Implemented KrCreateWindowSurface and KrDeleteWindowSurface

kraken/KRContext.cpp

@@ -164,7 +164,7 @@ KRContext::~KRContext() {
         delete m_pBundleManager;
         m_pBundleManager = NULL;
     }
-    
+    destroySurfaces();
     destroyDeviceContexts();
     if (m_resourceMap) {
         delete m_resourceMap;
@@ -676,6 +676,14 @@ KRContext::createDeviceContexts()
   app_info.engineVersion = 1;
   app_info.apiVersion = VK_API_VERSION_1_0;
 
+  // VK_KHR_surface and VK_KHR_win32_surface
+
+  char* extensions[] = {
+    "VK_KHR_surface",
+#ifdef WIN32
+    "VK_KHR_win32_surface",
+#endif
+  };
 
   // initialize the VkInstanceCreateInfo structure
   VkInstanceCreateInfo inst_info = {};
@@ -683,8 +691,12 @@ KRContext::createDeviceContexts()
   inst_info.pNext = NULL;
   inst_info.flags = 0;
   inst_info.pApplicationInfo = &app_info;
-  inst_info.enabledExtensionCount = 0;
-  inst_info.ppEnabledExtensionNames = NULL;
+#ifdef WIN32
+  inst_info.enabledExtensionCount = 2;
+#else
+  inst_info.enabledExtensionCount = 1;
+#endif
+  inst_info.ppEnabledExtensionNames = extensions;
   inst_info.enabledLayerCount = 0;
   inst_info.ppEnabledLayerNames = NULL;
 
@@ -705,6 +717,19 @@ KRContext::destroyDeviceContexts()
   }
 }
 
+void
+KRContext::destroySurfaces()
+{
+  if (m_vulkanInstance == VK_NULL_HANDLE) {
+    return;
+  }
+  for (auto itr = m_surfaces.begin(); itr != m_surfaces.end(); itr++) {
+    SurfaceInfo* surfaceInfo = &(*itr).second;
+    vkDestroySurfaceKHR(m_vulkanInstance, surfaceInfo->surface, nullptr);
+  }
+  m_surfaces.clear();
+}
+
 void
 KRContext::activateStreamerContext()
 {
@@ -795,16 +820,29 @@ KrResult KRContext::createWindowSurface(const KrCreateWindowSurfaceInfo* createW
   if (createWindowSurfaceInfo->surfaceHandle < 0) {
     return KR_ERROR_OUT_OF_BOUNDS;
   }
+  if (m_vulkanInstance == VK_NULL_HANDLE) {
+    return KR_ERROR_VULKAN_REQUIRED;
+  }
   if (m_surfaces.count(createWindowSurfaceInfo->surfaceHandle)) {
     return KR_ERROR_DUPLICATE_HANDLE;
   }
   SurfaceInfo info{};
   info.surfaceHandle = createWindowSurfaceInfo->surfaceHandle;
+
 #ifdef WIN32
   info.hWnd = static_cast<HWND>(createWindowSurfaceInfo->hWnd);
+
+  VkWin32SurfaceCreateInfoKHR createInfo{};
+  createInfo.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
+  createInfo.hinstance = GetModuleHandle(nullptr);
+  createInfo.hwnd = info.hWnd;
+  
+  if(vkCreateWin32SurfaceKHR(m_vulkanInstance, &createInfo, nullptr, &info.surface) != VK_SUCCESS) {
+    return KR_ERROR_VULKAN;
+  }
   m_surfaces.insert(std::pair<KrSurfaceHandle, SurfaceInfo>(createWindowSurfaceInfo->surfaceHandle, info));
-  // TODO - Complete implementation
-  return KR_ERROR_NOT_IMPLEMENTED;
+
+  return KR_SUCCESS;
 #else
   // Not implemented for this platform
   return KR_ERROR_NOT_IMPLEMENTED;
@@ -816,6 +854,15 @@ KrResult KRContext::deleteWindowSurface(const KrDeleteWindowSurfaceInfo* deleteW
   if (deleteWindowSurfaceInfo->surfaceHandle < 0) {
     return KR_ERROR_OUT_OF_BOUNDS;
   }
-  // TODO - Complete implementation
-  return KR_ERROR_NOT_IMPLEMENTED;
+  if (m_vulkanInstance == VK_NULL_HANDLE) {
+    return KR_ERROR_VULKAN_REQUIRED;
+  }
+  auto itr = m_surfaces.find(deleteWindowSurfaceInfo->surfaceHandle);
+  if (itr == m_surfaces.end()) {
+    return KR_ERROR_NOT_FOUND;
+  }
+  SurfaceInfo* surfaceInfo = &(*itr).second;
+  vkDestroySurfaceKHR(m_vulkanInstance, surfaceInfo->surface, nullptr);
+  m_surfaces.erase(itr);
+  return KR_SUCCESS;
 }

kraken/KRContext.h

@@ -171,10 +171,12 @@ private:
     
     void createDeviceContexts();
     void destroyDeviceContexts();
+    void destroySurfaces();
 
     unordered_multimap<std::string, KRResource*> m_resources;
     typedef struct {
       KrSurfaceHandle surfaceHandle;
+      VkSurfaceKHR surface;
 #ifdef WIN32
       HWND hWnd;
 #endif

kraken/kraken.cpp

@@ -42,20 +42,20 @@ KrResult KrShutdown()
   return KR_SUCCESS;
 }
 
-KrResult KrCreateSurface(const KrCreateWindowSurfaceInfo* pCreateSurfaceInfo)
+KrResult KrCreateWindowSurface(const KrCreateWindowSurfaceInfo* pCreateWindowSurfaceInfo)
 {
   if (!sContext) {
     return KR_ERROR_NOT_INITIALIZED;
   }
-  return sContext->createWindowSurface(pCreateSurfaceInfo);
+  return sContext->createWindowSurface(pCreateWindowSurfaceInfo);
 }
 
-KrResult KrDeleteSurface(const KrDeleteWindowSurfaceInfo* pDeleteSurfaceInfo)
+KrResult KrDeleteWindowSurface(const KrDeleteWindowSurfaceInfo* pDeleteWindowSurfaceInfo)
 {
   if (!sContext) {
     return KR_ERROR_NOT_INITIALIZED;
   }
-  return sContext->deleteWindowSurface(pDeleteSurfaceInfo);
+  return sContext->deleteWindowSurface(pDeleteWindowSurfaceInfo);
 }
 
 KrResult KrLoadResource(const KrLoadResourceInfo* pLoadResourceInfo)

kraken/public/kraken.h

@@ -38,14 +38,16 @@
 
 typedef enum {
   KR_SUCCESS = 0,
-  KR_ERROR_NOT_INITIALIZED = 1,
-  KR_ERROR_NOT_IMPLEMENTED = 2,
-  KR_ERROR_OUT_OF_BOUNDS = 3,
-  KR_ERROR_NOT_MAPPED = 4,
-  KR_ERROR_INCORRECT_TYPE = 5,
-  KR_ERROR_NOT_FOUND = 6,
-  KR_ERROR_AMBIGUOUS_MATCH = 7,
-  KR_ERROR_DUPLICATE_HANDLE = 8,
+  KR_ERROR_NOT_INITIALIZED,
+  KR_ERROR_NOT_IMPLEMENTED,
+  KR_ERROR_OUT_OF_BOUNDS,
+  KR_ERROR_NOT_MAPPED,
+  KR_ERROR_INCORRECT_TYPE,
+  KR_ERROR_NOT_FOUND,
+  KR_ERROR_AMBIGUOUS_MATCH,
+  KR_ERROR_DUPLICATE_HANDLE,
+  KR_ERROR_VULKAN,
+  KR_ERROR_VULKAN_REQUIRED,
   KR_ERROR_UNEXPECTED = 0x10000000,
   KR_RESULT_MAX_ENUM = 0x7FFFFFFF
 } KrResult;
@@ -54,6 +56,9 @@ typedef enum {
   KR_STRUCTURE_TYPE_INITIALIZE       = 0,
   KR_STRUCTURE_TYPE_SHUTDOWN,
 
+  KR_STRUCTURE_TYPE_CREATE_WINDOW_SURFACE,
+  KR_STRUCTURE_TYPE_DELETE_WINDOW_SURFACE,
+
   KR_STRUCTURE_TYPE_LOAD_RESOURCE    = 0x00010000,
   KR_STRUCTURE_TYPE_UNLOAD_RESOURCE,
   KR_STRUCTURE_TYPE_SAVE_RESOURCE,