CODEWITHSUNDEEP
graphicsoperating-systemgpux11framebuffer
happycoder
happycoder

Reputation: 33

Bypassing operating system and drawing to frame buffer of GPU

Is it possible to directly modify frame buffer of a GPU without using any operating system or OpenGl/directX calls but just GPU driver calls?

Basically I want to overlay some animations on my screen and don't want operating system to overwrite any pixels of it.

Upvotes: 0

Views: 758

Answers (1)

user6558785
user6558785

Reputation:

Yes, it's possible by using the Dumb-Buffer API of the DRM (Direct Rendering Manager) driver.

You should definitely see David Herrmann's tutorials and download his examples. He only forgot to initialize the gamma ramps.

Upvotes: 1

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