lsfg-vk/framegen/v3.1p_src/shaders/gamma.cpp
2025-07-25 19:42:02 +02:00

189 lines
7.9 KiB
C++

#include <volk.h>
#include <vulkan/vulkan_core.h>
#include "v3_1p/shaders/gamma.hpp"
#include "common/utils.hpp"
#include "core/commandbuffer.hpp"
#include "core/image.hpp"
#include <array>
#include <optional>
#include <utility>
#include <cstddef>
#include <cstdint>
using namespace LSFG_3_1P::Shaders;
Gamma::Gamma(Vulkan& vk, std::array<std::array<Core::Image, 2>, 3> inImgs1,
Core::Image inImg2,
std::optional<Core::Image> optImg)
: inImgs1(std::move(inImgs1)), inImg2(std::move(inImg2)),
optImg(std::move(optImg)) {
// create resources
this->shaderModules = {{
vk.shaders.getShader(vk.device, "p_gamma[0]",
{ { 1 , VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER },
{ 2, VK_DESCRIPTOR_TYPE_SAMPLER },
{ 5, VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE },
{ 3, VK_DESCRIPTOR_TYPE_STORAGE_IMAGE } }),
vk.shaders.getShader(vk.device, "p_gamma[1]",
{ { 1, VK_DESCRIPTOR_TYPE_SAMPLER },
{ 3, VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE },
{ 2, VK_DESCRIPTOR_TYPE_STORAGE_IMAGE } }),
vk.shaders.getShader(vk.device, "p_gamma[2]",
{ { 1, VK_DESCRIPTOR_TYPE_SAMPLER },
{ 2, VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE },
{ 2, VK_DESCRIPTOR_TYPE_STORAGE_IMAGE } }),
vk.shaders.getShader(vk.device, "p_gamma[3]",
{ { 1, VK_DESCRIPTOR_TYPE_SAMPLER },
{ 2, VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE },
{ 2, VK_DESCRIPTOR_TYPE_STORAGE_IMAGE } }),
vk.shaders.getShader(vk.device, "p_gamma[4]",
{ { 1, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER },
{ 2, VK_DESCRIPTOR_TYPE_SAMPLER },
{ 4, VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE },
{ 1, VK_DESCRIPTOR_TYPE_STORAGE_IMAGE } })
}};
this->pipelines = {{
vk.shaders.getPipeline(vk.device, "p_gamma[0]"),
vk.shaders.getPipeline(vk.device, "p_gamma[1]"),
vk.shaders.getPipeline(vk.device, "p_gamma[2]"),
vk.shaders.getPipeline(vk.device, "p_gamma[3]"),
vk.shaders.getPipeline(vk.device, "p_gamma[4]")
}};
this->samplers.at(0) = vk.resources.getSampler(vk.device);
this->samplers.at(1) = vk.resources.getSampler(vk.device,
VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_BORDER, VK_COMPARE_OP_NEVER, true);
this->samplers.at(2) = vk.resources.getSampler(vk.device,
VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE, VK_COMPARE_OP_ALWAYS, false);
// create internal images/outputs
const VkExtent2D extent = this->inImgs1.at(0).at(0).getExtent();
for (size_t i = 0; i < 3; i++)
this->tempImgs1.at(i) = Core::Image(vk.device, extent);
for (size_t i = 0; i < 2; i++)
this->tempImgs2.at(i) = Core::Image(vk.device, extent);
this->outImg = Core::Image(vk.device,
{ extent.width, extent.height },
VK_FORMAT_R16G16B16A16_SFLOAT);
// hook up shaders
for (size_t pass_idx = 0; pass_idx < vk.generationCount; pass_idx++) {
auto& pass = this->passes.emplace_back();
pass.buffer = vk.resources.getBuffer(vk.device,
static_cast<float>(pass_idx + 1) / static_cast<float>(vk.generationCount + 1),
!this->optImg.has_value());
for (size_t i = 0; i < 3; i++) {
pass.firstDescriptorSet.at(i) = Core::DescriptorSet(vk.device, vk.descriptorPool,
this->shaderModules.at(0));
pass.firstDescriptorSet.at(i).update(vk.device)
.add(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, pass.buffer)
.add(VK_DESCRIPTOR_TYPE_SAMPLER, this->samplers.at(1))
.add(VK_DESCRIPTOR_TYPE_SAMPLER, this->samplers.at(2))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->inImgs1.at((i + 2) % 3))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->inImgs1.at(i % 3))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->optImg)
.add(VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, this->tempImgs1)
.build();
}
pass.descriptorSets.at(0) = Core::DescriptorSet(vk.device, vk.descriptorPool,
this->shaderModules.at(1));
pass.descriptorSets.at(0).update(vk.device)
.add(VK_DESCRIPTOR_TYPE_SAMPLER, this->samplers.at(0))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->tempImgs1)
.add(VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, this->tempImgs2)
.build();
pass.descriptorSets.at(1) = Core::DescriptorSet(vk.device, vk.descriptorPool,
this->shaderModules.at(2));
pass.descriptorSets.at(1).update(vk.device)
.add(VK_DESCRIPTOR_TYPE_SAMPLER, this->samplers.at(0))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->tempImgs2)
.add(VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, this->tempImgs1.at(0))
.add(VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, this->tempImgs1.at(1))
.build();
pass.descriptorSets.at(2) = Core::DescriptorSet(vk.device, vk.descriptorPool,
this->shaderModules.at(3));
pass.descriptorSets.at(2).update(vk.device)
.add(VK_DESCRIPTOR_TYPE_SAMPLER, this->samplers.at(0))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->tempImgs1.at(0))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->tempImgs1.at(1))
.add(VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, this->tempImgs2)
.build();
pass.descriptorSets.at(3) = Core::DescriptorSet(vk.device, vk.descriptorPool,
this->shaderModules.at(4));
pass.descriptorSets.at(3).update(vk.device)
.add(VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, pass.buffer)
.add(VK_DESCRIPTOR_TYPE_SAMPLER, this->samplers.at(0))
.add(VK_DESCRIPTOR_TYPE_SAMPLER, this->samplers.at(2))
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->tempImgs2)
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->optImg)
.add(VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, this->inImg2)
.add(VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, this->outImg)
.build();
}
}
void Gamma::Dispatch(const Core::CommandBuffer& buf, uint64_t frameCount, uint64_t pass_idx) {
auto& pass = this->passes.at(pass_idx);
// first shader
const auto extent = this->tempImgs1.at(0).getExtent();
const uint32_t threadsX = (extent.width + 7) >> 3;
const uint32_t threadsY = (extent.height + 7) >> 3;
Utils::BarrierBuilder(buf)
.addW2R(this->inImgs1.at((frameCount + 2) % 3))
.addW2R(this->inImgs1.at(frameCount % 3))
.addW2R(this->optImg)
.addR2W(this->tempImgs1)
.build();
this->pipelines.at(0).bind(buf);
pass.firstDescriptorSet.at(frameCount % 3).bind(buf, this->pipelines.at(0));
buf.dispatch(threadsX, threadsY, 1);
// second shader
Utils::BarrierBuilder(buf)
.addW2R(this->tempImgs1)
.addR2W(this->tempImgs2)
.build();
this->pipelines.at(1).bind(buf);
pass.descriptorSets.at(0).bind(buf, this->pipelines.at(1));
buf.dispatch(threadsX, threadsY, 1);
// third shader
Utils::BarrierBuilder(buf)
.addW2R(this->tempImgs2)
.addR2W(this->tempImgs1.at(0))
.addR2W(this->tempImgs1.at(1))
.build();
this->pipelines.at(2).bind(buf);
pass.descriptorSets.at(1).bind(buf, this->pipelines.at(2));
buf.dispatch(threadsX, threadsY, 1);
// fourth shader
Utils::BarrierBuilder(buf)
.addW2R(this->tempImgs1.at(0))
.addW2R(this->tempImgs1.at(1))
.addR2W(this->tempImgs2)
.build();
this->pipelines.at(3).bind(buf);
pass.descriptorSets.at(2).bind(buf, this->pipelines.at(3));
buf.dispatch(threadsX, threadsY, 1);
// fifth shader
Utils::BarrierBuilder(buf)
.addW2R(this->tempImgs2)
.addW2R(this->optImg)
.addW2R(this->inImg2)
.addR2W(this->outImg)
.build();
this->pipelines.at(4).bind(buf);
pass.descriptorSets.at(3).bind(buf, this->pipelines.at(4));
buf.dispatch(threadsX, threadsY, 1);
}