QueueManager.h

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* libscopehal                                                                                                          *
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#ifndef QueueManager_h
#define QueueManager_h
 
#include <map>
#include <memory>
#include <mutex>
#include <tuple>
#include <vector>
#include <vulkan/vulkan_raii.hpp>
 
#include "QueueWrapper.h"
#include "QueueHandle.h"
 
class QueueLock;
 
class QueueLock
{
public:
    QueueLock(std::shared_ptr<QueueHandle> handle)
    : m_lock(handle->GetQueue()->m_mutex)
    , m_handle(handle)
    { handle->_waitFence(); }
 
    vk::raii::Queue& operator*()
    { return *(m_handle->GetQueue()->GetQueue()); }
 
public:
    //non-copyable
    QueueLock(QueueLock const&) = delete;
    QueueLock& operator=(QueueLock const&) = delete;
 
protected:
    const std::lock_guard<std::recursive_mutex> m_lock;
    std::shared_ptr<QueueHandle> m_handle;
};
 
 
class QueueManager
{
public:
    QueueManager(vk::raii::PhysicalDevice* phys, std::shared_ptr<vk::raii::Device> device);
 
    enum QueuePoolID
    {
        QUEUE_POOL_RENDER,
 
        QUEUE_POOL_RASTERIZE,
 
        QUEUE_POOL_DRIVER,
 
        QUEUE_POOL_FILTER,
 
        QUEUE_POOL_TRANSFER,
 
        QUEUE_POOL_MISC
    };
 
    std::shared_ptr<QueueHandle> GetComputeQueue(const std::string& name)
    { return GetQueueWithFlags(vk::QueueFlagBits::eCompute | vk::QueueFlagBits::eTransfer, name); }
 
    std::shared_ptr<QueueHandle> GetRenderQueue(const std::string& name)
    { return GetQueueWithFlags(vk::QueueFlagBits::eGraphics | vk::QueueFlagBits::eTransfer, name); }
 
    std::shared_ptr<QueueHandle> GetTransferQueue(const std::string& name)
    { return GetQueueWithFlags(vk::QueueFlagBits::eCompute | vk::QueueFlagBits::eTransfer, name); }
 
    std::shared_ptr<QueueHandle> GetQueueWithFlags(vk::QueueFlags flags, std::string name);
 
public:
    //non-copyable
    QueueManager(QueueManager const&) = delete;
    QueueManager& operator=(QueueManager const&) = delete;
 
protected:
    vk::raii::PhysicalDevice* m_phys;
    std::shared_ptr<vk::raii::Device> m_device;
 
    std::mutex m_mutex;
 
    struct QueueInfo
    {
        size_t Family;
        size_t Index;
        vk::QueueFlags Flags;
        std::shared_ptr<QueueWrapper> Handle;
    };
 
    std::vector<QueueInfo> m_queues;
 
    std::map<QueuePoolID, std::vector<QueueInfo> > m_pools;
 
    //Names of pools
    std::map<QueuePoolID, std::string> m_poolNames;
};
 
#endif