Small code refactoring - preparing for further parts of the tutorial.

Project/Common/VulkanCommon.cpp

@@ -612,7 +612,7 @@ namespace ApiWithoutSecrets {
     // Set of images defined in a swap chain may not always be available for application to render to:
     // One may be displayed and one may wait in a queue to be presented
     // If application wants to use more images at the same time it must ask for more images
-    uint32_t image_count = surface_capabilities.minImageCount + 1;
+    uint32_t image_count = surface_capabilities.minImageCount + 2;
     if( (surface_capabilities.maxImageCount > 0) &&
         (image_count > surface_capabilities.maxImageCount) ) {
       image_count = surface_capabilities.maxImageCount;
@@ -699,13 +699,20 @@ namespace ApiWithoutSecrets {
   }
 
   VkPresentModeKHR VulkanCommon::GetSwapChainPresentMode( std::vector<VkPresentModeKHR> &present_modes ) {
-    // FIFO present mode is always available
     // MAILBOX is the lowest latency V-Sync enabled mode (something like triple-buffering) so use it if available
     for( VkPresentModeKHR &present_mode : present_modes ) {
       if( present_mode == VK_PRESENT_MODE_MAILBOX_KHR ) {
         return present_mode;
       }
     }
+    // IMMEDIATE mode allows us to display frames in a V-Sync independent manner so it can introduce screen tearing
+    // But this mode is the best for benchmarking purposes if we want to check the real number of FPS
+    for( VkPresentModeKHR &present_mode : present_modes ) {
+      if( present_mode == VK_PRESENT_MODE_IMMEDIATE_KHR ) {
+        return present_mode;
+      }
+    }
+    // FIFO present mode is always available
     for( VkPresentModeKHR &present_mode : present_modes ) {
       if( present_mode == VK_PRESENT_MODE_FIFO_KHR ) {
         return present_mode;

Project/Common/VulkanCommon.h

@@ -57,6 +57,40 @@ namespace ApiWithoutSecrets {
     }
   };
 
+  // ************************************************************ //
+  // BufferParameters                                             //
+  //                                                              //
+  // Vulkan Buffer's parameters container class                   //
+  // ************************************************************ //
+  struct BufferParameters {
+    VkBuffer                        Handle;
+    VkDeviceMemory                  Memory;
+    uint32_t                        Size;
+
+    BufferParameters() :
+      Handle( VK_NULL_HANDLE ),
+      Memory( VK_NULL_HANDLE ),
+      Size( 0 ) {
+    }
+  };
+
+  // ************************************************************ //
+  // DescriptorParameters                                         //
+  //                                                              //
+  // Container class for descriptor related resources             //
+  // ************************************************************ //
+  struct DescriptorSetParameters {
+    VkDescriptorPool                Pool;
+    VkDescriptorSetLayout           Layout;
+    VkDescriptorSet                 Handle;
+
+    DescriptorSetParameters() :
+      Pool( VK_NULL_HANDLE ),
+      Layout( VK_NULL_HANDLE ),
+      Handle( VK_NULL_HANDLE ) {
+    }
+  };
+
   // ************************************************************ //
   // SwapChainParameters                                          //
   //                                                              //

Project/Tutorials/03/Tutorial03.cpp

@@ -19,8 +19,7 @@
 
 namespace ApiWithoutSecrets {
 
-  Tutorial03::Tutorial03() :
+  Tutorial03::Tutorial03() {
-    Vulkan() {
   }
 
   bool Tutorial03::CreateRenderPass() {

Project/Tutorials/04/Tutorial04.cpp

@@ -20,8 +20,7 @@
 
 namespace ApiWithoutSecrets {
 
-  Tutorial04::Tutorial04() :
+  Tutorial04::Tutorial04() {
-    Vulkan() {
   }
 
   bool Tutorial04::CreateRenderPass() {

Project/Tutorials/04/Tutorial04.h

@@ -22,23 +22,6 @@
 
 namespace ApiWithoutSecrets {
 
-  // ************************************************************ //
-  // BufferParameters                                             //
-  //                                                              //
-  // Vulkan Buffer's parameters container class                   //
-  // ************************************************************ //
-  struct BufferParameters {
-    VkBuffer                        Handle;
-    VkDeviceMemory                  Memory;
-    uint32_t                        Size;
-
-    BufferParameters() :
-      Handle( VK_NULL_HANDLE ),
-      Memory( VK_NULL_HANDLE ),
-      Size( 0 ) {
-    }
-  };
-
   // ************************************************************ //
   // VertexData                                                   //
   //                                                              //

Project/Tutorials/05/Tutorial05.cpp

@@ -19,8 +19,7 @@
 
 namespace ApiWithoutSecrets {
 
-  Tutorial05::Tutorial05() :
+  Tutorial05::Tutorial05() {
-    Vulkan() {
   }
 
   bool Tutorial05::CreateRenderingResources() {

Project/Tutorials/05/Tutorial05.h

@@ -22,23 +22,6 @@
 
 namespace ApiWithoutSecrets {
 
-  // ************************************************************ //
-  // BufferParameters                                             //
-  //                                                              //
-  // Vulkan Buffer's parameters container class                   //
-  // ************************************************************ //
-  struct BufferParameters {
-    VkBuffer                        Handle;
-    VkDeviceMemory                  Memory;
-    uint32_t                        Size;
-
-    BufferParameters() :
-      Handle( VK_NULL_HANDLE ),
-      Memory( VK_NULL_HANDLE ),
-      Size( 0 ) {
-    }
-  };
-
   // ************************************************************ //
   // VertexData                                                   //
   //                                                              //

Project/Tutorials/06/Tutorial06.cpp

@@ -19,8 +19,7 @@
 
 namespace ApiWithoutSecrets {
 
-  Tutorial06::Tutorial06() :
+  Tutorial06::Tutorial06() {
-    Vulkan() {
   }
 
   bool Tutorial06::CreateRenderingResources() {

Project/Tutorials/06/Tutorial06.h

@@ -22,40 +22,6 @@
 
 namespace ApiWithoutSecrets {
 
-  // ************************************************************ //
-  // BufferParameters                                             //
-  //                                                              //
-  // Vulkan Buffer's parameters container class                   //
-  // ************************************************************ //
-  struct BufferParameters {
-    VkBuffer                        Handle;
-    VkDeviceMemory                  Memory;
-    uint32_t                        Size;
-
-    BufferParameters() :
-      Handle( VK_NULL_HANDLE ),
-      Memory( VK_NULL_HANDLE ),
-      Size( 0 ) {
-    }
-  };
-
-  // ************************************************************ //
-  // DescriptorParameters                                         //
-  //                                                              //
-  // Container class for descriptor related resources             //
-  // ************************************************************ //
-  struct DescriptorSetParameters {
-    VkDescriptorPool                Pool;
-    VkDescriptorSetLayout           Layout;
-    VkDescriptorSet                 Handle;
-
-    DescriptorSetParameters() :
-      Pool( VK_NULL_HANDLE ),
-      Layout( VK_NULL_HANDLE ),
-      Handle( VK_NULL_HANDLE ) {
-    }
-  };
-
   // ************************************************************ //
   // VertexData                                                   //
   //                                                              //

Project/Tutorials/07/Tutorial07.cpp

@@ -19,8 +19,7 @@
 
 namespace ApiWithoutSecrets {
 
-  Tutorial07::Tutorial07() :
+  Tutorial07::Tutorial07() {
-    Vulkan() {
   }
 
   bool Tutorial07::CreateRenderingResources() {

Project/Tutorials/07/Tutorial07.h

@@ -22,40 +22,6 @@
 
 namespace ApiWithoutSecrets {
 
-  // ************************************************************ //
-  // BufferParameters                                             //
-  //                                                              //
-  // Vulkan Buffer's parameters container class                   //
-  // ************************************************************ //
-  struct BufferParameters {
-    VkBuffer                        Handle;
-    VkDeviceMemory                  Memory;
-    uint32_t                        Size;
-
-    BufferParameters() :
-      Handle( VK_NULL_HANDLE ),
-      Memory( VK_NULL_HANDLE ),
-      Size( 0 ) {
-    }
-  };
-
-  // ************************************************************ //
-  // DescriptorParameters                                         //
-  //                                                              //
-  // Container class for descriptor related resources             //
-  // ************************************************************ //
-  struct DescriptorSetParameters {
-    VkDescriptorPool                Pool;
-    VkDescriptorSetLayout           Layout;
-    VkDescriptorSet                 Handle;
-
-    DescriptorSetParameters() :
-      Pool( VK_NULL_HANDLE ),
-      Layout( VK_NULL_HANDLE ),
-      Handle( VK_NULL_HANDLE ) {
-    }
-  };
-
   // ************************************************************ //
   // VertexData                                                   //
   //                                                              //