Messages

1

Audio / Static sf::Sound cause the application to crash on MAC

« on: September 26, 2014, 08:34:21 pm »

Hi,

While I was creating a game on Mac OS X I noticed that if I declare a static sf :: Sound variable and I set a SoundBuffer to it, then when I close the application it crash with bad errors.
The problem is in the sf::Sound destructor.
On windows everything works fine (with visual studio compiler).

Here is minimal code example:

//=======================
#include <SFML/Window.hpp>
#include <SFML/Audio.hpp>
#include <map>

//=======================
#include "ResourcePath.hpp"

//======================
using namespace sf;

//static sound declaration
static sf::Sound snd;

int main()
{
    sf::Window win;
        win.create(VideoMode(1100, 700), "TEST", Style::Titlebar | Style::Close);
        win.setVerticalSyncEnabled(true);

    sf::SoundBuffer sndb;
    sndb.loadFromFile(resourcePath() + "Greenkey.wav");
    snd.setBuffer(sndb);
    snd.play();

        while (win.isOpen())
        {
                Event ev;
                while (win.pollEvent(ev)) {
                        switch (ev.type) {
                        case Event::Closed:
                                win.close();
                                break;
                        }
                }

                win.display();
        }

        return EXIT_SUCCESS;
}
 

Here is what XCode says:
https://www.dropbox.com/s/qgy36in0bjkytbp/Prove.png?dl=0

2

Graphics / Re: OpenGL application lag

« on: January 10, 2014, 08:54:25 pm »

Hey guys! I have resolved the issue. SFMl was managing the frames 2 times because i was calling window.setVerticalSyncEnabled(true) at the beginning of the programme and in the event 'lost focus' i was calling window.setFrameratelimit(30).

I have a question.. Whith VSYNC the framerate is set to 60? I can change it?

3

Graphics / Re: OpenGL application lag

« on: January 09, 2014, 08:26:44 pm »

I have a costant 60 FPS. The elapsed time for each frame look like that (in microsecond) :

17680
17675
17282
17679
16684
16999
17678
17390
.....

I checked and there are no rounding issues.
For the drivers settings... OS X Mavericks does not allow users to touch the graphics card driver.
I tried to use glflush () and glfinish () after every draw but there is no difference.

Maybe i'm drawing in a wrong way?

4

Graphics / Re: OpenGL application lag

« on: January 09, 2014, 07:16:00 pm »

I made a video:
Watch carefully at the logo that rotates and the view when is moving.

5

Graphics / Re: OpenGL application lag

« on: January 09, 2014, 06:03:37 pm »

It happens something like that, all the objects that are moving, (like rotating or simply when moving the view using glulookat() ) they move like the speed is irregular, like there is a delay or something like that.
In the video the movement of the view is not smooth.

6

Graphics / Re: OpenGL application lag

« on: January 09, 2014, 05:44:24 pm »

This video shows my issue:


It's not mine but happen exactly the same thing, whit VSYNC and on 3 different MAC computers as I wrote above.

In the code I posted you can not see the Spritebatch class and the Sprite class...
I simply put every Sprite in a Sprite array and i draw everything with spritebatch.end() with Vertex array.

Sorry if I made any mistakes in writing, I'm Italian.

7

Graphics / Re: OpenGL application lag

« on: January 06, 2014, 08:46:49 pm »

Here a minimal code with a rotating quad that is a little bit laggy:

    sf::RenderWindow window(sf::VideoMode(800, 600), "Virtual Shock Testing",sf::Style::Default,settings);
   
    glEnable( GL_BLEND );
    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
   
    window.setVerticalSyncEnabled(true);
    window.setFramerateLimit(60);
   
    //--- OPENGL INITIALIZE ---
    //Perspective
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    glOrtho (0, 800, 600,0, 0, 1);
    glViewport(0,0,800,600);
    glMatrixMode (GL_MODELVIEW);
   
    glEnableClientState(GL_VERTEX_ARRAY);
    glEnableClientState(GL_COLOR_ARRAY);
   
    sf::Time time;
    sf::Clock clock;
   
    SpriteBatch spritebatch;
    Sprite test;
   
    test.SetColor(Color(1,0,0,1));
    test.SetTexture(0);
    test.SetTextureSource(Rectf(0,0,1,1));
    float rotation = 0;
   
    // Start the game loop
    while (window.isOpen())
    {
        // Process events
        sf::Event event;
        while (window.pollEvent(event))
        {
            // Close window : exit
            if (event.type == sf::Event::Closed) {
                window.close();
            }

            // Escape pressed : exit
            if (event.type == sf::Event::KeyPressed && event.key.code == sf::Keyboard::Escape) {
                window.close();
            }
        }
       
        rotation+=0.0001*time.asMicroseconds()/1000.00;
       
        test.SetPosition(Rect(200,200,400,400),Vector2i(400,400),rotation);
       
        window.clear();
       
        spritebatch.Begin();
        spritebatch.Draw(test);
        spritebatch.End();
       
        window.display();
       
        time = clock.restart();
    }
 

I'm not using network.

8

Graphics / OpenGL application lag

« on: January 06, 2014, 07:55:18 pm »

Hi,

I have a problem with my OpenGL application because i get some lag.
I set the VSync to true and the lag is reduced a lot but it is still present.
I set the limit of the frames to 60 and i get 16-17 millisecond elapsed time every frame.
The CPU usage is low  (5-10%) and the RAM usage is about 20 Mb.
I tested the application on 3 different computers (All macintosh) and the problem persist.

Specs of computers:

Mackbook pro 13"
OS : Maverick
Graphic Card : GeeForce 320M

Mackbook air 11"
OS : Maverick
Graphic Card : Intel HD 5000

Hackintosh
OS : MAverick
Graphic Card : AMD Radeon HD 6500;

9

General / Re: Sort Sprite List by Scale

« on: October 07, 2013, 07:37:52 pm »

I can not do it with those examples ... I'm not very good with C + +.
Can someone please show me an example with a list of sprites?

10

General / Sort Sprite List by Scale

« on: October 07, 2013, 06:09:28 pm »

Hi! I have a list of Sprite and i want to sort it by the scale of the sprite (sprite.getScale ()). How can I do it ?

11

Graphics / Re: CPU Performance, 2D Tile Based game

« on: October 06, 2013, 02:32:32 pm »

Now it works fine. My code was wrong.

12

Graphics / Re: CPU Performance, 2D Tile Based game

« on: October 05, 2013, 04:44:44 pm »

this is the code:

//SpriteBatch.h
#include<SFML\Graphics.hpp>

class SpriteBatch
{
public:
        SpriteBatch(void);
        ~SpriteBatch(void);

        void Begin(int Maxvertex);
        void Draw(sf::RenderWindow &window,sf::Texture &Texture,sf::Rect<int> &transform,sf::Rect<int> &Source,sf::Color &colora,sf::Color &colorb,sf::Color &colorc,sf::Color &colord,int deep);
        virtual void End(sf::RenderWindow &window,sf::Texture &Texture);

        sf::VertexArray vertexs;
        sf::Texture texture;
        int maxvertex;
        int cvertex;
};

//SpriteBatch.cpp
void SpriteBatch::Begin(int Max)
{
        //Vertex Array
        cvertex=0;
        maxvertex=Max;
        vertexs.setPrimitiveType(sf::Quads);
        vertexs.resize(maxvertex);
}

void SpriteBatch::Draw(sf::RenderWindow &window,sf::Texture &tx, sf::Rect<int> &transform,sf::Rect<int> &Source,sf::Color &colora,sf::Color &colorb,sf::Color &colorc,sf::Color &colord,int deep)
{

        //Position - Dimension
        vertexs[cvertex].position = sf::Vector2f(transform.left, transform.top);
        vertexs[cvertex+1].position = sf::Vector2f(transform.left+transform.width, transform.top);
        vertexs[cvertex+2].position = sf::Vector2f(transform.left+transform.width, transform.top+transform.height);
        vertexs[cvertex+3].position = sf::Vector2f(transform.left,transform.top+transform.height);

        //Texture
        vertexs[cvertex].texCoords = sf::Vector2f(Source.left,Source.top);
        vertexs[cvertex+1].texCoords = sf::Vector2f(Source.left+Source.width, Source.top);
        vertexs[cvertex+2].texCoords = sf::Vector2f(Source.left+Source.width,Source.top+Source.height);
        vertexs[cvertex+3].texCoords = sf::Vector2f(Source.left, Source.top+Source.height);

        //Color
        vertexs[cvertex].color = colora;
        vertexs[cvertex+1].color = colorb;
        vertexs[cvertex+2].color = colorc;
        vertexs[cvertex+3].color = colord;

        cvertex+=4;
        if (cvertex==maxvertex)
        {
                End(window,tx);
                cvertex=0;
        }

}

void SpriteBatch::End(sf::RenderWindow &window,sf::Texture &tx)
{
        window.draw(vertexs,&tx);
}
 

I set Maxvertex = 1024

13

Graphics / CPU Performance, 2D Tile Based game

« on: October 05, 2013, 01:44:24 pm »

Hi! I've recently started using SFML and I really like it a lot. I am translating my game from XNA to SFML and I noticed that the performance of SFML are lower in image rendering. I created a simple class for spritebatching (with vertex array) and I compared the performance with XNA.
10000 drawing sprites with the same texture:
- XNA: 60 FPS, about 4% CPU usage
- SFML: 60 FPS, about 11% CPU usage

is a problem of my code? can be fixed?
sorry for my bad english!