/*-------------------------------------------------------------------------
 * drawElements Quality Program Tester Core
 * ----------------------------------------
 *
 * Copyright 2016 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *//*!
 * \file
 * \brief Win32 platform port.
 *//*--------------------------------------------------------------------*/

#include "tcuWin32Platform.hpp"
#include "tcuWGLContextFactory.hpp"
#include "tcuWin32EGLNativeDisplayFactory.hpp"
#include "egluGLContextFactory.hpp"

// MinGW doesn't define this in its headers, but
// still has the export in the libs.
#if defined(__MINGW32__)
extern "C" WINUSERAPI WINBOOL WINAPI SetProcessDPIAware(VOID);
#endif

namespace tcu
{
namespace win32
{

Platform::Platform (void)
	: m_instance		(GetModuleHandle(NULL))
	, m_vulkanPlatform	(m_instance)
{
	// Set process priority to lower.
	SetPriorityClass(GetCurrentProcess(), BELOW_NORMAL_PRIORITY_CLASS);


	// Set process to be DPI aware
	// This is requried for VK tests that manually enter exclusive mode
	// using VK_FULL_SCREEN_EXCLUSIVE_APPLICATION_CONTROLLED_EXT
	if (SetProcessDPIAware() == 0)
	{
		TCU_FAIL("SetProcessDPIAware  function failed");
	}

	{
		wgl::ContextFactory* factory = DE_NULL;

		try
		{
			factory = new wgl::ContextFactory(m_instance);
		}
		catch (const std::exception& e)
		{
			print("Warning: WGL not supported: %s\n", e.what());
		}

		if (factory)
		{
			try
			{
				m_contextFactoryRegistry.registerFactory(factory);
			}
			catch (...)
			{
				delete factory;
				throw;
			}
		}
	}

	m_nativeDisplayFactoryRegistry.registerFactory(new win32::EGLNativeDisplayFactory(m_instance));
	m_contextFactoryRegistry.registerFactory(new eglu::GLContextFactory(m_nativeDisplayFactoryRegistry));
}

Platform::~Platform (void)
{
}

bool Platform::processEvents (void)
{
	MSG msg;
	while (PeekMessage(&msg, (HWND)-1, 0, 0, PM_REMOVE))
	{
		DispatchMessage(&msg);
		if (msg.message == WM_QUIT)
			return false;
	}
	return true;
}

} // win32
} // tcu

// Create platform
tcu::Platform* createPlatform (void)
{
	return new tcu::win32::Platform();
}