Clear code

Core/Core/RenderEngine.cpp

@@ -78,10 +78,13 @@ VkVertexInputBindingDescription RenderEngine::Vertex::get_binding_description()
 std::array<VkVertexInputAttributeDescription, 2> RenderEngine::Vertex::get_vertex_attribute_descriptions()
 {
     std::array<VkVertexInputAttributeDescription, 2> descriptions;
+    // Bind vertex loc
     descriptions[0].binding = 0;
     descriptions[0].location = 0;
     descriptions[0].format = VK_FORMAT_R32G32_SFLOAT;
     descriptions[0].offset = offsetof(Vertex, pos);
+
+    // Bind color
     descriptions[1].binding = 0;
     descriptions[1].location = 1;
     descriptions[1].format = VK_FORMAT_R32G32B32_SFLOAT;
@@ -98,6 +101,7 @@ bool RenderEngine::is_device_suitable(VkPhysicalDevice device, VkSurfaceKHR surf
     vkGetPhysicalDeviceFeatures(device, &device_features);
 
     try {
+        // Ловить исключения имеет смысыл только здесь
         QueueFamilyIndices indices =  find_queue_family_indices(device, surface);
     } catch (...) {
         return false;
@@ -155,8 +159,10 @@ RenderEngine::QueueFamilyIndices RenderEngine::find_queue_family_indices(VkPhysi
     // Find present
     VkBool32 present_support = false;
     VK_CHECK(vkGetPhysicalDeviceSurfaceSupportKHR(physical_device, queue_family_indices.graphics_family.value(), surface, &present_support));
+    // Если графическая очередь поддерживет презентацию кадров, то используем её
     if (present_support == VK_TRUE)
         queue_family_indices.present_family = queue_family_indices.graphics_family;
+    // иначе ищем другую подходящую очередь
     else
     {
         for(uint32_t i = 0; i < family_properties.size(); ++i)
@@ -174,6 +180,8 @@ RenderEngine::QueueFamilyIndices RenderEngine::find_queue_family_indices(VkPhysi
     if (queue_family_indices.present_family.has_value() == false)
         throw std::runtime_error("Failed to find a present queue family");
 
+    // С начала пытаемся найти очередь специалезированную
+    // для копирования отличную от графической
     for(uint32_t i = 0; i < family_properties.size(); ++i)
     {
         if (i == queue_family_indices.graphics_family.value())
@@ -181,6 +189,7 @@ RenderEngine::QueueFamilyIndices RenderEngine::find_queue_family_indices(VkPhysi
         if (family_properties[i].queueFlags & VK_QUEUE_TRANSFER_BIT)
             queue_family_indices.transfer_family = i;
     }
+    // Если не находим, то используем графическую
     if (queue_family_indices.transfer_family.has_value() == false)
         queue_family_indices.transfer_family = queue_family_indices.graphics_family;
     return queue_family_indices;
@@ -208,6 +217,7 @@ VkPresentModeKHR RenderEngine::choose_present_mode(const std::vector<VkPresentMo
 
 VkExtent2D RenderEngine::choose_extent(const VkSurfaceCapabilitiesKHR& capabilities, GLFWwindow* window)
 {
+    // Здесь вычисляется допустимое разрешение рендера
     if (capabilities.currentExtent.width != std::numeric_limits<uint32_t>::max())
         return capabilities.currentExtent;
     else

Core/Core/RenderEngine.h

@@ -60,7 +60,9 @@ class RenderEngine
     int current_frame_ = 0;
 
     CoreInstance& core_;
+    
     GLFWwindow* window_;
+    
     VkInstance instance_ = VK_NULL_HANDLE;
     VkSurfaceKHR surface_ = VK_NULL_HANDLE;
     VkPhysicalDevice physical_device_ = VK_NULL_HANDLE;
@@ -80,6 +82,7 @@ class RenderEngine
     VkCommandPool command_pool_ = VK_NULL_HANDLE;
     std::vector<VkCommandBuffer> command_buffers_;
 
+    // Sync objects
     std::vector<VkSemaphore> image_available_semaphores_, render_finished_semaphores_;
     std::vector<VkFence> in_flight_fences_;
     
@@ -123,4 +126,6 @@ public:
 
     void start();
     void stop_render() const;
+
+    GLFWwindow* get_window() const { return window_; }
 };