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76 lines
2.4 KiB
C++
76 lines
2.4 KiB
C++
#ifndef DOWNSAMPLE_HPP
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#define DOWNSAMPLE_HPP
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#include "pool/shaderpool.hpp"
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#include "core/buffer.hpp"
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#include "core/commandbuffer.hpp"
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#include "core/descriptorpool.hpp"
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#include "core/descriptorset.hpp"
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#include "core/image.hpp"
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#include "core/pipeline.hpp"
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#include "core/shadermodule.hpp"
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#include "core/device.hpp"
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#include <array>
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namespace LSFG::Shaderchains {
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///
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/// Downsample shader.
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///
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/// Takes an 8-bit RGBA image and downsamples it into 7x 8-bit R images.
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///
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class Downsample {
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public:
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Downsample() = default;
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///
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/// Initialize the shaderchain.
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///
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/// @param device The Vulkan device to create the resources on.
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/// @param shaderpool The shader pool to use for shader modules.
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/// @param pool The descriptor pool to allocate in.
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/// @param inImg_0 The next full image to downsample (when fc % 2 == 0)
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/// @param inImg_1 The next full image to downsample (when fc % 2 == 1)
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/// @param genc Amount of frames to generate.
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///
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/// @throws LSFG::vulkan_error if resource creation fails.
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///
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Downsample(const Core::Device& device, Pool::ShaderPool& shaderpool,
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const Core::DescriptorPool& pool,
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Core::Image inImg_0, Core::Image inImg_1,
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size_t genc);
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///
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/// Dispatch the shaderchain.
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///
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/// @param buf The command buffer to use for dispatching.
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/// @param fc The frame count, used to select the input image.
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///
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/// @throws std::logic_error if the command buffer is not recording.
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///
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void Dispatch(const Core::CommandBuffer& buf, uint64_t fc);
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/// Get the output images.
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[[nodiscard]] const auto& getOutImages() const { return this->outImgs; }
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/// Trivially copyable, moveable and destructible
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Downsample(const Downsample&) noexcept = default;
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Downsample& operator=(const Downsample&) noexcept = default;
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Downsample(Downsample&&) noexcept = default;
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Downsample& operator=(Downsample&&) noexcept = default;
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~Downsample() = default;
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private:
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Core::ShaderModule shaderModule;
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Core::Pipeline pipeline;
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std::array<Core::DescriptorSet, 2> descriptorSets; // one for each input image
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Core::Buffer buffer;
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Core::Image inImg_0, inImg_1;
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std::array<Core::Image, 7> outImgs;
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};
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}
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#endif // DOWNSAMPLE_HPP
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