Messages

1

Window / Re: switching from 2.3.2 to 2.4.0 -> loading texture from sf::Thread now crashes

« on: September 25, 2016, 03:40:05 pm »

it works fine now with it 

thank you very much!

2

Window / switching from 2.3.2 to 2.4.0 -> loading texture from sf::Thread now crashes

« on: September 24, 2016, 06:17:42 pm »

Hello,

My program was running fine with sfml 2.3.2 but after updating it didn't work anymore.
after some debugging I came to the conclusion that trying to use sf::Texture in a sf::Thread doesn't work anymore.
I used sf::Thread to call a method that loads my texture while the current thread would keep running , allowing me to animate the loading screen without it freezing while the files were loading

void Media::load(void (*f)()){
// ...
    delete t;
    t = new sf::Thread(f);
    t->launch();
}
 

then the f() function loads some textures and creates sf::Sprite from them
but it doesn't work anymore.

as soon as I try to create a sf::Texture in the f() function it crashes.

I was previously using sfml 2.3.2 with TDM 4.7.1
I now use 2.4.0 with TDM 4.9.2

my program still works normally if I simply call f(); directly in the loading function, but that breaks my loading screens

information from debugging tool  when trying to use texture from thread (also see attachment):

Program received signal SIGSEGV, Segmentation fault.
In ntdll!RtlUlonglongByteSwap () (C:\Windows\system32\ntdll.dll)
217     D:\sfml-release\_Sources\SFML\src\SFML\Window\GlContext.cpp: No such file or directory.
#12 0x6e181f76 in sf::priv::GlContext::ensureContext () at D:\sfml-release\_Sources\SFML\src\SFML\Window\GlContext.cpp:217
Debugger finished with status 0
 

Is there a solution other than "stop using threads" ?

Thanks in advance!