diff options
Diffstat (limited to 'include/rootston')
| -rw-r--r-- | include/rootston/output.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/rootston/output.h b/include/rootston/output.h index c0022d1a..89fe1d82 100644 --- a/include/rootston/output.h +++ b/include/rootston/output.h @@ -5,6 +5,11 @@ #include <pixman.h> #include <wayland-server.h> +/** + * Damage tracking requires to keep track of previous frames' damage. To allow + * damage tracking to work with triple buffering, an history of two frames is + * required. + */ #define ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN 2 struct roots_desktop; @@ -20,6 +25,7 @@ struct roots_output { pixman_region32_t damage; bool frame_pending; + // circular queue for previous damage pixman_region32_t previous_damage[ROOTS_OUTPUT_PREVIOUS_DAMAGE_LEN]; size_t previous_damage_idx; |