Exemple #1
0
GPUInfos Module::discover() const
{
    GPUInfos result;
    GPUInfo defaultInfo( "GLX" );

    const char* displayEnv = getenv( "DISPLAY" );
    if( displayEnv && displayEnv[0] != '\0' )
    {
        const std::string display( displayEnv );
        if( queryDisplay_( display, defaultInfo ))
        {
            defaultInfo.flags = GPUInfo::FLAG_DEFAULT;
            result.push_back( defaultInfo );
#ifdef __APPLE__
            // OS X only has one X server, but launchd magic makes duplicate
            // detection hard
            return result;
#endif
        }
    }

    // try x servers :0 - :n
    for( unsigned i = 0; i < std::numeric_limits< unsigned >::max() ; ++i )
        // x screens :n.0 - :n.m
        for( unsigned j = 0; j < std::numeric_limits< unsigned >::max(); ++j )
        {
            std::stringstream stream;
            stream <<  ':' << i << '.' << j;

            GPUInfo info( "GLX" );
            if( queryDisplay_( stream.str(), info ))
            {
                if( info != defaultInfo )
                    result.push_back( info );
            }
            else if( j == 0 && i > TRY_PORTS )
                // X Server does not exist, stop query
                return result;
            else // X Screen does not exist, try next server
                break;
        }
    return result;
}
Exemple #2
0
GPUInfos Module::discover() const
{
    GPUInfos result;
    GPUInfo defaultInfo( "GLX" );

    const char* displayEnv = getenv( "DISPLAY" );
    if( displayEnv && displayEnv[0] != '\0' )
    {
        const std::string display( displayEnv );
        if( queryDisplay_( display, defaultInfo ))
        {
            if( display[0] != ':' && display[0] != '/' /* OS X launchd */ )
            {
                defaultInfo.port = GPUInfo::defaultValue;
                defaultInfo.device = GPUInfo::defaultValue;
            }
            result.push_back( defaultInfo );
        }
    }

    // try x servers :0 - :n
    for( unsigned i = 0; i < std::numeric_limits< unsigned >::max() ; ++i )
        // x screens :n.0 - :n.m
        for( unsigned j = 0; j < std::numeric_limits< unsigned >::max(); ++j )
        {
            std::stringstream stream;
            stream <<  ':' << i << '.' << j;

            GPUInfo info( "GLX" );
            if( queryDisplay_( stream.str(), info ))
            {
                if( info != defaultInfo )
                    result.push_back( info );
            }
            else if( j == 0 && i >= TRY_PORTS )
                // X Server does not exist, stop query
                return result;
            else // X Screen does not exist, try next server
                break;
        }
    return result;
}
Exemple #3
0
GPUInfos Module::discoverGPUs( FilterPtr filter )
{
    GPUInfos result;
    for( Module* module = stack_; module; module = module->impl_->next_ )
    {
        const GPUInfos infos = module->discoverGPUs_(); 
        for( GPUInfosCIter i = infos.begin(); i != infos.end(); ++i )
        {
            const GPUInfo& info = *i;
            if( !filter || (*filter)( result, info ))
                result.push_back( info );
        }
    }
    return result;
}