// Copyright (C) 2002-2007 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h

#include "CVideoModeList.h"

namespace irr
{
namespace video
{

//! constructor
CVideoModeList::CVideoModeList()
{
	Desktop.depth = 0;
	Desktop.size = core::dimension2d<s32>(0,0);
}


//! destructor
CVideoModeList::~CVideoModeList()
{
}



void CVideoModeList::setDesktop(s32 desktopDepth, const core::dimension2d<s32>& desktopSize)
{
	Desktop.depth = desktopDepth;
	Desktop.size = desktopSize;
}


//! Gets amount of video modes in the list.
s32 CVideoModeList::getVideoModeCount() const
{
	return (s32)VideoModes.size();
}



//! Returns the screen size of a video mode in pixels.
core::dimension2d<s32> CVideoModeList::getVideoModeResolution(s32 modeNumber) const
{
	if (modeNumber < 0 || modeNumber > (s32)VideoModes.size())
		return core::dimension2d<s32>(0,0);

	return VideoModes[modeNumber].size;
}



//! Returns the pixel depth of a video mode in bits.
s32 CVideoModeList::getVideoModeDepth(s32 modeNumber) const
{
	if (modeNumber < 0 || modeNumber > (s32)VideoModes.size())
		return 0;

	return VideoModes[modeNumber].depth;
}


//! Returns current desktop screen resolution.
core::dimension2d<s32> CVideoModeList::getDesktopResolution() const
{
	return Desktop.size;
}


//! Returns the pixel depth of a video mode in bits.
s32 CVideoModeList::getDesktopDepth() const
{
	return Desktop.depth;
}



//! adds a new mode to the list
void CVideoModeList::addMode(const core::dimension2d<s32>& size, s32 depth)
{
	SVideoMode m;
	m.depth = depth;
	m.size = size;

	for (u32 i=0; i<VideoModes.size(); ++i)
	{
		if (VideoModes[i] == m)
			return;
	}

	VideoModes.push_back(m);
	VideoModes.sort(); // TODO: could be replaced by inserting into right place
}


} // end namespace video
} // end namespace irr