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backend/drm: add support for adaptive_sync_enabled

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The vrr_capable and VRR_ENABLED properties are used.
This commit is contained in:
Simon Ser 2020-01-10 16:04:19 +01:00 committed by Drew DeVault
parent 9be1af3afb
commit 52c67284e2
3 changed files with 46 additions and 0 deletions
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42
backend/drm/drm.c
View file

@ -412,6 +412,43 @@ static bool drm_connector_commit_buffer(struct wlr_output *output) {
return true;
}
static void drm_connector_enable_adaptive_sync(struct wlr_output *output,
bool enabled) {
struct wlr_drm_connector *conn = get_drm_connector_from_output(output);
struct wlr_drm_backend *drm = get_drm_backend_from_backend(output->backend);
struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) {
return;
}
uint64_t vrr_capable;
if (conn->props.vrr_capable == 0 ||
!get_drm_prop(drm->fd, conn->id, conn->props.vrr_capable,
&vrr_capable) || !vrr_capable) {
wlr_log(WLR_DEBUG, "Failed to enable adaptive sync: "
"connector '%s' doesn't support VRR", output->name);
return;
}
if (crtc->props.vrr_enabled == 0) {
wlr_log(WLR_DEBUG, "Failed to enable adaptive sync: "
"CRTC %"PRIu32" doesn't support VRR", crtc->id);
return;
}
if (drmModeObjectSetProperty(drm->fd, crtc->id, DRM_MODE_OBJECT_CRTC,
crtc->props.vrr_enabled, enabled) != 0) {
wlr_log_errno(WLR_ERROR, "drmModeObjectSetProperty(VRR_ENABLED) failed");
return;
}
output->adaptive_sync_status = enabled ? WLR_OUTPUT_ADAPTIVE_SYNC_ENABLED :
WLR_OUTPUT_ADAPTIVE_SYNC_DISABLED;
wlr_log(WLR_DEBUG, "VRR %s on connector '%s'",
enabled ? "enabled" : "disabled", output->name);
}
static bool drm_connector_set_custom_mode(struct wlr_output *output,
int32_t width, int32_t height, int32_t refresh);
@ -446,6 +483,11 @@ static bool drm_connector_commit(struct wlr_output *output) {
}
}
if (output->pending.committed & WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED) {
drm_connector_enable_adaptive_sync(output,
output->pending.adaptive_sync_enabled);
}
// TODO: support modesetting with a buffer
if (output->pending.committed & WLR_OUTPUT_STATE_BUFFER &&
!(output->pending.committed & WLR_OUTPUT_STATE_MODE)) {

2
backend/drm/properties.c
View file

@ -24,6 +24,7 @@ static const struct prop_info connector_info[] = {
{ "EDID", INDEX(edid) },
{ "PATH", INDEX(path) },
{ "link-status", INDEX(link_status) },
{ "vrr_capable", INDEX(vrr_capable) },
#undef INDEX
};
@ -33,6 +34,7 @@ static const struct prop_info crtc_info[] = {
{ "GAMMA_LUT", INDEX(gamma_lut) },
{ "GAMMA_LUT_SIZE", INDEX(gamma_lut_size) },
{ "MODE_ID", INDEX(mode_id) },
{ "VRR_ENABLED", INDEX(vrr_enabled) },
{ "rotation", INDEX(rotation) },
{ "scaling mode", INDEX(scaling_mode) },
#undef INDEX

2
include/backend/drm/properties.h
View file

@ -16,6 +16,7 @@ union wlr_drm_connector_props {
uint32_t dpms;
uint32_t link_status; // not guaranteed to exist
uint32_t path;
uint32_t vrr_capable; // not guaranteed to exist
// atomic-modesetting only
@ -29,6 +30,7 @@ union wlr_drm_crtc_props {
// Neither of these are guaranteed to exist
uint32_t rotation;
uint32_t scaling_mode;
uint32_t vrr_enabled;
// atomic-modesetting only