Vk: Continue context setup

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

src/Magnum/Platform/GlfwApplication.h

@@ -220,6 +220,11 @@ class GlfwApplication {
             glfwSetCursorPos(_window, Double(position.x()), Double(position.y()));
         }
 
+
+        #ifdef MAGNUM_TARGET_VULKAN
+        VkSurfaceKHR createVkSurface();
+        #endif
+
     #ifdef DOXYGEN_GENERATING_OUTPUT
     protected:
     #else
@@ -244,10 +249,6 @@ class GlfwApplication {
 
         /*@}*/
 
-        #ifdef MAGNUM_TARGET_VULKAN
-        VkSurfaceKHR createVkSurface();
-        #endif
-
     private:
         static void staticViewportEvent(GLFWwindow*, int w, int h) {
             _instance->viewportEvent({w, h});

src/Magnum/Vk/Context.cpp

@@ -102,11 +102,13 @@ VkBool32 messageCallback(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT
 }
 
 bool Context::tryCreate() {
+    _version = Version::Vulkan_1_0;
+
     VkApplicationInfo appInfo = {};
     appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
     appInfo.pApplicationName = "Vulkan Example";
     appInfo.pEngineName = "Magnum";
-    appInfo.apiVersion = UnsignedInt(Version::Vulkan_1_0);
+    appInfo.apiVersion = UnsignedInt(_version);
 
     std::vector<const char*> enabledExtensions = { VK_KHR_SURFACE_EXTENSION_NAME };
 
@@ -204,4 +206,15 @@ Debug& operator<<(Debug& debug, Context::Flag value) {
     return debug << "Context::Flag::(invalid)";
 }
 
+Debug& operator<<(Debug& debug, Version value) {
+    switch(value) {
+        #define _c(value) case Version::value: return debug << "Vk::Version::" #value;
+        _c(None)
+        _c(Vulkan_1_0)
+        #undef _c
+    }
+
+    return debug << "Vk::Version::(invalid)";
+}
+
 }}

src/Magnum/Vk/Context.h

@@ -185,6 +185,7 @@ class MAGNUM_VK_EXPORT Context {
 
 MAGNUM_VK_EXPORT Debug& operator<<(Debug& debug, Result value);
 MAGNUM_VK_EXPORT Debug& operator<<(Debug& debug, Context::Flag value);
+MAGNUM_VK_EXPORT Debug& operator<<(Debug& debug, Version value);
 
 }}
 

src/Magnum/Vk/Test/ContextTest.cpp

@@ -3,6 +3,7 @@
 
     Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016
               Vladimír Vondruš <mosra@centrum.cz>
+    Copyright © 2016 Jonathan Hale <squareys@googlemail.com>
 
     Permission is hereby granted, free of charge, to any person obtaining a
     copy of this software and associated documentation files (the "Software"),
@@ -33,15 +34,22 @@ namespace Magnum { namespace Test {
 struct ContextTest: TestSuite::Tester {
     explicit ContextTest();
 
+    void createAndDestroy();
     void flag();
     void result();
 };
 
 ContextTest::ContextTest() {
-    addTests({&ContextTest::flag,
+    addTests({&ContextTest::createAndDestroy,
+              &ContextTest::flag,
               &ContextTest::result});
 }
 
+void ContextTest::createAndDestroy() {
+    Vk::Context c{{}};
+    CORRADE_COMPARE(c.version(), Vk::Version::Vulkan_1_0);
+}
+
 void ContextTest::flag() {
     std::ostringstream out;
     Debug(&out) << Vk::Context::Flag::EnableValidation;