diff options
Diffstat (limited to 'include/wlr')
| -rw-r--r-- | include/wlr/types/wlr_output_damage.h | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_output_damage.h b/include/wlr/types/wlr_output_damage.h new file mode 100644 index 00000000..eadbff29 --- /dev/null +++ b/include/wlr/types/wlr_output_damage.h @@ -0,0 +1,45 @@ +#ifndef WLR_TYPES_WLR_OUTPUT_DAMAGE_H +#define WLR_TYPES_WLR_OUTPUT_DAMAGE_H + +#include <pixman.h> + +/** + * Damage tracking requires to keep track of previous frames' damage. To allow + * damage tracking to work with triple buffering, a history of two frames is + * required. + */ +#define WLR_OUTPUT_DAMAGE_PREVIOUS_LEN 2 + +struct wlr_output_damage { + struct wlr_output *output; + + pixman_region32_t current; // in output-local coordinates + + // circular queue for previous damage + pixman_region32_t previous[WLR_OUTPUT_DAMAGE_PREVIOUS_LEN]; + size_t previous_idx; + + struct { + struct wl_signal frame; + struct wl_signal destroy; + } events; + + struct wl_listener output_destroy; + struct wl_listener output_mode; + struct wl_listener output_needs_swap; + struct wl_listener output_frame; +}; + +struct wlr_output_damage *wlr_output_damage_create(struct wlr_output *output); +void wlr_output_damage_destroy(struct wlr_output_damage *output_damage); +bool wlr_output_damage_make_current(struct wlr_output_damage *output_damage, + bool *needs_swap, pixman_region32_t *damage); +bool wlr_output_damage_swap_buffers(struct wlr_output_damage *output_damage, + struct timespec *when, pixman_region32_t *damage); +void wlr_output_damage_add(struct wlr_output_damage *output_damage, + pixman_region32_t *damage); +void wlr_output_damage_add_whole(struct wlr_output_damage *output_damage); +void wlr_output_damage_add_box(struct wlr_output_damage *output_damage, + struct wlr_box *box); + +#endif |