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output: switch swap_buffers damage to output-buffer-local coords

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This is one more step towards [1]. This gives more freedom to the compositor
wrt. how it handles damage.

[1]: https://github.com/swaywm/wlroots/issues/1363
This commit is contained in:
emersion 2018-12-01 10:56:35 +01:00
parent a22311ec76
commit 6aaefad40d
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GPG key ID: 0FDE7BE0E88F5E48
3 changed files with 12 additions and 14 deletions
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5
include/wlr/types/wlr_output.h
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@ -121,7 +121,7 @@ struct wlr_output {
struct wlr_output_event_swap_buffers {
struct wlr_output *output;
struct timespec *when;
pixman_region32_t *damage;
pixman_region32_t *damage; // output-buffer-local coordinates
};
enum wlr_output_present_flag {
@ -203,6 +203,9 @@ bool wlr_output_preferred_read_format(struct wlr_output *output,
* NULL. If the compositor doesn't support damage tracking, set `damage` to
* NULL.
*
* Damage is given in output-buffer-local coordinates (ie. scaled and
* transformed).
*
* Swapping buffers schedules a `frame` event.
*/
bool wlr_output_swap_buffers(struct wlr_output *output, struct timespec *when,