfo* pSubm
 namespace vk
 {
 
-Queue::Queue(Device* device) : renderer(device)
+Queue::Queue(Device* device) : device(device)
 {
-	queueThread = std::thread(TaskLoop, this);
+	queueThread = std::thread(&Queue::taskLoop, this);
 }
 
 Queue::~Queue()
@@ -110,13 +110,13 @@ VkResult Queue::submit(uint32_t submitCount, const VkSubmitInfo* pSubmits, Fence
 	return VK_SUCCESS;
 }
 
-void Queue::TaskLoop(vk::Queue* queue)
-{
-	queue->taskLoop();
-}
-
 void Queue::submitQueue(const Task& task)
 {
+	if (renderer == nullptr)
+	{
+		renderer.reset(new sw::Renderer(device));
+	}
+
 	for(uint32_t i = 0; i < task.submitCount; i++)
 	{
 		auto& submitInfo = task.pSubmits[i];
@@ -127,7 +127,7 @@ void Queue::submitQueue(const Task& task)
 
 		{
 			CommandBuffer::ExecutionState executionState;
-			executionState.renderer = &renderer;
+			executionState.renderer = renderer.get();
 			executionState.events = task.events;
 			for(uint32_t j = 0; j < submitInfo.commandBufferCount; j++)
 			{
@@ -150,7 +150,7 @@ void Queue::submitQueue(const Task& task)
 	{
 		// TODO: fix renderer signaling so that work submitted separately from (but before) a fence
 		// is guaranteed complete by the time the fence signals.
-		renderer.synchronize();
+		renderer->synchronize();
 		task.events->finish();
 	}
 }

src/Vulkan/VkQueue.hpp

@@ -69,7 +69,8 @@ private:
 	void garbageCollect();
 	void submitQueue(const Task& task);
 
-	sw::Renderer renderer;
+	Device* device;
+	std::unique_ptr<sw::Renderer> renderer;
 	sw::Chan<Task> pending;
 	sw::Chan<VkSubmitInfo*> toDelete;
 	std::thread queueThread;