Messages

1

General / Re: My std::vector just won't free memory (of the textures etc.)

« on: October 21, 2015, 09:50:10 am »

Well, there is the class asteroid in the class planet_system. asteroid had this to handle the texture:

class asteroid(sf::Texture & tex_asteroid)
{
    sf::Texture &texref = sf::Texture();
    //...
}

and this was in the Constructor of asteroid:

texref = tex_asteroid;

I don't know exactly why these pointers caused this kind of problem, but I changed it so that there were no texture opjects or pointers anymore in asteroid and my memory problem disappeared 

Because the asteroids were stored in an vector inside of planet_system, I could guesss, that maybe the clearing and shrin_to_fit-ing of the planet_system-vector did not affect the asteroid-vector inside it?

2

General / Re: My std::vector just won't free memory (of the textures etc.)

« on: October 20, 2015, 11:17:05 pm »

I just realised that the problem was in an entirely different class which was stored in it. So I fixed it.
There was a problem with pointers in this other class.

Thanks for your patient help (and sorry if my questions were a bit obscure  )

3

General / Re: My std::vector just won't free memory (of the textures etc.)

« on: October 20, 2015, 10:10:24 pm »

@eXpl0it3r

I know that clear does not deallocate memory, that is why I also use shrink_to_fit which does (at least I hope).

I don't know why, but I can't recreate the problem with the needed bits of my code? I does always work, so there is either a memory problem with the vectors and textures within the vector or someplace else. I will continue the search.
Just to be sure: If there is a vector of class b in class a, and I deallocate the memory of a vector of class a, the vector of class b within this vector is also gone, is it not?

4

General / Re: My std::vector just won't free memory (of the textures etc.)

« on: October 20, 2015, 09:13:07 pm »

@Satus

It is not much more than this:

#include <iostream>

int main()
{
        std::vector <int> vector;
        for (long int i = 0; i < 800000; i++)
        {
                vector.push_back(12);
        }

        int cinbuffer;
        std::cin >> cinbuffer;

        vector.clear();

        std::cin >> cinbuffer;


        return 0;
}

(!) Although I just realised that it actually does free the memory when I also do
vector.shrink_to_fit();

But It doesn't work the same way in my game when I do the same thing, so my question is, if there are maybe problems with the textures inside planet_system etc which are not being freed.

5

General / Re: My std::vector just won't free memory (of the textures etc.)

« on: October 20, 2015, 08:43:40 pm »

@AlexAUT
Well, I basically already said everything of importance;

i have the class planet_system:

class planet_system
{
        public:
                planet_system(int intype, sf::Texture & texture_asteroid);
                void Render(sf::RenderWindow &window, sf::RenderTexture & rtex, int centerviewx, int centerviewy, sf::Vector2f viewsize, sf::Texture tex);
                void RenderParalax(sf::RenderWindow &window, sf::RenderTexture & rtex, int centerviewx, int centerviewy);
                void Update();
                void UpdatePriceMarket();

                std::vector <cplanet> vecplanets;
                int anzahl_planets;

                std::vector <casteroidfield> vecasteroidfields;

                sf::Texture tex_back;
                sf::Sprite spr_back;

                sf::Texture tex_paralax1;
                sf::Sprite spr_paralax1;

                sf::Texture tex_paralax2;
                sf::Sprite spr_paralax2;

                float sizex;
                float sizey;

                int type;
                int id;
                std::string string_name;
};

and have this in the delceration of main:

std::vector <planet_system> vecplanetsystems;

and in the game loop i have this when the new level is loaded:

// Either this
vecplanetsystems = std::vector <planet_system> ();

//or this ( but both dont work)
vecplanetsystems.clear();
vecplanetsystems.shrink_to_fit();

planet_system newsystem1(system_crnt, texmngr.getRef("asteroid1"));
vecplanetsystems.push_back(newsystem1);

And the Memory just won't be freed.

(!) But even when I just have a simple main with a vector of integers, fill and clear it, it is the same problem.

6

General / My std::vector just won't free memory (of the textures etc.)

« on: October 20, 2015, 07:32:07 pm »

Hi forum!
So I use a class named 'planet_system' for game levels and put the current one in a std::vector <planet_system>. planet_system consistes of, among other things, sprites and textures. To load the next level I clear the vector and load a new planet_system to put in to the vector. But every time this happens the memory just keeps rising as if the vector is not cleared but extended.
I have tried a lot of methods to free the memory of this vector like

        vecplanetsystems.clear();
        vecplanetsystems.shrink_to_fit();

or

        vecplanetsystems = std::vector <planet_system> ();

but nothing changes.
Then I had the idea that maybe the sprites and textures of the SFML library are not succesfully deleted by these methods (?) but im not sure.

I hope you can help me.
Thanks in advance,
 Brix2Brix

Edit:
My OS: Windows 7 64Bit
SFML version: 2.3.1
Compiler: Visual Studio 2015
Compiling for Windows x68