mirror of
https://gitlab.freedesktop.org/emersion/libliftoff.git
synced 2024-12-25 21:59:11 +01:00
a3dc9c48e4
When doing the first commit, libliftoff will try to disable all candidate planes. This is necessary to make sure we start atomic test commits from a clean state, and are able to incrementally come up with a combination which works. However, disabling a plane currently in-use on another CRTC (e.g. a primary plane) will result in failed commits. We can't steal that plane without removing it from the other CRTC first. Add a new liftoff_plane.crtc_id field populated with the current CRTC ID for the plane.
120 lines
2.5 KiB
C
120 lines
2.5 KiB
C
#ifndef PRIVATE_H
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#define PRIVATE_H
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#include <libliftoff.h>
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#include "list.h"
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#include "log.h"
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/* Layer priority is assigned depending on the number of updates during a
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* given number of page-flips */
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#define LIFTOFF_PRIORITY_PERIOD 60
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struct liftoff_device {
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int drm_fd;
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struct liftoff_list planes; /* liftoff_plane.link */
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struct liftoff_list outputs; /* liftoff_output.link */
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uint32_t *crtcs;
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size_t crtcs_len;
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int page_flip_counter;
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int test_commit_counter;
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};
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struct liftoff_output {
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struct liftoff_device *device;
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uint32_t crtc_id;
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size_t crtc_index;
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struct liftoff_list link; /* liftoff_device.outputs */
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struct liftoff_layer *composition_layer;
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struct liftoff_list layers; /* liftoff_layer.link */
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/* layer added or removed, or composition layer changed */
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bool layers_changed;
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int alloc_reused_counter;
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};
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struct liftoff_layer {
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struct liftoff_output *output;
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struct liftoff_list link; /* liftoff_output.layers */
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struct liftoff_layer_property *props;
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size_t props_len;
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bool force_composition; /* FB needs to be composited */
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struct liftoff_plane *plane;
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int current_priority, pending_priority;
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/* prop added or force_composition changed */
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bool changed;
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};
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struct liftoff_layer_property {
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char name[DRM_PROP_NAME_LEN];
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uint64_t value, prev_value;
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};
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struct liftoff_plane {
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uint32_t id;
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uint32_t possible_crtcs;
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uint32_t type;
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int zpos; /* greater values mean closer to the eye */
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/* TODO: formats */
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struct liftoff_list link; /* liftoff_device.planes */
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struct liftoff_plane_property *props;
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size_t props_len;
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struct liftoff_layer *layer;
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/* Used to avoid picking planes currently in-use by other CRTCs on first
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* commit */
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uint32_t crtc_id;
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};
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struct liftoff_plane_property {
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char name[DRM_PROP_NAME_LEN];
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uint32_t id;
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};
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struct liftoff_rect {
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int x, y;
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int width, height;
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};
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int
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device_test_commit(struct liftoff_device *device, drmModeAtomicReq *req,
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uint32_t flags);
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struct liftoff_layer_property *
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layer_get_property(struct liftoff_layer *layer, const char *name);
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void
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layer_get_rect(struct liftoff_layer *layer, struct liftoff_rect *rect);
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bool
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layer_intersects(struct liftoff_layer *a, struct liftoff_layer *b);
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void
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layer_mark_clean(struct liftoff_layer *layer);
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void
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layer_update_priority(struct liftoff_layer *layer, bool make_current);
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bool
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layer_has_fb(struct liftoff_layer *layer);
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bool
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layer_is_visible(struct liftoff_layer *layer);
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int
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plane_apply(struct liftoff_plane *plane, struct liftoff_layer *layer,
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drmModeAtomicReq *req);
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void
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output_log_layers(struct liftoff_output *output);
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#endif
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