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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007 Laurent Gomila (laurent.gom@gmail.com)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Window/VideoMode.hpp>
#include <SFML/Window/VideoModeSupport.hpp>
#include <algorithm>
#include <vector>
////////////////////////////////////////////////////////////
/// Internal data
////////////////////////////////////////////////////////////
namespace
{
// Global array of supported video modes
std::vector<sf::VideoMode> SupportedModes;
// Functor for sorting modes from highest to lowest
struct CompareModes
{
bool operator ()(const sf::VideoMode& v1, const sf::VideoMode& v2) const
{
if (v1.BitsPerPixel > v2.BitsPerPixel)
return true;
else if (v1.BitsPerPixel < v2.BitsPerPixel)
return false;
else if (v1.Width > v2.Width)
return true;
else if (v1.Width < v2.Width)
return false;
else
return (v1.Height > v2.Height);
}
};
}
namespace sf
{
////////////////////////////////////////////////////////////
/// Default constructor
////////////////////////////////////////////////////////////
VideoMode::VideoMode() :
Width (0),
Height (0),
BitsPerPixel(0)
{
}
////////////////////////////////////////////////////////////
/// Construct the video mode with its attributes
////////////////////////////////////////////////////////////
VideoMode::VideoMode(unsigned int ModeWidth, unsigned int ModeHeight, unsigned int ModeBpp) :
Width (ModeWidth),
Height (ModeHeight),
BitsPerPixel(ModeBpp)
{
}
////////////////////////////////////////////////////////////
/// Get the current desktop video mode
////////////////////////////////////////////////////////////
VideoMode VideoMode::GetDesktopMode()
{
// Directly forward to the video mode support
return priv::VideoModeSupport::GetDesktopVideoMode();
}
////////////////////////////////////////////////////////////
/// Get a valid video mode
/// Index must be in range [0, GetModesCount()[
////////////////////////////////////////////////////////////
VideoMode VideoMode::GetMode(std::size_t Index)
{
if (SupportedModes.empty())
InitializeModes();
if (Index < GetModesCount())
return SupportedModes[Index];
else
return VideoMode();
}
////////////////////////////////////////////////////////////
/// Get valid video modes count
////////////////////////////////////////////////////////////
std::size_t VideoMode::GetModesCount()
{
if (SupportedModes.empty())
InitializeModes();
return SupportedModes.size();
}
////////////////////////////////////////////////////////////
/// Tell whether or not the video mode is supported
////////////////////////////////////////////////////////////
bool VideoMode::IsValid() const
{
if (SupportedModes.empty())
InitializeModes();
return std::find(SupportedModes.begin(), SupportedModes.end(), *this) != SupportedModes.end();
}
////////////////////////////////////////////////////////////
/// Comparison operator overload -- tell if two video modes are equal
////////////////////////////////////////////////////////////
bool VideoMode::operator ==(const VideoMode& Other) const
{
return (Width == Other.Width) &&
(Height == Other.Height) &&
(BitsPerPixel == Other.BitsPerPixel);
}
////////////////////////////////////////////////////////////
/// Comparison operator overload -- tell if two video modes are different
////////////////////////////////////////////////////////////
bool VideoMode::operator !=(const VideoMode& Other) const
{
return !(*this == Other);
}
////////////////////////////////////////////////////////////
/// Get and sort valid video modes
////////////////////////////////////////////////////////////
void VideoMode::InitializeModes()
{
// We request the array of valid modes
priv::VideoModeSupport::GetSupportedVideoModes(SupportedModes);
// And we sort them from highest to lowest (so that number 0 is the best)
std::sort(SupportedModes.begin(), SupportedModes.end(), CompareModes());
}
} // namespace sf
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