Platform: Add createVkSurface to GlfwApplication

Signed-off-by: Squareys <Squareys@googlemail.com>

src/Magnum/Platform/GlfwApplication.cpp

@@ -33,6 +33,10 @@
 #include "Magnum/Platform/Context.h"
 #include "Magnum/Platform/ScreenedApplication.hpp"
 
+#ifdef MAGNUM_TARGET_VULKAN
+#include "Magnum/Vk/Context.h"
+#endif
+
 namespace Magnum { namespace Platform {
 
 GlfwApplication* GlfwApplication::_instance = nullptr;
@@ -237,6 +241,19 @@ void GlfwApplication::mouseReleaseEvent(MouseEvent&) {}
 void GlfwApplication::mouseMoveEvent(MouseMoveEvent&) {}
 void GlfwApplication::mouseScrollEvent(MouseScrollEvent&) {}
 
+#ifdef MAGNUM_TARGET_VULKAN
+VkSurfaceKHR GlfwApplication::createVkSurface() {
+    VkSurfaceKHR surface;
+
+    VkResult res = glfwCreateWindowSurface(Magnum::Vk::Context::current().vkInstance(), _window, nullptr, &surface);
+    if(res != VK_SUCCESS) {
+        Error() << "Vulkan Surface creation failed.";
+    }
+
+    return surface;
+}
+#endif
+
 GlfwApplication::Configuration::Configuration():
     _title{"Magnum GLFW Application"},
     _size{800, 600}, _sampleCount{0},

src/Magnum/Platform/GlfwApplication.h

@@ -40,6 +40,10 @@
 /* We must include our own GL headers first to avoid conflicts */
 #include "Magnum/OpenGL.h"
 
+#ifdef MAGNUM_TARGET_VULKAN
+#include "vulkan.h"
+#endif
+
 #include <glfw3.h>
 
 namespace Magnum { namespace Platform {
@@ -240,6 +244,10 @@ class GlfwApplication {
 
         /*@}*/
 
+        #ifdef MAGNUM_TARGET_VULKAN
+        VkSurfaceKHR createVkSurface();
+        #endif
+
     private:
         static void staticViewportEvent(GLFWwindow*, int w, int h) {
             _instance->viewportEvent({w, h});