Topics

1

Python / pysfml2-cython building problems

« on: May 16, 2011, 10:21:15 pm »

Hi!

I have some problems with building pysfml2-cython with mingw32 on windows. I am using Python27.

My building log (--compiler=mingw32 is default):

Code: [Select]

C:\Users\Philipp\Documents\C++\pysfml2-cython>python setup.py build_ext --inplac
e
running build_ext
cythoning sf.pyx to sf.cpp
building 'sf' extension
creating build
creating build\temp.win32-2.7
creating build\temp.win32-2.7\Release
C:\Program Files\CodeBlocks\MinGW\bin\gcc.exe -mno-cygwin -mdll -O -Wall -Ic:\Py
thon27\include -Ic:\Python27\PC -c sf.cpp -o build\temp.win32-2.7\Release\sf.o
sf.cpp: In function 'PyObject* __pyx_pf_2sf_11SoundBuffer_7samples___get__(PyObj
ect*)':
sf.cpp:7838: warning: comparison between signed and unsigned integer expressions

sf.cpp: In function 'void __Pyx_RaiseArgtupleInvalid(const char*, int, Py_ssize_
t, Py_ssize_t, Py_ssize_t)':
sf.cpp:38407: warning: unknown conversion type character 'z' in format
sf.cpp:38407: warning: format '%s' expects type 'char*', but argument 5 has type
 'Py_ssize_t'
sf.cpp:38407: warning: unknown conversion type character 'z' in format
sf.cpp:38407: warning: too many arguments for format
sf.cpp: In function 'void __Pyx_RaiseNeedMoreValuesError(Py_ssize_t)':
sf.cpp:38625: warning: unknown conversion type character 'z' in format
sf.cpp:38625: warning: format '%s' expects type 'char*', but argument 3 has type
 'Py_ssize_t'
sf.cpp:38625: warning: too many arguments for format
sf.cpp: In function 'void __Pyx_RaiseTooManyValuesError(Py_ssize_t)':
sf.cpp:38633: warning: unknown conversion type character 'z' in format
sf.cpp:38633: warning: too many arguments for format
sf.cpp: In function 'PyObject* __pyx_pf_2sf_5Image_14get_tex_coords(PyObject*, P
yObject*)':
sf.cpp:15063: warning: '__pyx_v_p' is used uninitialized in this function
writing build\temp.win32-2.7\Release\sf.def
All this should be okay even there are some warnings. But then:

Code: [Select]

C:\Program Files\CodeBlocks\MinGW\bin\g++.exe -mno-cygwin -mdll -static --entry
_DllMain@12 --output-lib build\temp.win32-2.7\Release\libsf.a --def build\temp.w
in32-2.7\Release\sf.def -s build\temp.win32-2.7\Release\sf.o -Lc:\Python27\libs
-Lc:\Python27\PCbuild -lsfml-graphics -lsfml-window -lsfml-audio -lsfml-system -
lpython27 -lmsvcr90 -o C:\Users\Philipp\Documents\C++\pysfml2-cython\sf.pyd
g++: build\temp.win32-2.7\Release\libsf.a: No such file or directory
error: command 'g++' failed with exit status 1
I don't get this. Shouldn't it build a file called libsf.a?

Can somebody help?

2

Graphics / Crazy bug using OpenGL lighting and RenderWindow

« on: May 12, 2011, 10:10:19 pm »

After I tried a lot to solve it I decided to show this to you guys.

I am pretty sure the code should be correct this way.
Sorry, but it can't be smaller:

Code: [Select]

#include <SFML/Graphics.hpp>
#include <SFML/OpenGL.hpp>

int main()
{
    sf::Clock clock;
    sf::RenderWindow App(sf::VideoMode(800, 600, 32), "SFML + OpenGL", sf::Style::Default, sf::ContextSettings(32));

    glEnable(GL_DEPTH_TEST);
    glDepthMask(GL_TRUE);
    glClearDepth(1.f);

    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(70.f, App.GetWidth() / App.GetHeight(), 1.f, 600.f);

    glEnable(GL_LIGHTING);
    glEnable(GL_LIGHT0);

    GLfloat light_ambient[] = {0.0, 0.0, 0.0, 1.0};
    GLfloat light_diffuse[] = {1.0, 1.0, 1.0, 1.0};
    GLfloat light_specular[] = {1.0, 1.0, 1.0, 1.0};
    GLfloat light_position[] = {0.0, 0.0, 1.0, 0.0};

    glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
    glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    float red[] = {102.f/255.f, 51.f/255.f, 51.f/255.f};
    float blue[] = {51.f/255.f, 51.f/255.f, 102.f/255.f};
    float green[] = {51.f/255.f, 102.f/255.f, 51.f/255.f};


    while (App.IsOpened())
    {
        sf::Event Event;
        while (App.PollEvent(Event))
        {
            if (Event.Type == sf::Event::Closed)
                App.Close();

            if (Event.Type == sf::Event::Resized)
                glViewport(0, 0, Event.Size.Width, Event.Size.Height);
        }

        App.SaveGLStates();
        App.Clear(sf::Color(0, 0, 0, 1));
        App.RestoreGLStates();

        //glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
        glClear(GL_DEPTH_BUFFER_BIT);

        glMatrixMode(GL_MODELVIEW);
        glLoadIdentity();
        glTranslatef(0.f, 0.f, -200.f);
        glRotatef(clock.GetElapsedTime() * 50, 1.f, 0.f, 0.f);
        glRotatef(clock.GetElapsedTime() * 30, 0.f, 1.f, 0.f);
        glRotatef(clock.GetElapsedTime() * 90, 0.f, 0.f, 1.f);

        // Draw a cube
        glBegin(GL_QUADS);

            glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, red);
            glColor3f(1.f, 0.f, 0.f);
            glNormal3f(0.f, 0.f, -1.f);
            glVertex3f(-50.f, -50.f, -50.f);
            glVertex3f(-50.f,  50.f, -50.f);
            glVertex3f( 50.f,  50.f, -50.f);
            glVertex3f( 50.f, -50.f, -50.f);

            glColor3f(1.f, 0.f, 0.f);
            glNormal3f(0.f, 0.f, 1.f);
            glVertex3f(-50.f, -50.f, 50.f);
            glVertex3f( 50.f,  -50.f, 50.f);
            glVertex3f( 50.f,  50.f, 50.f);
            glVertex3f(-50.f,  50.f, 50.f);

            glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, green);
            glColor3f(0.f, 1.f, 0.f);
            glNormal3f(-1.f, 0.f, 0.f);
            glVertex3f(-50.f, -50.f, -50.f);
            glVertex3f(-50.f,  50.f, -50.f);
            glVertex3f(-50.f,  50.f,  50.f);
            glVertex3f(-50.f, -50.f,  50.f);

            glColor3f(0.f, 1.f, 0.f);
            glNormal3f(1.f, 0.f, 0.f);
            glVertex3f(50.f, -50.f, -50.f);
            glVertex3f(50.f, -50.f,  50.f);
            glVertex3f(50.f,  50.f,  50.f);
            glVertex3f(50.f,  50.f, -50.f);

            glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, blue);
            glColor3f(0.f, 0.f, 1.f);
            glNormal3f(0.f, -1.f, 0.f);
            glVertex3f(-50.f, -50.f,  50.f);
            glVertex3f(-50.f, -50.f, -50.f);
            glVertex3f( 50.f, -50.f, -50.f);
            glVertex3f( 50.f, -50.f,  50.f);

            glColor3f(0.f, 1.f, 0.f);
            glNormal3f(0.f, 1.f, 0.f);
            glVertex3f(-50.f, 50.f,  50.f);
            glVertex3f(-50.f, 50.f, -50.f);
            glVertex3f( 50.f, 50.f, -50.f);
            glVertex3f( 50.f, 50.f,  50.f);

        glEnd();

        App.Display();
    }
    return EXIT_SUCCESS;
}


The bug is:
The two red quads don't show up.

This only happens when:
- you use lighting
- you use sf::RenderWindow instead of sf::Window (I wanted to display text, so I had to change to RenderWindow)

Crazy thing about it:
- When you change it to this the blue quads won't show up:

Code: [Select]

float blue[] = {51.f/255.f, 51.f/255.f, 102.f/255.f};
float red[] = {102.f/255.f, 51.f/255.f, 51.f/255.f};
float green[] = {51.f/255.f, 102.f/255.f, 51.f/255.f};

I am using SFML2 and CodeBlocks + MinGW.

Any ideas?

3

General / Problems with linking SFML2 static

« on: May 08, 2011, 09:18:17 pm »

Hey. I have some problems linking a test .cpp against the static sfml2 libraray with codeblocks.

Code: [Select]

// No comments on the code please xD
#include <SFML/System.hpp>

int main ()
{
    sf::Clock clock;
    return clock.GetElapsedTime();
}


I build the SFML2 Lib static and dynamic without any errors with cmake and the mingw32 makefile.

When I link against "libsfml-system-s.a" there is this error:

obj\Release\main.o:main.cpp|| undefined reference to `_imp___ZN2sf5ClockC1Ev'|
obj\Release\main.o:main.cpp|| undefined reference to `_imp___ZNK2sf5Clock14GetElapsedTimeEv'|
||=== Build finished: 2 errors, 0 warnings ===|

When I link against "libsfml-system.a" there is no error. Also the examples work when they are created with the static library. Whats up with that?

4

General / Question about "make all"

« on: April 30, 2011, 04:35:02 pm »

Is there a reason why "make all" only creates targets that produce a binary?
Wouldn't it be useful to produce the doc target, too?

5

Window / A way to get sf::Style of an existing window

« on: April 21, 2010, 07:29:11 pm »

Is there a way to get the style of a window that exists?
I want to check if my window is fullscreen and didn't find a function for that purpose in the documentation.

6

Network / Client managing

« on: February 18, 2010, 06:16:12 pm »

Hi!

I am writing a little Server application.
My Problem is that the Socket for my client disconnects when I am storing my Socket in a vector and I push back an other object.

Code:

Code: [Select]

vector<Player> Clients;

void Accept(void * UserData)
{
    sf::SocketTCP Listener;
    Player NewClient;

    if (!Listener.Listen(PORT))
        cerr << "Clouldn't Bind to port: " << PORT << endl;

    while (true)
    {
        Clients.push_back(NewClient);
        Listener.Accept(Clients.back().Socket);
   
        cout << "New connection. Address: "  << endl;
    }
   
    Listener.Close();
}

My player class:

Code: [Select]

class Player {
    public:
       
        ~Player()
        {
            Socket.Close();
        }

        sf::SocketTCP Socket;
        sf::IPAddress Address;

    private:

};

So the problem occurs when "Clients.push_back(NewClient);" is called the second time. I don't know why but the Socket "Clients.at(0).Socket" just disconnects.

I hope somebody can help me.

7

General / [soloved] Linking Problem - Debug Mode - Windows

« on: October 09, 2009, 04:31:23 pm »

Hello!

I am trying to compile a simple SFML application.
I am working with Visual Studio 2008 Express under Vista.

My steps:
1) Create a console Project
2) Write the code:

Code: [Select]

#include <SFML/Window.hpp>

int main()
{
    // Create the main window
    sf::Window App(sf::VideoMode(640, 480, 32), "SFML", sf::Style::Close);

    App.ShowMouseCursor(false);

    // Start main loop
    while (App.IsOpened())
    {
        // Process events
        sf::Event Event;
        while (App.GetEvent(Event))
        {
            // Close window : exit
            if (Event.Type == sf::Event::Closed)
                App.Close();

            // Escape key : exit
            if ((Event.Type == sf::Event::KeyPressed) && (Event.Key.Code == sf::Key::Escape))
                App.Close();
        }

        App.Display();
    }

    return EXIT_SUCCESS;
}

3) Compile

I am linking to these libraries:
Debug:
sfml-system-s-d.lib sfml-window-s-d.lib
Release:
sfml-system-s.lib sfml-window-s.lib

Everything works in the Release mode. But there are some warnings when I compile in the Debug mode:

sfml-system-s-d.lib(Platform.obj) : warning LNK4099: PDB "vc90.pdb" wurde nicht mit "..\..\xxx\lib\vc2008\sfml-system-s-d.lib" oder an "xxx\win\Debug\vc90.pdb" gefunden; Objekt wird verknüpft, als ob keine Debuginformationen vorhanden wären.

Its kind of sad that it is in German

Well thats only a warning. I can run it without problems. But just one time. When I rebuild it the Program asks for a .dll:
MSVCP90D.dll

Very Strange...

Can anybody help me?
Greetings

Edit:
I solved it! I just had to build sfml by myseld and it worked fine.