.. _program_listing_file_PrismEngine_src_descriptorSetLayout.cpp:

Program Listing for File descriptorSetLayout.cpp
================================================

|exhale_lsh| :ref:`Return to documentation for file <file_PrismEngine_src_descriptorSetLayout.cpp>` (``PrismEngine\src\descriptorSetLayout.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include "descriptorSetLayout.h"
   
   void prism::PGC::DescriptorSetLayout::init(PGC::utils::Context* context, PGC::utils::Settings* settings)
   {
       this->context = context;
       this->settings = settings;
       create();
   }
   
   prism::PGC::DescriptorSetLayout::~DescriptorSetLayout()
   {
   }
   
   void prism::PGC::DescriptorSetLayout::cleanup()
   {
       vkDestroyDescriptorSetLayout(context->device, context->descriptorSetLayout, nullptr);
   }
   
   void prism::PGC::DescriptorSetLayout::create()
   {
       std::vector<VkDescriptorSetLayoutBinding> bindings;
       for (int i = 0; i < settings->descriptorSetLayout.bindings.size(); i++) {
           utils::BindingConfig targetBinding = settings->descriptorSetLayout.bindings[i];
           bindings.push_back(createDescriptorSetLayoutBinding(targetBinding.binding,
               targetBinding.descriptorType,
               targetBinding.descriptorCount,
               targetBinding.stageFlags,
               targetBinding.immutableSamplers));
       }
       VkDescriptorSetLayoutCreateInfo layoutInfo{};
       layoutInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO;
       layoutInfo.bindingCount = static_cast<uint32_t>(bindings.size());
       layoutInfo.pBindings = bindings.data();
   
       if (vkCreateDescriptorSetLayout(context->device, &layoutInfo, nullptr, &context->descriptorSetLayout) != VK_SUCCESS) {
           throw std::runtime_error("failed to create descriptor set layout!");
       }
   
       // Пул для bindless текстур
       VkDescriptorPoolSize texturePoolSize{};
       texturePoolSize.type = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
       texturePoolSize.descriptorCount = settings->MAX_TEXTURES;
   
       VkDescriptorPoolCreateInfo texturePoolInfo{};
       texturePoolInfo.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO;
       texturePoolInfo.flags = VK_DESCRIPTOR_POOL_CREATE_UPDATE_AFTER_BIND_BIT_EXT;
       texturePoolInfo.poolSizeCount = 1;
       texturePoolInfo.pPoolSizes = &texturePoolSize;
       texturePoolInfo.maxSets = 1;
   
       if (vkCreateDescriptorPool(context->device, &texturePoolInfo, nullptr, &context->textureDescriptorPool) != VK_SUCCESS) {
           throw std::runtime_error("failed to create texture descriptor pool!");
       }
   }
   
   VkDescriptorSetLayoutBinding prism::PGC::DescriptorSetLayout::createDescriptorSetLayoutBinding(uint32_t binding, VkDescriptorType descriptorType, uint32_t descriptorCount, VkShaderStageFlags stageFlags, const VkSampler* immutableSamplers)
   {
       VkDescriptorSetLayoutBinding uboLayoutBinding{};
       uboLayoutBinding.binding = binding;
       uboLayoutBinding.descriptorCount = descriptorCount;
       uboLayoutBinding.descriptorType = descriptorType;
       uboLayoutBinding.pImmutableSamplers = immutableSamplers;
       uboLayoutBinding.stageFlags = stageFlags;
       return uboLayoutBinding;
   }