From 707f27736621a2394ebca4b24d0fc06606c5e3b0 Mon Sep 17 00:00:00 2001
From: Squareys <squareys@googlemail.com>
Date: Tue, 26 Apr 2016 17:36:47 +0200
Subject: [PATCH] WIP

---
 src/Magnum/Test/ContextTest.cpp | 20 +++++++++++++-------
 src/Magnum/Vk/Context.cpp       | 15 ++++++++++++++-
 src/Magnum/Vk/Context.h         |  1 +
 3 files changed, 28 insertions(+), 8 deletions(-)

diff --git a/src/Magnum/Test/ContextTest.cpp b/src/Magnum/Test/ContextTest.cpp
index bad9274ee..49744edde 100644
--- a/src/Magnum/Test/ContextTest.cpp
+++ b/src/Magnum/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"),
@@ -33,21 +34,26 @@ namespace Magnum { namespace Test {
 struct ContextTest: TestSuite::Tester {
     explicit ContextTest();
 
-    void debugFlag();
+    void createAndDestroy();
+    void flag();
+    void result();
 };
 
 ContextTest::ContextTest() {
-    addTests({&ContextTest::debugFlag});
+    addTests({&ContextTest::createAndDestroy,
+              &ContextTest::flag,
+              &ContextTest::result});
 }
 
-void ContextTest::debugFlag() {
-    #ifdef MAGNUM_TARGET_WEBGL
-    CORRADE_SKIP("No context flags on Emscripten yet.");
-    #else
+void ContextTest::createAndDestroy() {
+    Vk::Context c{{}};
+    CORRADE_COMPARE(c.version(), Vk::Version::Vulkan_1_0);
+}
+
+void ContextTest::flag() {
     std::ostringstream out;
     Debug(&out) << Context::Flag::Debug << Context::Flag(0xdead);
     CORRADE_COMPARE(out.str(), "Context::Flag::Debug Context::Flag(0xdead)\n");
-    #endif
 }
 
 }}
diff --git a/src/Magnum/Vk/Context.cpp b/src/Magnum/Vk/Context.cpp
index 6a63e3b6e..8704c00b4 100644
--- a/src/Magnum/Vk/Context.cpp
+++ b/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)";
+}
+
 }}
diff --git a/src/Magnum/Vk/Context.h b/src/Magnum/Vk/Context.h
index 429054371..0d63b1b6e 100644
--- a/src/Magnum/Vk/Context.h
+++ b/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);
 
 }}