Display Class Reference

#include <Display.hpp>

Classes
class	Pixel
struct	PixelEntry

Public Member Functions
	Display (int width, int height)
	~Display ()
void	init ()
void	run ()
void	pushPixel (int x, int y, const Pixel &px)
void	notifyDone ()

Private Attributes
int	_width
int	_height
std::queue< PixelEntry >	_pixelQueue
std::mutex	_queueMtx
std::condition_variable	_queueCv
bool	_done = false
sf::RenderWindow	_window
sf::Texture	_texture
sf::Sprite	_sprite

Detailed Description

Definition at line 16 of file Display.hpp.

Constructor & Destructor Documentation

Display()

Display::Display	(	int	width,
		int	height )

Definition at line 9 of file Display.cpp.

                                      : _width(width), _height(height)
{}

References _height, and _width.

~Display()

Display::~Display ( )

inline

Definition at line 19 of file Display.hpp.

{};

Member Function Documentation

init()

void Display::init

(

)

Definition at line 12 of file Display.cpp.

{
    _window.create(sf::VideoMode((unsigned)_width, (unsigned)_height), "Raytracer");
    _texture.create(_width, _height);
    _sprite.setTexture(_texture, true);
}

References _height, _sprite, _texture, _width, and _window.

notifyDone()

void Display::notifyDone

(

)

Definition at line 26 of file Display.cpp.

{
    std::lock_guard<std::mutex> lock(_queueMtx);
    _done = true;
    _queueCv.notify_one();
}

References _done, _queueCv, and _queueMtx.

pushPixel()

void Display::pushPixel	(	int	x,
		int	y,
		const Pixel &	px )

Definition at line 19 of file Display.cpp.

{
    std::lock_guard<std::mutex> lock(_queueMtx);
    _pixelQueue.push(PixelEntry{x, y, px});
    _queueCv.notify_one();
}

References _pixelQueue, _queueCv, and _queueMtx.

run()

void Display::run

(

)

Definition at line 33 of file Display.cpp.

{
    sf::Image image;
    image.create(_width, _height, sf::Color::Black);
 
    while (_window.isOpen()) {
        sf::Event ev;
        while (_window.pollEvent(ev)) {
            if (ev.type == sf::Event::Closed)
                _window.close();
            else if (ev.type == sf::Event::KeyPressed) {
                if (ev.key.code == sf::Keyboard::Enter)
                    _window.close();
            }
        }
 
        {
            std::unique_lock<std::mutex> lock(_queueMtx);
            _queueCv.wait(lock, [&]{ return !_pixelQueue.empty() || _done; });
 
            while (!_pixelQueue.empty()) {
                auto entry = _pixelQueue.front();
                _pixelQueue.pop();
                image.setPixel(entry.x, entry.y, sf::Color(entry.color.r, entry.color.g, entry.color.b));
            }
        }
 
        _texture.update(image);
        _window.clear();
        _window.draw(_sprite);
        _window.display();
    }
}

References _done, _height, _pixelQueue, _queueCv, _queueMtx, _sprite, _texture, _width, and _window.

Member Data Documentation

_done

bool Display::_done = false

private

Definition at line 45 of file Display.hpp.

_height

int Display::_height

private

Definition at line 36 of file Display.hpp.

_pixelQueue

std::queue<PixelEntry> Display::_pixelQueue

private

Definition at line 42 of file Display.hpp.

_queueCv

std::condition_variable Display::_queueCv

private

Definition at line 44 of file Display.hpp.

_queueMtx

std::mutex Display::_queueMtx

private

Definition at line 43 of file Display.hpp.

_sprite

sf::Sprite Display::_sprite

private

Definition at line 49 of file Display.hpp.

_texture

sf::Texture Display::_texture

private

Definition at line 48 of file Display.hpp.

_width

int Display::_width

private

Definition at line 35 of file Display.hpp.

_window

sf::RenderWindow Display::_window

private

Definition at line 47 of file Display.hpp.

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The documentation for this class was generated from the following files:

• include/Display.hpp
• src/Display.cpp