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98 lines
3.7 KiB
C++
98 lines
3.7 KiB
C++
#ifndef GAMMA_HPP
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#define GAMMA_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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/// Shader chain gamma.
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///
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/// Takes four temporal 8-bit RGBA images, as well as four output images from a given alpha stage.
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/// Also takes the corresponding (smallest if oob) output image from the beta pass.
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/// On non-first passes optionally takes 2 output images from previous gamma pass.
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/// Creates two images, one at twice the resolution of input images and the other with R16G16B16A16_FLOAT.
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///
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class Gamma {
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public:
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Gamma() = 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 pool The descriptor pool to allocate in.
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/// @param inImgs1_0 The next input images to process (when fc % 3 == 0).
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/// @param inImgs1_1 The prev input images to process (when fc % 3 == 0).
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/// @param inImgs1_2 Initially unprocessed prev prev input images (when fc % 3 == 0).
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/// @param inImg2 The second input image to process, next step up the resolution.
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/// @param optImg1 An optional additional input from the previous pass.
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/// @param optImg2 An optional additional input image for processing non-first passes.
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/// @param outExtent The extent of the output image.
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///
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/// @throws LSFG::vulkan_error if resource creation fails.
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///
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Gamma(const Core::Device& device, const Core::DescriptorPool& pool,
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std::array<Core::Image, 4> inImgs1_0,
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std::array<Core::Image, 4> inImgs1_1,
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std::array<Core::Image, 4> inImgs1_2,
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Core::Image inImg2,
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std::optional<Core::Image> optImg1,
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std::optional<Core::Image> optImg2,
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VkExtent2D outExtent);
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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 images.
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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 first output image.
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[[nodiscard]] const auto& getOutImage1() const { return this->outImg1; }
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/// Get the second output image.
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[[nodiscard]] const auto& getOutImage2() const { return this->outImg2; }
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/// Trivially copyable, moveable and destructible
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Gamma(const Gamma&) noexcept = default;
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Gamma& operator=(const Gamma&) noexcept = default;
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Gamma(Gamma&&) noexcept = default;
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Gamma& operator=(Gamma&&) noexcept = default;
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~Gamma() = default;
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private:
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std::array<Core::ShaderModule, 6> shaderModules;
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std::array<Core::Pipeline, 6> pipelines;
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std::array<Core::DescriptorSet, 5> descriptorSets; // first shader has special logic
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std::array<Core::DescriptorSet, 3> specialDescriptorSets;
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Core::Buffer buffer;
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std::array<Core::Image, 4> inImgs1_0;
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std::array<Core::Image, 4> inImgs1_1;
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std::array<Core::Image, 4> inImgs1_2;
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Core::Image inImg2;
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Core::Image optImg1; // specified or created black
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std::optional<Core::Image> optImg2;
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std::array<Core::Image, 4> tempImgs1;
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std::array<Core::Image, 4> tempImgs2;
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Core::Image whiteImg;
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Core::Image outImg1;
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Core::Image outImg2;
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};
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}
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#endif // GAMMA_HPP
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