Method GetVideoModes

PanzerChasm/system_window.cpp:709–749

}

void SystemWindow::GetVideoModes()
{
	const int display_count= SDL_GetNumVideoDisplays();
	if( display_count <= 0 )
		return;

	displays_video_modes_.reserve( static_cast<unsigned int>(display_count) );

	for( int d= 0; d < display_count; d++ )
	{
		const int display_mode_count= SDL_GetNumDisplayModes( d );
		if( display_mode_count <= 0 )
			continue;

		displays_video_modes_.emplace_back();
		VideoModes& video_modes= displays_video_modes_.back();

		for( int m= 0; m < display_mode_count; m++ )
		{
			SDL_DisplayMode mode;
			const int result= SDL_GetDisplayMode( d, m, &mode );
			if( result < 0 )
				continue;
			if( !( SDL_BITSPERPIXEL( mode.format ) == 24 || SDL_BITSPERPIXEL( mode.format ) == 32 ) ||
				mode.refresh_rate <= 0 )
				continue;

			// SDL sorts modes by width, height, bpp, freq.
			// use it and join modes with same resolution.
			const Size2 size( mode.w, mode.h );
			if( video_modes.empty() ||
				size != video_modes.back().size )
			{
				video_modes.emplace_back();
				video_modes.back().size= size;
			}

			video_modes.back().supported_frequencies.emplace_back( mode.refresh_rate );
		}
	}
}

void SystemWindow::UpdateBrightness()
{