mirror of
https://github.com/seekrs/MacroLibX.git
synced 2026-01-10 22:23:34 +00:00
303 lines
10 KiB
C++
303 lines
10 KiB
C++
#include <PreCompiled.h>
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#include <Renderer/Image.h>
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#include <Renderer/Enums.h>
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#include <Renderer/Buffer.h>
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#include <Renderer/Descriptor.h>
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#include <Renderer/RenderCore.h>
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#include <Maths/Constants.h>
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namespace mlx
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{
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constexpr std::size_t MAX_SETS_PER_POOL = 1024;
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void TransitionImageToCorrectLayout(Image& image, VkCommandBuffer cmd)
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{
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MLX_PROFILE_FUNCTION();
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if(!image.IsInit())
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return;
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if(image.GetType() == ImageType::Color)
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image.TransitionLayout(VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL, cmd);
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else
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Error("Vulkan: cannot transition descriptor image layout, unkown image type");
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}
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void DescriptorPool::Init() noexcept
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{
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MLX_PROFILE_FUNCTION();
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VkDescriptorPoolSize pool_sizes[] = {
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{ VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, MAX_FRAMES_IN_FLIGHT * MAX_SETS_PER_POOL },
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{ VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, MAX_FRAMES_IN_FLIGHT * MAX_SETS_PER_POOL },
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{ VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, MAX_FRAMES_IN_FLIGHT * MAX_SETS_PER_POOL }
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};
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VkDescriptorPoolCreateInfo pool_info{};
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pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
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pool_info.poolSizeCount = sizeof(pool_sizes) / sizeof(pool_sizes[0]);
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pool_info.pPoolSizes = pool_sizes;
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pool_info.maxSets = MAX_FRAMES_IN_FLIGHT * MAX_SETS_PER_POOL;
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pool_info.flags = 0;
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kvfCheckVk(RenderCore::Get().vkCreateDescriptorPool(RenderCore::Get().GetDevice(), &pool_info, nullptr, &m_pool));
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DebugLog("Vulkan: created new descriptor pool");
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}
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void DescriptorPool::Destroy() noexcept
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{
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MLX_PROFILE_FUNCTION();
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if(m_pool == VK_NULL_HANDLE)
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return;
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for(auto& set : m_free_sets)
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kvfDestroyDescriptorSetLayout(RenderCore::Get().GetDevice(), set->m_set_layout);
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for(auto& set : m_used_sets)
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kvfDestroyDescriptorSetLayout(RenderCore::Get().GetDevice(), set->m_set_layout);
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RenderCore::Get().vkDestroyDescriptorPool(RenderCore::Get().GetDevice(), m_pool, nullptr);
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m_pool = VK_NULL_HANDLE;
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m_free_sets.clear();
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m_used_sets.clear();
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}
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std::shared_ptr<DescriptorSet> DescriptorPool::RequestDescriptorSet(const ShaderSetLayout& layout, ShaderType shader_type)
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{
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MLX_PROFILE_FUNCTION();
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auto it = std::find_if(m_free_sets.begin(), m_free_sets.end(), [&](std::shared_ptr<DescriptorSet> set)
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{
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return shader_type == set->GetShaderType() && layout == set->GetShaderLayout();
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});
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if(it != m_free_sets.end())
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{
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std::shared_ptr<DescriptorSet> set = *it;
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m_free_sets.erase(it);
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m_used_sets.push_back(set);
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return set;
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}
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std::array<VkDescriptorSet, MAX_FRAMES_IN_FLIGHT> vulkan_sets;
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VkShaderStageFlagBits vulkan_shader_stage;
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switch(shader_type)
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{
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case ShaderType::Vertex: vulkan_shader_stage = VK_SHADER_STAGE_VERTEX_BIT; break;
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case ShaderType::Fragment: vulkan_shader_stage = VK_SHADER_STAGE_FRAGMENT_BIT; break;
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default: FatalError("wtf"); vulkan_shader_stage = VK_SHADER_STAGE_VERTEX_BIT; /* Just to shut up warnings */ break;
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}
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std::vector<VkDescriptorSetLayoutBinding> bindings(layout.binds.size());
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for(std::size_t i = 0; i < layout.binds.size(); i++)
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{
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bindings[i].binding = layout.binds[i].first;
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bindings[i].descriptorCount = 1;
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bindings[i].descriptorType = layout.binds[i].second;
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bindings[i].pImmutableSamplers = nullptr;
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bindings[i].stageFlags = vulkan_shader_stage;
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}
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VkDescriptorSetLayout vulkan_layout = kvfCreateDescriptorSetLayout(RenderCore::Get().GetDevice(), bindings.data(), bindings.size());
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for(int i = 0; i < MAX_FRAMES_IN_FLIGHT; i++)
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{
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VkDescriptorSetAllocateInfo alloc_info = {};
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alloc_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
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alloc_info.descriptorPool = m_pool;
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alloc_info.descriptorSetCount = 1;
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alloc_info.pSetLayouts = &vulkan_layout;
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VkDescriptorSet vulkan_set;
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kvfCheckVk(RenderCore::Get().vkAllocateDescriptorSets(RenderCore::Get().GetDevice(), &alloc_info, &vulkan_set));
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vulkan_sets[i] = vulkan_set;
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}
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std::shared_ptr<DescriptorSet> set(new DescriptorSet(*this, vulkan_layout, layout, std::move(vulkan_sets), shader_type));
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m_used_sets.push_back(set);
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return set;
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}
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void DescriptorPool::ReturnDescriptorSet(std::shared_ptr<DescriptorSet> set)
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{
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auto it = std::find_if(m_used_sets.begin(), m_used_sets.end(), [&](const std::shared_ptr<DescriptorSet>& rhs_set)
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{
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return set == rhs_set;
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});
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if(it == m_used_sets.end())
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return;
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m_used_sets.erase(it);
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m_free_sets.push_back(set);
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}
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bool DescriptorPool::CanAllocate(const ShaderSetLayout& layout, ShaderType shader_type) const
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{
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auto it = std::find_if(m_free_sets.begin(), m_free_sets.end(), [&](std::shared_ptr<DescriptorSet> set)
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{
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return shader_type == set->GetShaderType() && layout == set->GetShaderLayout();
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});
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if(it != m_free_sets.end())
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return true;
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return m_used_sets.size() + m_free_sets.size() < MAX_SETS_PER_POOL;
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}
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DescriptorPool& DescriptorPoolManager::GetAvailablePool(const ShaderSetLayout& layout, ShaderType shader_type)
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{
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MLX_PROFILE_FUNCTION();
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for(auto& pool : m_pools)
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{
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if(pool->CanAllocate(layout, shader_type))
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return *pool;
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}
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m_pools.emplace_back(std::make_unique<DescriptorPool>())->Init();
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return *m_pools.back();
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}
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void DescriptorPoolManager::Destroy()
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{
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MLX_PROFILE_FUNCTION();
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for(auto& pool : m_pools)
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pool->Destroy();
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m_pools.clear();
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}
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DescriptorSet::DescriptorSet(DescriptorPool& pool, VkDescriptorSetLayout vulkan_layout, const ShaderSetLayout& layout, std::array<VkDescriptorSet, MAX_FRAMES_IN_FLIGHT> vulkan_sets, ShaderType shader_type) :
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m_shader_layout(layout),
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m_sets(std::move(vulkan_sets)),
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m_set_layout(vulkan_layout),
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m_shader_type(shader_type),
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m_pool(pool)
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{
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MLX_PROFILE_FUNCTION();
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for(auto& [binding, type] : layout.binds)
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{
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m_descriptors.emplace_back();
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m_descriptors.back().type = type;
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m_descriptors.back().binding = binding;
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}
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}
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void DescriptorSet::SetImage(std::size_t i, std::uint32_t binding, class Image& image)
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{
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MLX_PROFILE_FUNCTION();
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Verify(m_sets[i] != VK_NULL_HANDLE, "invalid descriptor");
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auto it = std::find_if(m_descriptors.begin(), m_descriptors.end(), [=](Descriptor descriptor)
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{
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return binding == descriptor.binding;
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});
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if(it == m_descriptors.end())
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{
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Warning("Vulkan: cannot update descriptor set image; invalid binding");
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return;
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}
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if(it->type != VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER)
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{
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Error("Vulkan: trying to bind an image to the wrong descriptor");
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return;
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}
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it->image_ptr = ℑ
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}
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void DescriptorSet::SetStorageBuffer(std::size_t i, std::uint32_t binding, class GPUBuffer& buffer)
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{
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MLX_PROFILE_FUNCTION();
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Verify(m_sets[i] != VK_NULL_HANDLE, "invalid descriptor");
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auto it = std::find_if(m_descriptors.begin(), m_descriptors.end(), [=](Descriptor descriptor)
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{
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return binding == descriptor.binding;
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});
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if(it == m_descriptors.end())
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{
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Warning("Vulkan: cannot update descriptor set buffer; invalid binding");
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return;
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}
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if(it->type != VK_DESCRIPTOR_TYPE_STORAGE_BUFFER)
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{
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Error("Vulkan: trying to bind a buffer to the wrong descriptor");
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return;
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}
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it->storage_buffer_ptr = &buffer;
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}
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void DescriptorSet::SetUniformBuffer(std::size_t i, std::uint32_t binding, class GPUBuffer& buffer)
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{
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MLX_PROFILE_FUNCTION();
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Verify(m_sets[i] != VK_NULL_HANDLE, "invalid descriptor");
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auto it = std::find_if(m_descriptors.begin(), m_descriptors.end(), [=](Descriptor descriptor)
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{
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return binding == descriptor.binding;
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});
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if(it == m_descriptors.end())
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{
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Warning("Vulkan: cannot update descriptor set buffer; invalid binding");
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return;
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}
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if(it->type != VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER)
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{
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Error("Vulkan: trying to bind a buffer to the wrong descriptor");
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return;
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}
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it->uniform_buffer_ptr = &buffer;
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}
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void DescriptorSet::Update(std::size_t i, VkCommandBuffer cmd) noexcept
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{
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MLX_PROFILE_FUNCTION();
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Verify(m_sets[i] != VK_NULL_HANDLE, "invalid descriptor");
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std::size_t image_count = 0;
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std::size_t buffer_count = 0;
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for(auto& descriptor : m_descriptors)
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{
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if(descriptor.image_ptr)
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image_count++;
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else if(descriptor.uniform_buffer_ptr || descriptor.storage_buffer_ptr)
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buffer_count++;
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else
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FatalError("unknown descriptor data");
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}
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std::vector<VkWriteDescriptorSet> writes(m_descriptors.size());
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std::vector<VkDescriptorBufferInfo> buffer_infos(buffer_count);
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std::vector<VkDescriptorImageInfo> image_infos(image_count);
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std::size_t buffer_index = 0;
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std::size_t image_index = 0;
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std::size_t write_index = 0;
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for(auto& descriptor : m_descriptors)
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{
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if(descriptor.image_ptr)
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{
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TransitionImageToCorrectLayout(*descriptor.image_ptr, cmd);
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VkDescriptorImageInfo info{};
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info.sampler = descriptor.image_ptr->GetSampler();
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info.imageLayout = descriptor.image_ptr->GetLayout();
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info.imageView = descriptor.image_ptr->GetImageView();
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image_infos[image_index] = std::move(info);
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writes[write_index] = kvfWriteImageToDescriptorSet(RenderCore::Get().GetDevice(), m_sets[i], &image_infos[image_index], descriptor.binding);
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image_index++;
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}
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else if(descriptor.uniform_buffer_ptr)
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{
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VkDescriptorBufferInfo info{};
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info.buffer = descriptor.uniform_buffer_ptr->Get();
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info.offset = descriptor.uniform_buffer_ptr->GetOffset();
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info.range = VK_WHOLE_SIZE;
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buffer_infos[buffer_index] = std::move(info);
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writes[write_index] = kvfWriteUniformBufferToDescriptorSet(RenderCore::Get().GetDevice(), m_sets[i], &buffer_infos[buffer_index], descriptor.binding);
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buffer_index++;
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}
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else if(descriptor.storage_buffer_ptr)
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{
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VkDescriptorBufferInfo info{};
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info.buffer = descriptor.storage_buffer_ptr->Get();
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info.offset = descriptor.storage_buffer_ptr->GetOffset();
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info.range = VK_WHOLE_SIZE;
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buffer_infos[buffer_index] = std::move(info);
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writes[write_index] = kvfWriteStorageBufferToDescriptorSet(RenderCore::Get().GetDevice(), m_sets[i], &buffer_infos[buffer_index], descriptor.binding);
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buffer_index++;
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}
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write_index++;
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}
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RenderCore::Get().vkUpdateDescriptorSets(RenderCore::Get().GetDevice(), writes.size(), writes.data(), 0, nullptr);
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}
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void DescriptorSet::ReturnDescriptorSetToPool()
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{
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m_pool.ReturnDescriptorSet(shared_from_this());
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}
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}
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