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https://gitlab.freedesktop.org/emersion/libliftoff.git
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52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
#ifndef LIFTOFF_H
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#define LIFTOFF_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <xf86drmMode.h>
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struct liftoff_display;
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struct liftoff_output;
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struct liftoff_layer;
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/**
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* Initialize libliftoff for a DRM node. The node is expected to have
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* DRM_CLIENT_CAP_UNIVERSAL_PLANES and DRM_CLIENT_CAP_ATOMIC enabled.
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*/
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struct liftoff_display *liftoff_display_create(int drm_fd);
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void liftoff_display_destroy(struct liftoff_display *display);
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/**
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* Build a layer to plane mapping and append the plane configuration to `req`.
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* Callers are expected to commit `req` afterwards and can read the layer to
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* plane mapping with `liftoff_layer_get_plane_id`.
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*/
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bool liftoff_display_apply(struct liftoff_display *display,
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drmModeAtomicReq *req);
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/**
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* Make the display manage a CRTC's planes. The returned output allows callers
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* to attach layers.
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*/
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struct liftoff_output *liftoff_output_create(struct liftoff_display *display,
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uint32_t crtc_id);
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void liftoff_output_destroy(struct liftoff_output *output);
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/**
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* Create a new layer on an output.
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*/
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struct liftoff_layer *liftoff_layer_create(struct liftoff_output *output);
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void liftoff_layer_destroy(struct liftoff_layer *layer);
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/**
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* Set a property on the layer. Any plane property can be set. If none of the
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* planes support the property, the layer won't be mapped to any plane.
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*/
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void liftoff_layer_set_property(struct liftoff_layer *layer, const char *name,
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uint64_t value);
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/**
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* Retrieve the plane mapped to this layer. Zero is returned if no plane is
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* mapped.
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*/
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uint32_t liftoff_layer_get_plane_id(struct liftoff_layer *layer);
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#endif
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