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output: introduce wlr_output_lock_attach_render

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This allows screen shooters and screen grabbers to ensure rendering will be
used instead of direct scan-out.
This commit is contained in:
Simon Ser 2019-05-25 18:51:28 +03:00 • committed by Drew DeVault
parent e554c593f9
commit 6c659da98b
4 changed files with 28 additions and 0 deletions
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9
include/wlr/types/wlr_output.h
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@ -137,6 +137,8 @@ struct wlr_output {
struct wl_event_source *idle_frame;
struct wl_event_source *idle_done;
int attach_render_locks; // number of locks forcing rendering
struct wl_list cursors; // wlr_output_cursor::link
struct wlr_output_cursor *hardware_cursor;
int software_cursor_locks; // number of locks forcing software cursors
@ -287,6 +289,13 @@ bool wlr_output_set_gamma(struct wlr_output *output, size_t size,
bool wlr_output_export_dmabuf(struct wlr_output *output,
struct wlr_dmabuf_attributes *attribs);
struct wlr_output *wlr_output_from_resource(struct wl_resource *resource);
/**
* Locks the output to only use rendering instead of direct scan-out. This is
* useful if direct scan-out needs to be temporarily disabled (e.g. during
* screen capture). There must be as many unlocks as there have been locks to
* restore the original state. There should never be an unlock before a lock.
*/
void wlr_output_lock_attach_render(struct wlr_output *output, bool lock);
/**
* Locks the output to only use software cursors instead of hardware cursors.
* This is useful if hardware cursors need to be temporarily disabled (e.g.