lsfg-vk/lsfg-vk-gen/include/shaderchains/beta.hpp
2025-07-04 13:32:41 +02:00

88 lines
3 KiB
C++

#ifndef BETA_HPP
#define BETA_HPP
#include "pool/shaderpool.hpp"
#include "core/buffer.hpp"
#include "core/commandbuffer.hpp"
#include "core/descriptorpool.hpp"
#include "core/descriptorset.hpp"
#include "core/image.hpp"
#include "core/pipeline.hpp"
#include "core/shadermodule.hpp"
#include "core/device.hpp"
#include <array>
namespace LSFG::Shaderchains {
///
/// Shader chain beta.
///
/// Takes eight temporal 8-bit RGBA images, as well as the four output images from alpha,
/// and creates six 8-bit R images, halving in resolution each step.
///
class Beta {
public:
Beta() = default;
///
/// Initialize the shaderchain.
///
/// @param device The Vulkan device to create the resources on.
/// @param shaderpool The shader pool to use for shader modules.
/// @param pool The descriptor pool to allocate in.
/// @param inImgs_0 The next input images to process (when fc % 3 == 0)
/// @param inImgs_1 The prev input images to process (when fc % 3 == 0)
/// @param inImgs_2 The prev prev input images to process (when fc % 3 == 0)
/// @param genc Amount of frames to generate.
///
/// @throws LSFG::vulkan_error if resource creation fails.
///
Beta(const Core::Device& device, Pool::ShaderPool& shaderpool,
const Core::DescriptorPool& pool,
std::array<Core::Image, 4> inImgs_0,
std::array<Core::Image, 4> inImgs_1,
std::array<Core::Image, 4> inImgs_2,
size_t genc);
///
/// Dispatch the shaderchain.
///
/// @param buf The command buffer to use for dispatching.
/// @param fc The frame count, used to select the input images.
/// @param pass The pass number
///
/// @throws std::logic_error if the command buffer is not recording.
///
void Dispatch(const Core::CommandBuffer& buf, uint64_t fc, uint64_t pass);
/// Get the output images.
[[nodiscard]] const auto& getOutImages() const { return this->outImgs; }
/// Trivially copyable, moveable and destructible
Beta(const Beta&) noexcept = default;
Beta& operator=(const Beta&) noexcept = default;
Beta(Beta&&) noexcept = default;
Beta& operator=(Beta&&) noexcept = default;
~Beta() = default;
private:
std::array<Core::ShaderModule, 5> shaderModules;
std::array<Core::Pipeline, 5> pipelines;
std::array<Core::DescriptorSet, 3> descriptorSets; // first shader has special logic
std::array<Core::DescriptorSet, 3> specialDescriptorSets;
std::vector<Core::DescriptorSet> nDescriptorSets;
std::vector<Core::Buffer> buffers;
std::array<Core::Image, 4> inImgs_0;
std::array<Core::Image, 4> inImgs_1;
std::array<Core::Image, 4> inImgs_2;
std::array<Core::Image, 2> tempImgs1;
std::array<Core::Image, 2> tempImgs2;
std::array<Core::Image, 6> outImgs;
};
}
#endif // BETA_HPP