CreateDescriptorSet()

void Spices::VulkanImage::CreateDescriptorSet

(

uint32_t

binding

)

Create DescriptorSet with single image.

Parameters

[in]

binding

Which binding will be use.

Destroy old DescriptorSetLayout.

Instance a VkDescriptorSetLayoutBinding.

@breif Instance a VkDescriptorSetLayoutBindingFlagsCreateInfo.

Instance a VkDescriptorSetLayoutCreateInfo.

Create DescriptorSetLayout.

Instance a VkDescriptorSetAllocateInfo.

Allocate DescriptorSets.

Instance a VkDescriptorImageInfo.

Instance a VkWriteDescriptorSet.

Update DecriptorSet.

Destroy old DescriptorSetLayout.

Instance a VkDescriptorSetLayoutBinding.

@breif Instance a VkDescriptorSetLayoutBindingFlagsCreateInfo.

Instance a VkDescriptorSetLayoutCreateInfo.

Create DescriptorSetLayout.

Instance a VkDescriptorSetAllocateInfo.

Allocate DescriptorSets.

Instance a VkDescriptorImageInfo.

Instance a VkWriteDescriptorSet.

Update DecriptorSet.

Definition at line 909 of file VulkanImage.cpp.

    {
        SPICES_PROFILE_ZONE;
 
        DestroyDescriptorSetLayout();
 
        m_IsCreateSet = true;
 
        VkDescriptorSetLayoutBinding                        samplerLayoutBinding{};
        samplerLayoutBinding.binding                      = binding;
        samplerLayoutBinding.descriptorCount              = 1;
        samplerLayoutBinding.descriptorType               = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
        samplerLayoutBinding.pImmutableSamplers           = nullptr;
        samplerLayoutBinding.stageFlags                   = VK_SHADER_STAGE_FRAGMENT_BIT;
 
        VkDescriptorBindingFlags                           setBindingFlags;
        setBindingFlags                                   = VK_DESCRIPTOR_BINDING_PARTIALLY_BOUND_BIT | VK_DESCRIPTOR_BINDING_UPDATE_AFTER_BIND_BIT;
 
        VkDescriptorSetLayoutBindingFlagsCreateInfo         bindingFlags{};
        bindingFlags.sType                                = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_BINDING_FLAGS_CREATE_INFO;
        bindingFlags.pNext                                = nullptr;
        bindingFlags.pBindingFlags                        = &setBindingFlags;
        bindingFlags.bindingCount                         = 1;
 
        VkDescriptorSetLayoutCreateInfo                     layoutInfo{};
        layoutInfo.sType                                  = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
        layoutInfo.bindingCount                           = 1;
        layoutInfo.pBindings                              = &samplerLayoutBinding;
        layoutInfo.flags                                  = VK_DESCRIPTOR_SET_LAYOUT_CREATE_UPDATE_AFTER_BIND_POOL_BIT;
        layoutInfo.pNext                                  = &bindingFlags;
 
        VK_CHECK(vkCreateDescriptorSetLayout(m_VulkanState.m_Device, &layoutInfo, nullptr, &m_DescriptorSetLayout))
        DEBUGUTILS_SETOBJECTNAME(VK_OBJECT_TYPE_DESCRIPTOR_SET_LAYOUT, reinterpret_cast<uint64_t>(m_DescriptorSetLayout), m_VulkanState.m_Device, "DescriptorSetLayoutImage")
 
        
        VkDescriptorSetAllocateInfo allocInfo{};
        allocInfo.sType                                   = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO;
        allocInfo.descriptorPool                          = VulkanRenderBackend::GetDescriptorPool()->GetPool();
        allocInfo.descriptorSetCount                      = 1;
        allocInfo.pSetLayouts                             = &m_DescriptorSetLayout;
 
        VK_CHECK(vkAllocateDescriptorSets(m_VulkanState.m_Device, &allocInfo, &m_DescriptorSet))
        DEBUGUTILS_SETOBJECTNAME(VK_OBJECT_TYPE_DESCRIPTOR_SET, reinterpret_cast<uint64_t>(m_DescriptorSet), m_VulkanState.m_Device, "DescriptorSetImage")
        
        
        VkDescriptorImageInfo imageInfo{};
        imageInfo.imageLayout                             = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
        imageInfo.imageView                               = m_ImageViews[0];
        imageInfo.sampler                                 = m_TextureSampler;
 
        VkWriteDescriptorSet descriptorWrite{};
        descriptorWrite.sType                             = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
        descriptorWrite.dstSet                            = m_DescriptorSet;
        descriptorWrite.dstBinding                        = binding;
        descriptorWrite.dstArrayElement                   = 0;
        descriptorWrite.descriptorType                    = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
        descriptorWrite.descriptorCount                   = 1;
        descriptorWrite.pImageInfo                        = &imageInfo;
 
        vkUpdateDescriptorSets(m_VulkanState.m_Device, 1, &descriptorWrite, 0, nullptr);
    }

References DestroyDescriptorSetLayout(), and m_IsCreateSet.