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30 lines
1.1 KiB
30 lines
1.1 KiB
.. _libweston-output:
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Outputs
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=======
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A :type:`weston_output` determines what part of the global compositor
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coordinate space will be composited into an image and when. That image is
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presented on the attached heads (weston_head).
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An output object is resposible for the framebuffer management, damage tracking,
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display timings, and the repaint state machine. Video mode, output scale and
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output transform are properties of an output.
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In display hardware, a weston_output represents a CRTC, but only if it has been
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successfully enabled. The CRTC may be switched to another during an output's
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lifetime.
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The lifetime of a weston_output is controlled by the libweston user.
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With at least a :type:`weston_head` attached, you can construct a
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:type:`weston_output` object which can be used by the compositor, by enabling
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the output using :func:`weston_output_enable`. The output **must not** be
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already enabled.
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The reverse operation, :func:`weston_output_disable`, should be used when there's
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a need to reconfigure the output or it will be destroyed.
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.. doxygengroup:: output
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:content-only:
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