// Copyright (C) 2010-2012, XFX Team
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions are met:
// 
//     * Redistributions of source code must retain the above copyright 
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright 
//       notice, this list of conditions and the following disclaimer in the 
//       documentation and/or other materials provided with the distribution.
//     * Neither the name of the copyright holder nor the names of any 
//       contributors may be used to endorse or promote products derived from 
//       this software without specific prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
// POSSIBILITY OF SUCH DAMAGE.

#include <GraphicsDeviceManager.h>

#include <sassert.h>

extern "C" {
#include "../libXFX/pbKit.h"
}

namespace XFX
{
	const int GraphicsDeviceManager::DefaultBackBufferWidth = 640;
	const int GraphicsDeviceManager::DefaultBackBufferHeight = 480;
	const DeviceType_t GraphicsDeviceManager::ValidDeviceTypes[] = { DeviceType::Hardware };
	SurfaceFormat_t GraphicsDeviceManager::ValidAdapterFormats[] = { SurfaceFormat::Bgr32, SurfaceFormat::Bgr555, SurfaceFormat::Bgr565, SurfaceFormat::Bgra1010102 };
	SurfaceFormat_t GraphicsDeviceManager::ValidBackBufferFormats[] = { SurfaceFormat::Bgr565, SurfaceFormat::Bgr555, SurfaceFormat::Bgra5551, SurfaceFormat::Bgr32, SurfaceFormat::Color, SurfaceFormat::Bgra1010102 };

	GraphicsDeviceManager::GraphicsDeviceManager(Game* game)
	{
		SynchronizeWithVerticalRetrace = true;
		backBufferFormat = SurfaceFormat::Color;
		backBufferHeight = DefaultBackBufferHeight;
		backBufferWidth = DefaultBackBufferWidth;
		minimumVertexShaderProfile = ShaderProfile::XVS_1_1;
		_game = game;

		sassert(game->getServices().GetService("IGraphicsDeviceManager") == null, "A graphics device manager is already registered.  The graphics device manager cannot be changed once it is set.");

        game->getServices().AddService("IGraphicsDeviceManager", this);
		game->getServices().AddService("IGraphicsDeviceService", this);
	}

	GraphicsDeviceManager::GraphicsDeviceManager(const GraphicsDeviceManager &obj)
		: _game(obj._game)
	{
		backBufferFormat = obj.backBufferFormat;
		backBufferHeight = obj.backBufferHeight;
		backBufferWidth = obj.backBufferWidth;
		minimumVertexShaderProfile = obj.minimumVertexShaderProfile;
	}

	GraphicsDevice* GraphicsDeviceManager::getGraphicsDevice() const
	{
		return graphicsDevice;
	}
	
	bool GraphicsDeviceManager::IsFullScreen()
	{
		return true;
	}
	
	void GraphicsDeviceManager::ApplyChanges()
	{
		
	}

	bool GraphicsDeviceManager::BeginDraw()
	{
		return true;
	}

	bool GraphicsDeviceManager::CanResetDevice(const GraphicsDeviceInformation newDeviceInfo)
	{
		/*if (graphicsDevice->getDeviceType() != newDeviceInfo.DeviceType_)
        {
            return false;
        }*/
        return true;
	}

	void GraphicsDeviceManager::CreateDevice()
	{
		// TODO: properly construct the GraphicsDevice- requires lots of additional coding in multiple places
		graphicsDevice = new GraphicsDevice(null, DeviceType::Hardware, null);

		OnDeviceCreated(this, EventArgs::Empty);
	}

	void GraphicsDeviceManager::Dispose()
	{
		Dispose(true);
	}

	void GraphicsDeviceManager::Dispose(bool disposing)
	{
		if (disposing)
		{
			graphicsDevice->Dispose();
		}
	}

	void GraphicsDeviceManager::EndDraw()
	{
		graphicsDevice->Present();
	}

	void GraphicsDeviceManager::OnDeviceCreated(Object* sender, EventArgs args)
	{
		if (DeviceCreated != null)
			DeviceCreated(sender, args);
	}

	void GraphicsDeviceManager::OnDeviceDisposing(Object* sender, EventArgs args)
	{
		if (DeviceDisposing != null)
			DeviceDisposing(sender, args);
	}

	void GraphicsDeviceManager::OnDeviceReset(Object* sender, EventArgs args)
	{
		if (DeviceReset != null)
			DeviceReset(sender, args);
	}

	void GraphicsDeviceManager::OnDeviceResetting(Object* sender, EventArgs args)
	{
		if (DeviceResetting != null)
			DeviceResetting(sender, args);
	}

	void GraphicsDeviceManager::ToggleFullscreen()
	{
		
	}
}