How to use null backend?

[GuilhermeGS2]

(08-18-2017 01:32 PM)Asferot Wrote:  Ummm.... Thats not how any of this works. Null is null. As in, its 0. No backend. There is 100% certainty that you are NOT running null backend. Unless you like to play your games without video.

I checked Dolphin codes, they have a library for null just like they have for OpenGL, DirectX, Vulkan etc. To create a null backend is needed to make everything else work unless video output, if just set a nonexistent backend probably you'll get an error.

Null backend is used for testers or even devs who want to test the CPU power, as it doesn't depend on any graphic API, there's no bottleneck or something like this.

Remember that "0" means OpenGL backend on PPSSPP.

Code:

(...)
enum class GPUBackend {
    OPENGL = 0,
    DIRECT3D9 = 1,
    DIRECT3D11 = 2,
    VULKAN = 3,
};
(...)