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https://github.com/wheremyfoodat/Panda3DS.git
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72c77e41b4
A utility class from a personal project for managing a heap of descriptors of a particular layout. Allows the display graphics pipeline to be successfully created, satisfying its descriptor layout issues.
49 lines
No EOL
1.6 KiB
C++
49 lines
No EOL
1.6 KiB
C++
#pragma once
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#include <optional>
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#include <span>
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#include "helpers.hpp"
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#include "vk_api.hpp"
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namespace Vulkan {
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// Implements a basic heap of descriptor sets given a layout of particular
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// bindings. Create a descriptor set by providing a list of bindings and it will
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// automatically create both the pool, layout, and maintail a heap of descriptor
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// sets. Descriptor sets will be reused and recycled. Assume that newly
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// allocated descriptor sets are in an undefined state.
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class DescriptorHeap {
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private:
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const vk::Device device;
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vk::UniqueDescriptorPool descriptorPool;
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vk::UniqueDescriptorSetLayout descriptorSetLayout;
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std::vector<vk::UniqueDescriptorSet> descriptorSets;
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std::vector<vk::DescriptorSetLayoutBinding> bindings;
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std::vector<bool> allocationMap;
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explicit DescriptorHeap(vk::Device device);
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public:
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~DescriptorHeap() = default;
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DescriptorHeap(DescriptorHeap&&) = default;
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const vk::DescriptorPool& getDescriptorPool() const { return descriptorPool.get(); };
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const vk::DescriptorSetLayout& getDescriptorSetLayout() const { return descriptorSetLayout.get(); };
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const std::span<const vk::UniqueDescriptorSet> getDescriptorSets() const { return descriptorSets; };
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std::span<const vk::DescriptorSetLayoutBinding> getBindings() const { return bindings; };
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std::optional<vk::DescriptorSet> allocateDescriptorSet();
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bool freeDescriptorSet(vk::DescriptorSet set);
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static std::optional<DescriptorHeap> create(
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vk::Device device, std::span<const vk::DescriptorSetLayoutBinding> bindings, u16 descriptorHeapCount = 1024
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);
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};
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} // namespace Vulkan
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