mirror of
https://github.com/PancakeTAS/lsfg-vk.git
synced 2025-10-30 07:01:10 +00:00
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
#ifndef DOWNSAMPLE_HPP
|
|
#define DOWNSAMPLE_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 {
|
|
|
|
///
|
|
/// Downsample shader.
|
|
///
|
|
/// Takes an 8-bit RGBA image and downsamples it into 7x 8-bit R images.
|
|
///
|
|
class Downsample {
|
|
public:
|
|
Downsample() = default;
|
|
|
|
///
|
|
/// Initialize the shaderchain.
|
|
///
|
|
/// @param device The Vulkan device to create the resources on.
|
|
/// @param pool The descriptor pool to allocate in.
|
|
/// @param inImg_0 The next full image to downsample (when fc % 2 == 0)
|
|
/// @param inImg_1 The next full image to downsample (when fc % 2 == 1)
|
|
///
|
|
/// @throws LSFG::vulkan_error if resource creation fails.
|
|
///
|
|
Downsample(const Core::Device& device, const Core::DescriptorPool& pool,
|
|
Core::Image inImg_0, Core::Image inImg_1);
|
|
|
|
///
|
|
/// Dispatch the shaderchain.
|
|
///
|
|
/// @param buf The command buffer to use for dispatching.
|
|
/// @param fc The frame count, used to select the input image.
|
|
///
|
|
/// @throws std::logic_error if the command buffer is not recording.
|
|
///
|
|
void Dispatch(const Core::CommandBuffer& buf, uint64_t fc);
|
|
|
|
/// Get the output images.
|
|
[[nodiscard]] const auto& getOutImages() const { return this->outImgs; }
|
|
|
|
/// Trivially copyable, moveable and destructible
|
|
Downsample(const Downsample&) noexcept = default;
|
|
Downsample& operator=(const Downsample&) noexcept = default;
|
|
Downsample(Downsample&&) noexcept = default;
|
|
Downsample& operator=(Downsample&&) noexcept = default;
|
|
~Downsample() = default;
|
|
private:
|
|
Core::ShaderModule shaderModule;
|
|
Core::Pipeline pipeline;
|
|
std::array<Core::DescriptorSet, 2> descriptorSets; // one for each input image
|
|
Core::Buffer buffer;
|
|
|
|
Core::Image inImg_0, inImg_1;
|
|
|
|
std::array<Core::Image, 7> outImgs;
|
|
};
|
|
|
|
}
|
|
|
|
#endif // DOWNSAMPLE_HPP
|