demos: Add Hologram snapshot as Smoke test/demo
diff --git a/demos/smoke/ShellWin32.h b/demos/smoke/ShellWin32.h
new file mode 100644
index 0000000..c5a136b
--- /dev/null
+++ b/demos/smoke/ShellWin32.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 Google, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SHELL_WIN32_H
+#define SHELL_WIN32_H
+
+#include <windows.h>
+#include "Shell.h"
+
+class ShellWin32 : public Shell {
+public:
+ ShellWin32(Game &game);
+ ~ShellWin32();
+
+ void run();
+ void quit();
+
+private:
+
+ PFN_vkGetInstanceProcAddr load_vk();
+ bool can_present(VkPhysicalDevice phy, uint32_t queue_family);
+
+ void create_window();
+ VkSurfaceKHR create_surface(VkInstance instance);
+
+ static LRESULT CALLBACK window_proc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
+ {
+ ShellWin32 *shell = reinterpret_cast<ShellWin32 *>(GetWindowLongPtr(hwnd, GWLP_USERDATA));
+
+ // called from constructor, CreateWindowEx specifically. But why?
+ if (!shell)
+ return DefWindowProc(hwnd, uMsg, wParam, lParam);
+
+ return shell->handle_message(uMsg, wParam, lParam);
+ }
+ LRESULT handle_message(UINT msg, WPARAM wparam, LPARAM lparam);
+
+ HINSTANCE hinstance_;
+ HWND hwnd_;
+
+ HMODULE hmodule_;
+};
+
+#endif // SHELL_WIN32_H