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5a38cc57c8
For development to continue on systems (such as optimus laptops) that have multiple GPUs, we need a way to reference all of the renderers that have been created for devices in the system. A wlr_multi_gpu struct holds renderers coming from two different sources: 1. the primary renderer (given to us by the compositor) 2. drm sub backends, each of which has a renderer created for cross-GPU copies. This change provides a way to access all of these from the same place.
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/*
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* This an unstable interface of wlroots. No guarantees are made regarding the
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* future consistency of this API.
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*/
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#ifndef WLR_USE_UNSTABLE
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#error "Add -DWLR_USE_UNSTABLE to enable unstable wlroots features"
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#endif
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#ifndef WLR_BACKEND_MULTI_H
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#define WLR_BACKEND_MULTI_H
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#include <wlr/backend.h>
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/**
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* Creates a multi-backend. Multi-backends wrap an arbitrary number of backends
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* and aggregate their new_output/new_input signals.
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*/
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struct wlr_backend *wlr_multi_backend_create(struct wl_event_loop *loop);
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/**
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* Adds the given backend to the multi backend. This should be done before the
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* new backend is started.
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*/
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bool wlr_multi_backend_add(struct wlr_backend *multi,
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struct wlr_backend *backend);
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void wlr_multi_backend_remove(struct wlr_backend *multi,
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struct wlr_backend *backend);
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bool wlr_backend_is_multi(struct wlr_backend *backend);
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bool wlr_multi_is_empty(struct wlr_backend *backend);
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void wlr_multi_for_each_backend(struct wlr_backend *backend,
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void (*callback)(struct wlr_backend *backend, void *data), void *data);
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struct wlr_multi_gpu *wlr_multi_gpu_create(void);
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void wlr_multi_gpu_destroy(struct wlr_multi_gpu *multi_gpu);
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#endif
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