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driver: choose sgi_video_sync scheduler for NVIDIA

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Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui 2023-12-19 10:29:59 +00:00
parent b582d2989e
commit a28e221b83
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GPG key ID: D3A4405BE6CC17F4
3 changed files with 17 additions and 5 deletions
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7
src/backend/driver.c
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@ -19,6 +19,13 @@ void apply_driver_workarounds(struct session *ps, enum driver driver) {
} }
} }
enum vblank_scheduler_type choose_vblank_scheduler(enum driver driver) {
if (driver & DRIVER_NVIDIA) {
return VBLANK_SCHEDULER_SGI_VIDEO_SYNC;
}
return VBLANK_SCHEDULER_PRESENT;
}
enum driver detect_driver(xcb_connection_t *c, backend_t *backend_data, xcb_window_t window) { enum driver detect_driver(xcb_connection_t *c, backend_t *backend_data, xcb_window_t window) {
enum driver ret = 0; enum driver ret = 0;
// First we try doing backend agnostic detection using RANDR // First we try doing backend agnostic detection using RANDR

3
src/backend/driver.h
View file

@ -7,6 +7,7 @@
#include <stdio.h> #include <stdio.h>
#include <xcb/xcb.h> #include <xcb/xcb.h>
#include "config.h"
#include "utils.h" #include "utils.h"
struct session; struct session;
@ -41,6 +42,8 @@ enum driver detect_driver(xcb_connection_t *, struct backend_base *, xcb_window_
/// Apply driver specified global workarounds. It's safe to call this multiple times. /// Apply driver specified global workarounds. It's safe to call this multiple times.
void apply_driver_workarounds(struct session *ps, enum driver); void apply_driver_workarounds(struct session *ps, enum driver);
/// Choose a vblank scheduler based on the driver.
enum vblank_scheduler_type choose_vblank_scheduler(enum driver driver);
// Print driver names to stdout, for diagnostics // Print driver names to stdout, for diagnostics
static inline void print_drivers(enum driver drivers) { static inline void print_drivers(enum driver drivers) {

12
src/picom.c
View file

@ -1493,6 +1493,10 @@ static bool redirect_start(session_t *ps) {
ps->frame_pacing = false; ps->frame_pacing = false;
} }
// Re-detect driver since we now have a backend
ps->drivers = detect_driver(ps->c.c, ps->backend_data, ps->c.screen_info->root);
apply_driver_workarounds(ps, ps->drivers);
if (ps->present_exists && ps->frame_pacing) { if (ps->present_exists && ps->frame_pacing) {
// Initialize rendering and frame timing statistics, and frame pacing // Initialize rendering and frame timing statistics, and frame pacing
// states. // states.
@ -1500,11 +1504,13 @@ static bool redirect_start(session_t *ps) {
ps->last_msc = 0; ps->last_msc = 0;
ps->last_schedule_delay = 0; ps->last_schedule_delay = 0;
render_statistics_reset(&ps->render_stats); render_statistics_reset(&ps->render_stats);
enum vblank_scheduler_type scheduler_type = VBLANK_SCHEDULER_PRESENT; enum vblank_scheduler_type scheduler_type =
choose_vblank_scheduler(ps->drivers);
if (ps->o.debug_options.force_vblank_scheduler != LAST_VBLANK_SCHEDULER) { if (ps->o.debug_options.force_vblank_scheduler != LAST_VBLANK_SCHEDULER) {
scheduler_type = scheduler_type =
(enum vblank_scheduler_type)ps->o.debug_options.force_vblank_scheduler; (enum vblank_scheduler_type)ps->o.debug_options.force_vblank_scheduler;
} }
log_info("Using vblank scheduler: %s.", vblank_scheduler_str[scheduler_type]);
ps->vblank_scheduler = vblank_scheduler_new( ps->vblank_scheduler = vblank_scheduler_new(
ps->loop, &ps->c, session_get_target_window(ps), scheduler_type); ps->loop, &ps->c, session_get_target_window(ps), scheduler_type);
if (!ps->vblank_scheduler) { if (!ps->vblank_scheduler) {
@ -1523,10 +1529,6 @@ static bool redirect_start(session_t *ps) {
ps->redirected = true; ps->redirected = true;
ps->first_frame = true; ps->first_frame = true;
// Re-detect driver since we now have a backend
ps->drivers = detect_driver(ps->c.c, ps->backend_data, ps->c.screen_info->root);
apply_driver_workarounds(ps, ps->drivers);
root_damaged(ps); root_damaged(ps);
// Repaint the whole screen // Repaint the whole screen