Messages

1

SFML projects / Re: Witch Blast (dungeon crawl shooter)

« on: April 20, 2014, 06:57:18 am »

Nice music=D

2

Graphics / Re: sf::Text shift

« on: January 14, 2013, 11:23:11 am »

Thanks!

3

Graphics / sf::Text shift

« on: January 14, 2013, 11:07:45 am »

Hello!

#include <SFML/system.hpp>
#include <SFML/graphics.hpp>
int main()
{
        sf::Font font;
        font.loadFromFile("fallout_decayed.ttf");

        sf::Text text("EXAMPLE",font, 50 );
        text.setPosition( 100, 100 );
        text.setColor(sf::Color::Red);

        sf::RectangleShape rectangle( sf::Vector2f( text.getGlobalBounds().width, text.getGlobalBounds().height )  );
        rectangle.setPosition(100,100);
       
        sf::RenderWindow window( sf::VideoMode(400, 300), "EXAMPLE" );

        while( window.isOpen() )
        {
                sf::Event event;
                while (window.pollEvent(event))
                {
                        if (event.type == sf::Event::Closed)
                                window.close();
                }
                window.clear();
                window.draw( rectangle );
                window.draw(text);
                window.display();
        }
        return 0;      
}
 

Why is the text shifted from its position?

4

Graphics / Re: Divide by zero in sf::RenderWindow::draw SFML 2.0

« on: January 11, 2013, 02:05:52 pm »

Thanks

It also allocates the objects dynamically

Yes, but it frees allocated memory itself.

Btw having two variables with nearly the same names (states vs states_) is a bit misleading.

It's my old illness/=

5

Graphics / Divide by zero in sf::RenderWindow::draw SFML 2.0

« on: January 11, 2013, 01:41:25 pm »

Hello!
In my simple button class I store textures and sprites in

std::vector< std::pair< sf::Sprite , sf::Texture > > states;

It works, but some times i've got this:
Unhandled exception at 0x0f6d2382 in D_D.exe: 0xC0000094: Integer division by zero.
on

 target.draw(  states [ pos ].first, states_ );

It happens when size of states > 3.  I think sprite's link to texture become not valide when std::vector reallocate his memory .

I don't want to use dynamic memory or std::vector::reserve to solve it.
Are there any other solution?

Sorry for my English

6

System / Re: vector<sf::thread *> = memory leak

« on: May 19, 2012, 03:08:18 pm »

Problem is solved!
Program I used finds leaks in code without SFML.
Sorry for claiming

7

System / Re: vector<sf::thread *> = memory leak

« on: May 19, 2012, 01:51:05 pm »

Are you sure there's a memory leak (and not just the allocation in the Windows Task Manager)? How did you measure it?

Yes, I am. Intel Parallel Studio.

8

System / Re: vector<sf::thread *> = memory leak

« on: May 19, 2012, 01:35:51 pm »

#include<SFML\Graphics.hpp>
#include <vector>
#include<iostream>
#include <Windows.h>
std::vector < std::pair< sf::Thread * , int> > threadArray;
void loop( int id)
{
        //empty window
        sf::RenderWindow window(sf::VideoMode(800, 400, 32), "", 4);
        while ( window.isOpen() )
        {
                sf::Event event;
                while (window.pollEvent(event))
                {
                        if ((event.type == sf::Event::Closed) ||
                                ((event.type == sf::Event::KeyPressed) && (event.key.code == sf::Keyboard::Escape)))
                        {
                                window.close();
                                break;
                        }
                }
                window.clear(sf::Color::White);
                window.display();
        }
        //mark thread as ended
        for( int i=0; i<threadArray.size(); i++ )
        {
                if(threadArray[i].second == id)
                        threadArray[i].second = -1;
        }
};
int main()
{
        sf::RenderWindow window( sf::VideoMode(800, 400, 32), "memory leak example", 4);
        window.setPosition(sf::Vector2i( 0,0) );
        int threadId = 0;
        while ( window.isOpen() )
        {
                sf::Event event;
                while (window.pollEvent(event))
                {
                        if ((event.type == sf::Event::Closed) ||
                                ((event.type == sf::Event::KeyPressed) && (event.key.code == sf::Keyboard::Escape)))
                        {
                                window.close();
                                break;
                        }
                        if(event.type == event.MouseButtonPressed)
                        {
                                if(event.mouseButton.button == sf::Mouse::Left)
                                {

                                        threadArray.push_back( std::pair< sf::Thread* , int >( new sf::Thread( &loop, threadId ), threadId ) );
                                        threadArray.back().first->launch();
                                        Sleep(100);
                                        threadId++;
                                }
                        }
                }
                for( int i=0; i < threadArray.size(); i++ )
                {
                        if(threadArray[i].second == -1)
                        {
                                delete threadArray[i].first;
                                threadArray.erase( threadArray.begin() + i );
                                i = 0;
                        }
                }
                window.clear(sf::Color::White);
                window.display();
        }
        return EXIT_SUCCESS;
}


 

This code with regular deallocating without using ended threads has the same problem.

Why don't you write a class that stores a window and its own thread? Then you can just have a container with elements of this class, and don't need questionable code to reuse threads.

It's not that code where I noticed the problem.
I tried to write simple example which illustrate trouble. Sorry if it is not good.

9

System / Re: vector<sf::thread *> = memory leak

« on: May 19, 2012, 01:12:08 pm »

I don't use delete because it's not necessary. Ended threads are used again.

thread class is noncopyable and has no move semantics. [/tt].

It's main problem.

10

System / vector<sf::thread *> = memory leak

« on: May 19, 2012, 12:50:58 pm »

Hello!
I use SFML 2.0 RC (17.05.2012).
This program opens new subwindow when main window is clicked.

#include<SFML\Graphics.hpp>
#include <vector>
#include<iostream>
#include <Windows.h>
std::vector < std::pair< sf::Thread * , int> > threadArray;
void loop( int id)
{
        //empty window
        sf::RenderWindow window(sf::VideoMode(800, 400, 32), "", 4);
        while ( window.isOpen() )
        {
                sf::Event event;
                while (window.pollEvent(event))
                {
                        if ((event.type == sf::Event::Closed) ||
                                ((event.type == sf::Event::KeyPressed) && (event.key.code == sf::Keyboard::Escape)))
                        {
                                window.close();
                                break;
                        }
                }
                window.clear(sf::Color::White);
                window.display();
        }
        //mark thread as ended
        for( int i=0; i<threadArray.size(); i++ )
        {
                if(threadArray[i].second == id)
                        threadArray[i].second = -1;
        }
};
int main()
{
        sf::RenderWindow window( sf::VideoMode(800, 400, 32), "memory leak example", 4);
        window.setPosition(sf::Vector2i( 0,0) );
        int threadId = 0;
        while ( window.isOpen() )
        {
                sf::Event event;
                while (window.pollEvent(event))
                {
                        if ((event.type == sf::Event::Closed) ||
                                ((event.type == sf::Event::KeyPressed) && (event.key.code == sf::Keyboard::Escape)))
                        {
                                window.close();
                                break;
                        }
                        if(event.type == event.MouseButtonPressed)
                        {
                                if(event.mouseButton.button == sf::Mouse::Left)
                                {
                                        int i=0;
                                        //use ended
                                        for(; i < threadArray.size(); i++)
                                        {
                                                if( threadArray[i].second == -1 )
                                                {
                                                        threadArray[i].first->launch();
                                                        threadArray[i].second = i;
                                                        break;
                                                }
                                        }
                                        //or create new thread
                                        if( i== threadArray.size() )
                                        {
                                                threadArray.push_back( std::pair< sf::Thread* , int >( new sf::Thread( &loop, threadId ), threadId ) );
                                                threadArray.back().first->launch();
                                                Sleep(100);
                                                threadId++;
                                        }
                                }
                        }
                }
                window.clear(sf::Color::White);
                window.display();
        }
        return EXIT_SUCCESS;
}
 

It works, but I noticed memory leak about 3mb per new subwindow.
I suppose it's incorrect to store threads in dynamic memory, but I have not any idea how to do it differently.
How can I solve this problem?
Thank you for your help and sorry for my English.

11

Graphics / color line SFML2

« on: March 30, 2012, 12:32:18 pm »

Hello,
sorry for silly question, but how to create color line in SFML2? VertexArray doesn't have setColor method.