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emersion 2018-01-21 11:11:25 +01:00
parent 0365b587f0
commit c6aab6f56c
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GPG key ID: 0FDE7BE0E88F5E48
3 changed files with 32 additions and 16 deletions
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6
include/rootston/output.h
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@ -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;