VKResourceSet.hpp

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//
//  CeresEngine - A game development framework
//
//  Created by Rogiel Sulzbach.
//  Copyright (c) 2018-2022 Rogiel Sulzbach. All rights reserved.
//
 
#pragma once
 
#include "VKCommon.hpp"
 
#include "CeresEngine/DataTypes.hpp"
#include "CeresEngine/Macros.hpp"
 
#include "CeresEngine/Foundation/Allocator.hpp"
#include "CeresEngine/Foundation/Container/SmallVector.hpp"
 
#include "CeresEngine/RenderAPI/GPUResourceSet.hpp"
 
namespace CeresEngine {
 
    class VKPipelineLayout;
    class VKCommandBuffer;
 
    struct VKWriteDescriptorContainer final {
        VKWriteDescriptorContainer();
        explicit VKWriteDescriptorContainer(std::size_t numResourceViewsMax);
 
        VKWriteDescriptorContainer(const VKWriteDescriptorContainer&) = default;
        VKWriteDescriptorContainer& operator=(const VKWriteDescriptorContainer&) = default;
        VKWriteDescriptorContainer(VKWriteDescriptorContainer&&) = default;
        VKWriteDescriptorContainer& operator=(VKWriteDescriptorContainer&&) = default;
 
        VkDescriptorBufferInfo* nextBufferInfo();
        VkDescriptorImageInfo* nextImageInfo();
        VkWriteDescriptorSet* nextWriteDescriptor();
        void reset();
 
        VKVector<VkDescriptorBufferInfo> bufferInfos;
        UInt32 numBufferInfos = 0;
 
        VKVector<VkDescriptorImageInfo> imageInfos;
        UInt32 numImageInfos = 0;
 
        VKVector<VkWriteDescriptorSet> writeDescriptors;
        UInt32 numWriteDescriptors = 0;
    };
 
    class VKResourceSet final : public GPUResourceSet, public VKDeviceObject<VKResourceSet, GPUResourceSet> {
    private:
        VkDescriptorSet mDescriptorSet = {VK_NULL_HANDLE};
 
        GPUResourceSetDescriptor mDescriptor;
 
        VKPipelineLayoutPtr mPipelineLayout;
 
        SmallVector<VKImageViewPtr, 16, VKAllocator> mImageViews{gVKAllocator()};
 
        UInt32 mSet;
 
    public:
        VKResourceSet(VKPipelineLayout& pipelineLayout, const GPUResourceSetDescriptor& descriptor, UInt32 set = 0);
        ~VKResourceSet() final;
 
        void destroy() noexcept final;
 
        using Allocator = VKObjectAllocator;
 
        static Allocator& getAllocator() noexcept;
 
        static void* operator new(size_t size) noexcept;
 
        static void operator delete(void* p, std::size_t sz) noexcept;
 
        [[nodiscard]] CE_EXPLICIT_FALSE operator VkDescriptorSet() const noexcept { return mDescriptorSet; }
    };
 
} // namespace CeresEngine