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Ensure the maximum cursor latency(10Hz)

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This commit is contained in:
yuiiio 2025-11-17 21:56:24 +09:00
parent 3a16ca8ace
commit fae4d6c935
3 changed files with 37 additions and 7 deletions
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3
include/wlr/types/wlr_output.h
View file

@ -51,6 +51,7 @@ struct wlr_output_cursor {
uint64_t wait_point;
struct wl_list link;
struct timespec last_presentation;
bool deferred;
double deferred_x, deferred_y;
@ -462,7 +463,7 @@ bool wlr_output_cursor_set_buffer(struct wlr_output_cursor *cursor,
struct wlr_buffer *buffer, int32_t hotspot_x, int32_t hotspot_y);
bool wlr_output_cursor_move(struct wlr_output_cursor *cursor,
double x, double y);
void wlr_output_cursor_move_all_deferred(struct wlr_output *output);
void wlr_output_cursor_move_all_deferred(struct wlr_output *output, struct timespec *now);
void wlr_output_cursor_destroy(struct wlr_output_cursor *cursor);
/**

36
types/output/cursor.c
View file

@ -13,6 +13,7 @@
#include "render/color.h"
#include "types/wlr_buffer.h"
#include "types/wlr_output.h"
#include <util/time.h>
static bool output_set_hardware_cursor(struct wlr_output *output,
struct wlr_buffer *buffer, int hotspot_x, int hotspot_y) {
@ -441,8 +442,9 @@ bool output_cursor_set_texture(struct wlr_output_cursor *cursor,
}
static bool output_cursor_move(struct wlr_output_cursor *cursor,
double x, double y) {
double x, double y, struct timespec *now) {
cursor->deferred = false;
cursor->last_presentation = *now;
// Scale coordinates for the output
x *= cursor->output->scale;
@ -474,6 +476,22 @@ static bool output_cursor_move(struct wlr_output_cursor *cursor,
return output_move_hardware_cursor(cursor->output, (int)x, (int)y);
}
static bool output_cursor_move_should_defer(struct wlr_output_cursor *cursor,
struct timespec *now) {
if (cursor->output->adaptive_sync_status != WLR_OUTPUT_ADAPTIVE_SYNC_ENABLED)
return false;
struct timespec delta;
int32_t vrr_min = NSEC_PER_SEC / 10; // enforce 10fps minimum for now.
timespec_sub(&delta, now, &cursor->last_presentation);
if (delta.tv_sec || delta.tv_nsec >= vrr_min)
return false;
return true;
}
bool wlr_output_cursor_move(struct wlr_output_cursor *cursor,
double x, double y) {
// Scale coordinates for the output
@ -484,21 +502,29 @@ bool wlr_output_cursor_move(struct wlr_output_cursor *cursor,
return true;
}
if (cursor->output->adaptive_sync_status == WLR_OUTPUT_ADAPTIVE_SYNC_ENABLED) {
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
if (output_cursor_move_should_defer(cursor, &now)) {
cursor->deferred_x = x;
cursor->deferred_y = y;
cursor->deferred = true;
return true;
}
return output_cursor_move(cursor, x, y);
return output_cursor_move(cursor, x, y, &now);
}
void wlr_output_cursor_move_all_deferred(struct wlr_output *output) {
void wlr_output_cursor_move_all_deferred(struct wlr_output *output, struct timespec *now) {
struct wlr_output_cursor *cursor;
wl_list_for_each(cursor, &output->cursors, link) {
if (cursor->deferred)
output_cursor_move(cursor, cursor->deferred_x, cursor->deferred_y);
output_cursor_move(cursor, cursor->deferred_x, cursor->deferred_y, now);
else {
// Should be on wlr_output?
cursor->last_presentation = *now;
};
}
}

5
types/scene/wlr_scene.c
View file

@ -2321,7 +2321,10 @@ bool wlr_scene_output_build_state(struct wlr_scene_output *scene_output,
// before scanout early return,
// update cursor if deferred
wlr_output_cursor_move_all_deferred(output);
struct timespec cursor_now;
clock_gettime(CLOCK_MONOTONIC, &cursor_now);
wlr_output_cursor_move_all_deferred(output, &cursor_now);
// We only want to try direct scanout if:
// - There is only one entry in the render list