Constant fermium::hints::SDL_HINT_VIDEO_DOUBLE_BUFFER
source · pub const SDL_HINT_VIDEO_DOUBLE_BUFFER: &'static [u8];
Expand description
Tell the video driver that we only want a double buffer.
By default, most lowlevel 2D APIs will use a triple buffer scheme that
wastes no CPU time on waiting for vsync after issuing a flip, but introduces
a frame of latency. On the other hand, using a double buffer scheme instead
is recommended for cases where low latency is an important factor because we
save a whole frame of latency. We do so by waiting for vsync immediately
after issuing a flip, usually just after eglSwapBuffers
call in the
backend’s *_SwapWindow function.
Since it’s driver-specific, it’s only supported where possible and implemented. Currently supported the following drivers:
- KMSDRM (kmsdrm)
- Raspberry Pi (raspberrypi)