Re: [Speed-dreams-devel] [speed-dreams:tickets] #916 Auto-detection of openGL features with SDL2 not working

[Joe <min...@ea...>]

On 11/27/2015 9:03 PM, Tom Low-Shang wrote:
> On Sat, Nov 28, 2015 at 01:13:37AM +0000, beaglejoe wrote:
>> On my old hardware, AA is a bit of a framerate killer.
>> I have an NVidia GeForce 6150SE (Windows Vista)
>> AA setting
>> disabled = 26.9 fps
>> 2x         = 17.6
>> 4x         = 11.4
>> 8x         = 5.4
>> 16x       = 2.2
>> It looks really good at 4x, but I am going to have to get a new machine.
> Which track? ssggraph? What CPU? I'm surprised at the very low frame
> rates for the disabled setting. Yes, the hardware is old, but I expect
> Windows graphics drivers to extract the best out the GPU.
Corkscrew (practice) Century R11B
ssggraph
AMD Athlon 64X2 Dual Core 5000+ 2.6GHz
32-bit Vista Ultimate
Also of note this is a debug build of Speed Dreams (and Debug build of 
all dependencies)

>
>> On OS X (Yosemite w/Intel graphics)
>> disabled = 60.0 fps
>> 2x         = 60.0
>> 4x         = 60.0
>> 8x         = 44.4
>> It seems that SDL2 for OS X, may be capping the framerate at 60.
> https://wiki.libsdl.org/SDL_GL_SetSwapInterval.
>
> If it works, it would be useful option to offer the user.

SDL_GL_SetSwapInterval(0);

On OS X (Yosemite w/Intel graphics)
disabled = 102.0 fps
2x         = 65.0
4x         = 67.0
8x         = 50.0
It seems that SDL2 for OS X, may be capping the framerate at 60.

>